200933679 * 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種用於開關操作配送電線之電路之吹弧式氣 體斷路器，尤其侧於-種於斷路電流時產生之電弧上喷吹消弧 性絕緣氣體而斷路電流之吹弧式氣體斷路器。 【先前技術】 ❹ 一般而言，吹弧式氣體絕緣斷路器係於金屬製造之容器内配 置有藉由©枝可動主翻子及其鱗件構成讀路部，且填充 有絕緣性能及舰性能良好之从化硫（SFe)等絕緣氣體。、 眾所周知，斷路部包括：與通電導體相連之固定及可動主接 觸子目&舰可義之電弧接軒、構成贿路作鱗壓縮絕 緣氣體之魏I置的姐汽缸以及活塞、及祕魏之絕緣氣體 噴吹至電弧進行消弧的絕緣喷嘴等。 包括斷路部之電弧接觸子、可動主接觸子、及吹弧裝置之可 _整體上’是藉由操作器來驅動。此時，經吹雜置壓縮之絕 緣耽體自絕緣噴嘴向產生於各電弧接觸子部分之電弧上喷吹而消 弧，從而斷路電流。 、 因此 狀你★由於斷路部之斷雜力受_可動織體之操作器的 =Γ響’故較理想的是使用操作力較大的操作器。但是， ^之整體卩之雜而單純地僅增大操作11之操作力，則操作 D 構會轉較大且《亦增加，並且包麵路部在内整 4 200933679 體上的機械強度之可靠性亦會下降。 因此，於日本專利公開公報平成8 27_ 中提出有-歡弧錢觀 戊獻η 灿此丄 輯路裔，其採用可維持斷路部之斷 路能力、降低細⑽ ^械 绍绘齡敌盟尨你找丄、 j (對束。上述吹弧式 心緣斷路心使構成吹弧裝置之吹弧汽缸之剖 小兩種，同時將配置於内部的活塞為主，進而附加浮動舌夷 Ο 活用所公開者，是於斷路部之斷開作動_，於 =用子動縣之魏剖面積較大區域以較大壓縮力壓缩絕緣氣 體’並且讀路部之_軸 ，、 ，· ,^ L^ 义1皇王/古塞的壓縮面積較 小區域壓祕賴體㈣吹。藉麵使吹 靜 之敎氣體之反作用力Μ取 、置又$1來自電弧側 2體之反_力__變小，從柯防雖輯路部之斷 岡Tf聚/。 /外’於日本專利公開公報.細13號（專利文㈣中 k出有-種吹弧式氣體絕緣斷路器，其_即使縮小斷路部之固 定側與可_之各_子間之轉，村销崎錄，亦可藉 由縮小各躺子間之_，而減小操能之操作力之對策。9 上述吹弧式氣體絕緣斷路器之構成如下：於斷路部之固定側 與可動侧之各_子之間，同懦置__子卿成導電位之 保護電極（shield electnxie)，於移動可動主接觸子之同時，將 保護電極向可動主接觸子側移動。 上述專利文獻1及2巾所揭私魏錢魏緣斷路器可降 200933679 低操作器之麟力。但，斷路部之斷觀力受是否可將向各電弧 接觸子部分之電弧敎之絕緣氣體以極_間進行壓縮之影響。 換言之，若操作器之操作力相 t刀相问’則取決於構成吹弧裝置之吹弧 汽缸及活塞之大小。 斷路部之斷路能力之提高可單純地使用操作力較大的操作 器，或將吹弧裝置大型化並與較大操作II進行組合即可。但是， 任-情形吹亦存在弧式氣體絕緣斷㈣之整體大型化後經濟上變 得不能製狀_。因此’較好岐可於姐搞賴路器上使 用操作力經降低之操作器。 本發明之目的在於提供—種姐絲體絕賴㈣，其使用 操作力、雖低之操個’整體上進行小雜量化而可經濟地加以 製作。 【發明内容】 本發明之吹弧式氣體絕緣斷·係於填充有絕緣氣體之容器 =配置斷路部，上述斷路部至少包括··岐及可動主接觸子、固 定側及可細之電弧接觸子、具有吹弧汽缸及活塞之吹弧裝置、 及於電流斷輯驗上述吹弧裝置壓縮之絕緣氣时吹至上述電 弧接觸子間之電弧上的絕緣噴嘴，其舰在於，其細如下方式 而構成：於上舰緣噴嘴之前端部—體化形成鳄狀受壓部，上述 鳄狀受壓部可向_軸，且設置有與上顧定側之電弧接觸子 200933679 圓筒部具有於反絕緣喷嘴側形 弧之絕緣氣體臨時滯留於上述 圓筒部之受壓板之間，以高溫 •同心配置之ts®筒部，上述中空 成氣體放出孔之受壓板，噴吹至電 絕緣喷嘴之鍔狀受壓部與上述中空 氣體壓力加壓上述鳄狀受麗部。 較好的 ❹ ❹ 於斷路部之斷路財述巾I圓筒部之齡向的長度尺寸係以 筒部内，且到達斷糾’上述絕緣喷嘴之鳄狀受壓部位於中空圓 若如本發_丨置之前自中空_部拔出之方式而構成。 斷路時之_扣==錢觀緣_，職於協助電流 降低之操作器，而於二。:增加斷路速度，故可使用操作力經 進行小•量化，並： 之斷路性能之情況下從整體上 弧經濟地加以製作。因此，可進一步提高吹 孤式讀絕緣斷糾之糾 ^人 【實施方式】 〔實施例1〕 以下，使用圖1 5 m οσ 園6 s尤明適用本發明之縱型吹弧式氣體絕 緣斷路器之例。圖丨 ^ . 人弧式氣體絕緣斷路器係於填充絕緣氣體 之金屬制筒狀之容器1n + 裔10内配置斷路部2〇。 接觸^ 21 ^之^成如下：將包括流經通電電流之固定及可動主 與斷路作動時產生電弧之SI定側及可動側之電孤 接觸子23、24,設罟古切 为、'邑緣噴嘴27之吹弧氣缸25以及活塞26 7 200933679 .之吹孤裝置，配置於相對配置之固定側及可動側之筒狀導體28 29以及介在於其間之絕緣筒3〇之内部。 吹弧裝置之吹弧汽缸25介由絕緣杆31和臂犯與操作器（未 圖不）連接。作動上述操作器，使吹弧汽缸25向下方移動時，與 活塞協動而壓縮絕緣氣體。 +而且，連接於筒狀導體28之固定側之電弧接觸子23自絕緣 喷嘴27中拔㈣，迅速地將經壓縮之絕緣氣體向產生於固定側及 ❹可動側之電弧接觸子23、24間之電狐進行喷吹，於極短時間内將 電弧消弧。 位於斷路部2〇之固定侧及可動側之筒狀導體28、29與通電 導體11或12連接，分別經絕緣間隔片13、14導出外部電路。 本發明之斷路部20中，如圖2所詳細表示，絕緣喷嘴27部 分經特別創新，即於其前端部一體化形成鳄狀受虔部27A。而且， 設置於絕緣喷嘴27上之鍔狀受壓部27A可移動地扣合於中空圓筒 ❹ 部33。 上述中空圓筒部33係支持於筒狀導體28上，並且與固定側 之電弧接觸子同心配置。其-端之反絕料侧（圖巾為上端側） 設置有形成氣體放出開口 35之受壓板34。 藉此，驅動操作器並於斷路部20進行電流斷路時，使一部分 喷吹至電弧接觸子23、24間之電弧之絕緣氣體臨時滯留於絕緣喷 嘴27之鍔狀受壓部27A與中空圓筒部33之受壓板34之空間内。 ❹ ❹ 200933679 而且，藉由將滞留於設置有受壓 間部分之高溫氣體壓力施加至絕緣之空圓筒部33之空 加快向與臂32連接之絕緣杆、7之鳄狀受壓部27A，而 如下文所述，考慮到斷路部^移斷動路Γ操作器之操作力。 筒㈣術㈣⑽。，_=_蚊上述中空圓 度尺寸係按如下方式設定並製作 3 33之軸方向之長 嘴27之鍔狀__===之斷路點上絕緣喷 並且於到達斷路部2〇之_ 5 _呈扣合狀態， 職可自中空圓筒部33中拔絕緣喷嘴27之鳄狀受壓 再者，設置於中空圓筒部33之受壓板 ,«^^S(model)^(simuiati〇 ----緣象滞留與排氣之狀態而剩定中空圓筒部 = 考慮到絕緣喷嘴27之舰受壓部27A協助操作器之驅動操作力升之 程度而形成其大小。此外，絕緣喷嘴27之鳄狀受壓部 到筒狀導體2^絕緣筒3Q之内經尺寸，進而製作時固定於= 導體28來決疋文麼面積之大小。 就來自絕緣喷嘴27喷吹之絕緣氣體臨時滯留在中空圓筒部 33内，尚溫孤體壓力施加至鍔狀受壓部m協助操作器之操作力 之方面’使用圖2至圖5及圖6之圖表說明如下。 