Can a Motor rated 380 V, 50 Hz, 3 ph be operated on 460 V, 60 Hz, 3 ph supply

[PZC]

 

[mikekilroy]

yes. it will spin 6/5 faster (1800rpm instead of 1500rpm)

http://www.KilroyWasHere<dot>com

 

[PZC]

@ mikekilroy - what impact would be from the higher voltage ( 460 V is 21 % higher than the rated nominal of 380 V )

 

[ScottyUK]

It would keep the volts/Hz ratio roughly correct, so the motor would produce rated torque but at the higher speed. That is to say, your motor would produce 20% more power at 460V / 60Hz. Whether that increase in power matches how your load changes with a 20% increase in speed is another question.

 

[jraef]

For example, if your load is a centrifugal pump or fan with no other means of flow control, the 20% increase in speed will result in a load power requirement that is 172% of what it originally required, so your motor will be too small. The devil is in the details.

"Will work for (the memory of) salami"

 

[PZC]

@jraef - A good catch indeed !

http://www.eng-tips.com/viewthread.cfm?qid=357789

 

[PZC]

@jraef - A good catch indeed !