Y-type wiring-based anti-resonance voltage transformer with grounding compensation function

The invention discloses a Y-type wiring-based anti-resonance voltage transformer with a grounding compensation function. The anti-resonance voltage transformer comprises a PT primary winding, a PT secondary winding and an iron core. A neutral point of the PT primary winding is connected with a damping resistor in series and is grounded, a compensation reactor is connected between the neutral point of the PT primary winding and the damping resistor in series, and the two sides of the damping resistor are provided with a control switch assembly in parallel, wherein the control switch assembly can quickly short-circuit the damping resistor when the system has a single-phase earth fault so as to enable the compensation reactor to realize a grounding compensation function. The PT primary winding adopts Y-shaped wiring and is grounded through the compensation reactor and the damping resistor, and the damping resistor is automatically switched in or switched out under the control of a self-triggering bidirectional s