圖2至圖5絲錢路部之各狀態，此外，® 6絲示對應 於各狀態A至D (時間點tA至tD)之斷路部之可動側中之各衝程 9 200933679 之特徵線（characteristic 】ine)以、以電 徵線ps、可動側之電弧接觸子24之開閉線妮:··.差力特 百先，斷路部20之個接觸子進行接觸連接之圖2的投入位置 中’絕緣喷嘴27前端之鳄狀受_7a饭於離中空圓筒狀 =3之找板34較近之位置。此時，以圖6之時間點μ之斷路 部20之投入位置a令，由 ❹ ί m，目此以纖 “ 體C力不上升’且電弧接觸子24亦關閉。 吹弧3之斷路部2Q之可動部側成為斷開點之狀態，則 人弧4 25向下方軸，取及可動球 ==⑽4斷_，_魏彻:前 壓部27A立即自中糊部33之_34側分離。 弧汽紅^圖6之時間點α 2斷路部Μ怖獅B為止之吹 PS i 飾’U電弧裝置壓縮之魏_魏親力特徵線 ❹ h表不之氣體壓力亦逐漸上升。 中，^ ★之斷路°p 20之可動部側成為電流斷路點之狀態 則於二 =方移動’若電弧接觸子23與24間打開， 孤。而且，電弧裝_<絕緣_吹至電 徵線Ps所表示之氣SrJT電流斷路‘點c中，以氣體壓力特 電弧變成高溫而急迷上升 氣體經電弧裝置壓縮與喷吹至 固定侧之電弧接觸子23伴隨著絕緣噴嘴2?之移動由於喷 200933679 吹而成為高溫之絕緣氣體喷出至中空圓筒部33内，—部分自氣體 放出開口 35排出至容器内，但藉由設置於端部之受壓板料抑制 排氣。若高溫絕緣氣體臨時滯留於中空圓筒部33内，則内部壓力 急劇上升並施加於鳄狀受壓部27八，所以協助吹弧汽缸奶之移 動，並加勢操作器之操作力。 右變成最後的圖5所示之斷路部2Q之斷路位置之狀態，則絕 緣喷嘴27之鳄狀受壓部27A會自中空圓筒部33中完全拔出，所 以高溫絕緣氣體會迅速排出至容器i内或絕緣筒3〇内。於如此之 圖6之時間點tD之斷路位置D的狀態時，若絕緣氣體存在於排氣 過程中’域體壓力特徵線Ps所錢歷力亦會急速減小。 “如上所述，於絕緣噴嘴27之前端部設置鳄狀受壓部27A，且 f於具有受觀34之中空圓通部33上可移動地扣合鳄狀受壓部 則噴出其内部之絕緣氣體會臨時滞留，而内部壓力會上升。 ❾於中工圓筒部33内上升之内部壓力向吹弧汽缸25之移動方向加 壓^緣嗜嘴27之鳄狀受壓部27A。因此，於不損害斷路部之斷路 性能之情形下，操作H可·與先前相_作力較小之小型物， 因此可小型輕量化並經濟地進行製作。 本發明之吹弧式氣體絕緣斷路器係藉由將經吹弧裝置壓縮之 氣體噴吹至固定及可誠弧接觸子狀電弧的絕緣喷嘴之前 端4附近的結構加以變更，而活用喷吹至電弧後之絕緣氣體，協 助向電鱗路時之短路方向之操作力來提高斷路速度。藉此，而 200933679 可於吹弧錢賴_上制操作力姆低之操作 斷路部之斷路性能之情況下，整體 地進行製作，因峨麵。 #里200933679 * VI. Description of the Invention: [Technical Field] The present invention relates to a blown-type gas circuit breaker for a circuit for switching operation of a distribution electric wire, in particular, an electric arc blow-off blow generated when a breaking current is generated A blown-type gas circuit breaker with an arc insulating gas and a breaking current. [Prior Art] ❹ In general, a blown-type gas-insulated circuit breaker is constructed in a metal-made container with a movable section and its scales to form a readout section, and is filled with insulation properties and ship performance. A good insulating gas such as sulfur (SFe). As is known to all, the circuit breaking part includes: a fixed and movable main contact sub-head connected to the energizing conductor, and an arc-connected arc of the ship, the sister cylinder of the Wei I set which constitutes a briquette for the scale insulating gas, and the piston, and the secret of Wei An insulating nozzle that injects an insulating gas to an arc for arc extinguishing. The arc contact, the movable main contact, and the arc blowing device including the breaking portion can be driven by the operator. At this time, the insulating body which is blown and compressed is blown from the insulating nozzle to the arc generated in each arc contact sub-portion to cancel the arc, thereby breaking the current. Therefore, because of the breaking force of the breaking section, the operator of the movable woven body is slamming, so it is desirable to use an operator with a large operating force. However, the overall complexity of ^ is simply increasing the operating force of operation 11, the operation D structure will be larger and "increased, and the mechanical strength of the surface of the road surface is reliable." Sex will also