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Function

2.2 Protection

SIPROTEC, 7VU681, User Manual

C53000-G1176-C368-1, Release Date 07.2012

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

YES

2.PT broken wire cannot block zero sequence overcurrent protection.

3.After the trip signal is released, the dropout of the voltage signal cannot reset the trip signal, only current

dropout can reset the trip signal.

Summary of Contents for SIPROTEC 7VU681

Page 1: ...IPROTEC Multifunction Automatic Transfer System 7VU681 V4 60 User Manual C53000 G1176 C368 1 Preface Content Introduction 1 Functions 2 Mounting And Commissioning 3 Technical Data 4 Appendix A Literature ...

Page 2: ...ent editions We appreciate any suggested improvements We reserve the right to make technical improvements without notice Document Version V04 00 00 Release date 2012 07 Copyright Copyright Siemens AG 2012 Allrights reserved Dissemination or reproduction of this document or evaluation and communication of its contents is not authorized except where expressly permitted Violations are liable for dama...

Page 3: ...l of electrical facilities and power plants Applicability of this Manual This manual applies to SIPROTEC 4 Power Supply Transfer Device 7VU681 firmware version V4 6 Indication of Conformity 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...

Page 4: ...asures However it com prises important information that should be noted for purposes of personal safety as well as avoiding material damage Information that is highlighted by means of a warning triangle and according to the degree of danger is illustrated as follows DANGER Danger indicates that death severe personal injury or substantial material damage will result if proper precau tions are not t...

Page 5: ... or approved by Siemens The successful and safe operation of the device is dependent on proper handling storage installation opera tion and maintenance When operating an electrical equipment certain parts of the device are inevitably subject to dangerous voltage Severe personal injury or property damage may result if the device is not handled properly Before any connections are made the device mus...

Page 6: ...reen of a personal computer with operation software DIGSI are additionally written in italics The same applies to the options of the menus Message Designators for information which may be output by the relay or required from other devices or from the switch gear are marked in a monospace type style in quotation marks Deviations may be permitted in drawings and tables when the type of designator ca...

Page 7: ...re active or inactive at the same time Dynamic inputs edge triggered above with positive below with nega tive edge Formation of one analog output signal from a number of analog input signals Limit stage with setting address and parameter designator name Timer pickup delay T example adjustable with setting address and parameter designator name Timer dropout delay T example non adjustable Dynamic tr...

Page 8: ...Preface SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 8 ...

Page 9: ...2 33 2 1 3 3 Transfer Mode Busbar2 Busbar1 36 2 1 4 Power Supply Transfer between Transformers 37 2 1 4 1 Primary Diagram 37 2 1 4 2 Transfer Mode Transformer1 Transformer2 39 2 1 4 3 Transfer Mode Transformer2 Transformer1 41 2 1 5 User specified ATS 43 2 1 6 Load Shedding 43 2 1 7 Settings 44 2 1 8 Information List 45 2 2 Protection 47 2 2 1 Phase Overcurrent Protection 48 2 2 1 1 Settings 49 2 ...

Page 10: ...3 1 3 2 Rack and Cubical Mounting 75 3 2 Checking Connection 77 3 2 1 Checking Data Connections of Serial Interfaces 77 3 2 2 System Interface 77 3 2 3 Termination 78 3 2 4 Time Synchronization Interface 78 3 2 5 Optical Fibres 79 3 2 6 Checking Device Connection 79 3 2 7 Checking System Incorporation 81 3 3 Commissioning 84 3 3 1 Test Mode Transmission Block 85 3 3 2 Test System Interface 85 3 3 ...

Page 11: ... 2 Terminal Assignments 104 A 2 1 7VU681 Terminal Assignments 104 A 3 Default Settings 105 A 3 1 LEDs 105 A 3 1 1 7VU681 LED default configuration 105 A 3 2 Binary Input 106 A 3 2 1 7VU681BI default configuration 106 A 3 3 Binary Output 106 A 3 3 1 7VU681 BO default configuration 106 A 3 4 Default Display 107 A 4 Dimension 109 ...

Page 12: ...Contents SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 12 ...

Page 13: ...012 13 Introduction 1 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 1 1 Application Scope 14 1 2 Function Configuration 14 1 3 Characteristics 14 ...

Page 14: ...r supply transfer functions 7VU681 have the protection functions the protected object is the tie CB of the busbar When the standby power supply is connected to a fault source by a power supply transfer operation the standby power supply can be disconnected immediately When the tie CB is closing if a busbar is fault the tie CB will be opened immediately and the power supply transfer operation will ...

