Influence of sintering temperature on the flashover performance of alumina insulators in vacuum

被引：11

作者：

Ding, LJ ^{[1
]}

Li, CR ^{[1
]}

Wang, JC ^{[1
]}

Wang, W ^{[1
]}

机构：

[1] N China Elect Power Univ, Dept Elect Engn, Beijing, Peoples R China

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2002年 / 9卷 / 02期

关键词：

D O I：

10.1109/94.993733

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper reports on the influence of sintering conditions on the flashover/pre-flashover characteristics of alumina insulators in vacuum under an impulse voltage. Four kinds of alumina insulator were studied, which were prepared using the same formula with different sintering conditions. The surface pre-flashover and flashover phenomena of different samples in vacuum have been observed under impulse voltage. Based on the experimental results, the characteristics of pre-flashover and flashover vary with different kinds of test samples. It was found that the insulators with a higher sintering temperature had a lower flashover voltage, and more active pre-flashover. From a scanning electron microscope (SEM) analysis of alumina insulators, we conclude that the methods of preparing alumina Samples can affect their microstructure resulting in a change in the pre-flashover and flashover performance as alumina insulators.

引用

页码：182 / 186

页数：5

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