decline. Therefore, in the Japanese Patent Gazette No. 8 27_, it is proposed that there is a singer-like sacred sacred 戊 灿 丄 丄 丄 丄 路 路 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Look for 丄, j (to the beam. The above-mentioned blow-off core breaks the core to make the arc-squeezing cylinders that form the arc-blowing device small, and at the same time, the pistons placed inside are mainly, and then the floating tongue is used. It is the disconnection of the breaking section _, _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 The king/Gusce's compressed area is smaller and the pressure is lower (4). The surface is used to make the reaction force of the blown gas, and the $1 from the arc side 2 is weaker. In addition to the reduction of the circuit breaker, there is a type of blown-type gas-insulated circuit breaker in the Japanese Patent Publication No. 13 (Patent Document (4)). The fixed side and the _ each of the _ sub-turns, the village sales record, can also reduce the operation by reducing the _ between the lie The countermeasure against the operation force. 9 The above-mentioned blown-type gas-insulated circuit breaker is composed of the following: between the fixed side and the movable side of the breaking portion, the protective electrode of the conductive position is placed at the same time (shield electnxie) At the same time as moving the movable main contact, the protective electrode is moved to the movable main contact side. The above-mentioned Patent Documents 1 and 2 disclose the private Wei Qianwei edge circuit breaker which can reduce the low operating force of 200933679. The breaking force of the breaking portion is affected by whether or not the insulating gas to the arc of each arc contact sub-portion is compressed by the pole. In other words, if the operating force of the operator is opposite to the equation, it depends on the constituent blowing. The size of the arc-squeezing cylinder and the piston of the arc device. The breaking ability of the breaking portion can be improved simply by using an operator with a large operating force, or by increasing the size of the arc-blowing device and combining it with the larger operation II. The arbitrarily-case blow also has an arc-type gas insulation break (4), which becomes economically unmanufacturable after the overall enlargement. Therefore, it is better to use an operator whose operating force is lowered on the stalker. Head It is to provide a kind of silky body (4), which can be economically produced by using an operation force and a low operation, which can be economically produced. The container is filled with an insulating gas=disconnecting portion, and the breaking portion includes at least a ··岐 and a movable main contact, a fixed side and a fine arc contact, a blowing device having a blowing cylinder and a piston, and a current An insulating nozzle that is blown onto the arc between the arc contact elements when the insulating gas compressed by the arc blowing device is broken, and the ship is formed by the