I saw a video on YT where they showed 2 heaters each one drew 8.3 amps one was on red phase second was on yellow phase then the guy showed the neutral current as 8.3 amps I would of thought it would of been 0 as the blue phase was completely unloaded whilst I'm not doubting the guys results im a little surprised is all
If all THREE phases are equally loaded, then the neutral current will be zero in theory. Manufacturing tolerances and slightly differing voltages on each phase may produce a very small neutral current.
If only TWO phases of a three phase four wire supply are equally loaded, then the neutral current will be the same as the phase current, in theory, or very nearly the same in practice.
If all THREE phases are equally loaded, then the neutral current will be zero in theory. Manufacturing tolerances and slightly differing voltages on each phase may produce a very small neutral current.
If only TWO phases of a three phase four wire supply are equally loaded, then the neutral current will be the same as the phase current, in theory, or very nearly the same in practice.
