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Development of two-dimensional measurement method of gas density and gas property for DC arc established in high voltage fuse

Research Project

Project/Area Number 19K21037
Project/Area Number (Other) 18H05848 (2018)
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund (2019)
Single-year Grants (2018)
Review Section 0202:Condensed matter physics, plasma science, nuclear engineering, earth resources engineering, energy engineering, and related fields
Research InstitutionNagoya University

Principal Investigator

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

Project Period (FY) 2018-08-24 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsアーク / ヒューズ / 分光観測 / 空間分布 / 粒子密度 / 金属蒸気 / 分光 / プラズマ / 分光計測 / 開閉機器
Outline of Research at the Start

自動車用ヒューズ内部で点弧するアークの迅速な消弧には,アーク特性(粒子組成や導電率など)の空間分布を測定し,測定結果に基づいてアーク消弧性能の向上方法を検討する必要がある.しかしながら,アーク特性の二次元分布計測に有効な方法は未だ開発されていない.
本研究では,アーク温度や特性の二次元計測法の開発を主目的とする.アークの放射特性に着目し,理論計算と実験的計測の結果の両者を用いることでアークの温度や組成を間接的に計測する.計測結果を用いることでアークの導電率などの特性の二次元的な分布を推定する.
本研究を達成することでヒューズ内部アークの特性解明を進めると共に,アークの計測技術の向上を目指す.

Outline of Final Research Achievements

This study focused on development of a two-dimensional measurement system for gas number density and properties of DC arc established in a limiting fuse. In this study, we developed two-dimensional optical emission spectroscopy (OES) system to obtain two-dimensional distribution of specific spectral line of DC arc. In addition, we also carried out traditional zero-dimensional OES measurement to obtain an arc temperature and to evaluate copper vapor concentration in the DC arc with calculation of high temperature arc properties.
Results showed that high concentration of copper vapor can be maintained during DC interruption in the silica-sand filled space. This high copper vapor concentration may occur due to re-evaporation of fulgurite consist of SiO2 and Cu.

Academic Significance and Societal Importance of the Research Achievements

本研究では,直流遮断用の限流ヒューズにおいて高いアーク抵抗の維持が難しい原因を検討し,それがアーク中の高い銅蒸気濃度による可能性が高い知見を得た。また,高い銅蒸気濃度化の原因として,遮断過程でアーク周囲に形成されるフルグライト中に含まれる銅が再蒸発することによる可能性が高い知見が得られている。これは,限流ヒューズの高遮断容量化の指針を与える重要な成果であると考えられる。
また,本研究で開発された二次元分光観測システムは汎用性が高く,ヒューズ内部アーク以外の様々な放電・プラズマに対する二次元的な観測が可能である。この点でも,学術的意義が高いと言える。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • Research Products

    (8 results)

All 2020 2019 2018

All Presentation (8 results) (of which Int'l Joint Research: 4 results)

  • [Presentation] 珪砂中でのDC遮断時における アーク内の銅蒸気濃度に関する検討2020

    • Author(s)
      兒玉直人,横水康伸,中村晃也, 高橋明里,近藤祐介
    • Organizer
      令和2年電気学会全国大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Fundamental study on role of silica-sand and polymer cylinder in terms of gas properties during DC interruption2019

    • Author(s)
      Naoto Kodama, Yasunobu Yokomizu, Asato Takahashi, Koya Nakamura, Yusuke Kondo
    • Organizer
      XXXIV International Conference on Phenomena in Ionized Gases/10th International Conference on Reactive Plasmas (ICRP-10)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Approach to Mechanism Interpretation of Arc Voltage Rise by Polymer Cylinder Installation in Silica-Sand2019

    • Author(s)
      Naoto Kodama, Yasunobu Yokomizu, Koya Nakamura, Asato Takahashi, Yusuke Kondo
    • Organizer
      5th International Conference on Electric Power Equipment - Switching Technology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 珪砂中への円筒設置時における 直流アーク温度の測定とアーク電圧上昇機構の検討2019

    • Author(s)
      兒玉直人,横水康伸,中村晃也, 高橋明里,近藤祐介
    • 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
      2019 Annual Research Report
  • [Presentation] Arc voltage rise by cylinder arrangement in silica-sand filling space during DC arc interruption2019

    • Author(s)
      Naoto Kodama, Yasunobu Yokomizu, Koya Nakamura, Asato Takahashi, Yusuke Kondo
    • Organizer
      The 11th Asia-Pacific International Symposium on the Basics and Applications of Plasma Technology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 珪砂中へのPMMA円筒設置時における直流アーク抵抗上昇機構の検討2019

    • Author(s)
      兒玉直人,横水康伸,高橋明里,中村晃也,近藤祐介
    • Organizer
      平成31年電気学会全国大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 珪砂中へのPA66, PMMAおよびSi樹脂設置による直流アーク遮断時間の短縮-原子化エンタルピーからの解釈-2018

    • Author(s)
      兒玉直人,高橋明里,中村晃也,横水康伸,近藤祐介
    • Organizer
      電気・電子・情報関係学会東海支部連合大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Installation of PA66, PMMA or Si-resin cylinders in silica-sand for rising arc voltage during DC interruption2018

    • Author(s)
      Naoto Kodama, Asato Takahashi, Koya Nakamura, Yasunobu Yokomizu and Yusuke Kondo
    • Organizer
      International Workshop on High Voltage Engineering
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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Published: 2018-08-27   Modified: 2024-03-26  

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