following method: forming a crocodile at the front end of the upper ship edge nozzle The pressure-receiving portion, the crocodile-shaped pressure receiving portion may be disposed on the _ shaft, and is provided with an arc contact member on the upper side of the fixed side 200933679. The insulating portion of the cylindrical portion having the side arc of the anti-insulation nozzle is temporarily retained in the cylindrical portion. Between the pressure receiving plates, the ts® tube portion arranged at a high temperature and concentricity, and the pressure receiving plate of the hollow gas discharge hole, which is sprayed to the weird pressure receiving portion of the electrically insulating nozzle and the above-mentioned hollow gas pressure pressurizes the above Shaped by the Korea Ministry. ❹ 于 于 于 于 于 于 于 于 I I I I I I I I I I I I I I I I I I I I I I 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒 圆筒It is constructed by pulling out the hollow part before the device. When the circuit is broken, the deduction == Qian Guanyuan _, the operator who assists the current reduction, and the second. : Increase the breaking speed, so you can use the operating force to make small and quantifiable, and: in the case of the breaking performance, the arc is economically produced as a whole. Therefore, it is possible to further improve the correction of the blown-type read insulation and the correction method [Embodiment] [Embodiment 1] Hereinafter, the vertical blow-type gas-insulated circuit breaker of the present invention is applied by using the Figure 5 5 m οσ garden 6 s. An example of a device.丨 ^ . The human-arc gas-insulated circuit breaker is provided with a disconnecting portion 2 in a metal cylindrical container 1n + 10 filled with an insulating gas. The contact ^ 21 ^ ^ ^ is as follows: will include the fixed current flowing through the current and the active and active main and open circuit when the arc is generated on the SI fixed side and the movable side of the electric orphan contact 23, 24, set the ancient cut for, '邑The blow-off cylinder 25 of the edge nozzle 27 and the blow-off device of the piston 26 7 200933679 are disposed on the fixed-side and movable-side cylindrical conductors 28 29 of the opposite arrangement and the inside of the insulating cylinder 3 介 therebetween. The arc-blowing cylinder 25 of the arc-blowing device is connected to the operator (not shown) via the insulating rod 31 and the arm. When the above-described manipulator is actuated to move the arc-squeezing cylinder 25 downward, the insulating gas is compressed in cooperation with the piston. + Moreover, the arc contact 23 connected to the fixed side of the cylindrical conductor 28 is pulled out from the insulating nozzle 27, and the compressed insulating gas is rapidly transferred between the arc contact 23, 24 which is generated on the fixed side and the movable side of the crucible. The electric fox is blown and the arc is extinguished in a very short time. The cylindrical conductors 28 and 29 