The normal operation of the power distribution system is the basic guarantee for maintaining social production and life. The daily maintenance and inspection of high-voltage power supply facilities (such as substations) is a long and arduous task that requires courage, caution, and prevention. Operations personnel need to obtain a comprehensive and detailed overview of switchgear, including all circuit breakers and power switches, converters, insulators, screw fittings, cables, or other connections.

In power transmission, most symptoms of wear, material fatigue, or cable rupture are caused by overheating due to increased resistance. If the resistance is too high, the heat generated will damage the components and may cause power outages.

Another challenge lies in the cooling oil of the transformer. Due to the corrosion of the insulation, sediment will be generated here, and the sediment will accumulate in the cooling pipes. In the affected cooling ducts, blockages in circulation can initially damage cooling and, in the worst case, result in the failure of all cooling functions of the transformer.

From the above fault phenomena, we can see that the fault can cause local temperature anomalies in the facility. Infrared thermal imager, a long-distance non-destructive testing method, has become a tool for electrical fault diagnosisOne of the methodsUnder the premise of ensuring the personal safety of the testing personnel and no need to shut down the facilities, non-contact and rapid detection of temperature anomalies can be carried out.

There are many types of infrared thermal imagers, what configuration can meet the needs of electrical fault diagnosis? In fact, starting from the requirements, we can know what kind of thermal imager we need: