Siemens 7SR210 Installation Manual
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Siemens 7SR210 Installation Manual

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7SR210
Non-Directional Relay
7SR220
Directional Relay
Installation Guide
(Software Version 2435H85008R7a-7a) (7SR210)
(Software Version 2435H85009R7a-7a) (7SR220)
The copyright and other intellectual property rights in this document, and in any model or article produced from it
(and including any registered or unregistered design rights) are the property of Siemens Protection Devices
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.
While the information and guidance given in this document is believed to be correct, no liability shall be accepted
for any loss or damage caused by any error or omission, whether such error or omission is the result of
negligence or any other cause. Any and all such liability is disclaimed.
©2011 Siemens Protection Devices Limited

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Summary of Contents for Siemens 7SR210

  • Page 1 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 2: Document Release History

    7SR210 & 7SR220 Installation Guide Document Release History This document is issue 2010/05. 2011/05 First issue Page 2 of 24 ©2011 Siemens Protection Devices Limited...

  • Page 3: Table Of Contents

    7SR210 & 7SR220 Installation Guide Table of Contents Document Release History........................2 Table of Contents ...........................3 List of Figures............................4 Section 1: Installation ..........................5 1.1 Unpacking, Storage and Handling ....................5 1.2 Recommended Mounting Position....................5 1.3 Wiring ............................5 1.4 Earthing.............................5 1.5 Ancillary Equipment ........................5 Section 2: Equipment Operating Conditions..................6...

  • Page 4: List Of Figures

    7SR210 & 7SR220 Installation Guide List of Figures Figure 3.1-1 Overall Dimensions (mm) and panel Drilling for Size E6 Epsilon case (Typically 4.2 kg)........................7 Figure 3.1-2 Overall Dimensions (mm) and Panel Drilling for Size E8 Epsilon Case (Typically 5.3 kg)........................7 Figure 4.1-1 E6 Standard Comms (USB Front Port, Rear RS485) (See Note 2) ........9...

  • Page 5: Section 1: Installation

    If damage has been sustained a claim should be immediately be made against the carrier, also inform Siemens Protection Devices Limited, and to the nearest Siemens agent, using the Defect Report Form in the Maintenance section of this manual.

  • Page 6: Section 2: Equipment Operating Conditions

    Front Cover The front cover provides additional securing of the relay element within the case. The relay cover should be in place during normal operating conditions. Page 6 of 24 ©2011 Siemens Protection Devices Limited...

  • Page 7: Section 3: Dimensions And Panel Fixings

    7SR210 & 7SR220 Installation Guide Section 3: Dimensions and Panel Fixings Relay Dimensions and Weight Relays are supplied in the modular size E6 or E8 The following drawings are available which give panel cut-out and mounting details. Case Earth 201.5 216.5...

  • Page 8: Fixings

    Typical rear terminal block fixing kit (1kit per terminal block fitted to relay) Consists of: 28 x M4, 8mm Screws 28 x M4 Lock Washer 3.2.3 Fibre Optic Connectors The relay has Fibre-Optic ST (BFOC/2.5) bayonet connectors fitted when specified. Page 8 of 24 ©2011 Siemens Protection Devices Limited...

  • Page 9: Section 4: Rear Terminal Drawings

    7SR210 & 7SR220 Installation Guide Section 4: Rear Terminal Drawings E6 Case Figure 4.1-1 E6 Standard Comms (USB Front Port, Rear RS485) (See Note 2) Figure 4.1-2 E6 Standard + Additional Comms (IRIG-B, 2 x F.O. (ST Connectors)) Notes 1) Recommended terminations are pre-insulated & must be crimped using approved tooling.

  • Page 10: Figure 4.1-3 E6 Standard + Additional Comms (Irig B + Rs485) (See Note 2)

    7SR21 & 7SR22 - Installation Guide Figure 4.1-3 E6 Standard + Additional Comms (IRIG B + RS485) (See Note 2) Figure 4.1-4 E6 Standard + Additional Comms (IRIG B + RS232) Page 10 of 24 ©2011 Siemens Protection Devices Limited...

  • Page 11: E8 Case

    7SR210 & 7SR220 Installation Guide E8 Case Figure 4.2-1 E8 Standard Comms (USB Front Port, Rear RS485) (See Note 2) Figure 4.2-2 E8 Standard + Additional Comms (IRIG B, 2 x F.O. (ST Connectors)) Notes 1) Recommended terminations are pre-insulated & must be crimped using approved tooling.

  • Page 12: Figure 4.3-1 E8 Standard + Additional Comms (Irig B + Rs485) (See Note 2)

    2) RS485 (block ”B” terms 14, 16, 18, 20) connections to this communication facility is by screened, twisted pair cable. On site when wiring other facilities ensure that these terminals are not obscured by other wiring runs. Cable should be RS485 compliant. Page 12 of 24 ©2011 Siemens Protection Devices Limited...

