JPS6059435U

JPS6059435U - Shiya disconnector

Info

Publication number: JPS6059435U
Application number: JP15198183U
Authority: JP
Inventors: 四元　正一
Original assignee: 株式会社東芝
Priority date: 1983-09-30
Filing date: 1983-09-30
Publication date: 1985-04-25

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は、既に提案されているエア吹付装置を有しない
しゃ断器のしゃ断性性を示すグラフ、第２図は、上記し
ゃ断器の小電流しゃ断時のアーク電圧波形を示すグラフ
、第３図は、回生車による主回路電流のパターンを示す
グラフ、第４図及び第５図は、既に提案されている空気
吹付装置を備えたしゃ断器の各線図、第６図は、本考案
による空気吹付装置を備えたしゃ断器の側面図、第７図
は、第６図を線図的に示す図、第８図は、本考案による
小電流しゃ断時のアーク電圧によるグラフ、第９図及び
第１０図は、本考案の他の実施例を示す各図である。１・・・固定接点、２・・・可動接点、９・・・噴射ノ
ズル、１０・・・エア吐出管、２０・・・機枠、２１・
・・支持部材、２２・・・作動部材、２４・・・三ポー
ト作動弁、２５・・・空気溜、２７・・・エアタンク。第４Ｅ２１第５図Fig. 1 is a graph showing the breaking performance of a breaker without an air blowing device that has already been proposed, Fig. 2 is a graph showing the arc voltage waveform of the above-mentioned breaker when a small current is cut off, and Fig. 3 is a graph showing the main circuit current pattern due to the regenerative wheel, Figures 4 and 5 are diagrams of a circuit breaker equipped with an air blowing device that has already been proposed, and Figure 6 is a graph showing a circuit breaker equipped with an air blowing device according to the present invention. 7 is a diagrammatic representation of FIG. 6; FIG. 8 is a graph of arc voltage when interrupting a small current according to the present invention; FIGS. 9 and 10 The figures are diagrams showing other embodiments of the present invention. DESCRIPTION OF SYMBOLS 1... Fixed contact, 2... Movable contact, 9... Injection nozzle, 10... Air discharge pipe, 20... Machine frame, 21...
... Supporting member, 22... Operating member, 24... Three-port operating valve, 25... Air reservoir, 27... Air tank. 4E21 Figure 5

Claims

[Scope of Claim for Utility Model Registration] 1. An air discharge pipe is connected to a three-port operating valve connected to an air tank and an air reservoir, and an injection nozzle is extended to this air discharge pipe near a fixed contact of a breaker. A breaker characterized in that when the breaker is disconnected, the operating piece of the three-port operating valve is pushed by the operating member of the breaker to inject air from the air tank from the injection nozzle. 2. The circuit breaker according to claim 1, characterized in that the three-port operating valve is a micro valve. (3) The circuit breaker according to claim 1 or 2, characterized in that the actuating member is a cam member or an electric stone.