Single-phase voltage regulation type automatic reactive power compensation device used in electrified railway

The utility model discloses a single-phase voltage regulation type automatic reactive power compensation device used in an electrified railway, which comprises a capacitor and a voltage regulator forregulating the voltage of the capacitor. The coil-in pig tail of a voltage regulator tap switch is electrically connected with coil-out ends at the front and tail of the capacitor respectively; the coil-in pig tail of the voltage regulator tap switch is electrically connected with the coil-out ends at the front and tail of the capacitor in the electrified railway power network; and the voltage regulator adopts the end to end voltage regulation, and a common V-type switch can meet the requirement. Due to high operation reliability, the voltage regulation type automatic reactive power compensation device solves the other problems of overvoltage, inrush current, harmonic current, short service life, low operation reliability, and the like of the other automatic reactive power compensation devices. The utility model e