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Title: Composite rod insulators for ac power lines; Electrical performance of various designs at a coastal testing station

Abstract

The electrical performance of thirty-six composite insulators - of four commercial types for each AC system level of 34.5 kV, 230 kV and 500 kV - has been determined at the CEGB insulator testing station, Brighton, England. The weathershed materials were epoxy-resin, ethylene propylene rubber and silicone rubber; half of the 230 kV insulators had no stress rings. Surface leakage current was recorded for surge levels of 25 mA, 150 mA and 500 mA; a special technique was developed to obtain the flashover statistics of the 500 kV insulators, thereby enabling performance of the composite insulator to be quantified relative to that of a string of cap and pin porcelain insulators of anti-fog design, the deterioration of the insulators was observed by making regular visual inspections. The practical consequences of the findings and the causes of the degradation are discussed.

Authors:
;  [1]
  1. (Central Electricity Research Labs., Leatherhead (UK))
Publication Date:
OSTI Identifier:
6343186
Resource Type:
Journal Article
Resource Relation:
Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (USA); Journal Volume: 5:4
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; 36 MATERIALS SCIENCE; AC SYSTEMS; ELECTRICAL INSULATORS; COMPOSITE MATERIALS; ELECTRIC CONDUCTIVITY; MATERIALS TESTING; LIGHTNING; ENVIRONMENTAL IMPACTS; DESIGN; PLANNING; RESINS; SILICON; ELECTRIC DISCHARGES; ELECTRICAL EQUIPMENT; ELECTRICAL PROPERTIES; ELEMENTS; ENERGY SYSTEMS; EQUIPMENT; MATERIALS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; PHYSICAL PROPERTIES; POLYMERS; POWER SYSTEMS; SEMIMETALS; TESTING; 240201* - Power System Networks, Transmission & Distribution- AC Systems- (1990-); 360603 - Materials- Properties; 240500 - Power Transmission & Distribution- Environmental Aspects- (1990-); 240100 - Power Systems- (1990-)

Citation Formats

Houlgate, R.G., and Swift, D.A. Composite rod insulators for ac power lines; Electrical performance of various designs at a coastal testing station. United States: N. p., 1990. Web. doi:10.1109/61.103691.
Houlgate, R.G., & Swift, D.A. Composite rod insulators for ac power lines; Electrical performance of various designs at a coastal testing station. United States. doi:10.1109/61.103691.
Houlgate, R.G., and Swift, D.A. 1990. "Composite rod insulators for ac power lines; Electrical performance of various designs at a coastal testing station". United States. doi:10.1109/61.103691.
@article{osti_6343186,
title = {Composite rod insulators for ac power lines; Electrical performance of various designs at a coastal testing station},
author = {Houlgate, R.G. and Swift, D.A.},
abstractNote = {The electrical performance of thirty-six composite insulators - of four commercial types for each AC system level of 34.5 kV, 230 kV and 500 kV - has been determined at the CEGB insulator testing station, Brighton, England. The weathershed materials were epoxy-resin, ethylene propylene rubber and silicone rubber; half of the 230 kV insulators had no stress rings. Surface leakage current was recorded for surge levels of 25 mA, 150 mA and 500 mA; a special technique was developed to obtain the flashover statistics of the 500 kV insulators, thereby enabling performance of the composite insulator to be quantified relative to that of a string of cap and pin porcelain insulators of anti-fog design, the deterioration of the insulators was observed by making regular visual inspections. The practical consequences of the findings and the causes of the degradation are discussed.},
doi = {10.1109/61.103691},
journal = {IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (USA)},
number = ,
volume = 5:4,
place = {United States},
year = 1990,
month =
}