480Y/277V to 240V Open Delta Transformer

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baserunner4

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CA
Hello,

Is it possible to have a 480Y/277V to 240V Open Delta Transformer. Is this a common practice? I'm looking into putting solar on a small building. The main building disconnect is 400A with a 240 open delta service.
 
baserunner4 said:
Hello,

Is it possible to have a 480Y/277V to 240V Open Delta Transformer. Is this a common practice? I'm looking into putting solar on a small building. The main building disconnect is 400A with a 240 open delta service.
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I think it is the power company's problem - not sure if they will want to upgrade their bank to closed delta. They will let you know when u go through the interconnect process.
 
I agree with electrofelon, ask the utility. But for a small solar system, you can probably just put it on the 120/240 portion of the service. (There's a high leg, right?)
 
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