JPH0268611U

JPH0268611U -

Info

Publication number: JPH0268611U
Application number: JP14728188U
Authority: JP
Priority date: 1988-11-11
Filing date: 1988-11-11
Publication date: 1990-05-24

Description

[Brief explanation of drawings]

第１図は本考案の実施例の要部を示す縦断面図
、第２図は本考案の他の実施例の要部の構成を概
略的に示す横断面図、第３図は同実施例において
接地用の電極が設けられる１相のケーブルヘツド
の要部の構造を示す断面図、第４図は同実施例で
用いる接地装置の構造を一部省略して示した断面
図、第５図は従来のガス絶縁開閉装置のケーブル
ヘツドエレメントの構成を示す縦断面図、第６図
は第５図のケーブルヘツドエレメントにおいて耐
電圧試験時にケーブルヘツドを主回路導体から切
離した状態を示す縦断面図である。１……容器、ＣＨｄ……ケーブルヘツド、２…
…ケーブルヘツドの端子部、３……主回路導体、
４……接続導体、１０……気密保持構造の軸受、
１１……接地棒、１２……接触子、１３Ａ及び１
３Ｂ……第１及び第２の可動電極、１７Ａ，１７
Ｂ……リンク、１９……ローラ、２０……ピン。 Fig. 1 is a vertical cross-sectional view showing the main part of an embodiment of the present invention, Fig. 2 is a cross-sectional view schematically showing the structure of the main part of another embodiment of the invention, and Fig. 3 is the same embodiment. FIG. 4 is a cross-sectional view showing the structure of a main part of a one-phase cable head in which a grounding electrode is provided, FIG. 6 is a longitudinal sectional view showing the configuration of a cable head element of a conventional gas-insulated switchgear, and FIG. 6 is a longitudinal sectional view showing the cable head element shown in FIG. 5 with the cable head separated from the main circuit conductor during a withstand voltage test. It is. 1...Container, CHd...Cable head, 2...
...Terminal section of cable head, 3...Main circuit conductor,
4... Connection conductor, 10... Bearing with airtight structure,
11...Grounding rod, 12...Contactor, 13A and 1
3B...first and second movable electrodes, 17A, 17
B...link, 19...roller, 20...pin.

Claims

[Scope of Claim for Utility Model Registration] (1) In a gas-insulated switchgear equipped with a cable head element which houses a cable head and a main circuit conductor connected to the cable head in a container filled with insulating gas. , a bearing part having an airtight structure attached to the side wall of the container facing the terminal part of the cable head; and a bearing part slidably extending through each of the bearing parts and supported so as to be connected to and separated from the terminal part of the cable head. A gas insulated switchgear characterized by comprising a grounding rod. (2) At least 3
In a gas-insulated switchgear equipped with a cable head element that houses a phase cable head and a main circuit conductor connected to the cable head, a contact provided at a terminal portion of the one-phase cable head; a grounding rod that is slidably supported by a bearing part with an airtight structure attached to the side wall of the container and makes contact with and separates from the contact; and a grounding rod that is rotatably supported by a terminal part of the one-phase cable head. It is provided to rotate between a grounded position in which it contacts the terminals of the other two-phase cable heads, and a non-grounded position away from the terminals of the other two-phase cable heads, and is released by a return spring. The first and second movable electrodes are biased toward the ground position, and the first and second movable electrodes are moved to the ground position in conjunction with the displacement of the ground rod toward the contact. A gas insulated switchgear characterized by comprising a mechanism.