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Neutral in Panelboard

Neutral in Panelboard

Neutral in Panelboard

(OP)
I have a three phase 4 wire panelboard (3-phase + neutral). This panelboard is about 150 feet from the transformer.

Is it required that the neutral wire has to come directly from the Y point of the transformer? Or can use the ground wire near the panelboard as a neutral?
 

RE: Neutral in Panelboard

The neutral must come directly from the transformer.  You can never use a ground connection as a neutral.  Before you ask, the 4-wire service coming direct from the utility is a special case.  

This is very basic stuff.   Consult the NEC Handbook.  



 

David Castor
www.cvoes.com

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