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Siemens SIPROTEC 7VU681 User Manual

Multifunction automatic transfer system
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SIPROTEC
Multifunction Automatic
Transfer System
7VU681
V4.60
User Manual
C53000-G1176-C368-1
Preface
Content
Introduction
Functions
Mounting And Commissioning
Technical Data
Appendix
Literature
1
2
3
4
A

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Summary of Contents for Siemens SIPROTEC 7VU681

  • Page 1 Preface Content Introduction SIPROTEC Functions Multifunction Automatic Mounting And Commissioning Transfer System 7VU681 Technical Data Appendix V4.60 Literature User Manual C53000-G1176-C368-1...
  • Page 2 We reserve the right to make technical improvements without SIPROTEC, SINAUT, SICAM and DIGSI are registered trademarks notice. of Siemens AG. Other designations in this manual might be trademarks whose use by third parties for their own purposes would Document Version: V04.00.00 infringe the rights of the owner.
  • Page 3 Additional Support Should further information on the System SIPROTEC 4 be desired or should particular problems arise which are not covered sufficiently for the purchaser's purpose, the matter should be referred to the local Siemens rep- resentative. Our Customer Support Center provides a 24-hour service.
  • Page 4 Training Courses Enquiries regarding individual training courses should be addressed to our Training Center: Energy Sector Power Distribution Division Energy Automation Siemens Power Automation Ltd Building 4, Hua Rui Industry Park, 88 Cheng Xin Avenue, Jiangning Economic & Technological Development Zone Nanjing 211100, P.R.China...
  • Page 5 The operational equipment (device, module) may only be used for such applications as set out in the catalogue and the technical description, and only in combination with third-party equipment recommended or approved by Siemens. The successful and safe operation of the device is dependent on proper handling, storage, installation, opera- tion, and maintenance.
  • Page 6 Preface Typographic and Symbol Conventions The following text formats are used when literal information from the device or to the device appear in the text flow: Parameter Names Designators of configuration or function parameters which may appear word-for-word in the display of the device or on the screen of a personal computer (with operation software DIGSI), are marked in bold letters in monospace type style.
  • Page 7 Preface Input signal of analog quantity AND-gate operation of input values OR-gate operation of input values Exclusive OR-gate (antivalence): output is active, if only one of the inputs is active Coincidence gate (equivalence): output is active, if both inputs are active or inactive at the same time Dynamic inputs (edge-triggered) above with positive, below with nega- tive edge...
  • Page 8 Preface SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...

  • Page 9: Table Of Contents

    Contents Introduction ................13 Application Scope .
  • Page 10 Contents Monitor Function ..............56 2.3.1 PT Broken Wire Supervision .
  • Page 11 Contents Appendix ................101 Ordering information .
  • Page 12 Contents SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...

  • Page 13: Introduction

    Introduction This chapter indroduces the power supply transfer devices 7VU681. It presents an overview of the scope of application, the properties ,and functional scope of the 7VU681. Application Scope Function Configuration Characteristics SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...

  • Page 14: Application Scope

    Introduction 1.1 Application Scope Application Scope In power plant, industrial plant and network substation, in order to ensure the continuity of load operation, two power supplies are provided for important loads . One power supply is working as the operating power supply, another is the backup.

  • Page 15: Function

    Function This chapter describes the individual functions available on the SIPROTEC 4 device 7VU681. It show the setting possibilities for each function in maximum configuration. Protection Function Monitor Function SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...

  • Page 16: Ats

    Function 2.1 ATS 2.1.1 General Here are the basic requirements of ATS function: 1. When the busbar voltage is dead, the standby voltage is normal and there is no blocking condition, ATS start. 2. ATS cannot start when the CB of the operating power supply is opened manually. 3.
  • Page 17 Function 2.1 ATS Figure 2-1 The General Logic Diagram of ATS 7VU681 supports some typical power supply transfer logics for different primary diagrams. Transfer mode defines each power transfer logic. The transfer modes can be switched ON or OFF separately with settings. In the next chapter, it describes the details of the Ready conditions, Unready conditions, pickup conditions , and CB operation logics for each mode of ATS.
  • Page 18 Function 2.1 ATS If the default transfer modes cannot fulfill requirements, you can define a new ATS logic via CFC function to meet the particular conditions and logics. Through CFC, you can do small logic changes of the existing transfer modes.
  • Page 19 Function 2.1 ATS The logic diagram of Voltage components and current components used in ATS logic is shown as followed. Figure 2-2 Logic Diagram of Voltage Components and Current Components SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...
  • Page 20 Function 2.1 ATS The logics of Circuit breaker operation and supervision are shown as followed Figure 2-3 Logic Diagram of CB operation Note 1. The device does not support separate control function, it is not possible to operate the CB via front panel. 2.

