JPS613644U

JPS613644U - Gas cutter

Info

Publication number: JPS613644U
Application number: JP8780184U
Authority: JP
Inventors: ▲隆▼一井上; 久良中林
Original assignee: 三菱電機株式会社
Priority date: 1984-06-11
Filing date: 1984-06-11
Publication date: 1986-01-10

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〜第３図はいずれも従来のガスしゃ断器を示すも
ので、第１図は閉路状態を示す側断面図、第２図は（７
や断動作の途中を示す側断面図、第３図は開路状態を示
す側断面図である。第４図７はこの従来例のしゃ断動作に応じて変化する電
極間距離、電流値、消弧性ガス吹付量のそれぞれを示す
特性図である。第５図〜第７図はいずれもこの考案の一実施例によるガ
スしゃ断器を示すもので、第５図は閉路状態を示す側断
面図、第６図はしゃ断動作の途中を示す側断面図、第７
図は開路状態を示す側断面図である。第８図はこの実施例のしゃ断動作に応じて変化する電極
間距離、電流値、消弧性ガス吹付量のそれぞれを示す特
性図である。第９図はこの考案の他の実施例によるガスしゃ断器を示
す側断面図である図において、１は固定電極すなわち第１の電弧電極、１
ａは排気孔、２ｂは可動アーク電極すなわち第２の電弧
電極、５はノズル、９は圧力生成部、２２は閉塞部材で
ある。なお、図中、同一符号は同一または相当部分を示。Figures 1 to 3 all show conventional gas circuit breakers, with Figure 1 being a side sectional view showing the closed circuit state, and Figure 2 being (7
FIG. 3 is a side sectional view showing the middle of the disconnection operation, and FIG. 3 is a side sectional view showing the open circuit state. FIG. 4 is a characteristic diagram showing the distance between the electrodes, the current value, and the amount of arc-extinguishing gas sprayed, which change depending on the shutoff operation of this conventional example. Figures 5 to 7 all show a gas breaker according to an embodiment of the invention, with Figure 5 being a side sectional view showing the closed circuit state, and Figure 6 being a side sectional view showing the middle of the breaker operation. , 7th
The figure is a side sectional view showing an open circuit state. FIG. 8 is a characteristic diagram showing the distance between the electrodes, the current value, and the amount of arc-extinguishing gas sprayed, which change depending on the shutoff operation of this embodiment. FIG. 9 is a side sectional view showing a gas breaker according to another embodiment of the invention, in which 1 is a fixed electrode, that is, a first electric arc electrode;
a is an exhaust hole, 2b is a movable arc electrode, that is, a second arc electrode, 5 is a nozzle, 9 is a pressure generating section, and 22 is a closing member. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

(1) a first electric arc electrode having a discharge hole in the axial direction; a second electric arc electrode that is inserted into and removed from the discharge hole of the first electric arc electrode to perform a closing/cutting operation; It is provided at the tip of the second electric arc electrode, and the second electric arc electrode is at a predetermined distance from the first electric arc electrode during the cutoff operation.
an insulating closing member that closes the discharge hole for a period of time until the discharge hole is removed; and the first electric arc electrode and the second
a pressure generation unit that sprays arc-extinguishing gas under high pressure to the arc generated between the arc-extinguishing gas and the arc-extinguishing gas; and a nozzle that forms a flow path for the arc-extinguishing gas and guides the arc-extinguishing gas to the discharge hole. Gaz breaker equipped with.

(2) The gas breaker according to claim 1, characterized in that the first electric arc electrode is on the fixed side.

(3) The gas breaker according to claim 1, wherein the pressure generating section is constituted by a puffer seal and a puffer piston.

(4) The gas and disconnector according to claim 1, wherein the pressure generating section is an auto-puffer that accumulates pressure by the thermal energy of an arc. (5) The gas breaker according to claim 1, wherein the arc-extinguishing gas is SF6.