Page 15: ... Date 07 2012 15 Function 2 This chapter describes the individual functions available on the SIPROTEC 4 device 7VU681 It show the setting possibilities for each function in maximum configuration 2 1 ATS 16 2 2 Protection Function 47 2 3 Monitor Function 56 ...

Page 16: ...dby power supply it must confirm that the CB of operating power supply is opened 4 Transfer operation can be started only after ATS is Ready The control conditions of the ATS can be divided to 3 categories Ready condition blocking condition and pickup condition When all Ready conditions are fulfilled without any blocking condition ATS becomes Ready after a time delay 8938 Time Delay to Ready Statu...

Page 17: ...orts 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: ...mode starts other transfer modes will be blocked This action is to make sure that only one mode of ATS can transfer the power supply during the same time After the transfer operation is finished you can reset the ATS by manual reset and automatic reset The reset mode can be set via the parameter 0231 Manual Reset ATS When it is set Yes ATS will wait for the external reset signal 17759 Manual to re...

Page 19: ...681 User Manual C53000 G1176 C368 1 Release Date 07 2012 19 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 ...

Page 20: ... single point signal If the default routing of CB is changed to single point signal the default display can be pdated with the single point signal Otherwise the display of CB positions on the display panel is incorrect For example CB1 position is changed to a single point signal 17621 CB1 52a routed with BI1 H and 17622 CB1 52b routed with BI1 L or 17621 CB1 52a routed with BI1 L and 17622 CB1 52b...

Page 21: ...S 2 1 1 1 Settings Addr Parameter Setting Options Default Setting Comments 0159 Automatic Transfer System Disabled Enabled Enabled 0160 Protection Function Disabled Enabled Disabled Power System Data 1 Power System Data 0211 Rated Frequency 50Hz 60Hz 50Hz 0213 PT Connection of Line1 Va transformer Vb transformer Vc transformer Va b transformer Vb c transformer Vc a transformer Not connected Va b t...

Page 22: ... Data 1 VT s 0231 PT Rated Primary Voltage Line1 1 0 1200 0 110 0KV 0232 PT Rated Secondary Voltage Line1 80 125 100V 0233 PT Rated Primary Voltage Line2 1 0 1200 0 110 0KV 0234 PT Rated Secondary Voltage Line2 80 125 100 V 0237 PT Rated Primary Voltage Busbar1 1 0 1200 0 110 0 KV 0238 PT Rated Secondary Voltage Busbar1 80 125 100V 0239 PT Rated Primary Voltage Busbar2 1 0 1200 0 110 0 KV 0240 PT ...

Page 23: ...er System Data 1 Power System Data Addr Parameter Setting Options Default Setting Comments No Information Type Function No 17621 CB1 52a SP 17622 CB1 52b SP 17623 CB2 52a SP 17624 CB2 52b SP 17625 CB3 52a SP 17626 CB3 52b SP 17809 CB4 52a SP 17813 CB4 52b SP 17810 CB5 52a SP 17814 CB5 52b SP 17811 CB6 52a SP 17815 CB6 52b SP 17812 CB7 52a SP 17816 CB7 52b SP 17864 NonManu Op CB1 SP 17865 NonManu O...

Page 24: ...dCloseCB5 OUT 200 17773 CommandCloseCB7 OUT 200 17774 Fail Open CB1 OUT 17775 Fail Open CB2 OUT 17776 Fail Open CB3 OUT 17779 Fail Open CB6 OUT 17781 Fail Close CB1 OUT 17782 Fail Close CB2 OUT 17783 Fail Close CB3 OUT 17784 Fail Close CB4 OUT 17785 Fail Close CB5 OUT 17787 Fail Close CB7 OUT 18005 Warn CB1Unavai OUT 18006 Warn CB2Unavai OUT 18007 Warn CB3Unavai OUT 18008 Warn CB4Unavai OUT 18009 ...

Page 25: ...tion 2 1 ATS SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 25 2 1 2 Power Supply Transfer Between Lines 2 1 2 1 Primary Diagram Figure 2 5 Primary Diagram of Transfer Mode Line1 Line2 ...

Page 26: ...dition 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 Once the operating power supply is lost and the two buses voltages are dead ATS starts to trip the CB of the operating line and close the CB of the sta...

Page 27: ...SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 27 2 1 2 2 Transfer Mode Line1 Line2 Line1 is supplying power while Line2 standing by Figure 2 7 Ready and UnReady Logic of Transfer Mode Line1 Line2 ...

Page 28: ...Voltage will not be taken as the Ready condition of Line1 Line2 anymore 2 The voltage thresholds values are phase phase value not phase value 3 The dropout threshold of live voltage is 0 95 4 17864 NonManu Op CB1 will be checked only when it is configured to a BI in DIGSI matrix Otherwise the ATS logic will not check this signal Above notes are valid in next logic diagrams And they will not be men...

Page 29: ...8 1 Release Date 07 2012 29 2 1 2 3 Transfer Mode Line2 Line1 Line2 is supplying power while Line1 standing by 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 ...

Page 30: ...6 C368 1 Release Date 07 2012 30 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 ...

Page 31: ... 2 1 ATS SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 31 2 1 3 Power Supply Transfer Between Busbars 2 1 3 1 Primary Diagram Figure 2 11 Primary Diagram of Transfer Mode Busbar1 Busbar2 ...

Page 32: ...imary 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: ...EC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 33 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 ...

Page 34: ...Function 2 1 ATS SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 34 Figure 2 14 Pickup Action and Load Shifting Logics of Transfer Mode Busbar1 Busbar2 ...

Page 35: ...ce for the third and the forth busbars After ATS closes the CB3 Load Shifting function will be started and just release the command of opening CB6 when it gets the Ready signal of the neighbor ATS device The neighbor ATS device is responsible to transfer the power supply between third busbar and fourth busbar 3 If the parameter 0229 Busbar1 Busbar2 Load Shifting is set to OFF the parameter 8911 Bu...

Page 36: ...dy 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 2 The logic of Load Shifting of Transfer Mode Busbar2 Busbar1 is the same with that of Transfer Mode Busbar1 Busbar...

Page 37: ...S SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 37 2 1 4 Power Supply Transfer between Transformers 2 1 4 1 Primary Diagram Figure 2 17 Primary Diagram of Transfer Mode Transformer1 Transformer2 ...

Page 38: ...Function 2 1 ATS SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 38 Figure 2 18 Primary Diagram of Transfer Mode Transformer2 Transformer1 ...

Page 39: ...Manual C53000 G1176 C368 1 Release Date 07 2012 39 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 ...

Page 40: ... 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: ...012 41 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 ...

Page 42: ...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 2 8926 Transformer Energization Time is the energized time of the transformer when connected to the power supply without load ...

Page 43: ...operation with analog input Please refer to the DIGSI CFC manual for the details 2 1 6 Load Shedding Load shedding function has 2 stages with different tripping delay both are independent with ATS logics Load shedding can be started by ATS succeeded signals with parameter control and external signals without parameter control When you define own transfer logics the transfer successful result can b...

Page 44: ...r1 Busbar2 ON OFF OFF 0226 Transfer Mode Busbar2 Busbar1 ON OFF OFF 0227 Transfer Mode Transformer1 Transformer2 ON OFF OFF 0228 Transfer Mode Transformer2 Transformer1 ON OFF OFF 0229 Busbar1 Busbar2 Load Shifting ON OFF OFF 0230 Busbar2 Busbar1 Load Shifting ON OFF OFF 8909 Line1 Line2 Load Shedding Yes No No 8910 Line2 Line1 Load Shedding Yes No No 8911 Busbar1 Busbar2 Load Shedding Yes No No 8...

Page 45: ...fting Time Delay 0 05 600 00 5sec 8926 Transformer Energization Time 0 05 600 00 0 50sec A Setting Group Load Shedding 8940 Load Shedding Active Time 0 1 60000 00 100 0sec 8941 Load Shedding Current Threshold 0 02 5 00 oo 1 00I In 8942 Load Shedding Time Delay 1 0 1 600 00 10 00sec 8943 Load Shedding Time Delay 2 0 1 600 00 20 00sec Addr Information Type Function No Info No 17748 BLOCK ATS SP 1775...

Page 46: ...2 Busbar1 Initiated OUT 17716 Busbar2 Busbar1 Pickup OUT 17801 Busbar2 Busbar1 Succeeded OUT 200 32 17913 Busbar2 Busbar1 Failed OUT 200 38 17753 BLOCK Transformer1 Transformer2 SP 17792 Transformer1 Transformer2 is Blocked OUT 17687 Transformer1 Transformer2 is Active OUT 17697 Transformer1 Transformer2 is Ready OUT 17707 Transformer1 Transformer2 Initiated OUT 17717 Transformer1 Transformer2 Pic...

