tg2series capacitor fast switching switch, suitable for capacitor fast switching switch for power reactive power compensation of ≤1kv system, using high-current cake silicon module as switching device, to solve the problem of controlling a single group of large-capacity capacitors, pulse transformer triggering, and angle-split internal control there are two solutions of angle external control and advanced high-speed single-chip measurement algorithm to ensure that the current is switched on and off at the safe zero point, no closing inrush current is generated, and the response time is less than 20ms, which can effectively compensate for the impact load; built-in temperature sensor and temperature control algorithm, make the fan reasonable and safe to use, accurate current overcurrent protection, and prevent the overcurrent risk caused by system resonance and other reasons.