located on the fixed side and the movable side of the breaking portion 2 are connected to the energizing conductors 11 or 12, and the external circuits are led out through the insulating spacers 13, 14. In the breaking portion 20 of the present invention, as shown in detail in Fig. 2, the insulating nozzle 27 portion is particularly innovative, that is, the crocodile-shaped receiving portion 27A is integrally formed at the front end portion thereof. Further, the weir-shaped pressure receiving portion 27A provided on the insulating nozzle 27 is movably engaged with the hollow cylindrical portion 33. The hollow cylindrical portion 33 is supported by the cylindrical conductor 28 and is disposed concentrically with the arc contact of the fixed side. The pressure-reducing plate 34 which forms the gas discharge opening 35 is provided on the reverse side of the end (the upper side of the towel). Thereby, when the actuator is driven to open the current in the disconnecting portion 20, a part of the insulating gas which is blown to the arc between the arc contact members 23 and 24 is temporarily retained in the weir-like pressure receiving portion 27A and the hollow cylinder of the insulating nozzle 27. The portion of the portion 33 of the pressure plate 34 is in the space. ❹ ❹ 200933679 Further, the squirrel-shaped pressure receiving portion 27A of the insulating rod, 7 which is connected to the arm 32 is accelerated by applying the high-temperature gas pressure remaining in the portion where the pressure is applied to the insulating hollow portion 33, As described below, it is considered that the breaking portion moves the operating force of the actuator. Tube (four) surgery (four) (10). , _=_ mosquitoes The above-mentioned hollow circularity size is set as follows and the shape of the long mouth 27 of the axial direction of 3 33 is made __=== at the breaking point of the insulation spray and reaches the breaking part 2 _ 5 _ is in a snap-fit state, and the crocodile-shaped pressure of the insulating nozzle 27 can be extracted from the hollow cylindrical portion 33, and is placed on the pressure plate of the hollow cylindrical portion 33, «^^S(model)^(simuiati〇 The state of the image retention and the state of the exhaust is left in the hollow cylindrical portion = The size is formed in consideration of the degree to which the ship pressure receiving portion 27A of the insulating nozzle 27 assists the driving operation force of the operator. Further, the insulating nozzle The size of the area of the crocodile pressure-receiving portion of the 27-shaped squirrel-shaped conductor 2 to the insulating tube 3Q is fixed to the conductor 28 to determine the size of the area. The insulating gas injected from the insulating nozzle 27 is temporarily retained. In the hollow cylindrical portion 33, the application of the temperature of the isolated body pressure to the weir-shaped pressure receiving portion m assists the operation force of the operator is described below using the graphs of Figs. 2 to 5 and