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Forums › Home Workshop DIY › 2 Phase power delivery to homes in NZ. 120-degree or 180-degree phase rotation?
billgates

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#302040 24-Oct-2022 16:29
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Hi folks,

 

I am trying to find out the answer for a new Solar PV setup that the Solar inverter company has asked me. Does anyone know if your home has 2-Phase setup in NZ, is it 120-degree or 180-degree phase rotation? The monitoring gear they have works with 120-degree phase rotation but not 180-degree phase rotation. 

 

 




Do whatever you want to do man.

  

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Mehrts
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  #2987353 24-Oct-2022 16:36
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Each phase is 120 degrees from each other due to being generated and transmitted in three phases.

Doesn't matter if you have two or three phases that are in use, they'll be 120 degrees apart from each other unless you have something specific on your property that would change that, but you'd already know if that was the case.

Happy to be corrected, but I haven't seen 180 degree phase relationships in NZ before.

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