The megger readings for the cable are normally around 1-1.5 megohms when submersed in water, otherwise it is generally infinite.
The capacitors are 3-60uF in parallel for 180uF in series with the aux. winding.
I agree the cable cap losses have nothing to do with the volt-current phase angle...
aolalde,
Thanks for the reply, if I understand you correctly you are saying the cap losses are cumulative. The more conductors the greater the losses. That does make sense. Although, one thing I did not mention is that we also have 3 phase units out there that operate on runs longer than 400'...
We manufacture aeration pumps/fountains. Our latest product line are large units, which use 7.5 & 10HP motors. Because of the weight of the units, about 200-250lbs., the capacitors for the single phase permanent split-capacitor (PSC) motor models are mounted on shore in the control cabinet. The...
We have a customer from Singapore requesting the "earth leakage current" of the machinery that we manufacture. We are in the U.S. and we understand that there is a small leakage current to ground, but have never had a customer be concerned about it. Can anyone help me with this...
What is the line to neutral mathematical relationship in a delta connected transformer secondary? As in, why is the "wild leg" voltage 208 volts, when the line to line voltage is 240 volts?
What is the line to neutral mathematical relationship in a delta connected transformer secondary? As in, why is the "wild leg" voltage 208 volts, when the line to line voltage is 240 volts?
