盐雾对染污绝缘子操作冲击特性的影响研究  

Study on the Effect of Salt Fog on Polluted Insulator Under Switching Impulse

作　　者：耿江海[1] 钟正[1] 姜烁 律方成[1] 刘云鹏[1] 周松松[2] Geng Jianghai;hong Zheng;Jiang Shuo;Lu Fangcheng;Ltu Yunpeng;Zhou Songsong(Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding 071003, China;China Electric Power Research Institute, Beijing 100192, China)

机构地区：[1]华北电力大学河北省输变电设备安全防御重点实验室,河北保定071003 [2]中国电力科学研究院,北京100192

出　　处：《系统仿真学报》2018年第7期2675-2681,共7页Journal of System Simulation

基　　金：国家电网公司科技项目(5228001600DV);中央高校基本科研业务费专项资金(2017MS105)

摘　　要：雾霾中水滴与可溶性导电物质共存使空气呈现一定的导电性,从而在原有绝缘子染污状态下叠加了污染成分。以XP10-160型瓷质悬式绝缘子为试品,通过盐雾法模拟自然环境下存在的高电导率雾,开展了绝缘子表面洁净及染污下的操作冲击试验,分析了不同盐密、雾水电导率下的操作冲击闪络特性,并仿真分析了高电导率雾对绝缘子表面场强分布的影响。在试验过程中采集到了在不同雾水电导率下绝缘子的操作冲击闪络波形,其波头、波尾时间均较标准波形有所缩短,这也印证了相关文献中提到的非标准操作波。Water is mixed with soluble conductive material in haze so that the air has certain conductivity, resulting in extra mixed pollution components on the surface of the existing polluted insulator. In this paper, with the XP10-160 ceramic suspension insulator being used as the sample, the switching impulse test of the clean and polluted insulator is carried out by simulating high conductivity fog under the natural environment by salt fog method. This paper analysis the flashover characteristics of switching impulse under different salt density and water fog conductivity. The effect of high conductivity fog on the field intensity distribution of insulator is simulated and analyzed. This paper collects the waveform of switching impulse flashover in different fog conductivity, and the wave head and wave tail time are shorter than the standard waveform, which also confirms the non-standard switching impulse wave that mentioned in the relevant literature.

关 键 词：瓷质绝缘子 高电导率雾 操作冲击 盐密 波形 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]