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Siemens 7SR10 Argus Series Manual

Overcurrent relay
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Reyrolle
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Summary of Contents for Siemens 7SR10 Argus Series

  • Page 1 Reyrolle Protection Devices 7SR10 Argus Overcurrent Relay...
  • Page 2 Siemens Protection Devices Limited...
  • Page 3 Limited. No part of this document shall be reproduced or modified or stored in another form, in any data retrieval system, without the permission of Siemens Protection Devices Limited, nor shall any model or article be reproduced from this document unless Siemens Protection Devices Limited consent.
  • Page 4 Limited. No part of this document shall be reproduced or modified or stored in another form, in any data retrieval system, without the permission of Siemens Protection Devices Limited, nor shall any model or article be reproduced from this document unless Siemens Protection Devices Limited consent.

  • Page 5: Table Of Contents

    Voltage Protection: Negative Phase Sequence Overvoltage (47NPS) ........45 3.4.11 Voltage Protection: Neutral Overvoltage (59N) ..............46 3.4.12 Voltage Protection: Under/Over Frequency (81) ..............47 3.4.13 Power Protection: Power (32) ..................... 48 ©2018 Siemens Protection Devices Limited Chapter 1 Page 2 of 77...
  • Page 6 6.7 Real Time Clock ..........................76 6.7.1 Time Synchronisation – Data Communication Interface ............76 6.7.2 Time Synchronisation – Binary Input ................... 76 6.8 Settings Groups ..........................76 6.9 Password Feature..........................76 ©2018 Siemens Protection Devices Limited Chapter 1 Page 3 of 77...
  • Page 7 Logic Diagram: Total Harmonic Distortion Supervision Element (81THD) ........... 64 Figure 5-4 Logic Diagram: VT Supervision Function (60VTS) ................65 Figure 5-5 Logic Diagram: CT Supervision Function (60CTS) ................66 ©2018 Siemens Protection Devices Limited Chapter 1 Page 4 of 77...
  • Page 8 System Information Icon ........................69 Figure 6-5 System Information Icon ........................70 Figure 6-6 Communication to Multiple Devices from Control System using RS485 ..........71 Figure 6-7 Energy Direction Convention......................74 ©2018 Siemens Protection Devices Limited Chapter 1 Page 5 of 77...
  • Page 9 7SR10 Description of Operation List of Tables Table 2-1 Summary of 7SR10 Argus Overcurrent Relay Configurations ............. 14 Table 6-1 Operation Mode ..........................75 ©2018 Siemens Protection Devices Limited Chapter 1 Page 6 of 77...
  • Page 10 The following notational and formatting conventions are used within the remainder of this document: • Setting Menu Location MAIN MENU>SUB-MENU • Setting: Elem name -Setting Setting value: value • • Alternatives: [1st] [2nd] [3rd] ©2018 Siemens Protection Devices Limited Chapter 1 Page 7 of 77...

  • Page 11: Section 1: Introduction

    ® communication facility. 7SR10 is a member of Siemens Reyrolle protection devices Argus product family. The 7SR10 overcurrent relay consists of non directional functions and with additional voltage inputs providing directional functions (based on the ordering option).

  • Page 12: Ordering Options

    Only with position 7 = 3 Special version for Turkey market with thermal withstand capability of 500A (5A CT), 1 sec and supporting Turkish scripts. Available only with position 8 = 1 ©2018 Siemens Protection Devices Limited Chapter 1 Page 9 of 77...
  • Page 13 Standard version – plus Autoreclose Additional Functionality No Additional Functionality 4CT is configured as 3PF + EF 4CT is configured as 3PF + SEF Not available on SEF input ©2018 Siemens Protection Devices Limited Chapter 1 Page 10 of 77...

  • Page 14: Functional Diagram

    37 SEF 50SEF 51SEF HBL2 (x2) (x2) (x2) (x4) (x4) (x4) (x4) (x4) (x4) (x2) (x2) (x4) T/CCS (x4) Optional Version D software Fig 2. 7SR10 Overcurrrent Relay (Directional) ©2018 Siemens Protection Devices Limited Chapter 1 Page 11 of 77...

  • Page 15: Terminal Diagram

    BI 6 Term. Fig 3. Terminal/Wiring Diagram of 7SR10 Non-Directional Overcurrent Relay NOTE: For DC variants, connect the positive and negative terminals to X3: L and X3: N terminals respectively. ©2018 Siemens Protection Devices Limited Chapter 1 Page 12 of 77...
  • Page 16 BI 6 Term Fig 4. Terminal/Wiring Diagram of 7SR10 Directional Overcurrent Relay NOTE: For DC variants, connect the positive and negative terminals to X3: L and X3: N terminals respectively. ©2018 Siemens Protection Devices Limited Chapter 1 Page 13 of 77...

  • Page 17: Section 2: Hardware Description

    6 x Binary Outputs (Terminal X4) 3 x Voltage Inputs (Terminal X7) 3 x Binary Input (Terminal X6) Communication and Power Supply module With control push buttons RS485 (Terminal X2) Power supply (Terminal X3) ©2018 Siemens Protection Devices Limited Chapter 1 Page 14 of 77...

  • Page 18: Front Fascia

    To perform the CB open and close control operations, follow the procedure given below: Apply CB Close Binary Input (BI) to get the breaker status. Press CB OPEN control key. The confirmation pop-up appears. ©2018 Siemens Protection Devices Limited Chapter 1 Page 15 of 77...

  • Page 19: Power Supply Unit (Psu)

    In the event of the supply voltage levels are falling below the relay minimum operate level, the PSU will automatically switch off itself and latch out and this prevents any PSU overload conditions occurring. The PSU is reset by switching the auxiliary supply off and on. ©2018 Siemens Protection Devices Limited Chapter 1 Page 16 of 77...

  • Page 20: Connectors

    MLFB ordering code, with hardware version suffix • Nominal current rating • Nominal voltage rating • Rated frequency • Auxiliary supply rating • Binary input supply rating • Serial number ©2018 Siemens Protection Devices Limited Chapter 1 Page 17 of 77...

  • Page 21: Figure 2-3 Relay Rating Label

    For safety reasons the following symbols are displayed on the fascia. Caution: Refer to Equipment Documentation Caution: Risk of Electric Shock Figure 2-5 Safety Symbols ©2018 Siemens Protection Devices Limited Chapter 1 Page 18 of 77...

  • Page 22: Operator Interface

    Alternatively, the configuration/settings files can be loaded into the relay using ‘Reydisp’ software. When the System Config > Setting Dependencies is ENABLED, only the functions that are enabled will appear in the menu structure. ©2018 Siemens Protection Devices Limited Chapter 1 Page 19 of 77...

  • Page 23: Protection Healthy Led

    The waveform recorder samples and displays current input waveforms at 1600 Hz. The primary CT ratio used for the relay instruments can be set in the CT/VT configuration menu. ©2018 Siemens Protection Devices Limited Chapter 1 Page 20 of 77...

  • Page 24: Voltage Inputs

    Contact’ will operate any LED or virtual assigned from the 'Trip Triggered feature in the same menu and will initiate the fault record storage, actuate the ‘Trip Alert’ screen where enabled and CB Fail protection when enabled. ©2018 Siemens Protection Devices Limited Chapter 1 Page 21 of 77...

  • Page 25: Virtual Input/Outputs

    INPUT CONFIG > INPUT MATRIX menu. Virtual input/outputs can also be used as data items in equations. The status of the virtual inputs and outputs is volatile i.e. not stored during power loss. ©2018 Siemens Protection Devices Limited Chapter 1 Page 22 of 77...

  • Page 26: Self Monitoring

    A meter, Miscellaneous Meters>Unexpected Restarts, is provided to show how many Unexpected Restarts have occurred during the previous Unexpected Restart Period. This is resettable from the front fascia. ©2018 Siemens Protection Devices Limited Chapter 1 Page 23 of 77...

  • Page 27: Protection Healthy/Defective

    With the ‘Protection Healthy’ this contact is open. When the auxiliary supply is not applied to the relay or a problem is detected within the relay then this output contact closes to provide external indication. Figure 2-12 Start-up Events ©2018 Siemens Protection Devices Limited Chapter 1 Page 24 of 77...

  • Page 28: Section 3: Protection Functions

    This prevents mal-operation under fuse failure/MCB tripped conditions where noise voltages can be present. ©2018 Siemens Protection Devices Limited Chapter 1 Page 25 of 77...

  • Page 29: Instantaneous Overcurrent Protection (50)

    When ‘delayed’ trips only are allowed in the auto-reclose sequence (79 P/F Prot’n Trip n = Delayed). 50-n Inrush Action: Block Operation of the inrush current detector function. 50-n VTS Action: Inhibit Operation of the VT Supervision function. ©2018 Siemens Protection Devices Limited Chapter 1 Page 26 of 77...

  • Page 30: Time Delayed Overcurrent Protection (51)

    Where directional elements are present the direction of operation can be set using 51-n Dir. Control setting. Directional logic is provided independently for each 51-n element e.g. giving the option of using two elements set to forward and two to reverse. ©2018 Siemens Protection Devices Limited Chapter 1 Page 27 of 77...

  • Page 31: Figure 3-3 Logic Diagram: Time Delayed Overcurrent Element

    IL2 Fwd & & ≥1 IL2 Rev L2 Dir En & ≥1 IL3 Fwd & & ≥1 IL3 Rev L3 Dir En Figure 3-3 Logic Diagram: Time Delayed Overcurrent Element ©2018 Siemens Protection Devices Limited Chapter 1 Page 28 of 77...

  • Page 32: Current Protection: Voltage Controlled Overcurrent (51V)

    51V Setting 51-n Multiplier < x IL1 51-n Setting < Delayed x IL2 51-n Setting Overcurrent (51-n) < x IL3 51-n Setting Figure 3-4 Logic Diagram: Voltage Controlled Overcurrent Protection ©2018 Siemens Protection Devices Limited Chapter 1 Page 29 of 77...

  • Page 33: Current Protection: Derived Earth Fault (67N, 51N, 50N)

    This prevents mal-operation under fuse failure/MCB tripped conditions where noise voltages can be present. 67N Polarizing Quantity 67N Charact. Angle 67N Min. Voltage Sequence Filters 67N Fwd. 67N Rev. Sequence Filters Figure 3-5 Logic Diagram: Derived Directional Earth Fault Element ©2018 Siemens Protection Devices Limited Chapter 1 Page 30 of 77...

  • Page 34: Instantaneous Derived Earth Fault Protection (50N)

    Non-Dir Inhibit Forward & & Reverse VT Fail ≥1 50N-n Dir En & & ≥1 67N Fwd & 67N Rev Figure 3-6 Logic Diagram: Derived Instantaneous Earth Fault Element ©2018 Siemens Protection Devices Limited Chapter 1 Page 31 of 77...

  • Page 35: Time Delayed Derived Earth Fault Protection (51N)

    When ‘delayed’ trips only are allowed in the auto-reclose sequence (79 E/F Prot’n Trip n = Delayed). 51N-n Inrush Action: Block Operation of the inrush current detector function. 51N-n VTSAction: Inhibit Operation of the VT Supervision function. ©2018 Siemens Protection Devices Limited Chapter 1 Page 32 of 77...

