Investigation on the Vacuum Arc Current Commutation Criteria of the Low Voltage DC Hybrid Circuit Breaker

被引：0
|
作者：
Ge G. [1 ]
Cheng X. [1 ]
Wang H. [1 ]
Xie W. [2 ]
Huang J. [3 ]
机构：
[1] College of Electrical Engineering, Zhengzhou University, Zhengzhou
[2] State Grid Henan Electric Power Research Institute, Zhengzhou
[3] College of Electrical Engineering, Dalian University of Technology, Dalian
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2019年 / 34卷 / 19期
关键词：
Commutation criteria; Current commutation characteristic; Low voltage DC hybrid circuit breaker; Vacuum arc;
D O I：
10.19595/j.cnki.1000-6753.tces.180751
中图分类号：
学科分类号：
摘要：
The vacuum arc current commutation characteristic plays an important role on breaking process of the low voltage DC hybrid circuit breaker (HCB). In order to gain the current commutation characteristic and the criteria, the structure and principle of the DC HCB is analyzed and the simplified circuit of the current commutation is proposed. The test circuit of the vacuum arc currentcommutation is set up. The vacuum arc development is observed by the high speed CMOS camera and the influence of the main current, commutation circuit parameters and arcing time on the current commutation is investigated. Based on the test results, the vacuum arc current commutation characteristic and criteria is obtained and the modified criteria are conducted. The breaking test of the 400V/5kA DC HCB is conducted, which also verifies the effectiveness of the criteria. The paper provides the reference of the high performance DC HCB. © 2019, Electrical Technology Press Co. Ltd. All right reserved.
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页码：4038 / 4047
页数：9
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