| Title | By | Posted On |
| MOV Arrestor failure |
naferna |
11/21/2005 |
Looking for anyone with experience scanning MOV arrestors (in spetial 245 KV). I would like to know how a failure i determinated in this kind of arrestor. Is it a hot spot or is it like a heat distribution through the whole block?
I really apprecite any help
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| Re:MOV Arrestor failure |
MAG |
11/21/2005 |
| Do you have I/R images from different angle of views? |
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| Re:MOV Arrestor failure |
naferna |
11/25/2005 |
| Actually, I have some pictures (jpg) from a laboratory test, but is this the only way that a failure is showed? and what about when the arrestor is working in overvoltage condition? How can i differenciate a normal heating due to the current operation from a heating produced by a failure? |
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| Re:MOV Arrestor failure |
TDLIR |
11/25/2005 |
check out a 2004 post on this same subject.
http://www.infraredtraining.com/community/boards/thread/1317/
You will also some some images of failed arrestors during operation.
Regards,
Sonny James
http://www.tdlir.com |
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