  • Page 36: Figure 3-7 Logic Diagram: Derived Time Delayed Earth Fault Protection

    Inhibit Forward & & Reverse VT Fail ≥1 51N-n Dir En ≥1 & & 67N Fwd. & 67N Rev. Figure 3-7 Logic Diagram: Derived Time Delayed Earth Fault Protection ©2018 Siemens Protection Devices Limited Chapter 1 Page 33 of 77...

  • Page 37: Current Protection: Measured Earth Fault (67G, 51G, 50G)

    This prevents mal-operation under fuse failure/MCB tripped conditions where noise voltages can be present. 67G Charact. Angle 67G Min. Voltage Sequence Filters 67G Fwd 67G Rev IL4 (I Figure 3-8 Logic Diagram: Measured Directional Earth Fault Protection ©2018 Siemens Protection Devices Limited Chapter 1 Page 34 of 77...

  • Page 38: Instantaneous Measured Earth Fault Protection (50G)

    Non Dir Non-Dir Inhibit Forward & & Reverse VT Fail ≥1 & 50G-n Dir En ≥1 & 67G Fwd & 67G Rev Figure 3-9 Logic Diagram: Measured Instantaneous Earth-fault Element ©2018 Siemens Protection Devices Limited Chapter 1 Page 35 of 77...

  • Page 39: Time Delayed Measured Earth Fault Protection (51G)

    Forward & & Reverse VT Fail ≥1 51G-n Dir En & ≥1 & 67G Fwd & 67G Rev Figure 3-10 Logic Diagram: Measured Time Delayed Earth Fault Element (51G) ©2018 Siemens Protection Devices Limited Chapter 1 Page 36 of 77...

  • Page 40: Current Protection: Sensitive Earth Fault (67Sef, 51Sef, 50Sef)

    This prevents mal-operation under fuse failure/MCB tripped conditions where noise voltages can be present. 67SEF 67SEF Charact. Angle 67SEF Min. Voltage Sequence Filters 67SEF Fwd 67SEF Rev Figure 3-11 Logic Diagram: SEF Directional Element (67SEF) ©2018 Siemens Protection Devices Limited Chapter 1 Page 37 of 77...

  • Page 41: Instantaneous Sensitive Earth Fault Protection (50Sef)

    51SEF-n Time Mult setting. Alternatively, a definite time lag (DTL) can be chosen using 51SEF-n Char. When DTL is selected the time multiplier is not applied and the 51SEF-n Delay (DTL) setting is used instead. ©2018 Siemens Protection Devices Limited Chapter 1 Page 38 of 77...

  • Page 42: Figure 3-14 Logic Diagram: 7Sr10 Sef Time Delayed Element (51Sef)

    Inhibit Forward & & Reverse VT Fail ≥1 & 51SEF-n Dir En ≥1 & 67SEF Fwd & 67SEF Rev Figure 3-15 Logic Diagram: 7SR10 SEF Time Delayed Element (51SEF) ©2018 Siemens Protection Devices Limited Chapter 1 Page 39 of 77...

  • Page 43: Current Protection: High Impedance Restricted Earth Fault - (64H)

    Cold load trips use the same binary output(s) as the associated 51-n element. Operation of the cold load element can be inhibited from: Inhibit Cold Load A binary or virtual input. ©2018 Siemens Protection Devices Limited Chapter 1 Page 40 of 77...

  • Page 44: Current Protection: Negative Phase Sequence Overcurrent - (46Nps)

    The 46DT element has a DTL characteristic. 46DT Setting sets the pick-up current and 46DT Delay the follower time delay. Operation of the negative phase sequence overcurrent elements can be inhibited from: Inhibit 46IT A binary or virtual input. Inhibit 46DT A binary or virtual input. ©2018 Siemens Protection Devices Limited Chapter 1 Page 41 of 77...

  • Page 45: Current Protection: Under-Current (37)

    < < 37- n Setting General Pickup < 37-n Start Option 37-n Delay Any / All 37-n < < Figure 3-19 Logic Diagram: Phase Current Inputs Undercurrent Detector (37) ©2018 Siemens Protection Devices Limited Chapter 1 Page 42 of 77...

  • Page 46: Current Protection: Thermal Overload (49)

    The final steady state thermal condition can be predicted for any steady state value of input current where t >τ, θ × 100% θ Where: θ = final thermal state before disconnection of device ©2018 Siemens Protection Devices Limited Chapter 1 Page 43 of 77...

  • Page 47: Voltage Protection: Phase Under/Over Voltage (27/59)

    Operation of the under/over voltage elements can be inhibited from: Inhibit 27/59-n A binary or virtual input. 27/59-n VTSInhibit: Yes Operation of the VT Supervision function 27/59-n U/V Guarded Under voltage guard element. ©2018 Siemens Protection Devices Limited Chapter 1 Page 44 of 77...

  • Page 48: Voltage Protection: Negative Phase Sequence Overvoltage (47Nps)

    Under voltage guard element. 47-n Element Enabled Disabled 47-n Setting General Pickup & 47-n Hysteresis Inhibit 47-n 47-n Delay > 47-n Filter Figure 3-24 Logic Diagram: NPS Overvoltage Protection (47) ©2018 Siemens Protection Devices Limited Chapter 1 Page 45 of 77...

  • Page 49: Voltage Protection: Neutral Overvoltage (59N)

    General Pickup Pickup trip 59NIT Filter General Pickup 59NDT Setting 59NDT Element 59NDT Delay Disabled > Enabled 59NDT & Inhibit 59NDT Figure 3-25 Logic Diagram: Neutral Overvoltage Element (59N) ©2018 Siemens Protection Devices Limited Chapter 1 Page 46 of 77...

  • Page 50: Voltage Protection: Under/Over Frequency (81)

    81 U/V Guard 81-n Operation Setting 81-n Setting < & 81-n Hysteresis < General Pickup < 81-n Delay Voltage > < 81-n Selection Figure 3-26 Logic Diagram: Under/Over Frequency Detector (81) ©2018 Siemens Protection Devices Limited Chapter 1 Page 47 of 77...

  • Page 51: Power Protection: Power (32)

    Gn32-n: Setting Gn 32-n U/C Guard Setting & < & & < < Gn 32-n Delay -VAr -VAr 32-n +VAr +VAr General Pickup Figure 3-27 Logic Diagram: Power Protection (32) ©2018 Siemens Protection Devices Limited Chapter 1 Page 48 of 77...

  • Page 52: Power Protection: Sensitive Power (32S)

    Gn 32S-n U/C & Guard Setting & < 32S CT Angle Comp ISEF Gn 32S-n Delay -VAr -VAr 32S-n +VAr +VAr General Pickup Figure 3-28 Logic Diagram: Sensitive Power Protection (32S) ©2018 Siemens Protection Devices Limited Chapter 1 Page 49 of 77...

  • Page 53: Power Protection: Power Factor (55)

    Gn 55-n U/C Guard Setting & < & < & < Gn 55-n Delay -VAr -VAr 55-n +VAr +VAr General Pickup Figure 3-29 Logic Diagram: Power Factor Protection (55) ©2018 Siemens Protection Devices Limited Chapter 1 Page 50 of 77...

  • Page 54: Section 4: Auto-Reclose (79) Optional Function

    The Instruments Menu includes the following meters relevant to the status of the Auto-Reclose and Manual Closing of the circuit breaker: - Status of the AR sequence , AR Shot Count, CB Open Countdown Timer and CB Close Countdown Timer ©2018 Siemens Protection Devices Limited Chapter 1 Page 51 of 77...
  • Page 55 79 Successful AR 79 Lockout 79 Close Onto Fault 79 Trip & Reclose 79 Trip & Lockout 79 Block External Successful Manual Close 79 Last Trip Lockout CB fail to close ©2018 Siemens Protection Devices Limited Chapter 1 Page 52 of 77...

  • Page 56: Auto Reclose Sequences

    The dead time is initiated when the trip output contact reset, the pickup is reset and the CB is open. The CB close output relay is energised after the dead time has elapsed. Figure 4-1 Typical AR Sequence with 3 Inst and 1 Delayed trip ©2018 Siemens Protection Devices Limited Chapter 1 Page 53 of 77...

  • Page 57: Autoreclose Prot'n Menu

    An alarm output is provided to indicate last trip to lockout. Once lockout has occurred, an alarm (79 Lockout) is issued and all further Close commands, except manual close, are inhibited. ©2018 Siemens Protection Devices Limited Chapter 1 Page 54 of 77...

  • Page 58: P/F Shots Sub-Menu

    Not Blocked/Blocked - Blocked raises an output which can be mapped to a Binary output to Block an External Protection’s Trip Output. 79 P/F Deadtime 1 Sets the first Reclose Delay (Deadtime) for the External sequence. ©2018 Siemens Protection Devices Limited Chapter 1 Page 55 of 77...
  • Page 59 External AutoReclose sequence can be applied for this purpose. By setting-up internal Quick Logic equation(s) the user can define and set what should occur when any one of these other elements operates. ©2018 Siemens Protection Devices Limited Chapter 1 Page 56 of 77...

  • Page 60: Figure 4-2 Basic Auto-Reclose Sequence Diagram

    Elem Line Check Trip CB Open at End of Reclaim Time, or Protection operation during final Reclaim Time Reclaim Timer Reclaim Time Elapsed 79 Successful AR Figure 4-2 Basic Auto-Reclose Sequence Diagram ©2018 Siemens Protection Devices Limited Chapter 1 Page 57 of 77...

  • Page 61: Quick Logic

    The output of En is assigned in the OUTPUT CONFIG > OUTPUT MATRIX menu where it can be programmed to any Binary Output (O), LED (L) or Virtual Input/Output (V) combination. Protection functions can be used in Quick Logic by mapping them to a Virtual Input/Output. ©2018 Siemens Protection Devices Limited Chapter 1 Page 58 of 77...

  • Page 62: Manual Cb Control

    A CB trip caused by a CB Open command will not initiate functionality such as circuit-breaker fail, fault data storage, I t measurement and operation counters. ©2018 Siemens Protection Devices Limited Chapter 1 Page 59 of 77...

  • Page 63: Circuit Breaker (Cb)

    The CB Open and CB Closed binary inputs are continually monitored to track the CB Status. A Don’t Believe it (DBI) condition exists for a 1/1 state– i.e. where the CB indicates it is both Open and Closed at the same time ©2018 Siemens Protection Devices Limited Chapter 1 Page 60 of 77...

  • Page 64: Figure 4-4 Logic Diagram: Circuit Breaker Status

    This allows for the internal delays caused by the relay – especially the delay before a binary input operates – to be subtracted from the measured CB trip time. This gives a more accurate measurement of the time it took for the CB to actually trip. ©2018 Siemens Protection Devices Limited Chapter 1 Page 61 of 77...

  • Page 65: Section 5: Supervision Functions

    50 BF Mech Trip ≥1 50BF-2 50BF-2 Delay & CB Closed & 50 BF Setting ≥1 & > ≥1 50BF-I 4 Setting > Figure 5-1 Logic Diagram: Circuit Breaker Fail Protection (50BF) ©2018 Siemens Protection Devices Limited Chapter 1 Page 62 of 77...

  • Page 66: 2Nd Harmonic Block/Inrush Restraint (81Hbl2) Phase Elements Only

    Operation of the Total harmonic distortion supervision elements can be inhibited from: Inhibit 81THD A binary or virtual input. 81THD Inrush Action: Block Operation of the inrush current detector function. ©2018 Siemens Protection Devices Limited Chapter 1 Page 63 of 77...