  • Page 21: Settings

    Function 2.1 ATS The ATS is blocked under the certain conditions, its logic is shown as followed. Figure 2-4 Simplified Logic Diagram of ATS 2.1.1.1 Settings Addr. Parameter Setting Options Default Setting Comments 0159 Automatic Transfer System Disabled Enabled Enabled 0160 Protection Function Disabled...
  • Page 22 Function 2.1 ATS Addr. Parameter Setting Options Default Setting Comments 0214 PT Connection of Line2 Va transformer Va-b transformer Vb transformer Vc transformer Va-b transformer Vb-c transformer Vc-a transformer Not connected 8900 Busbar Live Voltage 10.0<= .. <=150.0 70.0V Threshold 8901 Busbar Dead Voltage 10.0<= ..

  • Page 23: Information List

    Function 2.1 ATS Addr. Parameter Setting Options Default Setting Comments 0257 Earth CT Rated Primary 1<= .. <=100000 3000A Current Busbar 0258A Earth CT Rated Secondary Current Busbar Power System Data 1-> CB 0261 Minimum TRIP Command 0.01<= .. <=10.00 0.20sec Duration 0262...
  • Page 24 Function 2.1 ATS Information Type Function 17728 Line2DeadCurr. 17760 CommandOpenCB1 17761 CommandOpenCB2 17762 CommandOpenCB3 17765 CommandOpenCB6 17767 CommandCloseCB1 17768 CommandCloseCB2 17769 CommandCloseCB3 17770 CommandCloseCB4 17771 CommandCloseCB5 17773 CommandCloseCB7 17774 Fail: Open CB1 17775 Fail: Open CB2 17776 Fail: Open CB3 17779 Fail: Open CB6 17781...

  • Page 25: Power Supply Transfer Between Lines

    Function 2.1 ATS 2.1.2 Power Supply Transfer Between Lines 2.1.2.1 Primary Diagram Figure 2-5 Primary Diagram of Transfer Mode Line1 -> Line2 SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...
  • Page 26 Function 2.1 ATS Figure 2-6 Primary Diagram of Transfer Mode Line2 -> Line1 The lower sides of the 2 transfers are called Lines. These 2 modes work in the condition that the circuit breaker of one line is closed and working as the operating power supply. Both buses are supplied by it. When Bus coupler circuit-breaker is closed, the circuit breaker of another line is open and working as standby power supply.

  • Page 27: Transfer Mode Line1->Line2

    Function 2.1 ATS 2.1.2.2 Transfer Mode Line1->Line2 (Line1 is supplying power while Line2 standing- Figure 2-7 Ready and UnReady Logic of Transfer Mode Line1 -> Line2 SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...
  • Page 28 Function 2.1 ATS Note 1, When the parameter 0214 PT Connection of Line2 is set to one of the 6 options of Va transformer, Vb transformer, Vc transformer, Va-b transformer, Vb-c transformer, Vc-a transformer, the signal of 17821 Line2 Live Voltage will be taken as the Ready condition of Line1->Line2. When the parameter set to Not connected, the signal of 17821 Line2 Live Voltage will not be taken as the Ready condition of Line1->Line2 anymore.

  • Page 29: Transfer Mode Line2->Line1

    Function 2.1 ATS 2.1.2.3 Transfer Mode Line2->Line1 (Line2 is supplying power while Line1 standing- Figure 2-9 Ready and Unready Logic of Transfer Mode Line 2->Line 1 Note 17865 >NonManu.Op.CB2 works on the condition that it is configured in DIGSI matrix. SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...
  • Page 30 Function 2.1 ATS Figure 2-10 Pickup and CB Operation Logic of Transfer Mode Line2 -> Line1 Note 17868 >B1 MCB Closed and 17869 >B2 MCB Closed will work in pickup logic of Line2 -> Line1 on the condition that they are configured to BIs in DIGSI matrix. SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...

  • Page 31: Power Supply Transfer Between Busbars

    Function 2.1 ATS 2.1.3 Power Supply Transfer Between Busbars 2.1.3.1 Primary Diagram Figure 2-11 Primary Diagram of Transfer Mode Busbar1 -> Busbar2 SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...
  • Page 32 Function 2.1 ATS Figure 2-12 Primary Diagram of Transfer Mode Busbar2 -> Busbar1 In the normal operation state, bus coupler circuit-breaker is open. Meanwhile, Busbar1 and Busbar2 are powered on independently with 2 power supplies. When one busbar lost voltage and other busbar voltage is normal, ATS will close CB3 to power on the dead busbar.

