ref relay testing
ref relay testing
(OP)
how can we test a relay for and REF PROTECTION,A SPEEDY REPLY WILL BE APPRECIATED
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RE: ref relay testing
RE: ref relay testing
1600KVA TRAFO,11KV/400V,6.39% IMPEDANCE,
PHASE CT-3000/5A
GROUND CT-3000/5A
SENSITIVE GROUND CT-3000/5A
HIGH IMPEDANCE SCHEME
RE: ref relay testing
As a practical matter if it's tripped, the built in oscillography and sequence of events in the relay will tell, on review, if its operating correctly or falsely.
David
RE: ref relay testing
Thnx in advance
LatifiSh
RE: ref relay testing
RE: ref relay testing
From the manual it looks like it's just an over current element, the trick is how it's wired up, with the residual and the neutral over current in parallel. For testing in the relay it's just an over current test. GE does want a stabilizing resistor in the circuit for proper operation.
David
RE: ref relay testing