evapcoil
09-02-2014, 03:32 PM
111631116411165
Hello Colleagues
I am working on Carrier 19XR equipped with medium voltage motors (6.6KV).
Unfortunately, on 12 machines installed 5 of them have already failed because of grounding of the elctrical motors, and recently We opened other three machines and all three are showing signs of Corona phenomen on their stators in different degrees of severity.
See attached pictures for reference.
Has anybody dealt with this problem before? If so , what was the cause of it and how did you solve it?
Thank you all for any feedback and/or suggestion.
Hello Colleagues
I am working on Carrier 19XR equipped with medium voltage motors (6.6KV).
Unfortunately, on 12 machines installed 5 of them have already failed because of grounding of the elctrical motors, and recently We opened other three machines and all three are showing signs of Corona phenomen on their stators in different degrees of severity.
See attached pictures for reference.
Has anybody dealt with this problem before? If so , what was the cause of it and how did you solve it?
Thank you all for any feedback and/or suggestion.