@article{oai:miyazaki-u.repo.nii.ac.jp:00005673, author = {白浜, 優吾 and Shirahama, Yugo and 中村, 友哉 and Nakamura, Tomoya and 川小根, 光輝 and Kawakone, Mitsuki and 迫田, 達也 and Sakoda, Tatsuya and 白浜, 優吾 and Shirahama, Yugo and 川小根, 光輝 and Kawakone, Mitsuki}, journal = {宮崎大学工学部紀要, Memoirs of Faculty of Engineering, University of Miyazaki}, month = {Jul}, note = {To diagnose electric power apparatus under system in operation, to detect partial discharge (PD) which refers predictive phenomenon on insulation deterioration of the power apparatus is useful. An electromagnetic (EM) wave sensor technique is widely accepted for the detection of PDs. We installed a PD source in a 6.6 kV mold transformer tank, and we evaluated influence of the aperture size on secondary terminal box. EM waves owing to the PDs were measured from the outside of the tank by an EM sensor. It was possible to discriminate between discharge and noise by focusing on the frequency peak ratio between 20 - 45 MHz band and 50 MHz although the intensity decreases.}, pages = {163--166}, title = {配電機器内部で生じた部分放電による放射電磁波特性}, volume = {47}, year = {2018}, yomi = {シラハマ, ユウゴ and ナカムラ, トモヤ and カワコネ, ミツキ and サコダ, タツヤ and シラハマ, ユウゴ and カワコネ, ミツキ} }