The ST series generators are mainly designed to serve as power generating unit of small capacity which supply electricity devices used in towns or villages. The construction of the generators is drip-proof,salient pole rotating field self- excitation and constant voltage type.High quality electric magnetic and electrical materials are used in the alternator.Stator insulation is of class E(or B).Rotor insulation is of class B.
    The alternators are of harmonic wave self- excitation constant voltage system and automatic voltage control excitation constant voltage system,both of them have excellent dynamic performance, convenient and reliable in operation. These generators are excellent in appearance and easy to maintain.Dimensions are adopted according to I. E.C standards.
The voltage of the alternator is 230V or 115V, the frequency is 50Hz.It's operation mode is of continuous duty.It can provide 60Hz and the other voltage's generator according to necessary.
    The alternator can be coupled with a prime mover directly or through a V-belt,with 5%change of speed of the prime mover under load variation of 0-100%,at a voltage of 230V or 115V,50Hz or 60Hz to get a satisfactory constant-voltage performance.