Electrical equipment temperature monitoring device and NTC temperature sensor

　　With the continuous improvement of the operation level of the power grid, power transformers have become one of the important and expensive equipment in the power system, and their reliability directly affects the safety, efficiency, and economic operation of the power grid. The end of the lifespan of most transformers is due to their loss of insulation capacity, and the main factor affecting insulation capacity is the winding temperature during transformer operation. If the winding temperature during transformer operation is too high, it will not only affect the service life of the transformer, but also pose a threat to the safe operation of the transformer. Therefore, it is necessary to monitor the temperature during the installation of NTC temperature sensors in the transformer.

　　The temperature monitoring device for electrical equipment is equipped with an NTC temperature sensor on the top of the box, which regulates the internal temperature of the transformer equipment through a temperature control mechanism to prevent excessive winding temperature during operation, prolong the service life of the transformer, and ensure its safe operation.

　　The temperature monitoring device for electrical equipment uses NTC temperature sensors, which use glass sealed thermistors. The glass shell encapsulates the thermistor chip inside, and one end of the two leads is connected to the thermistor chip, while the other end extends out of the glass shell as two pins; And the temperature sensor also includes a stainless steel shell and organic silicon sealing adhesive. The stainless steel shell is set outside the glass shell, which is sintered and connected to the glass shell through stainless steel sealing glass powder. The organic silicon sealing adhesive is sealed inside the stainless steel shell. This NTC temperature sensor has a sensitive response, fast temperature sensing speed, high temperature measurement accuracy, and can work normally in high-temperature environments for a long time. It is suitable for temperature monitoring devices in electrical equipment.

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