Journal ArticleDOI
A New Contamination Test Method
Bruno Macchiaroli,F. J. Turner +1 more
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TLDR
In this article, a contamination test method is proposed that can be applied to almost any piece of apparatus, such as suspension insulators, bushings, lightning arresters, and station equipment.Abstract:
A contamination test method is proposed that can be applied in any existing laboratory without adding expensive new facilities or equipment. The method can be applied to almost any piece of apparatus, such as suspension insulators, bushings, lightning arresters, and station equipment.read more
Citations
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Journal ArticleDOI
Effect of pollution on high-voltage outdoor insulators
TL;DR: In this paper, the influence of a number of parameters, such as surface conductivity, overall length, leakage-path length and profile on insulator flashover is discussed, and the effect of voltage waveshape is shown that direct voltage gives flashover at the lowest peak stress for a given pollution severity.
Journal ArticleDOI
Application of Insulators in a Contaminated Environment
TL;DR: In this paper, the authors combine the experiences of electric utilities, manufacturers, and research laboratories into a single comprehensive report on the design and maintenance of transmission insulation in a contaminated environment, which is intended as a practical reference and guideline to be used by all electric utility engineers and operating personnel.
Journal ArticleDOI
Concentrated Discharges and Dry Bands on Polluted Outdoor Insulators
TL;DR: In this paper, the authors describe concentrated discharges on polluted insulators in the laboratory and in the field and show that these discharges are very dangerous especially for high-voltage apparatus, bushings, and polymer insulators.
Journal ArticleDOI
Anti-Pollution Design Criteria for Line and Station Insulators
TL;DR: In this article, the authors presented anti-pollution design criteria for line and station insulators based on investigation of performance of various insulators under artificial pollution tests, and classified field pollution areas into six classes; AA, A, B, C, D and E according to pollution degree.
Journal ArticleDOI
Tests on Salt-Contaminated Insulators in Artificial and Natural Wet Conditions
Mikio Kawai,David M. Milone +1 more
TL;DR: The results of experimental work on transmission line insulation contamination at General Electric Project UHV are described in this article, where a stable steam fog generation system has been developed for use in simulating natural humidity conditions, and its validity has been proved in natural humidity tests conducted in the project's outdoor test area.
References
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Journal ArticleDOI
Research on the performance of high-voltage insulators in polluted atmospheres
Abstract: The paper describes the work which has been carried out at the Croydon Insulator Testing Station during the last 15 years on the performance of insulators in humid and polluted atmospheres. Various types of line and substation insulators have been investigated, and the results obtained with insulators for working voltages of up to 380 kV are presented. Methods of surface treatment to improve insulator performance are also discussed. Work on experimental insulators made from plastics is described. An account is given of recent work on insulators for high-voltage d.c. operation. The use of artificial salt-pollution tests to simulate service conditions is also discussed.
Journal ArticleDOI
Japanese Method of Artificial Pollution Tests on Insulators
Shuhei Fujitaka,Tatsuo Kawamura,Sakuro Tsurumi,Hiroshi Kondo,Taisuke Seta,Mitsuyoshi Yamamoto +5 more
TL;DR: In this paper, a simple method of artificial pollution test has been developed to evaluate the flashover characteristics of polluted insulators, especially those with large dimensions, and a salt solution of various concentrations containing a certain amount of kaolin is prepared and sprayed on the entire surface of the insulator to give a required density of salt deposit and sufficient moisture.
Journal ArticleDOI
Artificial-pollution test for high-voltage outdoor insulators
C.H.A. Ely,P.J. Lambeth +1 more
TL;DR: In this article, a new method of measuring the performance of an insulator subjected to pollution has been developed, in which a saline fog is produced in which the insulator will flash over at its working voltage.
Journal ArticleDOI
Tests in Japan on the performance of salt-contaminated insulators in natural and artificial humid conditions
TL;DR: In this paper, the performance of salt-contaminated insulators in both natural and artificial humid conditions was analyzed, in relation to humidity, one type of flashover mechanism caused by salinity deposited on a porcelain surface and absorbed moisture in humid conditions.
Journal ArticleDOI
Comparison of Insulator Types by the Wet Contaminant and Clean Fog Test Methods
Bruno Macchiaroli,F. J. Turner +1 more
TL;DR: In this paper, stand and flashover test data are presented for five types of insulators tested by the clean fog method and the wet contaminant method, which were contaminated with a slurry having the proportions of 1 liter of water, 20 grams of Cab-O-Sil, 1 gram of Photo-Flo, and various quantities of salt.
Related Papers (5)
Tests on Salt-Contaminated Insulators in Artificial and Natural Wet Conditions
Mikio Kawai,David M. Milone +1 more
Comparison of Insulator Types by the Wet Contaminant and Clean Fog Test Methods
Bruno Macchiaroli,F. J. Turner +1 more