Page 1 Title Page GE Industrial Systems L30 Line Current Differential System UR Series Instruction Manual L30 revision: 5.7x Manual P/N: 1601-9050-U3 (GEK-113525B) Copyright © 2010 GE Multilin 831776A2.CDR E83849 I I SO9001:2000 GE Multilin LISTED 215 Anderson Avenue, Markham, Ontario IND.CONT. EQ.
Page 3 GE Industrial Systems ADDENDUM This addendum contains information that relates to the L30 Line Current Differential System, version 5.7x. This adden- dum lists a number of information items that appear in the instruction manual GEK-113525B (revision U3) but are not included in the current L30 operations.
Page 5: Table Of Contents
1.3 ENERVISTA UR SETUP SOFTWARE 1.3.1 PC REQUIREMENTS ..................1-5 1.3.2 INSTALLATION....................1-5 1.3.3 CONFIGURING THE L30 FOR SOFTWARE ACCESS........1-6 1.3.4 USING THE QUICK CONNECT FEATURE............1-9 1.3.5 CONNECTING TO THE L30 RELAY ............... 1-15 1.4 UR HARDWARE 1.4.1 MOUNTING AND WIRING................
Page 6 MANAGED ETHERNET SWITCH MODULE HARDWARE......3-39 3.4.3 MANAGED SWITCH LED INDICATORS ............3-40 3.4.4 CONFIGURING THE MANAGED ETHERNET SWITCH MODULE ....3-40 3.4.5 UPLOADING L30 SWITCH MODULE FIRMWARE..........3-43 3.4.6 ETHERNET SWITCH SELF-TEST ERRORS...........3-45 4. HUMAN INTERFACES 4.1 ENERVISTA UR SETUP SOFTWARE INTERFACE 4.1.1 INTRODUCTION ....................4-1...
Page 7 TRIP BUS....................... 5-184 5.8 INPUTS AND OUTPUTS 5.8.1 CONTACT INPUTS..................5-186 5.8.2 VIRTUAL INPUTS..................5-188 5.8.3 CONTACT OUTPUTS..................5-189 5.8.4 VIRTUAL OUTPUTS ..................5-191 5.8.5 REMOTE DEVICES ..................5-192 5.8.6 REMOTE INPUTS..................5-193 GE Multilin L30 Line Current Differential System...
Page 8 DATA LOGGER ....................6-22 6.4.5 PHASOR MEASUREMENT UNIT RECORDS ..........6-22 6.4.6 BREAKER MAINTENANCE ................6-23 6.5 PRODUCT INFORMATION 6.5.1 MODEL INFORMATION ...................6-24 6.5.2 FIRMWARE REVISIONS..................6-24 7. COMMANDS AND 7.1 COMMANDS 7.1.1 COMMANDS MENU ...................7-1 TARGETS viii L30 Line Current Differential System GE Multilin...
Page 9 9.1.19 DIFFERENTIAL ELEMENT CHARACTERISTICS........... 9-14 9.1.20 RELAY SYNCHRONIZATION................9-15 9.2 OPERATING CONDITION CHARACTERISTICS 9.2.1 DESCRIPTION....................9-16 9.2.2 TRIP DECISION EXAMPLE................9-18 9.2.3 TRIP DECISION TEST ..................9-18 9.3 FAULT LOCATOR 9.3.1 DESCRIPTION....................9-20 GE Multilin L30 Line Current Differential System...
Page 10 10.3.2 COMPENSATION METHOD 1 .................10-6 10.3.3 COMPENSATION METHOD 2 .................10-7 10.3.4 COMPENSATION METHOD 3 .................10-7 10.4 INSTANTANEOUS ELEMENTS 10.4.1 INSTANTANEOUS ELEMENT ERROR DURING L30 SYNCHRONIZATION .10-9 11. COMMISSIONING 11.1 TESTING 11.1.1 CHANNEL TESTING ..................11-1 11.1.2 CLOCK SYNCHRONIZATION TESTS .............11-2 11.1.3 CURRENT DIFFERENTIAL................11-3...
Page 11 BINARY INPUT POINTS..................E-8 E.2.2 BINARY AND CONTROL RELAY OUTPUT ............E-9 E.2.3 COUNTERS .....................E-10 E.2.4 ANALOG INPUTS ....................E-11 F. MISCELLANEOUS F.1 CHANGE NOTES F.1.1 REVISION HISTORY ..................F-1 F.1.2 CHANGES TO THE L30 MANUAL ..............F-1 GE Multilin L30 Line Current Differential System...
Page 12 TABLE OF CONTENTS F.2 ABBREVIATIONS F.2.1 STANDARD ABBREVIATIONS ................. F-3 F.3 WARRANTY F.3.1 GE MULTILIN WARRANTY................F-5 L30 Line Current Differential System GE Multilin...
Page 13: Cautions And Warnings
• GE EnerVista CD (includes the EnerVista UR Setup software and manuals in PDF format). • Mounting screws. For product information, instruction manual updates, and the latest software updates, please visit the GE Multilin website at http://www.GEmultilin.com. If there is any noticeable physical damage, or any of the contents listed are missing, please contact GE Multilin immediately.
Page 14: Introduction To The Ur
This new generation of equipment must also be easily incorporated into automation systems, at both the station and enterprise levels. The GE Multilin Universal Relay (UR) has been developed to meet these goals. L30 Line Current Differential System...
Page 15: Hardware Architecture
(dual) ring configuration. This feature is optimized for speed and intended for pilot- aided schemes, distributed logic applications, or the extension of the input/output capabilities of a single relay chassis. GE Multilin L30 Line Current Differential System...
Page 16: Software Architecture
Employing OOD/OOP in the software architecture of the L30 achieves the same features as the hardware architecture: modularity, scalability, and flexibility. The application software for any UR-series device (for example, feeder protection, transformer protection, distance protection) is constructed by combining objects from the various functionality classes.
Page 17: Pc Requirements
Video capable of displaying 800 x 600 or higher in high-color mode (16-bit color) • RS232 and/or Ethernet port for communications to the relay The following qualified modems have been tested to be compliant with the L30 and the EnerVista UR Setup software. • US Robotics external 56K FaxModem 5686 •...
Page 18: Configuring The L30 For Software Access
OVERVIEW The user can connect remotely to the L30 through the rear RS485 port or the rear Ethernet port with a PC running the EnerVista UR Setup software. The L30 can also be accessed locally with a laptop computer through the front panel RS232 port or the rear Ethernet port using the Quick Connect feature.
Page 19 • To configure the L30 for local access with a laptop through either the front RS232 port or rear Ethernet port, refer to the Using the Quick Connect Feature section. An Ethernet module must be specified at the time of ordering for Ethernet communications.
Page 20 SERIAL PORTS 10. Click the Read Order Code button to connect to the L30 device and upload the order code. If an communications error occurs, ensure that the EnerVista UR Setup serial communications values entered in the previous step correspond to the relay setting values.
Page 21: Using The Quick Connect Feature
L30. This ensures that configuration of the EnerVista UR Setup software matches the L30 model number. b) USING QUICK CONNECT VIA THE REAR ETHERNET PORTS To use the Quick Connect feature to access the L30 from a laptop through Ethernet, first assign an IP address to the relay from the front panel keyboard.
Page 22 Now, assign the laptop computer an IP address compatible with the relay’s IP address. From the Windows desktop, right-click the My Network Places icon and select Properties to open the network con- nections window. Right-click the Local Area Connection icon and select Properties. 1-10 L30 Line Current Differential System GE Multilin...
Page 23 Select the Internet Protocol (TCP/IP) item from the list provided and click the Properties button. Click on the “Use the following IP address” box. Enter an IP address with the first three numbers the same as the IP address of the L30 relay and the last number dif- ferent (in this example, 1.1.1.2).
Page 24 Minimum = 0ms, Maximum = 0ms, Average = 0 ms Pinging 1.1.1.1 with 32 bytes of data: Verify the physical connection between the L30 and the laptop computer, and double-check the programmed IP address in setting, then repeat step 2 in the above procedure.
Page 25 If this computer is used to connect to the Internet, re-enable any proxy server settings after the laptop has been discon- nected from the L30 relay. Verify that the latest version of the EnerVista UR Setup software is installed (available from the GE enerVista CD or online from http://www.GEmultilin.com). See the Software Installation section for installation details.
Page 26 Set the computer to “Obtain a relay address automatically” as shown below. If this computer is used to connect to the Internet, re-enable any proxy server settings after the laptop has been discon- nected from the L30 relay. AUTOMATIC DISCOVERY OF ETHERNET DEVICES The EnerVista UR Setup software can automatically discover and communicate to all UR-series IEDs located on an Ether- net network.
Page 27: Connecting To The L30 Relay
The EnerVista UR Setup software has several new quick action buttons that provide users with instant access to several functions that are often performed when using L30 relays. From the online window, users can select which relay to interro- gate from a pull-down window, then click on the button for the action they wish to perform. The following quick action func- tions are available: •...
Page 28: Mounting And Wiring
Figure 1–7: RELAY COMMUNICATIONS OPTIONS To communicate through the L30 rear RS485 port from a PC RS232 port, the GE Multilin RS232/RS485 converter box is required. This device (catalog number F485) connects to the computer using a “straight-through” serial cable. A shielded twisted-pair (20, 22, or 24 AWG) connects the F485 converter to the L30 rear communications port.
Page 29: Faceplate Keypad
LED off. The relay in the “Not Programmed” state will block signaling of any output relay. These conditions will remain until the relay is explicitly put in the “Programmed” state. Select the menu message SETTINGS PRODUCT SETUP INSTALLATION RELAY SETTINGS RELAY SETTINGS: Not Programmed GE Multilin L30 Line Current Differential System 1-17...
Page 30: Relay Passwords
Refer to the Changing Settings section in Chapter 4 for complete instructions on setting up security level passwords. NOTE 1.5.6 FLEXLOGIC™ CUSTOMIZATION FlexLogic™ equation editing is required for setting up user-defined logic for customizing the relay operations. See the Flex- Logic™ section in Chapter 5 for additional details. 1-18 L30 Line Current Differential System GE Multilin...
Page 31: Commissioning
1.5 USING THE RELAY 1.5.7 COMMISSIONING The L30 requires a minimum amount of maintenance when it is commissioned into service. Since the L30 is a microproces- sor-based relay, its characteristics do not change over time. As such, no further functional tests are required.
Page 32 1.5 USING THE RELAY 1 GETTING STARTED 1-20 L30 Line Current Differential System GE Multilin...
Page 33: Overview
The L30 is intended to provide complete protection for transmission lines of any voltage level. Both three phase and single phase tripping schemes are available. Models of the L30 are available for application on both two and three terminal lines.
Page 34 Direct inputs (8 per pilot channel) Modbus user map Virtual inputs (64) Disconnect switches Non-volatile latches Virtual outputs (96) DNP 3.0 or IEC 60870-5-104 protocol Non-volatile selector switch VT fuse failure Event recorder Oscillography L30 Line Current Differential System GE Multilin...
Page 35: Features
Zero-sequence removal for application on lines with tapped transformers connected in a grounded wye on the line side. • GE phaselets approach based on the Discrete Fourier Transform with 64 samples per cycle and transmitting two time- stamped phaselets per cycle. •...
Page 36: Ordering
2.1.3 ORDERING a) OVERVIEW The L30 is available as a 19-inch rack horizontal mount or reduced-size (¾) vertical unit and consists of the following mod- ules: power supply, CPU, CT/VT, digital input and output, transducer input and output, and inter-relay communications.
Page 37 2.1 INTRODUCTION b) ORDER CODES WITH TRADITIONAL CTS AND VTS The order codes for the horizontal mount units with traditional CTs and VTs are shown below. Table 2–3: L30 ORDER CODES (HORIZONTAL UNITS) * - F - W/X Full Size Horizontal Mount...
Page 38 2.1 INTRODUCTION 2 PRODUCT DESCRIPTION The order codes for the reduced size vertical mount units with traditional CTs and VTs are shown below. Table 2–4: L30 ORDER CODES (REDUCED SIZE VERTICAL UNITS) * - F Reduced Size Vertical Mount BASE UNIT...
Page 39 2.1 INTRODUCTION c) ORDER CODES WITH PROCESS BUS MODULES The order codes for the horizontal mount units with the process bus module are shown below. Table 2–5: L30 ORDER CODES (HORIZONTAL UNITS WITH PROCESS BUS) * - F - W/X...
Page 40: Replacement Modules
Replacement modules can be ordered separately as shown below. When ordering a replacement CPU module or face- plate, please provide the serial number of your existing unit. Not all replacement modules may be applicable to the L30 relay. Only the modules specified in the order codes are available as replacement modules.
Page 41 Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, LASER Channel 1 - G.703; Channel 2 - 1300 nm, single-mode LASER G.703, 1 Channel G.703, 2 Channels RS422, 1 Channel RS422, 2 Channels GE Multilin L30 Line Current Differential System...
Page 42 Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, LASER Channel 1 - G.703; Channel 2 - 1300 nm, single-mode LASER G.703, 1 Channel G.703, 2 Channels RS422, 1 Channel RS422, 2 Channels 2-10 L30 Line Current Differential System GE Multilin...
Page 43: Inter-Relay Communications
(DTT) signal to all of the other L30 relays on the protected line. If a slave L30 relay issues a trip from one of its backup functions, it can send a transfer trip signal to its master and other slave relays if such option is designated.
Page 44: Channel Monitor
2.2.2 CHANNEL MONITOR The L30 has logic to detect that the communications channel is deteriorating or has failed completely. This can provide an alarm indication and disable the current differential protection. Note that a failure of the communications from the master to a slave does not prevent the master from performing the current differential algorithm;...
Page 45: Loopback Test
The L30 includes provision for sending and receiving a single-pole direct transfer trip (DTT) signal from current differential protection between the L30 relays at the line terminals using the pilot communications channel. The user may also initiate an additional eight pilot signals with an L30 communications channel to create trip, block, or signaling logic. A FlexLogic™...
Page 46: Protection And Control Functions
Current differential protection: The current differential algorithms used in the L30 Line Current Differential System are based on the Fourier transform phaselet approach and an adaptive statistical restraint. The L30 uses per-phase differential at 64 kbps with two phaselets per cycle. A detailed description of the current differential algorithms is found in chapter 8.
Page 47: Other Functions
PFLL Status Frequency Deviation Phase and Frequency Master Locked Loop (PFLL) Clock Phase Deviation PHASELETS TO REMOTE Communications Remote Relay PHASELETS FROM REMOTE Interface Direct Transfer Trip 831732A3.CDR Figure 2–3: L30 BLOCK DIAGRAM GE Multilin L30 Line Current Differential System 2-15...
Page 48 Offset and Sequence Charging Current Currents Phaselets Compute Phasors Phaselets Phaselets Align Phaselets Phaselets Compute Phasors and Variance Parameters Fault Detector Trip Output Disturbance Logic Detector 831749A1.CDR Figure 2–4: MAIN SOFTWARE MODULES 2-16 L30 Line Current Differential System GE Multilin...
Page 49: Protection Elements
0.00 to 600.00 s in steps of 0.01 < 20 ms at 3 × pickup at 60 Hz Operate time: Operate at 1.5 × pickup Timing accuracy: ±3% or ±4 ms (whichever is greater) GE Multilin L30 Line Current Differential System 2-17...
Page 50 < 30 ms at 1.10 × pickup at 60 Hz Operate time: TRIP BUS (TRIP WITHOUT FLEXLOGIC™) Number of elements: Number of inputs: Operate time: <2 ms at 60 Hz Time accuracy: ±3% or 10 ms, whichever is greater 2-18 L30 Line Current Differential System GE Multilin...
Page 51: User-Programmable Elements
FlexLogic™ operand Pickup delay: 0.000 to 999999.999 s in steps of 0.001 Dropout delay: 0.000 to 999999.999 s in steps of 0.001 Timing accuracy: ±3% or ±4 ms, whichever is greater GE Multilin L30 Line Current Differential System 2-19...
Page 52: Monitoring
I = 0.1 to 0.25 pu: ±0.05 Hz –0.8 < PF ≤ –1.0 and 0.8 < PF ≤ 1.0 I > 0.25 pu: ±0.001 Hz (when current signal is used for frequency measurement) 2-20 L30 Line Current Differential System GE Multilin...
Page 53: Inputs
ALL RANGES 2 × Highest Nominal Voltage for 10 ms Volt withstand: Power consumption: typical = 15 to 20 W/VA maximum = 50 W/VA contact factory for exact order code con- sumption GE Multilin L30 Line Current Differential System 2-21...
Page 54: Outputs
1 ms for AM input 40 μs for DC-shift input Isolation: 2 kV CONTROL POWER EXTERNAL OUTPUT (FOR DRY CONTACT INPUT) Capacity: 100 mA DC at 48 V DC Isolation: ±300 Vpk 2-22 L30 Line Current Differential System GE Multilin...
Page 55: Communications
15 dB Maximum input –7.6 dBm –14 dBm –7 dBm power Typical distance 1.65 km 2 km 15 km Duplex full/half full/half full/half Redundancy The UR-2S and UR-2T only support 100 Mb multimode GE Multilin L30 Line Current Differential System 2-23...
Page 56: Inter-Relay Communications
–30 dBm 29 dB Singlemode 1550 nm Laser, +5 dBm –30 dBm 35 dB Singlemode These power budgets are calculated from the manufacturer’s worst-case transmitter power NOTE and worst case receiver sensitivity. 2-24 L30 Line Current Differential System GE Multilin...
Page 57: Environmental
Pollution degree: impaired at temperatures less than – Overvoltage category: 20°C Ingress protection: IP20 front, IP10 back HUMIDITY Humidity: operating up to 95% (non-condensing) at 55°C (as per IEC60068-2-30 variant 1, 6days). GE Multilin L30 Line Current Differential System 2-25...
Page 58: Type Tests
Safety UL508 e83849 NKCR Safety UL C22.2-14 e83849 NKCR7 Safety UL1053 e83849 NKCR 2.4.12 PRODUCTION TESTS THERMAL Products go through an environmental test based upon an Accepted Quality Level (AQL) sampling process. 2-26 L30 Line Current Differential System GE Multilin...
Page 59: Approvals
Units that are stored in a de-energized state should be powered up once per year, for one hour continuously, to NOTE avoid deterioration of electrolytic capacitors. GE Multilin L30 Line Current Differential System 2-27...
Page 60 2.4 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2-28 L30 Line Current Differential System GE Multilin...
Page 61: Hardware
HORIZONTAL UNITS The L30 Line Current Differential System is available as a 19-inch rack horizontal mount unit with a removable faceplate. The faceplate can be specified as either standard or enhanced at the time of ordering. The enhanced faceplate contains additional user-programmable pushbuttons and LED indicators.
Page 62 VERTICAL UNITS The L30 Line Current Differential System is available as a reduced size (¾) vertical mount unit, with a removable faceplate. The faceplate can be specified as either standard or enhanced at the time of ordering. The enhanced faceplate contains additional user-programmable pushbuttons and LED indicators.
Page 63 RS232 communications port. The relay is secured to the panel with the use of four screws supplied with the relay. 11.015” 7.482” 1.329” 13.560” 15.000” 14.025” 4.000” 9.780” 843809A1.CDR Figure 3–4: L30 VERTICAL DIMENSIONS (ENHANCED PANEL) GE Multilin L30 Line Current Differential System...
Page 64 UR S RI S UR S RI S Figure 3–5: L30 VERTICAL MOUNTING AND DIMENSIONS (STANDARD PANEL) For details on side mounting L30 devices with the enhanced front panel, refer to the following documents available online from the GE Multilin website. •...
Page 65 3 HARDWARE 3.1 DESCRIPTION Figure 3–6: L30 VERTICAL SIDE MOUNTING INSTALLATION (STANDARD PANEL) GE Multilin L30 Line Current Differential System...
Page 66: Module Withdrawal And Insertion
The enhanced faceplate can be opened to the left, once the thumb screw has been removed, as shown below. This allows for easy accessibility of the modules for withdrawal. The new wide-angle hinge assembly in the enhanced front panel opens completely and allows easy access to all modules in the L30. L30 Line Current Differential System...
Page 67 All CPU modules except the 9E are equipped with 10/100Base-T or 100Base-F Ethernet connectors. These con- nectors must be individually disconnected from the module before it can be removed from the chassis. NOTE GE Multilin L30 Line Current Differential System...
Page 68: Rear Terminal Layout
(nearest to CPU module) which is indicated by an arrow marker on the terminal block. See the following figure for an example of rear terminal assignments. Figure 3–11: EXAMPLE OF MODULES IN F AND H SLOTS L30 Line Current Differential System GE Multilin...
Page 69: Wiring
GROUND BUS MODULE ARRANGEMENT MODULES MUST BE GROUNDED IF TERMINAL IS Inputs/ Inputs/ Inputs/ Inputs/ PROVIDED outputs outputs outputs outputs Inputs/ CT/VT Power outputs supply (Rear view) * Optional Figure 3–12: TYPICAL WIRING DIAGRAM GE Multilin L30 Line Current Differential System...
Page 70: Dielectric Strength
(see the Self-test errors section in chapter 7) or control power is lost, the relay will de-energize. For high reliability systems, the L30 has a redundant option in which two L30 power supplies are placed in parallel on the bus.
Page 71: Ct And Vt Modules
CT connections for both ABC and ACB phase rotations are identical as shown in the Typical wiring diagram. The exact placement of a zero-sequence core balance CT to detect ground fault current is shown below. Twisted-pair cabling on the zero-sequence CT is recommended. GE Multilin L30 Line Current Differential System 3-11...
Page 72 NOTE Current inputs Voltage inputs 8F, 8G, 8L, and 8M modules (4 CTs and 4 VTs) Current inputs 8H, 8J, 8N, and 8R modules (8 CTs) 842766A3.CDR Figure 3–15: CT/VT MODULE WIRING 3-12 L30 Line Current Differential System GE Multilin...
Page 73: Process Bus Modules
