Description
STC series three phase AC synchrous alternators
STC series generators are to be used in town , the countryside , work sites , Mountain and pasture lands as a electric power source for lighting purpose , It can also be used as a reserved power Source for emergent case . The generators are of drip • poof 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 voltage's generator according to necessary . They can be coupled with a prime mover directly or through V - belt making right or reverse continuous rotation at the rated speed . when the revolution slip of prime mover is 3 % and load varies in the range of 0 -1 00 % cosΦ1.0-0.8 they give good constant voltage. After sudden change ( increase or decrease ) of load . the generators constant voltage . will soon return to their normal working state , without any starting devices the generator can directly start an unloaded squirrel cage Induction motor.
OPERATING CONDITIONS:
Under the following environment,The generator could be continous and rated running:
Above sea level:Not exceed 1000m.
Cooling air temperature:258~313k(-15℃~40℃）
Rated air damping:not exceed 90%
