... used as reserved power source for emergency.The series generators are of drip-poof with rotary field ... ,easy operation and maintenance.The generators are ther-phase,four-wire type,adopted star connection with neutral ... point,The rated line voltage is 400V,phase voltage 230V,frequency 50Hz,power factor 0.8( ... 240.81500STC-505062.540090.240.81500 STC SERIES THREE-PHASE A.C. SYNCHRONOUS GENERATOR