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250 kW 380V motor, is this practical?

250 kW 380V motor, is this practical?

250 kW 380V motor, is this practical?

(OP)
Hi,
    We have a project in China that requires a 250kW variable speed motor (3,000 r/m).
Is this practical for a 380V 50 Hz supply
The application is centrifugal pump.
Thanks in advance
Roy

RE: 250 kW 380V motor, is this practical?

By British standards it's a big motor to be on the LV system. If it were not for the VSD I would say it was big enough to be on the MV system, but a variable speed drive is certainly feasible at that power level. You might want to pay attention to the harmonics introduced by the drive anm the effect on other loads fed from this bus.
  

----------------------------------
  
If we learn from our mistakes I'm getting a great education!
 

RE: 250 kW 380V motor, is this practical?

It's certainly possible.   

RE: 250 kW 380V motor, is this practical?

Yes. Such motor are available . Google it!

RE: 250 kW 380V motor, is this practical?

I was looking at a 400 Hp, 460 V 60 Hz motor yesterday.
That converts to 247 kW at 380V, 50 Hz.
Soft starter, combustion air blower duty.

Bill
--------------------
"Why not the best?"
Jimmy Carter

RE: 250 kW 380V motor, is this practical?

(OP)
Thanks Guys, I appreciate the rapid response
regards
Roy

RE: 250 kW 380V motor, is this practical?

roydm
From a VFD perspective, it is certainly possible. We manufacture units covering 380-500Vac up to 800kW.
I would check the current rating of the motor you are going to connect to, just to be sure you have the right drive for the motor.
oh, and double check it is 380Vac. I have seen voltages down to 360Vac in China, and this really screws you up...

 

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