The relay provides time graded earth leakage protection
for generators, transformers, capacitors, feeder etc
EARTH LEAKAGE RELAY
Principle of Operation:
JRC 974 provides earth leakage protection for power systems. The relay operating time is determined by a programmable definite time delay. The
relay measures the earth leakage current from the CBCT and if it exceeds the set threshold, it extends a trip signal after the operating time. The relay output
contacts are self reset type. TEST button facilitates verification of relay contacts.