3 wire or 4 wire?
3 wire or 4 wire?
(OP)
Could anybody tell me in 3-phase power when I would use a "3ph/4w/Ground" setup rather than a "3ph/3w/Ground" setup. I am a bit confused as to which I use in a given situation. Thank you,
Jason Self
Jason Self






RE: 3 wire or 4 wire?
If the single phase loads is a very small part of the larger 3 phase loads, you may wish to use a small 3ph, 3w to 3ph 4W transfomer to feed single phase loads and keep the majority of the system 3 phase, 3W.
RE: 3 wire or 4 wire?
3ph/4w/ground is used for general or mixed loads. Also, the system grounding methods should be noticed since 3ph/3w/ground can be ungrounded.
RE: 3 wire or 4 wire?
RE: 3 wire or 4 wire?