  • Page 67: Vt Supervision (60Vts)

    Voltage is restored to a healthy state i.e. above VPPS setting while NPS voltage is below VNPS setting. Ext Reset 60VTS A binary or virtual input, or function key and a VT failure condition no longer exists. Inhibit 60VTS A binary or virtual input. ©2018 Siemens Protection Devices Limited Chapter 1 Page 64 of 77...

  • Page 68: Ct Supervision (60Cts)

    An output is also given to indicate the faulted phase, 60CTS-I PhA , 60CTS-I PhB, and 60CTS-I PhC Operation of the CT supervision elements can be inhibited from: Inhibit 60CTS A binary or virtual input. ©2018 Siemens Protection Devices Limited Chapter 1 Page 65 of 77...

  • Page 69: 60Cts

    Setting an output is given after the 46BC Delay. The Broken Conductor function can be inhibited from Inhibit 46BC A binary or virtual input. 46BC U/I Guard A minimum load current ©2018 Siemens Protection Devices Limited Chapter 1 Page 66 of 77...

  • Page 70: Trip/ Close Circuit Supervision (74Tcs & 74Ccs)

    Disabled & CCS-n 74CCS-n ≥1 NOTE: Diagram shows two binary inputs mapped 74CCS-n to the same Close Circuit Supervision element Figure 5-9 Logic Diagram: Close Circuit Supervision Feature (74CCS) ©2018 Siemens Protection Devices Limited Chapter 1 Page 67 of 77...

  • Page 71: Section 6: Other Features

    Figure 6-1 Communication to Front USB Port To establish the connection between the Relay and Reydisp software, follow the procedure given below: 1. Click Connect. Figure 6-2 Connect Icon ©2018 Siemens Protection Devices Limited Chapter 1 Page 68 of 77...

  • Page 72: Figure 6-3 Port Selection In Connection Manager

    2. Select COM port where the 7SR10 relay is connected. Figure 6-3 Port Selection in Connection Manager 3. Select System Information icon. Figure 6-4 System Information Icon 4. Confirm the connection establishment with the Reydisp. ©2018 Siemens Protection Devices Limited Chapter 1 Page 69 of 77...

  • Page 73: Figure 6-5 System Information Icon

    75 110 150 300 600 1200 to the same RS485 bus COM1-RS485 Baud 19200 As Required 2400 4800 9600 19200 must be the same as Rate 38400 the one set on the master device. ©2018 Siemens Protection Devices Limited Chapter 1 Page 70 of 77...

  • Page 74: Cb Maintenance

    Manual Open Operations. If disabled, the CB Delta Trip Counter will only increment for protection trip commands. CB Count to AR Block: (Only in Auto-reclose Displays the number of CB trips experienced by the CB ©2018 Siemens Protection Devices Limited Chapter 1 Page 71 of 77...

  • Page 75: I 2 T Cb Wear

    Stored events can be erased using the DATA STORAGE > Clear Events setting or from Reydisp. The following events are logged: ©2018 Siemens Protection Devices Limited Chapter 1 Page 72 of 77...

  • Page 76: Waveform Records

    The Direction of Energy transfer is set by: SYSTEM CONFIG> Export Power/Lag VAr. With both Export Power (W) and Lag VAr (VAr) set to be +ve, the Direction of Energy transfer will follow the IEC convention, as shown in the figure. ©2018 Siemens Protection Devices Limited Chapter 1 Page 73 of 77...

  • Page 77: Disk Activity Warning

    The 'A' symbol at the top-right position of the LCD indicates that new Events, Waveform Records or Fault Records are currently being held in volatile RAM and the archiving, to non-volatile flash disk storage, is being temporarily blocked. ©2018 Siemens Protection Devices Limited Chapter 1 Page 74 of 77...

  • Page 78: Metering

    Note also that switching a protection function IN/OUT via the Control Menu will not change that function’s ENABLED/DISABLED setting. The Control Menu selection will over-ride the setting, however. Control Mode commands are password protected using the Control Password function, see Section 6.9. ©2018 Siemens Protection Devices Limited Chapter 1 Page 75 of 77...

  • Page 79: Real Time Clock

    Once the password has been validated, the user is ‘logged on’ and any further changes can be made without re-entering the password. If no more changes are made within 1 hour then the user will automatically be ‘logged off’, re-enabling the password feature. ©2018 Siemens Protection Devices Limited Chapter 1 Page 76 of 77...
  • Page 80 Control Menu from the front fascia. The password validation screen also displays a numerical code. If the password is lost or forgotten, this code should be communicated to Siemens Limited and the password can be retrieved. NOTE: The default control password is "AAAA". It is recommended to change the default password after the final configuration.
  • Page 81 Tenth Issue 2017/07 Nineth Issue 2017/04 Eighth Issue 2017/03 Seventh Issue 2016/11 Sixth Issue 2015/09 Fifth Issue 2015/06 Fourth Issue 2015/03 Third Issue 2015/02 Second Issue 2013/11 First Issue © 2018 Siemens Protection Devices Limited Chapter 2 Page 1 of 18...
  • Page 82 Configuring Relay Serial Data Communication ..............16 2.1.4 Connecting to the Relay for setting via Reydisp ..............17 2.1.5 Configuring the user texts using Reydisp Language Editor........... 18 © 2018 Siemens Protection Devices Limited Chapter 2 Page 2 of 18...
  • Page 83 Figure 2-1 USB connection to PC ........................15 Figure 2-2 RS485 connection to PC ......................... 15 Figure 2-3 PC Comm Port Selection ......................... 17 Figure 2-4 PC Language File Editor ........................18 © 2018 Siemens Protection Devices Limited Chapter 2 Page 3 of 18...

  • Page 84: Section 1: Introduction

    The user can programme the relay to use alternative text descriptions by installing user language files through the Reydisp Evolution software language configuration tool – see 2.1.5 Figure 1-2 Fascia of a 7SR10 Relay (Size 4 Case) © 2018 Siemens Protection Devices Limited Chapter 2 Page 4 of 18...

  • Page 85: Operation Guide

    LEDs will momentarily light up to indicate their correct operation. It also moves the cursor right ► when navigating through menus and settings. © 2018 Siemens Protection Devices Limited Chapter 2 Page 5 of 18...
  • Page 86 OUTPU T MATRIX TEST CB COUNTERS DEMAND DATA STOR AGE T CB WEAR WAVEFOR M STORAGE STAR T COUNT FAU LT STOR AGE COMMUNICATIONS ENERGY STOR AGE Figure 1-4 Menu Structure © 2018 Siemens Protection Devices Limited Chapter 2 Page 6 of 18...

  • Page 87: Setting Mode

    Displays the 3 Phase currents Nominal RMS values & phase angles with 0.00xIn --- respect to PPS voltage. 0.00xIn --- 0.00xIn --- Pri Earth Current Displays the 3 Earth currents Primary RMS values 0.00A 0.00A © 2018 Siemens Protection Devices Limited Chapter 2 Page 7 of 18...
  • Page 88 Displays the calculated Earth voltage both primary and secondary which 0.00V also shows the secondary angle 0.00V ----o Last Trip Voltage Displays the Phase to Neutral Voltage Nominal RMS values from Last 0.00V Trip 0.00V 0.00V © 2018 Siemens Protection Devices Limited Chapter 2 Page 8 of 18...
  • Page 89 No Dir, SEF Fwd, SEF Rev THERMAL METERS This is the sub-group that includes all the meters that are associated with Thermal TEST/RESET ► allows access to this sub-group →to view © 2018 Siemens Protection Devices Limited Chapter 2 Page 9 of 18...
  • Page 90 Binary inputs TEST/RESET ► allows access to this sub-group →to view General Alarms Displays the state of General Alarm ALARM 1 Cleared General Alarms ALARM 2 Cleared © 2018 Siemens Protection Devices Limited Chapter 2 Page 10 of 18...
  • Page 91 Mean 0.00W Power Q 3P Demand Displays the Reactive Power demand. 0.00VAr 0.00VAr Mean 0.00VAr Power S 3P Demand Displays the Apparent Power demand. 0.00VA 0.00VA Mean 0.00VA © 2018 Siemens Protection Devices Limited Chapter 2 Page 11 of 18...
  • Page 92 This meter displays the date and time and the number of Fault records Time 22:41:44 and Event records stored in the relay Waveform Recs Fault Recs Event Recs Data Log Recs Setting Group © 2018 Siemens Protection Devices Limited Chapter 2 Page 12 of 18...
  • Page 93 This is the sub-group that includes all the meters that are associated with QuickLogic Equations TEST/RESET ► allows access to this sub-group →to view E 1-4 ---- E1 Equation E2 Equation E3 Equation E4 Equation © 2018 Siemens Protection Devices Limited Chapter 2 Page 13 of 18...

  • Page 94: Fault Data Mode

    TEST/RESET► button. Each record contains data on the operated elements, analogue values and LED flag states at the time of the fault. The data is viewed by scrolling down using the ▼ button. © 2018 Siemens Protection Devices Limited Chapter 2 Page 14 of 18...

  • Page 95: Section 2: Setting & Configuring The Relay Using Reydisp Evolution

    RS485 Screened RS232 straight Laptop computer twisted pair Rear terminals through cable or USB to RS232 25 pin male D Converter cable connector RS485 connection to PC Figure 2-2 © 2018 Siemens Protection Devices Limited Chapter 2 Page 15 of 18...

  • Page 96: Configuring Relay Serial Data Communication

    This setting is only visible when DNP3 The address of the master to which unsolicited Unsolicited Events is events will be sent. Enabled DNP3 Application Timeout 5, 6 ... 299, 300 © 2018 Siemens Protection Devices Limited Chapter 2 Page 16 of 18...

  • Page 97: Connecting To The Relay For Setting Via Reydisp

    Select ‘Connect’ to initiate the relay-PC connection. PC Comm Port Selection Figure 2-3 The relay settings can now be configured using the Reydisp software. Please refer to the Reydisp Evolution Manual for further guidance. © 2018 Siemens Protection Devices Limited Chapter 2 Page 17 of 18...

  • Page 98: Configuring The User Texts Using Reydisp Language Editor

    Care should be taken to ensure a unique file name is given including a version control reference. The user will be prompted to restart the relay to activate the language file. Please refer to the Language Editor Manual for further guidance. © 2018 Siemens Protection Devices Limited Chapter 2 Page 18 of 18...
  • Page 99 Tenth Issue 2017/07 Nineth Issue 2017/04 Eighth Issue 2017/03 Seventh Issue 2016/11 Sixth Issue 2015/09 Fifth Issue 2015/06 Fourth Issue 2015/03 Third Issue 2015/02 Second Issue 2013/11 First Issue © 2018 Siemens Protection Devices Limited Chapter 3 Page 1 of 52...
  • Page 100 Operate and Reset Time ....................27 2.12 51 Time Delayed Overcurrent ......................28 2.12.1 Reference .......................... 28 2.12.2 Operate and Reset Level ....................28 2.12.3 Operate and Reset Time ....................28 © 2018 Siemens Protection Devices Limited Chapter 3 Page 2 of 52...
  • Page 101 Operate and Reset Time ....................51 3.6 81HBL2 Inrush Detector ........................51 3.6.1 Reference .......................... 51 3.6.2 Operate and Reset Time ....................51 3.7 81THD Total Harmonic Distortion Supervision .................. 52 © 2018 Siemens Protection Devices Limited Chapter 3 Page 3 of 52...
  • Page 102 Electrical Tests ........................... 10 Table 1-16 Safety Test..........................11 Table 1-17 Auxiliary Supply Variation ......................12 Table 1-18 Environmental Test ........................13 Table 1-19 Product Safety Test ........................13 © 2018 Siemens Protection Devices Limited Chapter 3 Page 4 of 52...

