JPH09171762A - Circuit breaker - Google Patents
Circuit breakerInfo
- Publication number
- JPH09171762A JPH09171762A JP34713596A JP34713596A JPH09171762A JP H09171762 A JPH09171762 A JP H09171762A JP 34713596 A JP34713596 A JP 34713596A JP 34713596 A JP34713596 A JP 34713596A JP H09171762 A JPH09171762 A JP H09171762A
- Authority
- JP
- Japan
- Prior art keywords
- arc
- movable contact
- contact base
- casing
- discharge port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/342—Venting arrangements for arc chutes
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は回路遮断器に係り、特に
消弧部の構成部材、絶縁、アーク駆動、及びアークエネ
ルギーに応じて発生する圧力上昇を防止するに好適な回
路遮断器に関する。
【０００２】
【従来の技術】従来の装置は、実開平１−６０４３９号
公報に開示されている。例えば、従来の回路遮断器は図
６に示すように、絶縁性のケーシング１の内部に消弧装
置５を装着するものが多いが、消弧装置内の発生アーク
により上昇した内圧が絶縁ケーシングに直接作用し、図
７に示すように矢印Ｐの内圧を受けてケーシング内壁の
破壊事故が多く発生している。従って、ケーシングは前
記内圧に耐える必要があり、遮断時の大電流に対応する
遮断能力を大きくするには、ケーシング材の強度を高め
るか、内圧の上昇を抑える等の対策が必要であった。こ
の手段として、例えばガラス強化プラスチックスの採
用、または射出成形品に比して高強度の圧縮成形品の採
用があり、また内圧低減策としては消弧室容積の拡大な
どが実施されている。
【０００３】
【発明が解決しようとする課題】図８に示すように、回
路遮断器のモールドケースは製造コストに占めるケース
部品費の比率が高く２５〜３５％にも及んでいる。ま
た、図９に示すように、圧縮成形品は強度は大である
が、部品費ａ２と材料費ａ１との差が大きく、ガラス繊
維強化成形品は部品費ｃ２とｃ１との関係もほぼ同様で
加工費が割高となることを示し、射出成形品は強度が小
さく部品費ｂ２と材料費ｂ１との差は小さい。このよう
に圧縮成形のケーシング製作は高強度であるが大幅なコ
ストアップ要因となり、容積の拡大は、回路遮断器の小
形化ひいては配電盤等の収納スペース減少に反すること
となり問題であった。また遮断時のアークを速かに所定
の方向に駆動、冷却し確実に消弧させるため、および、
遮断途中あるいは遮断後の電源と機構部との絶縁を確実
なものにするため、消弧板、駆動部材、絶縁板等が消弧
装置に配設されているが、部品点数の増加をもたらし構
造の複雑化による組立性低下の要因となる上、個々の部
材も大がかりなものとなりコストアップが避けられず、
遮断性能を確保し絶縁性の向上を図ることと原価の低減
とは二律背反的関係にあった。
【０００４】本発明は、消弧室をケーシングより高い耐
圧性と絶縁性を有する材料で形成するとともにアーク排
出口を可動接点台の開離動作が終了する位置の近傍に配
設してアークを効果的に冷却して排出口に導き、大電流
に対する遮断性に優れた回路遮断器を提供することを目
的としている。
【０００５】
【課題を解決するための手段】上記目的を達成するため
に、本発明は、回動自在に設けられた可動接点台と、固
定接点台と、事故電流発生に応動して可動接点台を固定
接点台から開極動作させる接点開閉機構と、接点開離時
に接点間に生じるアークを駆動または冷却させる消弧装
置とをケーシング内に収容してなる回路遮断器におい
て、ケーシング内に収納されて可動接点台と消弧装置と
をその内部に収納する消弧室を備え、消弧室はケーシン
グより高い耐圧性と絶縁性を有する材料で形成されると
ともに可動接点台の回動中心に面する側に形成された可
動接点台挿通部及び可動接点台挿通部に対向する側に形
成されたアーク排出口をそれぞれ備えて成り、アーク排
出口を可動接点台の開離動作が終了する位置の近傍に配
設したことを特徴とするものである。
【０００６】
【作用】消弧室はケーシング内で各極毎に配設されて耐
圧性を有する絶縁材により形成されているので、遮断時
に発生するアークによる内圧の上昇に耐えてケーシング
を保護することができる。これによりケーシングに強度
の小さい材料を使用することができる。また、アーク発
生時の内圧は消弧室で受けることができるので、ケーシ
ングの肉厚が薄くて済みケーシングの材料節減及び小型
軽量化を図ることができる。消弧室は可動接点台の回動
中心に面する側に形成された可動接点台挿通部及びこの
可動接点台挿通部に対向する側に形成されたアーク排出
口をそれぞれ備えているので、消弧室は可動接点台挿通
部と、アーク排出口とを除く周壁が閉鎖された構造にな
り、排出口以外からのアーク漏出を防止する。アーク排
出口は可動接点台の開離動作が終了する位置の近傍に配
設されるので可動接点台の開離動作終了までアークを消
