TZH series small three-phase synchronous Alternator connect with the prime mover or the belt directly. It can be a movable or fixed small power supply for the villages, town, working sites and pasture-land. This series generator is star connection with neutral point for three phase, rated wire voltage is 400v, phase voltage is 230v frequency is 50Hz, power factor is from 1.0~0.8 (lag.) It is new construction, simple unique. It can get self-excitation constant voltage without AVR regulator. It is easy in building voltage, its waveform distortion rate of voltage is low, its voltage regulating accuracy is voltage regulation is ≤±5% when its power factor is 1.0~0.8(lag.)its frequency change rate is less than 3% when its from 0~100% and 100%~0,(No load is 51.5Hz,full load is 50Hz).