Introduction: ST/STC series single-phase / three-phase AC synchronous generator alternator with excellent quality, high-quality products. The series single / three-phase AC synchronous generator is mainly used for lighting and town and country household electrical appliances of small ships. Generator elegant appearance, strong and durable structure, easy to maintain. Installation dimensions using the International Electrical Association IEC standard. Such as the use of B type end cover, but it can also be used in Australia and Europe and other regions supporting the requirements of harmonic excitation generator with constant voltage and automatic voltage control of the excitation system, has excellent dynamic performance, easy to use and reliable durable.