How to test AC motor resistance test

AI Thread Summary
To test the resistance and continuity of a 3-phase AC motor, a Megger is essential for insulation testing. Begin by switching off the motor's breaker and ensuring it is locked out, then verify that all phase-to-phase and phase-to-ground voltages read 0 volts using a voltmeter. The specific testing procedure may vary depending on the equipment used. It's crucial to understand the various tests applicable to electric motors, as multiple factors determine their condition. Always prioritize safety, as working with mains voltages can be dangerous.
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How to test AC motor resistance test an continuity test for 3 phase
 
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Welcome to PF rajpaul75.

You need a "Megger".

KB_KB_Y560060_PXL.jpg


http://www.megger.com/us/products/ProductDetails.php?ID=217&Description"
 
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Thanks with megger how to test a 3 phase AC motor.





dlgoff said:
Welcome to PF rajpaul75.

You need a "Megger".

KB_KB_Y560060_PXL.jpg


http://www.megger.com/us/products/ProductDetails.php?ID=217&Description"
 
Last edited by a moderator:
We don't know the specifics of your test.
 
Averagesupernova said:
We don't know the specifics of your test.

I want to test a lift ac motor, if you have sample data please explain how to test
 
There are many many many things about an electric motor to test. Which one do you want to test or do you even know? Do you want a single test to say "Yes this motor is good!"?
 
Averagesupernova said:
There are many many many things about an electric motor to test. Which one do you want to test or do you even know? Do you want a single test to say "Yes this motor is good!"?

I want to know how to do insulation test and continuity test on a 3phase motor.. If you have any website reference please guide me ..I am trying to do this first time for my practical purpose.
 
step 1: switch off the motors breaker, lock it out with your lock, tag.

step 2: check with a volt meter that all (phase to phase) and (phase to ground) readings are 0 volts.

step 3: depends on the test equipment you are going to use.

WARNING: Working with mains voltages can be lethal.
 
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