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Impact of Arc Voltage on Arcing Characteristics and Post-Arc Dielectric Recovery of DC Fuses During the Whole Interruption Process
ID：14 View Protection：ATTENDEE Updated Time：2026-03-23 16:38:09 Hits：51 Oral Presentation

Start Time：Pending（Asia/Shanghai）

Duration：Pending

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Abstract
DC fuses are critical for protecting electric vehicles, data centers, and energy storage systems. 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. This paper experimentally investigates a 200 V/30 A quartz sand-filled DC fuse. After current zero, a 1000 V pulsed DC voltage was applied using the Rabus method to measure post-arc dielectric recovery strength. Results show that average arc voltage is positively correlated with arcing energy: a 10 V increase raises arcing energy by approximately 0.139 J. Conversely, average arc voltage is negatively correlated with dielectric recovery strength at 10 ms, which decreases by about 21.7 V per 10 V increase. The average arc voltage reflects energy input during arcing, 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.

 
Keywords
DC fuse,arc voltage,post-arc,dielectric recovery,fulgurite
Speaker
Huixin Du
Student Xi'an Jiaotong University

Submission Author
Huixin Du Xi'an Jiaotong University
Bin Xiang Xi'an Jiaotong University
Dongyu Wang Xi'an Jiaotong University
Sifan Gao Xi'an Jiaotong University
Junkai Han Xi'an Jiaotong University
zhiyuan liu Xi'an Jiaotong University
Yingsan Geng Xi'an Jiaotong University
Jianhua Wang Xi'an Jiaotong University
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Important Date

  • Conference Date

    Oct 25

    2026

    to

    Oct 27

    2026

  • May 23 2026

    Draft paper submission deadline

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Xi’an Jiaotong University
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