The structure and materials of electrical equipment are usually greatly affected by temperature. During normal operation, electrical equipment will generate a certain amount of heat. However, as the power equipment ages or due to rust or poor contact at some contact points, some problems such as increased resistance, excessive current and abnormal voltage would occur, which may cause the equipment to heat abnormally. Therefore, detecting temperature can provide a good understanding of the operating status of power equipment and help operation and maintenance personnel troubleshoot defects in a timely manner.
The electric power industry is currently the most mature and stable application in the field of preventive detection. As the most effective online power detection method, infrared thermal imaging technology can quickly repair power equipment, thereby effectively reducing the time cost of equipment maintenance and improving the reliability of equipment operation. There are many advantages to using infrared thermal imaging for power detection.
Advantages of infrared thermal imaging in power inspection
1. Non-contact & safer
Infrared thermal imaging is a passive non-contact detection and identification technology. When diagnosing equipment status, it has the characteristics of long distance, non-contact, large scale detection and no sampling required. It is also accurate, fast, and intuitive. It can monitor and detect online in real time and diagnose most faults in electrical equipment. This makes the operator safer when inspecting equipment failures with infrared camera.
2. Free from electromagnetic interference
Infrared thermal imaging technology is not subject to electromagnetic interference and can accurately track thermal targets over long distances. Since infrared thermal imaging technology uses thermal infrared rays, it is not subject to electromagnetic interference. Its advantages are more prominent when used in substations.
Infrared thermal imaging technology can truly achieve 24-hour all-weather monitoring. Infrared radiation is the most widespread radiation in nature. The atmosphere and smoke can absorb visible light and near-infrared rays, but are transparent to infrared rays of 3-51xm and 8-14txm. These two bands are called the "atmospheric window" of infrared. Therefore, by using these two windows, you can clearly observe the monitored target in a completely dark night, or in a harsh environment such as rain or snow, with dense smoke and clouds.
3. Wide coverage and more efficient
Infrared thermal imaging technology has strong long range detection ability. The focal length of the infrared thermal imager detector is 500px-infinity, which is suitable for non-contact large-area remote sensing. Moreover, the temperature measurement accuracy is as high as 0.1-0.02℃, and the temperature measurement range is 15O~2000℃.
4. Not affected by strong light.
Infrared thermal imaging technology can visually display the temperature of an object's surface. Not affected by strong light, the infrared thermal imaging camera can simultaneously measure the temperature of each point on the surface of an object, intuitively display the temperature field on the surface of the object, and display it in the form of an image. At the same time, the infrared thermal imager detects the amount of infrared thermal radiation energy of the target object. It will not appear halo or turn off, so it is not affected by strong light.
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Uncooled Infrared Detectors
Uncooled Thermal Modules
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Cooled Thermal Modules