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Development of DC arc interruption method using polymer and silica sand for high interrupting capacity of DC fuses

Research Project

Project/Area Number 21K14141
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 21010:Power engineering-related
Research InstitutionNagoya University

Principal Investigator

Kodama Naoto  名古屋大学, 工学研究科, 助教 (80828971)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsアーク / ヒューズ / 消弧媒体 / 熱プラズマ / 限流ヒューズ / 直流遮断 / 珪砂 / 高分子材
Outline of Research at the Start

本研究では,従来からヒューズ内部のアーク消弧媒体として用いられてきた珪砂(SiO2)に加えて,高分子材料を新たに用いる。アークと固体高分子材の接触・溶発を利用することで,(1)電流路の強制的な収縮によるアーク抵抗の増加,(2)高分子蒸気によるアークの拡散,の2つの効果を融合させた革新的な小型・軽量・高遮断容量のDCヒューズを実現させる。

Outline of Final Research Achievements

The present study investigated a new current-limiting interrupting method for arc discharges formed in current-limiting fuses. A simulated fuse with a narrow part made of light-curing resin was designed and used for quenching of the arc discharges. As a result of the experiment, compared to silica sand which has been conventionally used as an arc quenching medium for current-limiting fuses, the new method successfully increased arc resistance during the arc quenching process and shortened the arc quenching time. The reason for the increase in arc resistance in this method was examined by simulating the gas characteristics of the arc. As a result, it was found that the electrical resistivity and heat dissipation of the arc increased due to the polymer vapor mixing into the arc, and as a result, the arc resistance increased.

Academic Significance and Societal Importance of the Research Achievements

本研究の結果、数十年間の間、限流ヒューズのアーク消弧媒体として用いられてきた珪砂に加えて、高分子材で作成した狭隘部とアークの物理的な接触および溶発によるアークの物性の変化を利用することで、限流ヒューズのアーク遮断容量の更なる高容量化が見込めることが判明した。本成果は、再生可能エネルギーの導入において必須となる直流系統の実現と保護に対して資する成果となっている。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (8 results)

All 2024 2023 2022 2021

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] DC Arc Quenching Using Ablation of Polymer Narrow‐Section Arranged around Fuse Element2023

    • Author(s)
      Kodama Naoto、Yokomizu Yasunobu、Takenaka Waku、Iwata Mikimasa、Danish M. S. S.
    • Journal Title

      IEEJ Transactions on Electrical and Electronic Engineering

      Volume: 18 Issue: 11 Pages: 1837-1844

    • DOI

      10.1002/tee.23911

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Presentation] Development of Electrical Circuit Protection Device Based on Gas Properties Analysis of High-Temperature Arc and Hot Gas2024

    • Author(s)
      Naoto Kodama
    • Organizer
      ISPlasma2024/IC-PLANTS2024/APSPT13
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 限流ヒューズ内で生成される高温Cu/SiO2混合蒸気の臨界換算電界2023

    • Author(s)
      兒玉 直人,中村哉太,横水康伸,竹中湧,岩田幹正
    • Organizer
      令和5年 電気学会 電力・エネルギー部門大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ヒューズ内発生する高温Cu/SiO2混合ガスに対する臨界換算電界の決定要因ー温度3000-5000 Kー2023

    • Author(s)
      兒玉 直人,中村哉太,横水康伸,竹中湧,岩田幹正
    • Organizer
      電気学会 放電・プラズマ・パルスパワー/開閉保護/高電圧合同研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ヒューズエレメント周囲に配置した高分子材の溶発を用いたDCアーク消弧実験2022

    • Author(s)
      兒玉直人,横水康伸,竹中湧,中村哉太,岩田幹正,M.S.S. Danish
    • Organizer
      令和4年度電気・電子・情報関係学会東海支部連合大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Experiment on DC Arc Quenching using Ablation of Polymer Narrow-Section Arranged around Fuse-Element2022

    • Author(s)
      Naoto Kodama, Yasunobu Yokomizu, Waku Takenaka , Kanata Nakamura, Shinsuke Tozaki, Mikimasa Iwata, and M. S. S. Danish
    • Organizer
      International Workshop on High Voltage Engineering 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] DC Arc Interruption Experiment using Arrangement of Polymer-Narrow Section inside Fuse-Case Filled with Silica-Sand2022

    • Author(s)
      Naoto Kodama, Yasunobu Yokomizu, and Waku Takenaka
    • Organizer
      ICEPE-ST 2022
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 珪砂を用いた直流アーク消弧過程で生じる高温ガスの特性2021

    • Author(s)
      兒玉直人,横水康伸,中村晃也,竹中湧,他
    • Organizer
      放電・プラズマ・パルスパワー/開閉保護/高電圧合同研究会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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