The relay provides earth fault protection of
Generators,Motors, Transformers, Feeder etc., and where
definite time protection is required.
OVER CURRENT RELAY
Principle of Operation:
The relay provides single pole over current protection for power systems. Relay operating time is determined by set definite time. The relay measures
the current from input CT and if it exceeds the set threshold, it extends a trip signal after the operating time, which is determined by set definite time. The relay
output contacts are self reset type. TEST button facilitates testing of relay