Please can i tie-in a backup generator (2500kva) to a 3000A breaker from a 3000A switchgear? The switchgear also has about 4 other panels tied to it (2x800A, 1x600A and 1x400A). The generator is acting as a backup to the entire system if there is failure of the normal power. Will this be according to NEC code?
Backup Generator Circuit Breaker size
- Thread starter Temmy85
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- Bremerton, Washington
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- Master Electrician
The NEC rules for a backup emergency power source are in section 700.3 F I would suggest you review those.
hillbilly1
Senior Member
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- North Georgia mountains
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- Owner/electrical contractor
Is it a manual transferswitch? Or automatic?
its automatic
yes
texie
Senior Member
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- Fort Collins, Colorado
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- Electrician, Contractor, Inspector
A lot more info is need here. One question is this genset 2500 KVA or 2500KW? A 2500 KW @.8 PF would sound more likely which would make the KVA 3125. Your amp calcs have to be based on the KVA.
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