The performance of silicone rubber for HV insulators under natural tropical aging

被引：0
|
作者：
Manjang, S [1 ]
Arief, M [1 ]
机构：
[1] Hasanuddin Univ, Dept Elect Engn, Makassar 90245, Indonesia
来源：
PROCEEDINGS OF THE 2004 IEEE INTERNATIONAL CONFERENCE ON SOLID DIELECTRICS, VOLS 1 AND 2 | 2004年
关键词：
D O I：
10.1109/ICSD.2004.1350351
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Silicone rubber is a new insulation material for HV outdoor insulators. In order to know the long term of its performance we investigated the aging of the material under natural tropical environment. This paper reports the result of a study on dielectric hydrophobicity and loss of weight. The samples of RTV and HTV silicone rubber with different filler levels were installed in open air plane in Bandung, Indonesia. Some parameters as the changes of weight, dielectric properties (epsilon(T) and tandelta), and hydrophobicity (contact angle) were periodically measured each week during 231 weeks (4.8 years). The experimental results showed that RTV and HTV silicone rubber showed still better hydrophobicity. However, greater changes of weight, epsilon(r) and tandelta were observed. Water absorption played unimportant role in the change of (epsilon(r) and tandelta), Removal of water trapped in samples clarified this speculation. HTV and RTV samples with higher filler content showed higher ability to resist the surface degradation and weight losses. Analysis of the residual weight may be used to expect the lifetime of material in service under natural tropical climate.
引用
收藏
页码：304 / 307
页数：4
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