我国电网防污闪措施的回顾和总结_宿志一.pdf

DOI:10.13335/j.1000-3673.pst.2010.12.019 第34 卷 第12 期 电 网 技 术 Vol. 34 No. 12 2010 年12 月 Power System Technology Dec. 2010 文章编号：1000-3673 （2010 ）12-0124-07 中图分类号：TM 852 文献标志码：A 学科代码：470·4037 我国电网防污闪措施的回顾和总结 宿志一，李庆峰 （中国电力科学研究院，北京市海淀区 100192 ） Historical Review and Summary on Measures Against Pollution Flashover Occurred in Power Grids in China SU Zhiyi, LI Qingfeng (China Electric Power Research Institute, Haidian District, Beijing 100192, China) ABSTRACT: The main pollution flashover faults occurred in 年，而每一个频发年都与当年发生的局部区域性或 power system in China and the harm of large-area pollution 大面积污闪有关，如在1974 年苏沪一带和1990 年 flashover are expounded. The measures against pollution 华北(包括豫北和辽西)大面积污闪事故中，线路污 flashover adopted by domestic power systems in different 闪条次分别为当年全国污闪总条次的36%和71%， historical stages are summarized. It is pointed out that the measures against flashover, including anti-ice flashover of 因此，不杜绝大面积污闪就不可能把电网的污闪事 insulators, anti-wet flashover of large-sized bushings and 故控制在一个较低的水平。 anti-bird pecking of composite insulators, are important 本文将总结我国电网主要污闪事故以及大面积 contents in this field. Finally, it is also pointed out that to draft 污闪的危害，回顾提高电网抗污闪能力措施的发展 the standard to graduate the class of