  • Page 103: Section 1: Performance Specification

    (Low Voltage Directive 2014/35/EU) as well as restriction on usage of hazardous substances in electrical and electronic equipment (RoHS Directive 2011/65/EU). This conformity has been proved by tests conducted by Siemens AG in accordance of the Council Directive in accordance with the product standard IEC/EN 60255-26 for the EMC directives, and with the standard IEC/EN 60255-27 for the low-voltage directive.
  • Page 104 ≤0.3 VA per phase and earth for both 1 A and 5 A * ZY20 - Special version with Thermal withstand 500 A (5 A CT) for 1 s. © 2018 Siemens Protection Devices Limited Chapter 3 Page 6 of 52...
  • Page 105 User selectable 0 to 14,400,000 ms (up to 4 h) Drop Off Delay User selectable 0 to 14,400,000 ms (up to 4 h) * Refer to ordering information for more details. © 2018 Siemens Protection Devices Limited Chapter 3 Page 7 of 52...
  • Page 106 MODBUS RTU, IEC 60870-5-103, DNP 3.0 Data Transfer rate: Rate 75 bps to 38400 bps Table 1-12 Front Communication Port Quantity 1 No. Electrical connection USB, Type B © 2018 Siemens Protection Devices Limited Chapter 3 Page 8 of 52...

  • Page 107: Environmental Performance

    Frequency Range : 1 Hz to 35 Hz Sweep rate : 1 octave/min Contact IEC 60255-1 Making capacity, (Ref: Std IEC 61810-1) Make and carry capacity, Breaking capacity © 2018 Siemens Protection Devices Limited Chapter 3 Page 9 of 52...
  • Page 108 30 MHz to 230 MHz, 40 dB µ V/m at 10 m measurement distance 230 MHz to 1 GHz, 47 dB µ V/m at 10 m measurement distance © 2018 Siemens Protection Devices Limited Chapter 3 Page 10 of 52...
  • Page 109 (Third Edition): 2010 Resistance to mechanical stresses as per Cl.No.8 Protection Against Spread of Fire as per Cl.No.9 Equipment Temperature Limits and Resistance to heat as per Cl.No.10 © 2018 Siemens Protection Devices Limited Chapter 3 Page 11 of 52...
  • Page 110 RV = 110 V DC RV = 24 V DC RV = 230 V AC No effect on relay performance Restart with no mal-operation, loss of data or relay damage © 2018 Siemens Protection Devices Limited Chapter 3 Page 12 of 52...
  • Page 111 Insulating Materials, Edition 2: 2013-10 material of Components and Fire flammability class enclosures Terminals Class UL 94 V-0 Terminal Mounting Class UL 94 V-0 Wiring (CT) (N)2GFAF (VDE) © 2018 Siemens Protection Devices Limited Chapter 3 Page 13 of 52...
  • Page 112 Clause No. 13 liberated gases and substances, explosion and implosion Components and sub Clause No. 14 assemblies HAZARDS resulting Clause No. 16 from application Risk Assessment Clause No. 17 © 2018 Siemens Protection Devices Limited Chapter 3 Page 14 of 52...

  • Page 113: Section 2: Protection Functions

    : 58 ms, ± 10 ms Operate time following delay , ± 1 % or ± 10 ms basic Repeatability ± 1 % or ± 10ms Disengaging time < 80 ms © 2018 Siemens Protection Devices Limited Chapter 3 Page 15 of 52...

  • Page 114: Power

    , ± 1 % or ± 10 ms basic Disengaging time < 40 ms 2.2.4 Operate Threshold Attribute Value 2.5 % I Minimum levels for 2.5 % V operation 0.01Sn © 2018 Siemens Protection Devices Limited Chapter 3 Page 16 of 52...

  • Page 115: Sensitive Power

    , ± 1 % or ± 10 ms basic Disengaging time < 40 ms 2.3.4 Operate Threshold Attribute Value 2.5 % I Minimum levels for operation 2.5 % V © 2018 Siemens Protection Devices Limited Chapter 3 Page 17 of 52...

  • Page 116: Undercurrent

    Operate time following delay , ± 1 % or ± 10 ms basic Repeatability ± 1 % or ± 10ms Overshoot time < 40 ms Disengaging time < 60 ms © 2018 Siemens Protection Devices Limited Chapter 3 Page 18 of 52...

  • Page 117: Negative Phase Sequence Overcurrent

    , ± 4 % or ± 1 % I Reset level ≥ 95 % I Repeatability ± 1 % -10 °C to +60 °C ≤ 5 % Variation ± 5 % ≤ 5 % © 2018 Siemens Protection Devices Limited Chapter 3 Page 19 of 52...

  • Page 118: Operate And Reset Time (46It)

    IEC-LTI : R = 80 , ± 1 % or ± 20 ms Repeatability ± 1 % or ± 20 ms Overshoot time < 40 ms Disengaging time < 60 ms © 2018 Siemens Protection Devices Limited Chapter 3 Page 20 of 52...

  • Page 119: Negative Phase Sequence Voltage

    Operate time following delay , ± 2 % or ± 20 ms basic Repeatability ± 1 % or ± 20 ms Overshoot time < 40 ms Disengaging time < 100 ms © 2018 Siemens Protection Devices Limited Chapter 3 Page 21 of 52...

  • Page 120: Thermal Overload

    Overload trip operate time − ×   (Is: 0.3 – 3xI where I = prior current Repeatability ± 100 ms Note:- Fastest operate time is at 10xI © 2018 Siemens Protection Devices Limited Chapter 3 Page 22 of 52...
  • Page 121 7SR10 Performance Specification Figure 2.7-1 Thermal Overload Protection Curves © 2018 Siemens Protection Devices Limited Chapter 3 Page 23 of 52...

  • Page 122: Instantaneous Overcurrent

    < 40 ms Disengaging time < 50 ms The operating timings are measured on the basis of fundamental measurement algorithm, with protection functions and communication ports configured in the relay. © 2018 Siemens Protection Devices Limited Chapter 3 Page 24 of 52...

  • Page 123: Instantaneous Measured Earth Fault

    Disengaging time < 50 ms NOTE: The operating timings are measured on the basis of fundamental measurement algorithm, with protection functions and communication ports configured in the relay. © 2018 Siemens Protection Devices Limited Chapter 3 Page 25 of 52...

  • Page 124: Instantaneous Derived Earth Fault

    < 40 ms Disengaging time < 57 ms The operating timings are measured on the basis of fundamental measurement algorithm, with protection functions and communication ports configured in the relay. © 2018 Siemens Protection Devices Limited Chapter 3 Page 26 of 52...

  • Page 125: 50Sef Instantaneous Sensitive Earth Fault

    ± 5 % ≤ 5 % The operating timings are measured on the basis of fundamental measurement algorithm, with protection functions and communication ports configured in the relay. © 2018 Siemens Protection Devices Limited Chapter 3 Page 27 of 52...

  • Page 126: Time Delayed Overcurrent

    ANSI-VI : A = 19.61, B = 0.491, P = 2.0 ANSI-EI : A = 28.2, B = 0.1217, P = 2.0 char = DTL , ± 1 % or ± 20 ms © 2018 Siemens Protection Devices Limited Chapter 3 Page 28 of 52...
  • Page 127 Figure 2.12-2 and Figure 2.12-3 show the ANSI operate and reset curves. These operate times apply to non- directional characteristics. Where directional control is applied then the directional element operate time should be added to give total maximum operating time. © 2018 Siemens Protection Devices Limited Chapter 3 Page 29 of 52...
  • Page 128 7SR10 Performance Specification 1000 Time (sec) Long Time Inverse Normal Inverse Very Inverse Extremely Inverse 50 60 Current (multiples of setting) Figure 2.12-1 IEC IDMTL Curves (Time Multiplier=1) © 2018 Siemens Protection Devices Limited Chapter 3 Page 30 of 52...
  • Page 129 7SR10 Performance Specification 1000 Time (sec) Moderately Inverse Very Inverse Extremely Inverse 50 60 Current (multiples of setting) Figure 2.12-2 ANSI IDMTL Operate Curves (Time Multiplier=1) © 2018 Siemens Protection Devices Limited Chapter 3 Page 31 of 52...
  • Page 130 7SR10 Performance Specification 1000 Extremely Inverse Very Inverse Time (sec) Moderately Inverse 0.8 0.9 Current (multiples of setting) Figure 2.12-3 ANSI Reset Curves (Time Multiplier=1) © 2018 Siemens Protection Devices Limited Chapter 3 Page 32 of 52...
  • Page 131 7SR10 Performance Specification Figure 2.12-4 IEC Reset Curves (Time Multiplier=1) © 2018 Siemens Protection Devices Limited Chapter 3 Page 33 of 52...

  • Page 132: Time Delayed Measured Earth Fault

    ANSI-VI : A = 19.61, B = 0.491, P = 2.0 ANSI-EI : A = 28.2, B = 0.1217, P = 2.0 char = DTL , ± 1 % or ± 20 ms © 2018 Siemens Protection Devices Limited Chapter 3 Page 34 of 52...
  • Page 133 Figure 2.12-2 and Figure 2.12-3 show the ANSI operate and reset curves. These operate times apply to non- directional characteristics. Where directional control is applied then the directional element operate time should be added to give total maximum operating time. © 2018 Siemens Protection Devices Limited Chapter 3 Page 35 of 52...

  • Page 134: Time Delayed Derived Earth Fault

    ANSI-VI : A = 19.61, B = 0.491, P = 2.0 ANSI-EI : A = 28.2, B = 0.1217, P = 2.0 char = DTL , ± 1 % or ± 20 ms © 2018 Siemens Protection Devices Limited Chapter 3 Page 36 of 52...
  • Page 135 Figure 2.12-2 and Figure 2.12-3 show the ANSI operate and reset curves. These operate times apply to non- directional characteristics. Where directional control is applied then the directional element operate time should be added to give total maximum operating time. © 2018 Siemens Protection Devices Limited Chapter 3 Page 37 of 52...

  • Page 136: 51Sef Time Delayed Sensitive Earth Fault

    = ANSI-MI : A = 0.0515, B = 0.114, P = 0.02 ANSI-VI : A = 19.61, B = 0.491, P = 2.0 ANSI-EI : A = 28.2, B = 0.1217, P = 2.0 © 2018 Siemens Protection Devices Limited Chapter 3 Page 38 of 52...
  • Page 137 Figure 2.12-2 and Figure 2.12-3 show the ANSI operate and reset curves. These operate times apply to non- directional characteristics. Where directional control is applied then the directional element operate time should be added to give total maximum operating time. © 2018 Siemens Protection Devices Limited Chapter 3 Page 39 of 52...

