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Re: Ground current
Paul,
Did you disconnect the pig outputs hv outputs?
Is power to the pig on a double throw switch disconnecting both hot and
neutral completely?
You might want to completely disconnect both mains from the pig and check
current between nuetral and ground of your house wiring. It isnt uncommon to
have some current riding on ground, and it isn't wanted. You may have a
highly resistive connection in the house wiring going bad (alluminum to
copper most likely - has been the cause of many house fires). Also, make
sure your current meter is working properly.
Bart
Tesla List wrote:
> Original Poster: "Paul Marshall" <klugmann-at-hotmail-dot-com>
>
> I have a question about ground current. I have 25 KVA pig, line neutral
> is connected to the case and the case is connected to ground. Last night
> I pulled out my handy meter and checked for current to ground. I found
> that I had a 3 amp current in the ground lead. I turned off the power to
> the pig and checked again, 3 amps ! I turned off the power at the mains
> still 3 amps. Next I checked to see what the voltage was. It wasn't
> measurable < 1 volt. Can anyone tell me what is going on ? Also there is
> no sign of a spark between the ground lead and the ground terminal.
>
> paul m
>
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