コシヅカ タダシ   KOSHIZUKA Tadashi
  腰塚 正
   所属   東京電機大学  工学部 電気電子工学科
   東京電機大学大学院  先端科学技術研究科 電気電子システム工学専攻
   東京電機大学大学院  工学研究科 電気電子工学専攻
   職種   教授
言語種別 英語
発行・発表の年月 2016/03
形態種別 国際会議論文
標題 Investigation on Frequency Response Analysis Measurement Method for Power Transformer Impedance
執筆形態 共著
掲載誌名 IEEJ-IEEE Thailand Symposium
掲載区分国外
著者・共著者 Tadashi Koshizuka,Hisatoshi Ikeda, Eiichi Haginomori, Yasuhiko Taniguchi,Takeshi Shinkai, A. Devadiga, N. Harid, S. Jayaram, N. Al Sayari, B. Barkat Regards Noureddine
概要 The frequency response analysis of transformer has been expected to be a good method for diagnosing the transformer condition. As the transformer impedance is affected by the configuration, the change of the impedance will be a good indicator for the change of the transformer configuration. The method which has been recognized cannot achieve the measurement of current flowing through the stray capacitance to the earth. The measured impedance was not correct at the high frequency range where an influence of the capacitance becomes large. In this paper, the new method was proposed in which the resistor for the current measurement is connected to the terminal of the power application and its value is adjusted. It is shown that the correct measurement can be achieved by the proposed one in this paper.