3.2.5 PROCESS BUS MODULES The L30 can be ordered with a process bus interface module. This module is designed to interface with the GE Multilin HardFiber system, allowing bi-directional IEC 61850 fiber optic communications with up to eight HardFiber merging units, known as Bricks.
Page 74 Logic™ operand driving the contact output should be given a reset delay of 10 ms to prevent damage of NOTE the output contact (in situations when the element initiating the contact output is bouncing, at values in the region of the pickup value). 3-14 L30 Line Current Differential System GE Multilin...
Page 75 ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs GE Multilin L30 Line Current Differential System 3-15...
Page 76 ~5a, ~5c 2 Inputs 2 Outputs Solid-State Solid-State ~6a, ~6c 2 Inputs 2 Outputs Not Used Not Used ~7a, ~7c 2 Inputs 2 Outputs Solid-State Solid-State ~8a, ~8c 2 Inputs Not Used 3-16 L30 Line Current Differential System GE Multilin...
Page 77 3 HARDWARE 3.2 WIRING 842762A2.CDR Figure 3–17: CONTACT INPUT AND OUTPUT MODULE WIRING (1 of 2) GE Multilin L30 Line Current Differential System 3-17...
Page 78 SURGE 842763A2.CDR Figure 3–18: CONTACT INPUT AND OUTPUT MODULE WIRING (2 of 2) CORRECT POLARITY MUST BE OBSERVED FOR ALL CONTACT INPUT AND SOLID STATE OUTPUT CON- NECTIONS FOR PROPER FUNCTIONALITY. CAUTION 3-18 L30 Line Current Differential System GE Multilin...
Page 79 There is no provision in the relay to detect a DC ground fault on 48 V DC control power external output. We recommend using an external DC supply. NOTE GE Multilin L30 Line Current Differential System 3-19...
Page 80 CONTACT INPUT 2 AUTO-BURNISH = ON 842751A1.CDR Figure 3–21: AUTO-BURNISH DIP SWITCHES The auto-burnish circuitry has an internal fuse for safety purposes. During regular maintenance, the auto-burnish functionality can be checked using an oscilloscope. NOTE 3-20 L30 Line Current Differential System GE Multilin...
Page 81: Transducer Inputs And Outputs
(5A, 5C, 5D, 5E, and 5F) and channel arrangements that may be ordered for the relay. Wherever a tilde “~” symbol appears, substitute with the slot position of the module. NOTE Figure 3–22: TRANSDUCER INPUT/OUTPUT MODULE WIRING GE Multilin L30 Line Current Differential System 3-21...
Page 82: Rs232 Faceplate Port
3.2.8 RS232 FACEPLATE PORT A 9-pin RS232C serial port is located on the L30 faceplate for programming with a personal computer. All that is required to use this interface is a personal computer running the EnerVista UR Setup software provided with the relay. Cabling for the RS232 port is shown in the following figure for both 9-pin and 25-pin connectors.
Page 83 10/100Base-T ― IRIG-B input 110 to 250 V DC 100 to 240 V AC – ― Power supply Co-axial cable GROUND IRIG-B output Co-axial cable 842836A1.CDR Figure 3–24: CPU MODULE COMMUNICATIONS WIRING GE Multilin L30 Line Current Differential System 3-23...
Page 84 To ensure maximum reliability, all equipment should have similar transient protection devices installed. Both ends of the RS485 circuit should also be terminated with an impedance as shown below. Figure 3–25: RS485 SERIAL CONNECTION 3-24 L30 Line Current Differential System GE Multilin...
Page 85: Irig-B
IRIG-B RG58/59 COAXIAL CABLE RECEIVER TIME CODE GENERATOR BNC (IN) (DC SHIFT OR AMPLITUDE MODULATED SIGNAL CAN BE USED) REPEATER BNC (OUT) TO OTHER DEVICES (DC-SHIFT ONLY) 827756A5.CDR Figure 3–26: IRIG-B CONNECTION GE Multilin L30 Line Current Differential System 3-25...
Page 86 Using the IRIG-B repeater function in conjunction with synchrophasors is not recommended, as the repeater adds a 40 μs delay to the IRIG-B signal. This results in a 1° error for each consecutive device in the string as reported in NOTE synchrophasors. 3-26 L30 Line Current Differential System GE Multilin...
Page 87: Pilot Channel Communications
RS422, 1 channel RS422, 2 channels, 2 clock inputs RS422, 2 channels All of the fiber modules use ST type connectors. For two-terminal applications, each L30 relay requires at least one com- munications channel. GE Multilin L30 Line Current Differential System...
Page 88: Fiber: Led And Eled Transmitters
2 Channels Figure 3–29: LASER FIBER MODULES When using a laser Interface, attenuators may be necessary to ensure that you do not exceed the maxi- mum optical input power to the receiver. WARNING 3-28 L30 Line Current Differential System GE Multilin...
Page 89: Interface
Remove the top cover by sliding it towards the rear and then lift it upwards. Set the timing selection switches (channel 1, channel 2) to the desired timing modes. Replace the top cover and the cover screw. GE Multilin L30 Line Current Differential System 3-29...
Page 90 For connection to a higher order system (UR- to-multiplexer, factory defaults), set to octet timing (S1 = ON) and set timing mode to loop timing (S5 = OFF and S6 = OFF). 3-30 L30 Line Current Differential System GE Multilin...
Page 91 G.703 line side of the interface while the other lies on the differential Manchester side of the interface. DMR = Differential Manchester Receiver DMX = Differential Manchester Transmitter G7X = G.703 Transmitter G7R = G.703 Receiver 842775A1.CDR Figure 3–34: G.703 DUAL LOOPBACK MODE GE Multilin L30 Line Current Differential System 3-31...
Page 92: Rs422 Interface
(data module 1), will connect to the clock inputs of the UR–RS422 interface in the usual fashion. In addition, the send timing outputs of data module 1 will also be paralleled to the terminal timing inputs of data module 2. 3-32 L30 Line Current Differential System GE Multilin...
Page 93 Figure 3–37: TIMING CONFIGURATION FOR RS422 TWO-CHANNEL, 3-TERMINAL APPLICATION Data module 1 provides timing to the L30 RS422 interface via the ST(A) and ST(B) outputs. Data module 1 also provides timing to data module 2 TT(A) and TT(B) inputs via the ST(A) and AT(B) outputs. The data module pin numbers have been omitted in the figure above since they may vary depending on the manufacturer.
Page 94: Rs422 And Fiber Interface
WARNING Shield Tx – G.703 Rx – channel 1 Tx + Rx + Surge Fiber channel 2 842778A1.CDR Figure 3–40: G.703 AND FIBER INTERFACE CONNECTION 3-34 L30 Line Current Differential System GE Multilin...
Page 95: Ieee C37.94 Interface
IEEE C37.94 standard, as shown below. The UR-series C37.94 communication module has six (6) switches that are used to set the clock configuration. The func- tions of these control switches is shown below. 842753A1.CDR GE Multilin L30 Line Current Differential System 3-35...
Page 96 Once the clips have cleared the raised edge of the chassis, engage the clips simultaneously. When the clips have locked into position, the module will be fully inserted. Figure 3–41: IEEE C37.94 TIMING SELECTION SWITCH SETTING 3-36 L30 Line Current Differential System GE Multilin...
Page 97: C37.94Sm Interface
For the internal timing mode, the system clock is generated internally. Therefore, the timing switch selection should be internal timing for relay 1 and loop timed for relay 2. There must be only one timing source configured. GE Multilin L30 Line Current Differential System 3-37...
Page 98 Once the clips have cleared the raised edge of the chassis, engage the clips simultaneously. When the clips have locked into position, the module will be fully inserted. Figure 3–42: C37.94SM TIMING SELECTION SWITCH SETTING 3-38 L30 Line Current Differential System GE Multilin...
Page 99: Managed Ethernet Switch Modules
The type 2S and 2T embedded managed switch modules are supported by UR-series relays containing type 9S CPU mod- ules with revisions 5.5x and higher. The modules communicate to the L30 through an internal Ethernet port (referred to as the UR port or port 7) and provide an additional six external Ethernet ports: two 10/100Base-T ports and four multimode ST 100Base-FX ports.
Page 100: Managed Switch Led Indicators
Switch has been shipped with a default IP address of 192.168.1.2 and a subnet mask of 255.255.255.0. Consult your net- work administrator to determine if the default IP address, subnet mask or default gateway needs to be modified. Do not connect to network while configuring the switch module. CAUTION 3-40 L30 Line Current Differential System GE Multilin...
Page 101 SAVING THE ETHERNET SWITCH SETTINGS TO A SETTINGS FILE The L30 allows the settings information for the Ethernet switch module to be saved locally as a settings file. This file con- tains the advanced configuration details for the switch not contained within the standard L30 settings file.
Page 102 Navigate to the folder containing the Ethernet switch settings file, select the file, then click Open. The settings file will be transferred to the Ethernet switch and the settings uploaded to the device. 3-42 L30 Line Current Differential System GE Multilin...
Page 103: Uploading L30 Switch Module Firmware
NOTE b) SELECTING THE PROPER SWITCH FIRMWARE VERSION The latest switch module firmware is available as a download from the GE Multilin web site. Use the following procedure to determine the version of firmware currently installed on your switch Log into the switch using the EnerVista web interface.
Page 104 Select the firmware file to be loaded on to the Switch, and select the Open option. The following window will pop up, indicating that the firmware file transfer is in progress. If the firmware load was successful, the following window will appear: Note 3-44 L30 Line Current Differential System GE Multilin...
Page 105: Ethernet Switch Self-Test Errors
No setting required; the L30 EQUIPMENT The L30 has not detected the The L30 failed to see the switch module will read the state of a general MISMATCH: Card XXX presence of the Ethernet on power-up, because switch won’t...
Page 106 3.4 MANAGED ETHERNET SWITCH MODULES 3 HARDWARE 3-46 L30 Line Current Differential System GE Multilin...
Page 107: Human Interfaces
To start using the EnerVista UR Setup software, a site definition and device definition must first be created. See the EnerV- ista UR Setup Help File or refer to the Connecting EnerVista UR Setup with the L30 section in Chapter 1 for details.
Page 108 Site List window will automatically be sent to the on-line communicating device. g) FIRMWARE UPGRADES The firmware of a L30 device can be upgraded, locally or remotely, via the EnerVista UR Setup software. The correspond- ing instructions are provided by the EnerVista UR Setup Help file under the topic “Upgrading Firmware”.
Page 109: Enervista Ur Setup Main Window
Device data view windows, with common tool bar. Settings file data view windows, with common tool bar. Workspace area with data view tabs. Status bar. 10. Quick action hot links. 842786A2.CDR Figure 4–1: ENERVISTA UR SETUP SOFTWARE MAIN WINDOW GE Multilin L30 Line Current Differential System...
Page 110: Extended Enervista Ur Setup Features
(settings file templates) and online devices (online settings templates). The func- tionality is identical for both purposes. The settings template feature requires that both the EnerVista UR Setup software and the L30 firmware are at ver- sions 5.40 or higher.
Page 111 The following procedure describes how to add password protection to a settings file template. Select a settings file from the offline window on the left of the EnerVista UR Setup main screen. Selecting the Template Mode > Password Protect Template option. GE Multilin L30 Line Current Differential System...
Page 112 Template Mode > View In Template Mode command. The template specifies that only the Pickup Curve Phase time overcurrent settings window without template applied. settings be available. 842858A1.CDR Figure 4–4: APPLYING TEMPLATES VIA THE VIEW IN TEMPLATE MODE COMMAND L30 Line Current Differential System GE Multilin...
Page 113 Select an installed device or settings file from the tree menu on the left of the EnerVista UR Setup main screen. Select the Template Mode > Remove Settings Template option. Enter the template password and click OK to continue. GE Multilin L30 Line Current Differential System...
Page 114: Securing And Locking Flexlogic™ Equations
Click on Save to save and apply changes to the settings template. Select the Template Mode > View In Template Mode option to view the template. Apply a password to the template then click OK to secure the FlexLogic™ equation. L30 Line Current Differential System GE Multilin...
Page 115 FlexLogic™ entries in a settings file have been secured, use the following procedure to lock the settings file to a specific serial number. Select the settings file in the offline window. Right-click on the file and select the Edit Settings File Properties item. GE Multilin L30 Line Current Differential System...
Page 116: Settings File Traceability
When a settings file is transfered to a L30 device, the date, time, and serial number of the L30 are sent back to EnerVista UR Setup and added to the settings file on the local PC. This infor- mation can be compared with the L30 actual values at any later date to determine if security has been compromised.
Page 117 4.2 EXTENDED ENERVISTA UR SETUP FEATURES The transfer date of a setting file written to a L30 is logged in the relay and can be viewed via EnerVista UR Setup or the front panel display. Likewise, the transfer date of a setting file saved to a local PC is logged in EnerVista UR Setup.
Page 118 ONLINE DEVICE TRACEABILITY INFORMATION The L30 serial number and file transfer date are available for an online device through the actual values. Select the Actual Values > Product Info > Model Information menu item within the EnerVista UR Setup online window as shown in the example below.
Page 119: Faceplate Interface
LED panel 2 LED panel 3 Display Front panel RS232 port Small user-programmable User-programmable Keypad (control) pushbuttons 1 to 7 pushbuttons 1 to 12 827801A7.CDR Figure 4–16: UR-SERIES STANDARD HORIZONTAL FACEPLATE PANELS GE Multilin L30 Line Current Differential System 4-13...
Page 120: Led Indicators
The status indicators in the first column are described below. • IN SERVICE: This LED indicates that control power is applied, all monitored inputs, outputs, and internal systems are OK, and that the device has been programmed. 4-14 L30 Line Current Differential System GE Multilin...
Page 121 Support for applying a customized label beside every LED is provided. Default labels are shipped in the label pack- age of every L30, together with custom templates. The default labels can be replaced by user-printed labels. User customization of LED operation is of maximum benefit in installations where languages other than English are used to communicate with operators.
Page 122 LEDs on these panels. USER-PROGRAMMABLE LEDS USER-PROGRAMMABLE LEDS 842782A1.CDR Figure 4–20: LED PANELS 2 AND 3 (INDEX TEMPLATE) DEFAULT LABELS FOR LED PANEL 2: The default labels are intended to represent: 4-16 L30 Line Current Differential System GE Multilin...
Page 123: Custom Labeling Of Leds
EnerVista UR Setup software is installed and operational. • The L30 settings have been saved to a settings file. • The L30 front panel label cutout sheet (GE Multilin part number 1006-0047) has been downloaded from http:// www.GEindustrial.com/multilin/support/ur and printed.
Page 124 Enter the text to appear next to each LED and above each user-programmable pushbuttons in the fields provided. Feed the L30 front panel label cutout sheet into a printer and press the Print button in the front panel report window.
Page 125 4.3 FACEPLATE INTERFACE Bend the tab at the center of the tool tail as shown below. The following procedure describes how to remove the LED labels from the L30 enhanced front panel and insert the custom labels. Use the knife to lift the LED label and slide the label tool underneath. Make sure the bent tabs are pointing away from the relay.
Page 126 Slide the new LED label inside the pocket until the text is properly aligned with the LEDs, as shown below. The following procedure describes how to remove the user-programmable pushbutton labels from the L30 enhanced front panel and insert the custom labels.
Page 127 Slide the label tool under the user-programmable pushbutton label until the tabs snap out as shown below. This will attach the label tool to the user-programmable pushbutton label. Remove the tool and attached user-programmable pushbutton label as shown below. GE Multilin L30 Line Current Differential System 4-21...
Page 128 The panel templates provide relative LED locations and located example text (x) edit boxes. The following procedure demonstrates how to install/uninstall the custom panel labeling. Remove the clear Lexan Front Cover (GE Multilin part number: 1501-0014). Push in...
Page 129: Display
4.3.6 BREAKER CONTROL a) INTRODUCTION The L30 can interface with associated circuit breakers. In many cases the application monitors the state of the breaker, which can be presented on faceplate LEDs, along with a breaker trouble indication. Breaker operations can be manually initiated from faceplate keypad or automatically initiated from a FlexLogic™...
Page 130: Menus
Each press of the MENU key advances through the following main heading pages: • Actual values. • Settings. • Commands. • Targets. • User displays (when enabled). 4-24 L30 Line Current Differential System GE Multilin...
Page 131 Display Properties. TIME: 1.0 s To view the remaining settings associated with the Display Properties subheader, DEFAULT MESSAGE repeatedly press the MESSAGE DOWN key. The last message appears as shown. INTENSITY: 25% GE Multilin L30 Line Current Differential System 4-25...
Page 132: Changing Settings
Text settings have data values which are fixed in length, but user-defined in character. They may be comprised of upper case letters, lower case letters, numerals, and a selection of special characters. 4-26 L30 Line Current Differential System GE Multilin...
Page 133 When the "NEW SETTING HAS BEEN STORED" message appears, the relay will be in "Programmed" state and the In Service LED will turn on. e) ENTERING INITIAL PASSWORDS The L30 supports password entry from a local or remote connection. GE Multilin L30 Line Current Differential System...
Page 134 In the event that an incorrect Command or Setting password has been entered via the faceplate interface three times within a three-minute time span, the FlexLogic™ operand will be set to “On” and the L30 will not allow LOCAL ACCESS DENIED Settings or Command access via the faceplate interface for the next ten minutes.
Page 135 FlexLogic™ operand will be set to “On” and REMOTE ACCESS DENIED the L30 will not allow Settings or Command access via the any external communications interface for the next ten minutes. FlexLogic™ operand will be set to “Off” after the expiration of the ten-minute timeout.
Page 136 4.3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4-30 L30 Line Current Differential System GE Multilin...
Page 137: Settings
DISPLAYS INSTALLATION See page 5-54. SETTINGS AC INPUTS See page 5-56. SYSTEM SETUP POWER SYSTEM See page 5-57. SIGNAL SOURCES See page 5-58. 87L POWER SYSTEM See page 5-61. BREAKERS See page 5-66. GE Multilin L30 Line Current Differential System...
Page 138 AUTORECLOSE See page 5-166. DIGITAL ELEMENTS See page 5-173. DIGITAL COUNTERS See page 5-176. MONITORING See page 5-178. ELEMENTS TRIP BUS See page 5-184. SETTINGS CONTACT INPUTS See page 5-186. INPUTS / OUTPUTS L30 Line Current Differential System GE Multilin...
Page 139 See page 5-206. TESTING FUNCTION: Disabled TEST MODE FORCING: See page 5-206. FORCE CONTACT See page 5-207. INPUTS FORCE CONTACT See page 5-208. OUTPUTS CHANNEL TESTS See page 5-209. See page 5-209. TEST VALUES GE Multilin L30 Line Current Differential System...
Page 140: Introduction To Elements
RESET DELAY setting: This setting is used to set a time-delay-on-dropout, or off-delay, for the duration between the Operate output state and the return to logic 0 after the input transits outside the defined pickup range. L30 Line Current Differential System GE Multilin...
Page 141: Introduction To Ac Sources
BACKGROUND The L30 may be used on systems with breaker-and-a-half or ring bus configurations. In these applications, each of the two three-phase sets of individual phase currents (one associated with each breaker) can be used as an input to a breaker fail- ure element.
Page 142 A summary of CT/VT module configurations is shown below. ITEM MAXIMUM NUMBER CT/VT Module CT Bank (3 phase channels, 1 ground channel) VT Bank (3 phase channels, 1 auxiliary channel) L30 Line Current Differential System GE Multilin...
Page 143 CTs on each of two breakers is required to measure the winding current flow. GE Multilin L30 Line Current Differential System...
Page 144: Product Setup
When entering a settings or command password via EnerVista or any serial interface, the user must enter the correspond- ing connection password. If the connection is to the back of the L30, the remote password must be used. If the connection is to the RS232 port of the faceplate, the local password must be used.
Page 145 If an entered password is lost (or forgotten), consult the factory with the corresponding ENCRYPTED PASSWORD If the setting and command passwords are identical, then this one password allows access to both com- mands and settings. NOTE GE Multilin L30 Line Current Differential System...
Page 146 Range: 2 to 5 in steps of 1 INVALID ATTEMPTS MESSAGE BEFORE LOCKOUT: 3 Range: 5 to 60 minutes in steps of 1 PASSWORD LOCKOUT MESSAGE DURATION: 5 min The following access supervision settings are available. 5-10 L30 Line Current Differential System GE Multilin...
