低密度ポリエチレンの直流熱破壊特性とフィラメント状電力消費の検討

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2014/04/01

タイトル(英語): Discussion on Relationship between Filamentary Electrical Power Consumption and Thermal Breakdown for Low Density Polyethylene

著者名: 高田　達雄（東京都市大学），森　拓哉（東京都市大学），加藤　剛（東京都市大学），三宅　弘晃（東京都市大学），田中　康寛（東京都市大学）

著者名(英語): Tatsuo Takada (Measurement and Electric Machine Control Labs.), Takuya Mori (Measurement and Electric Machine Control Labs.), Tsuyoshi Kato (Measurement and Electric Machine Control Labs.), Hiroaki Miyake (Measurement and Electric Machine Control Labs.), Yasuhiro Tanaka (Measurement and Electric Machine Control Labs.)

キーワード: 直流熱破壊，衝撃熱破壊，低密度ポリエチレン，架橋剤分解残渣　　DC thermal breakdown，impulse thermal breakdown，low density polyethylene，cross linking byproducts

要約(英語): The LDPE impregnated with acetophenone, one of cross-linking by-products in XLPE, under a high electrical stress of 150kV/mm caused a breakdown with the consumption electric power of κE2=2.3W/cm2 which was measured by using the advanced technique combined with the space charge measurement (PEA system) and the external current measurement. This paper discusses on the thermal breakdown model which is occurred when an intrinsic energy, mdCv(Tm-To)=220J/cm3, required to impulse breakdown of LDPE equals to the supplying electric power, kE2Δt, where md is a density of material, Cv a specific heat, Tm a melting point of LDPE and To a room temperature, κ a conductivity, E an electric field, Δt a formation time of breakdown. It is found that when the thermal breakdown was occurred, the measured electric power, κE2=2.3W/cm2, was consumed in a filamentary higher conductivity path (size; a thickness of specimen of a=100µm, and a cross section of filament of ΔS=100µm×100µm).

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.134 No.4 （2014） 特集：平成25年基礎・材料・共通部門大会

本誌掲載ページ: 250-257 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/134/4/134_250/_article/-char/ja/