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#101887 - 12/22/03 11:48 AM grounding of transformers
GETELECTRIC Offline
Member

Registered: 10/22/03
Posts: 178
Loc: toronto canada
we have a set of drawings that does not show what size of grding for a 225 kva 600-120/208
transformer.our best guess is table 17 going with 3/0

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#101888 - 12/22/03 03:24 PM Re: grounding of transformers
crash Offline
Member

Registered: 10/21/03
Posts: 130
Loc: Calgary Canada
Getelectric: It sounds like you are looking for 10-204(2), and applying it to a delta/wye transformer. Table 17 and 3/0 would be the correct. However the last phrases and their reference to 4-022 confuse me. I believe the 4-022 reference would apply to a wye primary.

[This message has been edited by crash (edited 12-22-2003).]

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