JPH0291406U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

図は本考案の一実施例を示す一部断面図である
。 図において、１は金属容器、２は絶縁媒体、３
は主回路導体、４は避雷器、５は第１の固定接触
部、６は接地導体、７は第２の固定接触部、８は
摺動接触部、９は可動接触部、である。 The figure is a partially sectional view showing an embodiment of the present invention. In the figure, 1 is a metal container, 2 is an insulating medium, and 3 is a metal container.
4 is a main circuit conductor, 4 is a lightning arrester, 5 is a first fixed contact part, 6 is a ground conductor, 7 is a second fixed contact part, 8 is a sliding contact part, and 9 is a movable contact part.

Claims (1)

【実用新案登録請求の範囲】 (1) 接地電位の金属容器内に、避雷器が少なく
とも収納された開閉装置において、前記避雷器の
充電部側に配設された第１の固定接触部と、接地
電位にある接地導体に配設された第２の固定接触
部とを対向して配置する一方、主回路導体に接続
された摺動接触部を前記第１の固定接触部と前記
第２の固定接触部との中間でかつ同一軸心上に配
設し、一端部が前記第１の固定接触部に接離しか
つ他端部が前記第２の固定接触部に接離するとと
もに少なくとも該第１の固定接触部若しくは第２
の固定接触部に接触した状態では前記摺動接触部
に接触する可動接触部を中間位置では前記第１の
固定接触部および第２の固定接触部に対してそれ
ぞれ絶縁に必要な適宜の距離を離間するように前
記摺動接触部に往復直線運動可能に配設し、通常
の通電時には前記可動接触部が前記第１の固定接
触部と接触し、主回路導体の接地時には前記可動
接触部が前記第２の固定接触部に接触し、かつ主
回路導体の耐電圧試験時には前記可動接触部が前
記第１の固定接触部と第２の固定接触部との間の
中間位置にあるように構成したことを特徴とする
開閉装置。 (2) 前記金属容器内には、絶縁性ガスあるいは
絶縁油等の絶縁媒体が充填されたことを特徴とす
る請求項(1)記載の開閉装置。[Claims for Utility Model Registration] (1) In a switchgear in which at least a lightning arrester is housed in a metal container at ground potential, a first fixed contact part disposed on the live part side of the lightning arrester and a metal container at ground potential A second fixed contact part disposed on a ground conductor located in one end of which contacts and separates from the first fixed contact part, and the other end of which contacts and separates from the second fixed contact part, and at least the first fixed contact part. Fixed contact part or second
The movable contact part, which contacts the sliding contact part when in contact with the fixed contact part, is separated from the first fixed contact part and the second fixed contact part in an intermediate position by an appropriate distance necessary for insulation, respectively. The sliding contact portion is arranged so as to be able to move in a reciprocating straight line so as to be spaced apart, and the movable contact portion is in contact with the first fixed contact portion during normal energization, and the movable contact portion is in contact with the first fixed contact portion when the main circuit conductor is grounded. The movable contact portion is configured to be in contact with the second fixed contact portion and to be at an intermediate position between the first fixed contact portion and the second fixed contact portion during a withstand voltage test of the main circuit conductor. A switchgear characterized by: (2) The switchgear according to claim 1, wherein the metal container is filled with an insulating medium such as an insulating gas or an insulating oil.