Single-phase and three-phase regulator regulator is composed of voltage regulating coil, control computer board and servo motor carbon brush. When the input voltage or load changes, the computer board is controlled to sample, compare and amplify, and then the carbon brush on the servo motor is driven to rotate to change the position of the carbon brush on the voltage regulating coil through automatic adjustment line. The turn-to-turn ratio keeps the output voltage stable.

    Chengdu regulator has single-phase and three-phase regulators. The input voltage of single-phase is 70-250V, 120V-250V and 140 V-250V respectively, and the output voltage is 220 V+3%. The three-phase input voltage is 210V-430V, 260V-430V and 300V-456V. The output phase voltage is 220V (+3%) and the line voltage is 380V (+3%). The overvoltage protection value of Chengdu voltage regulator is 246V (+4V) and the phase voltage is 246V (+4V). The principle of voltage compensation is also used in the voltage regulator with larger capacity.

    With the development of society, there are more and more electrical equipments, and the voltage is not stable naturally. Unstable voltage can cause fatal damage or misoperation of equipment, affect production, cause delays in delivery, quality instability and other losses. At the same time, it accelerates the aging of the equipment, affects the service life and even burns down the accessories, which makes the owners face the trouble of need to repair or renew the equipment in a short period of time, wastes resources; serious accidents even occur, resulting in inestimable losses.