K-13 rated transformer grounding electrode conductor

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fredw

New member
If you have a K-13 rated transformer that serves a 120/208V panelboard with a 200% rated neutral, does the grounding electrode conductor need to be increased 200%?
 

ron

Senior Member
Re: K-13 rated transformer grounding electrode conductor

Although an equipment grounding conductor is increased based on volt drop, it nor a GEC gets increased due to potential hamonic content.
 

dereckbc

Moderator
Staff member
Re: K-13 rated transformer grounding electrode conductor

No. A K rated transformer establishes a rating method to indicate thier ability for nonsinusodial load currents without exceeding thier tempature rise limits. The GEC and EGC's do not carry any load currents
 
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