Fig. 6. Fig. 2 to Fig. 5 Each state of the money path portion, in addition, the ® 6 wire indicates each of the movable sides of the disconnecting portion corresponding to each of the states A to D (time points tA to tD) The characteristic line of stroke 9 200933679 (characteristic) ine is connected by the contact line of the electric contact line ps and the movable side of the arc contact 24 of the movable side: the contact of the contact part 20 of the disconnecting section 20 In the input position of Fig. 2, the crocodile shape of the tip end of the insulating nozzle 27 is close to the position of the finder plate 34 of the hollow cylindrical shape = 3. At this time, the breaking portion 20 at the time point of Fig. 6 is used. The position of the input position a is ❹ m 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧 电弧Arc 4 25 to the lower axis, take the movable ball == (10) 4 break _, _ Wei Che: The front pressure portion 27A is immediately separated from the _34 side of the middle paste portion 33. Arc steam red ^ Figure 6 time point α 2 breaking portion Μ 狮 狮 B B B B B B ' U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U The state is moved in the second=square if the arc contact 23 and 24 are opened, and the arc is mounted. Moreover, the arc is filled with _<insulation_blow to the electric sign Ps In the gas SrJT current interruption 'point c, the gas pressure is turned into a high temperature and the gas is rushed to rise. The arc contact is compressed by the arc device and blown to the fixed side of the arc contact 23 accompanied by the movement of the insulating nozzle 2 due to the spray 200933679 The high-temperature insulating gas is ejected into the hollow cylindrical portion 33, and is partially discharged from the gas discharge opening 35 into the container, but the exhaust gas is suppressed by the pressure-receiving sheet provided at the end portion. If the high-temperature insulating gas is temporarily retained In the hollow cylindrical portion 33, the internal pressure is sharply increased and applied to the crocodile-shaped pressure receiving portion 27, so that the movement of the arc-cylinder milk is assisted, and the operating force of the operator is increased. When the right side becomes the state of the disconnection position of the disconnecting portion 2Q shown in FIG. 5, the crocodile-shaped pressure receiving portion 27A of the insulating nozzle 27 is completely pulled out from the hollow cylindrical portion 33, so that the high-temperature insulating gas is quickly discharged to the container. i or inside the insulation tube 3〇. In the state of the disconnection position D at the time point tD of Fig. 6, if the insulating gas is present in the exhausting process, the energy of the domain pressure characteristic line Ps will rapidly decrease. "As described above, the crocodile-shaped pressure receiving portion 27A is provided at the front end of the insulating nozzle 27, and the insulating gas is ejected from the inside of the hollow circular