... 3),50/60hz 4),water cooling 5),1500hours warranty Perkins Open Generator Specifications: 1) Output range: 24kW (30kVA) - 112kW (140kVA)2) Engine ... return time: d3s13) Voltage deviation at stable state: d±1%14) Voltage deviation at instantaneous state: d+20%15) Voltage ... configuration of gensets: a) Engine: Perkins diesel engine b) Engine type: water-cooled, in line four-stoke, dry cylinder liner, ...