Experimental Research on Vacuum Arc Current Commutation of Post Arc Current Measure Equipment

被引：0
|
作者：
Ge G. [1 ]
Cheng X. [1 ]
Xie W. [2 ]
Liao M. [3 ]
Wu Q. [1 ]
Duan X. [3 ]
机构：
[1] School of Electrical Engineering, Zhengzhou University, Zhengzhou
[2] State Grid Henan Electric Power Research Institute, Zhengzhou
[3] School of Electrical Engineering, Dalian University of Technology, Dalian
来源：
Gaodianya Jishu/High Voltage Engineering | 2019年 / 45卷 / 03期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Current commutation; Post-arc current; Shunt resistor; Vacuum arc; Vacuum circuit breaker;
D O I：
10.13336/j.1003-6520.hve.20190226036
中图分类号：
学科分类号：
摘要：
In order to ascertain the vacuum arc current commutation characteristics between the vacuum arc and the parallel-connected shunt resistor, we experimentally investigated the current commutation characteristics of the post arc current measure equipment (PACME). The test platform of the vacuum arc commutating characteristic between the vacuum circuit breaker and the parallel-connected shunt resistor was established. The influences of the current magnitude, resistance of the shunt resistor, and the arcing time on the current commutation characteristics such as the commutation time and current were researched. According to the data process and simplified analysis of the experimental results, the mathematic description of vacuum arc commutation characteristic was obtained. At last, the PACME based on the vacuum arc current commutation characteristic was tested in the synthetic test circuit. The post arc current of the vacuum circuit breakers was measured, and the influences of the superimposed current of the high voltage circuit and the magnetic arc blow on the test results were analyzed. The test results indicate that the vacuum arc current commutation can be finished 20 µs before the current zero, which verifies the validity of the results. In conclusion, the vacuum arc commutation characteristic is gained which is useful for the optimal design of the PACME. © 2019, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
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页码：950 / 958
页数：8
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