Page 1 GE Consumer & Industrial Multilin Digital Feeder Protection Instruction manual GEK-106273L Copyright © 2005 GE Multilin GE Multilin GE Multilin Avda. Pinoa, 10 215 Anderson Avenue 48170 Zamudio SPAIN L6E 1B3 Markham, ON -CANADA Tel: +34 94 485 88 00 Fax: +34 94 485 88 45 Tel: (905) 294 6222 Fax: (905) 294 8512 E-mail: gemultilin.euro@ge.com...
Page 2: Table Of Contents
TECHNICAL SPECIFICATIONS. 2-17 2.13.1. PROTECTION UNITS ......................2-17 2.13.2. METERING FUNCTIONS ......................2-18 2.13.3. INPUTS ..........................2-18 2.13.4. POWER SUPPLY........................2-19 2.13.5. OUTPUTS ..........................2-19 2.13.6. COMMUNICATIONS......................2-20 2.13.7. ENVIRONMENTAL ........................2-20 2.13.8. TYPE TESTS & CERTIFICATIONS..................2-21 2.13.9. PRODUCTION TESTS......................2-21 2.13.10. APPROVALS..........................2-22 GEK-106273L MIF Digital Feeder Protection...
Page 3 4.4.3. WAVEFORM CAPTURE......................4-15 OPERATIONS 4-15 COMMUNICATION 4-16 4.6.1. COMPUTER .......................... 4-16 4.6.2. TROUBLESHOOTING......................4-20 4.6.3. UPGRADE FIRMWARE VERSION ..................4-21 VIEW 4-24 4.7.1. TRACES..........................4-24 4.7.2. MODBUS MEMORY MAP ..................... 4-25 4.7.3. LANGUAGES......................... 4-26 MIF Digital Feeder Protection GEK-106273L...
Page 4 ALPHANUMERIC DISPLAY MAIN STRUCTURE INFORMATION MENU 8-10 MAIN SETTINGS MENU 8-11 ADVANCED SETTINGS MENU 8-19 OPERATIONS MENU 8-22 DATE AND TIME MENU 8-24 RESETTING THE THERMAL IMAGE UNIT 8-25 8.10 RESETTING THE TARGET LEDS 8-25 GEK-106273L MIF Digital Feeder Protection...
Page 5 ANSI EXTREMELY INVERSE CURVE ................. 9-10 9.18.7. DEFINITE TIME ........................9-11 9.19 THERMAL IMAGE UNIT (49) 9-12 9.20 TIME SYNCHRONIZATION 9-12 9.21 USER SETTINGS 9-13 9.21.1. MAIN SETTINGS ........................9-13 9.21.2. ADVANCED SETTINGS ......................9-15 MIF Digital Feeder Protection GEK-106273L...
Page 6 SAMPLES OF SETTINGS FOR PARTICULAR MODEMS 14-3 14.3.1. SPORTSTER FLASH X2 MODEM (HAYES).................14-3 14.3.2. ZOOM PKT14.4........................14-4 14.3.3. MODEM SATELSA MGD-2400-DHE (V.25BIS) ..............14-5 15. ANNEX 5. HARMONIC FILTERING 15-1 15.1 GENERAL PRINCIPLE OF OPERATION. 15-1 15.2 DIGITAL FILTER 15-2 GEK-106273L MIF Digital Feeder Protection...
Page 7 16. ANNEX 6. STATUS LIST 16-1 17. APPLICATION NOTES 17-1 17.1 MIF WITH 1-SHOT RECLOSER 17-1 17.1.1. I/O CONFIGURATION ......................17-2 17.1.2. LOGIC CONFIGURATION..................... 17-2 17.2 TRIP CIRCUIT SUPERVISION FOR M-FAMILY RELAYS 17-4 17.2.1. SETTINGS AND CONFIGURATION ..................17-5 MIF Digital Feeder Protection GEK-106273L...
Page 8: Getting Started
Ensure that the mounting screws have been included with the relay. • For product information, instruction manual updates, and the latest software updates, please visit the GE Power Management Home Page (www.geindustrial.com/pm). Note: If there is any physical damage noticed on the relay, or any of the contents listed are missing, please contact GE Power Management immediately.
Page 9 Should you wish to receive additional information, or for any particular problem that cannot be solved by referring to the information contained herein, please contact GENERAL ELECTRIC POWER MANAGEMENT. MIF Digital Feeder Protection GEK-106273L...
Page 10: Enervista Mii Setup Software
After ensuring the minimum requirements for using EnerVista MII Setup are met (see previous section), use the following procedure to install the EnerVista MII Setup from the enclosed GE EnerVista CD. 1. Insert the GE EnerVista CD into your CD-ROM drive.
Page 11 7. When EnerVista detects that there is already a version of the program in the Software Library, the user will choose whether to install it directly or to check for more versions. MIF Digital Feeder Protection GEK-106273L...
Page 12 Web. FIGURE 1-4 9. EnerVista Launchpad will obtain the installation program from the Web. If the version the user already has is the last one on the Web, the following screen will appear GEK-106273L MIF Digital Feeder Protection...
Page 13 ENERVISTA MII SETUP to the Windows start menu. 14. Follow the on-screen instructions to install the ENERVISTA MII SETUP software. When the Welcome window appears, click on Next to continue with the installation procedure MIF Digital Feeder Protection GEK-106273L...
Page 14 16. The default program group where the application will be added to is shown in the Selected Program Folder window. Click Next to begin the installation process, and all the necessary program files will be copied into the chosen directory. GEK-106273L MIF Digital Feeder Protection...
Page 15 GETTING STARTED FIGURE 1-8 17. To finish with the installation process, select the desired language for startup FIGURE 1-9 MIF Digital Feeder Protection GEK-106273L...
Page 16 GETTING STARTED 18. Click Finish to end the installation. The MII device will be added to the list of installed IEDs in the EnerVista Launchpad window, as shown below. FIGURE 1-10 GEK-106273L MIF Digital Feeder Protection...
Page 17: M-Relay Family Hardware
To communicate with the relay rear RS485 port from a computer RS232 port, an RS232/RS485 converter box is needed. We recommend to use the F485 converter, manufactured by GE. This converter box is connected to the computer using a “straight through” serial cable. A shielded twisted pair (20, 22 or 24 AWG according to the American standards;...
Page 18: Using The Keypad And Display
“Enter” keys simultaneously. This is indicated by the “Esc” text labelled over the “+” and “Enter” keys. Refer to Chapter 8 – Keypad and Display, for more information on the use of the local keypad and display to access information and change settings. GEK-106273L MIF Digital Feeder Protection 1-11...
Page 19 GETTING STARTED 1-12 MIF Digital Feeder Protection GEK-106273L...
Page 20: Product Description
19200 bps. The rear RS485 port can be converted into an RS232 port or into a fibre optic (plastic or glass) serial port by using the GE DAC300 module. The ENERVISTA MII SETUP communication software is the Windows® based program used to communicate with the relay.
Page 21 PRODUCT DESCRIPTION Figure 2.1. SINGLE LINE DIAGRAM SHOWING MIF FUNCTIONS MIF Digital Feeder Protection GEK-106273L...
Page 22: Overcurrent Units
Inverse (IEC Curve C) 0.14 0.02 Very Inverse (IEC Curve B) 13.5 Extremely Inverse (IEC Curve A) D =Time Dial setting (set in the relay by user). V = I / I > 1.05 pickup setting GEK-106273L MIF Digital Feeder Protection...
Page 23 0.5000 3.0094 0.7222 Very Inverse 0.0615 0.7989 0.3400 -0.2840 4.0505 Inverse 0.0274 2.2614 0.3000 -4.1899 9.1272 M =Time Dial setting (set in the relay by user). V = I / I > 1.05 pickup setting MIF Digital Feeder Protection GEK-106273L...
Page 24 Operate time in seconds TDM = Multiplier setting Input current Ipkp = Pickup Current Setting A to E = Constants Table 2.1: GE TYPE IAC INVERSE TIME CURVE CONSTANTS IAC Curve Shape IAC Extremely Inverse Extr Inverse 0.0040 0.6379 0.6200 1.7872 0.2461...
