|
|
- 2018
污秽绝缘子安装并联间隙的雷电击穿特性分析
|
Abstract:
为了分析不同盐密值下污秽绝缘子并联间隙的雷电冲击击穿特性，以SC-210瓷横担绝缘子为例进行雷电冲击试验，通过对比清洁和污秽绝缘子的电场仿真结果，对试验时多次发生沿绝缘子表面闪络的现象进行了分析.试验和分析表明：安装并联间隙的SC-210瓷横担，其雷电冲击击穿电压U50%随盐密值增加而降低，更容易趋于饱和；污秽绝缘子与防雷间隙的雷电冲击伏秒特性曲线逐渐相交，试验时多次发生沿绝缘子表面闪络的现象.研究结果建议在进行并联间隙与绝缘子串的绝缘配合整定时，应考虑绝缘子表面污秽对闪络/击穿部位的影响.
：To analyse the lightning impulse breakdown characteristics of the parallel gaps of contaminated insulators with different salt densities,the SC-210 porcelain cross-arm insulator was used to conduct the lightning impulse test. Comparing with the electric field simulation results of the clean and contaminated insulators,the phenomenon of flashover along the surface of the insulator was analysed several times during the test. The tests and analysis indicate that in case of the SC-210 porcelain cross-arm installed with parallel gaps,its lightning impulse breakdown voltage U50% decreases with increasing salt density and tends to saturate more readily. The voltage-time characteristics curve of the lightning impulse of the contaminated insulator and the lightning protection gap gradually intersect,and the phenomenon of flashover along the surface of the insulator occurs several times during the test. The results of the study suggest that the effect of contamination on the flashover/breakdown location on the surface of the insulator should be considered in the insulation timing of the parallel gap and the insulator string
| [1] | 舒立春,袁前飞,蒋兴良,等. 低气压下绝缘子雷电冲击的污闪特性[J]. 高电压技术,2010,36(6):1347-1352 SHU Lichun, YUAN Qianfei, JIANG Xingliang, et al. Insulator pollution flashover characteristic under low air pressure caused by lightning surge[J]. High Voltage Engineering, 2010, 36(6):1347-1352 |
| [2] | 张小福. 工频电压对污秽玻璃绝缘子冲击闪络特性影响的研究[D]. 武汉:华中科技大学,2006 |
| [3] | 杨庆,董岳,叶轩,等. 高海拔地区500 kV输电线路用复合绝缘子与并联间隙的绝缘配合[J]. 高电压技术,2013,39(2):407-414 YANG Qin, DONG Yue, YE Xuan, et al. Insulating coordination between composite insulator and parallel gap device of 500 kV transmission line at high altitude area[J]. High Voltage Engineering, 2013, 39(2):407-414 |
| [4] | 王希,王顺超,何金良,等. 安装避雷器后10 kV配电线路的雷电感应过电压特性[J]. 电网技术,2012,36(7):149-154 WANG Xi, WANG Shunchao, HE Jinliang, et al. Lightning induced overvoltage characteristics of 10 kV distribution line after installation of lightning arrester[J]. Power System Technology, 2012, 36(7):149-154 |
| [5] | 谢化安,谭进,刘刚. 高耸建筑群对附近10 kV架空线路雷击跳闸率的影响[J]. 水电能源科学,2013,31(2):196-244,244 XIE Huaan, TAN Jin, LIU Gang. The influence of the nearby 10 kV overhead line lightning trip-out rate by towering buildings[J]. Water Resources and Power, 2013, 31(2):196-244,244 |
| [6] | 刘平原,黄道春,霍锋,等. 220 kV同塔双回输电线路复合绝缘子的操作和雷电冲击放电特性[J]. 高电压技术,2014,40(4):1022-1029 LIU Pingyuan, HUANG Daochun, HUO Feng, et al. Switching and lightning impulse discharge characteristics of composite insulators for 220 kV double circuit transmission line on the same tower[J]. High Voltage Engineering, 2014, 40(4):1022-1029 |
| [7] | 杨鹏程,徐涛,叶奇明,等. 导线雷电冲击电晕特性试验研究[J]. 中国电机工程学报,2012,32(28):164-170 YANG Pengcheng, XU Tao, YE Qiming, et al. Experimental researches on lightning impulse corona characteristics of conductors[J]. Proceedings of the CSEE, 2012, 32(28):164-170 |
| [8] | 胡伟,陈勇,万启发,等. 三峡550 kV GIS的雷电冲击耐受试验方法[J]. 高电压技术,2011,37(4):883-887 HU Wei, CHEN Yong, WAN Qifa, et al. Test on lightning impulse withstand voltage of the three gorges right bank 550 kV GIS substation[J]. High Voltage Engineering, 2011, 37(4):883-887 |