Page 147 INVALID ATTEMPS BEFORE LOCKOUT The L30 provides a means to raise an alarm upon failed password entry. Should password verification fail while accessing a password-protected level of the relay (either settings or commands), the FlexLogic™ operand is UNAUTHORIZED ACCESS asserted.
Page 148 TIME: 30 min Range: 0.002 to 0.020 pu in steps of 0.001 CURRENT CUT-OFF MESSAGE LEVEL: 0.020 pu Range: 0.1 to 1.0 V secondary in steps of 0.1 VOLTAGE CUT-OFF MESSAGE LEVEL: 1.0 V 5-12 L30 Line Current Differential System GE Multilin...
Page 149 Some customers prefer very low currents to display as zero, while others prefer the current be displayed even when the value reflects noise rather than the actual signal. The L30 applies a cut- off value to the magnitudes and angles of the measured currents.
Page 150: Clear Relay Records
Selected records can be cleared from user-programmable conditions with FlexLogic™ operands. Assigning user-program- mable pushbuttons to clear specific records are typical applications for these commands. Since the L30 responds to rising edges of the configured FlexLogic™ operands, they must be asserted for at least 50 ms to take effect.
Page 151: Communications
0 ms The L30 is equipped with up to three independent serial communication ports. The faceplate RS232 port is intended for local use and is fixed at 19200 baud and no parity. The rear COM1 port type is selected when ordering: either an Ethernet or RS485 port.
Page 152 MODBUS SLAVE ADDRESS grammed. For the RS485 ports each L30 must have a unique address from 1 to 254. Address 0 is the broadcast address which all Modbus slave devices listen to. Addresses do not have to be sequential, but no two devices can have the same address or conflicts resulting in errors will occur.
Page 153 DEADBAND: 30000 Range: 0 to 100000000 in steps of 1 DNP OTHER DEFAULT MESSAGE DEADBAND: 30000 Range: 1 to 10080 min. in steps of 1 DNP TIME SYNC IIN MESSAGE PERIOD: 1440 min GE Multilin L30 Line Current Differential System 5-17...
Page 154 TIMEOUT: 120 s The L30 supports the Distributed Network Protocol (DNP) version 3.0. The L30 can be used as a DNP slave device con- nected to multiple DNP masters (usually an RTU or a SCADA master station). Since the L30 maintains two sets of DNP data change buffers and connection information, two DNP masters can actively communicate with the L30 at one time.
Page 155 DNP analog input points that are voltages will be returned with values 1000 times smaller (for example, a value of 72000 V on the L30 will be returned as 72). These settings are useful when analog input values must be adjusted to fit within cer- tain ranges in DNP masters.
Page 156 5.2 PRODUCT SETUP 5 SETTINGS master can operate a single point for both trip and close, or raise and lower, operations. The L30 can be configured to sup- port paired control points, with each paired control point operating two virtual inputs. The DNP NUMBER OF PAIRED CONTROL setting allows configuration of from 0 to 32 binary output paired controls.
Page 157 The L30 supports the Manufacturing Message Specification (MMS) protocol as specified by IEC 61850. MMS is supported over two protocol stacks: TCP/IP over ethernet and TP4/CLNP (OSI) over ethernet. The L30 operates as an IEC 61850 server. The Remote inputs and outputs section in this chapter describe the peer-to-peer GSSE/GOOSE message scheme.
Page 158 IEC 61850 GSSE application ID name string sent as part of each GSSE message. This GSSE ID string identifies the GSSE message to the receiving device. In L30 releases previous to 5.0x, this name string was repre- sented by the setting.
Page 159 DESTINATION MAC address; the least significant bit of the first byte must be set. In L30 releases previous to 5.0x, the destination Ethernet MAC address was determined automatically by taking the sending MAC address (that is, the unique, local MAC address of the L30) and setting the multicast bit.
Page 160 The L30 has the ability of detecting if a data item in one of the GOOSE datasets is erroneously oscillating. This can be caused by events such as errors in logic programming, inputs improperly being asserted and de-asserted, or failed station components.
Page 161 GGIO1 INDICATION 1 a contact input, virtual input, a protection element status, etc.). The L30 must be rebooted (control power removed and re-applied) before these settings take effect. The following procedure illustrates the reception configuration. Configure the reception dataset by making the following changes in the...
Page 162 DNA and UserSt bit pairs that are included in GSSE messages. To set up a L30 to receive a configurable GOOSE dataset that contains two IEC 61850 single point status indications, the following dataset items can be selected (for example, for configurable GOOSE dataset 1): “GGIO3.ST.Ind1.stVal” and “GGIO3.ST.Ind2.stVal”.
Page 163 CPU resources. When server scanning is disabled, there will be not updated to the IEC 61850 logical node sta- tus values in the L30. Clients will still be able to connect to the server (L30 relay), but most data values will not be updated.
Page 164 The GGIO2 control configuration settings are used to set the control model for each input. The available choices are “0” (status only), “1” (direct control), and “2” (SBO with normal security). The GGIO2 control points are used to control the L30 virtual inputs.
Page 165 GGIO4. When this value is NUMBER OF ANALOG POINTS changed, the L30 must be rebooted in order to allow the GGIO4 logical node to be re-instantiated and contain the newly configured number of analog points.
Page 166 GGIO1 (binary status values). The settings allow the selection of FlexInteger™ values for each GGIO5 integer value point. It is intended that clients use GGIO5 to access generic integer values from the L30. Additional settings are provided to allow the selection of the number of integer values available in GGIO5 (1 to 16), and to assign FlexInteger™ values to the GGIO5 integer inputs.
Page 167 Since GSSE/GOOSE messages are multicast Ethernet by specification, they will not usually be forwarded by net- work routers. However, GOOSE messages may be fowarded by routers if the router has been configured for VLAN NOTE functionality. GE Multilin L30 Line Current Differential System 5-31...
Page 168 NUMBER: The Trivial File Transfer Protocol (TFTP) can be used to transfer files from the L30 over a network. The L30 operates as a TFTP server. TFTP client software is available from various sources, including Microsoft Windows NT. The dir.txt file obtained from the L30 contains a list and description of all available files (event records, oscillography, etc.).
Page 169 L30 clock is closely synchronized with the SNTP/NTP server. It may take up to two minutes for the L30 to signal an SNTP self-test error if the server is offline.
Page 170: Modbus User Map
MESSAGE Disabled These settings appear only if the L30 is ordered with an Ethernet switch module (type 2S or 2T). The IP address and Modbus TCP port number for the Ethernet switch module are specified in this menu. These settings are used in advanced network configurations.
Page 171: Real Time Clock
SNTP, the offset is used to determine the local time for the L30 clock, since SNTP provides UTC time. The daylight savings time (DST) settings can be used to allow the L30 clock can follow the DST rules of the local time zone.
Page 172: Fault Reports
MESSAGE Z0 ANGLE: 75° The L30 relay supports one fault report and an associated fault locator. The signal source and trigger condition, as well as the characteristics of the line or feeder, are entered in this menu. The fault report stores data, in non-volatile memory, pertinent to an event when triggered. The captured data contained in the FaultReport.txt file includes:...
Page 173 It should be kept in mind that grounding points in vicinity of the installation impact the system zero-sequence impedance (grounded loads, reactors, zig-zag transformers, shunt capacitor banks, etc.). GE Multilin L30 Line Current Differential System 5-37...
Page 174: Oscillography
Reducing the sampling rate allows longer records to be stored. This setting has no effect on the internal sampling rate of the relay which is always 64 samples per cycle; that is, it has no effect on the fundamental calculations of the device. 5-38 L30 Line Current Differential System GE Multilin...
Page 175 IB signal on terminal 2 of the CT/VT module in slot F. If there are no CT/VT modules and analog input modules, no analog traces will appear in the file; only the digital traces will appear. GE Multilin L30 Line Current Differential System 5-39...
Page 176: Data Logger
DATA LOGGER MODE: This setting configures the mode in which the data logger will operate. When set to “Continu- ous”, the data logger will actively record any configured channels at the rate as defined by the . The DATA LOGGER RATE 5-40 L30 Line Current Differential System GE Multilin...
Page 177: User-Programmable Leds
All 62 LEDs on the relay are illuminated. This is a quick test to verify if any of the LEDs is “burned”. This stage lasts as long as the control input is on, up to a maximum of 1 minute. After 1 minute, the test will end. GE Multilin L30 Line Current Differential System 5-41...
Page 178 Configure user-programmable pushbutton 1 by making the following entries in the SETTINGS menu: PRODUCT SETUP USER-PROGRAMMABLE PUSHBUTTONS USER PUSHBUTTON 1 “Self-reset” PUSHBUTTON 1 FUNCTION: “0.10 s” PUSHBTN 1 DROP-OUT TIME: 5-42 L30 Line Current Differential System GE Multilin...
Page 179 “Latched”, the LED, once lit, remains so until reset by the faceplate RESET button, from a remote device via a com- munications channel, or from any programmed operand, even if the LED operand state de-asserts. GE Multilin L30 Line Current Differential System 5-43...
Page 180: User-Programmable Self-Tests
Refer to the Relay self-tests section in chapter 7 for additional information on major and minor self-test alarms. To enable the Ethernet switch failure function, ensure that the is “Enabled” in this ETHERNET SWITCH FAIL FUNCTION menu. NOTE 5-44 L30 Line Current Differential System GE Multilin...
Page 181: Control Pushbuttons
The location of the control pushbuttons are shown in the following figures. Control pushbuttons 842813A1.CDR Figure 5–4: CONTROL PUSHBUTTONS (ENHANCED FACEPLATE) An additional four control pushbuttons are included on the standard faceplate when the L30 is ordered with the twelve user- programmable pushbutton option. STATUS EVENT CAUSE...
Page 182: User-Programmable Pushbuttons
PUSHBTN 1 DROP-OUT MESSAGE TIME: 0.00 s Range: FlexLogic™ operand PUSHBTN 1 LED CTL: MESSAGE Range: Disabled, Normal, High Priority PUSHBTN 1 MESSAGE: MESSAGE Disabled Range: Disabled, Enabled PUSHBUTTON 1 MESSAGE EVENTS: Disabled 5-46 L30 Line Current Differential System GE Multilin...
Page 183 The pushbutton is reset (deactivated) in latched mode by asserting the operand assigned to the set- PUSHBTN 1 RESET ting or by directly pressing the associated active front panel pushbutton. GE Multilin L30 Line Current Differential System 5-47...
Page 184 This timer is reset upon release of the pushbutton. Note that any pushbutton operation will require the pushbutton to be pressed a minimum of 50 ms. This minimum time is required prior to activating the pushbutton hold timer. 5-48 L30 Line Current Differential System GE Multilin...
Page 185 “Normal” if the setting is “High Priority” or “Normal”. PUSHBTN 1 MESSAGE • PUSHBUTTON 1 EVENTS: If this setting is enabled, each pushbutton state change will be logged as an event into event recorder. GE Multilin L30 Line Current Differential System 5-49...
Page 186 Off = 0 SETTING SETTING Autoreset Delay Autoreset Function = Enabled = Disabled SETTING Drop-Out Timer TIMER FLEXLOGIC OPERAND 200 ms PUSHBUTTON 1 ON 842021A3.CDR Figure 5–9: USER-PROGRAMMABLE PUSHBUTTON LOGIC (Sheet 1 of 2) 5-50 L30 Line Current Differential System GE Multilin...
Page 187 16 states may be read out in a single Modbus register. The state bits can be configured so that all of the states which are of interest to the user are available in a minimum number of Modbus registers. GE Multilin L30 Line Current Differential System 5-51...
Page 188: User-Definable Displays
INVOKE AND SCROLL play, not at the first user-defined display. The pulses must last for at least 250 ms to take effect. INVOKE AND SCROLL 5-52 L30 Line Current Differential System GE Multilin...
Page 189 4 seconds. While viewing a user display, press the ENTER key and then select the ‘Yes” option to remove the display from the user display list. Use the MENU key again to exit the user displays menu. GE Multilin L30 Line Current Differential System 5-53...
Page 190: Installation
This name will appear on generated reports. This name RELAY NAME is also used to identify specific devices which are engaged in automatically sending/receiving data over the Ethernet com- munications channel using the IEC 61850 protocol. 5-54 L30 Line Current Differential System GE Multilin...
Page 191: Remote Resources Configuration
Bricks. Remote resources settings configure the point-to-point connection between specific fiber optic ports on the L30 process card and specific Brick. The relay is then configured to measure spe- cific currents, voltages and contact inputs from those Bricks, and to control specific outputs.
Page 192: System Setup
1000:1 CT before summation. If a protection element is set up to act on SRC 1 currents, then a pickup level of 1 pu will operate on 1000 A primary. The same rule applies for current sums from CTs with different secondary taps (5 A and 1 A). 5-56 L30 Line Current Differential System GE Multilin...
Page 193: Power System
ABC or ACB. CT and VT inputs on the relay, labeled as A, B, and C, must be con- nected to system phases A, B, and C for correct operation. GE Multilin L30 Line Current Differential System 5-57...
Page 194: Signal Sources
FREQUENCY TRACKING cial variable-frequency applications. NOTE The frequency tracking feature will function only when the L30 is in the “Programmed” mode. If the L30 is “Not Pro- grammed”, then metering values will be available but may exhibit significant errors. NOTE The nominal system frequency should be selected as 50 Hz or 60 Hz only.
Page 195 An example of the use of sources is shown in the diagram below. A relay could have the following hardware configuration: INCREASING SLOT POSITION LETTER --> CT/VT MODULE 1 CT/VT MODULE 2 CT/VT MODULE 3 not applicable GE Multilin L30 Line Current Differential System 5-59...
Page 196 CT/VT inputs that are used to provide the data. DSP Bank Source 1 Source 2 Amps Amps Source 3 51BF-1 51BF-2 Volts Amps Amps Volts Source 4 UR Relay Figure 5–13: EXAMPLE USE OF SOURCES 5-60 L30 Line Current Differential System GE Multilin...
Page 197: Power System
CHANGE: 1.5 ms Any changes to the L30 power system settings will change the protection system configuration. As such, the 87L protection at all L30 protection system terminals must be temporarily disabled to allow the relays NOTE to acknowledge the new settings.
Page 198 The effect of charging current compensation is viewed in the METERING NOTE actual values menu. This effect is very dependent on CT and VT accuracy. 87L DIFFERENTIAL CURRENT 5-62 L30 Line Current Differential System GE Multilin...
Page 199 LOCAL (TERMINAL 1 and TERMINAL 2) ID NUMBER: In installations using multiplexers or modems for communica- tion, it is desirable to ensure the data used by the relays protecting a given line comes from the correct relays. The L30 performs this check by reading the ID number contained in the messages sent by transmitting relays and comparing this ID to the programmed correct ID numbers by the receiving relays.
Page 200 • BLOCK GPS TIME REF: This setting signals to the L30 that the time reference is not valid. The time reference may be not accurate due to problems with the GPS receiver. The user must to be aware of the case when a GPS satellite receiver loses its satellite signal and reverts to its own calibrated crystal oscillator.
Page 201 ACTUAL VALUE Ch2 Asymmetry ACTUAL VALUE FLEXLOGIC OPERAND Ch2 T-Time New - Ch2 Round Trip Time 87L DIFF 2 TIME CHNG Ch2 T-Time Old > CHANGE 831025A4.CDR Figure 5–15: CHANNEL ASYMMETRY COMPENSATION LOGIC GE Multilin L30 Line Current Differential System 5-65...
Page 202: Breakers
Range: 0.000 to 1 000 000.000 s in steps of 0.001 MANUAL CLOSE RECAL1 MESSAGE TIME: 0.000 s Range: FlexLogic™ operand BREAKER 1 OUT OF SV: MESSAGE Range: Disabled, Enabled BREAKER 1 EVENTS: MESSAGE Disabled 5-66 L30 Line Current Differential System GE Multilin...
Page 203 1. The number of breaker control elements is dependent on the number of CT/VT modules specified with the L30. The follow- ing settings are available for each breaker control element.
Page 204 Off = 0 827061AS.CDR Figure 5–16: DUAL BREAKER CONTROL SCHEME LOGIC (Sheet 1 of 2) IEC 61850 functionality is permitted when the L30 is in “Programmed” mode and not in the local control mode. NOTE 5-68 L30 Line Current Differential System...
Page 205 BREAKER 1 ANY P OPEN BREAKER 1 1P OPEN BREAKER 1 OOS SETTING BREAKER 1 OUT OF SV = Off 842025A1.CDR Figure 5–17: DUAL BREAKER CONTROL SCHEME LOGIC (Sheet 2 of 2) GE Multilin L30 Line Current Differential System 5-69...
Page 206: Disconnect Switches
For greater security in determination of the switch pole position, both the 52/a and 52/b auxiliary contacts are used with reporting of the discrepancy between them. The number of available disconnect switches depends on the number of the CT/VT modules ordered with the L30. •...
Page 207 This allows for non-simultaneous operation of the poles. IEC 61850 functionality is permitted when the L30 is in “Programmed” mode and not in the local control mode. NOTE GE Multilin...
Page 208 SWITCH Φ BAD ST SWITCH 1 C Φ CLSD SETTING SWITCH 1 C Φ OPEN SWITCH 1 ΦC OPENED SWITCH 1 C Φ INTERM = Off 842026A3.CDR Figure 5–18: DISCONNECT SWITCH SCHEME LOGIC 5-72 L30 Line Current Differential System GE Multilin...
Page 209: Flexcurves
1; that is, 0.98 pu and 1.03 pu. It is recommended to set the two times to a similar value; otherwise, the lin- ear approximation may result in undesired behavior for the operating quantity that is close to 1.00 pu. GE Multilin L30 Line Current Differential System 5-73...
Page 210 The multiplier and adder settings only affect the curve portion of the characteristic and not the MRT and HCT set- tings. The HCT settings override the MRT settings for multiples of pickup greater than the HCT ratio. NOTE 5-74 L30 Line Current Differential System GE Multilin...
Page 211 EnerVista UR Setup software generates an error message and discards the proposed changes. NOTE e) STANDARD RECLOSER CURVES The standard recloser curves available for the L30 are displayed in the following graphs. GE Multilin L30 Line Current Differential System...
Page 212 842723A1.CDR Figure 5–22: RECLOSER CURVES GE101 TO GE106 GE142 GE138 GE120 GE113 0.05 7 8 9 10 12 CURRENT (multiple of pickup) 842725A1.CDR Figure 5–23: RECLOSER CURVES GE113, GE120, GE138 AND GE142 5-76 L30 Line Current Differential System GE Multilin...
Page 213 Figure 5–24: RECLOSER CURVES GE134, GE137, GE140, GE151 AND GE201 GE152 GE141 GE131 GE200 7 8 9 10 12 CURRENT (multiple of pickup) 842728A1.CDR Figure 5–25: RECLOSER CURVES GE131, GE141, GE152, AND GE200 GE Multilin L30 Line Current Differential System 5-77...
Page 214 Figure 5–26: RECLOSER CURVES GE133, GE161, GE162, GE163, GE164 AND GE165 GE132 GE139 GE136 GE116 0.05 GE117 GE118 0.02 0.01 7 8 9 10 12 CURRENT (multiple of pickup) 842726A1.CDR Figure 5–27: RECLOSER CURVES GE116, GE117, GE118, GE132, GE136, AND GE139 5-78 L30 Line Current Differential System GE Multilin...
Page 215 Figure 5–28: RECLOSER CURVES GE107, GE111, GE112, GE114, GE115, GE121, AND GE122 GE202 GE135 GE119 7 8 9 10 12 CURRENT (multiple of pickup) 842727A1.CDR Figure 5–29: RECLOSER CURVES GE119, GE135, AND GE202 GE Multilin L30 Line Current Differential System 5-79...
Page 216: Phasor Measurement Unit
See page 5-81. UNIT 1 CONFIGURATION PMU 1 See page 5-82. MESSAGE CALIBRATION PMU 1 See page 5-83. MESSAGE COMMUNICATION PMU 1 See page 5-85. MESSAGE TRIGGERING PMU 1 See page 5-92. MESSAGE RECORDING 5-80 L30 Line Current Differential System GE Multilin...
Page 217 • PMU 1 SIGNAL SOURCE: This setting specifies one of the available L30 signal sources for processing in the PMU. Note that any combination of voltages and currents can be configured as a source. The current channels could be con- figured as sums of physically connected currents.
Page 218 When receiving synchrophasor date at multiple locations, with possibly different reference nodes, it may be more beneficial to allow the central locations to perform the compensation of sequence voltages. This setting applies to PMU data only. The L30 calculates symmetrical voltages independently for protection and control purposes without applying this correction.
Page 219 PMU1 PORT D-CH-16 MESSAGE NORMAL STATE: Off This section configures the phasor measurement unit (PMU) communication functions. • PMU1 COMM PORT: This setting specifies the communication port for transmission of the PMU data. GE Multilin L30 Line Current Differential System 5-83...
Page 220 PMU1 PORT D-CH-1 NORMAL STATE to PMU1 PORT D-CH-16 NORMAL STATE: These settings allow for specify- ing a normal state for each digital channel. These states are transmitted in configuration frames to the data concentra- tor. 5-84 L30 Line Current Differential System GE Multilin...
