@article{oai:miyazaki-u.repo.nii.ac.jp:00005044, author = {平島, 俊紀 and Hirashima, Toshiki and 白浜, 優吾 and Shirahama, Yugo and 中村, 友哉 and NAKAMURA, Tomoya and 三宅, 琢磨 and MIYAKE, Takuma and 迫田, 達也 and SAKODA, Tatsuya and 緒方, 貴仁 and 鎌田, 文麿 and 副島, 通邦 and 平島, 俊紀 and Hirashima, Toshiki and 白浜, 優吾 and Shirahama, Yugo and OGATA, Takahito and KAMADA, Fumimaro and SOEJIMA, Michikuni}, journal = {宮崎大学工学部紀要, Memoirs of Faculty of Engineering, University of Miyazaki}, month = {Jul}, note = {Measurement of partial discharges (PDs) at joint and terminal sections in cross-linked polyethylene (XLPE) cables is useful for stable power supply because defects at joint and terminal sections occupy 30% of electric failures in Japan. The purpose of our study is establishment of an insulation deterioration diagnostic technique based on detection of PDs using acoustic emission (AE) sensors. We here evaluated temporal variation in AE signal intensity, characteristics of frequency spectra and phase of the AE signal for tracking deterioration. The results showed that the deterioration phenomenon owing to tracking had plural progress stages.}, pages = {199--204}, title = {絶縁ゴムのトラッキング劣化過程における AE 信号特性}, volume = {45}, year = {2016}, yomi = {ヒラシマ, トシキ and シラハマ, ユウゴ and ナカムラ, トモヤ and ミヤケ, タクマ and サコダ, タツヤ and オガタ, タカヒト and カマダ, フミマロ and ソエジマ, ミチクニ and ヒラシマ, トシキ and シラハマ, ユウゴ} }