个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:电气工程学院
学科:电机与电器. 高电压与绝缘技术. 电力电子与电力传动
办公地点:大连理工大学电气工程学院电力电子研究所407
联系方式:mfliao@dlut.edu.cn
电子邮箱:mfliao@dlut.edu.cn
Research on Influence of the Magnetic Arc Blow in Multi-break Vacuum Circuit Breakers
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论文类型:会议论文
发表时间:2016-09-18
收录刊物:EI、CPCI-S、Scopus
卷号:2016-November
页面范围:197-200
摘要:The paper aims to investigate the influence of the interactive magnetic field in multi-break vacuum circuit breakers (VCBs) on the arc plasma and the post-arc characteristic. The magnetic field of multi-break VCBs is asymmetric and off-center because of the interactive magnetic field, which can be called bias magnetic field (BMF). The BMF distribution of double-break VCBs is gained by electromagnetic analysis. The test circuit of the magnetic arc blow in multi-break VCBs is established by simplifying as the interaction between the vacuum arc and the BMF. The influence of the magnetic arc blow on the arc plasma is studied by the high-speed CMOS while the relationship between the post-arc dynamic dielectric recovery and the magnetic arc blow is obtained by the measurement of the post-arc current. The results indicate that the influence of the magnetic arc blow on the vacuum arc and post-arc dynamic dielectric recovery with TMF contacts is larger than that of AMF contacts. The vacuum arc with TMF contacts bends to the opposite direction of Ampere force when the BMF is below 100mT and the post-arc charge obviously varies from 9 mu C to 50 mu C. Therefore, the paper can provide the base of construct and configuration to avoid the influence of the magnetic arc blow.