STC Series Three Phase AC Synchronous Generator The generators are to be used in town, the countryside, worksites, mountain districts and pasture lands as an electric source for power supply or lighting purpose. It can also be used as a reserved power source for emergent case. The generators are of drip-proof with rotary field type and with the adoption of harmonic excitation system , that allow your easy operation and simple maintenance. The generators are of three-phase four-wire type. Making use of star connection with neutral point. The rated line voltage is 400V, phase voltage 230V frequency 50Hz power factor 0.8(lag). It can provide 60Hz and the other voltages generator according to necessary. They can be coupled with a prime mover directly or through v-belt. making right or reverse continuous relation at the rated speed. When the revolution slip of prime mover is 3% and load varies in the range between 0 to 100%, power factor between 1.0 to 0.8, they give good constant voltage. After sudden change(increase or decrease) of load, the generators will soon return to their normal working state. Without any starting devices the generators can directly start an unloaded induction motor. Technical Data Model Output(KVA KW) Current(A ) Pole Synchronous speed r.p.m STC-5-2 6.3 5 9 2 3000 STC-3 3 .8 3 5.4 4 1500 STC-5 6.3 5 9 STC-7.5 9.4 7.5 13.5 STC-10 12.5 10 18.1 STC-12 15 12 21.7 STC-15 18.8 15 27.1 STC-20 25 20 36.1 STC-30 37.5 30 54.1 STC-40 50 40 72.2 STC-50 62.5 50 90.2