  • Page 33: Transfer Mode Busbar1->Busbar2

    Function 2.1 ATS 2.1.3.2 Transfer Mode Busbar1->Busbar2 (Busbar1 is supplying power while Busbar2 standing-by) Figure 2-13 Ready and Unready Logic of Transfer Mode Busbar1 -> Busbar2 SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...
  • Page 34 Function 2.1 ATS Figure 2-14 Pickup, Action, and Load-Shifting Logics of Transfer Mode Busbar1->Busbar2 SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...
  • Page 35 Function 2.1 ATS Note 1.17868 >B1 MCB Closed will work whent it is configured to BI in DIGSI matrix. 2. 7VU681 supports Load-Shifting function for the standby power supply which supplies one more busbar when there are 4 segmented busebars supplied by 3 transformers. The primary diagram is shown as followed. Load- Shifting function can be switched ON or OFF by the parameter 0229 Busbar1 ->...

  • Page 36: Transfer Mode Busbar2->Busbar1

    Function 2.1 ATS 2.1.3.3 Transfer Mode Busbar2 -> Busbar1 (Busbar2 is supplying power while Busbar1 standing-by) The Ready and Unready conditions and logics are the same with those of Transfer Mode Busbar1->Busbar2. Please refer to 2.1.3.2 for details. Figure 2-16 Pickup, Action, and Load-Shifting Logics of Transfer Mode Busbar2->Busbar1 Note 1.17869 >B2 MCB Closed will work when it is configured to a BI in DIGSI matrix.

  • Page 37: Power Supply Transfer Between Transformers

    Function 2.1 ATS 2.1.4 Power Supply Transfer between Transformers 2.1.4.1 Primary Diagram Figure 2-17 Primary Diagram of Transfer Mode Transformer1 -> Transformer2 SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...
  • Page 38 Function 2.1 ATS Figure 2-18 Primary Diagram of Transfer Mode Transformer2 -> Transformer1 SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...

  • Page 39: Transfer Mode Transformer1->Transformer2

    Function 2.1 ATS 2.1.4.2 Transfer Mode Transformer1 -> Transformer2 (Transformer1 is supplying power while Transformer2 standing-by) Figure 2-19 Ready and Unready Logic of Transfer Mode Transformer1 -> Transformer2 SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...
  • Page 40 Function 2.1 ATS Figure 2-20 Pickup and CB Operation Logic of Transfer Mode T1->T2 Note 1, 17868 >B1 MCB Closed and 17869 >B2 MCB Closed work in the pickup logic of Transformer1- >Transformer2 on the condition that they are configured to BIs in DIGSI matrix. 2, 8926 Transformer Energization Time is the energized time of the transformer when connected to the power supply without load.

  • Page 41: Transfer Mode Transformer2->Transformer1

    Function 2.1 ATS 2.1.4.3 Transfer Mode Transformer2 -> Transformer1 (Transformer2 is supplying power while transformer1 standing-by) Figure 2-21 Ready and Unready Logic of Transfer Mode Transformer2 -> Transformer1 Note 17865 >NonManu.Op.CB2 will work just when it is configured to a BI in DIGSI matrix. SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...
  • Page 42 Function 2.1 ATS Figure 2-22 Pickup and CB Operation Logic of T2->T1 Note 1.17868 >B1 MCB Closed and 17869 >B2 MCB Closed work in the pickup logic of Transformer2- >Transformer1 when they are configured to the BIs in DIGSI matrix. Otherwise, the pickup logic will not check them.

  • Page 43: User-Specified Ats

    Function 2.1 ATS 2.1.5 User-Specified ATS When the default transfer modes cannot meet the requirements of special applications, you can define their own transfer logics via the CFC. CFC is programmable logic tool with graphical interface. It supports the arithmetic operation, logic operation and relational operation with analog input.

  • Page 44: Settings

    Function 2.1 ATS Figure 2-24 Logic Diagram of Load Shedding Started By External Signals 2.1.7 Settings Addr. Parameter Setting Options Default Setting Comments ATS->General 0223 Transfer Mode Line1 -> Line2 0224 Transfer Mode Line2 -> Line1 0225 Transfer Mode Busbar1 -> Busbar2 0226 Transfer Mode Busbar2 ->...

  • Page 45: Information List

    Function 2.1 ATS Addr. Parameter Setting Options Default Setting Comments A Setting Group->ATS 0231 Manually Restart ATS 8938 Time Delay to Ready Status 0.05<= <=600.00 10sec 8939 Time Delay to Un-Ready Status 0.01<= <=600.00 10sec 8929 Time Delay to Switch CB 0.05<=..<=600.00, 0.04sec 8919...
  • Page 46 Function 2.1 ATS Addr. Information Type Function No. Info. No. 17704 Line2 -> Line1 Initiated 17714 Line2 -> Line1 Pickup 17799 Line2 -> Line1 Succeeded 17911 Line2 -> Line1 Failed 17790 Busbar1 -> Busbar2 is Blocked 17685 Busbar1 -> Busbar2 is Active 17695 Busbar1 ->...

