Transformer bonding

[scnkapc]

75kva 480/277 to 208/120. Do you bond XO to the frame?

 

[ADub]

75kva 480/277 to 208/120. Do you bond XO to the frame?

Depends. Maybe. You can. But you don't have to.


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[rlundsrud]

If you terminate the GEC in the transformer, then yes. You can also bond it at the first disconnect if you bring the GEC there instead.

 

[augie47]

 

[iwire]

Depends. Maybe. You can. But you don't have to.


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Can you point out an installation of a 480-208Y/120 transformer that does not require bonding the XO?

 

[ADub]

Can you point out an installation of a 480-208Y/120 transformer that does not require bonding the XO?

He said "to the frame" implying the frame of the transformer. Of course xo is bonded but that wasn't the question now was it


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