弧板により冷却して排出口から排出することができる。
【０００７】
【実施例】以下、本発明の実施例を図１〜図５によって
説明する。本発明の第１実施例を図１〜図３により説明
する。図１は本実施例の消弧室内部を示す斜視図、図２
は図１の分解斜視図であって、事故電流発生に応動して
開極動作する可動接点台７とこれに対応する固定接点台
６との間に発生するアークは、そのエネルギーにより接
点６ａ、７ａ、接点台６、７および近接する部材を昇華
しつつ高温のガスを発生させる。接点６ａ、７ａ間に発
生するアーク柱は可動接点台７の開離動作に伴って伸延
し、アーク柱を取り巻くように配設された複数の磁性板
からなるコ字状の消弧板３により電源側へ駆動されつつ
冷却され、電源側に設けたアークガス排出口４から排出
される。伸延されたアーク柱は消弧板３により冷却さ
れ、より高いインピーダンスとなりアーク電流を抑制
し、ついには電流零点に達しいわゆる遮断に至る。アー
ク排出口は開離動作が終了する位置の近傍に配設される
のでアークの冷却に関与する消弧板の数が多くなるとと
もに可動接点台の開離動作終了までアークを消弧板によ
り冷却して排出口から排出することができ、アークは効
率的に冷却されて排出口４から排出される。
【０００８】図２に示されるように、本実施例における
消弧室は、各極ごとに高強度絶縁材からなる筐体２と内
部に収容される消弧板３により形成されており、アーク
発生時の内部ガス圧を筐体２で受け止めるため、回路遮
断器の外殻である絶縁ケーシング１はその強度を比較的
低減したもので構成することができる。図３に示すよう
に消弧室はその底部に固定接点が可動接点に対向するよ
う配設されるとともに筺体２の可動接点台の回動中心に
面する側に開口部８が開閉動作する可動絶縁台７の軌跡
に沿って形成される。この開口部８には可動接点台７が
挿通され、可動接点台挿通部として機能する。筐体２
は、開閉動作する可動接点台７の軌跡に沿って設けた開
口部８以外を閉鎖することにより、接点間に生ずるアー
クが開閉機構部側や操作把手側へ流出するのを抑制する
ことができる。また、固定接点台６の取付け部に、固定
接点６ａおよびそこに併設されるアークランナ９のみを
筐体２内に露出させ、その他の部分は絶縁板で覆われて
いる。固定接点６ａに近い側のアーク柱脚部は、発散す
ることなく速やかにアークランナ９に沿って移動し、ア
ークの集中が強化されるため、アークインピーダンスは
一層高まり通過電流の抑制がさらに強化される。
【０００９】本発明の第２実施例を図４により説明す
る。本実施例によれば、筐体２の内部に複数の消弧板支
持溝２ａを併設し、支持溝２ａを介して消弧板３を装着
することにより消弧室の一体化が図られる。またＵ字状
磁性体１０を筐体２の外側に装着し、可動接点台７の開
極動作は、Ｕ字状磁性体１０に沿った磁束により高速化
されるように構成するが、このＵ状磁性体１０を極力可
動接点台７の回動軌道に沿って近づければ、より高速な
開極動作が得られる。筐体２の一部にＵ字体ガイド２ｂ
を併設し筐体２の側壁を隔ててＵ字状磁性体１０を装着
することが好ましく、これにより、アーク接触によるイ
ンピーダンス低下を防止して確実な絶縁効果を得ること
ができる。さらに、図３に示されたものと同様に、筐体
２の開閉機構部側、すなわち開口部８の下部外側には凸
堤部１１が形成され、遮断時および遮断後の固定接点台
７と開閉機構部との絶縁が強化される。絶縁ケーシング
１、開閉機構部等は第１実施例と同様である。
【００１０】本発明の第３実施例を図５により説明す
る。本実施例は図５に示すように、筐体２の側壁と一体
的に可動接点台の軌跡に沿って対向する１対の防止壁１
２を設けることにより、コ字状の消弧板３の先端側への
アーク転移を防止することができ、アークの集中化と速
やかな移動を助成するのに有効である。絶縁ケーシング
１、開閉機構部等は第１実施例と同様である。
【００１１】以上の実施例において、筐体２は、少なく
とも２つの成型品の組立あるいは板状品の組立により構
成してもよく、例えばセラミック鋳型による成型品、若
しくは外殻を金属製とし内壁に絶縁性と耐アーク性の優
れた材料をコーティングしたものであってもよい。
【００１２】
【発明の効果】本発明によれば、可動接点台の開離動作
終了までアークを消弧板により冷却して排出口に導き、
大電流に対する遮断性に優れた回路遮断器を得ることが
できる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit breaker, and more particularly to a constituent member of an arc extinguishing section, insulation, arc drive, and pressure rise caused by arc energy. It relates to a circuit breaker suitable for prevention. A conventional device is disclosed in Japanese Utility Model Laid-Open No. 1-60439. For example, in many conventional circuit breakers, an arc extinguishing device 5 is mounted inside an insulating casing 1 as shown in