powerelectronic
Member
Hi All
here is the situation:
///3 wires
transformer feeds electrical panel, having power system of 3 phases, 3 wires, neutral to ground at delt-star transformer.
-do i need run the neutral wire from transformer to the equipment although 3 wires only system is used at the equipmet level.
-if neutral wire is omitted, what if there is ground fault triggered at the point of equipment?
////4 wires
what if power system is 3 ph, 4 wire, can i omit the ground wire, or use transformer neutral as ground at equipment?
what NEC section relates to the applicaiton?
i am puzzled, any thought will help :arrow:
here is the situation:
///3 wires
transformer feeds electrical panel, having power system of 3 phases, 3 wires, neutral to ground at delt-star transformer.
-do i need run the neutral wire from transformer to the equipment although 3 wires only system is used at the equipmet level.
-if neutral wire is omitted, what if there is ground fault triggered at the point of equipment?
////4 wires
what if power system is 3 ph, 4 wire, can i omit the ground wire, or use transformer neutral as ground at equipment?
what NEC section relates to the applicaiton?
i am puzzled, any thought will help :arrow: