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Discussion on infrared accurate temperature-measuring technology of composite insulators for overhead lines

机译：桥接线复合绝缘子红外准确测量技术探讨

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摘要

Through analysing the infrared temperature measurement data obtained from composite insulators for overhead lines in actual operation state and atmospheric environment, detection requirements of infrared accurate temperature-measuring technology of composite insulators for overhead lines were discussed, such as the detector, detection environment, and position. According to the local detection, two kinds of insulators' local heating, caused by insulation deterioration and damp contamination on the surface, were researched. A judgment method was proposed, and overheat of the electric equipment, which was caused by voltage effect, should be judged from both the contrast of similar equipment and the thermal image characteristic. This method can greatly reduce the insulators overheat error rate, improve the detection efficiency of composite insulators, and enhance the accuracy of composite insulators' insulation defects judgment.
机译：通过分析从实际操作状态和大气环境中的复合线路获得的红外线温度测量数据，讨论了用于架空线的复合绝缘体的红外准确测量技术的检测要求，例如探测器，检测环境和位置。根据局部检测，研究了两种绝缘子的局部加热，由绝缘劣化和表面抑制污染。提出了一种判断方法，并且应从相似设备和热图像特性的对比度来判断由电压效应引起的电气设备过热。这种方法可以大大减少绝缘体过热误差率，提高复合绝缘子的检测效率，增强了复合绝缘体绝缘缺陷判断的准确性。

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