... 2. carbon brush 3.AC ,4 poles, power :3kw-64kw STC series three phase alternatorThree phase ... as lighting as well as to be reserved emergency power source. Three phase, four wire type, adopting star ... is 400V, phase voltage 230V, frequency 50Hz, power factor 0.8 lag. We can provide 60Hz ... , Rotary field, Harmonic excitation, IP21, Class B, Power Factor COS0.8, Chinese bearings, Output range from 3kW ...