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Motor Voltage (step down?)

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cmazzilli

Industrial
Joined
Sep 14, 2005
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1
Location
US
Hello -
I have a 208/240v Motor, 5.9Amps/2.4 Amps single phase. There are three wires coming out of the junction box on the motor.
One of each:Red, Black and White.

Question: Is it possible to step this down to 110/120v standard household current? If so, how?

Thank you in advance for your patience!!!
 
If the nameplate doesn't list it, then probably not.
 
Transformer can raise the 110 volt and if you raise the
voltage X times, it will need x times higher corrent
on the input side .

e.g if I need 500 V 6A from 110V input I will need
i=6*500/110= 27.27 A.



<nbucska@pcperipherals DOT com> subj: eng-tips
read FAQ240-1032
 
Hello CMAZZILLI,

With only three wires you can´t do it.If do you need to energize this motor at 110-120 Volts you need to take out from the windings 3 Wires more. For it send the motor to electric motor repair shop and they will help you. The only way to make it work with 110-120 V standard household is using a single phase transformer in order to raise the voltage to 220 V.In this case is better you make an economic analysis because if possible will better for you buy a new motor.

Best Regards

`PETRONILA.
 
No, you can not externally reconnect for half voltage and most probably it will need a rewinding.
Yes, for that size motor, the best solution is to buy a new one according to your supply requirements.
 
IF the windings inside the motor (start & runs) are connected in SERIES the motor can be connected in parallel for 110 volts.
 
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