Siemens Argus 7SR21 Technical Manual page 479

Table of Contents
Document Release History ............................................................................................................... 2
Software Revision History ................................................................................................................ 2
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
2.1 Current Transformer Circuits ................................................................................................ 6
2.2 External Resistors ................................................................................................................ 6
2.3 Fibre Optic Communication .................................................................................................. 6
2.4 Front Cover .......................................................................................................................... 6
2.5 Disposal ............................................................................................................................... 6
2.5.1 Environmental Protection Hints ................................................................................ 6
Section 3: Dimensions and Panel Fixings ....................................................................................... 8
3.1 Relay Dimensions and Weight .............................................................................................. 8
3.2 Fixings ............................................................................................................................... 11
3.2.1 Crimps ................................................................................................................... 11
3.2.2 Panel Fixings ......................................................................................................... 11
3.2.3 Fibre Optic Connectors .......................................................................................... 11
3.2.4 Connectors Ethernet Option ................................................................................... 11
Section 4: Rear Terminal Drawings ................................................................................................ 12
4.1 E6 Case ............................................................................................................................. 12
4.2 E8 Case ............................................................................................................................. 14
4.3 E12 Case ........................................................................................................................... 16
Section 5: Connection/Wiring/Diagrams ........................................................................................ 19
5.1 Wiring Diagram: 7SR21 OC/EF Relay ................................................................................ 19
5.2 Wiring Diagram: 7SR22 Directional OC/EF Relay ............................................................... 20
Section 6: Data Comms Connections ............................................................................................ 21
6.1 Standard RS485 Connections ............................................................................................ 21
6.2 IRIG-B Connections ........................................................................................................... 21
6.3 Additional (Optional) Fibre Optic Connections..................................................................... 22
6.4 Additional (Optional) RS485 Connections ........................................................................... 23
6.5 Additional (Optional) RS232 Connections ........................................................................... 23
6.6 Additional (Optional) Ethernet Connection for IEC 61850 .................................................... 24
6.7 Ethernet Network Redundancy IEC 61850.......................................................................... 25
6.7.1 RSTP - Rapid Spanning Tree Protocol .................................................................. 26
6.7.2 PRP - Parallel Redundancy Protocol ..................................................................... 26
6.7.3 HSR - High Availability Seamless Redundancy Protocol ........................................ 28
Section 7: Connection Diagrams.................................................................................................... 29
7.1 Typical Connection: 7SR22 Directional OC/EF and REF..................................................... 29
7.2 Typical Connection: 7SR22 Directional OC/EF and NVD .................................................... 30
7.3 Typical Connection: 7SR22 Directional OC/EF and NVD .................................................... 31
7.4 Typical Connection: 7SR22 Directional OC/EF and NVD .................................................... 32
7.5 Typical Connection: 7SR22 Directional OC and EF ............................................................ 33
7.6 Typical Connection: 7SR22 Connected to VTs and Capacitor Cone Unit ............................ 34
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