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feeder protection #69129
08/29/06 07:09 AM
08/29/06 07:09 AM
C
carranoelectric  Offline OP
Junior Member
Joined: Aug 2006
Posts: 4
stratford ct
Is the secondary feeder from a 75 kva xfrm protected from the primary breaker? I have a 100 amp 480 v breaker on the primary with a 200 amp 208 v secodary to a panel. Do I need a 200 amp main or can I use main lug and have the 100 amp breaker protect the 200 amp feeder?

[This message has been edited by carranoelectric (edited 08-29-2006).]

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Re: feeder protection #69130
08/29/06 07:27 AM
08/29/06 07:27 AM
R
Ron  Offline
Member
Joined: Mar 2002
Posts: 582
White Plains, NY
NEC 2002 240.21(C)(1) says you need a breaker on the secondary within a limited distance.


Ron

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