Page 25 (between 0.1 - 2.4 times the rated current in case of 1/5 A ground, or 0.005-0.12 A in case of sensitive ground) and set the current/time operating characteristic (type and time dial). Note: The relay will use either IEC or ANSI curves, depending on the model. MIF Digital Feeder Protection GEK-106273L...
Page 26: Phase Instantaneous Overcurrent Units (50Ph, 50Pl)
The MIF relay provides 2 Ground Instantaneous Overcurrent Units, 50NH (‘H’ for High pickup) and 50NL (‘L’ for Low pickup). The settings and ranges available for these units are the same than the ones described for the Phase Instantaneous Overcurrent Units, 50PH and 50PL. GEK-106273L MIF Digital Feeder Protection...
Page 27: Thermal Image Unit
They will be described in detail in the SETTINGS section. T IN I<4%In T IN I>4%In Normal Cold Load status Pickup I<8%In T OUT I>8%In T OUT In, rated current I, phase currents: Ia, Ib, Ic MIF Digital Feeder Protection GEK-106273L...
Page 28: Breaker Failure To Open (Only Option 2 Models)
ENERVISTA MII SETUP program, a valid value can be set for any of these two fields. The valid range for the I counter is from 0.000 to 999.000, and for the “Number of Openings” counter it is from 0 to 999. From the keypad and display it is only possible to set both fields to zero. GEK-106273L MIF Digital Feeder Protection...
Page 29: Events (Available In Option 1 And Option 2 Models)
51N Trip enable/disable by digital input 49 Trip enable/disable by digital input General trip enable/disable by digital input Protection status in service/out of service Digital output 1 active/non active Digital output 2 active/non active 2-10 MIF Digital Feeder Protection GEK-106273L...
Page 30: Oscillography (Available In Option 1 And Option 2 Models)
Breaker 52A, Breaker 52B, Status 52 (only OPTION 2 model) Breaker opening failure (only OPTION 2 model) alarm (only OPTION 2 model) Cold load pickup (only OPTION 2 model) Table 2 selection by digital input E2prom failure Default settings/User’s settings GEK-106273L MIF Digital Feeder Protection 2-11...
Page 31: Multiple Settings Groups
The self-monitoring tests are carried out both when the unit is started up and during normal operation. Any internal problem detected by the self-monitoring function will issue an alarm and the READY output contact will be activated, meaning that a critical failure has occurred. 2-12 MIF Digital Feeder Protection GEK-106273L...
Page 32: User Interface
PC, the ENERVISTA MII SETUP program and a communications cable the user can access to all the internal information in the relay, as the list of events and oscillography data cannot be shown on the small faceplate display. Access to I/O configuration and logical configuration is also possible only via PC. GEK-106273L MIF Digital Feeder Protection 2-13...
Page 33 MIF units are supply together with ENERVISTA MII SETUP software, a Windows based software allowing communication with the relay for data view and retrieval, as well as oscillography, I/O configuration and logical configuration (in models where these features are available). 2-14 MIF Digital Feeder Protection GEK-106273L...
Page 34: Model List. Order Codes
Individual relay Mounted in a M+ System ** OPTION 1: Configurable I/O, Event recording, oscillography OPTION 2: Includes all OPTION 1 features, plus Cold load pickup, breaker failure to open protection, breaker health, configurable Logic. GEK-106273L MIF Digital Feeder Protection 2-15...
Page 35 ** If relays are to be mounted in an M+ system, then either an M050 half 19’’ rack or M100 full 19’’ must be ordered. The M050 and M100 racks are provided at no additional cost. ACCESSORIES A depth reducing collar can be ordered separately. This collar reduces the mounting depth in 63 mm (2.48 inches). 2-16 MIF Digital Feeder Protection GEK-106273L...
Page 36: Technical Specifications
Between 20 and 30 ms for I> 1.5 x Actual Pickup @ 60 Hz Timing Accuracy: ±5% of operate time or ±30 ms. (whichever is greater) for I > 1.5 times the Actual Pickup GEK-106273L MIF Digital Feeder Protection 2-17...
Page 37: Metering Functions
< 0.08 VA @ In = 1A sensitive ground, secondary Current Withstand: 4 x In continuously. 100 x In for 1 sec. DIGITAL INPUTS Voltage Level: 300 Vdc maximum Recognition Time: < 4 ms 2-18 MIF Digital Feeder Protection GEK-106273L...
Page 38: Power Supply
Continuous Mode Current: 16 A at 250 Vac, general purpose ¾ HP, 124 Vac 1-1/2 HP, 250 Vac 10 A, 250 Vac, 0.4 F.P. B300 pilot duty Make and Carry: 30 A Breaking: 4000 VA GEK-106273L MIF Digital Feeder Protection 2-19...
Page 39: Communications
300, 600, 1200, 2400, 4800, 9600 or 19200 bps, Modbus® RTU 2.13.7. ENVIRONMENTAL Operating Temperatures: -20º C to +60º C Ambient Storage Temperatures: -40º C to +80º C Indoor use only Maximum relative humidity Altitude 2000 m. Max Pollution Degree 2-20 MIF Digital Feeder Protection GEK-106273L...
Page 40: Type Tests & Certifications
Power Supply interruptions: Temperature: IEC 57 (CO) 22 RF Emission: EN 55011 Sinusoidal Vibration: IEC 60255-21-1 Shock: IEC 60255-21-2 2.13.9. PRODUCTION TESTS Insulation Test: IEC255-5 (Tested on CTs, Power Supply terminals, Contact Inputs and Contact Outputs) GEK-106273L MIF Digital Feeder Protection 2-21...
Page 41: Approvals
PRODUCT DESCRIPTION 2.13.10. APPROVALS Manufactured under an ISO9001Registered system. CE Marking. UL Certified 2-22 MIF Digital Feeder Protection GEK-106273L...
Page 42: Hardware
The relay must be mounted such that the faceplate sits semi-flush with the panel or switchgear door, allowing the operator access to the keypad and the RS232 communications port. The relay is secured to the panel with the use of four screws supplied with the relay. GEK-106273L MIF Digital Feeder Protection 3-23...
Page 43 PRODUCT DESCRIPTION Note: Dimensions are shown in mm, and in inches between parenthesis. Figure 3-2A. MOUNTING AND DIMENSIONS DRAWING FOR MIF MODELS WITH DEPTH REDUCING COLLAR 3-24 MIF Digital Feeder Protection GEK-106273L...
Page 44: Module Withdrawal / Insertion
CTs. Internal connections are done through pressing terminals. The internal current wires are separated from the rest, to minimise the magnetic coupling (associated to high input currents) on other internal wires carrying weaker signals. GEK-106273L MIF Digital Feeder Protection 3-25...
Page 45: Rear Terminal Assignments
Figure 3-4 shows the location and identification of the terminals blocks at the rear of the MIF relay. Recommended cable section: 12/16 AWG Cable material: copper Tightening torque: 1.2 Nm Figure 3-4 MIF RELAY - REAR VIEW 3-26 MIF Digital Feeder Protection GEK-106273L...
Page 46: Wiring
PRODUCT DESCRIPTION WIRING 3.2.1. TYPICAL WIRING DIAGRAM Recommended cable section: 12/16 AWG Cable material: copper Tightening torque: 1.2 Nm Figure 3-5 TYPICAL WIRING DIAGRAM FOR MIF RELAY GEK-106273L MIF Digital Feeder Protection 3-27...
Page 47: Control Power
RELAY. IF THE VOLTAGE IS APPLIED TO THE WRONG TERMINALS, DAMAGE MAY OCCUR. Table 3-1: Control Power Voltage Range RANGE RATED VOLTAGE OPERATION RANGE 24/48 Vdc 19.2~57.6 Vdc 110/250 Vdc 88~300 Vdc 110/230 Vac 88~264 Vac 3-28 MIF Digital Feeder Protection GEK-106273L...
