Siemens 7SR242 Duobias Technical Manual page 233

Contents
Installation Guide .............................................................................................................................. 1
Document Release History ............................................................................................................... 1
Contents ............................................................................................................................................ 3
List of Figures ................................................................................................................................... 4
Section 1: Installation ....................................................................................................................... 5
1.1 Packaging ............................................................................................................................ 5
1.2 Unpacking, Storage and Handling ........................................................................................ 5
1.3 Recommended Mounting Position ........................................................................................ 5
1.4 Wiring .................................................................................................................................. 5
1.5 Earthing ............................................................................................................................... 5
1.6 Ancillary Equipment.............................................................................................................. 5
1.7 Disposal ............................................................................................................................... 6
Section 2: Equipment Operating Conditions ................................................................................... 7
Current Transformer Circuits........................................................................................................ 7
External Resistors ....................................................................................................................... 7
Fibre Optic Communication ......................................................................................................... 7
Front Cover ................................................................................................................................. 7
Disposal ...................................................................................................................................... 7
Section 3: Dimensions and Panel Fixings ....................................................................................... 8
3.1 Relay Dimensions ................................................................................................................ 8
3.2 Fixings ............................................................................................................................... 11
3.2.1 Crimps ................................................................................................................... 11
3.2.2 Panel Fixings ......................................................................................................... 11
Section 4: Rear Terminal Drawings ................................................................................................ 12
4.1 E8 CASE............................................................................................................................ 12
E10 CASE ................................................................................................................................. 14
Section 5: Connection/Wiring/Diagrams ........................................................................................ 17
5.1 Wiring Diagram: 7SR242 Relay .......................................................................................... 17
Section 6: Data Comms Connections ............................................................................................ 19
6.1 RS485 Connection ............................................................................................................. 19
6.2 IRIG-B Connections ........................................................................................................... 19
6.3 Optional Fibre Optic Connections ....................................................................................... 20
6.4 Optional Additional RS485 Connections ............................................................................. 21
6.5 Optional RS232 Connections ............................................................................................. 21
6.6 Additional (Optional) Ethernet Connection for IEC 61850 .................................................... 22
Section 7: Connection Diagrams.................................................................................................... 23
7.1 Typical AC Connections: 7SR242 ....................................................................................... 23
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Chapter 5) 7SR242 Duobias Installation Guide
Chapter 5 Page 3 of 24