work sites, mountain and pasture as electric power source for lighting purpose, it can also he used as reserved power source for emergent case.The generators are of drip-poof with rotary field type and adopt harmonic excitation system, easy operation and maintenance.The generators are three-phase, four-wire type, adopting star connection with neutral point. The rated line voltage is 400V, phase voltage 230V, frequency 50Hz. power factor 0.8. We can provide 60Hz and the other voltage's generator according to the customer's request.