Three-phase high-precision automatic AC voltage regulator is a combination of single-phase product performance, the input phase system for the three-phase four-wire system, in the rated capacity range, can be used at the same time the power supply source voltage of single-phase 220V or 3 phase 380V electrical equipment, and is equipped with overvoltage protection. Its structure is composed of contact autocoupling voltage regulator, servo motor, automatic control circuit, etc., when the grid voltage is unstable or the load changes, the automatic sampling control circuit sends out a signal to drive the servo motor, adjust the position of the carbon brush of the autocoupling voltage regulator, so that the output voltage is adjusted to the rated value and reach a stable state. JIEZOU POWER is a professional manufacturer of transformer, substation,HV and LV switchgear, established in 2006 year. There’re more than 50 engineering and technical personnel, more than 1000 employees here.Our company iunswervingly adhere to the "quality first, management norms, to develop" the management policy, adhering to the "good polity, harmonious coexistence, service society" business philosophy, foreign attaches great importance to the local culture, create a right place, right time and the development of the atmosphere, and the power sector and the broad masses of customers to maintain good relations of cooperation win-win and mutual benefit.Applications It can be widely used in any electrical place and is an ideal power supply. It is mainly used in the following fields: scientific research departments, industrial and mining enterprises, medical and health care, broadcasting stations, transportation, government undertakings and other industries.Product Feature This series of voltage regulator for the common type, variety, specifications, beautiful appearance and other advantages. With waveform distortion, feasible performance, can run for a long time and other characteristics, with overvoltage protection function, according to user needs, can set undervoltage, delay and other protection functions.