Medium-voltage transformer protection system

The present utility model discloses a medium-voltage transformer protection system, which comprises at least one medium-voltage transformer. Each medium-voltage transformer is respectively provided with a protection device. Each protection device respectively comprises a vacuum circuit breaker, a controller, a temperature detector and a humidity detector. Each vacuum circuit breaker comprises a wiring incoming side, a wire outgoing side, an energy storage motor, a closing unit and an opening unit. The humidity detector and the temperature detector are electrically connected with a power supply. The medium-voltage transformer and the protection device are arranged in a box body. The box body is provided with at least one first hole. The secondary side of the medium-voltage transformer is connected with external load equipment through the first hole. According to the technical scheme of the utility model, the defect in the prior art that an existing medium-voltage transformer protection system comprises more devices and is hard to move can be overcome. Meanwhile, the above medium-voltage transformer protection system is highly integrated, convenient to move and good in heat dissipation property. Therefore, by means of the system, dry-load equipment and transformer equipment can be completely protected.