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Study on Controlled Water Tree Degradation in Power Cable

Research Project

Project/Area Number 13650303
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 電力工学・電気機器工学
Research InstitutionTOYOHASHI UNIVERSITY OF TECHNOLOGY

Principal Investigator

NAGAO Masayuki  Toyohashi University of Technology Faculty of Engineering, Professor, 工学部, 教授 (30115612)

Co-Investigator(Kenkyū-buntansha) MURAMOTO Yuji  Toyohashi University of Technology Faculty of Engineering, Research Associate, 大学院・工学研究科, 助手 (70273331)
HOZUMI Naohiro  Toyohashi University of Technology Faculty of Engineering, Associate Professor, 工学部, 助教授 (30314090)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2002: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2001: ¥2,500,000 (Direct Cost: ¥2,500,000)
Keywordspower cable / water tree / teeing phenomena / space charge / degradation
Research Abstract

Water treeing is one of the major degradation mechanisms of power cable with polymeric insulation evolving in the presence of an ac field and of water. Water tree retardant characteristics of polyethylene (PE) were investigated. We were measuring dc leakage currents, observing tree shapes and analyzing aging time dependence of tree numbers and length distribution. It seems to be more different for water trees to redevelop in PE. Here, it is considered that pendent silane plays role of water tree retardant. The condensed silanol groups among PE molecules might act as obstruction to water initiation and growth. From these results, the silanol groups in PE are expected to suppress the water tree degradation. The lengths of water tree decreased with the increase in the amount of HDPE up to 9.1wt%. High crytallinity would suppress the water tree that is believed to grow through amorphous rich region. Water trapping at interface on HDPE cluster would also affect the water tree retardation.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (27 results)

All Other

All Publications (27 results)

  • [Publications] 藤井 雅之: "絶縁破壊に近い交流高電界領域における高分子材料の充電電流増加に対する考察"電気学会論文誌A. 121・6. 573-579 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 藤井 雅之: "交流高電界下における高分子フィルムの静電容量変化にもとづく空間電荷挙動の検討"電気学会論文誌A. 121・7. 689-698 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] K.Oda: "Tree Growth in Epoxy with Different Shapes of Filler"Proceedings of 2001 Japan-Korea Joint Symposium on ED & HVE. 1. 341-344 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Fujii: "Numerical Analysis of Space Charge Distribution in Polypropylene Film under AC High Field"Proceedings of 2001 ISEIM. 1. 156-159 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] V.H.Thanh: "Water Tree Retardant Characteristics of Silane Crosslinked Polyethylene"Proceedings of 2001 ISEIM. 1. 467-470 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Nagao: "Effect of Filler on Treeing Phenomenon in Epoxy Resin under AC Voltage"Proceedings of 2001 ISEIM. 1. 611-614 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 西岡幸治: "エポキシ樹脂の交流トリーイング特性に及ぼす充填剤の影響(II)"電気学会放電・誘電・絶縁材料共同研究会. DEI-01-96. 7-10 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Nagao: "Effect of Moisture on Treeing Phenomenon in Epoxy Resin with Filler under AC Voltage"2002 IEEE Annual Report CEDIP (02CH37372). 1. 951-954 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 西岡幸治: "充填剤配合エポキシ樹脂の交流トリーイング特性に及ぼす吸水の影響"電気学会放電・誘電・絶縁材料共同研究会. DEI-02-64. 25-28 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] FUJII Masayuki: "Study on the Increment of Charging Current of Polymer Film in AC High-Field Region near Breakdown"T.IEE Japan. Vol.121-A, No.6. 573-579 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] FUJII Masayuki: "Space Charge Behavior in Polymer Film Based on Increment of Capacitance under AC high Field"T.IEE Japan. Vol.121-A, No.7. 689-695 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Oda Kenichi: "Tree Growth in Epoxy with Different Shapes of Filler"Proceedings of 2001 Japan-Korea Joint Symposium on ED & HVE. 341-344 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] FUJII Masayuki: "Numerical Analysis of Space Charge Distribution in Polypropylene Film under AC High Field"Conference Proceedings : 2001 International Symposium on Electrical Insulating Materials (ISEIM'01). P1-20. 156-159 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] NAGAO Masayuki: "Effect of Filler on Treeing Phenomenon in Epoxy Resin under AC Voltage"Conference Proceedings : 2001 International Symposium on Electrical Insulating Materials (ISEIM'01). Q-1. 611-614 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] V.H.Thanh: "Water Tree Retardant Characteristics of Silane Crosslinked Polyethylene"Conference Proceedings : 2001 International Symposium on Electrical Insulating Materials (ISEIM'01). H-5. 467-470 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] NISHIOKA Koji: "Effect of Moisture on Treeing Phenomenon in Epoxy Resin with Fillers under A.C. Voltage"The Papers of Joint Technical Meeting on Electrical Discharges and Dielectrics and Electrical Insulation, IEE Japan. DEI-02-64. 25-28 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] NISHIOKA Koji: "Effect of Filler on Treeing Phenomenon in Epoxy Resin under A.C. Voltage(2)"The Papers of Joint Technical Meeting on Electrical Discharges and Dielectrics and Electrical Insulation, IEE Japan. DEI-01-96. 7-10 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] NAGAO Masayuki: "Effect of Moisture on Treeing Phenomenon in Epoxy Resin with Filler under AC Voltage"2002 IEEE Annual Report, Conference on Electrical Insulation and Dielectric Phenomena. 951-954 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 西岡幸治: "充填剤配合エポキシ樹脂の交流トリーイング特性に及ぼす吸水の影響"電気学会放電・誘電・絶縁材料共同研究会. DEI-02-64. 25-28 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] M.Nagao: "Effect of Moisture on Treeing Phenomenon in Epoxy Resin with Filter under AC Voltage"2002 IEEE Annual Report CEDIP(02CH3732). 1. 951-954 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 藤井 雅之: "絶縁破壊に近い交流高電界領域における高分子材料の充電電流増加に対する考察"電気学会論文誌A. 121・6. 573-579 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 藤井 雅之: "交流高電界下における高分子フィルムの静電容量変化にもとづく空間電荷挙動の検討"電気学会論文誌A. 121・7. 689-698 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Oda: "Tree Growth in Epoxy with Different Shapes of Filler"Proceedings of 2001 Japan-Korea Joint Symposium on ED & HVE. 1. 341-34* (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] M.Nagao: "Effect of Filler on Treeing Phenomenon in Epoxy Resin under AC Voltage"Proceedings of 2001 ISEIM. 1. 611-614 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 西岡幸治: "エポキシ樹脂の交流トリーイング特性に及ぼす充填剤の影響(II)"電気学会誘電・絶縁材料研究会. DEI-01-96. 7-10 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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