mains - Why is the three-phase voltage 440V, if single-phase alone is 230V? - Electrical Engineering Stack Exchange
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Single-Phase
![why the two out of phases is called single phase ?? [Text] - PLCS.net - Interactive Q & A](http://www.plctalk.net/qanda/uploads/SineWaves.JPG "why the two out of phases is called single phase ?? [Text] - PLCS.net - Interactive Q & A")
why the two out of phases is called single phase ?? [Text] - PLCS.net - Interactive Q & A
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Single-Phase
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mains - Why is the three-phase voltage 440V, if single-phase alone is 230V? - Electrical Engineering Stack Exchange