  • Page 13: Section 5: Connection/Wiring/Diagrams

    7SR210 & 7SR220 Installation Guide Section 5: Connection/Wiring/Diagrams Wiring Diagram: 7SR21 OC/EF Relay Figure 5.1-1 Connection Diagram for 7SR21 Relay ©2011 Siemens Protection Devices Limited Page 13 of 24...

  • Page 14: Wiring Diagram: 7Sr22 Directional Oc/Ef Relay

    BO 1 GND. BO 2 BI 1 BO 3 BI 2 BO 4 BI 3 BO 5 Screen BO 6 Term. Figure 5.2-1 Connection Diagram for 7SR22 Relay Page 14 of 24 ©2011 Siemens Protection Devices Limited...

  • Page 15: Section 6: Data Comms Connections

    7SR210 & 7SR220 Installation Guide Section 6: Data Comms Connections Standard RS485 Connections The standard RS485 communication port is located on terminal block 2 at the rear of the relay and can be connected using a suitable RS485 120Ω screened twisted pair cable.

  • Page 16: Additional (Optional) Fibre Optic Connections

    Figure 6.3-2 Data Comms to Multiple Devices Using 7SG24 and F.O. Ring Network The F.O. data communications link with a particular relay will be broken if the relay element is withdrawn from the case, all other relays will still communicate. Page 16 of 24 ©2011 Siemens Protection Devices Limited...

  • Page 17: Additional (Optional) Rs485 Connections

    7SR210 & 7SR220 Installation Guide Additional (Optional) RS485 Connections The additional (optional) RS485 communication port is located at the rear of the relay and can be connected using a suitable RS485 120 ohm screened twisted pair cable. The RS485 electrical connection can be used in a single or multi-drop configuration. The RS485 master must support and use the Auto Device Enable (ADE) feature.

  • Page 18: Additional (Optional) Ethernet Connection For Iec 61850

    50mm is acceptable, 62.5 / 125μm glass fibre is recommended for all distances. Figure 6.6-1 Ethernet connection for IEC 61850 (star connection) Figure 6.6-2 Ethernet connection for IEC 61850 (ring connection) Page 18 of 24 ©2011 Siemens Protection Devices Limited...

  • Page 19: Section 7: Connection Diagrams

    7SR210 & 7SR220 Installation Guide Section 7: Connection Diagrams Typical Connection: 7SR22 Directional OC/EF and REF Figure 7.1-1 7SR22 Applied to Transformer Incomer ©2011 Siemens Protection Devices Limited Page 19 of 24...

  • Page 20: Typical Connection: 7Sr22 Directional Oc/Ef And Nvd

    7SR21 & 7SR22 - Installation Guide Typical Connection: 7SR22 Directional OC/EF and NVD Figure 7.2-1 7SR22 Applied to Transformer Incomer Including HV NVD Protection Page 20 of 24 ©2011 Siemens Protection Devices Limited...

  • Page 21: Typical Connection: 7Sr22 Directional Oc/Ef And Nvd

    7SR210 & 7SR220 Installation Guide Typical Connection: 7SR22 Directional OC/EF and NVD NOTES 1) CT circuits are shown connected to 1A tap – use alternative tap for 5A rated CTs. 2) CT and Earth connections are typical only. 3) Application shows use of V as an NVD input.

  • Page 22: Typical Connection: 7Sr22 Directional Oc/Ef And Nvd

    1) CT circuits are shown connected to 1A tap – use alternative tap for 5A rated CTs. 2) CT and Earth connections are typical only. 3) Voltage Config:-V , 3V Figure 7.4-1 7SR22 Applied to Feeder Page 22 of 24 ©2011 Siemens Protection Devices Limited...

  • Page 23: Typical Connection: 7Sr22 Directional Oc And Ef

    7SR210 & 7SR220 Installation Guide Typical Connection: 7SR22 Directional OC and EF NOTES 1) CT circuits are shown connected to 1A tap – use alternative tap for 5A rated CTs. 2) CT and Earth connections are typical only. 3) Vee Connected VT: Phase Voltage Config:-VA,VB,VC 4) DEF elements must be NPS polarised (Vo polarising not applicable) Figure 7.5-1 7SR22 Applied to Feeder - No Zero Sequence Voltage Source...

  • Page 24: Typical Connection: 7Sr22 Connected To Vts And Capacitor Cone Unit

    3) Vee Connected VT: Phase Voltage Config:-Va,Vb,Vc 4) DEF elements must be NPS polarised (Vo polarising not applicable) 5) V used for NVD input Figure 7.6-1 7SR22 Applied to Feeder with Capacitor Cones Fitted Page 24 of 24 ©2011 Siemens Protection Devices Limited...

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7sr220

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