Arc on transformer bank
Arc on transformer bank
(OP)
Meterman and ape. changed a 480 volt meter at a water well. It is a 3 Ø 240/480 center grounded delta on the low side. High side is 14,400. Lineman grounded the high side before opening the cutouts. My question is when they closed the fuses in, they closed the 2 outside fuses in first. The center transformer was the one that was grounded, x2. When they shoved the center in, they missed and the barrel was swinging drawing a 3 to 4ft. arc. No load on this, as breakers were off. Why such a big arc? Thank you, Bob






RE: Arc on transformer bank
Bill
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"Why not the best?"
Jimmy Carter
RE: Arc on transformer bank
RE: Arc on transformer bank
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: Arc on transformer bank