Electrical equipment, such as switch contacts, cable connectors, busbar connection points, generator and transformer lead wire connectors, motor junction box connectors, etc., will experience temperature changes after current is applied, and their heat generation is proportional to the square of the applied current.

When high-voltage equipmentWhen overloaded operation or contact oxidation or poor contact occurs, it often causes an increase in temperature in the relevant parts of high-voltage equipment. Overheating can lead to insulation aging or even burning of insulation materials, causing short circuit faults and significant economic losses.

Therefore, online monitoring of the temperature of the contact point is quite important. When it exceeds a certain set value or the three-phase temperature is unbalanced, local and remote alarm signals are issued to prompt production and maintenance personnel to timely detect the precursor of faults, which is of great significance for the safe and stable operation of high-voltage power equipment and power systems.

Traditional active wireless temperature measurement products have a large volume, short lifespan, and are prone to leakage and explosion at high temperatures,ButIt is very meaningful to use compact passive wireless temperature measurement products to achieve online temperature measurement and fault warning.

The location should be infinitely close to the hotspot; The longer the distance, the greater the impact of the environment, and the lower the accuracy.