Open AccessDiscussion on infrared accurate temperature‐measuring technology of composite insulators for overhead lines
Author(s) -
Liu Rong,
Shen Qinghe,
Liu Hui,
Duan Yubing,
Zhang Yang,
Zhou Chao
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8425
Subject(s) - composite number , overhead (engineering) , detector , infrared , materials science , overhead line , voltage , temperature measurement , automotive engineering , reliability engineering , optoelectronics , acoustics , electrical engineering , mechanical engineering , environmental science , electronic engineering , composite material , engineering , optics , physics , quantum mechanics
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.