20-220kw diesel generator 1, OEM of cummins ... function Specifications of Cummins diesel generatorModel: SFJ20-220Prime Power: 20-220KWStandby Power: 22-240KWEngine Brand: CumminsAlternator Brand: Stamford/ ... or high voltage, low or high frequency, over current, over or low speed, low or over battery ... low or high voltage, low or high frequency, over current, over or low speed, low or over battery ...