Neutral CT connection (N) vs Ground CT (G)
Neutral CT connection (N) vs Ground CT (G)
(OP)
Guys, my understanding is if we have one CT around all 3 phases (to measure the residue), ANSI calls this as Zero sequence or G(round) CT and if we have one CT around neutral wire, ANSI calls it N(eutral) CT.
If the above statement is correct, what are the applications of each?
If the above statement is correct, what are the applications of each?






RE: Neutral CT connection (N) vs Ground CT (G)
a zero sequence CT would be used around the 3 phases in a feeder circuit.
a neutral CT would be used on the neutral only, for example the neutral leg of a transformer, or a generator.
hopefully others can shed more light on this?
RE: Neutral CT connection (N) vs Ground CT (G)
When there are line to neutral loads, you don't want normal neutral current tripping your ground fault protection.
Bill
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"Why not the best?"
Jimmy Carter
RE: Neutral CT connection (N) vs Ground CT (G)
Considering any imbalance current component (either from imbalance load or fault) goes to neutral wire, how putting 4 wire inside the CT will work?
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RE: Neutral CT connection (N) vs Ground CT (G)
You may be confusing the neutral conductor with the grounding conductor, Although these are generally connected at the transformer or elsewhere, they serve different functions and carry current under different conditions.
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: Neutral CT connection (N) vs Ground CT (G)
RE: Neutral CT connection (N) vs Ground CT (G)
RE: Neutral CT connection (N) vs Ground CT (G)
RE: Neutral CT connection (N) vs Ground CT (G)