Transformers

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Harry Rush

New User
Location
Buffalo
Occupation
Electrical
Is it permitted to have two separate load factors on one transformer? Can you come off the secondary side of a transformer to a disconnect with 3/0 and come out the same transformer secondary to a panel with a main breaker with 1/0?
 

augie47

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Location
Tennessee
Occupation
State Electrical Inspector (Retired)
Yes. You can feed up to six panels/disconnects from the transformer secondary as long as you provide overcurrent protection as prescribed.
(See Note 2 to 450.3(B))
 
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