... test equipment 4)Low operation cost specification of natural gas generator: Gas Generator - 50 HZ AT 1500/1000 RPMENGINE Alternator ... control box with Auto controller,ECU and spark system, Gas and Air Mixer,Radiator Fan,Fire protection system,Air ... meter.2. Control partsStart/stop key switch, start button, emergency stop button, voltage regulationresistance, speed regulation resistance. Voltage phase ...