Over current condition
Over current condition
(OP)
I'm looking for trouble shooting help to isolate problem of imbalanced current condition. Source power is 220 through Step-up transformer 3ph 480v to VFD (ABB 550). I'm running a 30 hp motor. The imbalance persists with varying the RPMs. Current is 8 amps higher on one leg at 1500 RPM. Not sure if motor is the problem or VFD.






RE: Over current condition
RE: Over current condition
Bill
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"Why not the best?"
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RE: Over current condition
RE: Over current condition
RE: Over current condition
RE: Over current condition
RE: Over current condition