Engine and alternator
Gas is introduced into the engine after being mixed with air in a gas carburettor.
Engine speed is controlled by-means of a Barber-Colman electronic engine speed regulator, which controls simultaneously a gas valve and an air valve. The engine speed is kept constant at 1500 rpm.
The system is equipped with an International Harvester gas engine (compression ratio 9.5 : 1), with a cylinder volume of 9.9 dm3.
The alternator is a short-circuit proof, self-excited internal pole machine in synchronous construction with the following specifications:
Power output: 40 kVA Power factor: cos phi 0.8 Voltage: 380/220 V
Frequency: 50 Hz
The system is able to follow a step load change of 20 kVA with constancy of + 5 percent. The alternator is equipped with a switchboard containing:
— 3 ampere meters -1 voltmeter
-1 frequency meter
— fan control button
— ignition button
— start-up safety switch
— power socket CEE (5 pole) and power socket DIN 49462