JPS6251905U

JPS6251905U -

Info

Publication number: JPS6251905U
Application number: JP14039585U
Authority: JP
Priority date: 1985-09-13
Filing date: 1985-09-13
Publication date: 1987-03-31

Description

[Brief explanation of the drawing]

第１図は本考案の第１の実施例を示す接地絶縁
端子の縦断面図、第２図は第１図をＹ―Ｙ方向に
見た正面図、第３図は本考案の第２の実施例を示
す接地絶縁端子の縦断面図、第４図は第３図をＺ
―Ｚ方向に見た正面図、第５図は接地絶縁端子を
備えたガス絶縁開閉装置の構成例を示す説明断面
図、第６図は従来の接地絶縁端子の構造例を示す
縦断面図、第７図は第６図をＸ―Ｘ方向に見た正
面図である。１：密閉金属容器、４：スペーサ、５：接地導
体、６：三相短絡子、７：保護カバー、２３，２
６：接地装置、２４ａ，２４ｂ，２４ｃ：主回路
導体、３２：接地絶縁端子、３７：保護カバー、
３８，４８：集電子。 FIG. 1 is a vertical cross-sectional view of a ground insulated terminal showing the first embodiment of the present invention, FIG. 2 is a front view of FIG. A vertical cross-sectional view of a ground insulated terminal showing an example, FIG.
-A front view seen in the Z direction, Fig. 5 is an explanatory sectional view showing an example of the configuration of a gas insulated switchgear equipped with a ground insulated terminal, and Fig. 6 is a longitudinal sectional view showing an example of the structure of a conventional ground insulated terminal. FIG. 7 is a front view of FIG. 6 viewed in the XX direction. 1: Sealed metal container, 4: Spacer, 5: Ground conductor, 6: Three-phase short circuit, 7: Protective cover, 23,2
6: Grounding device, 24a, 24b, 24c: Main circuit conductor, 32: Grounding insulated terminal, 37: Protective cover,
38, 48: Electron collector.

Claims

[Claims for Utility Model Registration] (1) A container of a gas-insulated switchgear in which a three-phase main circuit conductor and a grounding device for grounding each conductor are housed in a sealed metal container filled with an insulating gas. A grounding insulated terminal that is installed inside the case and pulls out the ground side terminal of the grounding device outside the container separately and insulated from the container to ground the three phases in common,
a spacer that insulates and supports from the metal container three parallel ground conductors that are electrically conductively connected to the ground side terminal of the grounding device and whose end faces on the atmosphere side are aligned in substantially the same plane; a three-phase short circuit that contacts a conductor to short-circuit the three ground conductors and leads to the potential of the metal container; and a metal protective cover that protects from external contact, wherein the three-phase short circuit is formed as a sliding contact that slides into contact with the three ground conductors inside the metal protective cover. A ground insulated terminal for a gas insulated switchgear characterized by: (2) In the grounding insulated terminal described in claim 1 of the utility model registration claim, the contact portion formed inside the protective cover of the three-phase short circuit formed as a sliding contact is connected to each of the three grounding conductors. A ground insulated terminal for a gas insulated switchgear, characterized in that it consists of three collectors arranged corresponding to the ground. (3) In the grounding insulated terminal described in claim 1 of the utility model registration claim, the contact portion formed inside the protective cover of the three-phase short circuit formed as a sliding contact is common to three grounding conductors. A ground insulated terminal for a gas insulated switchgear, characterized in that it consists of one current collector.