400 Amp 3 phase service

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kwired

Electron manager
Location
NE Nebraska
Well, if I went w/ 3 phase are you saying stick with 200A?
With 200 amp @ 208 volt 3 phase you can have a load of 72 KVA.

If only single phase @ 208 volt you only have 41.6 KVA available plus an unbalanced transformer which is more of a problem for POCO than customer.
 

kbsparky

Senior Member
Location
Delmarva, USA
BY Using only 2 out of 3 available phases, you are doing your client a big disservice:

Their demand charges on their energy bill may be higher, since your total loads will be limited to 2 of the incoming lines. The total load on any one line will be higher, all other things being equal. This is one reason why it is critical to properly balance your 3 phase system to minimize the extra demand charges applied by the POCO.

Save a buck today, waste hundreds, or even thousands tomorrow!
 

mivey

Senior Member
BY Using only 2 out of 3 available phases, you are doing your client a big disservice:

Their demand charges on their energy bill may be higher, since your total loads will be limited to 2 of the incoming lines. The total load on any one line will be higher, all other things being equal. This is one reason why it is critical to properly balance your 3 phase system to minimize the extra demand charges applied by the POCO.

Save a buck today, waste hundreds, or even thousands tomorrow!
Please elaborate on the extra demand charges. Balancing the loads won't make a huge difference in demand so are you talking about transformer kVA charges? Many POCOs only charge for metered demand.
 
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