Temperature sensor system for nut type high-voltage switch

A temperature sensor system for a nut type high-voltage switch comprises a power supply module, a ring main unit load switch fixing nut, a storage battery, a detection circuit and a comparison circuit, an opening is formed in the outer side end of the fixing nut, and the thermistor is mounted in the opening of the fixing nut; and the power supply module, the storage battery, the detection circuit and the comparison circuit are arranged in the element box and are electrically connected. According to the utility model, the thermistor is used to detect the temperature of the connecting nut of the load switch of the ring main unit, when the temperature exceeds a threshold value, the buzzer is used to give an alarm at the first time to prompt a worker (the worker overhauls a load end, electrical equipment and the like), and at the same time, the temperature of the connecting nut is detected. And the output power supply of the circuit breaker can be disconnected, and the load end stops working, so that the safety o