  • Page 47: Protection

    Function 2.2 Protection Addr. Information Type Function No. Info. No. 17915 Transformer2 -> Transformer1 Failed 17804 Load Shifting Pickup 17805 Load Shifting Succeeded 17806 Load Shifting Failed 18003 Busbar Load Shifting is Actived 18004 >Neighboring ATS is Ready 17900 >Start Load-Shedding Line1 17901 >Start Load-Shedding Line2 17733...

  • Page 48: Phase Overcurrent Protection

    Function 2.2 Protection 2.2.1 Phase Overcurrent Protection This device supplies 2 stages of definite time phase overcurrent protection. Figure 2-25 Logic Diagram of the Phase Overcurrent Protection 1.Compound voltage control can be enabled or disabled by setting the parameter 9001 Compound Voltage Control to YES or NO.

  • Page 49: Settings

    Function 2.2 Protection 2.2.1.1 Settings Addr. Parameter Setting Options Default Setting Comments Protection Functions->General 9000 Phase Overcurrent Protection Functions -> Voltage Control 9002 Ph-Ph Undervoltage 1V..125V, 0V 70 V Threshold 9003 U2 Overvoltage Threshold 1V..125V, ∞ Protection Functions -> Phase O/C 9001 Compound Voltage Control 9004...

  • Page 50: Zero Sequence Overcurrent Protection

    Function 2.2 Protection 2.2.2 Zero Sequence Overcurrent Protection This device supplies 2 stages of definite time zero sequence overcurrent protection. Figure 2-26 Logic Diagram of the Zero Sequence Overcurrent Protection 1. Zero sequence voltage function can be enabled or disabled by setting the parameter 9011 3U0 Control to YES or NO.

  • Page 51: Settings

    Function 2.2 Protection 2.2.2.1 Settings Addr. Parameter Setting Options Default Setting Comments Protection Functions-> General 9010 Zero Sequence Overcurrent 9018 3I0/IE Assignment Protection Functions -> Voltage Control 9012 3U0 Overvoltage 1V..200V Threshold Protection Functions -> Zero Sequ. O/C 9011 3U0 Control 9013 Zerosequ.

  • Page 52: Phase O/C For Busbar Energization Protection

    Function 2.2 Protection 2.2.3 Phase O/C for Busbar Energization Protection This device supplies 2 stages of definite time phase overcurrent protection for busbar energization. Figure 2-27 Logic Diagram of the Phase Overcurrent for Busbar Energization Protection SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...

  • Page 53: Information List

    Function 2.2 Protection When the parameter 9020 Phase O/C for Busbar Energization is set to ON and bus-tie CB is closed, Phase overcurrent for busbar energization protection will start to run. The running time is set by the parameter 9019A Active Time for Busbar Energization. 2.

  • Page 54: Earth O/C For Busbar Energization Protection

    Function 2.2 Protection 2.2.4 Earth O/C for Busbar Energization Protection This device supplies 2 stages of definite time ground overcurrent for busbar energization. Figure 2-28 Logic Diagram of the Earth Overcurrent for Busbar Energization Protection 1. When the parameter 9030 Earth O/C for Busbar Energization is set to ON and bus-tie CB is closed, Earth overcurrent for busbar energization protection will start to run.

  • Page 55: Settings

    Function 2.2 Protection 2.2.4.1 Settings Addr. Settings Setting Options Default Setting Comments Protection Functions -> General 9030 Earth O/C for Busbar Energization 9018 3I0/IE Assignment 9019A Active time for Busbar 0.01s..600.00s 5.00s Energization Protection Functions -> Voltage Control 9012 3U0 Overvoltage Threshold 1V..200V Protection Functions ->...

  • Page 56: Monitor Function

    Function 2.3 Monitor Function Monitor Function When the rated frequency is 50Hz, the frequency operation range of supervision functions is 45Hz to 66Hz. When the rated frequency is 60Hz, the frequency operation range of supervision functions is 55Hz to 66Hz. 2.3.1 PT Broken Wire Supervision PT broken wire supervision contains busbar PT broken wire supervision and line PT broken wire supervision.

  • Page 57: Settings

    Function 2.3 Monitor Function Figure 2-30 Logic Diagram of Line PT Broken Wire Supervision Logic of line PT broken wire supervision: 1. For device 7VU681, Line1 PT broken wire will be unavailable if the parameter 213 PT Connection of Line1 is set to Not Connected;...