FIG. 6, but the internal pressure raised by the arc generated in the arc extinguishing device is applied to the insulating casing. It acts directly, and as shown in FIG. 7, it receives the internal pressure of the arrow P and many accidents of destruction of the casing inner wall occur. Therefore, it is necessary for the casing to withstand the above-mentioned internal pressure, and in order to increase the breaking ability corresponding to a large current at the time of breaking, it is necessary to take measures such as increasing the strength of the casing material or suppressing an increase in the internal pressure. As this means, for example, glass reinforced plastics are adopted, or compression molded products having higher strength than injection molded products are adopted, and as a measure for reducing the internal pressure, expansion of the arc extinguishing chamber volume is implemented. As shown in FIG. 8, the molded case of the circuit breaker has a high case component cost to manufacturing cost ratio of 25 to 35%. Further, as shown in FIG. 9, the compression molded product has high strength, but the difference between the component cost a2 and the material cost a1 is large, and the glass fiber reinforced molded product has almost the same relationship between the component costs c2 and c1. Indicates that the processing cost becomes high, and the strength of the injection molded product is small, and the difference between the component cost b2 and the material cost b1 is small. As described above, the production of the compression-molded casing has a high strength, but causes a significant cost increase, and the increase in volume is a problem because it is against the downsizing of the circuit breaker and the reduction of the storage space of the switchboard and the like. In addition, in order to drive the arc at the time of breaking rapidly in a predetermined direction to cool and surely extinguish the arc, and
An arc extinguishing plate, a driving member, an insulating plate, etc. are provided in the arc extinguishing device in order to ensure the insulation between the power source and the mechanism part during or after the interruption, but the structure increases the number of parts. As a result, the assembly becomes difficult due to the complexity of the above, and the individual members also become large in size, which inevitably increases the cost.
