DocumentCode :
2152701
Title :
Innovations in polymer arrester moisture sealing testing
Author :
Bennett, J.A. ; Mackevich, J.P. ; Mosso, R.J.
Author_Institution :
Raychem Corp., Menlo Park, CA, USA
fYear :
1994
fDate :
10-15 Apr 1994
Firstpage :
404
Lastpage :
410
Abstract :
The vast majority of porcelain distribution arrester failures are the result of moisture ingress. Standards lag technology and do not currently address the unique design aspects of polymer arresters. Traditional sealing test methods cannot be run on polymer arresters because of lack of internal air space. A novel design test is proposed which involves sensitive interfacial leakage current measurements as the diagnostic. Samples are thermally cycled in water to produce thermal excursions and aging, while encouraging water ingress, should the sealing system be compromised. The proposed test is modification of a protocol established for polymer insulators, which has been correlated to field service
Keywords :
ageing; distribution networks; electric breakdown of solids; electric current measurement; insulation testing; organic insulating materials; polymers; power system protection; seals (stoppers); surge protection; switchgear testing; aging; design; diagnostics; distribution arrester failures; electric breakdown; interfacial leakage current measurements; internal air space; moisture sealing testing; polymer surge arresters; power systems; thermal cycling; thermal excursions; water ingress; Aging; Arresters; Current measurement; Leakage current; Moisture; Polymers; Porcelain; Space technology; Technological innovation; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Transmission and Distribution Conference, 1994., Proceedings of the 1994 IEEE Power Engineering Society
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1883-8
Type :
conf
DOI :
10.1109/TDC.1994.328406
Filename :
328406
Link To Document :
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