If I increase the output frequency on a given drive from 60Hz on the output to 120Hz, what can I expect as far as output-side transformer loss changes? The output voltage would remain the same. I am pretty sure winding losses will go up, but based on practical experience, by what factor? I...
On a 3-phase 4-wire system, is it necessary to run a disconnect on the neutral line when feeding a standard distribution bank of pole-mounted transformers? I can see how this could be a safety precaution, in the event of an adjacent phase-neutral fault while the bank in question is being...
I will briefly outline the situation regarding my question...
-3 Phase 3 wire supply, ~13400V
-1500KVA transformer, brand new, 13800/4160Y/2400, set on 13460V tap
-energized through a recloser (setup to operate as a switch on a three minute timer)... thus all three phases closed at the same time...
