Premium
Propagation characteristics of impulse creepage discharge in a parallel‐plane gap with a protruding point in transformer oil
Author(s) -
Nakao Yoshitaka,
Naruse Masashi,
Sakai Takashi,
Itoh Hidenori,
Suzuki Yoshio,
Sakai Yosuke,
Tagashira Hiroaki
Publication year - 1998
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/(sici)1520-6416(19980730)124:2<1::aid-eej1>3.0.co;2-9
Subject(s) - electrode , impulse (physics) , schlieren , transformer oil , streamer discharge , insulator (electricity) , voltage , materials science , electrical engineering , transformer , plate electrode , electric field , optics , acoustics , optoelectronics , engineering , physics , quantum mechanics
The propagation characteristics of the creepage discharge in a parallel‐plane electrode gap with a protruding point in transformer oil are observed and investigated in detail under an impulse voltage application by using a high‐speed schlieren optical technique and an LED current measurement system. Streamer‐like density changes appeared from the protruding point tip of one high‐voltage plane electrode and propagated to the other grounded plane electrode. In the present paper, the effect of the arrangement of a barrier insulator and the electric field direction on the propagation of the creepage discharge is discussed. © 1998 Scripta Technica, Electr Eng Jpn, 124(2): 1–7, 1998