Presentation 2018-12-14 Study on Electromagnetic Inducted Voltage on Multi-point Grounded Conductor Based on 1/1000 Scale Model Atsushi Nagao, Tetsuo Iezuka, Tetsuya Kaiden, Norihito Hirasawa, Hidenori Itou, Ryuichi Kobayashi, PDF download Page Link (See Japanese page) Electromagnetic induction between power and telecommunication lines has been studied since early 1900’s [1]-[5], because induced voltage may cause physical injury of service personnel, and malfunction or quality degradation of telecommunications． On the other hand, induction against suspension wires has been less studied because phenomena could be complicated so that it was connected to grounds at multiple points． In former study [6], Thevenin’s theorem was applied to a mesh circuit and calculated an induced voltage at one-side end． However, it couldn’t obtain voltage at each grounded points and calculation results depended on initial conditions of the circuit． In this paper, we have studied the induction phenomena against multiple point grounded conductor, theoretically and experimentally． First, we replaced induction model to equivalent mesh circuit and calculated voltages at each grounded point． Second, we have measured induced voltage at each grounded point by using 1/1000 scale model to confirm accuracy of the calculation model． Furthermore, since distance between connection points to the grounds and earthing resistances are vary in real situation, we have calculated voltages at each grounded point when those parameters varied at random． (See Japanese page) Electromagnetic induction / multi-point grounded conductor / 1/1000 scale model EMCJ2018-94 2018-12-07 (EMCJ)

Committee Conference Information EMCJ / IEE-EMC 2018/12/14(1days) (See Japanese page) (See Japanese page) Osami Wada(Kyoto Univ.) / Ken-ichi Yamazaki(Central Research Institute of Electric Power Industory) Kensei Oh(Nagoya Inst. of Tech.) Kensei Oh(Tokyo Inst. of Tech.) / (Mitsubishi Electric) Shinobu Nagasawa(Mitsubishi Electric) / Shinichiro Yamamoto(Univ. of Hyogo) / Takanori Unou(Denso) / Takaaki Ibuchi(Osaka Univ.)

Registration To Paper Information Technical Committee on Electromagnetic Compatibility / Technical Meeting on Electromagnetic Compatibility JPN (See Japanese page) (See Japanese page) Study on Electromagnetic Inducted Voltage on Multi-point Grounded Conductor Based on 1/1000 Scale Model Electromagnetic induction multi-point grounded conductor 1/1000 scale model Atsushi Nagao NTT East Corporation(NTT East) Tetsuo Iezuka NTT East Corporation(NTT East) Tetsuya Kaiden NTT East Corporation(NTT East) Norihito Hirasawa NTT East Corporation(NTT East) Hidenori Itou NTT East Corporation(NTT East) Ryuichi Kobayashi NTT East Corporation(NTT East) 2018-12-14 EMCJ2018-94 vol.118 EMCJ-363 pp.pp.63-67(EMCJ), 5 2018-12-07 (EMCJ)