摘要
绝缘子是输电线路的重要组成部分,其运行的可靠性和稳定性与电力系统的安全运行状况息息相关,所以绝缘子的带电检测是线路运行维护中的重要工作之一。本文提出了一种基于光纤电场传感器的绝缘子检测方法,并研究了相关的检测装置,并采用此检测装置对220 kV线路进行了劣化绝缘试验,试验结果表明,绝缘子在高压端、低压端以及中部的劣化都能够通过电场测量结果表现出来,说明本文的检测方法可以成为输电线路带电检测劣化绝缘子的有效手段。
Insulators are an important part of transmission lines. The reliability and stability of their operation are closely related to the safe operation of power systems. Therefore, the live detection of insulators is one of the important tasks in line operation and maintenance. In this paper, an insulator detection method based on fiber-optic electric field sensor is proposed, and related detection devices are studied. The test device is used to test the degradation insulation of 220 kV line. The test results show that the deterioration of the insulator at the high voltage end, the low voltage end and the middle part can be expressed by the electric field measurement results, indicating that the detection method of this paper can become the live line detection—an effective means of degrading insulators.
