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电力系统中,设备的部过热是造成设备故障和缩短设备寿命的重要原因.因此,在带电状态下对设备过热故障(易发热部分)进行有效的检测是非常重要的.在我国的电力工业中,多年来传统的过热故障探测方法曾使用过熔蜡法,即用特制的蜡片粘贴在设备易发热的部位,通过其熔化与否来判断是否过热.这种测试技术使用的局限性大,准确度差.后来部分电力部门采用了红外线测温仪,也不理想.我公司检测采用了TVS—2000型红外热像仪.这种热像仪不仅克服了贴腊片和红外线测温仪的所有缺点,而且还可以适时显示物体表面温度分布场,并能记忆储存在磁盘上,为运行设备的热状态分析提供更多的信息.自1993年元月使用TVS—2000型红外热像仪以来,我们对本公司所辖的部分变电站进行了现场测量.发现被测的9个变电站有严重发热缺陷的部位25处.绝大部分都得到迅速处理,保证了电力设备的安全运
In the power system, the overheating of the equipment is an important cause of the equipment failure and shortening the service life of the equipment, therefore, it is very important to detect the equipment overheating (hot part) under the charged condition effectively.In China’s power industry , Over the years the traditional overheating fault detection method has used the melting method, that is, with a special wax paste in the device easy to heat the site, through its melting or not to determine whether overheating.This test technique has the limitations of using, Accuracy is poor. Later, some electric power department using infrared thermometer, is not ideal. Our testing using TVS-2000-type thermal imaging camera. This thermal imaging camera not only overcome the paste and infrared thermometer All the shortcomings, but also timely display of the surface temperature distribution of the object, and can be stored on disk, providing more information for the thermal analysis of the operating equipment. Since the TVS-2000 thermal imaging camera was used in January 1993 , We carried out on-site measurements of some of the substations under our jurisdiction and found that there were 25 sites with serious fever defects in the 9 substations tested, the vast majority of which were promptly handled and guaranteed Safe operation of power equipment