Discuss 2 phase dc to ac converter in a 3 phase house in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net

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savimagc

I am about to buy a Pv Solar system for my house(Grid tied system ), the system is a 10Kwatt system, the company that is going to install it, is quoting me a 2 phase DC converter but my house has a 3 phase transformer, they said that there is no problem, but i am not so sure, any help will we appreciated.
 
not balancing the system properly across the 3 phases is bad practice, and pretty daft as 3 phase inverters cost no more than 2 phase.

Definitely get a second quote and see what they say - from a company that knows what they're doing preferably.
 
i agree about about getting a 3 phase inverter. but correct me if i am wrong, but as its a pv system its a negative load so in theory will not be creating an imbalance across the phases.
 
i agree about about getting a 3 phase inverter. but correct me if i am wrong, but as its a pv system its a negative load so in theory will not be creating an imbalance across the phases.
of course it will. Think how balance works, it has just the same impact either way round, actually it could have more impact if it involved 1 phase exporting backwards through the transformer while other phases were importing.
 
of course it will. Think how balance works, it has just the same impact either way round, actually it could have more impact if it involved 1 phase exporting backwards through the transformer while other phases were importing.

didn't think of that, I've never really thought about it as I would always use a 3-phase inverter in this situation.
 

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