Recent content by spider2127

sorry yes one leg and ground. Ok i have a 3phase 440v/220v tranny that when connected to mulitple switchboards i get a reading of 155v red to ground,4v white to ground and 153v blue to ground. When i disconnect main switchboard and have nothing connected to the tranny my voltages from each leg...

Hi all, I have a 90kva 3 phase 440volt/220volt stepdown transformer. When i test on no load ie secondary not connected to anything but the power is on, i get 220v between phases but to Earth or ground i get 1st phase 150volts 2nd phase 104volts 3rd phase 150volts Does this mean my...