Abnormality of electric field at a wedgelike edge of a conductor or a dielectric interface and methods for its relaxation |
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| Authors: | Tadashi Kawamoto Tadasu Takuma |
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| Affiliation: | 1. Electric Power Engineering Research Lab., CRIEPI, Japan;2. Nuclear Technology Research Lab., CRIEPI, Japan;3. Tokyo Denki University, Japan |
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| Abstract: | 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 |
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| Keywords: | electrostatic field dielectric wedgelike edge insulation charge simulation method |
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