  • Page 58: Busbar Voltage Sequence Supervision

    Function 2.3 Monitor Function 2.3.2 Busbar Voltage Sequence Supervision Busbar, busbar1 and busbar2 have the same voltage sequence supervision logic. Take busbar for example, the logic is as followed. If Va-b is prior to Vb-c, Vb-c is prior to Vc-a, Vc-a is prior to Va-b, the phase sequence is right, otherwise warning message 17993 Failure: Phase Sequence Busbar Voltage will be released in 5 seconds.

  • Page 59: Mounting And Commissioning

    Mounting And Commissioning This chapter is intended for experienced commissioning staff. They should be familiar with the commissioning of protection and control equipment, with operation of the power system network and with the safety rules and regulations. Certain adaptations of the hardware to the power system specifications may be necessary. Mounting and Connections Checking Connections Commissioning...

  • Page 60: Mounting And Connections

    Mounting And Commissioning 3.1 Mounting And Connections Mounting And Connections WARNING! Warning of improper transport, storage, installation, and application of the device. Non-observance can result in death, personal injury or substantial property damage. Trouble free and safe use of this device depends on proper transport, storage, installation, and application of the device according to the warnings in this instruction manual.

  • Page 61: Hardware Modification

    Mounting And Commissioning 3.1 Mounting And Connections Table 3-1 Changing setting groups using binary inputs Binary Input >Active Group >Set Group Bit 0 >Set Group Bit 1 Goup A Goup B Goup C Goup D Figure 3-1 Changing setting groups using binary inputs 3.1.2 Hardware Modifications 3.1.2.1 General...
  • Page 62 Mounting And Commissioning 3.1 Mounting And Connections uniformly for a rated current, i.e. one jumper each (X61 through X63) for each of the input transformers and additionally the common jumper X60. If nominal current ratings are to be changed exceptionally, then the new change must be notified to the device at addresses 252 CT Rated Secondary Current Line1;...

  • Page 63: Disassembly

    Mounting And Commissioning 3.1 Mounting And Connections 3.1.2.2 Disassembly Disassembly of the Device Note It is assumed for the following steps that the device is not in operation. Caution ! Caution when changing jumper settings that affect nominal values of the device As a consequence, the ordering number (MLFB) and the ratings that are stated on the nameplate do no longer match the actual device properties.

  • Page 64: Switching Elements On The Printed Circuit Boards

    Mounting And Commissioning 3.1 Mounting And Connections The following must be observed: • Disconnect the ribbon cable between the front cover and the C-CPU-2 board (in Figures Figure 3-2) at the front cover side. To disconnect the cable, push up the top latch of the plug connector and push down the bottom latch of the plug connector.
  • Page 65 Mounting And Commissioning 3.1 Mounting And Connections Figure 3-3 Processor Board C-CPU with Jumper Settings Required for the Board Configuration, of the Battery and Miniature Fuse Table 3-2 Jumper setting of the rated voltage of the integrated Power Supply on the C-CPU-2 processor module Jumper Nominal Voltage...
  • Page 66 Mounting And Commissioning 3.1 Mounting And Connections Table 3-3 Jumper position of the quiescent state of the Life contact on the C-CPU-2 processor module Jumper Nominal Voltage Open in the quiescent Closed in the quiescent Presetting state state (NO contact) (NC contact) Table 3-4 Jumper setting of the control voltages of binary inputs BI1 to BI5 on the C-CPU-2 processor...
  • Page 67 Mounting And Commissioning 3.1 Mounting And Connections Note For a direct connection to DIGSI with interface RS232 jumper X111 must be plugged in position 2-3. If there are no external terminating resistors in the system, the last devices on a RS485 bus must be configured via jumpers X103 and X104.
  • Page 68 Mounting And Commissioning 3.1 Mounting And Connections Input/output board C-I/O-1(7VU681) Figure 3-5 Input/output board C-I/O-1 with representation of the jumper settings required for the board configuration In the version 7VU681, binary output BO 6 on the Input/Output module C-I/O-1 can be configured as normally open or normally closed (see also overview diagrams in Appendix A.2).
  • Page 69 Mounting And Commissioning 3.1 Mounting And Connections Table 3-9 Jumper setting of pickup voltages of binary inputs BI8 to BI15 on Input/Output module module C- I/O-1 in the 7VU681 Binary inputs Jumper 17 VDC Threshold 73 VDC Threshold 154 VDC Threshold X21/X22 X23/X24 BI10...
  • Page 70 Mounting And Commissioning 3.1 Mounting And Connections Input/Output Board C-I/O-11 Figure 3-6 C-I/O-11 input/output board with representation of jumper settings required for checking configuration settings The set nominal currents of the current input transformers are to be checked on the input/output board C-I/O- 11.