Page 48: Ac Current Transformer Inputs
GROUND CONNECTION TO NEUTRAL MUST BE ON SOURCE SIDE. SOURCE GROUND OUTSIDE CT LOAD SHIELDED CABLE SOURCE STRESS CONE SHIELDS GROUND CONNECTION MUST BE ON LOAD SIDE LOAD Figure 3-6 ZERO SEQUENCE CORE BALANCE CT INSTALLATION GEK-106273L MIF Digital Feeder Protection 3-29...
Page 49: Contact Inputs / Outputs
If it is not possible to ensure the previous conditions, the connection shown below can be used, where lines are wired only to inputs (A8 and A9), and the common (A10) is connected to the unit ground terminal. 3-30 MIF Digital Feeder Protection GEK-106273L...
Page 50: Output Contacts Configuration
(NO or NC). JUMPERS CRITICAL OUTPUT 1 OUTPUT 2 OUTPUT 3 OUTPUT 4 OUTPUT OUTPUT CONTACT CONTACT FIGURE 3.8. PCB SCHEME SHOWING THE JUMPERS TO CONFIGURE THE OUTPUT CONTACTS (NC / NO) GEK-106273L MIF Digital Feeder Protection 3-31...
Page 51: 3.2.6. Outputs Isolation
The Jx jumper is a tin-solder jumper easy to remove using a de-soldering tool. The standard factory default output contact configuration consists of one group of four outputs, with the same common. The figure below shows the configuration: 3-32 MIF Digital Feeder Protection GEK-106273L...
Page 52 If Jx jumper is removed, the output contact configuration change as shown in the following figure: After removing the Jx Jumper, the outputs are divided in two groups: Independent and isolated. Group1: Output 1: Terminals B8-B7 Group 2: Output 2: Terminals B9-A7 Output 3: Terminals B10-A7 GEK-106273L MIF Digital Feeder Protection 3-33...
Page 53 OUT1 and OUT2 must operate together to operate like a single output. The configuration of OUT1 and OUT2 must be the same so both outputs close simultaneously and operate successfully. • Jx Removed and one of the two internal contacts set as normally closed: 3-34 MIF Digital Feeder Protection GEK-106273L...
Page 54 OUT2 as NOT ASIGNED, so it never change its state and remains closed, and OUT1 as required by the application (output configuration is only available in models option 1 and 2). GEK-106273L MIF Digital Feeder Protection 3-35...
Page 55: Rs232 Faceplate Communications Port
A 9-pin RS232C serial port is located on the relay’s faceplate for programming with a portable (personal) computer. All that is required to use this interface is a personal computer running the ENERVISTA MII SETUP software. Figure 3-9 shows the communications cable configuration. Figure 3-9 RS232 FACEPLATE PORT CONNECTION 3-36 MIF Digital Feeder Protection GEK-106273L...
Page 56 In case of a firmware flashing process, due to the risk of losing communication, GE Multilin will not be responsible in case of a communication failure if the relay and PC are not grounded to the same point.
Page 57: Rs485 Communications Port
Zt (*) (*) Line terminations (120 ohm / 0.5 W + 1 nF / 100 V) should be used when length of line exceeds 1 km. Zt (*) Figure 3-10 RS485 SERIAL CONNECTION (B6366H5) 3-38 MIF Digital Feeder Protection GEK-106273L...
Page 58: Communications
The ENERVISTA MII SETUP software package uses only ModBus protocols, and is designed to communicate with a single relay at a time. GE Multilin offers different communication software packages, such as GE-POWER and enerVista, which can be used to communicate simultaneously with several relays.
Page 59: Starting Communication
The main screen of ENERVISTA MII SETUP software includes the following components: Title Main menu bar Main icon bar Working area Status bar Title Working area Main menu bar Main icon bar Status bar FIGURE 4-1 ENERVISTA MII SETUP MAIN SCREEN MIF Digital Feeder Protection GEK-106273L...
Page 60: File
Communication, View and Help menus for configuration. OPEN Option that allows to open previously created setting files for their modification. Once the relay model is selected, the program will enable Setpoint, Actual, Communication, View and Help sub- menus. GEK-106273L MIF Digital Feeder Protection...
Page 61: Settings
The File – Get info from relay option enables to send to the relay a settings file stored on the hard disk of the computer. PRINT SETUP The File – Print Setup option enables the user to configure the print setup for the settings file as shown in figure 4-4. FIGURE 4-4. PRINTER SETUP MIF Digital Feeder Protection GEK-106273L...
Page 62 PRINT The File – Print option prints the relay settings using Windows default (active) printer. CLOSE The File – Close option exits the program. It does not prompt for confirmation or save the open file. GEK-106273L MIF Digital Feeder Protection...
Page 63 Store the settings in the relay (if working in Emulation mode, this option stores them on the corresponding file) with the Store button. If the OK button is pressed without having pressed Store (a window asking confirmation will appear), the settings of this group will be discarded. MIF Digital Feeder Protection GEK-106273L...
Page 64 Settings with a set of options. For set of options settings, a pop-up window is shown, containing all possible values. Select the appropriate one clicking on it. Text Setting: A text box is shown. FIGURE 4-8: LOGIC SETTING FIGURE 4-9: NUMERIC SETTING FIGURE 4-10: SET OF OPTIONS GEK-106273L MIF Digital Feeder Protection...
Page 65 4.3.3.2. OTHER ADVANCED SETTINGS Besides the Flex Curve values, the user may configure the mask of events that will generate an event report and the events that will generate an oscillography. MIF Digital Feeder Protection GEK-106273L...
Page 66: Relay Configuration
4-12) where the user can choose a sum of several functions that will activate the output or LED, or be activated by the input. These functions are distributed in groups, and only functions in the same group can be chosen for the same OR gate. GEK-106273L MIF Digital Feeder Protection...
Page 67 * MEMORY (only for outputs and LEDs): when MEMORY checkbox is enabled, the respective element will be latched. If the cause that generated the activation of the output or LED does no longer exist, the element will remain active until a RESET command is performed. 4-10 MIF Digital Feeder Protection GEK-106273L...
Page 68: Logic Configuration
1. If result of the OR gate drops to 0, output will be 1 for 15s and after that time output will be 0. See Chapter 7 for more details on the logic configuration. GEK-106273L MIF Digital Feeder Protection...
Page 69: Clock
FIGURE 4-14. CLOCK Once the new date and time have been sent, the user can check in the status graph, or even in the relay itself, that the new date/time has been correctly entered. 4-12 MIF Digital Feeder Protection GEK-106273L...
Page 70: Actual
* Protection function status (pickup / trip for each function). * Active settings group number. * Contact inputs and outputs status, and LEDs status. * Information from the self-test functions of the device. FIGURE 4-15. MIF II STATUS WINDOW GEK-106273L MIF Digital Feeder Protection 4-13...
Page 71: Event Recorder
SETUP program) or exported to CSV (Comma Separated Values) format. This is a standard text table format that can be opened with most commercially available database or spreadsheet programs such as MS Access or Excel. 4-14 MIF Digital Feeder Protection GEK-106273L...
Page 72: Waveform Capture
FIGURE 4-17. OSCILLOGRAPHY RECORD This file can be viewed using GE_OSC software (the use of this software is described in manual GEK-105596). OPERATIONS From Operations menu the user can perform all possible operation commands. GEK-106273L MIF Digital Feeder Protection 4-15...
Page 73: Communication
After making any change, pressing Store button saves the changes without exiting the window. Pressing OK saves and exits and pressing Cancel exits without saving changes. 4.6.1. COMPUTER In COMPUTER dialog the user can configure the necessary adjustments to communicate with the relay from a PC. FIGURE 4-18. COMMUNICATIONS DIALOG 4-16 MIF Digital Feeder Protection GEK-106273L...
Page 74 Computer Settings box (ON button), or disconnect from the relay when desired (OFF button). When the ON button is pressed, a new window appears asking for the relay password FIGURE 4-20. COMMUNICATION CONTROL – IDENTIFY RELAY GEK-106273L MIF Digital Feeder Protection 4-17...
