Protection Engineering Basics and Schemes Protection Engineering | Page 79

now see there are five test sockets , all sockets are used
for capacitor bank protection check . these sockets must
be wired properly , also one thing which must be kept in
during testing is that never remove test socket cover
while system is alive , it is not recommended.
another micom relay is installed P139, metering
arrangement is shown also PM and DPDM.
TS2 have PT connection and SEL 487 connection
TS1 have CT connection and SEL 487V connection
TS3 have metering connection, CT connection and C-70
Relay connection
TS4 have PT connection and C-70 relay connection.
TS6 have P139 relay connection
Test Socket is used for testing and metering purpose of
Protection and metering equipment, always use when
circuit is dead, live line testing is not recommended. With
help of test sockets we can test our relays and other
equipments with disturbing the equipment wirings.
here we have one multi core and multi ratio current
transformer, the difference in it is simple ,in multi core
pg. 79