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A single phase supply will be 230 /22 / 240 V Ac. And when three phase is connected we say it is 440 /415 etc., Some time phase to phase 230V or 440. How you say this. Please explain


Hello Ramasubramanian


Your question is not clear.

If phase to phase voltage is say 415 then voltage at phase to neutral would be 415/rout3 (1.73) which is 240V. Apply this formula with any value you can calculate the voltage.


"Don't assume any thing, always check/ask and clear yourself".

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