There was a trade-off between securing the breaking performance and improving the insulation and reducing the cost. According to the present invention, the arc extinguishing chamber is formed of a material having higher pressure resistance and insulation than the casing, and the arc discharge port is disposed in the vicinity of the position where the opening / closing operation of the movable contact base is completed to generate the arc. It is an object of the present invention to provide a circuit breaker which is effectively cooled and led to the discharge port and has an excellent breaking property against a large current. In order to achieve the above object, the present invention provides a movable contact base rotatably provided, a fixed contact base, and a movable contact in response to the occurrence of an accident current. A circuit breaker in which a contact opening / closing mechanism for opening the base from a fixed contact base and an arc extinguishing device for driving or cooling the arc generated between the contacts when the contacts are opened are housed in the casing. And an arc extinguishing chamber for accommodating the movable contact base and the arc extinguishing device therein. The arc extinguishing chamber is formed of a material having higher pressure resistance and insulation than the casing, and is provided at the center of rotation of the movable contact base. The movable contact base insertion part formed on the facing side and the arc discharge port formed on the side facing the movable contact base insertion part, respectively, and the arc discharge position is the position where the opening operation of the movable contact base ends. Placed near It is characterized by the following. Since the arc-extinguishing chamber is arranged in each of the poles in the casing and made of an insulating material having pressure resistance, the arc-extinguishing chamber protects the casing against an increase in internal pressure due to an arc generated at the time of interruption. be able to. This makes it possible to use a material having low strength for the casing. Further, since the internal pressure when the arc is generated can be received in the arc extinguishing chamber, the thickness of the casing can be made thin, and the material of the casing can be reduced and the size and weight can be reduced. Since the arc extinguishing chamber is provided with the movable contact base insertion portion formed on the side facing the center of rotation of the movable contact base and the arc discharge port formed on the side facing the movable contact base insertion portion, respectively, The arc chamber has a structure in which the peripheral wall excluding the movable contact point insertion portion and the arc discharge port is closed to prevent arc leakage from other than the discharge port. Since the arc discharge port is disposed near the position where the opening / closing operation of the movable contact base ends, the arc can be cooled by the arc extinguishing plate and discharged from the discharge port until the opening / closing operation of the movable contact base ends. Embodiments of the present invention will be described below with reference to FIGS. A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing the interior of the arc extinguishing chamber of this embodiment, and FIG.
1 is an exploded perspective view of FIG. 1, in which an arc generated between a movable contact base 7 that opens in response to the occurrence of a fault current and a fixed contact base 6 corresponding to the movable contact base 7 has contact points 6a, A high temperature gas is generated while sublimating 7a, the contact bases 6 and 7 and the adjacent members. The arc column generated between the contacts 6a and 7a extends along with the opening / closing operation of the movable contact base 7, and the U-shaped arc extinguishing plate 3 composed of a plurality of magnetic plates is arranged so as to surround the arc column. It is cooled while being driven to the power supply side, and is discharged from the arc gas discharge port 4 provided on the power supply side. The extended arc column is cooled by the arc extinguishing plate 3, becomes a higher impedance, suppresses the arc current, and finally reaches the current zero point, so-called interruption. Since the arc outlet is located near the position where the opening operation ends, the number of arc extinguishing plates involved in cooling the arc increases and the arc is cooled by the arc extinguishing plate until the opening operation of the movable contact block ends. Then, the arc is efficiently cooled and discharged from the discharge port 4. As shown in FIG. 2, the arc-extinguishing chamber in this embodiment is formed by a casing 2 made of a high-strength insulating material for each pole and an arc-extinguishing plate 3 housed inside. Since the housing 2 receives the internal gas pressure at the time of generation, the insulating casing 1 which is the outer shell of the circuit breaker can be constructed with a relatively reduced strength. As shown in FIG. 3, the arc-extinguishing chamber has a fixed contact arranged at the bottom thereof so that the fixed contact faces the movable contact, and the opening 8 is opened and closed on the side facing the rotation center of the movable contact base of the housing 2. It is formed along the locus of the insulating base 7. The movable contact base 7 is inserted through the opening 8 and functions as a movable contact base insertion portion. Case 2
Is capable of suppressing the arc generated between the contacts from flowing out to the opening / closing mechanism part side or the operating handle side by closing the parts other than the opening part 8 provided along the locus of the movable contact base 7 that opens and closes. . Further, at the mounting portion of the fixed contact base 6, only the fixed contact 6a and the arc runner 9 provided there are exposed in the housing 2, and the other portions are covered with an insulating plate. The arc column base on the side closer to the fixed contact 6a quickly moves along the arc runner 9 without diverging and the concentration of the arc is strengthened, so that the arc impedance is further increased and the suppression of the passing current is further strengthened. . A second embodiment of the present invention will be described with reference to FIG. According to this embodiment, a plurality of arc extinguishing plate support grooves 2a are provided inside the housing 2, and the arc extinguishing plate 3 is mounted through the support grooves 2a, whereby the arc extinguishing chamber can be integrated. Further, the U-shaped magnetic body 10 is attached to the outside of the housing 2, and the opening operation of the movable contact base 7 is configured to be accelerated by the magnetic flux along the U-shaped magnetic body 10. If the magnetic body 10 is moved as close as possible along the rotation trajectory of the movable contact base 7, a faster opening operation can be obtained. A U-shaped guide 2b is provided on a part of the housing 2.