  • Page 71: Interface Module

    Mounting And Commissioning 3.1 Mounting And Connections Table 3-12 Jumper setting of pickup voltages of binary inputs BI6、BI7 and BI16、BI17 on Input/Output module C- I/O-11 Binary Input Jumper 17 VDC Threshold 73 VDC Threshold 154 VDC Threshold BI16 BI17 Factory settings for devices with rated power supply voltages of 24 VDC to 125 VDC Factory settings for devices with power supply voltages of 110 VDC to 250 VDC and 115/230 VAC Use only with control voltages 220 to 250 VDC The jumpers X71, X72 through X73 serve for setting the bus address.
  • Page 72 Mounting And Commissioning 3.1 Mounting And Connections Figure 3-7 C-CPU-2 board with interface modules Please note the following: • The interface modules can only be replaced in devices for panel flush mounting and cubicle mounting. • Only interface modules can be used with which the device can be ordered from the factory also in accordance with the order number .
  • Page 73 Mounting And Commissioning 3.1 Mounting And Connections EN100 Ethernet Module (IEC 61850) The Ethernet interface module has no jumpers. No hardware modifications are required to use it. Interface Termination For bus-capable interfaces a termination is necessary at the bus for each last device, i.e. terminating resistors must be connected.

  • Page 74: Reassembly

    Mounting And Commissioning 3.1 Mounting And Connections It is possible to convert the R485 interface to a RS232 interface by changing the jumper positions and vice- versa. The jumper positions for the alternatives RS232 or RS485 (as in Figure 3-10) are derived from the following Table.

  • Page 75: Rack And Cubical Mounting

    Mounting And Commissioning 3.1 Mounting And Connections • Connections use the screw terminals on the rear side of the device in accordance the wiring diagram. For screw connections with forked lugs or direct connection, before inserting wires the screws must be tightened so that the screw heads are flush with the outer edge of the connection block.
  • Page 76 Mounting And Commissioning 3.1 Mounting And Connections Figure 3-11 Example of rack or cubicle mounting of a device (housing size 1/1) SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...

  • Page 77: Checking Connection

    Mounting And Commissioning 3.2 Checking Connection Checking Connection 3.2.1 Checking Data Connections of Serial Interfaces Pin-Assignment The tables of the following margin headings list the pin assignments for the different serial interfaces, the time synchronization interface and the Ethernet interface of the device. The position of the connections can be seen in the following figures.

  • Page 78: Termination

    Mounting And Commissioning 3.2 Checking Connection • TxD = Data Output • RxD = Data Input • RTS = Request to Send • CTS = Clear to Send • GND = Signal / Chassis Ground The cable shield is to be grounded at both ends. For extremely EMC-loaded environments the GND may be integrated into a separate individually shielded wire pair to improve the immunity to interference.

  • Page 79: Optical Fibres

    Mounting And Commissioning 3.2 Checking Connection Table 3-18 D-subminiature connector assignment of the time synchronization interface Pin No. Designation Signal Meaning P24_TSIG Input 24 V P5_TSIG Input 5 V M_TSIG Return Line M_TSYNC Return Line Shield Shield Potential – – P12_TSIG Input 12 V P_TSYNC...
  • Page 80 Mounting And Commissioning 3.2 Checking Connection Visual Check Check the cubicle and the devices for damage, condition of the connections etc., and device earthing. Secondary Check This test does not undertake to check the individual protection functions for the accuracy of their pick-up values and characteristic curves.

  • Page 81: Checking System Incorporation

    Mounting And Commissioning 3.2 Checking Connection Test Switch Check the functions of all test switches that are installed for the purposes of secondary testing and isolation of the device. Of particular importance are "test switches " in current transformer circuits. Be sure these switches short-circuit the current transformers when they are in the test mode.
  • Page 82 Mounting And Commissioning 3.2 Checking Connection • Check of the cubicle and the devices for damage; • Check of earthing of the cabinet and the device; • Check the external cabling for condition and completeness. Acquisition of Technical Power System Data For checking protection parameterization (allocation and settings) in accordance with power system require- ments, recording of technical data of the individual components is necessary in the primary system.
  • Page 83 Mounting And Commissioning 3.2 Checking Connection One should check in the operational annunciations that the VT mcb trip was detected. A requirement for this is that the auxiliary contact of the VT mcb is connected and correspondingly allocated. Close the VT mcb again: The above annunciations appear under the "going" operational annunciations, i.e. with the comment "OFF"...