| [9] | 王希,王顺超,何金良,等. 10 kV配电线路的雷电感应过电压特性[J]. 高电压技术,2011,37(3):599-605 WANG Xi, WANG Shunchao, HE Jinliang, et al. 10 kV lightning induced over-voltage features of the 10 kV distribution circuit[J]. High Voltage Engineering, 2011, 37(3):599-605 |
| [10] | 陈思明,尹慧,唐军,等. 10 kV架空配电线路感应雷过电压暂态特性分析[J]. 电瓷避雷器,2014(2):90-96 CHEN Siming, YIN Hui, TANG Jun, et al. 10 kV overhead distribution lines induction lightning overvoltage in the transient characteristic analysis[J]. Insulators and Surge Arresters, 2014(2):90-96 |
| [11] | 施荣,屠幼萍,张媛媛,等. 避雷器改善35 kV配电线路耐雷水平的效果分析[J]. 电网技术,2006,30(19):92-96 SHI Rong, TU Youping, ZHANG Yuanyuan, et al. Lightning arrester to improve the effect of 35 kV power distribution line lightning resisting level of analysis[J]. Power System Technology, 2006, 30(19):92-96 |
| [12] | 张志劲,司马文霞,蒋兴良,等. 超/特高压输电线路雷电绕击防护性能研究[J]. 中国电机工程学报,2005,25(10):1-6 WANG Zhijin, SIMA Wenxia, JIANG Xingliang, et al. U/EHV transmission line lightning strike protection performance study[J]. Proceedings of the CSEE, 2005, 25(10):1-6 |
| [13] | 司马文霞,张智,杨庆,等. 110 kV复合绝缘子棒形并联间隙工频电弧疏导过程的试验研究[J]. 中国电机工程学报,2012,32(31):114-121,226 SIMA Wenxia, ZHANG Zhi, YANG Qin, et al. Experimental research on power frequency arc movement process of 110 kV composite insulators in rod shape parallel gap lightning protection devices[J]. Proceedings of the CSEE, 2012, 32(31):114-121,226 |
| [14] | 张斌. 劣化绝缘子检测技术的国内外研究现状[J]. 电网技术,2006(30):276-278 ZHANG Bin. Current study situation of faulty insulator detection method home and abroad[J]. Power System Technology, 2006(30):276-278 |
| [15] | 王巨丰,李世民,闫仁宝,等. 可主动快速熄灭工频续流电弧的灭弧防雷间隙装置设计[J]. 高电压技术,2014,40(1):40-45 WANG Jufeng, LI Shimin, YAN Renbao, et al. Design of arc-extinguishing lightning protection gap device capable of actively extinguishing power frequency freewheeling arc[J]. High Voltage Engineering, 2014, 40(1):40-45 |
| [16] | 颜怀梁,顾乐观,孙才新. 雷电冲击电压作用下的污秽绝缘子闪络特性[J]. 重庆大学学报,1985,8(4):120-129 YAN Huailiang, GU Leguan, SUN Caixin. Flashover characteristics of pollution insulators under lightning impulses[J]. Journal of Chongqing University, 1985, 8(4):120-129 |
| [17] | 谷山强,何金良,陈维江,等. 架空输电线路并联间隙防雷装置电弧磁场力计算研究[J]. 中国电机工程学报,2006,26(7):140-145 GU Shanqiang, HE Jinliang, CHEN Weijiang, et al. Magnetic force computation for the electric arc of parallel gap lightning protection device on overhead transmission lines[J]. Proceedings of the CSEE, 2006, 26(7):140-145 |
| [18] | 唐军,许志荣,陈小平,等. 高耸建筑群对10 kV配电线路感应雷雷击特性的影响[J]. 电瓷避雷器,2012(4):79-84,90 TANG Jun, XU Zhirong, CHEN Xiaoping, et al. The influence of 10 kV distribution line induction thunder lightning character by towering buildings[J]. Insulators and Surge Arresters, 2012(4):79-84,90 |
| [19] | 陈维江,孙昭英,周小波,等. 防止10 kV架空绝缘导线雷击断线用穿刺型防弧金具的研制[J]. 电网技术,2005,29(20):86-88 CHEN Weijiang, SUN Zhaoying, ZHOU Xiaobo, et al. Development of arc-protection hardware with stabs to prevent breakage of 10 kV overhead insulation-covered conductors caused by lightning stroke[J]. Power System Technology, 2005, 29(20):86-88 |
| [20] | 陈维江,孙昭英,王晓刚,等. 10 kV架空绝缘线路用防弧金具及放电箝位绝缘子的工频电弧试验条件[J]. 电网技术,2005,29(17):5-7,13 CHEN Weijiang, SUN Zhaoying, WANG Xiaogang, et al. Power frequency arc test conditions of power frequency arc-protection hardware and clamping post composite insulators for 10 kV overhead insulation-covered conductors[J]. Power System Technology, 2005, 29(17):5-7,13 |
| [21] | 陈维江,孙昭英,王献丽,等. 35 kV架空送电线路防雷用并联间隙研究[J]. 电网技术,2007,31(2):61-65 CHEN Weijiang, SUN Zhaoying, WANG Xianli, et al. Study on shunt gap lightning protection for 35 kV overhead transmission line[J]. Power System Technology, 2007, 31(2):61-65 |
