|
|
|
Abstract Contact failure caused by arc ablation of contact materials is the main cause of the electrical-lifespan deterioration for miniature circuit breakers (MCBs). The study of electrical-lifespan evaluation method of MCBs is of great significance for improving safety and reliability of electricity networks. Taking some MCBs with a rated current of 16A as the object of the electrical-lifespan test, this paper observed the process of arc motion happened between moving contact and fixed contact via a high-speed camera, and extracted the characteristic quantities reflecting the degradation process of the MCB electrical lifespan from the waveform of arc voltage. Besides, this paper investigated the corresponding relationship of the contact ablation with the accumulative arcing energy and voltage reducing time respectively, and built an electrical-lifespan evaluation model of MCBs with these two characteristic quantities. The results show that the voltage reducing time has a tendency to increase with the increase of the number of breaking. The model accuracy test by experimental data shows that the evaluation method is suitable for the situation of different currents, and the evaluation error is acceptable, which can be used to assess the electrical lifespan of MCBs.
|
|
Received: 14 June 2021
|
|
|
|
|
|
[1] 熊德智, 陈向群, 杨杰, 等. 微型断路器灭弧失效分析及性能优化设计[J]. 电工技术学报, 2019, 34(11): 2333-2341.
Xiong Dezhi, Chen Xiangqun, Yang Jie, et al.Arc extinguishing failure analysis and performance optimization design of miniature circuit breaker[J]. Transactions of China Electrotechnical Society, 2019, 34(11): 2333-2341.
[2] Lü Sen, Zong Ming, Yu Siyang.Design and analysis of a novel overload current estimation method for traditional miniature circuit breaker[J]. IET Electric Power Applications, 2020, 14(10): 1898-1905.
[3] Kawakami Y, Hasegawa M, Watanabe Y, et al.An investigation for the method of lifetime prediction of Ag-Ni contacts for electromagnetic contactor[C]// Proceedings of the Fifty-First IEEE Holm Conference on Electrical Contacts, Chicago, IL, USA, 2005: 151-155.
[4] Cui Xinglei, Zhou Xue, Zhai Guofu, et al.Electrical lifespan prediction of HVDC relay based on the accumulated arc erosion mass[J]. IEEE Transactions on Components, Packaging and Manufacturing Tech- nology, 2018, 8(3): 356-363.
[5] 郑淑梅, 李奎, 刘政君, 等. 基于触头电弧侵蚀的交流接触器电寿命分布特征研究[J]. 中国电机工程学报, 2017, 37(22): 6730-6739, 6786.
Zheng Shumei, Li Kui, Liu Zhengjun, et al.Research on distributional characteristic of electrical endurance of AC contactor based on arc erosion[J]. Proceedings of the CSEE, 2017, 37(22): 6730-6739, 6786.
[6] 翟国富, 王淑娟, 许峰, 等. 基于超程时间和吸合时间建模的继电器双变量寿命预测方法的研究[J]. 中国电机工程学报, 2002, 22(7): 76-80.
Zhai Guofu, Wang Shujuan, Xu Feng, et al.Research on double-variable life forecasting based on model- building of super-path time and pick-up time for relays[J]. Proceedings of the CSEE, 2002, 22(7): 76-80.
[7] 付饶, 梁慧敏, 叶雪荣, 等. 接触器触点超程分析及其退化状态的诊断[J]. 电工技术学报, 2020, 35(1): 125-133.
Fu Rao, Liang Huimin, Ye Xuerong, et al.Analysis of the contact overtravel of contactor and its degradation state evaluation[J]. Transactions of China Electro- technical Society, 2020, 35(1): 125-133.
[8] 李奎, 李晓倍, 郑淑梅, 等. 基于BP神经网络的交流接触器剩余电寿命预测[J]. 电工技术学报, 2017, 32(15): 120-127.
Li Kui, Li Xiaobei, Zheng Shumei, et al.Residual electrical life prediction for AC contactor based on BP neural network[J]. Transactions of China Elec- trotechnical Society, 2017, 32(15): 120-127.
[9] 李志刚, 刘伯颖, 李玲玲, 等. 基于小波包变换及RBF神经网络的继电器寿命预测[J]. 电工技术学报, 2015, 30(14): 233-240.
Li Zhigang, Liu Boying, Li Lingling, et al.Life prediction of relay based on wavelet packet transform and RBF neural network[J]. Transactions of China Electrotechnical Society, 2015, 30(14): 233-240.
[10] 李玲玲, 张士暖, 李志刚, 等. 基于粗糙集理论和生命初态信息的继电器寿命预测方法[J]. 电工技术学报, 2016, 31(18): 46-53.
Li Lingling, Zhang Shinuan, Li Zhigang, et al.The life prediction method of relay based on rough set theory and relay’s initial life information[J]. Transa- ctions of China Electrotechnical Society, 2016, 31(18): 46-53.
[11] 孙曙光, 王锐雄, 杜太行, 等. 基于粗糙集与证据理论的交流接触器预期电寿命预测[J]. 电工技术学报, 2020, 35(10): 2158-2169.