It is preferable that the U-shaped magnetic body 10 is mounted in parallel with the side wall of the housing 2 so as to prevent a decrease in impedance due to an arc contact and obtain a reliable insulating effect. Further, similar to that shown in FIG. 3, a convex bank portion 11 is formed on the opening / closing mechanism portion side of the housing 2, that is, on the outer side of the lower portion of the opening 8, and serves as a fixed contact base 7 during and after interruption. Insulation with the opening / closing mechanism is strengthened. The insulating casing 1, the opening / closing mechanism, etc. are the same as in the first embodiment. A third embodiment of the present invention will be described with reference to FIG. In the present embodiment, as shown in FIG. 5, a pair of prevention walls 1 facing the side wall of the housing 2 and facing each other along the locus of the movable contact stand.
By providing 2, it is possible to prevent the arc transfer to the tip side of the U-shaped arc extinguishing plate 3, and it is effective to promote the concentration and rapid movement of the arc. The insulating casing 1, the opening / closing mechanism, etc. are the same as in the first embodiment. In the above embodiment, the housing 2 may be constructed by assembling at least two molded products or plate-shaped products, for example, a molded product by a ceramic mold, or an outer shell made of a metal on the inner wall. It may be coated with a material having excellent insulation and arc resistance. According to the present invention, the arc is cooled by the arc extinguishing plate and guided to the discharge port until the opening / closing operation of the movable contact base is completed.
It is possible to obtain a circuit breaker excellent in breaking property against a large current.
【図面の簡単な説明】
【図１】は本発明の第１実施例における回路遮断器内部
の要部を示す斜視図である。
【図２】は本発明の第１実施例における回路遮断器の要
部の分解斜視図である。
【図３】は本発明の第１実施例における筐体の構造を示
す図で、同図（ａ）は側断面図、同図（ｂ）は可動接点
台側から見た斜視図である。
【図４】は本発明の第２実施例における筐体をアーク排
出口側から見た分解斜視図である。
【図５】は本発明の第３実施例における筐体の平断面図
である。
【図６】は従来の消弧装置とケーシングの斜視図であ
る。
【図７】は従来のケーシングの内圧発生状態を示す図表
である。
【図８】は消弧装置とケーシングの材料とコスト比を示
す図である。
【図９】は消弧装置とケーシングの材料の強度と費用の
関係を示す図である。
【符号の説明】
１・・・絶縁ケーシング ２・・・筐体
３・・・消弧板 ４・・・アーク排出口
６・・・固定接点台 ６ａ・・・固定接点
７・・・可動接点台 ７ａ・・・可動接点
８・・・開口部 ９・・・アークランナ
１０・・・Ｕ字状磁性体 １１・・・凸堤部BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a main part inside a circuit breaker according to a first embodiment of the present invention. FIG. 2 is an exploded perspective view of a main part of the circuit breaker according to the first embodiment of the present invention. 3A and 3B are views showing the structure of the housing in the first embodiment of the present invention, FIG. 3A is a side sectional view, and FIG. 3B is a perspective view seen from the movable contact base side. FIG. 4 is an exploded perspective view of a housing according to a second embodiment of the present invention as viewed from the arc outlet side. FIG. 5 is a plan sectional view of a housing according to a third embodiment of the present invention. FIG. 6 is a perspective view of a conventional arc extinguishing device and a casing. FIG. 7 is a chart showing the internal pressure generation state of a conventional casing. FIG. 8 is a view showing materials and cost ratios of the arc extinguishing device and the casing. FIG. 9 is a diagram showing a relationship between strength and cost of materials of an arc extinguishing device and a casing. [Explanation of Codes] 1 ... Insulating casing 2 ... Housing 3 ... Arc extinguishing plate 4 ... Arc discharge port 6 ... Fixed contact base 6a ... Fixed contact 7 ... Moving contact Platform 7a ... Movable contact 8 ... Opening 9 ... Arc runner 10 ... U-shaped magnetic material 11 ... Convex bank
Claims (1)
と、事故電流発生に応動して前記可動接点台を前記固定
接点台から開極動作させる接点開閉機構と、前記接点開
離時に接点間に生じるアークを駆動または冷却させる消
弧装置とをケーシング内に収容してなる回路遮断器にお
