NDLI: A Method of Increment Short-Circuit Current in Test of Ceramic and Composite Polluted Insulators

Content Provider	IEEE Xplore Digital Library
Author	Mohseni, H. Jahromi, A.N. Sanaye-Pasand, M. Jayaram, S.H. Akmal, A.A.S.
Copyright Year	1986
Abstract	One of the most important factors in an artificial pollution test of transmission and distribution insulators of power systems is the short-circuit current of the source. Most laboratories do not have strong source and test transformers. In this paper a test setup has been introduced to improve the performance of high-voltage laboratories for pollution test. It is based on adding an output capacitor and compensator reactors in a cascade setup. Beside simulations, clean-fog test method was used to determine the flashover voltage (FOV) of insulators that selected from overhead lines. Using the developed setup, there is an error in FOV less than 30% compared with a stiff setup in light pollution for ceramic cap and pin insulators. Higher levels of pollution cause the higher error in FOV in all cases. Although the error increases with pollution level, it is smaller in the case of composite insulators. The error decreases depending on the hydrophobicity of silicon rubber. So the less hydrophobic the insulator surface, the greater the error in FOV
Sponsorship	IEEE Power Engineering Society
Starting Page	977
Ending Page	985
Page Count	9
File Size	1013949
File Format	PDF
ISSN	08858977
Volume Number	22
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Insulator testing Ceramics Pollution Power transformer insulation Laboratories System testing Power systems Capacitors Inductors Flashover short-circuit current Cascade flashover insulator pollution
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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