Page 75 Changing these parameters can improve communication, although it is recommended not to make changes to the default values if it is not required. FIGURE 4-22. COMMUNICATION OPTIMIZATION i.e., the first time a writing operation is performed against the relay during the current communication 4-18 MIF Digital Feeder Protection GEK-106273L...
Page 76 Then a new window appears allowing to view the captured screen, to save the captured file in BMP or JPG format, or to print it (the print dialog window will appear so as the user can select which printer to use and enter the appropriate printer settings). FIGURE 4-23. PRINT SCREEN GEK-106273L MIF Digital Feeder Protection 4-19...
Page 77: Troubleshooting
SEND button. FIGURE 4-24. TROUBLESHOOTING Refer to preceding section to learn about Print Screen button. To check how to read memory map addresses from the relay refer to the corresponding section further in this chapter 4-20 MIF Digital Feeder Protection GEK-106273L...
Page 78: Upgrade Firmware Version
After selecting the file that will be used to update the FLASH memory, the following screen will be displayed, showing details of the old model and the new model: FIGURE 4-26. UPDATE FLASH DIFFERENCES GEK-106273L MIF Digital Feeder Protection 4-21...
Page 79 If the update is to a model option with higher functionality (see OPTION 1, OPTION 2 and OPTION R in the model list), the program will request a password. This password can be obtained placing an order with GE Multilin. The following three parameters must be clearly indicated in the order: * Serial number of the unit.
Page 80 This means that the user will need to adapt the settings to the real situation of the protected device. If the user wants to keep the same settings after the memory update, a copy of the settings should be stored in a file before starting the update process. GEK-106273L MIF Digital Feeder Protection 4-23...
Page 81: View
Communication – Computer menu. When TRACES are active, the ModBus communication traces will be displayed in the lower part of the screen, as shown in figure 4-30: FIGURE 4-30. MODBUS TRACES 4-24 MIF Digital Feeder Protection GEK-106273L...
Page 82: Modbus Memory Map
FIGURE 4-31. MODBUS MEMORY MAP GEK-106273L MIF Digital Feeder Protection 4-25...
Page 83: Languages
LANGUAGES option is only active when there is no active communication with the relay. If the PC is communicating with the relay, to activate this option the user must switch communication off in Communication – Computer menu. FIGURE 4-32. LANGUAGES 4-26 MIF Digital Feeder Protection GEK-106273L...
Page 84: Settings
ENERVISTA MII SETUP, after clicking on Relay Connection. CT transformation ratio settings allow to view the current measures in primary line values. Examples of setting: Phase Current Transformer: 300/5 CT PH Setting: 60 Neutral Current Transformer: 100/2 CT N Setting: 100 GEK-106273L MIF Digital Feeder Protection 5-27...
Page 85: Main Settings
PHASE TRANSF CT PH 1-4000 RATIO Neutral CT ratio NEUTRAL TRANSF CT N 1-4000 RATIO Password 1 – 255 Address 1 – 255 Communications BAUD 9600 300, 600, 1200, Speed 2400, 4800, 9600, 19200 5-28 MIF Digital Feeder Protection GEK-106273L...
Page 86: Phase / Ground Toc Settings (51P / 51N)
51N Time Dial 51N Time Dial DIAL 51N 0.05 – 2.00 0.01 (IEC curves) 0.5 – 20.0 0.01 (ANSI curves) Definite Time 51N Definite Time TIME 51N 1 s. 0 – 600.00 s. 0.01 s. Delay GEK-106273L MIF Digital Feeder Protection 5-29...
Page 87: Phase / Ground Ioc Settings (50Ph / 50Pl / 50Nh / 50Nl)
1/5 A ground) 50NL Tap / Pickup (for 50NL Pickup TAP 50NL 0.005 A 0.005-0.12 A 0.001 A sensitive ground) 50NL Time Delay 50NL Time Delay TIME 50NL 0 s. 0 – 600.00 s. 0.01 s. 5-30 MIF Digital Feeder Protection GEK-106273L...
Page 88: Thermal Image Settings (49)
GEK-106273L MIF Digital Feeder Protection 5-31...
Page 89: Phase / Ground Toc Settings (51P / 51N) (Table 2)
51N Time Dial T2 DIAL 51N T2 0.05 – 2.00 0.01 (IEC curves) 0.5 – 20.0 0.01 (ANSI curves) Definite Time 51N Definite Time T2 TIME 51N T2 1 s. 0 – 600.00 s. 0.01 s. Delay 5-32 MIF Digital Feeder Protection GEK-106273L...
Page 90: Phase / Ground Ioc Settings (50Ph / 50Pl / 50Nh / 50Nl) (Table 2)
50NL Tap / Pickup Value 50NL Pickup T2 TAP 50NL T2 0.005 A 0.005-0.12 A 0.001 A (sensitive ground) TIME 50NL 50NL Time Delay 50NL Time Delay T2 0 s. 0 – 600.00 s. 0.01 s. GEK-106273L MIF Digital Feeder Protection 5-33...
Page 91: Thermal Image Settings (49) (Table 2)
τ1 1– 6 times τ1 Cooling Time Constant T2 T2 T2 T2 τ2 5.3.5. USER’S CURVE ENERVISTA MII DEFAULT RANGE STEP SETUP Parameters USU Function 0.05 0-125 0.001 0.001 0.04 0.001 0.001 0-1.999 0.001 5-34 MIF Digital Feeder Protection GEK-106273L...
Page 92: Events And Oscillography Masks
Trip operation by digital Trip operation by input input Trip operation by command Trip operation by com. Auxiliary digital output latch Reset latch aux reset 52 B open/closed Breaker 52 A NA (2) GEK-106273L MIF Digital Feeder Protection 5-35...
Page 93: Oscillography Masks
The following three groups are only available in MIF models with OPTION 2: 5.3.8. I2 COUNTER ENERVISTA MII DEFAULT RANGE STEP SETUP Counter I2 Counter I2 limit I2 limit I2T MAX 999.000 0-999.000 kA2 0.001 kA2 5-36 MIF Digital Feeder Protection GEK-106273L...
Page 94: Breaker Failure To Open
MIF relay includes an internal clock to time tag events. This clock can be synchronised with the computer clock using the ENERVISTA MII SETUP software program. It can also be set to a given Date and Time using the faceplate keypad. GEK-106273L MIF Digital Feeder Protection 5-37...
Page 95 SETTINGS 5-38 MIF Digital Feeder Protection GEK-106273L...
Page 96: I/0 Configuration
51P disabled Input 1/2 51N disabled 50PL disabled 50NL disabled If we want to reset LEDs using a digital input, we must assign the LED reset function to one digital input Input 1/2 Reset GEK-106273L MIF Digital Feeder Protection 6-39...
Page 97: Input Functions
It is only possible to switch to T2 through digital input Table change Reset This function allows LED and output Latch reset (PULSE) Oscillo trigger This function allows to activate the oscillo function (PULSE) General input Generic function that may be used in logic configuration. 6-40 MIF Digital Feeder Protection GEK-106273L...
Page 98: Outputs And Leds Configuration (Only For Option 1 And Option 2 Models)
50PL trip 51P trip If we want an output or LED to be active when function is Remote, we must program the output or LED with the Local/Remote function inverted with NOT. Local/Remo Output/L GEK-106273L MIF Digital Feeder Protection 6-41...
Page 99: Outputs And Leds Functions
Pickup of Phase A 51P unit 51 b Pickup Pickup of Phase B 51P unit 51 c Pickup Pickup of Phase C 51P unit 50PH pickup 50PH function pickup 50NH pickup 50NH function pickup 6-42 MIF Digital Feeder Protection GEK-106273L...
Page 100 ADVANCED SETTINGS menu or OPERATIONS menu When trip conditions exist for a protection unit, the relay operates a virtual trip of this unit. If it is not disabled by setting or Digital Input, the trip occurs. GEK-106273L MIF Digital Feeder Protection 6-43...
Page 101 I/O CONFIGURATION 6-44 MIF Digital Feeder Protection GEK-106273L...
