aborg wrote:
> This chassis definitely is hot, it bites pretty good.
> Using
> a piece wire touching from chassis to another contact
> chassis point yields a pretty good spark.
Here is what I suggest:
1) Completely disconnect the transformer.
2) Check all leads with with an ohmmeter to ground.
3) If the readings are not infinite, you have a problem. If they are,
4) Check all leads with a 'megger' (megohmmeter) to ground (I think I'm showing
my age, but these must still be around). This is a device that measures
resistance with a very high voltage low current source (several KV). It will
catch poor insulation. You probably don't have one lying around.
There is a lot of capacity to ground in a large transformer and I wouldn't be
surprised if you can measure some apparent leakage with a high impedance DVM,
and even get a spark. But given the danger inherent in the situation, it would
be best to have it evaluated by an experienced person with the right equipment.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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