An Improved Designing Method of Metal Oxide Arrester Impulse Test Circuit Parameter
Yuan Haiyan1, Wu Jianqiang2, Fu Zhengcai1, Chen Jian1, Sun Wei1
1. Key Lab of Control of Power Transmission and Conversion Shanghai Jiao Tong University Shanghai 200240 China 2. Jinhua Lighting Protection Center Jinhua 321000 China
Abstract：When impulse current test is implemented for the lightning arrester, the circuit resistance changes in nonlinear characteristics, and its values under high and low current are differentiated greatly, so it is difficult to accurately estimate the output wave parameters. Through analyzing the impact of nonlinear EUT on the test circuit output waveform, an improved design method of test circuit for nonlinear EUT is proposed. The main idea is to design the circuit parameters in under-damping condition according to the EUT characteristics, charging capacitance and the applied impulse current parameters. Then the proposed method is compared with the previous method which is based on the critical damping condition. The advantage of this method compared to the previous is that it can provide an accurate range for the wave-adjusting resistance in fixed main capacitance. In the wave adjusting process, only the wave-adjusting resistance needs to be adjusted, which not only simplifies the wave adjusting process, but also improves the rate of successful wave adjusting. Finally, practical test is implemented to validate the rationality and practicability of the proposed method.
袁海燕, 吴剑强, 傅正财, 陈坚, 孙伟. 一种改进的避雷器冲击电流试验回路参数设计方法[J]. 电工技术学报, 2011, 26(11): 210-216.
Yuan Haiyan, Wu Jianqiang, Fu Zhengcai, Chen Jian, Sun Wei. An Improved Designing Method of Metal Oxide Arrester Impulse Test Circuit Parameter. Transactions of China Electrotechnical Society, 2011, 26(11): 210-216.
[1] Sobocki R. Function representation of lightning impulses produced by a testing circuit with continuity of voltages and currents at a tested object[J]. IEE Proceedings A, Science, Measurement and Technology, 1991, 138(1): 78-82. [2] Arias H J. A linear relationship between the time constants ratio of an impulse generator and the virtual times ratio of its output waveform[J]. IEEE Transactions Power Delivery, 2008, 23(2): 1264-1265. [3] Lorthongkam C, Thomrongtappitak C. Design of impulse high-current generator using the IMC simulation program[C]. Proceedings of the International Conference on Power System Technology, 2000, 2: 631-635. [4] Yutthagowith P, Pattanadech N. A program for design of impulse current generator circuits[C]. Proceedings of the International Conference on Condition Monitoring and Diagnosis, Beijing, 2008: 830-833. [5] Sheehy R, Yi Li. An impulse voltage calibrator of low output impedance[J]. IEEE Transactions on Power Delivery, 2005, 20(1): 15-22. [6] 陈文缄, 孙伟. 冲击电流发生器回路参数的确定[J]. 高电压技术, 1990, 16(3): 39-40. [7] 刘亮, 张贵新, 罗承沐. 冲击波形发生电路设计方法的改进[J]. 电工技术学报, 2007, 22(5): 6-12. [8] GB 11032—1989. 交流无间隙金属氧化物避雷器[S]. 1990. [9] YD 5098—2005. 通信局(站)防雷与接地工程设计规范[S]. 2006. [10] 过增元. 电弧和热等离子体[M]. 北京:科学出版社, 1986. [11] 钱平凯. 热力学与统计物理[M]. 北京:电子工业出版社, 1991. [12] 谭幼谦．含阀电阻的冲击电流发生器回路参数及波形计算[J]. 高电压技术, 1984, 10(1): 10-15. [13] Hillhouse D L. Circuit for impulse testing of gas-tube lightning arresters[J]. IEEE Transactions on Communi- cations, 1972, 20(5): 936-941. [14] 陈景亮, 姚学玲. 压敏电阻限制电压测试回路参数的仿真计算[J]. 高电压技术, 2002, 28(12): 11-13. [15] 姚学玲, 陈景亮, 孙伟. 非线性被试品冲击电流发生回路的研究[J]. 高压电器, 2005, 41(6): 412-419. [16] 文远芳. 高电压技术[M]. 武汉: 华中科技大学出版社, 2005.
2011, Vol. 26 