through-hole portion 33 having the view 34 to detachably engage the crocodile-shaped pressure receiving portion. The internal pressure will rise and the internal pressure will rise. The internal pressure that rises in the cylindrical portion 33 of the intermediate work pressurizes the crocodile-shaped pressure-receiving portion 27A of the mouth of the blower cylinder 25 in the moving direction of the blow-up cylinder 25. Therefore, In the case where the breaking performance of the breaking portion is impaired, the operation H can be made smaller and smaller than the previous one, so that it can be made compact, lightweight, and economical. The blown gas insulated circuit breaker of the present invention is used by The gas compressed by the arc-blowing device is sprayed to the structure near the front end 4 of the insulating nozzle of the fixed and arc-contacting arc-shaped arc, and the insulating gas sprayed to the arc is used to assist the electric scale road. The operating force in the short-circuit direction is used to increase the breaking speed. In this way, 200933679 can be produced as a whole in the case of the breaking performance of the operating disconnection unit of the low-voltage operating system, because of the surface.
化， 於不損害 而可經濟 【圖式簡單說明】 圖1係表示適用本發明之吹弧式氣體絕緣斷路器之-實施例之概 略縱剖面圖。 © ® 2係表示圖i之斷路部中投入位置之狀態的概略縱剖面圖。 圖3係表賴2之斷路部中斷開時之狀態的概略縱剖面圖。 圖4係表示圖2之斷路部中電流斷路時之狀態的概略縱剖面圖。 圖5係表示圖2之斷路部中斷路位置之狀態的概略縱剖面圖。 圖6係表示自本發明之圖2至圖5之各種時間點中吹弧裝置之氣 體壓力與時間之關係的圖表。 ® 【轉树符號說明】 10 容器 11 吹弧軸 12 杆 13 絕緣間隔片 14 絕緣間隔片 20 斷路部 12 200933679 - 21 固定主接觸子 22 可動主接觸子 23 電弧接觸子 24 電弧接觸子 25 吹弧汽缸 26 活塞 27 絕緣喷嘴 © 27A 鍔狀受壓部 28 筒狀導體 29 筒狀導體 30 絕緣筒 31 絕緣杆 32 臂 33 中空圓筒部 〇 34 受壓板 35 氣體放出開口Fig. 1 is a schematic longitudinal cross-sectional view showing an embodiment of a blown-type gas insulated circuit breaker to which the present invention is applied. © ® 2 is a schematic longitudinal cross-sectional view showing the state of the input position in the disconnecting portion of Fig. i. Fig. 3 is a schematic longitudinal cross-sectional view showing a state in which the disconnecting portion of the surface 2 is disconnected. Fig. 4 is a schematic longitudinal cross-sectional view showing a state in which a current is broken in the disconnecting portion of Fig. 2; Fig. 5 is a schematic longitudinal cross-sectional view showing a state in which the disconnecting portion of Fig. 2 is interrupted. Fig. 6 is a graph showing the relationship between the gas pressure and the time of the arc blowing device at various points in time from Fig. 2 to Fig. 5 of the present invention. ® [Roller Symbol Description] 10 Container 11 Blowing Shaft 12 Rod 13 Insulating Spacer 14 Insulating Spacer 20 Circuit Breaker 12 200933679 - 21 Fixed Main Contact 22 Movable Main Contact 23 Arc Contact Sub 24 Arc Contact 25 Blowing Arc Cylinder 26 Piston 27 Insulation Nozzle © 27A Brake-pressed portion 28 Cylindrical conductor 29 Cylindrical conductor 30 Insulation cylinder 31 Insulation rod 32 Arm 33 Hollow cylindrical portion 受 34 Pressure plate 35 Gas discharge opening