can we run the 360 volts, 50Hzs motor on 460volts 60Hzs
can we run the 360 volts, 50Hzs motor on 460volts 60Hzs
(OP)
i have 360 volts, 50Hzs, 3 KW motor,i want to run its on 460volts 60Hzs in canada can it be run this volts? if no, then what kind of modification require to run this motor.





RE: can we run the 360 volts, 50Hzs motor on 460volts 60Hzs
The standard supply voltage in Canada is 480V. 480V may saturate the motor and quickly burn t out.
Two points;
1> If your motor is actually the common 380V rather than 360V, you are safe up to 456V plus 10% or about 500V.
2< If you have a legacy 440V supply, you are OK but if you have 480V you should check that it does not go overvoltage with load changes on the grid.
Bill
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"Why not the best?"
Jimmy Carter
RE: can we run the 360 volts, 50Hzs motor on 460volts 60Hzs
FAQ237-1224: Motors: Changing between a 50 and 60Hz supply.
If your voltage is too high, the simplest solution would be to get a new motor, or put an autotransformer to buck the voltage down a little.
"An 'expert' is someone who has made every possible mistake in a very narrow field of study." -- Edward Teller
RE: can we run the 360 volts, 50Hzs motor on 460volts 60Hzs
RE: can we run the 360 volts, 50Hzs motor on 460volts 60Hzs
RE: can we run the 360 volts, 50Hzs motor on 460volts 60Hzs
I note with interest that the new harmonized IEC voltage of 230/400V is a perfect V/Hz match with the North American standard 480V.
AS far as the V/Hz ratio is concerned, 400V IEC motors will now be a straight across conversion with 480V NEMA motors.
Loading issues must still be evaluated.
Bill
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"Why not the best?"
Jimmy Carter
RE: can we run the 360 volts, 50Hzs motor on 460volts 60Hzs
Would this be cost-effective for a typical 3 kW motor? I'm skeptical.
"An 'expert' is someone who has made every possible mistake in a very narrow field of study." -- Edward Teller
RE: can we run the 360 volts, 50Hzs motor on 460volts 60Hzs
Keith Cress
kcress - http://www.flaminsystems.com
RE: can we run the 360 volts, 50Hzs motor on 460volts 60Hzs
It may not be wise to run it at the 20% above it's design speed depending on the type of rotor. Is it a squirrel cage motor?
Regards . . .
Jim S. Nasby
RE: can we run the 360 volts, 50Hzs motor on 460volts 60Hzs
Of course the speed will be 20% higher, but that is no problem for the motor.
RE: can we run the 360 volts, 50Hzs motor on 460volts 60Hzs
Well that kinda depnds on the load doesn't it? Try this with a centrifugal pump load and expect your motor to either trip the overload relay or burn up. 20% more speed means more power - some loads have a quadratic or cubic power relationship with speed so even a small increase in speed leads to a significant increase in power.
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If we learn from our mistakes I'm getting a great education!