... from 10.8kw to 320kw !. brushless three phase alternator TFW series, steel frame, Excellent silicon steel chip, import ball bearings ... ,self-exciting, AVR auto control !Rated Voltage : 400V,50HZ. Speed : 50HZ = ... , 60HZ = 1800 RPM.Power Factor =0.8 Product DescriptionTFW series brushless alternator.50Hz,class H,IP23,voltage adjust small than ...