Page 221 Range: FlexLogic™ operands PMU 1 USER PMU1 USER TRIGGER: TRIGGER The user trigger allows customized triggering logic to be constructed from FlexLogic™. The entire triggering logic is refreshed once every two power system cycles. GE Multilin L30 Line Current Differential System 5-85...
Page 222 L30 standards. This element requires the frequency is above the minimum measurable value. If the frequency is below this value, such as when the circuit is de-energized, the trigger will drop out.
Page 223 PMU 1 VOLT TRIGGER DPO TIME: This setting could be used to extend the trigger after the situation returned to nor- mal. This setting is of particular importance when using the recorder in the forced mode (recording as long as the trig- gering condition is asserted). GE Multilin L30 Line Current Differential System 5-87...
Page 224 PMU 1 CURR TRIGGER DPO TIME: This setting could be used to extend the trigger after the situation returned to nor- mal. This setting is of particular importance when using the recorder in the forced mode (recording as long as the trig- gering condition is asserted). 5-88 L30 Line Current Differential System GE Multilin...
Page 225 For single-phase power, 1 pu is a product of 1 pu voltage and 1 pu current, or the product of nominal second- ary voltage, the VT ratio and the nominal primary current. For the three-phase power, 1 pu is three times that for a sin- gle-phase power. The comparator applies a 3% hysteresis. GE Multilin L30 Line Current Differential System 5-89...
Page 226 S > APPARENT PICKUP APPARENT POWER, SB S > APPARENT PICKUP APPARENT POWER, SC S > APPARENT PICKUP 3P APPARENT POWER, S S > 3*(APPARENT PICKUP) 847003A1.CDR Figure 5–34: POWER TRIGGER SCHEME LOGIC 5-90 L30 Line Current Differential System GE Multilin...
Page 227 PMU 1 df/dt TRIGGER DPO TIME: PMU 1 SIGNAL FLEXLOGIC OPERAND SOURCE: df/dt > RAISE PMU 1 ROCOF TRIGGER ROCOF, df/dt –df/dt > FALL 847000A1.CDR Figure 5–35: RATE OF CHANGE OF FREQUENCY TRIGGER SCHEME LOGIC GE Multilin L30 Line Current Differential System 5-91...
Page 228 Each logical phasor measurement unit (PMU) is associated with a recorder. The triggering condition is programmed via the menu. The recorder works with polar values using resolution as in the PMU actual values. PMU 1 TRIGGERING 5-92 L30 Line Current Differential System GE Multilin...
Page 229 Record Record Record Record Free Other logical PMUs memory Record Record Record Record Record Other logical PMUs No further recording after all allocated memory is used 847706A1.CDR Figure 5–38: “PROTECTED” MODE GE Multilin L30 Line Current Differential System 5-93...
Page 230 PMU 1 REC D-CH-1 NM to PMU 1 REC D-CH-16 NM: This setting allows custom naming of the digital channels. Six- teen-character ASCII strings are allowed as in the CHNAM field of the configuration frame. 5-94 L30 Line Current Differential System GE Multilin...
Page 231 NETWORK UDP PORT 1: This setting selects the first UDP port that will be used for network reporting. • NETWORK UDP PORT 2: This setting selects the second UDP port that will be used for network reporting. GE Multilin L30 Line Current Differential System 5-95...
Page 232: Flexlogic
Figure 5–39: UR ARCHITECTURE OVERVIEW The states of all digital signals used in the L30 are represented by flags (or FlexLogic™ operands, which are described later in this section). A digital “1” is represented by a 'set' flag. Any external contact change-of-state can be used to block an element from operating, as an input to a control feature in a FlexLogic™...
Page 233 Some types of operands are present in the relay in multiple instances; e.g. contact and remote inputs. These types of oper- ands are grouped together (for presentation purposes only) on the faceplate display. The characteristics of the different types of operands are listed in the table below. Table 5–7: L30 FLEXLOGIC™ OPERAND TYPES OPERAND TYPE STATE...
Page 234 Exceeded maximum CRC error threshold on channel 2 87L DIFF CH1 ID FAIL The ID check for a peer L30 on channel 1 has failed 87L DIFF CH2 ID FAIL The ID check for a peer L30 on channel 2 has failed...
Page 235 5 SETTINGS 5.5 FLEXLOGIC™ Table 5–8: L30 FLEXLOGIC™ OPERANDS (Sheet 2 of 7) OPERAND TYPE OPERAND SYNTAX OPERAND DESCRIPTION ELEMENT: BREAKER 1 OFF CMD Breaker 1 open command initiated Breaker control BREAKER 1 ON CMD Breaker 1 close command initiated BREAKER 1 ΦA BAD ST...
Page 236 5.5 FLEXLOGIC™ 5 SETTINGS Table 5–8: L30 FLEXLOGIC™ OPERANDS (Sheet 3 of 7) OPERAND TYPE OPERAND SYNTAX OPERAND DESCRIPTION ELEMENT: NEG SEQ TOC1 PKP Negative-sequence time overcurrent 1 has picked up Negative-sequence NEG SEQ TOC1 OP Negative-sequence time overcurrent 1 has operated...
Page 237 5 SETTINGS 5.5 FLEXLOGIC™ Table 5–8: L30 FLEXLOGIC™ OPERANDS (Sheet 4 of 7) OPERAND TYPE OPERAND SYNTAX OPERAND DESCRIPTION ELEMENT: PMU 1 CURR TRIGGER Overcurrent trigger of phasor measurement unit 1 has operated Synchrophasor PMU 1 FREQ TRIGGER Abnormal frequency trigger of phasor measurement unit 1 has operated...
Page 238 5.5 FLEXLOGIC™ 5 SETTINGS Table 5–8: L30 FLEXLOGIC™ OPERANDS (Sheet 5 of 7) OPERAND TYPE OPERAND SYNTAX OPERAND DESCRIPTION ELEMENT: SYNC 1 DEAD S OP Synchrocheck 1 dead source has operated Synchrocheck SYNC 1 DEAD S DPO Synchrocheck 1 dead source has dropped out...
Page 239 5 SETTINGS 5.5 FLEXLOGIC™ Table 5–8: L30 FLEXLOGIC™ OPERANDS (Sheet 6 of 7) OPERAND TYPE OPERAND SYNTAX OPERAND DESCRIPTION LED INDICATORS: LED IN SERVICE Asserted when the front panel IN SERVICE LED is on. Fixed front panel LED TROUBLE Asserted when the front panel TROUBLE LED is on.
Page 240 5.5 FLEXLOGIC™ 5 SETTINGS Table 5–8: L30 FLEXLOGIC™ OPERANDS (Sheet 7 of 7) OPERAND TYPE OPERAND SYNTAX OPERAND DESCRIPTION USER- PUSHBUTTON 1 ON Pushbutton number 1 is in the “On” position PROGRAMMABLE PUSHBUTTON 1 OFF Pushbutton number 1 is in the “Off” position...
Page 241: Flexlogic™ Rules
If it is necessary to re-initialize FlexLogic™ during testing, for example, it is suggested to power the unit down and then back up. GE Multilin L30 Line Current Differential System 5-105...
Page 242: Flexlogic™ Example
DIGITAL ELEMENT 1 State=Pickup (200 ms) Timer 1 DIGITAL ELEMENT 2 State=Operated Time Delay on Pickup (800 ms) CONTACT INPUT H1c State=Closed VIRTUAL OUTPUT 3 827026A2.VSD Figure 5–41: LOGIC EXAMPLE WITH VIRTUAL OUTPUTS 5-106 L30 Line Current Differential System GE Multilin...
Page 243 Following the procedure outlined, start with parameter 99, as follows: 99: The final output of the equation is virtual output 3, which is created by the operator "= Virt Op n". This parameter is therefore "= Virt Op 3." GE Multilin L30 Line Current Differential System 5-107...
Page 244 87: The input just below the upper input to OR #1 is operand “Virt Op 2 On". 86: The upper input to OR #1 is operand “Virt Op 1 On". 85: The last parameter is used to set the latch, and is operand “Virt Op 4 On". 5-108 L30 Line Current Differential System GE Multilin...
Page 245 In the following equation, virtual output 3 is used as an input to both latch 1 and timer 1 as arranged in the order shown below: DIG ELEM 2 OP Cont Ip H1c On AND(2) GE Multilin L30 Line Current Differential System 5-109...
Page 246: Flexlogic Equation Editor
TIMER 1 TYPE: This setting is used to select the time measuring unit. • TIMER 1 PICKUP DELAY: Sets the time delay to pickup. If a pickup delay is not required, set this function to "0". 5-110 L30 Line Current Differential System GE Multilin...
Page 247: Flexelements
The element can be programmed to respond either to a signal level or to a rate-of-change (delta) over a pre-defined period of time. The output operand is asserted when the operating signal is higher than a threshold or lower than a threshold as per user's choice. GE Multilin L30 Line Current Differential System 5-111...
Page 248 The FLEXELEMENT 1 DIRECTION following figure explains the application of the FLEXELEMENT 1 DIRECTION FLEXELEMENT 1 PICKUP FLEXELEMENT 1 HYS- settings. TERESIS 5-112 L30 Line Current Differential System GE Multilin...
Page 249 DIRECTION = Under; FLEXELEMENT INPUT MODE = Signed; FlexElement 1 OpSig FLEXELEMENT 1 PKP FLEXELEMENT DIRECTION = Under; FLEXELEMENT INPUT MODE = Absolute; FlexElement 1 OpSig 842706A2.CDR Figure 5–49: FLEXELEMENT™ INPUT MODE SETTING GE Multilin L30 Line Current Differential System 5-113...
Page 250 “Delta”. FLEXELEMENT 1 COMP MODE This setting specifies the pickup delay of the element. The setting FLEXELEMENT 1 PKP DELAY FLEXELEMENT 1 RST DELAY specifies the reset delay of the element. 5-114 L30 Line Current Differential System GE Multilin...
Page 251: Non-Volatile Latches
Off=0 LATCH 1 ON Dominant LATCH 1 OFF SETTING Previous Previous State State LATCH 1 SET: Off=0 RESET 842005A1.CDR Figure 5–50: NON-VOLATILE LATCH OPERATION TABLE (N = 1 to 16) AND LOGIC GE Multilin L30 Line Current Differential System 5-115...
Page 252: Grouped Elements
(see the Control elements section for additional details). 5.6.3 LINE DIFFERENTIAL ELEMENTS a) MAIN MENU PATH: SETTINGS GROUPED ELEMENTS SETTING GROUP 1(6) LINE DIFFERENTIAL ELEMENTS LINE DIFFERENTIAL CURRENT See page 5-117. ELEMENTS DIFFERENTIAL STUB BUS See page 5-120. MESSAGE 5-116 L30 Line Current Differential System GE Multilin...
Page 253 CURRENT DIFF BLOCK: This setting selects a FlexLogic™ operand to block the operation of the current differential element. • CURRENT DIFF PICKUP: This setting is used to select current differential pickup value. GE Multilin L30 Line Current Differential System 5-117...
Page 254 CURRENT DIFF DTT: This setting enables and disables the sending of a DTT by the current differential element on per single-phase basis to remote relays. To allow the L30 to restart from master-master to master-slave mode (very important on three-terminal applications), must be set to “Enabled”.
Page 255 5 SETTINGS 5.6 GROUPED ELEMENTS Figure 5–51: CURRENT DIFFERENTIAL SCHEME LOGIC GE Multilin L30 Line Current Differential System 5-119...
Page 256 The assigned current element should be mapped to appropriate output contact(s) to trip the stub bus breakers. It should be blocked unless disconnect is open. To prevent 87L tripping from remote L30 relays still protecting the line, the auxiliary contact of line disconnect switch (logic “1” when line switch is open) should be assigned to block the local 87L function by using the setting.
Page 257: Phase Current
GROUPED ELEMENTS SETTING GROUP 1(6) PHASE CURRENT PHASE CURRENT PHASE TOC1 See page 5-127. PHASE TOC2 MESSAGE See page 5-127. PHASE IOC1 See page 5-129. MESSAGE PHASE IOC2 See page 5-129. MESSAGE GE Multilin L30 Line Current Differential System 5-121...
Page 258 5 SETTINGS b) INVERSE TIME OVERCURRENT CHARACTERISTICS The inverse time overcurrent curves used by the time overcurrent elements are the IEEE, IEC, GE Type IAC, and I t stan- dard curve shapes. This allows for simplified coordination with downstream devices.
Page 259 4.827 38.634 22.819 14.593 11.675 10.130 9.153 8.470 7.960 7.562 7.241 51.512 30.426 19.458 15.567 13.507 12.204 11.294 10.614 10.083 9.654 10.0 64.390 38.032 24.322 19.458 16.883 15.255 14.117 13.267 12.604 12.068 GE Multilin L30 Line Current Differential System 5-123...
Page 260 1.835 1.067 0.668 0.526 0.451 0.404 0.371 0.346 0.327 0.311 0.80 2.446 1.423 0.890 0.702 0.602 0.538 0.494 0.461 0.435 0.415 1.00 3.058 1.778 1.113 0.877 0.752 0.673 0.618 0.576 0.544 0.518 5-124 L30 Line Current Differential System GE Multilin...
Page 261 = characteristic constant, and T = reset time in seconds (assuming energy capacity is 100% RESET is “Timed”) RESET Table 5–17: GE TYPE IAC INVERSE TIME CURVE CONSTANTS IAC CURVE SHAPE IAC Extreme Inverse 0.0040 0.6379 0.6200 1.7872 0.2461...
Page 262 = Reset Time in seconds (assuming energy capacity is 100% and RESET: Timed) RESET RECLOSER CURVES: The L30 uses the FlexCurve™ feature to facilitate programming of 41 recloser curves. Please refer to the FlexCurve™ sec- tion in this chapter for additional details. 5-126...
Page 263 ‘Mvr’ times the setting. If the voltage restraint feature PHASE TOC1 PICKUP is disabled, the pickup level always remains at the setting value. GE Multilin L30 Line Current Differential System 5-127...
Page 264 PHASE TOC1 C DPO Multiplier-Phase C PHASE TOC1 C OP SETTING PHASE TOC1 PKP PHASE TOC1 VOLT RESTRAINT: PHASE TOC1 OP Enabled PHASE TOC1 DPO 827072A4.CDR Figure 5–54: PHASE TIME OVERCURRENT 1 SCHEME LOGIC 5-128 L30 Line Current Differential System GE Multilin...
Page 265 The phase instantaneous overcurrent element may be used as an instantaneous element with no intentional delay or as a definite time element. The input current is the fundamental phasor magnitude. The phase instantaneous overcurrent timing curves are shown below for form-A contacts in a 60 Hz system. GE Multilin L30 Line Current Differential System 5-129...
Page 266 PHASE IOC1 PKP ETT NG PHASE IOC1 OP PHASE IOC1 BLOCK-B: PHASE IOC1 DPO Off = 0 ETT NG 827033A6.VSD PHASE IOC1 BLOCK-C: Off = 0 Figure 5–56: PHASE INSTANTANEOUS OVERCURRENT 1 SCHEME LOGIC 5-130 L30 Line Current Differential System GE Multilin...
Page 267: Neutral Current
The neutral current input value is a quantity calculated as 3Io from the phase currents and may be programmed as fundamental phasor magnitude or total waveform RMS magnitude as required by the application. GE Multilin L30 Line Current Differential System 5-131...
Page 268 The positive-sequence restraint allows for more sensitive settings by counterbalancing spurious zero-sequence currents resulting from: • System unbalances under heavy load conditions • Transformation errors of current transformers (CTs) during double-line and three-phase faults. • Switch-off transients during double-line and three-phase faults. 5-132 L30 Line Current Differential System GE Multilin...
Page 269: Ground Current
GROUPED ELEMENTS SETTING GROUP 1(6) GROUND CURRENT GROUND CURRENT GROUND TOC1 See page 5-134. GROUND TOC2 MESSAGE See page 5-134. GROUND IOC1 See page 5-135. MESSAGE GROUND IOC2 See page 5-135. MESSAGE GE Multilin L30 Line Current Differential System 5-133...
Page 270 ETT NG GROUND TOC1 PKP RESET: GROUND TOC1 IG ≥ PICKUP GROUND TOC1 DPO SOURCE: GROUND TOC1 OP ETT NG GROUND TOC1 BLOCK: 827036A3.VSD Off = 0 Figure 5–59: GROUND TOC1 SCHEME LOGIC 5-134 L30 Line Current Differential System GE Multilin...
Page 271 ETT NG DELAY: GROUND IOC1 GROUND IOC1 RESET ETT NG PICKUP: DELAY: GROUND IOC1 SOURCE: IG ≥ PICKUP ETT NG GROUND IOC1 BLOCK: 827037A4.VSD Off = 0 Figure 5–60: GROUND IOC1 SCHEME LOGIC GE Multilin L30 Line Current Differential System 5-135...
Page 272: Negative Sequence Current
< NEG SEQ PICKUP NEG SEQ TOC1 DPO NEG SEQ TOC1 BLOCK: NEG SEQ TOC1 OP Off=0 SETTING NEG SEQ TOC1 SOURCE: Neg Seq 827057A4.CDR Figure 5–61: NEGATIVE SEQUENCE TOC1 SCHEME LOGIC 5-136 L30 Line Current Differential System GE Multilin...
Page 273 SETTING NEG SEQ IOC1 DPO NEG SEQ IOC1 OP _2 - K _1 PICKUP NEG SEQ IOC1 BLOCK: Off=0 SETTING NEG SEQ IOC1 SOURCE: 827058A5.CDR Figure 5–62: NEGATIVE SEQUENCE IOC1 SCHEME LOGIC GE Multilin L30 Line Current Differential System 5-137...
Page 274: Breaker Failure
Range: 0.001 to 30.000 pu in steps of 0.001 BF1 N AMP HISET MESSAGE PICKUP: 1.050 pu Range: 0.001 to 30.000 pu in steps of 0.001 BF1 PH AMP LOSET MESSAGE PICKUP: 1.050 pu 5-138 L30 Line Current Differential System GE Multilin...
Page 275 GE Multilin L30 Line Current Differential System 5-139...
Page 276 BREAKER FAILURE TIMER No. 2 (±1/8 cycle) INITIATE (1/8 cycle) BREAKER FAILURE CURRENT DETECTOR PICKUP (1/8 cycle) BREAKER FAILURE OUTPUT RELAY PICKUP (1/4 cycle) FAULT cycles OCCURS 827083A6.CDR Figure 5–63: BREAKER FAILURE MAIN PATH SEQUENCE 5-140 L30 Line Current Differential System GE Multilin...
Page 277 In microprocessor relays this time is not significant. In L30 relays, which use a Fourier transform, the calculated current magnitude will ramp-down to zero one power frequency cycle after the current is interrupted, and this lag should be included in the overall margin duration, as it occurs after current interruption.
Page 278 Upon operation of the breaker failure element for a single pole trip command, a three-pole trip command should be given via output operand BKR FAIL 1 TRIP OP 5-142 L30 Line Current Differential System GE Multilin...
Page 279 5 SETTINGS 5.6 GROUPED ELEMENTS Figure 5–65: SINGLE-POLE BREAKER FAILURE, TIMERS (Sheet 2 of 2) GE Multilin L30 Line Current Differential System 5-143...
Page 280 5.6 GROUPED ELEMENTS 5 SETTINGS Figure 5–66: THREE-POLE BREAKER FAILURE, INITIATE (Sheet 1 of 2) 5-144 L30 Line Current Differential System GE Multilin...
Page 281 5 SETTINGS 5.6 GROUPED ELEMENTS Figure 5–67: THREE-POLE BREAKER FAILURE, TIMERS (Sheet 2 of 2) GE Multilin L30 Line Current Differential System 5-145...
Page 282: Voltage Elements
– ------------------ ⎝ ⎠ pickup where: T = operating time D = undervoltage delay setting (D = 0.00 operates instantaneously) V = secondary voltage applied to the relay = pickup level pickup 5-146 L30 Line Current Differential System GE Multilin...
Page 283 The minimum voltage setting selects the operating voltage below which the element is blocked (a setting of “0” will allow a dead source to be considered a fault condition). GE Multilin L30 Line Current Differential System 5-147...
Page 284 The input voltage is the phase-to-phase voltage, either measured directly from delta-connected VTs or as cal- culated from phase-to-ground (wye) connected VTs. The specific voltages to be used for each phase are shown below. 5-148 L30 Line Current Differential System GE Multilin...
Page 285 There are three negative-sequence overvoltage elements available. The negative-sequence overvoltage element may be used to detect loss of one or two phases of the source, a reversed phase sequence of voltage, or a non-symmetrical system voltage condition. GE Multilin L30 Line Current Differential System 5-149...
Page 286 AUX UV1 EVENTS: MESSAGE Disabled The L30 contains one auxiliary undervoltage element for each VT bank. This element is intended for monitoring undervolt- age conditions of the auxiliary voltage. The selects the voltage level at which the time undervoltage ele- AUX UV1 PICKUP ment starts timing.
Page 287 AUX OV1 EVENTS: MESSAGE Disabled The L30 contains one auxiliary overvoltage element for each VT bank. This element is intended for monitoring overvoltage conditions of the auxiliary voltage. The nominal secondary voltage of the auxiliary voltage channel entered under SYSTEM...
Page 288 Off=0 DELAY : FLEXLOGIC OPERANDS < Vx Pickup AUX OV1 OP SETTING AUX OV1 DPO AUX OV1 SIGNAL AUX OV1 PKP SOURCE: AUXILIARY VOLT (Vx) 827836A2.CDR Figure 5–73: AUXILIARY OVERVOLTAGE SCHEME LOGIC 5-152 L30 Line Current Differential System GE Multilin...
Page 289: Supervising Elements
DD CONTROL LOGIC: This setting is used to prevent operation of I_0 and I_2 logic of disturbance detector during conditions such as single breaker pole being open which leads to unbalanced load current in single-pole tripping schemes. Breaker auxiliary contact can be used for such scheme. GE Multilin L30 Line Current Differential System 5-153...
Page 290 OR LOWER) IN 0.02 pu SETTING FLEXLOGIC OPERAND STEPS USING THE HIGHEST VALUE OF 50DD SV DD LOGIC I_0 AND I_2. SEAL-IN: Off=0 SETTING DD NON-CURRENT SUPV: Off=0 827044A6.CDR Figure 5–74: DISTURBANCE DETECTOR SCHEME LOGIC 5-154 L30 Line Current Differential System GE Multilin...
Page 291: Control Elements
The assigned operand is used to control the “On” state of a particular settings group. VIRTUAL OUTPUT 1 GE Multilin L30 Line Current Differential System 5-155...
Page 292: Selector Switch
SELECTOR 1 3BIT ACK: MESSAGE Range: Restore, Synchronize, Sync/Restore SELECTOR 1 POWER-UP MESSAGE MODE: Restore Range: Self-reset, Latched, Disabled SELECTOR 1 TARGETS: MESSAGE Self-reset Range: Disabled, Enabled SELECTOR 1 EVENTS: MESSAGE Disabled 5-156 L30 Line Current Differential System GE Multilin...
Page 293 SELECTOR 1 3BIT A0, A1, and A2: These settings specify a three-bit control input of the selector. The three-bit con- trol word pre-selects the position using the following encoding convention: POSITION rest GE Multilin L30 Line Current Differential System 5-157...
Page 294 The selector position pre-selected via the stepping up control input has not been confirmed before the time out. SELECTOR 1 BIT ALARM The selector position pre-selected via the three-bit control input has not been confirmed before the time out. 5-158 L30 Line Current Differential System GE Multilin...
Page 295 3BIT A2 POS 1 POS 2 POS 3 POS 4 POS 5 POS 6 POS 7 BIT 0 BIT 1 BIT 2 STP ALARM BIT ALARM ALARM 842737A1.CDR Figure 5–76: TIME-OUT MODE GE Multilin L30 Line Current Differential System 5-159...
Page 296 Make the following changes to selector switch element in the SETTINGS CONTROL ELEMENTS SELECTOR SWITCH menu to assign control to user programmable pushbutton 1 and contact inputs 1 through 3: SELECTOR SWITCH 1 5-160 L30 Line Current Differential System GE Multilin...
Page 297 SELECTOR 1 BIT ALARM 3-bit position out SELECTOR 1 ALARM SELECTOR 1 PWR ALARM SELECTOR 1 BIT 0 SELECTOR 1 BIT 1 SELECTOR 1 BIT 2 842012A2.CDR Figure 5–78: SELECTOR SWITCH LOGIC GE Multilin L30 Line Current Differential System 5-161...
Page 298: Underfrequency
≤ 0 < f PICKUP UNDERFREQ 1 OP UNDERFREQ 1 ACTUAL VALUES MIN VOLT / AMP: UNDERFREQ 1 SOURCE: ≥ Level Minimum VOLT / AMP Frequency 827079A8.CDR Figure 5–79: UNDERFREQUENCY SCHEME LOGIC 5-162 L30 Line Current Differential System GE Multilin...
Page 299: Synchrocheck
ΔF. This time can be calculated by: ------------------------------- - (EQ 5.20) 360° × ΔF ----------------- - 2 ΔΦ × where: ΔΦ = phase angle difference in degrees; ΔF = frequency difference in Hz. GE Multilin L30 Line Current Differential System 5-163...
