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Study of repeated breakdown properties of nitrogen gas and the optimal condition for use of the alternative insulating gas to SF_6

Research Project

Project/Area Number 17360131
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 電力工学・電気機器工学
Research InstitutionMusashi Institute of Technology

Principal Investigator

YUMOTO Motoshige  Musashi Institute of Technology, Department of Engineering, Professor, 工学部, 教授 (10120867)

Co-Investigator(Kenkyū-buntansha) ONO Shigeru  Musashi Institute of Technology, Department of Engineering, Professor, 工学部, 教授 (80097170)
IWAO Toru  Musashi Institute of Technology, Department of Engineering, Lecturer, 工学部, 講師 (80386359)
Project Period (FY) 2005 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥14,200,000 (Direct Cost: ¥14,200,000)
Fiscal Year 2006: ¥4,500,000 (Direct Cost: ¥4,500,000)
Fiscal Year 2005: ¥9,700,000 (Direct Cost: ¥9,700,000)
KeywordsNitrogen / Active species / Repeated Breakdown / Primary electron / Delay time of breakdown / De-activation / Electron attachment / Work function / 繰返し絶縁破壊 / 寿命 / 破壊確率 / 破壊遅れ時間 / 高気圧
Research Abstract

Nitrogen gas is expected to be used as the alternative gas of SF_6. However, nitrogen molecule has many meta-stable states which potential energy is high and its life time is very long. Accordingly, there is anxious to affect the breakdown properties by accumulation of those activated species.
The purpose of this research is to clear the influence on the breakdown characteristics under accumulation of activated species and to search the optimum condition to use nitrogen gas as the alternative gas of SF_6.
Breakdown probability and the delay time of breakdown were measured in enclosed vessel under high pressure up to 1.0 MPa. Some electrodes which work function was different from each other, were used for comparing the effect of activated species. The results showed that the influence was observed after the previous breakdown and its influence was observed when the electrode with low work function was used. From the results it was confirmed that the neutral activated species accumulated in the space affect the following breakdown properties up to 60s.
To reduce the bad effect of the previous breakdown, small amount of NO or CO_2 was mixed in nitrogen. NO and CO_2 has a large cross section to de-excite nitrogen meta-stable states. The results showed that the influence was decreased less than 15s in case of NO mixture. However, its effect is not enough for the practical use. Then, small amount of SF_6 was mixed to attach electrons which introduce the breakdown. However, the results were similar to that of NO mixture. It is necessary to study further to use nitrogen gas as the alternating gas.

Report

(3 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • Research Products

    (18 results)

All 2007 2006 2005 Other

All Journal Article (18 results)

  • [Journal Article] Repression of primary electrons by mixing the NO or SF_6 with N_2 under high pressure2007

    • Author(s)
      Y.Kuroki, M.Yumoto
    • Journal Title

      IEE of Japan Trans. B (Submitted)

    • NAID

      10019978629

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Influence of de-excitation of nitrogen neutral active species on breakdown characteristics by NO and SF_6 mixture in nitrogen2007

    • Author(s)
      F.Kobayashi, T.Iwao, M.Yumoto
    • Journal Title

      Proc.15^<th> Intern.Symp.High Voltage Engineering

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Influence of Repeatedly Discharge for Breakdown Characteristics in Compressed Nitrogen Gas2006

    • Author(s)
      Y.Kuroki, T.Iwao, M.Yumoto
    • Journal Title

      Pro. 16^<th> Intern. Conf. Gas Discharges and their Applications 1

      Pages: 584-587

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Influence of repeatedly discharge for breakdown characteristics in compressed nitrogen gas2006

    • Author(s)
      Y.Kuroki, M.Yumoto
    • Journal Title

      Proc.16^<th> Intern.Conf.Gas Discharges and their Applications Vol1

      Pages: 333-336

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Dependence of Accelerating Voltage on Surface Hardness of PMMA by Low Energy Nitrogen Ion2006

    • Author(s)
      T.Masaki, M.Arai, T.Iwao, M.Yumoto
    • Journal Title

      Proc.22^<nd> Intern.Symp.Discharges and Electrical Insulation in Vacuum 1

      Pages: 584-587

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 高気圧窒素中での繰り返し放電による遅れ時間の変化2006

