它由三相补偿变压器及自耦调压变压器、电刷、AVR稳压控制板系统、伺服电机等元器件组成。自耦调压变压器呈圆筒形，绕组外表面经过精密磨光加工后呈光滑的导电面，以便于电刷良好接触。当外界电压或电网电压波动时、AVR稳压控制系统自动采样电压信号输送到伺服电机、伺服电机通过转动器来驱动自耦调压变压器上电刷调整电压，使输出电压达到稳定效果。

适用场所Applicable place：

广泛应用于企业生产车间，配电房，数控设备，印刷设备，自动化设备，工矿，隧道，等电网波动大及弱电场所。SBW series three-phase automatic compensation power regulator is designed and manufactured with international advanced compensation technology. It can operate normally when the power grid voltage fluctuates or the load voltage changes. Compared with other models of voltage regulator, it has large capacity, high efficiency and reliable operation. It is composed of three-phase compensation transformer and self-coupling voltage regulating transformer, brush, AVR voltage regulating control board system, servo motor and other components. The transformer is cylindrical, and the outer surface of the winding has a smooth conductive surface to facilitate good contact with the brush. When the external voltage or power grid voltage fluctuates, the AVR voltage control system automatically samples voltage signals to the servo motor, and the servo motor drives the brush to adjust the voltage through the rotating transformer, so that the output voltage can achieve a stable effect.