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Influences of PA66 and PTFE Fillers on the Interruption Performance of DC Fuses under Overload Conditions
ID：2 View Protection：ATTENDEE Updated Time：2026-03-23 16:15:14 Hits：41 Oral Presentation

Start Time：Pending（Asia/Shanghai）

Duration：Pending

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Abstract
DC fuses are widely used in various DC power transmission and distribution scenarios. They are filled with arc-extinguishing material, silica sand, which can quickly wrap and cool the arc, but they have the defect of long overload breaking time. The purpose of this study is to improve the overload breaking capacity of DC fuses and shorten the breaking time under small current conditions. Two organic materials, PA66 and PTFE, were selected and made into arc-extinguishing fillers at mass fractions of 5%, 10%, and 15%. Pure silica sand was used as the control group, and they were respectively filled into the device that can simulate DC fuses to conduct breaking tests under power supply voltages of 100, 150, and 200V. The results show that using 5% PA66 can shorten the breaking time of 100V power supply voltage and 2700A expected current to 17.5ms, which is 48.6% of the breaking time of pure silica sand. However, using PA66 is not conducive to the breaking of large currents. Therefore, it is comprehensively considered that the filling material of 5% PA66 has the best effect. This study is helpful to screen out the appropriate filling ratio of DC fuses and promote the improvement of overload breaking performance of DC fuses.
Keywords
DC fuse,fuse filler,Overload protection,ARC
Speaker
Bin Xiang
副教授 西安交通大学

Submission Author
Dongyu Wang 西安交通大学
Bin Xiang 西安交通大学
Huixin Du Xi'an Jiaotong University
Sifan Gao Xi'an Jiaotong University
Junkai Han School of Electrical Engineering； Xi 'an Jiaotong University
zhiyuan liu Xi’an Jiaotong University；State Key Laboratory of Electric Power Equipment
Yingsan Geng Xi’an Jiaotong University；State Key Laboratory of Electric Power Equipment
Jianhua Wang Xi'an Jiaotong University
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Important Date

  • Conference Date

    Oct 25

    2026

    to

    Oct 27

    2026

  • Jul 29 2026

    Draft paper submission deadline

Sponsored By
Xi’an Jiaotong University
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