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Re: REsolved: ...And then there was silence.
Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>
At 11:10 PM 5/15/2002 -0500, you wrote:
>I found the problem early this morning... several things had gone wrong with
>the coil. I'm not sure if it was all at once or separate incidents.
>Problem #1) Something in the protection circuit faulted... not sure what.
>(based on Terry's NST filter)
>Problem #2) Either when the protection faulted or shortly thereafter, my
>NST's both went kaput.
>Problem #3) The reason for the fault was that our stockroom clerk ordered
>the wrong MOV's. One (or more) of them faulted causing the problems.
If the MOVs were "wrong" they probably quickly overheated and shorted out.
I would not normally think that would allow the NST to get damaged but
rather just protect it "more". Test the bare NST to be sure it is really
damaged and not just being shorted by the failed filter MOVs.