... manual or auto, synchronization 3, ISO Standard Configuration of Natural Gas Generator Set:Engine: Ruichang (China brand) 1,water cooling , 4 ... single bearing,4pole and self excited brushless. 2,insulation --H class,Protection -- IP22 (IP23 in marine) 3,AVR(auto ... panel,Remote control panel,ATS(Auto transfer switch) Natural Gas Generator Set Performence:1) Water cooled inside --closed circle water ...