Experimental investigation of ageing effect on the dielectric performance of FRP sticks

Author

Zhao, Edward P. ; Kuffel, E.

Author_Institution

Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada

Volume

1

fYear

1996

fDate

16-19 Jun 1996

Firstpage

304

Abstract

The dielectric performance of FRP insulator sticks, which have been in power system maintenance service for 15, 24 and 25 years respectively, have been investigated experimentally. The factors causing the deterioration of the samples are discussed. The dielectric current method was used to evaluate their performance. A homogeneous electric field was obtained by a properly designed electrode system. The experiments were conducted in a humidity controlled chamber. The results illustrate that the mechanical factor had a stronger impact on the deterioration of FRP sticks than the chemical one. The pretence of moisture caused accelerated deterioration and the hydrophobic property of FRP sticks changed with time

Keywords

ageing; composite insulating materials; electric breakdown; fibre reinforced composites; insulation testing; maintenance engineering; organic insulating materials; 15 y; 20 y; 25 y; accelerated deterioration; ageing effect; dielectric current method; dielectric performance; electrode system; fibre reinforced plastic insulation; homogeneous electric field; humidity controlled chamber; hydrophobic property; insulation breakdown tests; insulator sticks; moisture; power system maintenance; Acceleration; Aging; Chemicals; Dielectrics and electrical insulation; Electrodes; Fiber reinforced plastics; Humidity control; Mechanical factors; Moisture; Power systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 1996., Conference Record of the 1996 IEEE International Symposium on

Conference_Location

Montreal, Que.

ISSN

1089-084X

Print_ISBN

0-7803-3531-7

Type

conf

DOI

10.1109/ELINSL.1996.549342

Filename

549342