Page 47: ... a rating of 1A rated secondary current When the rated secondary current is 5A the values should be multiplied by 5 17915 Transformer2 Transformer1 Failed OUT 200 39 17804 Load Shifting Pickup OUT 17805 Load Shifting Succeeded OUT 17806 Load Shifting Failed OUT 18003 Busbar Load Shifting is Actived OUT 18004 Neighboring ATS is Ready SP 17900 Start Load Shedding Line1 SP 17901 Start Load Shedding L...

Page 48: ...tection 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 2 PT broken wire cannot block the phase overcurrent protection 3 After the trip signal is released the dropout of the voltage signal cannot reset the trip signal only current dropout can reset the trip signal...

Page 49: ...voltage Threshold 1V 125V 8 V Protection Functions Phase O C 9001 Compound Voltage Control YES NO YES 9004 Phase Overcurrent 1 0 1A 35 A 3 A 9005 Phase Overcurrent 1 Time Delay 0s 60s 0 5s 9006 Phase Overcurrent 2 0 1A 35 A 5 A 9007 Phase Overcurrent 2 Time Delay 0s 60s 0 1s No Information Type Function No Inf NO 17822 Block PhaseO C SP 17939 PhaseO C ACTIVE OUT 17823 PhaseO C OFF OUT 17824 PhaseO...

Page 50: ...nt 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 2 PT broken wire cannot block zero sequence overcurrent protection 3 After the trip signal is released the dropout of the voltage signal cannot reset the trip signal only current dropout can reset the ...

Page 51: ... 9012 3U0 Overvoltage Threshold 1V 200V 30V Protection Functions Zero Sequ O C 9011 3U0 Control Yes No Yes 9013 Zerosequ Overcurrent 1 0 1A 35A 3A 9014 Zerosequ Overcurrent 1 Time Delay 0s 60s 0 5s 9015 Zerosequ Overcurrent 2 0 1A 35A 5A 9016 Zerosequ Overcurrent 1 Time Delay 0s 60s 0 1s No Information Type Function No Inf No 17831 Block ZSOC SP 17940 ZSOC ACTIVE OUT 17832 ZSOC OFF OUT 17833 ZSOC ...

Page 52: ...C368 1 Release Date 07 2012 52 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 ...

Page 53: ...tings 2 2 3 2 Information List Addr Settings Setting Options Default Setting Comments Protection Functions General 9020 Phase O C for Busbar Energization ON OFF OFF 9019A Active time for Busbar Energization 0 01s 600 00s 5 00s Protection Functions Voltage Control 9002 Ph Ph Undervoltage Threshold 1V 125V 0V 70V 9003 U2 Overvoltage Threshold 1V 125V 8V Protection Functions Ph O C Energiz 9021 Compo...

Page 54: ... 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 The running time is set by the parameter 9019A Active Time for Busbar Energization 2 Earth voltage contorl can be enabled or disabled by setting the parameter 9031 3U0 Control to YES or NO 3 PT broken wire cannot block earth overcurrent for busbar energization p...

Page 55: ... 3U0 Overvoltage Threshold 1V 200V 30V Protection Functions Ea O C Energiz 9031 3U0 Control Yes No Yes 9033 Earth O C 1 for Busbar Energ 0 1A 35A 2A 9034 Earth O C 1 Time Delay for Busbar Energization 0s 60s 0 5s 9035 Earth O C 2 for Busbar Ener gization 0 1A 35A 4A 9036 Earth O C 2 Time Delay for Busbar Energ 0s 60s 0 1s No Information Type Funcion No Inf No 17938 BLK Ea O C En SP 17945 Ea O C En...

Page 56: ... 3 1 PT Broken Wire Supervision PT broken wire supervision contains busbar PT broken wire supervision and line PT broken wire supervision Figure 2 29 Logic Diagram of Busbar PT Broken Wire Supervision Logic of busbar PT broken wire supervision 1 UN is the secondary rated busbar voltage that is 236 PT Rated Secondary Voltage Busbar 2 If Segment Single Busbar primary diagram is selected then U1N and...

Page 57: ...nnection of Line1 is set to Va b transformer Vb c transformer or Vc a transformer the value of dead line equals the value of 8903 Line Dead Voltage Threshold if the parameter 213 PT Connection of Line1 is set to Va transformer Vb transformer or Vc transformer the value of dead line equals the value of 8903 Line Dead Voltage Threshold 1 732 It is same with Line2 2 3 1 1 Settings 2 3 1 2 Information...

