According to the development of Chinese electric power and the demand of the vast number of users, the scheme of no power cut or at least power cut is put forward to ensure the reliability of power supply and utilization. Petroleum , chemicals , railways, communications, Machinery . Architecture, military, aerospace, finance , Manufacturing. Automation industry, public institutions and other fields to do 10KV power network multi-channel automatic switching. This product is selected for the secondary development on the high-reliability 10kV outdoor high-voltage vacuum circuit breaker that runs the most in Chinese power grid and has the longest service life. A vacuum circuit breaker and a three-station automatic isolation switch are used to pass through the oil pressure transformer .The current and voltage signals in the circuit breaker are provided to the intelligent controller, and all white switching is realized after calculation and judgment.

Double power cutting function: if the line into A or B into lines the voltage on the road, the judge the state of the circuit breaker and isolating switch automatically, automatic cutting: this device has the over current protection: test load on the current operation, to achieve definite time overcurrent and quick break protection, reclosing and locking function at A time, A call delay switch, can set the priority to function when A set of power supply side to restore power to the side of the power supply, can automatically after no voltage vacuum breaker tripping automatically into lines, automatic isolation switch is not to change the direction, such as the next side of any power supply when it first turned to the side is white, vacuum breaker automatically switching, it can also repair manual brake, switch latching. Automatic isolation switch stops in the center to ensure the safety of electricity.