基于联合检测的环网柜局部放电方法研究

随着城市配电网的快速发展,对供电可靠性的要求也越来越高,环网柜作为配电网联络、转电的设备,其重要性不言而喻。环网柜局部放电的快速准确检测对于保障电网安全稳定运行,提高供电的可靠性具有重要的意义。文中详细介绍了脉冲电流法和特高频法的相关原理及其相应的特点,并提出了运用脉冲电流法与特高频联合检测方法对环网柜的局部发电进行检测。通过现场测试可知,所提出的方法能够准确快速地实现环网柜局部放电的检测,具有很好的实践意义。

Research on combined detection method of partial discharge based on ring network cabinet

With the rapid development of the urban distribution network, the requirements for power supply reliability are also getting higher and higher. The importance of the ring network cabinet as the distribution network connection and the power transmission equipment is self-evident. The rapid and accurate detection of partial discharge of the ring network cabinet is of great significance for ensuring the safe and stable operation of the power grid and improving the reliability of the power supply. In this paper, the related principles of pulse current method and UHF method and their corresponding characteristics are introduced in detail, and the combined detection method of pulse current method and UHF is proposed to detect the local power generation of the ring network cabinet. It can be seen from the field test that the method proposed in this paper can accurately and quickly realize the detection of partial discharge of the ring network cabinet, which has practical practical significance.#$NLKeywords: pulse current method, UHF method, ring network cabinet, partial discharge.