Page 58: ...ht otherwise warning message 17993 Failure Phase Sequence Busbar Voltage will be released in 5 seconds The precondition of this logic is the phase phase voltages are 80 UN UN is the value of 236 PT Rated Secondary Voltage Busbar 2 3 2 1 Settings Please reference Power System Data 1 to get other settings 2 3 2 2 Information List Addr Settings Setting Options Default Setting Comments Supervision 910...

Page 59: ...hould 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 3 1 Mounting and Connections 60 3 2 Checking Connections 77 3 3 Commissioning 84 3 4 Final Preparation of the Device 93 ...

Page 60: ...its are given in Appendix A 3 It must be checked that the setting configuration of the Power System Data 1 Section 2 5 corresponds with the connections Currents Voltages Connection diagrams are shown in the chapter 2 Function Binary Inputs and Outputs Allocation possibilities of binary inputs and outputs i e the individual matching to the system are described in the SIPROTEC 4 System Description 1...

Page 61: ...per setting allocation to the rated voltage ranges and their location on the PCB are described in this Section under the margin title Processor Board C CPU 2 When the device is delivered these jumpers are set according to the name plate sticker Generally they need not be altered Life Contact The life contact of the device is a changeover contact from which either the opener or closer can be connec...

Page 62: ...s necessary to rearrange a jumper For which relay on which board this applies is described in this Section under Input Output Board C I O 1 Input Output Board C I O 10 and Input Output Board C I O 11 Replacing Interface The serial interfaces can only be exchanged in the versions for panel flush mounting and cubicle mounting Which interfaces can be exchanged and how this is done is described in thi...

Page 63: ...ate to electrostatic sensitive devices EGB In addition to this the following tools are required screwdriver with a 5 to 6 mm wide tip a Philips screwdriver size 1 5 mm socket or nut driver Unfasten the screw posts of the D subminiature connectors on the back panel at location A and C This activity does not apply if the device is for surface mounting If the device has additional communication inter...

Page 64: ...in amount of force is required in order to remove the C CPU 2 module due to the existing plug connectors Check the jumpers in accordance with Figures 3 2 to 3 9 and the following information and as the case may be change or remove them Figure 3 2 Front view of a 7VU681 housing size 1 1 after removal of the front cover simplified and scaled down 3 1 2 3 Switching Elements on the Printed Circuit Boa...

Page 65: ...he 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 24 to 48 VDC 60 to 125 VDC 110 to 250 VDC 115 to 230 VAC X51 not used 1 2 2 3 X52 not used 1 2 and 3 4 2 3 X53 not used 1 2 2 3 X55 not used not used 1 2 cannot be changed interchangeable Fuse T4H250V T2H250V ...

Page 66: ...TS flow control on the C CPU 2 processor module 1 Default setting of releases 7VU68 BB Jumper setting 2 3 The connection to the modem is usually established with a star coupler or fibre optic converter Therefore the modem control signals according to RS232 standard DIN 66020 are not available Modem signals are not required since the connection to the SIPROTEC 4 devices is always operated in the ha...

Page 67: ...inating Resistors of interface RS485 on the C CPU 2 processor Note Both jumpers must always be plugged in the same way Jumper X90 has currently no function The factory setting is 1 2 The terminating resistors can also be connected externally e g to the connection module In this case the terminating resistors located on the RS485 or PROFIBUS interface module or directly on the PCB of the processor ...

Page 68: ...resentation 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 Table 3 8 7VU681 Jumper position for the contact type of the relay for BO6 Jumper Open in quiescent state NO Closed in quiescent state NC Presetting X40 1 ...

Page 69: ...and must not be changed The following table lists the jumper presetting Mounting locations of modules are shown in Figures 3 2 Table 3 10 Module address jumper setting of input output module C I O 1 for 7VU681 Jumpers X71 X72 and X73 on the input output board C I O 10 are used to set the bus address and must not be changed The following Table lists the jumper presettings Table 3 11 Jumper settings...

Page 70: ...ed on the input output board C I O 11 All jumpers must be set for one nominal current i e respectively one jumper X61 to X63 for each input transformer and additionally the common jumper X60 Jumper X64 is set to the required rated current for IE current input 1A or 5A jumper X65 set IE There are 2 measuring inputs for the single phase measuring location Ix_Line 1 and Ix_Line2 The jumpers X61 X63 a...

