Automatic control system for vacuum degree of sealed oil tank of generator

The utility model discloses an automatic vacuum degree control system for a sealed oil tank of a generator. The automatic vacuum degree control system comprises the sealed oil tank, an oil supply pump arranged at one end of the sealed oil tank and the generator arranged at one end of the oil supply pump. The monitoring assembly is arranged on one side of the sealed oil tank and comprises a pressure transmitter arranged on the outer side of the sealed oil tank and a signal isolation card arranged on one side of the pressure transmitter; and the negative pressure assembly is arranged on one side of the sealed oil tank and comprises a vacuum pipe arranged on one side of the sealed oil tank and communicated with the sealed oil tank, a variable frequency vacuum pump arranged at one end of the vacuum pipe, an output pipe arranged at one end of the variable frequency vacuum pump and an oil smoke exhaust fan arranged at one end of the output pipe. According to the device, the sealing assembly, the monitoring assembly