  • Page 138: Voltage Controlled Overcurrent

    As per Phase Fault Shaped Characteristic Element (ANSI 51). Where Pickup Level = I for Voltage > V Pickup Level = (I x m) for Voltage < V © 2018 Siemens Protection Devices Limited Chapter 3 Page 40 of 52...

  • Page 139: Power Factor

    , ± 1 % or ± 10 ms basic Disengaging time < 80 ms 2.17.4 Operate Threshold Attribute Value 2.5 % I Minimum levels for 2.5% V operation 0.01 Sn © 2018 Siemens Protection Devices Limited Chapter 3 Page 41 of 52...

  • Page 140: Neutral Voltage Displacement

    ± 5 % ≤ 5 % Operate and Reset Time (59NIT) Attribute Value Starter operate time 65 ms, ± 20 ms basic Applied Current (for Operate-Time) 10 x V © 2018 Siemens Protection Devices Limited Chapter 3 Page 42 of 52...
  • Page 141 = DTL , ± 1 % or ± 40 ms Repeatability ± 1 % or ± 20 ms Overshoot time < 40 ms Disengaging time < 100 ms © 2018 Siemens Protection Devices Limited Chapter 3 Page 43 of 52...

  • Page 142: Restricted Earth Fault Protection

    Operate time following delay , ± 1 % or ± 10 ms basic Repeatability ± 1 % or ± 10 ms Overshoot time < 40 ms Disengaging time < 50 ms © 2018 Siemens Protection Devices Limited Chapter 3 Page 44 of 52...

  • Page 143: 67/67N/67G/67Sef Directional Overcurrent & Earth Fault

    2.20.4 Operate and Reset Time Attribute Value typically 32, < 40 ms at characteristic angle Operate time + 50/51/50G/51G/50SEF/51SEF/50N/51N element operate time Reset time typically < 65 ms at characteristic angle © 2018 Siemens Protection Devices Limited Chapter 3 Page 45 of 52...

  • Page 144: Under/Over Frequency

    Maximum < 190 ms Operate time following delay , ± 1 % or ± 10 ms basic Repeatability ± 1 % or ± 10 ms Disengaging time < 140 ms © 2018 Siemens Protection Devices Limited Chapter 3 Page 46 of 52...

  • Page 145: Section 3: Supervision Functions

    , ± 1 % or ± 20 ms basic Repeatability ± 1 % or ± 20 ms ± 5 % Variation ≤ 5 % harmonics to f cutoff © 2018 Siemens Protection Devices Limited Chapter 3 Page 47 of 52...

  • Page 146: 50Bf Circuit Breaker Fail

    , ± 1 % or ± 20 ms CBF2 Repeatability ± 1 % or ± 20 ms Overshoot < 2 x 20 ms Disengaging time < 20 ms © 2018 Siemens Protection Devices Limited Chapter 3 Page 48 of 52...

  • Page 147: Operate And Reset Time

    Basic operate time 50 ms ± 20 ms basic Operate time , ± 1 % or ± 20 ms basic Repeatability ± 1 % or ± 20 ms © 2018 Siemens Protection Devices Limited Chapter 3 Page 49 of 52...

  • Page 148: 60Vts Voltage Transformer Supervision

    Basic operate time 0 V to 2 x V 32 ms ± 10 ms basic Operate time ± 1 % or ± 10 ms basic Repeatability ± 1 % or ± 10 ms © 2018 Siemens Protection Devices Limited Chapter 3 Page 50 of 52...

  • Page 149: 74Tcs & 74Ccs Trip & Close Circuit Supervision

    Will operate until drop-off of any protection element due to Reset Time magnetic inrush NOTE: Fundamental current should be minimum 0.1xIn for better inrush accuracy. © 2018 Siemens Protection Devices Limited Chapter 3 Page 51 of 52...

  • Page 150: 81Thd Total Harmonic Distortion Supervision

    Operate time following delay , ± 1 % or ± 10 ms basic Repeatability ± 1 % or ± 10 ms Overshoot time < 40 ms Disengaging time < 60 ms © 2018 Siemens Protection Devices Limited Chapter 3 Page 52 of 52...
  • Page 151 No part of this document shall be reproduced or modified or stored in another form, in any data retrieval system, without the permission of Siemens Protection Devices Limited, nor shall any model or article be reproduced from this document unless Siemens Protection Devices Limited consent.
  • Page 152 7SR10 Technical Manual Chapter 4 - Page 2 of 78 © 2018 Siemens Protection Devices...
  • Page 153 5.3.3 Binary Output Status Points and Control Relay Output Blocks..........54 5.3.4 Counters............................ 60 5.3.5 Analog Inputs..........................61 5.4 Additional Settings........................... 65 6. Not Applicable......................67 7. Not Applicable......................69 8. Serial Modems......................71 8.1 Introduction...............................71 © 2018 Siemens Protection Devices Chapter 4 - Page 3 of 78...
  • Page 154 Appendix 1........................77 List of Figures Fig. 2-1 Communication to Front USB Port........................8 Fig. 2-2 Communication to Multiple Devices using RS485 (Standard Port)............. 10 Fig. A1 Operating Mode Table..........................77 Chapter 4 - Page 4 of 78 © 2018 Siemens Protection Devices...

  • Page 155: Introduction

    Reydisp Evolution or Reydisp Manager Software is available, for computers running Microsoft Windows™, to connect to devices to provide operational information, post-fault analysis, setting interrogation and editing facilities etc. Configuration software can be downloaded from our website http://www.siemens.com/energy. This section specifies connection details and lists the information available through the individual protocols.
  • Page 156 7SR10 Technical Manual Chapter 4 - Page 6 of 78 © 2018 Siemens Protection Devices...

  • Page 157: Physical Connection

    Any port not required can be disabled by setting its protocol to OFF. When connecting to Reydisp Evolution software the protocol for the relevant port should be set to IEC60870-5-103. © 2018 Siemens Protection Devices Chapter 4 - Page 7 of 78...

  • Page 158: Usb Interface (Com2)

    2.3 RS485 Interface (COM1) The 2-wire RS485 communication port is located on the rear of the relay and can be connected using a suitable RS485 120 Ohm screened twisted pair cable. Chapter 4 - Page 8 of 78 © 2018 Siemens Protection Devices...
  • Page 159 EVEN accordance with the master device. Local Refer to Appendix COM1-RS485 Remote 1, page 77, for Local or Remote Mode further explanation Remote © 2018 Siemens Protection Devices Chapter 4 - Page 9 of 78...
  • Page 160 System station available To Control System RS 485 Twisted pair Cable RS485 RS485 RS485 Bus Termination Polarity Fig. 2-2 Communication to Multiple Devices using RS485 (Standard Port) Chapter 4 - Page 10 of 78 © 2018 Siemens Protection Devices...

  • Page 161: Iec 60870-5-103 Definitions

    The Station Address of the port being used must be set to a suitable address within the range 0 - 254 to enable communication. This can be set by the Communications Menu : COM n-xxxxx Station Address setting. © 2018 Siemens Protection Devices Chapter 4 - Page 11 of 78...

  • Page 162: Cause Of Transmission

    Negative command acknowledge Note: Events listing a GI cause of transmission can be raised and cleared; other events are raised only. Chapter 4 - Page 12 of 78 © 2018 Siemens Protection Devices...

  • Page 163: Application Service Data Unit (Asdu) Type

    2 Time tagged message (relative time) (monitor direction) 3.1 Measurands I 4 Time-tagged measurands with relative time 5 Identification message 6 Time synchronisation 7 General Interrogation Initialization 9 Measurands II 20 General command © 2018 Siemens Protection Devices Chapter 4 - Page 13 of 78...

  • Page 164: Point List

    1 SE, GI 185 Quick Logic E4 1 SE, GI 214 Function Key 1 1 SE 215 Function Key 2 1 SE 5 Binary Input 5 1 SE, GI Chapter 4 - Page 14 of 78 © 2018 Siemens Protection Devices...
  • Page 165 2 Reset FCB 5 SE 3 Reset CU 5 SE 4 Start/Restart 5 SE 5 Power On 1 SE, GI 1 SE, GI 16 Auto-reclose active 20 Ack, Nak © 2018 Siemens Protection Devices Chapter 4 - Page 15 of 78...
  • Page 166 2 SE, GI 18 51N-2 2 SE, GI 19 50N-2 2 SE, GI 20 51G-2 2 SE, GI 21 50G-2 2 SE, GI 22 51-3 2 SE, GI Chapter 4 - Page 16 of 78 © 2018 Siemens Protection Devices...
  • Page 167 2 SE, GI 82 27/59-2 2 SE, GI 83 27/59-3 2 SE, GI 84 27/59-4 2 SE, GI 85 59NIT 2 SE, GI 86 59NDT 2 SE, GI © 2018 Siemens Protection Devices Chapter 4 - Page 17 of 78...
  • Page 168 2 SE, GI 166 Close Circuit Fail 3 2 SE, GI 167 Close Circuit Fail 2 SE, GI 171 60 CTS-I 2 SE, GI 172 Act Energy Exp 4 SE Chapter 4 - Page 18 of 78 © 2018 Siemens Protection Devices...
  • Page 169 1 SE, GI 45 32-2 1 SE, GI 46 32S-1 1 SE, GI 47 32S-2 1 SE, GI 48 55-1 1 SE, GI 49 55-2 1 SE, GI © 2018 Siemens Protection Devices Chapter 4 - Page 19 of 78...
  • Page 170 20 Ack, Nak 1 SE, GI 201 CB 1 Trip & Lockout 20 Ack, Nak 255 Blocked By Interlocking 1 SE, GI 0 General Interrogation (GI) Initiation 7 Init. GI Chapter 4 - Page 20 of 78 © 2018 Siemens Protection Devices...

  • Page 171: Measurands

    3.4.3 Disturbance Recorder Actual Channel (ACC) Numbers The following Disturbance Recorder channel numbers apply to this device. Description 1 V1 2 V2 3 V3 5 Ia 6 Ib 7 Ic © 2018 Siemens Protection Devices Chapter 4 - Page 21 of 78...
  • Page 172 8 Ig1 Note: Some of the events which are listed above (applicable for the variant) and not available in the device can be enabled through Communication Editor software. Chapter 4 - Page 22 of 78 © 2018 Siemens Protection Devices...

  • Page 173: Modbus Definitions

    The Station Address of the port being used must be set to a suitable address within the range 1 - 247 to enable communication. This can be set by the Communications Menu : COM n-xxxxx Station Address setting. Definitions with shaded area are not available on all relay models. © 2018 Siemens Protection Devices Chapter 4 - Page 23 of 78...

  • Page 174: Modbus Register Data Types

    1,000,000 as a float (from above) we have 49742400h. Assume this is stored in the registers 30001 and 30002, it would look as follows. Address Value 30001 4974 Chapter 4 - Page 24 of 78 © 2018 Siemens Protection Devices...

  • Page 175: Fp_32Bits_3Dp

    5678 we have 162Eh. Assume this is stored in the register 30001, it would look as follows: Address Value 30001 162E On reception this register should be interpreted as a 16 bit integer. © 2018 Siemens Protection Devices Chapter 4 - Page 25 of 78...

  • Page 176: Event

    Measurand format R32.23, sent least significant byte first. The following tables show the fields in the different event records as they are returned. Byte Content FUN INF ms L Event Type 1 Format. Chapter 4 - Page 26 of 78 © 2018 Siemens Protection Devices...

  • Page 177: Eventcount

    Most Significant Bit (MSB). Bit values can only be zero or one. Any unused bits will be set to zero. BITSTRING & MODBUS © 2018 Siemens Protection Devices Chapter 4 - Page 27 of 78...
  • Page 178 0905h. Assume this is stored in the register 30001, it would look as follows: Address Value 30001 0905 On reception this register should be interpreted as a 16 bit integer. Chapter 4 - Page 28 of 78 © 2018 Siemens Protection Devices...

  • Page 179: Point List

    00210 User DP Command 3 00211 User DP Command 4 00212 User DP Command 5 00213 User DP Command 6 00214 User DP Command 7 00215 User DP Command 8 © 2018 Siemens Protection Devices Chapter 4 - Page 29 of 78...

  • Page 180: Inputs (Read Only Binary Values)

    10128 51-2 10129 50-2 10130 51N-2 10131 50N-2 10132 51G-2 10133 50G-2 10134 51-3 10135 50-3 10136 51N-3 10137 50N-3 10138 51G-3 10139 50G-3 10140 51-4 10141 50-4 Chapter 4 - Page 30 of 78 © 2018 Siemens Protection Devices...
  • Page 181 10184 P/F Inst Protection Inhibited 10185 E/F Inst Protection Inhibited 10186 SEF Inst Protection Inhibited 10187 Ext Inst Protection Inhibited 10202 51SEF-1 10203 50SEF-1 10204 51SEF-2 10205 50SEF-2 10206 51SEF-3 © 2018 Siemens Protection Devices Chapter 4 - Page 31 of 78...
  • Page 182 10369 37-PhA 10370 37-PhB 10371 37-PhC 10378 50BF-PhA 10379 50BF-PhB 10380 50BF-PhC 10381 50BF-EF 10383 60 CTS-I-PhA 10384 60 CTS-I-PhB 10385 60 CTS-I-PhC 10390 Trip PhA 10391 Trip PhB Chapter 4 - Page 32 of 78 © 2018 Siemens Protection Devices...
  • Page 183 10904 User SP Command 5 10905 User SP Command 6 10906 User SP Command 7 10907 User SP Command 8 10908 User DP Command 1 10909 User DP Command 2 © 2018 Siemens Protection Devices Chapter 4 - Page 33 of 78...

  • Page 184: Input Registers (Read Only Registers)

    1.000000 Vpps Degrees 30058 Vnps FP_32BITS_3DP 1.000000 Vnps Degrees 30060 Frequency FP_32BITS_3DP 1.000000 Frequency Hz 30064 Ia Primary FP_32BITS_3DP 1.000000 Ia A 30066 Ib Primary FP_32BITS_3DP 1.000000 Ib A Chapter 4 - Page 34 of 78 © 2018 Siemens Protection Devices...
  • Page 185 UINT16 1.000000 Thermal Status Ph C % 30167 Fault Records UINT16 1.000000 Fault Records 30168 Event Records UINT16 1.000000 Event Records 30169 Waveform Records UINT16 1.000000 Waveform Records © 2018 Siemens Protection Devices Chapter 4 - Page 35 of 78...
  • Page 186 FP_32BITS_3DP 1.000000 CB Wear A Remaining 30362 CB Wear B Remaining FP_32BITS_3DP 1.000000 CB Wear B Remaining 30364 CB Wear C Remaining FP_32BITS_3DP 1.000000 CB Wear C Remaining Chapter 4 - Page 36 of 78 © 2018 Siemens Protection Devices...

  • Page 187: Holding Registers (Read Write Registers)

    1.000000 81THD Ib % 30582 Ic THD FP_32BITS_3DP 1.000000 81THD Ic % 4.3.4 Holding Registers (Read Write Registers) Address Description Format Mult Description 40001 Time TIME_METER 0.000000 Time © 2018 Siemens Protection Devices Chapter 4 - Page 37 of 78...
  • Page 188 7SR10 Technical Manual Chapter 4 - Page 38 of 78 © 2018 Siemens Protection Devices...

  • Page 189: Dnp3 Definitions

    (Also see the DNP 3.0 Implementation Table in Section 5.2, beginning on page 42). Vendor Name: Siemens Protection Devices Device Name: 7SR10, using the Triangle MicroWorks, Inc. DNP3 Slave Source Code Library, Version 3. Device Function: Highest DNP Level Supported:...
  • Page 190 Configurable (attach explanation) Configurable 16 Bits Default Object 32 Bits Default Variation: _____ Other Value: _____ Point-by-point list attached Point-by-point list attached Sends Multi-Fragment Responses: Configurable Sequential File Transfer Support: Chapter 4 - Page 40 of 78 © 2018 Siemens Protection Devices...
  • Page 191 Append File Mode Custom Status Code Strings Permissions Field File Events Assigned to Class File Events Send Immediately Multiple Blocks in a Fragment Max Number of Files Open © 2018 Siemens Protection Devices Chapter 4 - Page 41 of 78...

  • Page 192: Implementation Table

    (unsol. resp) 00, 01 (start-stop) Binary Output 1 (read) 06 (no range, or all) - Any Variation 22 (assign class) 07, 08 (limited qty) 17, 27, 28 (index) Chapter 4 - Page 42 of 78 © 2018 Siemens Protection Devices...
  • Page 193 06 (no range, or all) 1 (read) 17, 28 (index see note 1) (without Flag) 07, 08 (limited qty) (response) - see note 2) 17, 27, 28 (index) © 2018 Siemens Protection Devices Chapter 4 - Page 43 of 78...
  • Page 194 Event (with Time) 07, 08 (limited qty) (unsol. resp) 16-Bit Counter Change 06 (no range, or all) 1 (read) (response) 17, 28 (index) Event (with Time) 07, 08 (limited qty) Chapter 4 - Page 44 of 78 © 2018 Siemens Protection Devices...
  • Page 195 32-Bit Frozen Analog Input (with Time of freeze) 16-Bit Frozen Analog Input (with Time of freeze) 32-Bit Frozen Analog Input (without Flag) 16-Bit Frozen Analog Input (without Flag) © 2018 Siemens Protection Devices Chapter 4 - Page 45 of 78...
  • Page 196 00, 01 (start-stop) Short Floating Point 1 (read) 06 (no range, or all) 17, 28 (index Analog Input Deadband (response) 07, 08 (limited qty) - see note 2) Chapter 4 - Page 46 of 78 © 2018 Siemens Protection Devices...
  • Page 197 00 or 01. (For change-event objects, qualifiers 17 or 28 are always responded.) Note 3: Writes of Internal Indications are only supported for index 7 (Restart IIN1-7). © 2018 Siemens Protection Devices Chapter 4 - Page 47 of 78...

  • Page 198: Point List

    41 Trip Circuit Fail 42 Start/Pick-up L1 43 Start/Pick-up L2 44 Start/Pick-up L3 45 General Start/Pick-up 46 VT Fuse Failure 47 Earth Fault Forward/Line 48 Earth Fault Reverse/Busbar 49 Start/Pick-up N Chapter 4 - Page 48 of 78 © 2018 Siemens Protection Devices...
  • Page 199 79 81-4 80 Auto-reclose active 81 CB on by auto reclose 82 Reclaim 83 Lockout 86 51-3 87 50-3 88 51N-3 89 50N-3 90 51G-3 91 50G-3 92 51-4 © 2018 Siemens Protection Devices Chapter 4 - Page 49 of 78...
  • Page 200 210 Close Circuit Fail 211 50BF Stage 1 212 50BF Stage 2 213 49-Alarm 214 49-Trip 215 64H 217 37-1 218 37-2 219 CB Alarm 223 SEF Forward/Line 224 SEF Reverse/Busbar Chapter 4 - Page 50 of 78 © 2018 Siemens Protection Devices...
  • Page 201 303 27/59 PhB 304 27/59 PhC 330 32-1 331 32-2 332 32S-1 333 32S-2 334 55-1 335 55-2 373 37SEF-1 374 37SEF-2 411 Setting G1 selected 412 Setting G2 selected © 2018 Siemens Protection Devices Chapter 4 - Page 51 of 78...
  • Page 202 802 Binary Output 2 803 Binary Output 3 804 Binary Output 4 805 Binary Output 5 806 Binary Output 6 871 Cold Start 872 Warm Start 873 Re-Start 874 Power On Chapter 4 - Page 52 of 78 © 2018 Siemens Protection Devices...
  • Page 203 (1, 2, 3 or none) 0 CB 1 10 User DP Command 1 11 User DP Command 2 12 User DP Command 3 13 User DP Command 4 © 2018 Siemens Protection Devices Chapter 4 - Page 53 of 78...
  • Page 204 Operations Operations Object 10 Object 11 Class (1, 2, 3 Object 13 (1, 2, 3 or none) or none) Pulse On 1 RL 1 Pulse On Latch On Chapter 4 - Page 54 of 78 © 2018 Siemens Protection Devices...
  • Page 205 Latch On 37 Settings Group 4 Latch On Paired Close Pulse On Pulse On Pulse Off Pulse Off 42 Auto-reclose on/off Latch On Latch On Latch Off Latch Off © 2018 Siemens Protection Devices Chapter 4 - Page 55 of 78...
  • Page 206 Reset CB Delta Trip Latch On Pulse On Count, write only location. Paired Close Pulse On Reset CB Count To AR Latch On Pulse On Block, write only location. Paired Close Chapter 4 - Page 56 of 78 © 2018 Siemens Protection Devices...
  • Page 207 89 Service mode Pulse On Paired Close Pulse On Latch On 90 Local mode Pulse On Paired Close Pulse On 91 Local & Remote Pulse On Latch On © 2018 Siemens Protection Devices Chapter 4 - Page 57 of 78...
  • Page 208 Latch Off Pulse On 107 User DP Command 1. Paired Pulse Off Close Paired Trip Pulse On Pulse On 108 User DP Command 2. Pulse Off Pulse Off Chapter 4 - Page 58 of 78 © 2018 Siemens Protection Devices...
  • Page 209 Latch Off Pulse On 113 User DP Command 7. Paired Pulse Off Close Paired Trip Pulse On Pulse On 114 User DP Command 8. Pulse Off Pulse Off © 2018 Siemens Protection Devices Chapter 4 - Page 59 of 78...

  • Page 210: Counters

    The default counter event buffer size is set 30. The counter event mode is set to Most Recent, only most recent event for each point is stored. Counters are by default returned in a class zero interrogation. Note, not all points listed here apply to all builds of devices. Chapter 4 - Page 60 of 78 © 2018 Siemens Protection Devices...

  • Page 211: Analog Inputs

    Analog change event will be generated, and once generated in which class poll (1, 2, 3, or none) will the change event be reported. © 2018 Siemens Protection Devices Chapter 4 - Page 61 of 78...
  • Page 212 39 Ic Nominal 100.000 0.100 43 In Primary 1.000 100.000 44 In Secondary 100.000 0.100 45 In Nominal 100.000 0.100 46 Ig Primary 1.000 100.000 47 Ig Secondary 1000.000 0.100 Chapter 4 - Page 62 of 78 © 2018 Siemens Protection Devices...
  • Page 213 95 Active Setting Group 1.000 1.000 99 Vab Secondary 10.000 1.000 100 Vbc Secondary 10.000 1.000 101 Vca Secondary 10.000 1.000 102 Vn Primary 0.010 100.000 103 Vn Secondary 10.000 1.000 © 2018 Siemens Protection Devices Chapter 4 - Page 63 of 78...
  • Page 214 1000000.000 187 CB Wear A Remaining 1.000 1.000 188 CB Wear B Remaining 1.000 1.000 189 CB Wear C Remaining 1.000 1.000 190 CB Wear Minimum 1.000 1.000 Chapter 4 - Page 64 of 78 © 2018 Siemens Protection Devices...

