577 volts to 480volts?
577 volts to 480volts?
(OP)
We are running 480 volt 3 pahse at our facility. We found a deal on a piece of equitment we need,but the motor is wound for 577 volts. Would it be alright to run this motor at 480 volts and expecting slightly more amp draw?





RE: 577 volts to 480volts?
If you are getting such a good deal, you'll be able to buy an autotransformer with all that extra money and boost the voltage up to what it should be.
RE: 577 volts to 480volts?
RE: 577 volts to 480volts?
Pretty sure you won't be happy running the 577 V motor at 480 V.
RE: 577 volts to 480volts?
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: 577 volts to 480volts?
Every time you ask something about motors, you need to write all the details from the nameplate..
Zlatkodo
RE: 577 volts to 480volts?
RE: 577 volts to 480volts?
Motor current = 5 Amps
Boost needed = 120 volts
KVA = 5A x 120V / 1000 = 0.6 KVA
For this example motor you would need 2 boost rated 480:120 Volt transformers connected in open delta auto-transformer boost configuration. Dry type transformers may be mounted outside a panel or control enclosure. I have mounted them on the floor beside the motor at times.
Bill
--------------------
"Why not the best?"
Jimmy Carter