  • Page 84: Commissioning

    Mounting And Commissioning 3.3 Commissioning Commissioning WARNING! Warning of dangerous voltages when operating an electrical device. Non-observance of the following measures can result in death, personal injury or substantial property damage. Only qualified people shall work on and around this device. They must be thoroughly familiar with all warnings and safety notices in this instruction manual as well as with the applicable safety steps, safety regulations, and precautionary measures.

  • Page 85: Test Mode/Transmission Block

    Mounting And Commissioning 3.3 Commissioning 3.3.1 Test Mode/Transmission Block If the device is connected to a central or main computer system via the SCADA interface, then the information that is transmitted can be influenced. This is only possible with some of the protocols available If Test mode is set ON, then a message sent by a SIPROTEC 4 device to the main system has an additional test bit.
  • Page 86 Mounting And Commissioning 3.3 Commissioning Figure 3-14 System interface test with dialog box: Generate indications - example Changing the Operating State On clicking one of the buttons in the column Action you will be prompted for the password No. 6 (for hardware test menus).

  • Page 87: Checking The Binary Inputs And Outputs

    Mounting And Commissioning 3.3 Commissioning 3.3.3 Checking the Binary Inputs and Outputs Prefacing Remarks The binary inputs, outputs, and LEDs of a SIPROTEC 4 device can be individually and precisely controlled in DIGSI. This feature is used to verify control wiring from the device to plant equipment (operational checks) during commissioning.
  • Page 88 Mounting And Commissioning 3.3 Commissioning Figure 3-15 Testing of the binary inputs and outputs - example Changing the Operating State To change the condition of a hardware component, click on the associated switching field in the Scheduled column. Password No. 6 (if activated during configuration) will be requested before the first hardware modification is allowed.

  • Page 89: Test User-Defined Functions

    Mounting And Commissioning 3.3 Commissioning Proceed as follows in order to check the binary inputs: • Activate in the system each of the functions which cause the binary inputs. • The response of the device must be checked in the Status column of the dialog box. To do this, the dialog box must be updated.

  • Page 90: Commissioning Test

    Mounting And Commissioning 3.3 Commissioning 3.3.5 Commissioning Test General Information WARNING! Warning of hazardous voltages when operating electrical devices Nonobservance of the following measure will result in fatality, severe personal injury or substantial material damage. Only qualified people shall work on and around this device. They must be thoroughly familiar with all warnings and safety notices in this instruction manual as well as with the applicable safety steps, safety regulations, and precautionary measures.

  • Page 91: Checking The Voltage Circuits

    Mounting And Commissioning 3.3 Commissioning • The limit values specified in the Technical Specifications (section 4.1) must not be exceeded, also not during testing and during commissioning. DANGER! Hazardous voltages during interruptions in secondary circuits of current transformers. Nonobservance of the following measure will result in fatality, severe personal injury or substantial material damage.

  • Page 92: Checking The Current Circuits

    Mounting And Commissioning 3.3 Commissioning Amplitudes Read out voltages in all three phases in the operational measured values and compare with the actual voltages. The voltage of the positive sequence system U1 must be approximately the same as the indicated phase volt- ages.

  • Page 93: Final Preparation Of The Device

    Mounting And Commissioning 3.4 Final Preparation of the Device Start Waveform Recording To trigger test measurement recording with DIGSI, click on Test in the left part of the window. Double click the entry Test Wave Form in the list of the window. Figure 3-16 Figure 3-40Triggering Oscillographic Recording with DIGSI - Example A test measurement record is immediately started.
  • Page 94 Mounting And Commissioning 3.4 Final Preparation of the Device → → The indication buffers are deleted under MAIN MENU Annunciation Set/Reset, so that in the future they only contain information on actual events and states (see also /1/). The counters in the switching statistics should be reset to the values that were existing prior to the testing (see also SIPROTEC 4 System Description /1/).

  • Page 95: Technical Data

    Technical Data This chapter provides the technical data of SIPROTEC 4 devices 7VU681 and individual functions, including the limiting values that must not be exceeded under any circumstances. The electrical and functional data for the device with all options, as well as the mechanical data with dimensional drawings, are provided in this ch- pater.

  • Page 96: General

    Technical Data 4.1 General General Current Input Recommended permanent operating -5~55 temperature Limiting temporary (transient) operating -20~70°C temperature Limit temperatures during transport -25~70°C Rated electrical parameters Rated auxiliary direct voltage: 220V,110V Tolerance +20%,-20% Alternating Voltage 80~125/3V(Un) Rated current 5 A,1 A (In) Rated frequency 50Hz,60Hz Overload capability::...

