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I've got a 480 volt diesel generator that my employer wants to use as an emergency back up for some lighting panels, but it does not have a neutral. Is there a way to create a neutral for this generator?
 

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Jw429ibew said:
I've got a 480 volt diesel generator that my employer wants to use as an emergency back up for some lighting panels, but it does not have a neutral. Is there a way to create a neutral for this generator?
It's funny you post this. I was just talking to a friend of mine, and we were discussing a transformer without a neutral. He was trying to convince me that it was legal to use the steel of the building. Anyone ever herd of this?
 

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Mr. Troubleshooter said:
It's funny you post this. I was just talking to a friend of mine, and we were discussing a transformer without a neutral. He was trying to convince me that it was legal to use the steel of the building. Anyone ever herd of this?
Yeah, see it all the time. But that doesn't make it right.
 

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So if this isnt correct, then how do we create a neutral in this situation?
Use a properly sized neutral conductor?

The building steel by itself isn't "creating" anything. For it to operate as a neutral, it must be connected to the neutral/grounded point of the transformer. So if that point already exists, then just hook a wire to it.

-John
 
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