How to test 3-Phase motor winding insulation

MEGGER Meter # Fluke insulation multimeter
3-Phase motor winding insulation test
Fluke 1587 FC insulation multimeter
Check motor winding insulation is good or bad with help of meter.
Let me know if you want to know on any other topic let me know in the comments.
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[@mcdonnellsinc]

can you please tell the 3.1k viewers the name of your business, so we can avoid having you "troubleshoot" and misdiagnose our equipment 😅

[@DallasAutoDiag]

As far as i know a 3 phase motor windings are not suppose to have any continuity between any given 2 phases. just like between any given phase and the motor case. in your testing when there was 0 resistance between 2 phases on motor 1 you said "this is good" which is actually not. and the opposite happened on motor 2. in addition, you were suppose to hole the test button for a minimum of 60 seconds to see if there is any drop in the resistance. in short, Hi resistance=good, Low resistance or a 0v reading=bad.

[@LifeOfEngineering-dm7fk]

Thnak you so much for your response I will make sure that I will provided you right information but Thank you.

[@bobbauvian7700]

if phase wires are not connected in a 3 ph motor, how will the motor run then? I think may be we all need to learn more.....

[@Josh-px6xb]

3 phase motor windings WILL have a resistance reading between the windings . If it didn’t that mean it would be a bad motor. All the windings are tied together

[@bobbauvian7700]

Oh OK I got it. not sure if I am correct. but in the motor electric box, where all the wires are. if everything is disconnected then the windings are not connected. correct?

[@Josh-px6xb]

@@bobbauvian7700 dual voltage motors won’t be connected for an example . (If you have a 9 lead motor)

[@amandeepchahal007]

Good job 👍

[@richardlang2185]

This video is incorrect how to use this FLUKE tester and incorrect how to test motor for Insulation Resistance. Insulation Resistance on motor is done by Polarisation Index PI what this FLUKE tester provides.

[@argelgus]

No No No