Page 300 COMBINATION SOURCE Y SOURCE Z Phase VTs and Phase VTs and Phase Phase Auxiliary VT Auxiliary VT Phase VTs and Phase VT Phase Phase Auxiliary VT Phase VT Phase VT Phase Phase 5-164 L30 Line Current Differential System GE Multilin...
Page 301 The relay will use the phase channel of a three-phase set of voltages if pro- grammed as part of that source. The relay will use the auxiliary voltage channel only if that channel is programmed as part of the Source and a three-phase set is not. GE Multilin L30 Line Current Differential System 5-165...
Page 302: Autoreclose
Synchrocheck 1 V Δ Synchrocheck 1 ΔΦ Synchrocheck 1 F Δ 827076AB.CDR Figure 5–80: SYNCHROCHECK SCHEME LOGIC 5.7.6 AUTORECLOSE PATH: SETTINGS CONTROL ELEMENTS AUTORECLOSE AUTORECLOSE 1 Range: Disabled, Enabled AUTORECLOSE 1 AR1 FUNCTION: Disabled 5-166 L30 Line Current Differential System GE Multilin...
Page 303 AR1 ADD DELAY 2: MESSAGE Range: 0.00 to 655.35 s in steps of 0.01 AR1 DELAY 2: MESSAGE 0.000 s Range: 0.00 to 655.35 s in steps of 0.01 AR1 RESET LOCKOUT MESSAGE DELAY: 60.000 GE Multilin L30 Line Current Differential System 5-167...
Page 304 (local or remote). The reset from lockout can be accomplished by operator command, by manually closing the breaker, or whenever the breaker has been closed and stays closed for a preset time. 5-168 L30 Line Current Differential System GE Multilin...
Page 305 ‘reclose-in-progress’ state. If all condi- tions allowing a breaker closure are not satisfied when this time expires, the scheme goes to “Lockout”. This timer must be set to a delay less than the reset timer. NOTE GE Multilin L30 Line Current Differential System 5-169...
Page 306 5.7 CONTROL ELEMENTS 5 SETTINGS To sheet 2 Figure 5–81: AUTORECLOSURE SCHEME LOGIC (Sheet 1 of 2) 5-170 L30 Line Current Differential System GE Multilin...
Page 307 5 SETTINGS 5.7 CONTROL ELEMENTS Figure 5–82: AUTORECLOSURE SCHEME LOGIC (Sheet 2 of 2) GE Multilin L30 Line Current Differential System 5-171...
Page 308 5.7 CONTROL ELEMENTS 5 SETTINGS Figure 5–83: SINGLE SHOT AUTORECLOSING SEQUENCE - PERMANENT FAULT 5-172 L30 Line Current Differential System GE Multilin...
Page 309: Digital Elements
Some versions of the digital input modules include an active voltage monitor circuit connected across form-A contacts. The voltage monitor circuit limits the trickle current through the output circuit (see technical specifications for form-A). GE Multilin L30 Line Current Differential System 5-173...
Page 310 The settings to use digital element 1 to monitor the breaker trip circuit are indicated below (EnerVista UR Setup example shown): setting should be greater than the operating time of the breaker to avoid nuisance PICKUP DELAY alarms. NOTE 5-174 L30 Line Current Differential System GE Multilin...
Page 311 V = voltage monitor 827074A3.CDR Figure 5–86: TRIP CIRCUIT EXAMPLE 2 The wiring connection for two examples above is applicable to both form-A contacts with voltage monitoring and solid-state contact with voltage monitoring. NOTE GE Multilin L30 Line Current Differential System 5-175...
Page 312: Digital Counters
–2,147,483,648 counts, the counter will rollover to +2,147,483,647. • COUNTER 1 BLOCK: Selects the FlexLogic™ operand for blocking the counting operation. All counter operands are blocked. 5-176 L30 Line Current Differential System GE Multilin...
Page 313 COUNTER 1 FROZEN: Off = 0 STORE DATE & TIME Date & Time SETTING COUNT1 FREEZE/RESET: Off = 0 827065A1.VSD SETTING COUNT1 FREEZE/COUNT: Off = 0 Figure 5–87: DIGITAL COUNTER SCHEME LOGIC GE Multilin L30 Line Current Differential System 5-177...
Page 314: Monitoring Elements
This interval includes the operating time of the output relay, any other auxiliary 5-178 L30 Line Current Differential System GE Multilin...
Page 315 BKR 1 ARC AMP LIMIT: Selects the threshold value above which the output operand is set. Breaker Contacts Initiate Extinguished Part Total Area = Breaker Arcing Current (kA·cycle) Programmable 100 ms Start Delay Start Stop Integration Integration Figure 5–88: ARCING CURRENT MEASUREMENT GE Multilin L30 Line Current Differential System 5-179...
Page 316 BKR 1 ARCING AMP C 827071A3.CDR BKR 1 OPERATING TIME A BKR 1 OPERATING TIME B BKR 1 OPERATING TIME C BKR 1 OPERATING TIME Figure 5–89: BREAKER ARCING CURRENT SCHEME LOGIC 5-180 L30 Line Current Differential System GE Multilin...
Page 317 CT FAIL 3I0 INPUT 2 PICKUP: This setting selects the 3I_0 pickup value for input 2 (different CT input) of the relay. • CT FAIL 3V0 INPUT: This setting selects the voltage source. GE Multilin L30 Line Current Differential System 5-181...
Page 318 CT FAIL 3IO INPUT2: CT FAIL 3IO INPUT2 PKP: SRC2 3IO > PICKUP SETTING SETTING CT FAIL 3VO INPUT: CT FAIL 3VO INPUT: SRC1 3VO > PICKUP 827048A6.CDR Figure 5–90: CT FAILURE DETECTOR SCHEME LOGIC 5-182 L30 Line Current Differential System GE Multilin...
Page 319 The OPEN POLE OP operand is applicable to the D60, L60, and L90 only. RESET Reset-dominant FLEXLOGIC OPERAND SRC1 VT FUSE FAIL VOL LOSS 827093AM.CDR Figure 5–91: VT FUSE FAIL SCHEME LOGIC GE Multilin L30 Line Current Differential System 5-183...
Page 320: Trip Bus
If more than one operate-type operand is required, it may be assigned directly from the trip bus menu. 5-184 L30 Line Current Differential System GE Multilin...
Page 321 TRIP BUS 1 PKP = Enabled TRIP BUS 1 BLOCK = Off SETTINGS TRIP BUS 1 LATCHING = Enabled TRIP BUS 1 RESET = Off FLEXLOGIC OPERAND RESET OP 842023A1.CDR Figure 5–93: TRIP BUS LOGIC GE Multilin L30 Line Current Differential System 5-185...
Page 322: Inputs And Outputs
The DC input voltage is compared to a user-settable threshold. A new contact input state must be maintained for a user- settable debounce time in order for the L30 to validate the new contact state. In the figure below, the debounce time is set at 2.5 ms;...
Page 323 Event Records menu, make the following settings changes: "Breaker Closed (52b)" CONTACT INPUT H5A ID: "Enabled" CONTACT INPUT H5A EVENTS: Note that the 52b contact is closed when the breaker is open and open when the breaker is closed. GE Multilin L30 Line Current Differential System 5-187...
Page 324: Virtual Inputs
“Virtual Input 1 to OFF = 0” VIRTUAL INPUT 1 ID: (Flexlogic Operand) SETTING Virt Ip 1 VIRTUAL INPUT 1 TYPE: Latched Self - Reset 827080A2.CDR Figure 5–95: VIRTUAL INPUTS SCHEME LOGIC 5-188 L30 Line Current Differential System GE Multilin...
Page 325: Contact Outputs
The most dependable protection of the initiating contact is provided by directly measuring current in the tripping circuit, and using this parameter to control resetting of the initiating relay. This scheme is often called trip seal-in. This can be realized in the L30 using the FlexLogic™ operand to seal-in the contact output as follows: CONT OP 1 ION “Cont Op 1"...
Page 326 5 SETTINGS The L30 latching output contacts are mechanically bi-stable and controlled by two separate (open and close) coils. As such they retain their position even if the relay is not powered up. The relay recognizes all latching output contact cards and pop- ulates the setting menu accordingly.
Page 327: Virtual Outputs
FlexLogic™ equations. Any change of state of a virtual output can be logged as an event if programmed to do so. For example, if Virtual Output 1 is the trip signal from FlexLogic™ and the trip relay is used to signal events, the settings would be programmed as follows: GE Multilin L30 Line Current Differential System 5-191...
Page 328: Remote Devices
32 “DNA” bit pairs that represent the state of two pre-defined events and 30 user-defined events. All remaining bit pairs are “UserSt” bit pairs, which are status bits representing user-definable events. The L30 implementation provides 32 of the 96 available UserSt bit pairs.
Page 329: Remote Inputs
5.8 INPUTS AND OUTPUTS c) LOCAL DEVICES: DEVICE ID FOR TRANSMITTING GSSE MESSAGES In a L30 relay, the device ID that represents the IEC 61850 GOOSE application ID (GoID) name string sent as part of each GOOSE message is programmed in the...
Page 330: Remote Double-Point Status Inputs
RemDPS , and FlexLogic™ operands. These operands can then be Ip 1 BAD RemDPS Ip 1 INTERM RemDPS Ip 1 OFF RemDPS Ip 1 ON used in breaker or disconnect control schemes. 5-194 L30 Line Current Differential System GE Multilin...
Page 331: Remote Outputs
Direct input and output FlexLogic™ operands to be used at the local relay are assigned as follows: • Direct input/output 1-1 through direct input/output 1-8 for communications channel 1. • Direct input/output 2-1 through direct input/output 2-8 for communications channel 2 (three-terminal systems only). GE Multilin L30 Line Current Differential System 5-195...
Page 332 FlexLogic™ operand. The setting above is used to select the operand which represents a specific function (as selected by the user) to be transmitted. 5-196 L30 Line Current Differential System GE Multilin...
Page 333 L90 communication channel (same for 1-2...1-8) (87L is Enabled) SETTING DIRECT OUTPUT 1-1: FLEXLOGIC OPERAND (same for 1-2...1-8) Fail DIRECT I/P 1-1 Off (Flexlogic Operand) (same for 1-2...1-8) 831024A1.CDR Figure 5–96: DIRECT INPUTS/OUTPUTS LOGIC GE Multilin L30 Line Current Differential System 5-197...
Page 334: Resetting
GOOSE ANALOG 1 PU: This setting specifies the per-unit base factor when using the GOOSE analog input FlexAna- log™ values in other L30 features, such as FlexElements™. The base factor is applied to the GOOSE analog input FlexAnalog quantity to normalize it to a per-unit quantity. The base units are described in the following table.
Page 335: Iec 61850 Goose Integers
= maximum primary RMS value of all the sources related to the +IN and –IN inputs BASE (Max Delta Volts) The GOOSE analog input FlexAnalog™ values are available for use in other L30 functions that use FlexAnalog™ values. 5.8.12 IEC 61850 GOOSE INTEGERS PATH: SETTINGS...
Page 336: Transducer Inputs And Outputs
–20 to +180 MW; in this case the value would be “–20” and the DCMA INPUT H1 MIN VALUE DCMA INPUT H1 MAX value “180”. Intermediate values between the min and max values are scaled linearly. VALUE 5-200 L30 Line Current Differential System GE Multilin...
Page 337: Rtd Inputs
1.5 pu. FlexElement™ operands are available to FlexLogic™ for further interlocking or to operate an output contact directly. Refer to the following table for reference temperature values for each RTD type. GE Multilin L30 Line Current Differential System 5-201...
Page 338 168.47 280.77 233.97 16.00 172.46 291.96 243.30 16.39 175.84 303.46 252.88 16.78 179.51 315.31 262.76 17.17 183.17 327.54 272.94 17.56 186.82 340.14 283.45 17.95 190.45 353.14 294.28 18.34 194.08 366.53 305.44 18.73 5-202 L30 Line Current Differential System GE Multilin...
Page 339: Dcma Outputs
– MAX VAL MIN VAL MAX VAL < 0.1 pu. The resulting characteristic is illustrated in the following figure. DRIVING SIGNAL MIN VAL MAX VAL 842739A1.CDR Figure 5–97: DCMA OUTPUT CHARACTERISTIC GE Multilin L30 Line Current Differential System 5-203...
Page 340 The CT ratio is 5000:5 and the maximum load current is 4200 A. The current should be monitored from 0 A upwards, allow- ing for 50% overload. The phase current with the 50% overload margin is: 5-204 L30 Line Current Differential System GE Multilin...
Page 341 1.27 kV – • ±0.5% of reading For example, under nominal conditions, the positive-sequence reads 230.94 kV and the worst-case error is 0.005 x 230.94 kV + 1.27 kV = 2.42 kV. GE Multilin L30 Line Current Differential System 5-205...
Page 342: Testing
TEST MODE FORCING: MESSAGE The L30 provides a test facility to verify the functionality of contact inputs and outputs, some communication channels and the phasor measurement unit (where applicable), using simulated conditions. The test mode is indicated on the relay face- plate by a Test Mode LED indicator.
Page 343: Force Contact Inputs
Following a restart, power up, settings TEST MODE FUNCTION upload, or firmware upgrade, the test mode will remain at the last programmed value. This allows a L30 that has been placed in isolated mode to remain isolated during testing and maintenance activities. On restart, the TEST MODE FORCING setting and the force contact input and force contact output settings all revert to their default states.
Page 344: Force Contact Outputs
USER PUSHBUTTON 1 PUSHBUTTON 1 FUNCTION input 1 to initiate the Test mode, make the following changes in the menu: SETTINGS TESTING TEST MODE “Enabled” and “ ” TEST MODE FUNCTION: TEST MODE INITIATE: 5-208 L30 Line Current Differential System GE Multilin...
Page 345: Channel Tests
Range: 0.000 to 9.999 kA in steps of 0.001 PMU 1 IA TEST MESSAGE MAGNITUDE: 1.000 kA Range: –180.00 to 180.00° in steps of 0.05 PMU 1 IA TEST MESSAGE ANGLE: –10.00° GE Multilin L30 Line Current Differential System 5-209...
Page 346 When required, it is recommended to use the user-pro- grammable digital channels to signal the C37.118 client that test values are being sent in place of the real measurements. 5-210 L30 Line Current Differential System GE Multilin...
Page 347: Actual Values
GOOSE UINTEGERS ETHERNET See page 6-8. ETHERNET SWITCH See page 6-8. ACTUAL VALUES 87L DIFFERENTIAL See page 6-13. METERING CURRENT SOURCE SRC 1 See page 6-14. SOURCE SRC 2 SYNCHROCHECK See page 6-17. GE Multilin L30 Line Current Differential System...
Page 348 See page 6-21. OSCILLOGRAPHY See page 6-22. DATA LOGGER See page 6-22. PMU RECORDS See page 6-22. MAINTENANCE See page 6-23. ACTUAL VALUES MODEL INFORMATION See page 6-24. PRODUCT INFO FIRMWARE REVISIONS See page 6-24. L30 Line Current Differential System GE Multilin...
Page 349: Status
The state displayed will be that of the remote point unless the remote device has been established to be “Offline” in which case the value shown is the programmed default state for the remote input. GE Multilin L30 Line Current Differential System...
Page 350: Remote Double-Point Status Inputs
Range: On, Off, VOff, VOn, IOn, IOff CONTACT OUTPUTS Cont Op 1 Range: On, Off, VOff, VOn, IOn, IOff Cont Op 2 MESSAGE ↓ Range: On, Off, VOff, VOn, IOn, IOff Cont Op xx MESSAGE L30 Line Current Differential System GE Multilin...
Page 351: Virtual Outputs
The present state of up to 16 programmed remote devices is shown here. The message indi- ALL REMOTE DEVICES ONLINE cates whether or not all programmed remote devices are online. If the corresponding state is "No", then at least one required remote device is not online. GE Multilin L30 Line Current Differential System...
Page 352: Channel Tests
Range: n/a, FAIL, OK VALIDITY OF CHANNEL MESSAGE CONFIGURATION: n/a Range: n/a, FAIL, OK PFLL MESSAGE STATUS: n/a The status information for two channels is shown here. A brief description of each actual value is below: L30 Line Current Differential System GE Multilin...
Page 353: Digital Counters
COUNTER 1 MICROS 6.2.12 SELECTOR SWITCHES PATH: ACTUAL VALUES STATUS SELECTOR SWITCHES Range: Current Position / 7 SELECTOR SWITCHES SELECTOR SWITCH 1 POSITION: 0/7 Range: Current Position / 7 SELECTOR SWITCH 2 MESSAGE POSITION: 0/7 GE Multilin L30 Line Current Differential System...
Page 354: Flex States
UINT INPUT 16 MESSAGE The L30 Line Current Differential System is provided with optional IEC 61850 communications capability. This feature is specified as a software option at the time of ordering. Refer to the Ordering section of chap- ter 2 for additional details. The IEC 61850 protocol features are not available if CPU type E is ordered.
Page 355: Ethernet Switch
SWITCH MAC ADDRESS: MESSAGE 00A0F40138FA These actual values appear only if the L30 is ordered with an Ethernet switch module (type 2S or 2T). The status informa- tion for the Ethernet switch is shown in this menu. • SWITCH 1 PORT STATUS to SWITCH 6 PORT STATUS: These values represents the receiver status of each port on the Ethernet switch.
Page 356: Metering Conventions
WATTS = Negative VARS = Positive PF = Lead PF = Lag PF = Lead Current UR RELAY 827239AC.CDR S=VI Generator Figure 6–1: FLOW DIRECTION OF SIGNED VALUES FOR WATTS AND VARS 6-10 L30 Line Current Differential System GE Multilin...
Page 357 ABC phase rotation: • ACB phase rotation: -- - V -- - V -- - V -- - V -- - V -- - V The above equations apply to currents as well. GE Multilin L30 Line Current Differential System 6-11...
Page 358 The power system voltages are phase-referenced – for simplicity – to VAG and VAB, respectively. This, however, is a relative matter. It is important to remember that the L30 displays are always referenced as specified under SETTINGS...
Page 359: Differential Current
The metered current values are displayed for all line terminals in fundamental phasor form. All angles are shown with respect to the reference common for all L30 devices; that is, frequency, source currents, and voltages. The metered pri- mary differential and restraint currents are displayed for the local relay.
Page 360: Sources
0.000 0.0° SRC 1 PHASOR Ic: MESSAGE 0.000 0.0° SRC 1 PHASOR In: MESSAGE 0.000 0.0° SRC 1 ZERO SEQ I0: MESSAGE 0.000 0.0° SRC 1 POS SEQ I1: MESSAGE 0.000 0.0° 6-14 L30 Line Current Differential System GE Multilin...
Page 361 RMS Vca: MESSAGE 0.00 SRC 1 PHASOR Vab: MESSAGE 0.000 0.0° SRC 1 PHASOR Vbc: MESSAGE 0.000 0.0° SRC 1 PHASOR Vca: MESSAGE 0.000 0.0° SRC 1 ZERO SEQ V0: MESSAGE 0.000 0.0° GE Multilin L30 Line Current Differential System 6-15...
Page 362 APPARENT PWR MESSAGE 3φ: 0.000 SRC 1 APPARENT PWR MESSAGE φa: 0.000 SRC 1 APPARENT PWR MESSAGE φb: 0.000 SRC 1 APPARENT PWR MESSAGE φc: 0.000 SRC 1 POWER FACTOR MESSAGE 3φ: 1.000 6-16 L30 Line Current Differential System GE Multilin...
Page 363: Synchrocheck
TRACKING FREQUENCY adjusted at all terminals. If currents are below 0.125 pu, then the is used. NOMINAL FREQUENCY GE Multilin L30 Line Current Differential System 6-17...
Page 364: Flexelements
MESSAGE 0.000 The L30 Line Current Differential System is provided with optional IEC 61850 communications capability. This feature is specified as a software option at the time of ordering. Refer to the Ordering section of chap- ter 2 for additional details. The IEC 61850 protocol features are not available if CPU type E is ordered.
Page 365: Phasor Measurement Unit
COUNTER: 0 The above actual values are displayed without the corresponding time stamp as they become available per the recording rate setting. Also, the recording post-filtering setting is applied to these values. GE Multilin L30 Line Current Differential System 6-19...
Page 366: Transducer Inputs And Outputs
RTD INPUT xx -50 °C Actual values for each RTD input channel that is enabled are displayed with the top line as the programmed channel ID and the bottom line as the value. 6-20 L30 Line Current Differential System GE Multilin...
Page 367: Records
If all 1024 event records have been filled, the oldest record will be removed as a new record is added. Each event record shows the event identifier/sequence number, cause, and date/time stamp associated with the event trigger. Refer to the menu for clearing event records. COMMANDS CLEAR RECORDS GE Multilin L30 Line Current Differential System 6-21...
Page 368: Oscillography
RECORDING The number of triggers applicable to the phasor measurement unit recorder is indicated by the value. NUMBER OF TRIGGERS The status of the phasor measurement unit recorder is indicated as follows: 6-22 L30 Line Current Differential System GE Multilin...
Page 369: Breaker Maintenance
BKR 1 ARCING AMP menu for clearing breaker arcing current records. The COMMANDS CLEAR RECORDS BREAKER OPERATING TIME defined as the slowest operating time of breaker poles that were initiated to open. GE Multilin L30 Line Current Differential System 6-23...
Page 370: Product Information
6 ACTUAL VALUES 6.5PRODUCT INFORMATION 6.5.1 MODEL INFORMATION PATH: ACTUAL VALUES PRODUCT INFO MODEL INFORMATION Range: standard GE multilin order code format; MODEL INFORMATION ORDER CODE LINE 1: example order code shown L30-E00-HCH-F8F-H6A Range: standard GE multilin order code format...
Page 371: Commands And
The states of up to 64 virtual inputs are changed here. The first line of the display indicates the ID of the virtual input. The second line indicates the current or selected status of the virtual input. This status will be a state off (logic 0) or on (logic 1). GE Multilin L30 Line Current Differential System...
Page 372: Clear Records
24-hour clock. The complete date, as a minimum, must be entered to allow execution of this com- mand. The new time will take effect at the moment the ENTER key is clicked. L30 Line Current Differential System GE Multilin...
Page 373: Relay Maintenance
Various self-checking diagnostics are performed in the background while the L30 is running, and diagnostic information is stored on the non-volatile memory from time to time based on the self-checking result. Although the diagnostic information is cleared before the L30 is shipped from the factory, the user may want to clear the diagnostic information for themselves under certain circumstances.
Page 374 PMU and not to the absolute UTC time. Therefore a simple IRIG-B genera- tor could be used instead. Also, the test set does not have to support GPS synchronization. Any stable signal source can L30 Line Current Differential System GE Multilin...
Page 375 The one-shot feature can be used for ad hoc collection of synchronized measurements in the network. Two or more PMU can be pre-scheduled to freeze their measurements at the same time. When frozen the measurements could be collected using EnerVista UR Setup or a protocol client. GE Multilin L30 Line Current Differential System...
