We had a ground fault indicator light come on in one of our substaions recently.After troubleshooting we found out that a 480v 3phase motor was wired wrong,OOPS!One of the phase wires was terminated to ground at the motor and the EGC was hooked up to one of the t-leads of the motor.My question...
WE have a problem with water pressure at our plant.The pressure ranges from 70psi to 40psi and often there is a significant enough change in pressure to shake the water lines.The booster pump we have is driven by constant speed motor at 1750rpm which we would like to be able to control the speed...