Page 102: Logic Configuration (Only Option 2 Models)
Signals must be used in order, starting with S1. If we wish to use more than one signal in the same AND, use S2 first and then S3. If we wish to use another AND use AND 2 first, and then AND 3. GEK-106273L MIF Digital Feeder Protection...
Page 103 LOGIC CONFIGURATION For example, we can configure the following logic, where Input 1 is the RESET signal: Input Logic 1 Logic MIF Digital Feeder Protection GEK-106273L...
Page 104 LOGIC CONFIGURATION Time diagram for the logic configuration: Pickup Dropout timer timer Logic input Logic output Pickup Dropout timer timer Logic input Logic output Pickup Dropout Dropout timer timer timer Pickup timer Logic input Logic output GEK-106273L MIF Digital Feeder Protection...
Page 105: Logic Functions
Pickup of Phase C 51P unit 50PH pickup 50PH function pickup 50NH pickup 50NH function pickup 50PL pickup 50PL function pickup 50NL pickup 50NL function pickup 51P pickup 51P function pickup 51N pickup 51N function pickup MIF Digital Feeder Protection GEK-106273L...
Page 106 When breaker failure is enabled and breaker is connected to input1/2 I2 Alarm Output of the I counter function Cold load pickup Output of the Cold load pickup function, when this function is enabled E2PROM failure Active when an E2prom management failure is detected GEK-106273L MIF Digital Feeder Protection...
Page 107 Active when the relay is in service and at least one function is enabled to trip ACTIVE TABLE T1 or T2 Local/Remote LOCAL when the HMI is on the MAIN SETTINGS, ADVANCED SETTINGS, or OPERATIONS menu MIF Digital Feeder Protection GEK-106273L...
Page 108: Keypad And Display
LEDs matrix type display. Using the display you can view different types of data, as settings, trip information, alarms, etc. GE Power Management Figure 8.2. ALPHANUMERIC DISPLAY Messages in the display are shown in English language. If the keypad is not in use during 15 minutes, the relay will automatically perform an scrolling through the most relevant measures (Ia, Ib, Ic, IN and TH (Thermal Image).
Page 109: Main Structure
Figure 8.4. ONE KEY OPERATION MENU The mnemonics used in the figure have the following meanings: Phase A Current. Phase B Current Phase C Current Ground Current Value (Ia) Phase A Current metering. Value (Ib) Phase B Current metering. MIF Digital Feeder Protection GEK-106273L...
Page 110 Access to the Main Settings of the relay. ADVANCED SETTINGS Access to the Advanced Settings of the relay. OPERATIONS Access to the Commands menu of the device. DATE TIME Access to the relay Date and Time. GEK-106273L MIF Digital Feeder Protection...
Page 111 Currents and Thermal Image. INP1 Contact Input # 1 status. INP2 Contact Input # 2 status. OUT1 Contact Output #1 status. OUT2 Contact Output #2 status. OUT3 Contact Output #3 status. OUT4 Contact Output #4 status. 8-10 MIF Digital Feeder Protection GEK-106273L...
Page 112 Phase Time Overcurrent Function (51P). F51N Ground Time Overcurrent Function (51N). F50PH Phase Instantaneous Overcurrent, High Setting. F50PL Phase Instantaneous Overcurrent, Low Setting. F50NH Ground Instantaneous Overcurrent, High Setting. F50NL Ground Instantaneous Overcurrent, Low Setting. Thermal Image Function GEK-106273L MIF Digital Feeder Protection 8-11...
Page 113 Once the desired heading is displayed, pressing Enter the actual value of the setpoint is shown, blinking. To modify this value press “+” and “-“. To accept the value modification press Enter again and confirm your change. 8-12 MIF Digital Feeder Protection GEK-106273L...
Page 114 300 bauds. - 0.6 600 bauds. - 1.2 1200 bauds. - 2.4 2400 bauds. - 4.8 4800 bauds. - 9.6 9600 bauds. - 19.2 19200 bauds. CONFIRM Validate the new value for the setpoint. GEK-106273L MIF Digital Feeder Protection 8-13...
Page 115 Figure 8.9. KEYPAD AND DISPLAY HANDLING FROM THE F51P HEADING Press Enter to access the different settings corresponding to the F51P function: TRIP51P, TAP51P, CURV51P, DIAL51P and TIME51P. Pressing “+” and “-“ move through these settings headings until the display shows the one 8-14 MIF Digital Feeder Protection GEK-106273L...
Page 116 In the case of sensitive ground models, the range for setting TAP 51N is as follows: TAP 51N 51N tap Range: 0.005-0.12 A Step: 0.001 A NOTE: The relay will use IEC or ANSI curves depending on the model. GEK-106273L MIF Digital Feeder Protection 8-15...
Page 117 Select it by pressing Enter. At this point, the actual value for that setting is shown, blinking. Pressing “+” and “-“ change this value to the appropriate one. Press Enter and the relay will ask for your confirmation. To confirm the change press Enter. 8-16 MIF Digital Feeder Protection GEK-106273L...
Page 118 The display and keypad handling for the other Instantaneous Overcurrent Functions F50PL, F50NH and F50NL are identical to the one just described. In case of sensitive ground, the range for settings TAP 50NH/TAP 50NL is as follows: Range: 0.005-0.12 A Step: 0.001 A GEK-106273L MIF Digital Feeder Protection 8-17...
Page 119 The display and keypad use for the Thermal Image function (F49) is as follows: MAIN SETTINGS ENTER F50NL GENERAL ENTER TRIP 49 TAP 49 ALARM 49 ENTER VALUE ENTER ENTER ENTER Figure 8.11. KEYPAD AND DISPLAY HANDLING FROM THE F49 HEADING 8-18 MIF Digital Feeder Protection GEK-106273L...
Page 120 Select it by pressing Enter. At this point, the actual value for that setting is shown, blinking. Pressing “+” and “-“ change this value to the appropriate one. Press Enter and the relay will ask for your confirmation. To confirm the change press Enter. GEK-106273L MIF Digital Feeder Protection 8-19...
Page 121 T2, F05PL T2, F50NH T2, F50NL T2 and F49 T2, where T2 means TABLE 2. The use of the keypad and display for all these functions is identical to the previously described for the corresponding function in the table number one. 8-20 MIF Digital Feeder Protection GEK-106273L...
Page 122 Multiplier for 51P tap 1 – 5 Step: 0.01 Breaker failure to open BF ENABLE Permission BF Y (YES) / N (NO) BF TIME Breaker failure to open time 50 – 999 msec. Step: 1 msec. GEK-106273L MIF Digital Feeder Protection 8-21...
Page 123 The use of the keypad and display in the Operations Menu of the MIF relay is as follows: MENU ADVANCED OPERATIONS DATE TIME SETTINGS ENTER ACT TABLE2 RESET ACT TABLE1 RST THERMAL ENTER ENTER ENTER Figure 8.13. KEYPAD AND DISPLAY USE IN THE OPERATIONS MENU 8-22 MIF Digital Feeder Protection GEK-106273L...
Page 124 Once the operation to be performed has been found, using the “+” and “-“ keys, press Enter to select it, and then press Enter again to confirm that the command must be executed. Then the text OK will appear in the display. GEK-106273L MIF Digital Feeder Protection...
Page 125 Select the display showing DATE TIME pressing “+” and “-“, and press Enter to select this option. The first value to be change is the year. Press “+” and “-“ to set the year desired and press Enter to move to the next field as the flow chart indicates. 8-24 MIF Digital Feeder Protection GEK-106273L...
Page 126 It is also possible to reset the Target LEDs from the computer, using the ENERVISTA MII SETUP program. Enter in the Operations Menu of the ENERVISTA MII SETUP program and select the corresponding button. GEK-106273L MIF Digital Feeder Protection 8-25...
Page 127 KEYPAD AND DISPLAY 8-26 MIF Digital Feeder Protection GEK-106273L...
