What is the zero seq. impedance of a cable that has a ground fault to a a zero impedance grd plane?
In other words, if a cable is in a plant with a very good ground mat so that a ground fault has a zero impedance return path what is the value of a the cable zero sequence impedance? Is it...
Comparing the voltage spikes produced with interruption of a medimum voltage vacuum bottle with those produce by an air blast breaker. Are they the same in new vacuum gear? What about in older vacuum gear? I know that the early ventage vacuum gear had surge capacitors but I have gotten...