Page 71: ... address Their position may not be changed The following table shows the preset jumper positions Installation Place Table 3 13 Jumper settings of module addresses of the input output module C I O 11 Left Slot 33 No 4 Table 3 14 Jumper settings of module addresses of the input output module C I O 11 right Slot 33 No 3 3 1 2 4 Interface Module Replacing Interface Modules The interface modules are lo...

Page 72: ...ace 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 Table 3 15 Replacing interface modules Interface Mounting Location Interface Replacement Module System Interface B Only interface modules that can be ordered in our facilities via ...

Page 73: ... PCB of the C CPU 2 board see margin title C CPU 2 Processor Board Table 3 3 The module for the RS485 interface is shown in Figure 3 9 the module for the Profibus interface in Figure 3 10 On delivery the jumpers are set so that the terminating resistor are disconnected Both jumpers of a module must always be plugged in the same way Figure 3 8 Position of Terminating Resistors and the Plug in Jumpe...

Page 74: ...front panel plug connector Press the plug connector interlocks together Replace the front panel and screw it tightly to the housing Replace the covers again Screw the interfaces on the rear panel of the device tight again This activity does not apply if the device is for surface mounting 3 1 3 Mounting 3 1 3 1 Panel Flush Mounting For the 1 1 housing size Figure 3 14 there are six covers and six h...

Page 75: ... corners of the front cover for size 1 1 the two covers located centrally at the top and bottom also have to be removed Thus the 4 respectively 6 slots in the mounting flange are revealed and can be accessed Fasten the device to the mounting brackets with four or six screws Mount the six covers Tighten fast the eight screws of the angle brackets in the rack or cubicle Connect the ground on the rea...

Page 76: ...ounting And Commissioning 3 1 Mounting And Connections SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 76 Figure 3 11 Example of rack or cubicle mounting of a device housing size 1 1 ...

Page 77: ...following figures Figure 3 12 9 pin D subminiature female connectors Figure 3 13 Ethernet connector and IEC 60870 5 1 redundant interface 3 2 2 System Interface For versions equipped with a serial interface to a control center you must check the data connection The visual check of the assignment of the transmission and reception channels is of particular importance With RS232 and fibre optic inter...

Page 78: ...esistors connected and that the other devices on the bus do not The jumpers for the terminating resistors are located on the interface module RS485 see Figure 3 9 or on the PROFIBUS module RS485 see Figure 3 10 The terminating resistors can also be connected externally In this case the terminating resistors located on the module must be disabled If the bus is extended make sure again that only the...

Page 79: ...ust be tested and ensured This includes wiring check and functionality as per drawings visual assessment of the pro tection system and a simplified functional check of the protection device Auxiliary Voltage Supply Before the device is connected for the first time to voltage it should be have been at least 2 hours in its oper ating room in order to attain temperature equilibrium and to avoid dampn...

Page 80: ...ikely that the asymmetry monitoring will fre quently pickup This is of no concern because the condition of steady state measured values is monitored which under normal operating conditions are symmetrical under short circuit conditions these monitorings are not effective Note If during dynamic testing measured values are connected from or reduced to zero a sufficiently high value should be present...

Page 81: ...ons and settings in accordance with the power system require ments is an important test step here The interface wide incorporation check in the power system results on the one hand in testing of cubicle wiring and drawing record in accordance with functionality and on the other hand the correctness of cabling between transducer or transformer and protection device Auxiliary Voltage Supply Check th...

Page 82: ...nsformation ratio and polarity Burden measurement Checking the functions of test switches if used for secondary testing Measuring transducers Measuring transducer connection Binary Inputs and Outputs For more information see also Section 3 3 Setting of binary inputs Check and match jumper allocation for pickup thresholds see Section 3 1 Check the pickup threshold if possible with a variable DC vol...

Page 83: ...he 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 e g L1 MCB Closed OFF If one of the indications does not appear check the connection and allocation of these signals If the ON and OFF messages are exchanged then the breaker auxiliary contact type sho...

Page 84: ...he device is re energized The limit values given in Technical Data must not be exceeded neither during testing nor during commissioning When testing the device with secondary test equipment make sure that no other measurement quantities are connected and that the TRIP command lines and possibly the CLOSE command lines to the circuit breakers are interrupted unless otherwise specified DANGER Hazard...

