JPH0265848U

JPH0265848U -

Info

Publication number: JPH0265848U
Application number: JP14533188U
Authority: JP
Priority date: 1988-11-09
Filing date: 1988-11-09
Publication date: 1990-05-17

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示すガス絶縁接地
開閉器の投入時の要部断面図、第２図及び第３図
は第１図に示した実施例の短絡投入過程を示す要
部断面図、第４図乃至第６図は第１図に示した実
施例の引外し過程を示す要部断面図、第７図は一
般的なガス絶縁接地開閉器の概略構成を示す断面
図、第８図は従来のガス絶縁接地開閉器の投入時
の要部断面図、第９図及び第１０図は第８図のガ
ス絶縁接地開閉器における短絡投入過程及び引外
し過程を示す要部断面図である。１……容器、２……固定接触部、３……可動接
触部、４……操作機構部、５……可動接触子、６
……接触子ベース、７……固定側接触子、８……
固定側シールド、９……接触子ベース、１０……
可動側接触子、１１……可動側シールド、１２…
…アーク、１３……接地板、１６……容器、１７
……固定接触部、１８……可動接触部、１９……
接触子ベース、１９ａ……支持部、１９ｂ……凹
部、１９ｃ……連通孔、２０……固定側接触子、
２１……バネ、２２……固定側シールド、２２ａ
……摺動部材、２３……アーク接点、２４……可
動接触子、２５……接地板、２６……接触子ベー
ス、２７……可動側接触子、２８……可動側シー
ルド、２９……アーク、３０……アーク。 Fig. 1 is a cross-sectional view of the main part of a gas insulated grounding switch showing an embodiment of the present invention when it is closed, and Figs. 2 and 3 are main parts showing the short-circuit closing process of the embodiment shown in Fig. 1. 4 to 6 are sectional views of main parts showing the tripping process of the embodiment shown in FIG. Figure 8 is a cross-sectional view of the main part of a conventional gas-insulated grounding switch during closing, and Figures 9 and 10 are cross-sections of the main part showing the short-circuit closing process and tripping process in the gas-insulated grounding switch of Figure 8. It is a diagram. DESCRIPTION OF SYMBOLS 1... Container, 2... Fixed contact part, 3... Movable contact part, 4... Operating mechanism part, 5... Movable contact, 6
...Contact base, 7...Fixed side contact, 8...
Fixed side shield, 9...Contact base, 10...
Movable side contactor, 11... Movable side shield, 12...
...Arc, 13...Ground plate, 16...Container, 17
...Fixed contact part, 18...Movable contact part, 19...
Contactor base, 19a...Support part, 19b...Recess, 19c...Communication hole, 20...Fixed side contact,
21... Spring, 22... Fixed side shield, 22a
...Sliding member, 23...Arc contact, 24...Movable contact, 25...Ground plate, 26...Contact base, 27...Movable side contact, 28...Movable side shield, 29... Ark, 30... Ark.

Claims

[Claims for Utility Model Registration] A fixed side contact and a movable side contact are arranged facing each other so as to be able to move toward and away from each other in a container filled with an insulating gas, and the fixed side contact is separated from the fixed side by a predetermined space. A gas insulated grounding switch surrounded by a shield, which expands and pressurizes insulating gas in the stationary side shield by an arc generated between both contacts during the tripping process, and blows this pressurized insulating gas onto the arc to extinguish it. A recess is formed in the contact base that supports the stationary contact and the stationary shield, and a communication hole that opens laterally is provided, and a movable contact is mounted in the recess by a spring. An arc contact that is pressed toward the fixed side is slidably arranged, and this arc contact moves due to pressure fluctuations in the fixed side shield,
A gas insulated earthing switch characterized in that the insulating gas in the fixed side shield can be discharged to the outside through the communication hole.