Insulation problems
Insulation problems
(OP)
I have the following problem
a gearless mill drive motor
We have numerous problems with insulation. ie partial discharge.
The main problem I think is the derating factor at high altitudes.(insulation at high and cold altitudes over 2000 metres)
Could I please have suggestions around this
a gearless mill drive motor
We have numerous problems with insulation. ie partial discharge.
The main problem I think is the derating factor at high altitudes.(insulation at high and cold altitudes over 2000 metres)
Could I please have suggestions around this





RE: Insulation problems
What tests have you done to confirm partial discharges ? Usually, it is due to low quality coils.
RE: Insulation problems
RE: Insulation problems
Keith Cress
kcress - http://www.flaminsystems.com
RE: Insulation problems
I am with edison in wondering how you conclude you have a partial discharge problem? Testing? If so please share your results. And has it changed or always been there? Inspections? If so, what is the location of the partial discharge (slot exit, end turn inter-phase, etc) ? What is the voltage and horsepower of the machine? And what type insulation system (vpi or B-stage). And how old is the insulation system ?
=====================================
Eng-tips forums: The best place on the web for engineering discussions.