Page 85: ...er evolving from operating the equipment e g circuit breakers disconnectors by means of the test function Non observance of the following measure will result in death severe personal injury or substantial property damage Equipment used to allow switching such as circuit breakers or disconnectors is to be checked only during com missioning Do not under any circumstances check them by means of the t...

Page 86: ...as the window is open further tests can be performed Test in Message Direction For all information that is transmitted to the central station test in Status Scheduled the desired options in the list which appears Make sure that each checking process is carried out carefully without causing any danger see above and refer to DANGER Click on Send in the function to be tested and check whether the tra...

Page 87: ...Thereby all annunciation buffers are erased If required these buffers should be extracted with DIGSI prior to the test The hardware test can be carried out using DIGSI in the Online operating mode Open the Online directory by double clicking the operating functions for the device appear Click on Test the function selection appears in the right half of the screen Double click in the list view on Ha...

Page 88: ...any of the output relays is initiated all output relays are separated from the internal device functions and can only be operated by the hardware test function This means that e g a TRIP command coming from a control command from the operator panel to an output relay cannot be executed Proceed as follows in order to check the output relay Ensure that the switching of the output relay can be execut...

Page 89: ...by the hardware test function This means e g that no LED is illuminated anymore by a device function or by pressing the LED reset button Updating the Display During the opening of the dialog box Hardware Test the operating states of the hardware components which are current at this time are read in and displayed An update occurs for each hardware component if a command to change the condition is s...

Page 90: ...injury or substantial property damage Primary test may only be carried out by qualified personnel who are familiar with the commissioning of protection systems the operation of the plant and the safety rules and regulations switching earthing etc Safety Instructions All relevant safety rules and regulations e g VDE 105 VBG4 or comparable national regulations must be complied with Before undertakin...

Page 91: ...on for direct trip of the excitation Check the parameter setting if need temporarily setting in commissioning change to temporarily setting Check the binary input and measurement input The mode of power support transfer is same with test scheme according to the requirement of site Test Please perform the following preparatory commissioning steps Manual remote Open CB Check device Binary output LED...

Page 92: ...of the rated transformer current Tests with generator currents of more than 20 are not normally required for digital protection Amplitude Values The currents can be read out from the device front panel or from the PC via the operator interface under operational measured values and compared with the actual measured values If significant deviations are found the CT connections are not correct 3 3 8 ...

Page 93: ...radeViewer 3 4 Final Preparation of the Device Firmly tighten all screws Tighten all terminal screws including those that are not used Caution Inadmissable tightening torques Non observance of the following measure can result in minor personal injury or property damage The tightening torques must not be exceeded as the threads and terminal chambers may otherwise be damaged In case service settings...

Page 94: ...asurement Reset Press the ESC key several times if necessary to return to the default display The default display appears in the display e g display of operation measured values Clear the LEDs on the front panel by pressing the LED key so that they only show real events and states In this context also output relays probably memorized are reset Pressing the LED key also serves as a test for the LED...

Page 95: ... 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 4 1 General 96 4 2 Rated electrical parameter 96 4 3 Technical Data 96 ...

Page 96: ...ge 220V 110V Tolerance 20 20 Alternating Voltage 80 125 3V Un Rated current 5 A 1 A In Rated frequency 50Hz 60Hz Overload capability Current overload capability 4 IN continuous 30 IN for 10 s 100 IN for 1 s Voltage path overload capacity 230 V continuous Power consumption Current Approx 0 3 VA In 5 A Approx 0 05 VA In 1 A Voltage Approx 0 10 VA Phase Power Consumption Quiescent Approx 8 W Energize...

Page 97: ...ation with RF field frequency sweep IEC 60255 22 3 IEC 61000 4 3 class III 10 V m and 20 V m 80 MHz to 1000 MHz 80 AM 1 kHz 10 V m 800 MHz to 960 MHz 80 AM 1 kHz 20 V m 1 4 GHz to 2 0 GHz 80 AM 1 kHz Fast transients interference bursts IEC 60255 22 4 and IEC 61000 4 4 class IV 4 kV 5 50 ns 5 kHz burst length 15 ms repetition rate 300 ms both polarities R i 50 Ω test duration 1 mIn High energy surg...

Page 98: ...5 5 2000 Voltage test 100 test All circuits except for auxiliary supply binary inputs and communication interfaces 2 5 kV rms 50 Hz Auxiliary voltage and binary inputs 100 test 3 5 kV RS485 RS232 rear side communication interfaces and time synchronization interface 100 test 500 V rms 50 Hz Impulse voltage test type test All circuits except for communication interfaces and time synchronization inte...