Page 128 In case of performing this test on all terminals at the same time, have in mind that the consumption will increase, due to the impedance of the capacitors inside the relay, used to derive high frequency surges to ground. consumption will approximately, 2000 Volts each input. GEK-106273L MIF Digital Feeder Protection...
Page 129 Connect the relay as shown in figure 9.1. For safety reasons, the external protection earth terminal should be securely grounded. Supply the unit through terminals A1 and A2 at the rated DC voltage. Figure 9-1 TEST CONNECTIONS FOR MIF RELAY MIF Digital Feeder Protection GEK-106273L...
Page 130 If the rear RS485 port is used, an RS485/RS232 converter is needed. The communications parameters that have to be set in the computer are the relay default settings, as follows: Relay Number: Communications speed: 9.600 Number of Stop bits: GEK-106273L MIF Digital Feeder Protection...
Page 131 • Remove the Power Supply from the relay and check that the Alarm Output Contact (terminals B5-B6) closes. Set the power supply back to the relay terminals and check that the Alarm Output Contact opens. MIF Digital Feeder Protection GEK-106273L...
Page 132 • With 1.1 times the pickup current the relay should trip in between 10 to 50 ms. • With 4 times the pickup current the relay should trip in between 10 to 40 ms. • The test should be carried out for phases A, B and C. GEK-106273L MIF Digital Feeder Protection...
Page 133 • Apply 0.9 times the pickup current into phase A and the relay should not trip. • Apply 1.5 times the pickup current and the relay should trip between 15.3 and 19.7 sec. • Apply 5 times the pickup current and the relay should trip between 4.1 and 4.5 sec. MIF Digital Feeder Protection GEK-106273L...
Page 134 • Apply 0.9 times the pickup current into phase B and the relay should not trip. • Apply 1.5 times the pickup current and the relay should trip between 26.72 and 37.27 sec. • Apply 5 times the pickup current and the relay should trip between 2.46 and 2.75 sec. GEK-106273L MIF Digital Feeder Protection...
Page 135 • Apply 0.9 times the pickup current into phase C and the relay should not trip. • Apply 1.5 times the pickup current and the relay should trip between 17.19 and 23.58 sec. • Apply 5 times the pickup current and the relay should trip between 1.14 and 1.34 sec. MIF Digital Feeder Protection GEK-106273L...
Page 136 • Apply 0.9 times the pickup current at the ground terminals and the relay should not trip. • Apply 1.5 times the pickup current and the relay should trip between 23.4 and 31.8 sec. • Apply 5 times the pickup current and the relay should trip between 3.1 and 3.6 sec. GEK-106273L MIF Digital Feeder Protection...
Page 137 • Apply 1.5 times the pickup current and the relay should trip between 17.19 and 23.58 sec. • Apply 5 times the pickup current and the relay should trip between 1.14 and 1.34 sec 9-10 MIF Digital Feeder Protection GEK-106273L...
Page 138 • Apply 1.1 times the pickup current and the relay should trip in 1.0 sec. Acceptable time range is between 1.00 and 1.06 sec. • Apply 4 times the pickup current and the relay should trip in 1.0 sec. Acceptable time range is between 1.00 and 1.06 sec. GEK-106273L MIF Digital Feeder Protection 9-11...
Page 139 TIME SYNCHRONIZATION Synchronise the relay date and time with the PC, using the ENERVISTA MII SETUP communications program. Check using the keypad and display that the relay is actually in synchronism with the computer. 9-12 MIF Digital Feeder Protection GEK-106273L...
Page 140 50PH Permission to Trip 50PH Trip Permission TRIP 50PH Tap / Pickup 50PH Pickup TAP 50PH 0.1 – 30 In (Ph) 0.1 In (Ph) 50PH Time Delay 50PH Time Delay 0 – 600.00 s. 0.01 s. TIME GEK-106273L MIF Digital Feeder Protection 9-13...
Page 141 0.1 – 2.4 In (Ph) 0.01 In (Ph) Overload Percent Alarm 49 Alarm Level ALARM 49 70% – 100% ITH Heating Time Constant 3 – 600 min. 1 min 1 – 6 times τ1 Cooling Time Constant 9-14 MIF Digital Feeder Protection GEK-106273L...
Page 142 0.1 In (G) ground) 50NH Pickup 50NH Pickup T2 TAP 50NH T2 0.005-0.12 A 0.001 A (sensitive ground) 50NH Time Delay 50NH Time Delay T2 TIME 50NH T2 0 – 600.00 s. 0.01 s. GEK-106273L MIF Digital Feeder Protection 9-15...
Page 143 Heating Time Constant τ1 T1 T2 T1 T2 3 – 600 min. 1 min. Cooling Time Constant τ2 1– 6 times τ1 T2 T2 T2 T2 USER’S CURVE 0-125 0.001 0.001 0.001 0.001 0-1.999 0.001 9-16 MIF Digital Feeder Protection GEK-106273L...
Page 144 Digital input 2 active/non active Digital input 2 Settings change disabled by digital Settings change disabled input Trip operation by digital input Trip operation by input Trip operation by command Trip operation by com. GEK-106273L MIF Digital Feeder Protection 9-17...
Page 145 T IN T IN 0-60 s 0.001 s Drop out time T OUT T OUT 0-60 s 0.001 s Cte. 50P pickup K 50P K 50P 0.01 Cte. 51P pickup K 51P K 51P 0.01 9-18 MIF Digital Feeder Protection GEK-106273L...
Page 146 In case of detecting accumulated pollution, the unit can be cleaned with a clean cloth dry or slightly dampened with a cleaner containing alcohol. Abrasive cleaners must be avoided, as these can damage the metallic surface or the electrical connection elements. GEK-106273L MIF Digital Feeder Protection 10-1...
Page 147 INSTALLATION AND MAINTENANCE 10-2 MIF Digital Feeder Protection GEK-106273L...
Page 148 In this sense, it can be said that Thermal Image relays have memory, as they remember the previous status of the machine, and start computing temperature based on that status. GEK-106273L MIF Digital Feeder Protection...
Page 149 / (a * S), according to the defined parameters. It indicates the heating speed of the element (it is the amount of time it takes to reach the 63% of the final temperature.) α : Parameter which a value equal to: a * S / R 11-2 MIF Digital Feeder Protection GEK-106273L...
Page 150 Equation [10], represents the basic tripping algorithm for a thermal image relay, that for a given τ and I , can be ∞ drawn, in general using a logarithm plane, using “v” as the parameter, as shown in figures A-1.1 and A-1.2. GEK-106273L MIF Digital Feeder Protection 11-3...
Page 151 θ θ τ − Where: θ Temperature increase at a given time θN Rated temperature (temperature reached if I = IN) Protected element rated current Current flowing through the protected element 11-4 MIF Digital Feeder Protection GEK-106273L...
Page 152 When the protected element cools down, the time constant (Cooling Time Constant) may be different than the heating time constant. For motors and generators applications, the heat transfer between the machine and the GEK-106273L MIF Digital Feeder Protection 11-5...
Page 153 1 to 6 times the heating time constant τ1. If the current is greater than 15% In, the element will be considered to be connected (spinning), and then, the cooling time constant will be τ1. 11-6 MIF Digital Feeder Protection GEK-106273L...
Page 154 ANNEX 1 THERMAL IMAGE UNIT Figure A-1.1. THERMAL CURVE FOR τ1 = 3 MINUTES. GEK-106273L MIF Digital Feeder Protection 11-7...
Page 155 ANNEX 1 THERMAL IMAGE UNIT Figure A-1.2. THERMAL CURVES FOR τ1 = 3 MIN. 11-8 MIF Digital Feeder Protection GEK-106273L...
Page 156 ANNEX 2 TIME CURRENT CURVES FOR 51P AND 51N UNITS 12. ANNEX 2 TIME-CURRENT CURVES FOR 51P AND 51N UNITS Figure A-2.1 INVERSE CURVES GEK-106273L MIF Digital Feeder Protection 12-1...
Page 157 ANNEX 2 TIME CURRENT CURVES FOR 51P AND 51N UNITS Figure A-2.2 VERY INVERSE CURVES 12-2 MIF Digital Feeder Protection GEK-106273L...