Sun Shuguang, Wang Ruixiong, Du Taihang, et al.Expected electrical life prediction of AC contactor based on rough set and evidence theory[J]. Transa- ctions of China Electrotechnical Society, 2020, 35(10): 2158-2169.
[12] 孙永奎, 张玉琢, 徐超凡, 等. 安全型继电器失效机理判别与寿命预测[J]. 交通运输工程学报, 2018, 18(3): 138-147.
Sun Yongkui, Zhang Yuzhuo, Xu Chaofan, et al.Failure mechanisms discrimination and life prediction of safety relay[J]. Journal of Traffic and Trans- portation Engineering, 2018, 18(3): 138-147.
[13] 赵书涛, 王波, 华回春, 等. 基于马尔科夫模型的直流断路器可靠性评估方法[J]. 电工技术学报, 2019, 34(增刊1): 126-132.
Zhao Shutao, Wang Bo, Hua Huichun, et al.Reliability evaluation method of DC circuit breaker based on Markov model[J]. Transactions of China Electrotechnical Society, 2019, 34(S1): 126-132.
[14] 付饶, 梁慧敏, 叶雪荣, 等. 接触器触点超程分析及其退化状态的诊断[J]. 电工技术学报, 2020, 35(1): 125-133.
Fu Rao, Liang Huimin, Ye Xuerong, et al.Analysis of the contact overtravel of contactor and its degradation state evaluation[J]. Transactions of China Electro- technical Society, 2020, 35(1): 125-133.
[15] Leung C H, Lee A.Electric contact materials and their erosion in automotive DC relays[C]//Proceedings of the 37th IEEE Holm Conference on Electrical Contacts, New York, 1991: 114-121.
[16] 曹启纯, 刘向军. 高压直流继电器电弧运动仿真分析与实验研究[J]. 电工技术学报, 2019, 34(22): 4699-4707.
Cao Qichun, Liu Xiangjun.Simulation analysis and experimental research on arc motion in high voltage DC relay[J]. Transactions of China Electrotechnical Society, 2019, 34(22): 4699-4707.
[17] 任帅, 宫鑫, 戴宏宇, 等. 百千安冲击电弧作用下纳米Al2O3掺杂对钨铜电极耐烧蚀性能的影响[J]. 电工技术学报, 2020, 35(9): 1880-1890.
Ren Shuai, Gong Xin, Dai Hongyu, et al.Effect of nano-Al2O3 doping on erosion resistance of tungsten- copper electrode under 100kA pulsed arc[J]. Transa- ctions of China Electrotechnical Society, 2020, 35(9): 1880-1890.
[18] Cui Xinglei, Zhou Xue, Zhai Guofu, et al.Evaporation erosion during the relay contact breaking process based on a simplified arc model[J]. Plasma Science and Technology, 2016, 18(5): 512-519.
[19] 付思, 曹云东, 李静, 等. 触头分离瞬间真空金属蒸气电弧形成过程的仿真[J]. 电工技术学报, 2020, 35(13): 2922-2931.
Fu Si, Cao Yundong, Li Jing, et al.Simulation researches on vacuum metal vapor arc formation at the initial moment of contact parting[J]. Transactions of China Electrotechnical Society, 2020, 35(13): 2922-2931.
[20] 刘帼巾, 李想, 王泽, 等. 基于Wiener过程电子式漏电断路器的剩余寿命预测[J]. 电工技术学报, 2022, 37(2): 528-536.
Liu Guojin, Li Xiang, Wang Ze, et al.Remaining life prediction of electronic residual current circuit breaker based on Wiener process[J]. Transactions of China Electrotechnical Society, 2022, 37(2): 528-536.
[21] 付思, 曹云东, 李静, 等. 真空金属蒸气电弧作用下阴极表面蚀坑形成过程[J]. 高电压技术, 2020, 46(3): 843-851.
Fu Si, Cao Yundong, Li Jing, et al.Formation of crater on cathode surface in vacuum metal vapor arc[J]. High Voltage Engineering, 2020, 46(3): 843-851.
[22] 向川, 黄智慧, 董华军, 等. 真空开关电弧对阳极加热作用的仿真研究[J]. 高电压技术, 2017, 43(12): 3929-3937.
Xiang Chuan, Huang Zhihui, Dong Huajun, et al.Simulation research of heating process in anode by vacuum arc[J]. High Voltage Engineering, 2017, 43(12): 3929-3937.
[23] 翟国富, 薄凯, 周学, 等. 直流大功率继电器电弧研究综述[J]. 电工技术学报, 2017, 32(22): 251-263.
Zhai Guofu, Bo Kai, Zhou Xue, et al.Investigation on breaking arc in DC high-power relay: a review[J]. Transactions of China Electrotechnical Society, 2017, 32(22): 251-263.
[24] 周红兵, 倪育强. 一种动触头安装结构、操作机构及小型断路器: 中国, 210200657U[P].2020-03-27. |
|
|
2022, Vol. 37 
