... in quality and performance Competitive price ST/STC Series brush type alternator1)STC series generators are used in town, countryside, ... source.2)The generators are drip-proof with rotary field type, IP23,Insulation Class:B or F, adopting harmonic excitation ... operation and maintenance. 3)The generators are three-phase, four-wire type, adopting star connection with neutral point,. The rated line ...