3ph motors

[tullynagrow]

is it possible to get a 3ph motor rewound to single phase as i need same housing for apump

 

[Andy Smith]

What size motor do you have? If its small you are probably better off buying new Suppose its possible but never heard of anyone doing it.

 

[deakin09]

is it possible to get a 3ph motor rewound to single phase as i need same housing for apump

Most motors have their windings potted in epoxy for mechanical reasons. If you need a single phase motor you would do better to sell the three phase motor you can't use to someone who can and buy a replacement motor. It will be quicker, easier, and probably cheaper

regards chris

 

[Guest123]

Hi

Agree with above, purchase new single phase motor, more than likely cheaper than re-winding, also dont think it can be done anyway.

 

[boatnik1]

is it possible to get a 3ph motor rewound to single phase as i need same housing for apump

Not usually practical as previously said but depending on the HP/KW and connections you might be able to run it on 1P with the addition of run capacitors but with slightly reduced HP/Kw.

Does the plate say 220/380v and star delta connection. Whats the frame size?

Lets know the plate details inc. volts- HP/Kw.-amps.- connectionsand pump type, and I'll see if it's a goer.

 

[harji66]

i WOULD SUGGEST THAT YOU KEEP THE MOTOR AS IT IS AND BUY AN ac DRIVE THAT CONVERTS SIGLE PHASE TO 3 PHASE

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I am new to this forum and am looking for a solution to my problem. I have to wind a squirrel cage AC ind. motor and i onle have a sketchy data. Please help me design it. The capacity of motor is 3 KW, works on 55 volts 3~ AC supply from a transformer. It is a two pole motor. Stamping dia is 180 mm, rotor dia is 95 mm and stack length is 100 mm. Originally it was wound with 8X22SWG wire, 4 coils of 5 turns each, star connection, pitch 1-8. total copper wire weight was 3.1 kGS. PLEASE HELP ME CONFIRM THE DATA

 

[Tiny Spark]

It can be done, we had a motor of a 3 phase pillar drill converted to 240v but you would be better off buying a new compatible motor.

 

[Marvo]

I would suggest it's a bad idea to try rewind a 3 phase motor as a single phase. Firstly the pole arrangement of the stator won't be compatible and secondly the way the rotor is laminated also won't be ideal. If on the slim chance the motor runs after rewinding it would be very inefficient, short on power, slow to start and would probably overheat.

 

[Carl S]

The expense of converting the motor will be far higher than an inverter.

 

[Darkwood]

I would think the OP has a conclusion to his problem as it was posted many yrs ago!!