JPS613644U - Gas cutter - Google Patents

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

【図面の簡単な説明】[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 (4)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）軸方向に排出孔を有する第１の電弧電極と、この
第１の電弧電極の前記排出孔に対して相対的に挿脱され
て投入・しゃ断動作を行なう第２の電弧電極と、この第
２の電弧電極の先端部に設けられ、しゃ断動作時に前記
第２の電弧電極が前記第１の電弧電極から所定距離だ．
け離脱するまでの期間前記排出孔を閉塞する絶縁性の閉
塞部材と、しゃ断動作に前記第１の電弧電極と前記第２
の電弧電極との間に生成するアークへ消弧性ガスを高圧
化して吹付ける圧力生成部と、前記消弧性ガスの流路を
形成し前記消弧性ガスを前記排出孔へ導くノズルとを備
えたガズしゃ断器。(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）第１の電弧電極を固定側としたことを特徴とする
実用新案登録請求の範囲第１項記載のガスしゃ断器。(2) The gas breaker according to claim 1, characterized in that the first electric arc electrode is on the fixed side. （３）圧力生成部は、パツファシリングとパツファピス
トンによって構成されていることを特徴とする実用新案
登録請求の範囲第１項記載のガスしゃ断器。(3) The gas breaker according to claim 1, wherein the pressure generating section is constituted by a puffer seal and a puffer piston. （４）圧力生成部は、アークの熱エネルギによって蓄圧
されるオートパツファであることを特徴とする実用新案
登録請求の範囲第１項記載のガスや断器。 ′（５）消弧性ガスはＳＦ６であることを特徴とする実
用新案登録請求の範囲第１項記載のガスしゃ断器。(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.