  • Page 215: Additional Settings

    Address Unsolicited Events set to Enabled. Setting is only visible DNP3 when any port Application 5, 6 ... 299, 300 As Required Protocol is set to Timeout DNP3. © 2018 Siemens Protection Devices Chapter 4 - Page 65 of 78...
  • Page 216 7SR10 Technical Manual Chapter 4 - Page 66 of 78 © 2018 Siemens Protection Devices...

  • Page 217: Not Applicable

    Chapter 4 - 7SR10 · Data Communications Definitions 6. Not Applicable This section intentionally left blank. © 2018 Siemens Protection Devices Chapter 4 - Page 67 of 78...
  • Page 218 7SR10 Technical Manual Chapter 4 - Page 68 of 78 © 2018 Siemens Protection Devices...
  • Page 219 Chapter 4 - 7SR10 · Data Communications Definitions 7. Not Applicable This section intentionally left blank. © 2018 Siemens Protection Devices Chapter 4 - Page 69 of 78...
  • Page 220 7SR10 Technical Manual Chapter 4 - Page 70 of 78 © 2018 Siemens Protection Devices...

  • Page 221: Serial Modems

    Chapter 4 - 7SR10 · Data Communications Definitions 8. Serial Modems 8.1 Introduction 8.2 Connecting a Modem to the Relay(s) 8.3 Setting the Remote Modem 8.4 Connecting to the Remote Modem © 2018 Siemens Protection Devices Chapter 4 - Page 71 of 78...
  • Page 222 7SR10 Technical Manual Chapter 4 - Page 72 of 78 © 2018 Siemens Protection Devices...

  • Page 223: Configuration

    Reydisp software Communications Editor tool. The Communications Editor is provided to allow its users to configure the Communication Protocol's Files in Reyrolle brand Relays manufactured by Siemens Protection Devices Limited (SPDL). The editor supports configuring DNP3, IEC60870-5-103, IEC60870-5-101 and MODBUS protocols.
  • Page 224 Instruments menu. The user must ensure when naming the file, they use a unique file name including the version number. Please refer to the Communications Editor User Guide for further guidance. Chapter 4 - Page 74 of 78 © 2018 Siemens Protection Devices...

  • Page 225: Glossary

    When connecting relays in an optical ring architecture, the data must be passed from one relay to the next, therefore when connecting in this method all relays must have the Data Echo ON. EN100 Siemens' Ethernet communications module supporting IEC61850, available in optical and electrical versions. Ethernet A computer networking technology.
  • Page 226 Bit (logical 1) sent to signify the end. Universal Serial Bus standard for the transfer of data. Wide Area Network. A computer network covering a large geographic area. Chapter 4 - Page 76 of 78 © 2018 Siemens Protection Devices...
  • Page 227 Com1-Mode = Remote Com2 (USB) when Com2-Mode = Local when Com2-Mode = Remote Fascia Historical Information Waveform Records Event Records Fault Information Setting Information Fig. A1 Operating Mode Table © 2018 Siemens Protection Devices Chapter 4 - Page 77 of 78...
  • Page 228 7SR10 Technical Manual Siemens Protection Devices Ltd. (SPDL) P.O. Box 8 Hebburn Tyne and Wear NE31 1TZ United Kingdom For enquiries please contact our Customer Support Centre Tel.: +49 180/524 7000 (24hrs) Fax.: +49 180/524 2471 E-Mail:[email protected] www.siemens.com/reyrolle Template Revision 17.
  • Page 229 Tenth Issue 2017/07 Nineth Issue 2017/04 Eighth Issue 2017/03 Seventh Issue 2016/11 Sixth Issue 2015/09 Fifth Issue 2015/06 Fourth Issue 2015/03 Third Issue 2015/02 Second Issue 2013/11 First Issue © 2018 Siemens Protection Devices Limited Chapter 5 Page 1 of 13...
  • Page 230 7SR10 Relay with Fascia Cover ....................6 Figure 1-5 7SR10 Relay with Sealing Knob ....................6 List of Tables Table 1-1 Recommended Terminal Lugs Specifications with Control Push Buttons ........4 © 2018 Siemens Protection Devices Limited Chapter 5 Page 2 of 13...

  • Page 231: Section 1: Installation Guide

    The earthing point (E) of auxiliary supply is connected to the ground (GND) point of the relay. The earth connection of relay casing should be solidly connected to the panel earth. 25 mm clearance for terminal wiring Figure 1-1 Clearance for Terminal Wiring © 2018 Siemens Protection Devices Limited Chapter 5 Page 3 of 13...
  • Page 232 Tin plated crimp ring Terminal, M3 stud RS Stock No. 613-9334 or Ground Terminal size, 4 mm² to 6 mm², 12 AWG to equivalent Mfr. Part no. 10 AWG, Yellow RVY5-3.2 © 2018 Siemens Protection Devices Limited Chapter 5 Page 4 of 13...

  • Page 233: Fascia Cover Mounting Instructions

    Follow the procedure to fit the 7SR10 overcurrent relay with removable fascia cover: Fix the 7SR10 overcurrent and protection relay on the panel along with mounting brackets. Mounting Bracket Figure 1-3 7SR10 Relay with Mounting Brackets © 2018 Siemens Protection Devices Limited Chapter 5 Page 5 of 13...
  • Page 234 Assemble the removable fascia cover on the relay by using the sealing knob. Panel Fascia Cover Figure 1-4 7SR10 Relay with Fascia Cover Lock the sealing knob by rotating clockwise direction to lock. Figure 1-5 7SR10 Relay with Sealing Knob © 2018 Siemens Protection Devices Limited Chapter 5 Page 6 of 13...

  • Page 235: Current Transformer Configurations

    Current Transformer Configurations Relay Current Description Connection Configuration Setting 50G/51G - Measured E/F ISEF 50SEF/51SEF - Measured ISEF Sensitive E/F ISEF IREF 64H – High Impedance Restricted E/F © 2018 Siemens Protection Devices Limited Chapter 5 Page 7 of 13...
  • Page 236 Ia, Ib, Ic 50/51 - Phase Overcurrent 50N/51N - Derived E/F CT/VT CONFIG: Selects 1 or 5A Phase Current CT ratio for Input primary meters Phase CT Ratio © 2018 Siemens Protection Devices Limited Chapter 5 Page 8 of 13...
  • Page 237 Derived E/F 50G/51G - Measured E/F CT/VT CONFIG: Selects 1 or 5A Phase Current CT ratio for Input primary meters Phase CT Ratio Earth Current Input Earth CT Ratio © 2018 Siemens Protection Devices Limited Chapter 5 Page 9 of 13...
  • Page 238 Phase Overcurrent Derived E/F Transformer Neutral Measured Standby E/F Standby EF CT/VT CONFIG: Selects 1 or 5A Phase Current CT ratio for Input primary meters Phase CT Ratio © 2018 Siemens Protection Devices Limited Chapter 5 Page 10 of 13...
  • Page 239 Phase CT Ratio CT/VT CONFIG: Selects 1 or 5A for Sensitive Power Earth Current input Input CT/VT CONFIG: CT ratio for primary meters for Earth CT Ratio Sensitive Power input © 2018 Siemens Protection Devices Limited Chapter 5 Page 11 of 13...
  • Page 240 7SR10 Installation Guide ISEF © 2018 Siemens Protection Devices Limited Chapter 5 Page 12 of 13...

  • Page 241: Voltage Transformer Configurations

    Phase – Phase Calculated No ZPS available Vab, Vbc, 3Vo 67 & 67N & 67G 47, 59N, 27/59 & 81 Phase – Neutral Calculated Phase – Phase Phase Vca Calculated © 2018 Siemens Protection Devices Limited Chapter 5 Page 13 of 13...
  • Page 242 Tenth Issue 2017/07 Nineth Issue 2017/04 Eighth Issue 2017/03 Seventh Issue 2016/11 Sixth Issue 2015/09 Fifth Issue 2015/06 Fourth Issue 2015/03 Third Issue 2015/02 Second Issue 2013/11 First Issue © 2018 Siemens Protection Devices Limited Chapter 6 Page 1 of 3...
  • Page 243 7SR10 Commissioning and Maintenance Guide Contents Section 1: Commissioning and Maintenance Guide ..................... 3 1.1 Troubleshooting ..........................3 © 2018 Siemens Protection Devices Limited Chapter 6 Page 2 of 3...
  • Page 244 If correct password has been forgotten, note down the numeric code displayed at the Change Password screen e.g. Change password = 1234567 To retrieve the password, communicate this numeric code to a Siemens Limited representative. Protection Healthy General failure. Contact a Siemens Limited representative.
  • Page 245 Tenth Issue 2017/07 Nineth Issue 2017/04 Eighth Issue 2017/03 Seventh Issue 2016/11 Sixth Issue 2015/09 Fifth Issue 2015/06 Fourth Issue 2015/03 Third Issue 2015/02 Second Issue 2013/11 First Issue © 2018 Siemens Protection Devices Limited Chapter 7 Page 1 of 41...
  • Page 246 Close Circuit Supervision Connections ................39 5.5 Inrush Detector (81HBL2) ........................ 40 5.6 Broken Conductor / Load Imbalance (46BC) ..................40 5.6.1 Broken Conductor example ....................41 5.7 Circuit-Breaker Maintenance ......................41 © 2018 Siemens Protection Devices Limited Chapter 7 Page 2 of 41...
  • Page 247 Table 5-2 Determination of VT Failure (1 or 2 Phases) ................36 Table 5-3 Determination of VT Failure (3 Phases) ..................36 Table 5-4 Magnetic Inrush Bias ........................40 © 2018 Siemens Protection Devices Limited Chapter 7 Page 3 of 41...

  • Page 248: Multiple Settings Groups

    Relays on essential circuits switched to settings group 2 to reflect new load and fault currents RADIAL SUBSTATION Non-essential loads Figure 1-1 Example Use of Alternative Settings Groups © 2018 Siemens Protection Devices Limited Chapter 7 Page 4 of 41...

  • Page 249: Binary Inputs

    Wdg. Temp Trip BI n Oil Temp Alarm BI n Oil Temp Trip BI n POWER TRANSFORMER Blocking Diodes TRIP CIRCUIT Figure 1-2 Example of Transformer Alarm and Trip Wiring © 2018 Siemens Protection Devices Limited Chapter 7 Page 5 of 41...

  • Page 250: The Effects Of Capacitance Current

    Where a binary input is both used to influence a control function (e.g. provide a tripping function) and it is considered to be susceptible to mal-operation the external circuitry can be modified to provide immunity to such disturbances, see figure 1.2. © 2018 Siemens Protection Devices Limited Chapter 7 Page 6 of 41...

