JPS6284133U

JPS6284133U -

Info

Publication number: JPS6284133U
Application number: JP17566785U
Authority: JP
Priority date: 1985-11-14
Filing date: 1985-11-14
Publication date: 1987-05-29

Description

[Brief explanation of the drawing]

第１図ａ，ｂおよびｃは本考案の実施例を示す
正断面図、平面図および側断面図、第２図は封入
ガス圧とガス圧上昇値との関係を示すグラフ、第
３図は細隙の部分における作用を説明する図、第
４図は従来例の側断面図、第５図は消弧板の形状
を示す説明図、第６図および第７図は第５図のＸ
線およびＹ線に沿う断面図である。１：固定電極、２：可動電極、３，４：アーク
ランナー電極、５：集電子、６：消弧板、７：ア
ーク駆動用コイル、８：円筒電極、９：絶縁性容
器、１０：中間電極、１１：限流抵抗素子、１２
：排気口。 Figures 1 a, b, and c are a front sectional view, a plan view, and a side sectional view showing an embodiment of the present invention, Figure 2 is a graph showing the relationship between the sealed gas pressure and the gas pressure increase value, and Figure 3 is a graph showing the relationship between the sealed gas pressure and the gas pressure increase value. Figure 4 is a side sectional view of the conventional example, Figure 5 is an explanatory diagram showing the shape of the arc-extinguishing plate, Figures 6 and 7 are X in Figure 5.
FIG. 1: Fixed electrode, 2: Movable electrode, 3, 4: Arc runner electrode, 5: Current collector, 6: Arc extinguishing plate, 7: Arc drive coil, 8: Cylindrical electrode, 9: Insulating container, 10: Intermediate Electrode, 11: Current-limiting resistance element, 12
:exhaust port.

Claims

[Claims for Utility Model Registration] A pair of separable main electrodes is arranged, an arc runner electrode is provided in parallel on each main electrode,
An intermediate electrode is provided between the pair of arc runner electrodes, and a current limiting resistor element is connected between this intermediate electrode and either one of the arc runner electrodes, and this connection part is used as a commutation part and a non-connection part. is the disconnection section, and the commutation section is configured such that a pair of arc extinguishing plates sandwiched between the arc runner electrode and the intermediate electrode are arranged so as to gradually become narrower toward the tip of the arc runner electrode, thereby creating a slit space. In the current limiting device, the current limiting device is of a slit arc extinguishing type having an exhaust port at the tip thereof, and the disconnection part is a magnetically driven rotating arc extinguishing type having an arc driving coil and an arc rotation space. Leaving only the exhaust port, all other components such as the contact/separation part of the main electrode, the disconnection part, and the commutation part are surrounded by an insulating container, and the arc rotation space of the disconnection part and the slit space are communicated. A slit commutation type current limiting device characterized by forming a pressurizing chamber.