Page 376: Targets Menu
The critical fail relay on the power supply module is de-energized. • All other output relays are de-energized and are prevented from further operation. • The faceplate In Service LED indicator is turned off. • event is recorded. RELAY OUT OF SERVICE L30 Line Current Differential System GE Multilin...
Page 377 Contact Factory (xxx) • Latched target message: Yes. • Description of problem: One or more installed hardware modules is not compatible with the L30 order code. • How often the test is performed: Module dependent. • What to do: Contact the factory and supply the failure code noted in the display. The “xxx” text identifies the failed mod- ule (for example, F8L).
Page 378 How often the test is performed: Monitored every five seconds. An error is issued after five consecutive failures • What to do: Check the L30 device and switch IP configuration settings. Check for incorrect UR port (port 7) settings on the Ethernet switch. Check the power to the switch.
Page 379 What to do: Check direct input and output configuration and wiring. REMOTE DEVICE FAIL: COMM Path Incomplete • Latched target message: No. • Description of problem: One or more GOOSE devices are not responding. GE Multilin L30 Line Current Differential System...
Page 380 Description of problem: The ambient temperature is greater than the maximum operating temperature (+80°C). • How often the test is performed: Every hour. • What to do: Remove the L30 from service and install in a location that meets operating temperature standards. UNEXPECTED RESTART: Press “RESET” key •...
Page 381: Security
When entering a settings or command password via EnerVista or any serial interface, the user must enter the correspond- ing connection password. If the connection is to the back of the L30, the remote password must be used. If the connection is to the RS232 port of the faceplate, the local password must be used.
Page 382: Password Security Menu
If an entered password is lost (or forgotten), consult the factory with the corresponding ENCRYPTED PASSWORD If the setting and command passwords are identical, then this one password allows access to both com- mands and settings. NOTE L30 Line Current Differential System GE Multilin...
Page 383: Remote Passwords
ACCESS LEVEL SUPERVISION TIMEOUTS Range: 2 to 5 in steps of 1 INVALID ATTEMPTS MESSAGE BEFORE LOCKOUT: 3 Range: 5 to 60 minutes in steps of 1 PASSWORD LOCKOUT MESSAGE DURATION: 5 min GE Multilin L30 Line Current Differential System...
Page 384: Dual Permission Security Access
INVALID ATTEMPS BEFORE LOCKOUT The L30 provides a means to raise an alarm upon failed password entry. Should password verification fail while accessing a password-protected level of the relay (either settings or commands), the FlexLogic™ operand is UNAUTHORIZED ACCESS asserted.
Page 385 If access is permitted and an off-to-on transition of the FlexLogic™ operand is detected, the timeout is restarted. The status of this timer is updated every 5 seconds. GE Multilin L30 Line Current Differential System...
Page 386: Settings Security
(settings file templates) and online devices (online settings templates). The func- tionality is identical for both purposes. The settings template feature requires that both the EnerVista UR Setup software and the L30 firmware are at ver- sions 5.40 or higher.
Page 387 The following procedure describes how to add password protection to a settings file template. Select a settings file from the offline window on the left of the EnerVista UR Setup main screen. Selecting the Template Mode > Password Protect Template option. GE Multilin L30 Line Current Differential System...
Page 388 Template Mode > View In Template Mode command. The template specifies that only the Pickup Curve Phase time overcurrent settings window without template applied. settings be available. 842858A1.CDR Figure 8–4: APPLYING TEMPLATES VIA THE VIEW IN TEMPLATE MODE COMMAND L30 Line Current Differential System GE Multilin...
Page 389 Select an installed device or settings file from the tree menu on the left of the EnerVista UR Setup main screen. Select the Template Mode > Remove Settings Template option. Enter the template password and click OK to continue. GE Multilin L30 Line Current Differential System...
Page 390: Securing And Locking Flexlogic™ Equations
Click on Save to save and apply changes to the settings template. Select the Template Mode > View In Template Mode option to view the template. Apply a password to the template then click OK to secure the FlexLogic™ equation. 8-10 L30 Line Current Differential System GE Multilin...
Page 391 FlexLogic™ entries in a settings file have been secured, use the following procedure to lock the settings file to a specific serial number. Select the settings file in the offline window. Right-click on the file and select the Edit Settings File Properties item. GE Multilin L30 Line Current Differential System 8-11...
Page 392: Settings File Traceability
When a settings file is transfered to a L30 device, the date, time, and serial number of the L30 are sent back to EnerVista UR Setup and added to the settings file on the local PC. This infor- mation can be compared with the L30 actual values at any later date to determine if security has been compromised.
Page 393 8.2 SETTINGS SECURITY The transfer date of a setting file written to a L30 is logged in the relay and can be viewed via EnerVista UR Setup or the front panel display. Likewise, the transfer date of a setting file saved to a local PC is logged in EnerVista UR Setup.
Page 394 ONLINE DEVICE TRACEABILITY INFORMATION The L30 serial number and file transfer date are available for an online device through the actual values. Select the Actual Values > Product Info > Model Information menu item within the EnerVista UR Setup online window as shown in the example below.
Page 395: Enervista Security Management System
Select the Security > User Management menu item to open the user management configuration window. Enter a username in the User field. The username must be between 4 and 20 characters in length. GE Multilin L30 Line Current Differential System 8-15...
Page 396: Modifying User Privileges
The EnerVista security management system must be enabled. The following procedure describes how to modify user privileges. Select the Security > User Management menu item to open the user management configuration window. Locate the username in the User field. 8-16 L30 Line Current Differential System GE Multilin...
Page 397 When this box is checked, the user will become an EnerVista URPlus Setup administrator, therefore receiving all of the administrative rights. Exercise caution when granting administrator rights. Click OK to save the changes to user to the security management system. GE Multilin L30 Line Current Differential System 8-17...
Page 398 8.3 ENERVISTA SECURITY MANAGEMENT SYSTEM 8 SECURITY 8-18 L30 Line Current Differential System GE Multilin...
Page 399: Theory Of Operation
The second major technical consideration is the restraint characteristic, which is the decision boundary between situations that are declared to be a fault and those that are not. The L30 uses an innovative adaptive decision process based on an on-line computation of the sources of measurement error. In this adaptive approach, the restraint region is an ellipse with variable major axis, minor axis, and orientation.
Page 400: Removal Of Decaying Offset
Since the sampling clocks are synchronized, the time stamp is simply a sequence number. L30 Line Current Differential System GE Multilin...
Page 401: Disturbance Detection
CT saturation is detected (see CT Saturation Detection for details); is an adaptive restraint term (see Online Estimate Of Measurement Error for details) LOC_ADA_A The squared restraining current is calculated as a sum of squared local and all remote restraints: GE Multilin L30 Line Current Differential System...
Page 402: Ground Differential Element
The line ground differential function allows sensitive ground protection for single-line to-ground faults, allowing the phase differential element to be set higher (above load) to provide protection for multi-phase faults. The L30 ground differential function calculates ground differential current from all terminal phase currents. The maximum phase current is used for the restraint.
Page 403: Clock Synchronization
In all cases, an estimate of phase error is computed and used to automatically adapt the restraint region to compensate. Frequency tracking is provided that will accommodate any fre- quency shift normally encountered in power systems. GE Multilin L30 Line Current Differential System...
Page 404: Frequency Tracking And Phase Locking
GPS (Global Positioning System) to compensate for the channel delay asymmetry. This feature requires a GPS receiver to provide a GPS clock signal to the L30 IRIG-B input. With this option there are two clocks as each terminal: a local sampling clock and a local GPS clock.
Page 405: Frequency Detection
Current measurements can generally provide the most accurate information, but are not always available and may contain large errors during faults or switching transients. Time stamped messages are GE Multilin L30 Line Current Differential System...
Page 406 256 to the round trip and add 128 to the phase angle. Also, if the above equations are computed using integer values of time stamps, a conversion to phase angle in radians is required by multiplying by π / 32. L30 Line Current Differential System GE Multilin...
Page 407 ( T1 T2 T2 T1 ) i -3, i-2, i -1, δ θ Calculate 1, 1. Speed up Slow down 831729A2.CDR Figure 9–2: ROUND TRIP DELAY AND CLOCK OFFSET COMPUTATION FROM TIME STAMPS GE Multilin L30 Line Current Differential System...
Page 408: Phase Locking Filter
T = the time between execution of the filter algorithm repeat = time constant for the primary phase locked loop phase = time constant for the frequency locked loop frequency 9-10 L30 Line Current Differential System GE Multilin...
Page 409: Matching Phaselets
A 6 Mhz clock with a 16-bit hardware counter is adequate, provided the method is used for achieving the 32-bit resolu- tion that is described in this document. • An 8-bit time stamp is adequate provided time stamp messages are exchanged once per cycle. • A 4-bit message sequence number is adequate. GE Multilin L30 Line Current Differential System 9-11...
Page 410: Online Estimate Of Measurement Errors
1_A k ( ) 1_ADA_A 1_MAG_A Another source of the measurement errors is clock synchronization error, resulting in a clock uncertainty term. The L30 algorithm accounts for two terms of synchronization error corresponding to: • Raw clock deviation computed from time stamps. There are several effects that cause it to not track exactly. First, the ping-pong algorithm inherently produces slightly different estimates of clock deviation at each terminal.
Page 411: Ct Saturation Detection
For short transmission lines the charging current is a small factor and can therefore be treated as an unknown error. In this application the L30 can be deployed with- out voltage sensors and the line charging current is included as a constant term in the total variance, increasing the differ- ential restraint current.
Page 412: Differential Element Characteristics
The L30 incorporates an adaptive differential algorithm based on the traditional percent differential principle. In the tradi- tional percent differential scheme, the operating parameter is based on the phasor sum of currents in the zone and the restraint parameter is based on the scalar (or average scalar) sum of the currents in the protected zone - when the operat- ing parameter divided by the restraint parameter is above the slope setting, the relay will operate.
Page 413: Relay Synchronization
9.1 OVERVIEW The major difference between the L30 differential scheme and a percent differential scheme is the use of an estimate of errors in the input currents to increase the restraint parameter during faults, permitting the use of more sensitive settings than those used in the traditional scheme.
Page 414: Operating Condition Characteristics
9.2OPERATING CONDITION CHARACTERISTICS 9.2.1 DESCRIPTION Characteristics of differential elements can be shown in the complex plane. The operating characteristics of the L30 are fundamentally dependant on the relative ratios of the local and remote current phasor magnitudes and the angles of as shown in the Restraint Characteristics figure.
Page 415 9 THEORY OF OPERATION 9.2 OPERATING CONDITION CHARACTERISTICS Figure 9–7: RESTRAINT CHARACTERISTICS GE Multilin L30 Line Current Differential System 9-17...
Page 416: Trip Decision Example
Current differential section of chapter 5. The following figure shows how the L30 settings affect the restraint characteristics. The local and remote currents are 180° apart, which represents an external fault. The breakpoint between the two slopes indicates the point where the restraint area is becoming wider to override uncertainties from CT saturation, fault noise, harmonics, etc.
Page 417 9 THEORY OF OPERATION 9.2 OPERATING CONDITION CHARACTERISTICS loc pu OPERATE RESTRAINT BP=8, P=2, S1=30%, S2=50% BP=4, P=1, S1=30%, S2=50% BP=4, P=1, S1=20%, S2=40% OPERATE rem pu 831725A1.CDR Figure 9–8: SETTINGS IMPACT ON RESTRAINT CHARACTERISTIC GE Multilin L30 Line Current Differential System 9-19...
Page 418 Depending on the fault type, appropriate voltage and current signals are selected from the phase quantities before applying the two equations above (the superscripts denote phases, the subscripts denote stations). For AG faults: ⋅ (EQ 9.43) 9-20 L30 Line Current Differential System GE Multilin...
Page 419 -- - V – – (EQ 9.50) SYS0 -- - V – – SYS0 where Z is the equivalent zero-sequence impedance behind the relay as entered under the fault report setting menu. SYS0 GE Multilin L30 Line Current Differential System 9-21...
Page 420: Fault Locator
FAULT FAULT LOCATION 3I_0 LOCATOR 1 FAULT# RECLOSE SHOT VA or VAB VB or VBC VC or VCA Vn or V_0 SHOT # FROM 827094A5.CDR AUTO RECLOSURE Figure 9–10: FAULT LOCATOR SCHEME 9-22 L30 Line Current Differential System GE Multilin...
Page 421: Introduction
CTs. Ideally, CTs selected for line current differential protection should be based on the criteria described below. If the available CTs do not meet the described criteria, the L30 will still provide good security for CT saturation for external faults.
Page 422: Calculation Example 2
12000 A × × 0.008 Ω ---------------------------------- - 4.71 0.75 0.52 291.89 V (< 300 V, which is OK) (EQ 10.9) ratio of 300:1 The CT will provide acceptable performance in this application. 10-2 L30 Line Current Differential System GE Multilin...
Page 423: Introduction
10.2CURRENT DIFFERENTIAL (87L) SETTINGS 10.2.1 INTRODUCTION Software is available from the GE Multilin website that is helpful in selecting settings for the specific appli- cation. Checking the performance of selected element settings with respect to known power system fault NOTE parameters makes it relatively simple to choose the optimum settings for the application.
Page 424: Ct Tap
For relay 1, channel 1 communicates to relay 2 and channel 2 communicates to relay 3 • For relay 2, channel 1 communicates to relay 1 and channel 2 communicates to relay 3 10-4 L30 Line Current Differential System GE Multilin...
Page 425 This satisfies the equality condition indicated earlier. During on-load tests, the differential current at all terminals should be the same and generally equal to the charging current if the tap and CT ratio settings are chosen correctly. GE Multilin L30 Line Current Differential System 10-5...
Page 426: Description
If GPS is enabled at all terminals and the GPS signal is present, the L30 compensates for the channel asymmetry. On the loss of the GPS signal, the L30 stores the last measured value of the channel asymmetry per channel and compensates for the asymmetry until the GPS clock is available.
Page 427: Compensation Method 3
Create FlexLogic™ similar to that shown below to switch the 87L element to Settings Group 2 (with most sensitive set- tings) if the L30 has a valid GPS time reference. If a GPS or 87L communications failure occurs, the L30 will switch back to Settings Group 1 with less sensitive settings.
Page 428 Set the 87L element with different differential settings for Settings Groups 1 and 2 as shown below Enable GPS compensation when the GPS signal is valid and switch to Settings Group 2 (with more sensitive settings) as shown below. 10-8 L30 Line Current Differential System GE Multilin...
Page 429: Instantaneous Elements
10.4.1 INSTANTANEOUS ELEMENT ERROR DURING L30 SYNCHRONIZATION As explained in the Theory of Operation chapter, two or three L30 relays are synchronized to each other and to system fre- quency to provide digital differential protection and accurate measurements for other protection and control functions.
Page 430 10.4 INSTANTANEOUS ELEMENTS 10 APPLICATION OF SETTINGS 10-10 L30 Line Current Differential System GE Multilin...
Page 431: Commissioning
G.703, and RS422. The speed is 64 Kbaud in a transparent synchronous mode with automatic synchronous character detection and CRC insertion. The Local Loopback Channel Test verifies the L30 communication modules are working properly. The Remote Loopback –4 Channel Test verifies the communication link between the relays meets requirements (BER less than 10 ).
Page 432: Clock Synchronization Tests
“OK” ACTUAL VALUES STATUS CHANNEL TESTS CHANNEL 1(2) STATUS: “n/a” ACTUAL VALUES STATUS CHANNEL TESTS REMOTE LOOPBACK STATUS: “OK” ACTUAL VALUES STATUS CHANNEL TESTS PFLL STATUS: 11-2 L30 Line Current Differential System GE Multilin...
Page 433: Current Differential
Repeat the above tests for Phases B and C. • Restore the communication circuits to normal. Download the UR Test software from the GE Multilin website (http://www.GEindustrial.com/multilin) or contact GE Multilin for information about the UR current differential test program which allows the user to simulate different NOTE operating conditions for verifying correct responses of the relays during commissioning activities.
Page 434: Local-Remote Relay Tests
These phasors and differential currents can be monitored at the ACTUAL VAL- menu where all current magnitudes and angles can be observed and con- METERING 87L DIFFERENTIAL CURRENT clusions of proper relay interconnections can be made. 11-4 L30 Line Current Differential System GE Multilin...
Page 435: Parameter Lists
6236 SRC 2 I_1 Mag Degrees Source 2 positive-sequence current magnitude 6238 SRC 2 I_1 Angle Amps Source 2 positive-sequence current angle 6239 SRC 2 I_2 Mag Degrees Source 2 negative-sequence current magnitude GE Multilin L30 Line Current Differential System...
Page 436 SRC 2 Vbc Mag Volts Source 2 phase BC voltage magnitude 6746 SRC 2 Vbc Angle Degrees Source 2 phase BC voltage angle 6747 SRC 2 Vca Mag Volts Source 2 phase CA voltage magnitude L30 Line Current Differential System GE Multilin...
Page 437 Fault 1 pre-fault phase A current magnitude 9026 Prefault Ia Ang [0] Degrees Fault 1 pre-fault phase A current angle 9027 Prefault Ib Mag [0] Amps Fault 1 pre-fault phase B current magnitude GE Multilin L30 Line Current Differential System...
Page 438 Remote terminal 1 current phase A angle 9372 Terminal 1 IB Angle Degrees Remote terminal 1 current phase B angle 9373 Terminal 1 IC Angle Degrees Remote terminal 1 current phase C angle L30 Line Current Differential System GE Multilin...
Page 439 1 actual value 13506 DCMA Inputs 2 Value dcmA input 2 actual value 13508 DCMA Inputs 3 Value dcmA input 3 actual value 13510 DCMA Inputs 4 Value dcmA input 4 actual value GE Multilin L30 Line Current Differential System...
Page 440 RTD input 24 actual value 13576 RTD Inputs 25 Value RTD input 25 actual value 13577 RTD Inputs 26 Value RTD input 26 actual value 13578 RTD Inputs 27 Value RTD input 27 actual value L30 Line Current Differential System GE Multilin...
Page 441 45610 GOOSE Analog In 14 IEC 61850 GOOSE analog input 14 45612 GOOSE Analog In 15 IEC 61850 GOOSE analog input 15 45614 GOOSE Analog In 16 IEC 61850 GOOSE analog input 16 GE Multilin L30 Line Current Differential System...
Page 442: Flexinteger Items
IEC61850 GOOSE UInteger input 13 9994 GOOSE UInt Input 14 IEC61850 GOOSE UInteger input 14 9996 GOOSE UInt Input 15 IEC61850 GOOSE UInteger input 15 9998 GOOSE UInt Input 16 IEC61850 GOOSE UInteger input 16 L30 Line Current Differential System GE Multilin...
Page 443: Communications
Broadcast mode is only recognized when associated with function code 05h. For any other function code, a packet with broadcast mode slave address 0 will be ignored. GE Multilin L30 Line Current Differential System...
Page 444: Algorithm
No: go to 8; Yes: G (+) A --> A and continue. Is j = 8? No: go to 5; Yes: continue i + 1 --> i Is i = N? No: go to 3; Yes: continue A --> CRC L30 Line Current Differential System GE Multilin...
Page 445: Modbus Function Codes
125. See the Modbus memory map table for exact details on the data registers. Since some PLC implementations of Modbus only support one of function codes 03h and 04h. The L30 interpretation allows either function code to be used for reading one or more consecutive data registers.
Page 446: Execute Operation (Function Code 05H
DATA STARTING ADDRESS - low DATA STARTING ADDRESS - low DATA - high DATA - high DATA - low DATA - low CRC - low CRC - low CRC - high CRC - high L30 Line Current Differential System GE Multilin...
