Restricted Earth fault protection active because Unbalance load of transformer
Restricted Earth fault protection active because Unbalance load of transformer
(OP)
Is there any Possibilities Restricted Earth Fault Protection of Transformer active because of unbalance load,Fault on the transmission line, or other cause besides ground fault on HV side?? I'm curious because recently two of our Station Service Transformer trip simmultaneously, and both are trip because of REF protection.
Thank you for the information
Thank you for the information





RE: Restricted Earth fault protection active because Unbalance load of transformer
RE: Restricted Earth fault protection active because Unbalance load of transformer
RE: Restricted Earth fault protection active because Unbalance load of transformer
If you have event reports from the trips you incurred, check these, as they should also show you any CT polarities / magnitudes that are not logical. You should also check against your settings.
If you have the data, post it here for a better analysis.