JPS5974643U

JPS5974643U - gas circuit breaker

Info

Publication number: JPS5974643U
Application number: JP17084382U
Authority: JP
Inventors: 満晴奥野
Original assignee: 三菱電機株式会社
Priority date: 1982-11-09
Filing date: 1982-11-09
Publication date: 1984-05-21

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 the drawing]

第１図は従来のバッファ形遮断器の消弧室の縦断面図、
第２図は本考案の一実施例の消弧室の縦断面図、第３図
及び第４図は第２図における絶縁ノズルの左側面図及び
縦断面図である。１・・・・・・固定接触子、２・・・・・・絶縁ノズル
、２ａ・・・・・・基端、２ｂ・・・・・・先端、２ｃ
・・袖穴、３・・曲可動接触子、４・・曲バッファシリ
ンダ、５・・曲ピストン、６・・・・・・ロッド、７・
・・・・・アーク、８・・・・・・ガス流、Ａ・・・・
・・第１ガス流路、Ｂ・・・・・・第２ガス流路。なお
、各図中、同一符号は同−又は相当部分を示す。Figure 1 is a longitudinal sectional view of the arc extinguishing chamber of a conventional buffer type circuit breaker.
FIG. 2 is a longitudinal sectional view of an arc extinguishing chamber according to an embodiment of the present invention, and FIGS. 3 and 4 are a left side view and a longitudinal sectional view of the insulating nozzle in FIG. 2. 1...Fixed contact, 2...Insulating nozzle, 2a...Base end, 2b...Tip, 2c
...Sleeve hole, 3.Curved movable contact, 4.Curved buffer cylinder, 5.Curved piston, 6.Rod, 7.
...Arc, 8...Gas flow, A...
...First gas flow path, B...Second gas flow path. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

(1) A shutoff section having at least one pair of fixed contacts and movable contacts that are relatively releasable in a pressure vessel filled with arc-extinguishing insulating gas at a single pressure; In the gas circuit breaker, the gas circuit breaker is equipped with a blowing pressure generation section having a buffer cylinder and a piston for compressing and spraying an arc-extinguishing insulating gas against an arc, the movable contact being a first gas flow path for arc-extinguishing insulating gas formed so as to surround an outer diameter portion of the gas flow path; and a second gas flow path for arc-extinguishing insulating gas formed further outside the outer diameter portion of the first gas flow path. A gas circuit breaker characterized by being provided with.

(2) The gas circuit breaker according to claim 1, wherein the second gas flow path for the arc-extinguishing insulating gas is formed by a plurality of holes provided in the insulating nozzle.