New Measurement System for Dielectric Recovery after Arc Extinction

doi:10.16628/j.cnki.2095-8188.2020.08.009

Abstract

Abstract:

The accurate measurement of the dielectric recovery characteristics of the circuit breaker after arc extinction can provide the basis for its breaking performance research and self optimization design.However,most of the existing devices and methods for measuring the dielectric recovery characteristics of circuit breakers adopt single point measurement or multi-point measurement methods with uncontrollable pulse energy.Correspondingly,it is difficult to avoid the influence of the randomness of arc ignition on the dielectric recovery characteristics during the interruption process,or to avoid the impact of external pulse voltage on the dielectric recovery characteristics.There is a lack of multi-point testing technology and equipment with controllable single pulse energy.A new nanosecondmethod for measuring the dielectric recovery characteristics after arc extinction was proposed.According to this method,a nanosecond pulse device for measuring the dielectric recovery strength was designed and manufactured.The device has the following characteristics,80 ns leading edge,230 ns pulse width,max 10 kV amplitude,max 500 kHz frequency,max 8 mJ single pulse energy.The feasibility of the device is verified by breaking experiment,it can provide a more accurate and controllable quantitative analysis method for dielectric recovery measurement of lowvoltage electrical apparatus.

Key words: dielectric recovery, breaking performance, energy injection, nanosecond pulse

CLC Number:

TM561

ZHANG Zongqin, ZHAI Xiaoshe, AN Ping. New Measurement System for Dielectric Recovery after Arc Extinction[J]. LOW VOLTAGE APPARATUS, 2020, 593(8): 45-51.

Figures/Tables 14

References 7

[1]	王学军, 陈德桂. 接触器弧隙介质恢复强度的测试研究[J]. 低压电器, 1997(1):7-11.
[2]	MATSUO T, FUJIMORI H, YANABU S, et al. Insulation recovery characteristics after current interruption by various vacuum interrupter electrodes[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2006,13(1):10-17. doi: 10.1109/TDEI.2006.1593396
[3]	RICH J A, FARRALL G A. Vacuum arc recovery phenomena[J]. Proceedings of the IEEE, 1964,52(11):1293-1301. doi: 10.1109/PROC.1964.3365
[4]	N.C.TaeB, 尚振球. 电器中介质恢复强度的测量[J]. 低压电器, 1981(1):56-57.
[5]	BLUHM H. 脉冲功率技术的原理与应用[M]. 北京: 清华大学出版社, 2008.
[6]	谢敏, 马成刚, 丁伯南, 等. 用磁开关产生重复频率多路同步高压脉冲[J]. 强激光与粒子束, 2003,15(6):621-624.
[7]	ROGUSKI A T. Experimental investigation of the dielectric recovery strength between the separating contacts of vacuum circuit breakers[J]. IEEE Transactions on Power Delivery, 1989,4(2):1063-1069. doi: 10.1109/61.25587

序号	参数	数值
1	输出电压范围/kV	1~10(连续可调)
2	脉冲上升时间/ns	80
3	脉冲宽度/ns	230
4	测试脉冲频率/kHz	1~500
5	输出能量/mJ	0~8

[1]	ZHANG Haigen, SHU Liang, YOU Yingmin, CHEN Chong, HONG Bangguang. Research and Implementation of Key Technology of Air Circuit Breaker Electronic Controller [J]. LOW VOLTAGE APPARATUS, 2020, 593(8): 23-28.
[2]	LIU Yongqing, WU Xiaozhao, DU Lianjie, SHAO Zhifeng. Analysis and Calculation Method of Closing Power and Closing Speed of Circuit Breaker [J]. LOW VOLTAGE APPARATUS, 2020, 593(8): 29-32.
[3]	ZHANG Guangzhi, JIANG Guping, DING Fei. Design of Backup Protection Electromagnet for Electronic Moulded Case Circuit Breaker [J]. LOW VOLTAGE APPARATUS, 2020, 593(8): 39-44.
[4]	SONG Yubo, MA Shaohua. Locomotive Main Circuit Breaker Energy Storage Capacitor Constant Current Charging Control [J]. LOW VOLTAGE APPARATUS, 2020, 592(7): 42-45.
[5]	ZHANG Yan, WANG Yang. Discussion on Short Conductor Series Connection Structure of DC Moulded Case Circuit Breaker [J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 589(4): 38-41.
[6]	TANG Ting, WANG Taiyu, XU Pengsheng, XIE Lingfeng. Study on Operation Mechanism and Stress Analysis of MCCB [J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 589(4): 47-53.
[7]	ZHANG Guangzhi, YIN Jiacan, ZHAO Peng, WANG Wanlu. Simulating Calculation of Short-Circuit Dynamic Stability for Air Circuit Breaker [J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 589(4): 54-61.
[8]	MA Longtao, DAI Minglei. Research on Fatigue Life Simulation of Operation Mechanism of Molded Case Circuit Breaker [J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 588(3): 8-13.
[9]	JIANG Guping, DING Fei, CAO Jian. Study on Short Circuit Breaking Capacity of Small Size Two-Breakers Moulded Case Circuit Breaker [J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 588(3): 50-54.
[10]	HU Gang. Test Analysis of Single Break Moulded Case Circuit Breaker in UL 489 High Fault Current Test [J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 588(3): 59-62.
[11]	ZHOU Dajun. Analysis of Arcing Due to Internal Fault Test in Low Voltage Switchgear [J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 588(3): 88-91.
[12]	ZHANG Yingying, SHEN Haiying. Research on Qualification Test of Moulded Case Circuit Breaker in American Naval Ships [J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 588(3): 92-96.
[13]	YANG Yizheng, YANG Wenxue, YANG Yuan, LI Huimin. Study on Effect of Arc Stagnation Time on AC Circuit Lifetime Performance [J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 587(2): 15-19.