High-voltage voltage and current combined sensor integrated with capacitive power supply

The invention provides a high-voltage voltage and current combined sensor integrated with a capacitive power supply. Thehigh-voltage voltage and current combined sensor comprises a base, a plurality of device bodies are uniformly arranged at the upper part of the base, and a voltage sensor, a current sensor and a capacitive power supply are packaged in each device body; each voltage sensor comprises a right-side high-voltage arm capacitor assembly and a right-side low-voltage arm capacitor assembly, each current sensor comprises a phase current isolation coil assembly and a zero-sequence current isolation coil assembly, and each capacitive power supply comprises a left-side high-voltage arm capacitor assembly and a left-side low-voltage arm capacitor assembly; a voltage error adjusting circuit assembly, a voltage isolation coil assembly, an IV conversion resistor assembly, a current error adjusting circuit assembly, a compensation reactor, a transformer assembly and an overvoltage protection circuit assembly