Page 99: ...1176 C368 1 Release Date 07 2012 99 Literature 1 SIPROTEC 4 System System Description E50417 H1176 C151 B1 2 SIPROTEC DIGSI Start UP E50417 G1176 C152 A3 3 DIGSI CFC Manual E50417 H1176 C098 A9 4 SIPROTEC SIGRA 4 Manual E50417 H1176 C070 ...

Page 100: ...Literature SIPROTEC 7VU683 User Manual C53000 G1176 C368 1 Release Date 07 2012 100 ...

Page 101: ...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 Tables with all settings and all information available in this device equipped with all options are provided Default settings are also given A 1 Ordering Information 102 A 2 Termin...

Page 102: ...E Region specific Default Language Settings and Function Versions Pos 10 Region World 50 60 Hz IEC ANSI Language English B China 50 60 Hz Chinese W System Interfaces or Analog Output Port B Pos 11 No system interface 0 IEC 60870 5 103 Protocol electrical RS 232 1 IEC 60870 5 103 Protocol RS485 2 IEC 60870 5 103 Protocol Optical 820 nm ST Connector 3 For further interface options see the following ...

Page 103: ...00 G1176 C368 1 Release Date 07 2012 103 Measuring functions Pos 13 Basic measured values 1 Functionality Pos 14 Designation Description A Basic Elements Power Supply Transfer device ATS The 6th MLFB is 3 ATS The 6th MLFB is 1 Protection function Measurement function ...

Page 104: ...Appendix A 2 Terminal Assignments SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 104 A 2 Terminal Assignments A 2 1 7VU681 terminal assignments ...

Page 105: ...LED1 17760 CommandOpenCB1 LED2 17761 CommandOpenCB2 LED3 17762 CommandOpenCB3 LED4 17767 CommandCloseCB1 LED5 17768 CommandCloseCB2 LED6 17769 CommandCloseCB3 LED7 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 17935 Ea O C 2Ene Tr LED8 18013 ATS is Ready LED9 17713 L1 L2 Pickup 17714 L2 L1 Pickup 17715...

Page 106: ...No functions configured BI4 No functions configured BI5 No functions configured BI6 17622 CB1 52b CB1 Op Cl BI7 17621 CB1 52a CB1 Op Cl BI8 17624 CB2 52b CB2 Op Cl BI9 17623 CB2 52a CB2 Op Cl BI10 17626 CB3 52b CB3 Op Cl BI11 17625 CB3 52a CB3 Op Cl BI12 No functions configured BI13 No functions configured BI14 17864 NonManu Op CB1 BI15 17865 NonManu Op CB2 BI16 No functions configured BI17 No fun...

Page 107: ...17839 ZSOC 2 Trip 17929 Ph O C 1Ene Tr 17931 Ph O C 2Ene Tr 17933 Ea O C 1Ene Tr 17935 Ea O C 2Ene Tr BO5 17762 CommandOpenCB3 BO6 17760 CommandOpenCB1 BO7 No functions configured BO8 No functions configured BO9 No functions configured BO10 17767 CommandCloseCB1 BO11 17768 CommandCloseCB2 BO12 17769 CommandCloseCB3 BO13 17761 CommandOpenCB2 BO14 No functions configured BO15 No functions configured...

Page 108: ...Appendix A 3 Default Settings SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 108 When 0212 primary diagram setting to Single Bus default display show below ...

Page 109: ...Appendix A 4 Dimension SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 109 A 4 Dimension Figure A 1 7VU681 Dimensions for Panel Flush Mounting or Cubicle Mounting housing size 1 1 ...

Page 110: ...Appendix A 4 Dimension SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 110 ...

Page 111: ...Broken Wire Supervision 57 T Transfer Mode Busbar1 Busbar2 Busbar1 is supplying power while Busbar2 standing by 34 Transfer Mode Busbar2 Busbar1 Busbar2 is supplying power while Busbar1 standing by 37 Transfer Mode Line1 Line2 Line1 is supplying power while Line2 standing by 28 Transfer Mode Line2 Line1 Line2 is supplying power while Line1 standing by 30 Transfer Mode Transformer2 Transformer1 Tra...

Page 112: ...Index SIPROTEC 7VU681 User Manual C53000 G1176 C368 1 Release Date 07 2012 112 ...

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