Differential Relay Protection
Differential Relay Protection
(OP)
Coworker recommended installing differential relay protection on a 12kv feeder that is a mile long. I typically see differential protection on transformers. Anyone know the why one might use it on a feeder?
Thanks
b
Thanks
b






RE: Differential Relay Protection
RE: Differential Relay Protection
RE: Differential Relay Protection
Also used for short OHL where the pilot cable can be included on the towers or underground.
rasevskii
RE: Differential Relay Protection
RE: Differential Relay Protection
And there are other options, but a differential (or pilot) is about the only way to be sure of your zone.
RE: Differential Relay Protection
RE: Differential Relay Protection
In this way, not only that we have fast fault clearing, we are also able to segregate the fault sensing and therefore provide indication whether the fault is within the transformer or within the cable feeder.