For single phase(phase to neutral) having potential difference 230.in three phase(phase to phase)we have 440V HOW...?



For single phase(phase to neutral) having potential difference 230.in three phase(phase to phase)we ..

Answer / parvez alam

In 440 volts, 3-phase star connected system Vph=Vl/1.732 which is equals to 440/1.732=250V. So Vph is voltage between phase and neutral and Vl is line voltage between two phases. Also power in 3 phase system is 1.732VlIl x power factor.Also Il=Iph

But in delta connected system it is just the opposite of 3 phase system, so we have Vph=Vl because there is no neutral in delta system.Also Iph = Il/1.732 

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