Page 447: Store Multiple Settings (Function Code 10H
PACKET FORMAT EXAMPLE (HEX) SLAVE ADDRESS SLAVE ADDRESS FUNCTION CODE FUNCTION CODE CRC - low order byte ERROR CODE CRC - high order byte CRC - low order byte CRC - high order byte GE Multilin L30 Line Current Differential System...
Page 448: File Transfers
Familiarity with the data logger feature is required to understand this description. Refer to the Data Logger section of Chap- ter 5 for details. To read the entire data logger in binary COMTRADE format, read the following files. L30 Line Current Differential System GE Multilin...
Page 449: Modbus Password Operation
When entering a settings or command password via EnerVista or any serial interface, the user must enter the correspond- ing connection password. If the connection is to the back of the L30, the remote password must be used. If the connection is to the RS232 port of the faceplate, the local password must be used.
Page 450 Command or setting password security access is restricted to the particular port or particular TCP/IP connection on which the entry was made. Passwords must be entered when accessing the relay through other ports or connections, and the passwords must be re-entered after disconnecting and re-connecting on TCP/IP. L30 Line Current Differential System GE Multilin...
Page 451: Memory Mapping
0419 Virtual Input 26 State 0 to 1 F108 0 (Off) 041A Virtual Input 27 State 0 to 1 F108 0 (Off) 041B Virtual Input 28 State 0 to 1 F108 0 (Off) GE Multilin L30 Line Current Differential System...
Page 452 0838 ...Repeated for Digital Counter 8 FlexStates (Read Only) 0900 FlexState Bits (16 items) 0 to 65535 F001 Element States (Read Only) 1000 Element Operate States (64 items) 0 to 65535 F502 B-10 L30 Line Current Differential System GE Multilin...
Page 453 Source 1 Phase A Current Magnitude 0 to 999999.999 0.001 F060 180A Source 1 Phase A Current Angle -359.9 to 0 degrees F002 180B Source 1 Phase B Current Magnitude 0 to 999999.999 0.001 F060 GE Multilin L30 Line Current Differential System B-11...
Page 454 1A2B Source 1 Negative Sequence Voltage Angle -359.9 to 0 degrees F002 1A2C Reserved (20 items) F001 1A40 ...Repeated for Source 2 1A80 ...Repeated for Source 3 1AC0 ...Repeated for Source 4 B-12 L30 Line Current Differential System GE Multilin...
Page 455 0 to 1 F126 0 (No) 2225 Breaker 2 Arcing Current Clear Command 0 to 1 F126 0 (No) Passwords Unauthorized Access (Read/Write Command) 2230 Reset Unauthorized Access 0 to 1 F126 0 (No) GE Multilin L30 Line Current Differential System B-13...
Page 456 0.001 F060 248C Terminal 2 IA Magnitude 0 to 999999.999 0.001 F060 248E Terminal 2 IB Magnitude 0 to 999999.999 0.001 F060 2490 Terminal 2 IC Magnitude 0 to 999999.999 0.001 F060 B-14 L30 Line Current Differential System GE Multilin...
Page 457 PMU 1 Phase B Current Angle -359.9 to 0 ° F002 255B PMU 1 Phase C Current Magnitude 0 to 999999.999 0.001 F060 255D PMU 1 Phase C Current Angle -359.9 to 0 ° F002 GE Multilin L30 Line Current Differential System B-15...
Page 458 0 to 4294967295 F003 26F4 IEC 61850 received uinteger 3 0 to 4294967295 F003 26F6 IEC 61850 received uinteger 4 0 to 4294967295 F003 26F8 IEC 61850 received uinteger 5 0 to 4294967295 F003 B-16 L30 Line Current Differential System GE Multilin...
Page 459 0 to 65535 F001 3203 Block of data from requested file (122 items) 0 to 65535 F001 Event recorder actual values (read only) 3400 Events Since Last Clear 0 to 4294967295 F003 GE Multilin L30 Line Current Differential System B-17...
Page 460 °C F002 3505 RTD Input 22 Value -32768 to 32767 °C F002 3506 RTD Input 23 Value -32768 to 32767 °C F002 3507 RTD Input 24 Value -32768 to 32767 °C F002 B-18 L30 Line Current Differential System GE Multilin...
Page 461 0.5 to 10 F001 4051 Default Message Timeout 10 to 900 F001 4052 Default Message Intensity 0 to 3 F101 0 (25%) 4053 Screen Saver Feature 0 to 1 F102 0 (Disabled) GE Multilin L30 Line Current Differential System B-19...
Page 462 1 to 65535 F001 20000 40A5 TCP Port Number for the HTTP (Web Server) Protocol 1 to 65535 F001 40A6 Main UDP Port Number for the TFTP Protocol 1 to 65535 F001 B-20 L30 Line Current Differential System GE Multilin...
Page 463 Ethernet switch Port 2 Events 0 to 1 F102 0 (Disabled) 414D Ethernet switch Port 3 Events 0 to 1 F102 0 (Disabled) 414E Ethernet switch Port 4 Events 0 to 1 F102 0 (Disabled) GE Multilin L30 Line Current Differential System B-21...
Page 464 Trip LED Input FlexLogic Operand 0 to 65535 F300 4261 Alarm LED Input FlexLogic Operand 0 to 65535 F300 User Programmable LEDs (Read/Write Setting) (48 modules) 4280 FlexLogic™ Operand to Activate LED 0 to 65535 F300 B-22 L30 Line Current Differential System GE Multilin...
Page 465 User Programmable Self Tests (Read/Write Setting) 4441 User Programmable Detect Ring Break Function 0 to 1 F102 1 (Enabled) 4442 User Programmable Direct Device Off Function 0 to 1 F102 1 (Enabled) GE Multilin L30 Line Current Differential System B-23...
Page 466 0 to 65535 F300 470A Breaker 1 external alarm 0 to 65535 F300 470B Breaker 1 alarm delay 0 to 1000000 0.001 F003 470D Breaker 1 pushbutton control 0 to 1 F102 0 (Disabled) B-24 L30 Line Current Differential System GE Multilin...
Page 467 ...Repeated for User-Definable Display 10 4D40 ...Repeated for User-Definable Display 11 4D60 ...Repeated for User-Definable Display 12 4D80 ...Repeated for User-Definable Display 13 4DA0 ...Repeated for User-Definable Display 14 4DC0 ...Repeated for User-Definable Display 15 GE Multilin L30 Line Current Differential System B-25...
Page 468 ...Repeated for RTD Input 16 5530 ...Repeated for RTD Input 17 5543 ...Repeated for RTD Input 18 5556 ...Repeated for RTD Input 19 5569 ...Repeated for RTD Input 20 557C ...Repeated for RTD Input 21 B-26 L30 Line Current Differential System GE Multilin...
Page 469 ...Repeated for FlexLogic™ Timer 18 5890 ...Repeated for FlexLogic™ Timer 19 5898 ...Repeated for FlexLogic™ Timer 20 58A0 ...Repeated for FlexLogic™ Timer 21 58A8 ...Repeated for FlexLogic™ Timer 22 58B0 ...Repeated for FlexLogic™ Timer 23 GE Multilin L30 Line Current Differential System B-27...
Page 470 0 to 1 F102 0 (Disabled) 5B01 Neutral Time Overcurrent 1 Signal Source 0 to 5 F167 0 (SRC 1) 5B02 Neutral Time Overcurrent 1 Input 0 to 1 F122 0 (Phasor) B-28 L30 Line Current Differential System GE Multilin...
Page 471 Ground Instantaneous Overcurrent (Read/Write Grouped Setting) (12 modules) 5E00 Ground Instantaneous Overcurrent 1 Signal Source 0 to 5 F167 0 (SRC 1) 5E01 Ground Instantaneous Overcurrent 1 Function 0 to 1 F102 0 (Disabled) GE Multilin L30 Line Current Differential System B-29...
Page 472 87L Current Differential Phase Percent Restraint 1 1 to 50 F001 6006 87L Current Differential Phase Percent Restraint 2 1 to 70 F001 6007 87L Current Differential Phase Dual Slope Breakpoint 0 to 20 F001 B-30 L30 Line Current Differential System GE Multilin...
Page 473 Reserved (4 items) 0 to 0.001 0.001 F001 625E ...Repeated for Autoreclose 2 627C ...Repeated for Autoreclose 3 629A ...Repeated for Autoreclose 4 62B8 ...Repeated for Autoreclose 5 62D6 ...Repeated for Autoreclose 6 GE Multilin L30 Line Current Differential System B-31...
Page 474 F001 7045 Phase Overvoltage 1 Block 0 to 65535 F300 7046 Phase Overvoltage 1 Target 0 to 2 F109 0 (Self-reset) 7047 Phase Overvoltage 1 Events 0 to 1 F102 0 (Disabled) B-32 L30 Line Current Differential System GE Multilin...
Page 475 0 to 1 F157 0 (3-Pole) 7545 Disconnect switch 1 open 0 to 65535 F300 7546 Disconnect switch 1 block open 0 to 65535 F300 7547 Disconnect switch 1 close 0 to 65535 F300 GE Multilin L30 Line Current Differential System B-33...
Page 476 ...Repeated for User Programmable Pushbutton 8 7CB8 ...Repeated for User Programmable Pushbutton 9 7CE3 ...Repeated for User Programmable Pushbutton 10 7D0E ...Repeated for User Programmable Pushbutton 11 7D39 ...Repeated for User Programmable Pushbutton 12 B-34 L30 Line Current Differential System GE Multilin...
Page 477 Breaker Failure 1 Amp Supervision 0 to 1 F126 1 (Yes) 8604 Breaker Failure 1 Use Seal-In 0 to 1 F126 1 (Yes) 8605 Breaker Failure 1 Three Pole Initiate 0 to 65535 F300 GE Multilin L30 Line Current Differential System B-35...
Page 478 ...Repeated for Digital Element 5 8A64 ...Repeated for Digital Element 6 8A78 ...Repeated for Digital Element 7 8A8C ...Repeated for Digital Element 8 8AA0 ...Repeated for Digital Element 9 8AB4 ...Repeated for Digital Element 10 B-36 L30 Line Current Differential System GE Multilin...
Page 479 0 to 65535 F300 8E0C Trip Bus 1 Input 9 0 to 65535 F300 8E0D Trip Bus 1 Input 10 0 to 65535 F300 8E0E Trip Bus 1 Input 11 0 to 65535 F300 GE Multilin L30 Line Current Differential System B-37...
Page 480 0.01 F001 9208 Fault Report 1 System Z0 Angle 25 to 90 degrees F001 920B ...Repeated for Fault Report 2 9216 ...Repeated for Fault Report 3 9221 ...Repeated for Fault Report 4 B-38 L30 Line Current Differential System GE Multilin...
Page 481 -2147483.647 to 2147483.647 0.001 F004 9A07 FlexElement™ 4 Actual -2147483.647 to 2147483.647 0.001 F004 9A09 FlexElement™ 5 Actual -2147483.647 to 2147483.647 0.001 F004 9A0B FlexElement™ 6 Actual -2147483.647 to 2147483.647 0.001 F004 GE Multilin L30 Line Current Differential System B-39...
Page 482 ...Repeated for Non-Volatile Latch 7 A746 ...Repeated for Non-Volatile Latch 8 A750 ...Repeated for Non-Volatile Latch 9 A75A ...Repeated for Non-Volatile Latch 10 A764 ...Repeated for Non-Volatile Latch 11 A76E ...Repeated for Non-Volatile Latch 12 B-40 L30 Line Current Differential System GE Multilin...
Page 483 Operand for IEC 61850 XCBR3.ST.Loc status 0 to 65535 F300 AB29 Command to clear XCBR3 OpCnt (operation counter) 0 to 1 F126 0 (No) AB2A Operand for IEC 61850 XCBR4.ST.Loc status 0 to 65535 F300 GE Multilin L30 Line Current Differential System B-41...
Page 484 IEC 61850 GGIO4 general analog configuration settings (read/write) AF00 Number of analog points in GGIO4 4 to 32 F001 IEC 61850 GGIO4 analog input points configuration settings (read/write) AF10 IEC 61850 GGIO4 analog input 1 value F600 B-42 L30 Line Current Differential System GE Multilin...
Page 485 F206 (None) AD4F IEC 61850 Logical Node MMXNx Name Prefix (37 items) 0 to 65534 F206 (None) IEC 61850 GOOSE/GSSE Configuration (Read/Write Setting) B01C Default GOOSE/GSSE Update Time 1 to 60 F001 GE Multilin L30 Line Current Differential System B-43...
Page 486 B1CE ...Repeated for Deadband 6 IEC 61850 Report Settings (Read/Write Setting) (14 modules) B280 IEC 61850 Report Control 1 RptID F209 B2A1 IEC 61850 Report Control 1 OptFlds 0 to 65535 F001 B-44 L30 Line Current Differential System GE Multilin...
Page 487 Contact Input 1 Events 0 to 1 F102 0 (Disabled) BB07 Contact Input 1 Debounce Time 0 to 16 F001 BB08 ...Repeated for Contact Input 2 BB10 ...Repeated for Contact Input 3 GE Multilin L30 Line Current Differential System B-45...
Page 488 ...Repeated for Contact Input 52 BCA0 ...Repeated for Contact Input 53 BCA8 ...Repeated for Contact Input 54 BCB0 ...Repeated for Contact Input 55 BCB8 ...Repeated for Contact Input 56 BCC0 ...Repeated for Contact Input 57 B-46 L30 Line Current Differential System GE Multilin...
Page 489 ...Repeated for Virtual Input 3 BE54 ...Repeated for Virtual Input 4 BE60 ...Repeated for Virtual Input 5 BE6C ...Repeated for Virtual Input 6 BE78 ...Repeated for Virtual Input 7 BE84 ...Repeated for Virtual Input 8 GE Multilin L30 Line Current Differential System B-47...
Page 490 ...Repeated for Virtual Input 57 C0DC ...Repeated for Virtual Input 58 C0E8 ...Repeated for Virtual Input 59 C0F4 ...Repeated for Virtual Input 60 C100 ...Repeated for Virtual Input 61 C10C ...Repeated for Virtual Input 62 B-48 L30 Line Current Differential System GE Multilin...
Page 491 ...Repeated for Virtual Output 44 C290 ...Repeated for Virtual Output 45 C298 ...Repeated for Virtual Output 46 C2A0 ...Repeated for Virtual Output 47 C2A8 ...Repeated for Virtual Output 48 C2B0 ...Repeated for Virtual Output 49 GE Multilin L30 Line Current Differential System B-49...
Page 492 Force VFD and LED 0 to 1 F126 0 (No) C432 Test Mode Forcing 0 to 65535 F300 Clear commands (read/write) C433 Clear All Relay Records Command 0 to 1 F126 0 (No) B-50 L30 Line Current Differential System GE Multilin...
Page 493 ...Repeated for Contact Output 40 C620 ...Repeated for Contact Output 41 C62C ...Repeated for Contact Output 42 C638 ...Repeated for Contact Output 43 C644 ...Repeated for Contact Output 44 C650 ...Repeated for Contact Output 45 GE Multilin L30 Line Current Differential System B-51...
Page 494 0 (NO TEST) Direct Input/Output Settings (Read/Write Setting) C850 Direct Input Default States (8 items) 0 to 1 F108 0 (Off) C858 Direct Input Default States (8 items) 0 to 1 F108 0 (Off) B-52 L30 Line Current Differential System GE Multilin...
Page 495 ...Repeated for Remote Input 22 D07C ...Repeated for Remote Input 23 D086 ...Repeated for Remote Input 24 D090 ...Repeated for Remote Input 25 D09A ...Repeated for Remote Input 26 D0A4 ...Repeated for Remote Input 27 GE Multilin L30 Line Current Differential System B-53...
Page 496 ...Repeated for Remote Output 6 D2B8 ...Repeated for Remote Output 7 D2BC ...Repeated for Remote Output 8 D2C0 ...Repeated for Remote Output 9 D2C4 ...Repeated for Remote Output 10 D2C8 ...Repeated for Remote Output 11 B-54 L30 Line Current Differential System GE Multilin...
Page 497 IEC 61850 GGIO2.CF.SPCSO29.ctlModel Value 0 to 2 F001 D33D IEC 61850 GGIO2.CF.SPCSO30.ctlModel Value 0 to 2 F001 D33E IEC 61850 GGIO2.CF.SPCSO31.ctlModel Value 0 to 2 F001 D33F IEC 61850 GGIO2.CF.SPCSO32.ctlModel Value 0 to 2 F001 GE Multilin L30 Line Current Differential System B-55...
Page 498 ...Repeated for Remote Device 16 D3C0 ...Repeated for Remote Device 17 D3C4 ...Repeated for Remote Device 18 D3C8 ...Repeated for Remote Device 19 D3CC ...Repeated for Remote Device 20 D3D0 ...Repeated for Remote Device 21 B-56 L30 Line Current Differential System GE Multilin...
Page 499 F300 E5B8 PMU 1 Record D-CH-x Name (16 items) F203 Dig Channel 1 Phasor Measurement Unit Network Reporting Configuration (Read/Write Setting) EA4C PMU Network Reporting Function 0 to 1 F102 0 (Disabled) GE Multilin L30 Line Current Differential System B-57...
Page 500 PMU 1 Frequency Trigger Block (3 items) 0 to 65535 F300 EB08 PMU 1 Frequency Trigger Target 0 to 2 F109 0 (Self-reset) EB09 PMU 1 Frequency Trigger Events 0 to 1 F102 0 (Disabled) B-58 L30 Line Current Differential System GE Multilin...
Page 501 ED00 FlexLogic™ displays active 0 to 1 F102 1 (Enabled) ED01 Reserved (6 items) ED07 Last settings change date 0 to 4294967295 F050 ED09 Template bitmask (750 items) 0 to 65535 F001 GE Multilin L30 Line Current Differential System B-59...
Page 502: Data Formats
UR_UINT32 TIME in SR format (alternate format for F050) value is stored. First 16 bits are Hours/Minutes (HH:MM:xx.xxx). Hours: 0=12am, 1=1am,...,12=12pm,...23=11pm; Minutes: 0 to 59 in steps of 1 Last bits Seconds (xx:xx:.SS.SSS): 0=00.000s, 1=00.001,...,59999=59.999s) B-60 L30 Line Current Differential System GE Multilin...
Page 503 0 = Wye; 1 = Delta F111 ENUMERATION: UNDERVOLTAGE CURVE SHAPES F101 0 = Definite Time, 1 = Inverse Time ENUMERATION: MESSAGE DISPLAY INTENSITY 0 = 25%, 1 = 50%, 2 = 75%, 3 = 100% GE Multilin L30 Line Current Differential System B-61...
Page 504 0 = 1 A, 1 = 5 A F124 ENUMERATION: LIST OF ELEMENTS bitmask element Phase Instantaneous Overcurrent 1 Phase Instantaneous Overcurrent 2 Phase Instantaneous Overcurrent 3 Phase Instantaneous Overcurrent 4 Phase Instantaneous Overcurrent 5 B-62 L30 Line Current Differential System GE Multilin...
Page 505 Digital Element 1 Stub Bus Digital Element 2 Breaker Failure 1 Digital Element 3 Breaker Failure 2 Digital Element 4 Breaker Arcing Current 1 Digital Element 5 Breaker Arcing Current 2 Digital Element 6 GE Multilin L30 Line Current Differential System B-63...
Page 506 RTD Input 47 Trip Bus 1 RTD Input 48 Trip Bus 2 User-Programmable Pushbutton 1 Trip Bus 3 User-Programmable Pushbutton 2 Trip Bus 4 User-Programmable Pushbutton 3 Trip Bus 5 User-Programmable Pushbutton 4 B-64 L30 Line Current Differential System GE Multilin...
Page 507 3 = Current 4.6 A, 4 = Current 2 A, 5 = Notched 4.6 A, 6 = Notched 2 A F128 ENUMERATION: CONTACT INPUT THRESHOLD 0 = 17 V DC, 1 = 33 V DC, 2 = 84 V DC, 3 = 166 V DC GE Multilin L30 Line Current Differential System B-65...
Page 508 Module Failure 05 Led Test Initiated Module Failure 06 Flash Programming Module Failure 07 Fault Report Trigger Module Failure 08 User Programmable Fault Report Trigger Module Failure 09 Incompatible Hardware Reload CT/VT module Settings B-66 L30 Line Current Differential System GE Multilin...
Page 509 0 = Active Group, 1 = Group 1, 2 = Group 2, 3 = Group 3 4 = Group 4, 5 = Group 5, 6 = Group 6 ABCG F155 ENUMERATION: REMOTE DEVICE STATE 0 = Offline, 1 = Online GE Multilin L30 Line Current Differential System B-67...
Page 510 0 = 100 Ohm Platinum, 1 = 120 Ohm Nickel, 2 = 100 Ohm Nickel, 3 = 10 Ohm Copper F159 ENUMERATION: BREAKER AUX CONTACT KEYING 0 = 52a, 1 = 52b, 2 = None B-68 L30 Line Current Differential System GE Multilin...
Page 511 User-programmable key 14 64 samples/cycle Message Left User-programmable key 15 Message Right User-programmable key 16 Menu User 4 (control pushbutton) Help User 5 (control pushbutton) Escape User 6 (control pushbutton) User 7 (control pushbutton) GE Multilin L30 Line Current Differential System B-69...
Page 512 ENUMERATION: SOURCE SELECTION MMXU1.MX.PPV.phsBC.cVal.mag.f 0 = None, 1 = SRC 1, 2 = SRC 2, 3 = SRC 3, 4 = SRC 4, MMXU1.MX.PPV.phsBC.cVal.ang.f 5 = SRC 5, 6 = SRC 6 MMXU1.MX.PPV.phsCA.cVal.mag.f B-70 L30 Line Current Differential System GE Multilin...
Page 513 MMXU2.MX.PPV.phsCA.cVal.ang.f MMXU3.MX.W.phsB.cVal.mag.f MMXU2.MX.PhV.phsA.cVal.mag.f MMXU3.MX.W.phsC.cVal.mag.f MMXU2.MX.PhV.phsA.cVal.ang.f MMXU3.MX.VAr.phsA.cVal.mag.f MMXU2.MX.PhV.phsB.cVal.mag.f MMXU3.MX.VAr.phsB.cVal.mag.f MMXU2.MX.PhV.phsB.cVal.ang.f MMXU3.MX.VAr.phsC.cVal.mag.f MMXU2.MX.PhV.phsC.cVal.mag.f MMXU3.MX.VA.phsA.cVal.mag.f MMXU2.MX.PhV.phsC.cVal.ang.f MMXU3.MX.VA.phsB.cVal.mag.f MMXU2.MX.A.phsA.cVal.mag.f MMXU3.MX.VA.phsC.cVal.mag.f MMXU2.MX.A.phsA.cVal.ang.f MMXU3.MX.PF.phsA.cVal.mag.f MMXU2.MX.A.phsB.cVal.mag.f MMXU3.MX.PF.phsB.cVal.mag.f MMXU2.MX.A.phsB.cVal.ang.f MMXU3.MX.PF.phsC.cVal.mag.f MMXU2.MX.A.phsC.cVal.mag.f MMXU4.MX.TotW.mag.f MMXU2.MX.A.phsC.cVal.ang.f MMXU4.MX.TotVAr.mag.f MMXU2.MX.A.neut.cVal.mag.f MMXU4.MX.TotVA.mag.f MMXU2.MX.A.neut.cVal.ang.f MMXU4.MX.TotPF.mag.f MMXU2.MX.W.phsA.cVal.mag.f MMXU4.MX.Hz.mag.f GE Multilin L30 Line Current Differential System B-71...
Page 514 MMXU5.MX.PPV.phsAB.cVal.mag.f MMXU6.MX.A.phsC.cVal.mag.f MMXU5.MX.PPV.phsAB.cVal.ang.f MMXU6.MX.A.phsC.cVal.ang.f MMXU5.MX.PPV.phsBC.cVal.mag.f MMXU6.MX.A.neut.cVal.mag.f MMXU5.MX.PPV.phsBC.cVal.ang.f MMXU6.MX.A.neut.cVal.ang.f MMXU5.MX.PPV.phsCA.cVal.mag.f MMXU6.MX.W.phsA.cVal.mag.f MMXU5.MX.PPV.phsCA.cVal.ang.f MMXU6.MX.W.phsB.cVal.mag.f MMXU5.MX.PhV.phsA.cVal.mag.f MMXU6.MX.W.phsC.cVal.mag.f MMXU5.MX.PhV.phsA.cVal.ang.f MMXU6.MX.VAr.phsA.cVal.mag.f MMXU5.MX.PhV.phsB.cVal.mag.f MMXU6.MX.VAr.phsB.cVal.mag.f MMXU5.MX.PhV.phsB.cVal.ang.f MMXU6.MX.VAr.phsC.cVal.mag.f MMXU5.MX.PhV.phsC.cVal.mag.f MMXU6.MX.VA.phsA.cVal.mag.f MMXU5.MX.PhV.phsC.cVal.ang.f MMXU6.MX.VA.phsB.cVal.mag.f MMXU5.MX.A.phsA.cVal.mag.f MMXU6.MX.VA.phsC.cVal.mag.f MMXU5.MX.A.phsA.cVal.ang.f MMXU6.MX.PF.phsA.cVal.mag.f MMXU5.MX.A.phsB.cVal.mag.f MMXU6.MX.PF.phsB.cVal.mag.f MMXU5.MX.A.phsB.cVal.ang.f MMXU6.MX.PF.phsC.cVal.mag.f B-72 L30 Line Current Differential System GE Multilin...
Page 515 GGIO3.MX.AnIn13.mag.f GGIO5.ST.UIntIn3.stVal GGIO3.MX.AnIn14.mag.f GGIO5.ST.UIntIn4.q GGIO3.MX.AnIn15.mag.f GGIO5.ST.UIntIn4.stVal GGIO3.MX.AnIn16.mag.f GGIO5.ST.UIntIn5.q GGIO3.MX.AnIn17.mag.f GGIO5.ST.UIntIn5.stVal GGIO3.MX.AnIn18.mag.f GGIO5.ST.UIntIn6.q GGIO3.MX.AnIn19.mag.f GGIO5.ST.UIntIn6.stVal GGIO3.MX.AnIn20.mag.f GGIO5.ST.UIntIn7.q GGIO3.MX.AnIn21.mag.f GGIO5.ST.UIntIn7.stVal GGIO3.MX.AnIn22.mag.f GGIO5.ST.UIntIn8.q GGIO3.MX.AnIn23.mag.f GGIO5.ST.UIntIn8.stVal GGIO3.MX.AnIn24.mag.f GGIO5.ST.UIntIn9.q GGIO3.MX.AnIn25.mag.f GGIO5.ST.UIntIn9.stVal GGIO3.MX.AnIn26.mag.f GGIO5.ST.UIntIn10.q GGIO3.MX.AnIn27.mag.f GGIO5.ST.UIntIn10.stVal GGIO3.MX.AnIn28.mag.f GGIO5.ST.UIntIn11.q GE Multilin L30 Line Current Differential System B-73...
Page 516 GGIO3.ST.UIntIn16.stVal ENUMERATION: DATA LOGGER MODE 0 = Continuous, 1 = Trigger F237 ENUMERATION: REAL TIME CLOCK MONTH F270 ENUMERATION: FAULT REPORT VT SUBSTITUTION value month January Value Description February None March April B-74 L30 Line Current Differential System GE Multilin...
Page 517 0 = Count Greater Than, 1 = Count Equal To, 2 = Count Less Than ENUMERATION: ANALOG INPUT MODE 0 = Default Value, 1 = Last Known F509 BITFIELD: SIMPLE ELEMENT STATE 0 = Operate GE Multilin L30 Line Current Differential System B-75...
Page 518 Escape User 3 User 5 Message User PB 1 User 6 Right User PB 2 User 7 F531 ENUMERATION: LANGUAGE 0 = English, 1 = French, 2 = Chinese, 3 = Russian B-76 L30 Line Current Differential System GE Multilin...
Page 519 FlexInteger paramter. Only certain values may be used F546 as FlexIntegers. ENUMERATION: PMU REPORTING STYLE 0 = Polar, 1 = Rectangular F547 ENUMERATION: PMU REPORTING FORMAT 0 = Integer, 1 = Floating GE Multilin L30 Line Current Differential System B-77...
Page 520 B.4 MEMORY MAPPING APPENDIX B B-78 L30 Line Current Differential System GE Multilin...
Page 521: Iec 61850
