SBW-SJ series three-phase AC automatic voltage regulator is based on the perfect combination of traditional compensated AC voltage regulator and modern intelligent control technology, so that users can enjoy the reliability and convenience of parameter setting and maintenance brought by modern control circuits, highlighting the safety, economy, stability, energy saving and humanization of the man-machine interface of the voltage regulator equipment. This voltage regulator power supply can be equipped with a variety of intelligent interfaces to realize the functions of "remote communication, telemetry, and remote control". Control method: Adopt high-efficiency and compact microcontroller control, anti-harmonic interference, three-phase average true RMS sampling; Parameter setting: code display, digital parameter adjustment; Operation mode: membrane tactile switch; Display carrier: white LCD screen on blue background. SBW-SJ series laser special voltage regulator should be used indoors, and the normal use conditions are: 1. Ambient temperature: -10°C—+45°C 2. Altitude: <1000M 3. Relative humidity: 20%-95% 4. There are no gases, vapors, chemical deposits, dirt and other explosive and corrosive media that seriously affect the insulation of the voltage regulator. 5. There is no serious vibration or bump in the installation site.