What is the possible cause/causes of intermittent Tripping of Differential Current Protection of Alternator.?
I have this issue occassionally..
Differential Current Fault
What is the possible cause/causes of intermittent Tripping of Differential Current Protection of Alternator.?
I have this issue occassionally..
The cause is likely to be a differential current fault! It provides rapid detection of generator Φ to Φ or Φ-G faults.
How often is it happening? I assume the generator is big?
Charlie Farrow
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It's 1.2Mw 480v Alternator.
I performed insulation test from phase to phase and phase to neutral.
The readings were 1.2 megaohms from phase to G.>is this the possible cause?
Ph to ph is still acceptable=10megaohms/volt.
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