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7SR21 & 7SR22 Argus Installation Guide
Contents
Document Release History....................................................................................................................1
Software Revision History.....................................................................................................................1
Contents ..................................................................................................................................................2
List of Figures.........................................................................................................................................3
Section 1: Installation ............................................................................................................................4
1.1
Unpacking, Storage and Handling ............................................................................................4
1.2
Recommended Mounting Position............................................................................................4
1.3
Wiring ........................................................................................................................................4
1.4
Earthing.....................................................................................................................................4
1.5
Ancillary Equipment ..................................................................................................................4
Section 2: Equipment Operating Conditions.......................................................................................5
2.1
Current Transformer Circuits ....................................................................................................5
2.2
External Resistors.....................................................................................................................5
2.3
Fibre Optic Communication ......................................................................................................5
2.4
Front Cover ...............................................................................................................................5
Section 3: Dimensions and Panel Fixings ...........................................................................................6
3.1
Relay Dimensions and Weight..................................................................................................6
3.2
Fixings.......................................................................................................................................7
3.2.1
Crimps ..........................................................................................................................7
3.2.2
Panel Fixings................................................................................................................7
3.2.3
Fibre Optic Connectors ................................................................................................7
Section 4: Rear Terminal Drawings ......................................................................................................8
4.1
E6 Case ....................................................................................................................................8
4.2
E8 Case ..................................................................................................................................10
4.3
E8 Case ..................................................................................................................................11
Section 5: Connection/Wiring/Diagrams............................................................................................12
5.1
Wiring Diagram: 7SR21 OC/EF Relay....................................................................................12
5.2
Wiring Diagram: 7SR22 Directional OC/EF Relay..................................................................13
Section 6: Data Comms Connections ................................................................................................14
6.1
Standard RS485 Connections ................................................................................................14
6.2
IRIG-B Connections ................................................................................................................14
6.3
Additional (Optional) Fibre Optic Connections........................................................................15
6.4
Additional (Optional) RS485 Connections ..............................................................................16
6.5
Additional (Optional) RS232 Connections ..............................................................................16
Section 7: Connection Diagrams ........................................................................................................17
7.1
Typical Connection: 7SR22 Directional OC/EF and REF.......................................................17
7.2
Typical Connection: 7SR22 Directional OC/EF and NVD ......................................................18
7.3
Typical Connection: 7SR22 Directional OC/EF and NVD ......................................................19
7.4
Typical Connection: 7SR22 Directional OC/EF and NVD ......................................................20
7.5
Typical Connection: 7SR22 Directional OC and EF ...............................................................21
7.6
Typical Connection: 7SR22 Connected to VTs and Capacitor Cone Unit..............................22
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