... canopy is optional 8) 230 / 400V AC, 50Hz , 0.8pF three-phase and four wires alternating current output9) Frequency: <3%10) Frequency ... of gen sets: a) Engine: Ricardo series diesel engine b) Engine type: water-cooled, in line four-stoke, Humit cylinde liner ... over speed, over load and over current b) Operation display: i) Unit voltage, tri-phase load current and frequency display ii) Water ...