  • Page 97: Protection

    Technical Data 4.3 Functional Data 4.3.2 Protection Frequency Tolerance 50Hz, Frequency Range: 20Hz~66Hz 60Hz, Frequency Range:25Hz~66Hz Pick-Up Time < 50ms Delay Time tolerance < 10ms Voltage Tolerance 1%Uset or 0.5V Current Tolerance 1%Iset or 0.01In Current Dropout Value Approx. 0.95 Iset or 0.015In External BI filter time 10ms 4.3.3...
  • Page 98 Technical Data 4.3 Functional Data Conducted interference, 150 kHz to 30 MHz only auxiliary supply Limit class B IEC-CISPR 22 Radio interference field strength 30 MHz to 1000 MHz IEC-CISPR 22 Limit class B Insulation tests Standards: IEC60255-5-2000 Voltage test (100 % test) 2.5 kV (rms), 50 Hz All circuits except for auxiliary supply, binary inputs and...
  • Page 99 Literature SIPROTEC 4 System System Description; E50417-H1176-C151-B1 SIPROTEC DIGSI, Start UP; E50417-G1176-C152 -A3 DIGSI CFC, Manual; E50417-H1176-C098 -A9 SIPROTEC SIGRA 4, Manual; E50417-H1176-C070 SIPROTEC, 7VU683, User Manual C53000-G1176-C368-1, Release Date 07.2012...
  • Page 100 Literature SIPROTEC, 7VU683, User Manual C53000-G1176-C368-1, Release Date 07.2012...

  • Page 101: Appendix

    Appendix This appendix is primarily a reference for the experienced user. This section provides ordering information for the models of this device. Connection diagrams for indicating the terminal connections of the models of this device are included. Following the general diagrams are diagrams that show the proper connections of the devices to primary equipment in many typical power system configurations.

  • Page 102: Ordering Information

    Appendix A.1 Ordering Information Ordering Information 10 11 12 13 14 15 16 Power supply Transfer – – device Housing, Number of Binary Inputs and Outputs Pos. 6 Auto transfer device, Housing 19'', 17 BI, 18 BO, 1 Live Status Contact Rated current Pos.
  • Page 103 Appendix A.1 Ordering Information Measuring functions Pos. 13 Basic measured values Functionality Pos. 14 Designation Description Power Supply Transfer device (ATS:The 6th MLFB is 3; ATS:The 6th MLFB is 1) Basic Elements Protection function Measurement function SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...

  • Page 104: Terminal Assignments

    Appendix A.2 Terminal Assignments Terminal Assignments A.2.1 7VU681 terminal assignments SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...

  • Page 105: Default Settings

    Appendix A.3 Default Settings Default Settings When the device leaves the factory, a large number of LED indicators, binary inputs and outputs as well as function keys are already preset. They are summarized in the following table. A.3.1 LEDs A.3.1.1 7VU681 LED default configuration LEDs Function No.

  • Page 106: Binary Input

    Appendix A.3 Default Settings A.3.2 Binary Input A.3.2.1 7VU681 BI default configuration Binary Input Function No. Binary Input Allocated Function 17748 >BLOCK ATS 17759 >Manual.Restart No functions configured No functions configured No functions configured 17622 >CB1 52b CB1 Op/Cl 　 　...

  • Page 107: Default Display

    Appendix A.3 Default Settings Binary Output Function No. Allocated Function BO4 *) 17828 PhaseO/C-1 Trip 17830 PhaseO/C-2 Trip 　 17837 ZSOC-1 Trip 　 17839 ZSOC-2 Trip 17929 Ph.O/C-1Ene.Tr. 　 17931 Ph.O/C-2Ene.Tr. 　 17933 Ea.O/C-1Ene.Tr. Ea.O/C-2Ene.Tr. 　 　 　 17935 17762 CommandOpenCB3 17760 CommandOpenCB1...
  • Page 108 Appendix A.3 Default Settings When 0212 primary diagram setting to Single Bus, default display show below: SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...

  • Page 109: Dimension

    Appendix A.4 Dimension Dimension Figure A-1 7VU681 Dimensions for Panel Flush Mounting or Cubicle Mounting (housing size 1/1) ■ SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...
  • Page 110 Appendix A.4 Dimension SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...
  • Page 111 Index Index ATS 16 Busbar Voltage Sequence Supervision 59 Earth O/C for Busbar Energization Protection 55 Monitor Function 57 Phase O/C for Busbar Energization Protection 53 Phase Overcurrent Protection 49 Power Supply Transfer Between Busbars 32 Power Supply Transfer Between Lines 26 Power Supply Transfer between Transformers 38 Protection 48 PT Broken Wire Supervision 57...
  • Page 112 Index SIPROTEC, 7VU681, User Manual C53000-G1176-C368-1, Release Date 07.2012...

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