Transformer low-temperature vacuum drying device and operation method

The invention discloses a transformer low-temperature vacuum drying device. The device comprises a vacuum drying tank, wherein the vacuum drying tank is connected with a vacuumizing system, a heating system, a condensing system and a micro-channel filling system, and the vacuumizing system, the heating system, the condensing system and the micro-channel filling system are electrically connected with a control system; and the control system is a PLC, the PLC is electrically connected with a temperature sensor and a pressure sensor, and the temperature sensor and the pressure sensor are arranged in the vacuum drying tank. According to the device, a transformer is dried through terahertz radiation, due to the fact that energy carried by terahertz waves is high, heat conduction of media such as air is not needed when water molecules are heated through the terahertz waves, heating is conducted from the interior of water through the extremely high absorptivity of the water molecules to the terahertz waves, and the