ST single-phase AC synchronous generator is mainly used as a power source for lighting of small ships and daily appliances in towns and villages. The generator is anti-drip type, convex pole rotating magnetic field self-excited constant voltage type. The internal use of high-quality electromagnetic materials and electrical materials, stator insulation E (or B) level, rotor insulation for the B level. The generator has an elegant and generous appearance and a durable structure. Maintenance is convenient. The installation size adopts IEC standard of International Electrotechnical Association. If the moan end cover is adopted, it can also be adapted to the matching requirements of Australia, Europe and the United States and other regions. The generator adopts harmonic excitation constant voltage and automatic voltage control excitation constant voltage excitation two kinds of excitation system, has excellent kinetic energy characteristics, easy to use and reliable, durable.