... method: Turbocharged-intercooled8) 400 / 230V AC, 50Hz , 0.8pF three-phase and four wires9) Frequency: <3%10) Frequency at stable state ... on. b) Operation display: i) Unit voltage, tri-phase load current and frequency display ii) Water temperature, oil pressure ... g) Set shock absorber 19) Optional Components:Engine protection module,parallel equipment,common base oil tank,electric governor,automatic ...