报告详情
Impacts of Arc Voltage on Arcing and Post-Arc Dielectric Recovery Characteristics of DC Fuses
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更新：2026-06-15 14:47:45 浏览：69次
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摘要
In DC microgrids, quartz-sand-filled current-limiting fuses serve as critical backup protection devices, and their interruption reliability directly affects system safety. Whether the fuse can withstand transient recovery voltage without dielectric breakdown after current zero determines interruption success, yet the post-arc recovery mechanism and its relationship with arcing characteristics remain unclear. The aim of this study is to investigate the influence of arc voltage on arcing and post-arc dielectric recovery characteristics of DC fuses. Experimental studies were carried out on a 20 A quartz-sand-filled DC fuse using R L C oscillatory discharge and the Rabus method. The results show that both arcing energy and post arc dielectric recovery time increase linearly with average arc voltage. For every 10 V rise in average voltage, arcing energy increases by about 15.3 J and recovery time by about 0.95 ms. The average arc voltage reflects energy input during the arcing stage, influencing fulgurite dimensions and initial post-arc temperature, thus determining recovery strength. This study quantifies the correlation between arcing and post-arc processes, providing experimental evidence for understanding post-arc mechanisms and optimizing DC fuse performance.
关键词
Electric fuse,post-arc stage,dielectric recovery
报告人
Huixin Du
PhD Student Xi'an Jiaotong University稿件作者
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重要日期
-
会议日期
10月25日
2026
至10月27日
2026
-
09月15日 2026
初稿截稿日期
主办单位
Xi’an Jiaotong University
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