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Re: A Big problem at The County Shop [Re: wire_twister] #172824 12/27/07 05:28 PM
Joined: Mar 2007
Posts: 49
ausador Offline
jdevlin he specifically said in his first post that the service was strictly 120/208volt 3 phase. Also a 600volt service would still not explain the 255volts seen at the fixtures. He is missing some element here and consequently so are we, hopefully he will let us know what it is.....

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Re: A Big problem at The County Shop [Re: ausador] #172827 12/27/07 07:32 PM
Joined: Apr 2007
Posts: 33
RDK Offline OP
Found the problem. The last guy who got fired installed a transformer up in the attic. Ill try to post some pix latter this week. THis was the same guy who installed a pannel over top of someone's crapper. Ill also post pix of that. Thanks to all. Now all the lights work

Re: A Big problem at The County Shop [Re: RDK] #172845 12/27/07 11:21 PM
Joined: Nov 2007
Posts: 763
KJay Offline
So then, the 28 lights were Metal Halide fixtures with a single, large VA, multi-circuit transformer?
Can’t say that I have ever seen a transformer like that before.

Re: A Big problem at The County Shop [Re: RDK] #172847 12/28/07 12:10 AM
Joined: Nov 2005
Posts: 141
Check Pilot Offline
I see a broken neutral. Start at the service FROM the meter IN the panel and measure the volts from each side to ground or the EGC - not the neutral. If it's anything but 120 volts - high, or low for that matter, the neutral is broken somewhere before the panel, - maybe the meter perhaps? Then measure the voltage in the panel from neutral to the ground or EGC connection. Voltage from neutral to ground of anything over about 2 volts indicates a busted neutral somewhere. Hope that helps you.

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