Self Powered Current Relay
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Features
No Auxiliary supply
Programmable operating characteristics
Low burden
Wide setting range
LED fault flag indication
Principle of Operation:
If a fault occurs at the distribution end and the respective protective relay operates but the corresponding CB fails to operate then the system may have to face catastrophic consequences. JRC-154 is a instantaneous and definite time over current relay that also monitors the non-potential contacts of the downstream protective relays. The relay is designed to trip the feeder end CB if the protective relay at the distribution end operates but its corresponding CB fails to operate.