  • Page 251: Binary Outputs

    NB: If a LED number is not assigned that particular LED will not illuminate. Figure 1-4 LED configuration via the Settings \ OUTPUT CONFIG \ LED CONFIG menu © 2018 Siemens Protection Devices Limited Chapter 7 Page 7 of 41...

  • Page 252: Section 2: Protection Functions

    1.00 Increasing Time Multiplier 0.10 0.10 0.01 0.01 1000 1000 Current (x Is) Current (x Is) Figure 2-1 IEC NI Curve with Time Multiplier and Follower DTL Applied © 2018 Siemens Protection Devices Limited Chapter 7 Page 8 of 41...

  • Page 253: Selection Of Overcurrent Characteristics

    The characteristic curve shape is selected to be the same type as the other relays on the same circuit or to grade with items of plant e.g. fuses or earthing resistors. The application of IDMTL characteristic is summarised in the following table: © 2018 Siemens Protection Devices Limited Chapter 7 Page 9 of 41...

  • Page 254: Reset Delay

    FAULT Clashing conductors or re-sealing cable Electro-mechanical Relay Argus (Inst. Reset) Argus (DTL Reset) TRIP TRIP Time Time Figure 2-3 Reset Delay © 2018 Siemens Protection Devices Limited Chapter 7 Page 10 of 41...

  • Page 255: Voltage Dependent Overcurrent (51V)

    Zone 2 can only be supervised by current if the feeders are radial and cannot supply fault current with CB A open. Arc sensor pickup can be transferred between relays using IEC 61850 GOOSE allowing Zone2 50AFD to be duplicated in all relays. © 2018 Siemens Protection Devices Limited Chapter 7 Page 11 of 41...

  • Page 256: Instantaneous Overcurrent (50/50G/50N)

    LV side has a much lower level of fault current. The 50-n elements have a very low transient overreach i.e. their accuracy is not appreciably affected by the initial dc offset transient associated with fault inception. © 2018 Siemens Protection Devices Limited Chapter 7 Page 12 of 41...

  • Page 257: Blocked Overcurrent Protection Schemes

    Instantaneous elements are also commonly applied to autoreclose schemes to grade with downstream circuit reclosers and maximise the probability of a successful auto-reclose sequence – see section 4. © 2018 Siemens Protection Devices Limited Chapter 7 Page 13 of 41...

  • Page 258: Sensitive Earth-Fault Protection (50Sef)

    Based on the above considerations the minimum setting of a relay in a resistance earthed power system is 6 to 9 times the charging current per phase. © 2018 Siemens Protection Devices Limited Chapter 7 Page 14 of 41...

  • Page 259: Directional Protection (67)

    A number of studies have been made to determine the optimum MTA settings e.g. W.K Sonnemann’s paper “A Study of Directional Element Connections for Phase Relays”. Figure 2.6 shows the most likely fault angle for phase faults on Overhead Line and Cable circuits. © 2018 Siemens Protection Devices Limited Chapter 7 Page 15 of 41...
  • Page 260 Note that Directional overcurrent relays may be programmed with forward, reverse and non-directional elements simultaneously when required by the protection scheme. Load Figure 2-10 Application of Directional Overcurrent Protection © 2018 Siemens Protection Devices Limited Chapter 7 Page 16 of 41...

  • Page 261: Out Of 3 Logic

    Enabling 2-out-of-3 logic will prevent operation of the directional phase fault protection for a single phase to earth fault. Dedicated earth-fault protection should therefore be used if required. © 2018 Siemens Protection Devices Limited Chapter 7 Page 17 of 41...

  • Page 262: Directional Earth-Fault (50/51G, 50/51N, 50/51Sef)

    50/51SEF elements and used to indicate fault position. Core balance CTs are recommended for this application to achieve the necessary accuracy of residual current measurement. Feeder 1 Feeder 2 Feeder 3 Resonant coil Figure 2-13 Earth fault current distribution in Compensated network © 2018 Siemens Protection Devices Limited Chapter 7 Page 18 of 41...
  • Page 263 Application of a Wattmetric power characteristic. The directional 50/51 SEF element operation is subject to an additional sensitive residual power element which operates only on the real (wattmetric) component of residual power. © 2018 Siemens Protection Devices Limited Chapter 7 Page 19 of 41...

  • Page 264: Isolated Networks

    3 times normal phase to neutral voltage, during earth faults. The minimum polarising voltage can therefore be increased to allow very low residual current settings to be applied without risk of operation during unbalanced load conditions. © 2018 Siemens Protection Devices Limited Chapter 7 Page 20 of 41...

  • Page 265: High Impedance Restricted Earth Fault Protection (64H)

    The calculation of the value of the Stability Resistor is based on the worst case where one CT fully saturates and the other balancing CT does not saturate at all. A separate Siemens Protection Devices Limited Publication is available covering the calculation procedure for REF protection. To summarise this: The relay Stability (operating) Vs voltage is calculated using worst case lead burden to avoid relay operation for through-fault conditions where one of the CTs may be fully saturated.

  • Page 266: Negative Phase Sequence Overcurrent (46Nps)

    Their withstand is specified in two parts; continuous capability based on a figure of I , and short time capability based on a constant, K, where K = (I t. NPS overcurrent protection is therefore configured to match these two plant characteristics. © 2018 Siemens Protection Devices Limited Chapter 7 Page 22 of 41...

  • Page 267: Undercurrent (37)

    Phase Overcurrent. An Alarm is provided for θ at or above a set % of capacity to indicate that a potential trip condition exists and that the system should be scrutinised for abnormalities. © 2018 Siemens Protection Devices Limited Chapter 7 Page 23 of 41...

  • Page 268: Under/Over Voltage Protection (27/59)

    DTL also prevents operation during transient disturbances. The use of IDMTL protection is not recommended because of the difficulty of choosing settings to ensure correct co-ordination and security of supply. © 2018 Siemens Protection Devices Limited Chapter 7 Page 24 of 41...

  • Page 269: Neutral Overvoltage (59N)

    ) directly from an open delta VT or from capacitor cones – see fig. 2.20 below. VT with Capacitor Open Delta Cone Secondary Unit Capacitor Cone Adaptor Unit Relay Relay Figure 2-22 NVD Protection Connections © 2018 Siemens Protection Devices Limited Chapter 7 Page 25 of 41...

  • Page 270: Application With Capacitor Cone Units

    In the event of the load shedding being unsuccessful, a final stage of underfrequency protection should be provided to totally isolate all loads before plant is damaged, e.g. due to overfluxing. © 2018 Siemens Protection Devices Limited Chapter 7 Page 26 of 41...

  • Page 271: Power (32)

    Power factor limits can be set to provide alarms or even tripping for abnormal power factor load. Power factor can also be used to switch in and out additional plant such as capacitors © 2018 Siemens Protection Devices Limited Chapter 7 Page 27 of 41...

  • Page 272: Section 3: Ct Requirements

    Where the REF function is used then this dictates that the other protection functions are also used with class PX CTs. A full explanation of how to specify CTs for use with REF protection, and set REF relays is available on our website: www.siemens.com/energy. © 2018 Siemens Protection Devices Limited Chapter 7 Page 28 of 41...

  • Page 273: Section 4: Control Functions

    For this reason each relay in an ARC scheme must be set with identical Instantaneous and Delayed sequence of trips. Figure 4-1 Sequence Co-ordination © 2018 Siemens Protection Devices Limited Chapter 7 Page 29 of 41...

  • Page 274: Auto-Reclose Example 1

    79 SEF Prot’n Trip 2 : Delayed 79 SEF Delayed Trips to Lockout : 3 Note that Instantaneous’ trips are inhibited if the shot is defined as ‘Delayed’ © 2018 Siemens Protection Devices Limited Chapter 7 Page 30 of 41...

  • Page 275: Auto-Reclose Example 2 (Use Of Quicklogic With Ar)

    OUTPUT CONFIG>OUTPUT MATRIX: 51-1 = V1 OUTPUT CONFIG>OUTPUT MATRIX: 50-2 = V2 OUTPUT CONFIG>OUTPUT MATRIX: E1 = V3 CONTROL & LOGIC>QUICK LOGIC: E1 = V1.!V2 INPUT CONFIG>INPUT MATRIX: 79 Lockout = V3 © 2018 Siemens Protection Devices Limited Chapter 7 Page 31 of 41...

  • Page 276: Quick Logic Applications

    CONTROL & LOGIC>QUICK LOGIC: E1 = I1.I2.V1 If required a time delay can be added to the output using the CONTROL & LOGIC > QUICK LOGIC: E1 Pickup Delay setting. © 2018 Siemens Protection Devices Limited Chapter 7 Page 32 of 41...

  • Page 277: Section 5: Supervision Functions

    Any binary input can be mapped to this input, if it is energised when a trip initiation is received an output will be given immediately (the timers are by passed). © 2018 Siemens Protection Devices Limited Chapter 7 Page 33 of 41...
  • Page 278 CB Operate Time Stage 1 CBF Timer (Retrip) = 120ms Stage 2 CBF Timer (Backtrip) = 250ms Figure 5-3 Two Stage Circuit Breaker Fail Timing © 2018 Siemens Protection Devices Limited Chapter 7 Page 34 of 41...

  • Page 279: Current Transformer Supervision

    Operation is subject to a time delay to prevent operation for transitory effects. A 3-phase CT failure is considered so unlikely (these being independent units) that this condition is not tested for. © 2018 Siemens Protection Devices Limited Chapter 7 Page 35 of 41...

  • Page 280: Voltage Transformer Supervision (60Vts)

    For this reason, the relay allows these protection elements - under-voltage, directional over-current, etc. - to be inhibited if a VT failure occurs. © 2018 Siemens Protection Devices Limited Chapter 7 Page 36 of 41...

  • Page 281: Trip/Close Circuit Supervision (74T/Ccs)

    To ensure that all wiring is monitored the binary input must be at the end of the looped wiring. Resistors must be continuously rated and where possible should be of wire-wound construction. © 2018 Siemens Protection Devices Limited Chapter 7 Page 37 of 41...
  • Page 282 © 2018 Siemens Protection Devices Limited Chapter 7 Page 38 of 41...

  • Page 283: Close Circuit Supervision Connections

    It is recommended to use Resistor (R), when the low voltage BI is used in the high voltage application. For e.g: BI44 is used 220 V DC application. With use of Resistor(R) mentioned above, BI threshold will increase due to voltage drop across external resistor. © 2018 Siemens Protection Devices Limited Chapter 7 Page 39 of 41...

  • Page 284: Inrush Detector (81Hbl2)

    Operation is subject to a time delay to prevent operation for transitory effects, a minimum delay of 50sec may be recommended. © 2018 Siemens Protection Devices Limited Chapter 7 Page 40 of 41...

  • Page 285: Broken Conductor Example

    Typically estimates obtained from previous circuit-breaker maintenance schedules or manufacturers data sheets are used for setting these alarm levels. The relay instrumentation provides the current values of these counters. © 2018 Siemens Protection Devices Limited Chapter 7 Page 41 of 41...
  • Page 286 Phone: +44 (0)191 401 7901 Fax: +44 (0)191 401 5575 E-mail: [email protected] For enquires please contact our Customer Support Center Phone: +49 180/524 7000 (24hrs) Fax: +49 180/524 2471 E-mail: [email protected] www.siemens.com/protection C53000-G7076-C002-GB July 2018 www. siemens.com/energy Unrestricted Siemens Protection Devices Limited...

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