ST single-phase A.C. synchronous generators is mainly suited to use in the lighting of small shipping and household electricity in town and country.

    Generator is drip-proof and salient poles rotating magnetic field self-excited constant voltage type. Internal of generator is made from quality electromagnetism and electrical materials. Insulation class of stator is E (or B). Insulation class of rotor is B. Beauty outline, sturdy construction, durable and easy to maintain. Installation size conforms to the International Electrotechnical Commission (IEC) standard. If use the B type end cover, it's can meet to the requirements of Australia's and Western's. Generator uses two field systems. One is harmonic excitation constant voltage system, the other is automatic control excitation constant voltage system. It has optimum energy performance, convenient, reliable and durable to use.

STC series 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 this generator is of drip-proof, salient pole rotating field self-excitation and constant voltage type. The alternator inside is made of high quality electric magnet and electric materials. Stator insulation is of Class F (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 which have excellent dynamic characteristic performance, convenient and reliable operation. The voltage of the alternator is 240V or 120V if necessary, the frequency is 50Hz or 60Hz. Its operation mode is of continuous duty. 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 from 0 to 100% and from 100% to 0, at a voltage of 230V or 115V, 50Hz or 60Hz to get a satisfactory constant-voltage performance.