TSC dynamic reactive power compensation device uses all-digital intelligent control system, using high-power thyristors in series high voltage AC non-contact switch, can achieve multi-level fast zero-capacitor bank switching. High pressure TSC dynamic reactive power compensation device response time less than or equal 20ms, on the impact load, time-varying loads can be real-time monitoring, dynamic compensation, power factor correction to achieve more than 0.9 goals; while the product absorbing foreign advanced technology to solve the existing complex compensation regulator, control switch vulnerable, and short lifespan, has a dual function of dynamic reactive power compensation and voltage stabilization system, leading technical level. The product also has significantly reduced network losses to save energy, improve power quality and other characteristics, the user can bring huge economic and social benefits.