Application Design of Composite Switch in Explosion-proof Reactive Power Compensation

In order to solve the reactive power compensation problem in the coal mine1.14kV mobile substation,using contactors and thyristor parallel composite switch as switching devices for parallel capacitor compensation system,using two-phase switched thyristor series switching,the hardware circuit solved the problem of overvoltage,series connection Equalizing and inrush current impact,and has good engineering practice.