7PG21 Solkor Rf Applications Guide
Contents
1 General .............................................................................................................................................................. 3
2 Information Required when ordering .................................................................................................................. 4
3 Equipment Options............................................................................................................................................. 5
3.1 Solkor Plain Protection Schemes............................................................................................................... 5
3.2 Pilot Supervision ........................................................................................................................................ 5
3.2.1 5kV Schemes ................................................................................................................................... 5
3.2.2 15kV Schemes ................................................................................................................................. 5
3.3 Injection Intertripping 5kV or 15kV ............................................................................................................. 5
3.3.1 R mode ............................................................................................................................................ 5
3.3.2 Rf mode ........................................................................................................................................... 5
3.4 Overcurrent Guard Relay........................................................................................................................... 6
4 5/15Kv Isolation Voltage................................................................................................................................... 10
5 Pilot Cables ...................................................................................................................................................... 10
6 Pilot Supervision............................................................................................................................................... 11
7 Overcurrent Guard Relays ............................................................................................................................... 11
8 Injection Intertripping ........................................................................................................................................ 11
9 Capacitive Charging Currents .......................................................................................................................... 12
10 N/N1 Setting..................................................................................................................................................... 12
11 In-Zone Tapped Load....................................................................................................................................... 12
12 Current Transformer Requirements.................................................................................................................. 13
©2010 Siemens Protection Devices Limited Chapter 3 Page 2 of 15