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Abnormality of electric field at a wedgelike edge of a conductor or a dielectric interface and methods for its relaxation
Author(s) -
Kawamoto Tadashi,
Takuma Tadasu
Publication year - 2007
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/eej.20280
Subject(s) - conductor , electric field , electrical conductor , dielectric , enhanced data rates for gsm evolution , relaxation (psychology) , condensed matter physics , field (mathematics) , materials science , electrical engineering , electrode , electronic engineering , engineering physics , physics , engineering , composite material , telecommunications , mathematics , psychology , social psychology , quantum mechanics , pure mathematics
Abnormal electric field appears at a wedgelike edge of a conductor (electrode) or a dielectric interface, which usually becomes infinitely high. This paper analyzes the electric field near such an edge by the analytical variable separation method and by the numerical one of the charge simulation method. The analysis focuses on the special conditions where the electric field becomes zero at an edge. These conditions are important for the insulation design to suppress the discharge inception at such edges of conductors and dielectric interfaces. © 2007 Wiley Periodicals, Inc. Electr Eng Jpn, 159(1): 1–8, 2007; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20280