ST series generators are mainly designed to serve as power generating unit of small capacity which supply electricity for lighting purpose in ships as well as for household electric devices used in towns or villages.The construction of the generators is of drip-proof, salient pole rotating field self-excitaltion and constant voltage type. The altemator inside is used with high quality electric magnetic and electrical materials.Stator insulation is of Class E (or B). rotor insulation is of Class B. These generators are excellent in appearanee. they are consolidate in construction and easy to maintain. Dimensions are adopted lEC standard, they are suitable for Australia, Europe, America and other countries if the end covers are model B.The alternators are of harmonic wave self-ex- citation constant voltage system and automatic voltage control excitation constant voltage system, both of them have good dynamic characteristic performance, convenient and reliable in operation.

STC generators are to be used in town, the countryside, worksites,mountain and pasture lands as a electric power source for lighting purpose, lt 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 atar connection with neutral point. The rated line voltage is 400V. phase voltage 230V. frequency50Hz.power factor0.8(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 rot ati on at the rated speed, when the revolution slip of prime mover is 3% and load varies in the range of 0 100% cos 1.0-0.8 they give food 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 generator can directly start an unloaded squirrel cage induction motor.

SD / SDC series generating and welding dual-use generators are suitable to be driven by an internal combustion engine They can beused as mobile or stable power supply unit, which is suitable for using in town、countryside, boats, workshops for lighting or welding purpose。This series generators can serve as lighting or as welding individually,further more, they can serve both as welding and as illumination simultaneously. IP21,Insulation class B