    • Author(s)
      黒木 雄太, 岩尾 徹, 湯本 雅恵
    • Journal Title

      電気学会 放電研究会資料 ED-06-16

      Pages: 89-94

    • NAID

      10016967759

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 密閉容器中における窒素の絶縁破壊特性に及ぼす中性活性種の影響2005

    • Author(s)
      村上 典央, 湯本 雅恵
    • Journal Title

      電気学会論文誌 A 125・10

      Pages: 846-847

    • NAID

      130000085505

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Influence of Repeatedly Discharge for Breakdown Characteristics in Compressed Nitrogen Gas2005

    • Author(s)
      Y.Kuroki, T.Iwao, M.Yumoto
    • Journal Title

      Proc. 2005 Korea-Japan Joint Symp. Electrical Discharge and High Voltage Engineering 1

      Pages: 28-31

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Influence of neutral active species on breakdown characteristics in closed space2005

    • Author(s)
      N.Murakami, M.Yumoto
    • Journal Title

      IEE of Japan Trans.A Vol.125,No.10

      Pages: 846-847

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Influence of repeatedly discharge for breakdown characteristics in compressed nitrogen gas2005

    • Author(s)
      Y.Kuroki, T.Iwao, M.Yumoto
    • Journal Title

      Proc.2005 Korea-Japan Joint Symo.Electrical Discharge and High Voltage Engineering

      Pages: 89-94

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 密閉容器中における窒素の絶縁破壊特性に及ぼす中性活性種の影響2005

    • Author(s)
      村上 典夫, 湯本 雅恵
    • Journal Title

      電気学会論文誌A 125・10

      Pages: 846-847

    • NAID

      130000085505

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Influence of Repeatedly Discharge for Breakdown Characteristics in Compressed Nitrogen Gas2005

    • Author(s)
      Y.Kuroki, T.Iwao, M.Yumoto
    • Journal Title

      Proceedings of 2005 Korea-Japan Joint Symposium on Electrical Discharge and High Voltage Engineering

      Pages: 28-31

    • Related Report
      2005 Annual Research Report
  • [Journal Article] PTFE表面改質時の極性基導入過程における窒素イオンの効果2005

    • Author(s)
      石丸 陽介, 岩尾 徹, 湯本 雅恵
    • Journal Title

      電気学会 放電研究会資料 ED-05-146

      Pages: 19-24

    • NAID

      10016961129

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Dose Dependence of Surface Hardness by Low Energy Ion Irradiation on PMMA2005

    • Author(s)
      M.Arai, E.Hatsugai, N.Hamamura, T.Iwao, M.Yumoto
    • Journal Title

      Proceedings of 17^<th> International Symposium on Plasma Chemistry

      Pages: 677-678

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Introduction of Cross-linking Structure on Modified PMMA by using Low Energy Ion Irradiation2005

    • Author(s)
      E.Hatsugai, Marai, T.Iwao, N.Hammamura, M.Yumoto
    • Journal Title

      Proceedings of 17^<th> International Symposium on Plasma Chemistry

      Pages: 702-703

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 高気圧窒素ガスにおけるNO,SF_6ガス混合による初期電子抑制

    • Author(s)
      黒木 雄太, 湯本 雅恵
    • Journal Title

      電気学会論文誌 B 掲載確定

    • NAID

      10019978629

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Influence of De-excitation of Nitrogen Neutral Active Species on Breakdown Characteristics by NO and SF6 Mixture in Nitrogen

    • Author(s)
      F.Kobayashi, T.Iwao, M.Yumoto
    • Journal Title

      Proc.15^<th> Intern.Symp.High Voltage Engineering 掲載確定

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Analysis of Surface Hardness Improvement by Using Ion and Electron Irradiation

    • Author(s)
      T.Masaki, T.Iwao, M.Yumoto
    • Journal Title

      Proc.18^<th> Intern.Symp.Plasma Chemistry 掲載確定

    • Related Report
      2006 Annual Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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