The L30 relay supports IEC 61850 server services over both TCP/IP and TP4/CLNP (OSI) communication protocol stacks. The TP4/CLNP profile requires the L30 to have a network address or Network Service Access Point (NSAP) to establish a communication link. The TCP/IP profile requires the L30 to have an IP address to establish communications. These addresses are located in the menu.
Page 522: Server Data Organization
C.2.2 GGIO1: DIGITAL STATUS VALUES The GGIO1 logical node is available in the L30 to provide access to as many 128 digital status points and associated time- stamps and quality flags. The data content must be configured before the data can be used. GGIO1 provides digital status points for access by clients.
Page 523: Mmxu: Analog Measured Values
A limited number of measured analog values are available through the MMXU logical nodes. Each MMXU logical node provides data from a L30 current and voltage source. There is one MMXU available for each con- figurable source (programmed in the menu).
Page 524 The protection elements listed above contain start (pickup) and operate flags. For example, the start flag for PIOC1 is PIOC1.ST.Str.general. The operate flag for PIOC1 is PIOC1.ST.Op.general. For the L30 protection elements, these flags take their values from the pickup and operate FlexLogic™ operands for the corresponding element.
Page 525: Server Features And Configuration
C.3.4 LOGICAL DEVICE NAME The logical device name is used to identify the IEC 61850 logical device that exists within the L30. This name is composed of two parts: the IED name setting and the logical device instance. The complete logical device name is the combination of settings.
Page 526: Logical Node Name Prefixes
A built-in TCP/IP connection timeout of two minutes is employed by the L30 to detect ‘dead’ connections. If there is no data traffic on a TCP connection for greater than two minutes, the connection will be aborted by the L30. This frees up the con- nection to be used by other clients.
Page 527: Generic Substation Event Services: Gsse And Goose
MAC address for GSSE messages. If GSSE DESTINATION MAC ADDRESS a valid multicast Ethernet MAC address is not entered (for example, 00 00 00 00 00 00), the L30 will use the source Ether- net MAC address as the destination, with the multicast bit set.
Page 528 The L30 has the ability of detecting if a data item in one of the GOOSE datasets is erroneously oscillating. This can be caused by events such as errors in logic programming, inputs improperly being asserted and de-asserted, or failed station components.
Page 529: Ethernet Mac Address For Gsse/Goose
REMOTE IN 1 ITEM item to remote input 1. Remote input 1 can now be used in FlexLogic™ equations or other settings. The L30 must be rebooted (control power removed and re-applied) before these settings take effect. The value of remote input 1 (Boolean on or off) in the receiving device will be determined by the GGIO1.ST.Ind1.stVal value in the sending device.
Page 530: Gsse Id And Goose Id Settings
GSSE and GOOSE messages must have multicast destination MAC addresses. By default, the L30 is configured to use an automated multicast MAC scheme. If the L30 destination MAC address setting is not a valid multicast address (that is, the least significant bit of the first byte is not set), the address used as the destina- tion MAC will be the same as the local MAC address, but with the multicast bit set.
Page 531: Overview
An ICD file is generated for the L30 by the EnerVista UR Setup software that describe the capabilities of the IED. The ICD file is then imported into a system configurator along with other ICD files for other IEDs (from GE or other ven- dors) for system configuration.
Page 532: Configuring Iec 61850 Settings
Transmission GOOSE dataset may be added or deleted, or prefixes of some logical nodes may be changed. While all new configurations will be mapped to the L30 settings file when importing an SCD file, all unchanged settings will preserve the same values in the new settings file.
Page 533: About Icd Files
Although configurable transmission GOOSE can also be created and altered by some third-party system con- figurators, we recommend configuring transmission GOOSE for GE Multilin IEDs before creating the ICD, and strictly within EnerVista UR Setup software or the front panel display (access through the Settings > Product Setup > Com- munications >...
Page 534 Furthermore, it defines the capabilities of an IED in terms of communication services offered and, together with its LNType, instantiated data (DO) and its default or configuration values. There should be only one IED section in an ICD since it only describes one IED. C-14 L30 Line Current Differential System GE Multilin...
Page 535 Other ReportControl elements DOI (name) SDI (name) DAI (name) Text Other DOI elements SDI (name) DAI (name) Text Other LN elements Other LDevice elements 842797A1.CDR Figure 0–4: ICD FILE STRUCTURE, IED NODE GE Multilin L30 Line Current Differential System C-15...
Page 536 BDA (name, bType, type) Other BDA elements Other BDA elements Other DAType elements Other DAType elements EnumType (id) Text EnumVal (ord) Other EnumVal elements Other EnumType elements 842798A1.CDR Figure 0–5: ICD FILE STRUCTURE, DATATYPETEMPLATES NODE C-16 L30 Line Current Differential System GE Multilin...
Page 537: Creating An Icd File With Enervista Ur Setup
The EnerVista UR Setup will prompt to save the file. Select the file path and enter the name for the ICD file, then click OK to generate the file. The time to create an ICD file from the offline L30 settings file is typically much quicker than create an ICD file directly from the relay.
Page 538 Like ICD files, the Header node identifies the SCD file and its version, and specifies options for the mapping of names to signals. The Substation node describes the substation parameters: Substation PowerSystemResource EquipmentContainer Power Transformer GeneralEquipment EquipmentContainer VoltageLevel Voltage PowerSystemResource Function SubFunction GeneralEquipment 842792A1.CDR Figure 0–7: SCD FILE STRUCTURE, SUBSTATION NODE C-18 L30 Line Current Differential System GE Multilin...
Page 539 IdInst is the instance identification of the logical device within the IED on which the control block is located, and cbName is the name of the control block. GE Multilin L30 Line Current Differential System C-19...
Page 540: Importing An Scd File With Enervista Ur Setup
Figure 0–9: SCD FILE STRUCTURE, IED NODE C.5.6 IMPORTING AN SCD FILE WITH ENERVISTA UR SETUP The following procedure describes how to update the L30 with the new configuration from an SCD file with the EnerVista UR Setup software. Right-click anywhere in the files panel and select the Import Contents From SCD File item.
Page 541 The software will open the SCD file and then prompt the user to save a UR-series settings file. Select a location and name for the URS (UR-series relay settings) file. If there is more than one GE Multilin IED defined in the SCD file, the software prompt the user to save a UR-series set- tings file for each IED.
Page 542: Acsi Conformance
REPORTING Buffered report control M7-1 sequence-number M7-2 report-time-stamp M7-3 reason-for-inclusion M7-4 data-set-name M7-5 data-reference M7-6 buffer-overflow M7-7 entryID M7-8 BufTm M7-9 IntgPd M7-10 Unbuffered report control M8-1 sequence-number M8-2 report-time-stamp M8-3 reason-for-inclusion C-22 L30 Line Current Differential System GE Multilin...
Page 543: Acsi Services Conformance Statement
UR FAMILY PUBLISHER SERVER (CLAUSE 6) ServerDirectory APPLICATION ASSOCIATION (CLAUSE 7) Associate Abort Release LOGICAL DEVICE (CLAUSE 8) LogicalDeviceDirectory LOGICAL NODE (CLAUSE 9) LogicalNodeDirectory GetAllDataValues DATA (CLAUSE 10) GetDataValues SetDataValues GetDataDirectory GetDataDefinition GE Multilin L30 Line Current Differential System C-23...
Page 544 S27-3 data-update (dupd) GetURCBValues SetURCBValues LOGGING (CLAUSE 14) LOG CONTROL BLOCK GetLCBValues SetLCBValues QueryLogByTime QueryLogByEntry GetLogStatusValues GENERIC SUBSTATION EVENT MODEL (GSE) (CLAUSE 14.3.5.3.4) GOOSE-CONTROL-BLOCK SendGOOSEMessage GetReference GetGOOSEElementNumber GetGoCBValues SetGoCBValues GSSE-CONTROL-BLOCK SendGSSEMessage GetReference C-24 L30 Line Current Differential System GE Multilin...
Page 545 NOTE c8: shall declare support for at least one (SendGOOSEMessage or SendGSSEMessage) c9: shall declare support if TP association is available c10: shall declare support for at least one (SendMSVMessage or SendUSVMessage) GE Multilin L30 Line Current Differential System C-25...
Page 546: Logical Nodes
RDRE: Disturbance recorder function RADR: Disturbance recorder channel analogue RBDR: Disturbance recorder channel binary RDRS: Disturbance record handling RBRF: Breaker failure RDIR: Directional element RFLO: Fault locator RPSB: Power swing detection/blocking RREC: Autoreclosing C-26 L30 Line Current Differential System GE Multilin...
Page 547 T: LOGICAL NODES FOR INSTRUMENT TRANSFORMERS TCTR: Current transformer TVTR: Voltage transformer Y: LOGICAL NODES FOR POWER TRANSFORMERS YEFN: Earth fault neutralizer (Peterson coil) YLTC: Tap changer YPSH: Power shunt YPTR: Power transformer GE Multilin L30 Line Current Differential System C-27...
Page 548 ZCON: Converter ZGEN: Generator ZGIL: Gas insulated line ZLIN: Power overhead line ZMOT: Motor ZREA: Reactor ZRRC: Rotating reactive component ZSAR: Surge arrestor ZTCF: Thyristor controlled frequency converter ZTRC: Thyristor controlled reactive component C-28 L30 Line Current Differential System GE Multilin...
Page 549: Iec 60870-5-104
Address Field of the Link: Balanced Transmision Not Present (Balanced Transmission Only) Unbalanced Transmission One Octet Two Octets Structured Unstructured Frame Length (maximum length, number of octets): Not selectable in companion IEC 60870-5-104 standard GE Multilin L30 Line Current Differential System...
Page 550 <18> := Packed start events of protection equipment with time tag M_EP_TB_1 <19> := Packed output circuit information of protection equipment with time tag M_EP_TC_1 <20> := Packed single-point information with status change detection M_SP_NA_1 L30 Line Current Differential System GE Multilin...
Page 551 <103> := Clock synchronization command (see Clause 7.6 in standard) C_CS_NA_1 <104> := Test command C_TS_NA_1 <105> := Reset process command C_RP_NA_1 <106> := Delay acquisition command C_CD_NA_1 <107> := Test command with time tag CP56Time2a C_TS_TA_1 GE Multilin L30 Line Current Differential System...
Page 552 •Blank boxes indicate functions or ASDU not used. •‘X’ if only used in the standard direction TYPE IDENTIFICATION CAUSE OF TRANSMISSION MNEMONIC <1> M_SP_NA_1 <2> M_SP_TA_1 <3> M_DP_NA_1 <4> M_DP_TA_1 <5> M_ST_NA_1 <6> M_ST_TA_1 <7> M_BO_NA_1 <8> M_BO_TA_1 <9> M_ME_NA_1 L30 Line Current Differential System GE Multilin...
Page 553 M_ME_TD_1 <35> M_ME_TE_1 <36> M_ME_TF_1 <37> M_IT_TB_1 <38> M_EP_TD_1 <39> M_EP_TE_1 <40> M_EP_TF_1 <45> C_SC_NA_1 <46> C_DC_NA_1 <47> C_RC_NA_1 <48> C_SE_NA_1 <49> C_SE_NB_1 <50> C_SE_NC_1 <51> C_BO_NA_1 <58> C_SC_TA_1 <59> C_DC_TA_1 <60> C_RC_TA_1 GE Multilin L30 Line Current Differential System...
Page 554 <113> P_AC_NA_1 <120> F_FR_NA_1 <121> F_SR_NA_1 <122> F_SC_NA_1 <123> F_LS_NA_1 <124> F_AF_NA_1 <125> F_SG_NA_1 <126> F_DR_TA_1*) BASIC APPLICATION FUNCTIONS Station Initialization: Remote initialization Cyclic Data Transmission: Cyclic data transmission Read Procedure: Read procedure L30 Line Current Differential System GE Multilin...
Page 555 Mode A: Local freeze with spontaneous transmission Mode B: Local freeze with counter interrogation Mode C: Freeze and transmit by counter-interrogation commands Mode D: Freeze by counter-interrogation command, frozen values reported simultaneously Counter read Counter freeze without reset GE Multilin L30 Line Current Differential System...
Page 556 Maximum number of outstanding I-format APDUs k and latest acknowledge APDUs (w): PARAMETER DEFAULT REMARKS SELECTED VALUE VALUE 12 APDUs Maximum difference receive sequence number to send state variable 12 APDUs 8 APDUs 8 APDUs Latest acknowledge after receiving I-format APDUs L30 Line Current Differential System GE Multilin...
Page 557: Point List
D.1.2 POINT LIST The IEC 60870-5-104 data points are configured through the SETTINGS PRODUCT SETUP COMMUNICATIONS DNP / menu. Refer to the Communications section of Chapter 5 for additional details. IEC104 POINT LISTS GE Multilin L30 Line Current Differential System...
Page 558 D.1 IEC 60870-5-104 APPENDIX D D-10 L30 Line Current Differential System GE Multilin...
Page 559: Dnp Communications
Transmitted: 292 Transmitted: configurable up to 2048 Received: Received: 2048 Maximum Data Link Re-tries: Maximum Application Layer Re-tries: None None Fixed at 3 Configurable Configurable Requires Data Link Layer Confirmation: Never Always Sometimes Configurable GE Multilin L30 Line Current Differential System...
Page 560 FlexLogic™. The On/Off times and Count value are ignored. “Pulse Off” and “Latch Off” operations put the appropriate Virtual Input into the “Off” state. “Trip” and “Close” operations both put the appropriate Virtual Input into the “On” state. L30 Line Current Differential System GE Multilin...
Page 561 Configurable (attach explanation) Configurable (attach explanation) Default Object: 16 Bits (Counter 8) Default Variation: 1 32 Bits (Counters 0 to 7, 9) Point-by-point list attached Other Value: _____ Point-by-point list attached Sends Multi-Fragment Responses: GE Multilin L30 Line Current Differential System...
Page 562: E.1.2 Implementation Table
Otherwise, static object requests sent with qualifiers 00, 01, 06, 07, or 08, will be responded with qualifiers 00 or 01 (for change- event objects, qualifiers 17 or 28 are always responded.) Note 3: Cold restarts are implemented the same as warm restarts – the L30 is not restarted, but the DNP process is restarted. L30 Line Current Differential System GE Multilin...
Page 563 Otherwise, static object requests sent with qualifiers 00, 01, 06, 07, or 08, will be responded with qualifiers 00 or 01 (for change- event objects, qualifiers 17 or 28 are always responded.) Note 3: Cold restarts are implemented the same as warm restarts – the L30 is not restarted, but the DNP process is restarted. GE Multilin L30 Line Current Differential System...
Page 564 Otherwise, static object requests sent with qualifiers 00, 01, 06, 07, or 08, will be responded with qualifiers 00 or 01 (for change- event objects, qualifiers 17 or 28 are always responded.) Note 3: Cold restarts are implemented the same as warm restarts – the L30 is not restarted, but the DNP process is restarted. L30 Line Current Differential System GE Multilin...
Page 565 Otherwise, static object requests sent with qualifiers 00, 01, 06, 07, or 08, will be responded with qualifiers 00 or 01 (for change- event objects, qualifiers 17 or 28 are always responded.) Note 3: Cold restarts are implemented the same as warm restarts – the L30 is not restarted, but the DNP process is restarted. GE Multilin L30 Line Current Differential System...
Page 566: Dnp Point Lists
Change Event Variation reported when variation 0 requested: 2 (Binary Input Change with Time), Configurable Change Event Scan Rate: 8 times per power system cycle Change Event Buffer Size: 500 Default Class for All Points: 1 L30 Line Current Differential System GE Multilin...
Page 567: Binary And Control Relay Output
Virtual Input 59 Virtual Input 28 Virtual Input 60 Virtual Input 29 Virtual Input 61 Virtual Input 30 Virtual Input 62 Virtual Input 31 Virtual Input 63 Virtual Input 32 Virtual Input 64 GE Multilin L30 Line Current Differential System...
Page 568: Counters
Events Since Last Clear A counter freeze command has no meaning for counters 8 and 9. L30 Digital Counter values are represented as 32-bit inte- gers. The DNP 3.0 protocol defines counters to be unsigned integers. Care should be taken when interpreting negative counter values.
Page 569: Analog Inputs
Change Event Variation reported when variation 0 requested: 1 (Analog Change Event without Time) Change Event Scan Rate: defaults to 500 ms Change Event Buffer Size: 256 Default Class for all Points: 2 GE Multilin L30 Line Current Differential System E-11...
Page 570 E.2 DNP POINT LISTS APPENDIX E E-12 L30 Line Current Differential System GE Multilin...
Page 571: Change Notes
5-183 Update Updated VT FUSE FAILURE section 9-15 9-15 Update Updated RELAY SYNCHRONIZATION section Update Updated CONFIGURABLE GOOSE section Table F–4: MAJOR UPDATES FOR L30 MANUAL REVISION U1 (Sheet 1 of 2) PAGE PAGE CHANGE DESCRIPTION (T1) (U1) Title Title...
Page 572 F.1 CHANGE NOTES APPENDIX F Table F–4: MAJOR UPDATES FOR L30 MANUAL REVISION U1 (Sheet 2 of 2) PAGE PAGE CHANGE DESCRIPTION (T1) (U1) Update Updated VERTICAL UNITS sub-section 3-12 3-13 Update Updated CONTACT INPUTS AND OUTPUTS section Update Updated USING SETTINGS FILES section...
Page 573: F.2.1 Standard Abbreviations
FD ....Fault Detector MVA ....MegaVolt-Ampere (total 3-phase) FDH....Fault Detector high-set MVA_A....MegaVolt-Ampere (phase A) FDL ....Fault Detector low-set MVA_B....MegaVolt-Ampere (phase B) FLA....Full Load Current MVA_C....MegaVolt-Ampere (phase C) FO ....Fiber Optic GE Multilin L30 Line Current Differential System...
Page 574 RSTR ..... Restrained RTD ....Resistance Temperature Detector X ....Reactance RTU ....Remote Terminal Unit XDUCER..Transducer RX (Rx) ..Receive, Receiver XFMR..... Transformer s ..... second Z..... Impedance, Zone S..... Sensitive L30 Line Current Differential System GE Multilin...
Page 575: F.3.1 Ge Multilin Warranty
24 months from date of shipment from factory. In the event of a failure covered by warranty, GE Multilin will undertake to repair or replace the relay providing the warrantor determined that it is defective and it is returned with all transportation charges prepaid to an authorized service centre or the factory.
Page 576 F.3 WARRANTY APPENDIX F L30 Line Current Differential System GE Multilin...
Page 577 CLEANING ............... 2-27 settings ............... 5-150 CLEAR RECORDS ............ 5-14, 7-2 specifications ..............2-18 CLEAR RELAY RECORDS AUXILIARY VOLTAGE CHANNEL ........3-12 Modbus registers ............B-52 AUXILIARY VOLTAGE METERING ........6-16 settings ................. 5-14 GE Multilin L30 Line Current Differential System...
Page 578 ............... 5-116 CT BANKS stub bus ............... 5-120 settings ................. 5-56 theory ................9-1 CT FAILURE DIGITAL COUNTERS logic ................5-182 actual values ..............6-7 Modbus registers ............B-31 FlexLogic™ operands .............5-99 settings ............... 5-181 L30 Line Current Differential System GE Multilin...
Page 579 FAX NUMBERS ..............1-1 event recorder ..............4-2 FEATURES ..............2-1, 2-3 firmware upgrades ............4-2 Fiber ................3-28 installation ..............1-5 FIBER-LASER TRANSMITTERS ........3-28 introduction ..............4-1 FIRMWARE REVISION ............. 6-24 GE Multilin L30 Line Current Differential System...
Page 580 Modbus registers ..........B-17, B-36 settings ................. 5-51 specifications ..............2-19 FLEXCURVES™ G.703 ............ 3-29, 3-30, 3-31, 3-34 equation ..............5-126 GE TYPE IAC CURVES ..........5-125 Modbus registers ..........B-25, B-40 GROUND CURRENT METERING ........6-15 settings ................. 5-73 GROUND IOC specifications ..............2-19 FlexLogic™...
Page 581 FlexLogic™ operands ............. 5-99 logic ................5-150 MAINTENANCE COMMANDS ..........7-3 Modbus registers ............B-32 MANUFACTURING DATE ..........6-24 settings ............... 5-149 MATCHING PHASELETS ..........9-11 specifications ..............2-18 MEMORY MAP DATA FORMATS ........B-60 GE Multilin L30 Line Current Differential System...
Page 582 .............. 5-191 logic ................5-148 OVERCURRENT CURVE TYPES ........5-122 Modbus registers ............B-32 OVERCURRENT CURVES settings ................ 5-147 definite time..............5-126 specifications ..............2-18 FlexCurves™ ............... 5-126 PHASELETS ............... 9-1, 9-2 L30 Line Current Differential System GE Multilin...
Page 583 Modbus registers ......... B-11, B-17, B-53 removing ..............4-7, 8-9 settings ............... 5-193 viewing ..............4-6, 8-8 specifications ..............2-21 SETTINGS, CHANGING ........... 4-26 REMOTE LOOPBACK ............ 5-209 SIGNAL SOURCES REMOTE OUTPUTS description ............... 5-5 GE Multilin L30 Line Current Differential System...
Page 584 UNPACKING THE RELAY ..........1-1 UPDATING ORDER CODE ..........7-3 URPC TARGET MESSAGES ............7-6 see entry for ENERVISTA UR SETUP TARGET SETTING ............. 5-5 USER-DEFINABLE DISPLAYS TARGETS MENU ............... 7-6 example .................5-54 viii L30 Line Current Differential System GE Multilin...
Page 585 ..............7-1 FlexLogic™ operands ..........5-102 logic ................5-188 Modbus registers ............ B-9, B-47 settings ............... 5-188 ZERO SEQUENCE CORE BALANCE ........ 3-12 VIRTUAL OUTPUTS ZERO-SEQUENCE CURRENT REMOVAL ......5-63 actual values ..............6-5 GE Multilin L30 Line Current Differential System...
Page 586 INDEX L30 Line Current Differential System GE Multilin...

GE L30 Instruction Manual

Communications

3 Hardware

4 Human Interfaces

5 Settings

6 Actual Values

7 Commands and

8 Security

9 Theory of Operation

11 Commissioning

Parameter Lists

Communications

Modbus Function Codes

File Transfers

Quick Links

Related Manuals for GE L30

Summary of Contents for GE L30