David writes: > AIUI in the USA for residential 120/240V single-phase three-wire service > drops, electrical utilities either run all three phases along the > distribution line or they run two phases. Running one phase and a neutral > instead of two phases would reduce the power by the square root of 3
Here in rural Wisconsin the 7200V distribution line leaves the substation as three phases and a grounded neutral. This eventually branches out into three single phase lines consisting of a phase and a grounded neutral. The pole pigs are connected phase to neutral. -- John Hasler j...@sugarbit.com Elmwood, WI USA
