Transformer expansion tank oil level monitoring device

The invention discloses a transformer oil conservator oil level monitoring device, and belongs to the technical field of transformer oil conservators, the transformer oil conservator oil level monitoring device comprises an electric control assembly and an automatic trigger assembly which are arranged in an oil conservator, the electric control assembly comprises an electric control box, a power module is arranged in the electric control box, the positive electrode of the power module is electrically connected with a first wire, and the negative electrode of the power module is electrically connected with a second wire. The cathode of the power module is electrically connected with a second wire. An alarm device is fixedly arranged on the outer wall of the oil conservator and connected to the first wire in series. A through hole is formed in the top of the electric control box, the ends, away from the power module, of the first wire and the second wire extend to the position below the through hole, and the en