publisher

学術雑誌論文

本学関連学会

text

電気材料技術雑誌.14(1) P.37-P.47

帯電制御による真空中絶縁スペーサの耐圧向上

Improving Surface Insulation Ability by Controlling Charging in Vacuum

電気材料技術懇談会

日本語

2005-06-30

http://hdl.handle.net/11094/76784

This paper describes the method that controls the surface charging of a solid insulating spacer used in vacuum. Vacuum environment is used for various kinds of electrical and electronic apparatus and most of them suffer from the electrical insulation along solid dielectrics. The insulation length of such dielectrics varies from some hundreds of microns up tolOOOmm depending on the apparatus. From the view point of electrical insulation in vacuum, the weakest point resides on the surface; the discharge along insulator surface. The surface discharge in vacuum is triggered by charging of the surface, and it is thus important to suppress such charging. The first section of this paper emphasizes the importance of studying surface discharge in vacuum and briefly reviews the theoretical basis of the charging of insulators as well as flashover mechanisms in vacuum. In the second section we introduce the promising mechanism that explains surface charging in vacuum. In the third section several methods for controlling surface charge accumulation developed so far by many researchers are introduced. In the later sections we introduce our recent theoretical and experimental studies that demonstrate effectiveness of surface treatment of an insulator to suppress charging and to improve its insulation strength.

帯電制御による真空中絶縁スペーサの耐圧向上

電気材料技術懇談会

日本語

2005-06-30

電気材料技術雑誌

14

1

37

47

http://hdl.handle.net/11094/76784