Aug 01 2011 05:52 PM 39912 18 3 Phase AC Supply shweta tripathi Why 440volts instead of 660volts in 3 phases of supply system? Asim Bilal Jun 22nd, 2017 It is neither 440v nor 660v, it is 381v by formula 220v*underroot 3=381v Sankareshwaran V Mar 13th, 2017 Their should always be a return conductor to close the circuit, so in 3phase one of the phase act as a return conductor. Answer Question Select Best Answer
Aug 01 2011 05:52 PM 39912 18 3 Phase AC Supply shweta tripathi Why 440volts instead of 660volts in 3 phases of supply system? Asim Bilal Jun 22nd, 2017 It is neither 440v nor 660v, it is 381v by formula 220v*underroot 3=381v Sankareshwaran V Mar 13th, 2017 Their should always be a return conductor to close the circuit, so in 3phase one of the phase act as a return conductor. Answer Question Select Best Answer
Sankareshwaran V Mar 13th, 2017 Their should always be a return conductor to close the circuit, so in 3phase one of the phase act as a return conductor.
