... base-fuel tank and low level fuel exhaust pump, to start up in emergency.3.7 Fully water cooled structure3.8 Controller ... .9 Speed regulation system with soft reset and soft speeded-up function3.10 Maintenance-free battery with intelligent changer.3.11 ... , genset controller, power factor regulator, fuel solenoid, charger for engine start battery, actuator, speed controller, load sharing panel and so on ...