Page 158 ANNEX 2 TIME CURRENT CURVES FOR 51P AND 51N UNITS Figure A-2.3 EXTREMELY INVERSE CURVES GEK-106273L MIF Digital Feeder Protection 12-3...
Page 159 9.00 0.05 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.20 1.40 1.60 1.80 2.00 10.00 0.04 0.08 0.16 0.24 0.32 0.40 0.48 0.57 0.65 0.73 0.81 0.97 1.13 1.29 1.45 1.62 The general equation for all IEC/B142 curves is as follows: − 12-4 MIF Digital Feeder Protection GEK-106273L...
Page 160 ANNEX 2 TIME CURRENT CURVES FOR 51P AND 51N UNITS Where: CURVE NAME Extremely inverse IEC Curve C Very inverse IEC Curve B 13.5 Inverse IEC Curve A 0.14 0.02 GEK-106273L MIF Digital Feeder Protection 12-5...
Page 161 BS142 INVERSE 1000 TIME DIAL 0.05 0,01 TIMES PICKUP...
Page 162 BS142 VERY INVERSE 1000 TIME DIAL 0.05 0,01 TIMES PICKUP...
Page 163 BS142 EXTREMELY INVERSE 1000 TIME DIAL 0,01 TIMES PICKUP...
Page 164 10.00 0.05 0.10 0.20 0.29 0.39 0.49 0.59 0.69 0.79 0.88 0.98 1.18 1.38 1.57 1.77 1.96 The general equation for all ANSI curves is as follows: ⎡ ⎤ ⎢ ⎥ − − − ⎣ ⎦ Where: GEK-106273L MIF Digital Feeder Protection 12-9...
Page 165 ANNEX 2 TIME CURRENT CURVES FOR 51P AND 51N UNITS CURVE NAME Extremely inverse 0.0399 0.2294 0.5000 3.0094 0.7222 Very inverse 0.0615 0.7989 0.3400 -0.2840 4.0505 Inverse 0.0274 2.2614 0.3000 -4.1899 9.1272 12-10 MIF Digital Feeder Protection GEK-106273L...
Page 166 ANSI INVERSE 1000 TIME DIAL 0,01 TIMES PICKUP...
Page 167 ANSI VERY INVERSE 1000 TIME DIAL 0,01 TIMES PICKUP...
Page 168 ANSI EXTREMELY INVERSE 1000 TIME DIAL 0,01 TIMES PICKUP...
Page 169 0.204 0.201 0.198 0.882 0.579 0.415 0.363 0.338 0.323 0.313 0.306 0.301 0.297 1.176 0.773 0.553 0.484 0.450 0.430 0.417 0.408 0.401 0.396 10.0 1.470 0.966 0.692 0.605 0.563 0.538 0.522 0.510 0.502 0.495 12-14 MIF Digital Feeder Protection GEK-106273L...
Page 170 ⎠ ⎝ ⎠ ⎝ ⎠ ⎝ ⎠ ⎝ ⎠ ⎝ ⎠ where: Table 2.1: GE TYPE IAC INVERSE TIME CURVE CONSTANTS IAC Curve Shape IAC Extremely Inverse Extr Inverse 0.0040 0.6379 0.6200 1.7872 0.2461 IAC Very Inverse Very Inverse 0.0900 0.7955...
Page 171 IAC INVERSE GES-7001 100,00 10,00 1,00 0,10 0,01 10,0 100,0 I / Ipkp...
Page 172 IAC VERY INVERSE GES-7002 100,00 10,00 1,00 0,10 0,01 10,0 100,0 I / Ipkp...
Page 173 IAC EXTREMELY INVERSE GES-7005 100,00 10,00 1,00 0,10 0,01 10,0 100,0 I / Ipkp...
Page 174 IAC INVERSE LONG GES-7004 100,00 10,00 1,00 0,10 0,01 10,0 100,0 I / Ipkp...
Page 175 IAC INVERSE SHORT GES-7003 100,00 10,00 1,00 0,10 0,01 10,0 100,0 I / Ipkp...
Page 176 No. of bytes/2 words 1 word Example: Request: Reading of 75 records (150 bytes) beginning from address 04FE (1278). ADDRESS FUNCTION BEGINNING #REGS 04FE 004B 653D Reply: ADDRESS FUNCTION BYTES DATA0 DATA74 500D 0200 84 D5 GEK-106273L MIF Digital Feeder Protection 13-1...
Page 177 We send the command corresponding to the group of values. For example, if we want to activate Table 2, the opening command will be the 15 (0F00H). ADDRESS FUNCTION BEGINNING #REGS #BYTES DATA0 0000 00 01 0F00 A3A0 Reply: ADDRESS FUNCTION BEGINNING #REGS 0000 0001 01C9 13-2 MIF Digital Feeder Protection GEK-106273L...
Page 178 To confirm the activation of table 2, the operation code used will be 16 (10H). In this case, it is necessary to send the relay password. Request: ADDRESS FUNCTION BEGINNING #REGS #BYTES DATA0 DATA1 DATA2 00 00 00 03 10 00 01 00 00 00 E5EC Reply: ADDRESS FUNCTION BEGINNING #REGS 00 00 00 03 8008 GEK-106273L MIF Digital Feeder Protection 13-3...
Page 179 Reordering for sending the lowest size byte first: E0 13 DA 12 19 00 ADDRESS FUNCTION BEGINNING #REGS #BYTES COMMAND VALUE 00 00 00 04 FE 00 E0 13 DA 12 19 00 ECFC 13-4 MIF Digital Feeder Protection GEK-106273L...
Page 180 0118H of its memory map. The relay identification is an ASCII text of 16 characters. 1. SETTING CHANGE SELECTION (LIKE A COMMAND) Request: ADDRESS FUNCTION BEGINNING #REGS #BYTES DATA0 0000 0001 0100 A7C0 Reply: ADDRESS FUNCTION BEGINNING #REGS 0000 00 01 01C9 GEK-106273L MIF Digital Feeder Protection 13-5...
Page 181 #REGS 0118 0008 4034 SETTING CHANGE CONFIRMATION (LIKE A COMMAND): Request: ADDRESS FUNCTION BEGINNING #REGS #BYTES DATA0 DATA1 DATA2 0000 0003 0200 0100 0000 E69E Reply: ADDRESS FUNCTION BEGINNING #REGS 0000 00 03 8008 13-6 MIF Digital Feeder Protection GEK-106273L...
Page 182 ADDRESS FUNCTIÓN+ ERROR CODE 0D C2 The ERROR CODE field may contain the following values: ILLEGAL FUNCTION ILLEGAL DATA ADDRESS ILLEGAL DATA VALUE SLAVE DEVICE FAILURE ACK. SLAVE BUSY NEGATIVE ACKNOWLEDGE MEMORY PARITY ERROR GEK-106273L MIF Digital Feeder Protection 13-7...
Page 183 I$2 ALARM 04E8 Cold load pickup COLD LOAD 04E8 E2prom failure 04E8 User settings 04EA ACTIVE TABLE T AC 04EA Frequency frec 04EA Local LOCREM 04EE 50Ha Trip DIS 50HA 04EE 50Hb Trip DIS 50HB 13-8 MIF Digital Feeder Protection GEK-106273L...
Page 184 FLOAT32(INTEL) 04FC FLOAT32(INTEL) 050C OSC. NUMBER UINT16(INTEL) 0492 Date/Time DATE/TIME 0498 Version ARRAY BYTES 0500 Thermal Image FLOAT32(INTEL) 0504 I2t Counter I$2 VALUE FLOAT32(INTEL) 0508 Number of openings OPENINGS FLOAT32(INTEL) 0510 All Events UINT16(INTEL) GEK-106273L MIF Digital Feeder Protection 13-9...
