Author Topic: How to Test an Electric Motor  (Read 563 times)

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Offline electronbeanTopic starter

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  • Country: fr
How to Test an Electric Motor
« on: December 30, 2023, 04:51:20 am »
I am struggling with this electric motor.

This motor is composed of these parts:

Rotor: https://ibb.co/FDXB80v
Stator: https://ibb.co/FWqnt60

Is managed by a speed regulator (PWM). I want to test this motor by applying 230VAC to its terminals to see if the motor works well. I know, but I don't have an oscilloscope to debug PWM :P My question and doubt are: If I put 230VAC directly into the leads of this motor, should it work, right?

This is the two wire I have to connect the motor: https://ibb.co/nLpZ4mT
 

Online Ian.M

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Re: How to Test an Electric Motor
« Reply #1 on: December 30, 2023, 05:37:03 am »
It appears to be a universal motor so would be capable of running on AC.  However for speed controlled motors it isn't uncommon for manufacturers to use a 100V motor world-wide and use a region dependent speed control module that limits the max. average motor voltage to 100V, so bypassing the speed controller in a 220V-240V country may be risky.

Try running it with no load on its shaft, on 12V DC.  It should spin steadily at a smallish fraction of its normal speed.  If its jerky there's probably something wrong with it.

Also try a low wattage mains incandescent bulb in place of the motor.  (not greater than 10% of the motor watts).  The speed control should vary its brightness.
 


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