Study and Application of the Multi-Gap for Gas Discharge
Li Xiangchao, Zhou Zhongshan, Chen Puyang, Li Pengfei, Chen Zehuang
Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration Nanjing University of Information Science and Technology Nanjing 210044 China
Abstract For solving the problems of high breakdown voltage and power-flow current in the gas discharge tube applied in lightning protection, a multi-gap model for gas discharge was constructed based on Townsend theory and Parson's law. Moreover, the breakdown voltage of the proposed model is β (β<1) times the breakdown voltage of the ordinary single gas discharge tube. The lighting current impacting experiment was carried on the multi-gap discharge tube. The conclusions can be drawn as follows. The breakdown voltage of the proposed model is 5 times less than that of the traditional gas discharge tube, and the response time can be shorten to 200ns. Furthermore, the rising rate of residual voltage can be reduced to 0.3kV·μs-1. Besides, the multi-gap gas discharge model can reduce or even remove the power-flow current within a certain range of lightning current.
Li Xiangchao,Zhou Zhongshan,Chen Puyang等. Study and Application of the Multi-Gap for Gas Discharge[J]. Transactions of China Electrotechnical Society, 2017, 32(2): 70-76.
[1] 詹花茂, 刘波, 颜廷利, 等. 操作冲击下空间电荷对间隙放电的影响[J]. 电工技术学报, 2014, 29(5): 213-218. Zhan Huamao, Liu Bo, Yan Tingli, et al. Influence of space charge on air gap discharge under switching impulse[J]. Transactions of China Electrotechnical Society, 2014, 29(5): 213-218. [2] 李清泉, 张伟政, 李彦明. 通信系统中的浪涌保护器的配合研究[J]. 电工技术学报, 2003, 18(4): 128-131. Li Qingquan, Zhang Weizheng, Li Yanming. Research on coordination of surge protective devices in communication system[J]. Transactions of China Electrotechnical Society. 2003, 18(4): 128-131. [3] 谢昌明, 谈效华, 杜涛, 等. 气体火花开关电极烧蚀形貌研究[J]. 电工技术学报, 2015, 30(20): 246- 251. Xie Changming, Tan Xiaohua, Du Tao, et al. Microstructure characteristics in electrodes of gas spark gap after erosion[J]. Transactions of China Electrotechnical Society, 2015, 30(20): 246-251. [4] 孙伟, 姚学玲, 陈景亮. 电极材料及间隙距离对间隙型浪涌保护器保护特性的影响[J]. 高压电器, 2011, 47(11): 35-39, 44. Sun Wei, Yao Xueling, Chen Jingliang. Effects of electrode materials and gap distance on protective characteristics of gap SPD[J]. High Voltage App- aratus, 2011, 47(11): 35-39, 44. [5] 黎步银, 赵俊, 周东祥, 等. 气体放电管直流击穿电压自动测试系统的研制[J]. 计量学报, 2005, 26(1): 74-76. Li Buyin, Zhao Jun, Zhou Dongxiang, et al. DC spark-over voltage auto-testing system for the arrester[J]. ACTA Metrologica Sinica, 2005, 26(1): 74-76. [6] 林盛强, 林宏, 王巨丰. 高速气流灭弧防雷间隙建弧模型的研究[J]. 电瓷避雷器, 2012(2): 57-61. Lin Shengqiang, Lin Hong, Wang Jufeng. Study on model of constructing arc about parallel gap lightning protection device with arc-extinguished by high- speed airflow[J]. Insulators and Surge Arresters, 2012(2): 57-61. [7] 姚学玲, 陈景亮, 孙伟. 空心阴极浪涌保护间隙放电特性的试验研究[J]. 高电压技术, 2007, 33(10): 25-27, 40. Yao Xueling, Chen Jingliang, Sun Wei. Experimental investigation of discharging characteristics of hollow cathode surge protective gap[J]. High Voltage Engineering, 2007, 33(10): 25-27, 40. [8] 杨大晟, 张小青. 交流电源用电涌保护器的实用简化电路[J]. 高电压技术, 2010, 36(8): 1989-1994. Yang Dacheng, Zhang Xiaoqing. Practical simplified circuit of lighting protective device installed on power lines[J]. High Voltage Engineering, 2010, 36(8): 1989-1994. [9] 李静, 曹云东, 邹积岩. 直流气体放电过程中的离子分子碰撞模型[J]. 高电压技术, 2009, 35(7): 1677-1682. Li Jing, Cao Yundong, Zou Jiyan, Ion-molecude collision modeling in direct current gas discharge[J]. High Voltage Engineering, 2009, 35(7): 1677-1682. [10] 颜湘莲, 王承玉, 季严松, 等. 气体绝缘设备中SF 6 气体分解产物与设备故障关系的建模[J]. 电工技术学报, 2015, 30(22): 231-238. Yan Xianglian, Wang Chengyu, Ji Yansong, et al. Modeling of the relation between SF 6 decomposition products and interior faults in gas insulated equipment[J]. Transactions of China Electrotechnical Society, 2015, 30(22): 231-238. [11] 刘路辉, 庄劲武, 王晨, 等. 燃弧时间对混合型直流真空断路器分断特性的影响[J]. 电工技术学报, 2015, 30(24): 55-60. Liu Luhui, Zhuang Jinwu, Wang Chen, et al. Effect of arcing time upon the interruption characteristic of the hybrid DC vacuum circuit breaker[J]. 2015, 30(24): 55-60. [12] 司瑞琦, 黄翰, 罗建, 等. 基于消弧线圈补偿特征的故障选线新方法[J]. 电力系统保护与控制, 2014, 42(23): 16-22. Si Ruiqi, Huang Han, Luo Jian, et al. Fault line selection approach based on compensation characte- ristics of extinction coil[J]. Power System Protection and Control, 2014, 42(23): 16-22. [13] Slepian J. The extinction of a long A-C arc[J]. Transactions of the American Institute of Electrical Engineers, 1930, 49(2): 421-430. [14] 陈搏, 庄劲武, 肖翼洋, 等. 基于半经验模型的高压限流熔断器电弧特性的计算与分析[J]. 高电压技术, 2014, 40(1): 282-287. Chen Bo, Zhuang Jinwu, Xiao Yiyang, et al. Calculation and analysis of high-voltage current- limiting fuse’s arc characteristics based on semi- empirical model[J]. High Voltage Engineering, 2014, 40(1): 282-287. [15] Browne T E. An approach to mathematical analysis or A-C arc extinction in circuit breakers[J]. Power Apparatus & Systems, Part III Transactions of the American Institute of Electrical Engineers, 1958, 77(3): 1508-1514. [16] Bizjia M, Pregelj A, Brecelj F, et al. Breaking of follow currents by gas discharge tube in overvoltage protection[J]. Industrial Technology, 2003, 2(2): 657-662. [17] 王其平. 电器电弧理论[M]. 西安: 机械工业出版社, 1991. [18] 胡孝勇. 气体放电及其等离子体[M]. 哈尔滨: 哈尔滨大学出版社, 1994. [19] 杨津基. 气体放电[M]. 北京: 科学出版社, 1983. [20] 李祥超, 赵学余, 姜长稷, 等. 电涌保护器（SPD）原理与应用[M]. 北京: 气象出版社, 2010.
2017, Vol. 32 