Page 185 FLOAT32(INTEL) 0196 50NH Trip T2 TRIP 50NH T2 017E 50NL Pickup TAP 50NL FLOAT32(INTEL) 0148 50NL Trip TRIP 50NL 0182 50NL Time Delay TIME 50NL FLOAT32(INTEL) 01CC 50NL Pickup T2 TAP 50NL T2 FLOAT32(INTEL) 13-10 MIF Digital Feeder Protection GEK-106273L...
Page 186 DIAL 51P T2 FLOAT32(INTEL) 01A2 51P Time Delay T2 TIME 51P T2 FLOAT32(INTEL) 019C 51P Curve T2 CURV 51P T2 ENUMERADO 0196 51P Trip T2 TRIP 51P T2 0198 51P Pickup T2 TAP 51P T2 FLOAT32(INTEL) GEK-106273L MIF Digital Feeder Protection 13-11...
Page 187 107,690,464,000 DEC = 00 19 12 DA 13 00 HEX = 00 13 DA 12 19 00 (lower bytes first) OPERATIONS NAME ENGLISH SELECTION CONFIRMATION RESET LEDS RESET THERMAL IMAGE acT1 ACTIVATE TABLE 1 acT2 ACTIVATE TABLE 2 Settings SELECTION / CONFIRMAT. 13-12 MIF Digital Feeder Protection GEK-106273L...
Page 188 Procomm Plus or LAPLink. Once the modem is connected to the selected port in the program, and after setting the communication parameters, we can send the required commands. Later in this document we will detail the configuration that must be entered in some HAYES modems already tested. GEK-106273L MIF Digital Feeder Protection 14-1...
Page 189 The configuration of this kind of modem is performed by means of microswitches that set its operation. This way, the software window for entering the modem initiation commands will only be operative if a HAYES modem has been selected. 14-2 MIF Digital Feeder Protection GEK-106273L...
Page 190 Sets the number of rings necessary The modem will answer to the first ring. S0=1 for answering in automatic answering mode Record with bit representation. Disable ARQ/MNP for V.32/V.32bis. S15=4 Record with bit representation. Disable V.34. modulation S32=8 GEK-106273L MIF Digital Feeder Protection 14-3...
Page 191 &C1 &D3 &G0 &J0 &K0 &Q5 &R1 &S1 &T4 &X0 &Y0 S Registers: S00:001 S01:000 S02:043 S03:013 S04:010 S05:008 S06:002 S07:050 S08:002 S09:006 S10:014 S11:095 S12:050 S18:000 S25:005 S26:001 S36:007 S37:000 S38:020 S44:020 S46:138 S48:007 S95:000 14-4 MIF Digital Feeder Protection GEK-106273L...
Page 192 Automatic call as per 108.1. ON-OFF RTC line without automatic call. OFF-OFF Automatic call as per 108.2. Number of calls for automatic answer ON: 1 call. OFF: 2 calls. 112 ETD/OFF ON: Asynchronous operation. OFF: Synchronous operation. GEK-106273L MIF Digital Feeder Protection 14-5...
Page 193 Selection, when starting, of manual or automatic answering mode. ON: Automatic. OFF: Manual. Protocol selection. ON: HAYES Protocol. OFF: V.25bis Protocol. 7&8 Modem transmission level. ON-ON ON-ON -6 dBm OFF-ON -10 dBm ON-OFF -6 dBm OFF-OFF -15 dBm 14-6 MIF Digital Feeder Protection GEK-106273L...
Page 194 Automatic call as per 108.1. ON-OFF RTC line without automatic call. OFF-OFF Automatic call as per 108.2. Number of calls for automatic answer ON: 1 call. OFF: 2 calls. 112 ETD/OFF ON: Asynchronous operation. OFF: Synchronous operation. GEK-106273L MIF Digital Feeder Protection 14-7...
Page 195 Selection, when starting, of manual or automatic answering mode. ON: Automatic. OFF: Manual. Protocol selection. ON: HAYES Protocol. OFF: V.25bis Protocol. 7&8 Modem transmission level. ON-ON ON-ON -6 dBm OFF-ON -10 dBm ON-OFF -6 dBm OFF-OFF -15 dBm 14-8 MIF Digital Feeder Protection GEK-106273L...
Page 196 CPU: It is the digital signal-processing unit; it takes tripping decisions, etc. The CPU performs the DFT for current and voltage signals in order to obtain the vectors representing each signal, which are used for all further calculations in the relay protection functions. GEK-106273L MIF Digital Feeder Protection 15-1...
Page 197 1 6 0 1 7 0 1 8 0 1 9 0 2 0 0 2 1 0 2 2 0 F r e q u e n c y Figure 3 MEASURE SAMPLES 15-2 MIF Digital Feeder Protection GEK-106273L...
Page 198 50 Hz, and it is being applied 60 Hz. MEASURE SAMPLES Figure 4 This case will never occur for the fundamental frequency and its harmonics, where the filter gain is always 1 and 0 respectively. GEK-106273L MIF Digital Feeder Protection 15-3...
Page 199 ANNEX 5 HARMONIC FILTERING 15-4 MIF Digital Feeder Protection GEK-106273L...
Page 200 Inhibition of 51P unit trip by digital input 51N Disabled Inhibition of 51N unit trip by digital input 49 Disabled Inhibition of 49 unit trip by digital input Trip disabled General trip inhibition by digital input GEK-106273L MIF Digital Feeder Protection 16-1...
Page 201 Trip of any unit phase B Phase c trip Trip of any unit phase C Ground trip Trip of any ground unit (50NH, 50NL, 51N) Trip General trip Protection Entered value in the “relay status” setting (general 16-2 MIF Digital Feeder Protection GEK-106273L...
Page 202 Number of openings I2 Alarm Active when I counter value exceeds the counter maximum limit, set in the BREAKER FAILURE TO OPEN group of settings. Active when the MMI is on the settings or operations Local/remote GEK-106273L MIF Digital Feeder Protection 16-3...
Page 203 * Virtual trips are outputs of the corresponding protection units. These will become real trips if the trip permissions for those units are enabled. MOD 0: MIFP***E000*00* MOD 1: MIFP***E100*00* MOD 2: MIFP***E200*00* 16-4 MIF Digital Feeder Protection GEK-106273L...
Page 204 LOGIC 1 Close CLOSE LOGIC OUTPUT Block or Lockout Logic #3 Reset Timer LOGIC LOGIC Logic #4 LOGIC 3 LOCKOUT Lockout LOGIC OUTPUT WIRING RESE INP#1 INPUT Block or INP#2 Lockout INPUT RECLOSE OUTPUT B9 GEK-106273L MIF Digital Feeder Protection 17-1...
Page 205 (breaker open and no block/lockout) in an OR gate, using the Morgan rules to convert the × AND to an OR: After the timer, we have the CLOSE signal, which is configured to output B8. 17-2 MIF Digital Feeder Protection GEK-106273L...
Page 206 While the output from LOGIC#3 is active, while the reset time is being counted down after re-closing the breaker, if the relay trips then the 79 is sent to Lockout and output B9 is closed and latched. B9 also activates input A9 to avoid new reclosing attempts. GEK-106273L MIF Digital Feeder Protection 17-3...
Page 207 52a contact, as shown below: +Vdc TRIP TRIP INP#1 INP#2 Breaker Value of resistor R Auxiliary Supply Ohms Watts Contact (52a) 48 Vdc 10 K 125 Vdc 25 K TRIP COIL 250 Vdc 50 K 17-4 MIF Digital Feeder Protection GEK-106273L...
Page 208 1. Under I/O CONFIGURATION, Input#1 must be configured as 'General Input'. It will be used to monitor the permanent presence of voltage. 2. Under LOGIC CONFIGURATION, LOGIC#1, Invert Input#1 and set the timer to the time delay to produce the Trip Circuit Supervision Alarm, for example 15 seconds. GEK-106273L MIF Digital Feeder Protection 17-5...
Page 209 3. Under I/O Configuration, configure LEDs and outputs as required. In this example, LED#1 and configurable output#1 are configured to operate when a Trip Circuit failure is detected. They are also configured to have memory, so they will remain active even if the Trip Circuit failure disappears. 17-6 MIF Digital Feeder Protection GEK-106273L...