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4160vmotor

4160vmotor

4160vmotor

(OP)
can we install a  3 phase 4160v motor on 4000v source without problems any comments welcome  

RE: 4160vmotor

amper,

The opposite is possible.

Question please.

it looks like a NEMA motor. If it so,does the name plate say that motor rated voltage is 4160 V or 4000 V?  

RE: 4160vmotor

Generally, motor designs have a +-10% tolerance, but generallyyou see it the other way around; a motor will be designed for 4000V and connected to a 4160V source, because the lower design voltage makes allowances for some additional voltage drop when you have a long distance from the controller and the motor. If your motor is truly designed for 4160V and you truly have only a 4000V supply, then it might be OK, but you will have very little tolerance for any additional voltage drop.

So the real answer is; it depends on other factors. The best people to ask will be the motor mfr., and give them ALL of the information, i.e. motor lead length, conductor size etc.


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RE: 4160vmotor

It depends of the load. If your load requires 100% of the motor capacity connecting on lower voltage will pull higher than rated current. If you do not require full capacity you should not have any problem with lower voltage.

RE: 4160vmotor

This motor is a 4160V/ 60 Hz I assume?  Is you supply also 60 Hz or is it 50 Hz?

------------------------------------------------------------------------
If it is broken, fix it.  If it isn't broken, I'll soon fix that.

RE: 4160vmotor

(OP)
the original motor is a old hitachi unimag nema 4000v 60 hz 32,,, ampe 250ho coupling with a gould pumps 3600model 610 api .

RE: 4160vmotor

So then was your original post a dyslexic error and you have a 4000V motor and a 4160V supply then? If you do, you are golden; this is normal.


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RE: 4160vmotor

That is the same ratio as a 200V rated motor connected to a 208V supply

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

RE: 4160vmotor

Quote:

So then was your original post a dyslexic error?

Naw, looks more like a cell-phone impairment.

Keith Cress
kcress - http://www.flaminsystems.com

RE: 4160vmotor

amper,

This dose not look like a big problem,just keep in mind that the motor can get slightly warmer when run at a lower voltage.

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