... motor, protector, gas-liquid separator, multi stages centrifugal pump, check valve, relief valve, motor flat cable, cable guard, power cable, tubing. Surface equipment ... various wells.(7)ESP adjust the frequency by pump output in which the lower Voltage & Amps are demanded, so it ... fluid periodicly or random according to coal powder & sand production in various well.(6)Main page on LCD: Voltage, Amps, ...