Ramasubramanian Posted December 22, 2009 Report Share Posted December 22, 2009 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 Link to comment Share on other sites More sharing options...
AB2005 Posted December 23, 2009 Report Share Posted December 23, 2009 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". Link to comment Share on other sites More sharing options...
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