Standby Earth Fault Protection Testing

Standby Earth Fault Protection Testing

We carry out Standby Earth Fault Protection Testing. Standby Earth Fault Protection is a course protection used predominantly as a back up to other protection.

The protection consists of a CT and basic relay, the CT is placed as close as possible on the earth path return to the star point of a transformer.

An earth fault missed by other protection would pass fault current through the standby earth fault CT registering an abnormal current in the secondary protection scheme which would than trip the relay and corresponding circuit breaker.

For more information about how C&P can help with your Standby Earth Fault Protection Testing, please call 01792 897002 or email info@nullcpengineering.co.uk

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