tmcgett
Electrical
- Jan 3, 2004
- 13
I have been searching the web for some "basic" guide lines to follow on doing a insulation resistance test on motors.
I seem to be getting inconsistent procedures on test voltage range and in particularly "lead placement".
For insistence:
I have read test voltage range <1000v = 500vdc range and also read test voltage range is set at 2x motor voltage.
Lead placement is all over the place from; to ground, across winding, connect the motor leads, I'm confused!
I am looking for some old school, rule of thumb advice on testing a WRIM, 3 phase, Wye - 480v, 76kw (in the field)
Regards
I seem to be getting inconsistent procedures on test voltage range and in particularly "lead placement".
For insistence:
I have read test voltage range <1000v = 500vdc range and also read test voltage range is set at 2x motor voltage.
Lead placement is all over the place from; to ground, across winding, connect the motor leads, I'm confused!
I am looking for some old school, rule of thumb advice on testing a WRIM, 3 phase, Wye - 480v, 76kw (in the field)
Regards