いて、前記ケーシング内に収納されて前記可動接点台と
前記消弧装置とをその内部に収納する消弧室を備え、該
消弧室は前記ケーシングより高い耐圧性と絶縁性を有す
る材料で形成されるとともに前記可動接点台の回動中心
に面する側に形成された可動接点台挿通部及び該可動接
点台挿通部に対向する側に形成されたアーク排出口をそ
れぞれ備えて成り、前記アーク排出口を前記可動接点台
の開離動作が終了する位置の近傍に配設したことを特徴
とする回路遮断器。[Claims] 1. Between the movable contact table rotatably provided, the fixed contact table, the contact opening / closing mechanism for opening the movable contact table from the fixed contact table in response to the occurrence of the accident current, and the contact between the contacts when the contact is opened. An arc extinguishing device for driving or cooling an arc generated in a casing, the arc extinguishing being housed in the casing and containing the movable contact base and the arc extinguishing device therein. A chamber, the arc-extinguishing chamber is made of a material having higher pressure resistance and insulation than the casing, and the movable contact point insertion portion formed on the side facing the center of rotation of the movable contact point and the movable contact point A circuit characterized by comprising arc discharge ports formed on the side facing the contact point insertion part, and the arc discharge ports are arranged in the vicinity of the position where the opening / closing operation of the movable contact point ends. Circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34713596A JPH09171762A (en) | 1996-12-26 | 1996-12-26 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34713596A JPH09171762A (en) | 1996-12-26 | 1996-12-26 | Circuit breaker |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1235592A Division JP2886903B2 (en) | 1989-09-13 | 1989-09-13 | Circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09171762A true JPH09171762A (en) | 1997-06-30 |
Family
ID=18388155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34713596A Pending JPH09171762A (en) | 1996-12-26 | 1996-12-26 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09171762A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007085209A1 (en) * | 2006-01-25 | 2007-08-02 | Oez S.R.O. | Arc extinguishing chamber for circuit breaker having an exhaust passage for the arc gas |
| CN101894715A (en) * | 2010-07-08 | 2010-11-24 | 江苏辉能电气有限公司 | Arc extinguishing chamber for low-voltage breaker |
| CN101986415A (en) * | 2010-11-11 | 2011-03-16 | 江苏辉能电气有限公司 | Arc extinguishing chamber of molded case low voltage circuit breaker |
| CN103383901A (en) * | 2012-05-04 | 2013-11-06 | 伊顿电气有限公司 | Integrated arc isolating device |
| WO2014170529A1 (en) * | 2013-04-15 | 2014-10-23 | Abb Oy | Electric switch housing |
| WO2016197310A1 (en) * | 2015-06-09 | 2016-12-15 | 伊顿电力设备有限公司 | Electrical arc energy absorber used for switch cabinet |
| CN107221483A (en) * | 2017-06-09 | 2017-09-29 | 德力西电气有限公司 | A kind of modularization arc-control device |
-
1996
- 1996-12-26 JP JP34713596A patent/JPH09171762A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007085209A1 (en) * | 2006-01-25 | 2007-08-02 | Oez S.R.O. | Arc extinguishing chamber for circuit breaker having an exhaust passage for the arc gas |
| CZ301022B6 (en) * | 2006-01-25 | 2009-10-14 | Oez, S. R. O. | Quenching chamber for electric apparatuses particularly for circuit-breakers |
| CN101894715A (en) * | 2010-07-08 | 2010-11-24 | 江苏辉能电气有限公司 | Arc extinguishing chamber for low-voltage breaker |
| CN101986415A (en) * | 2010-11-11 | 2011-03-16 | 江苏辉能电气有限公司 | Arc extinguishing chamber of molded case low voltage circuit breaker |
| CN103383901A (en) * | 2012-05-04 | 2013-11-06 | 伊顿电气有限公司 | Integrated arc isolating device |
| WO2014170529A1 (en) * | 2013-04-15 | 2014-10-23 | Abb Oy | Electric switch housing |
| CN105122409A (en) * | 2013-04-15 | 2015-12-02 | Abb有限公司 | Electric switch housing |
| US9478373B2 (en) | 2013-04-15 | 2016-10-25 | Abb Oy | Electric switch housing |
| CN105122409B (en) * | 2013-04-15 | 2017-07-11 | Abb 有限公司 | Electric switch housing |
| WO2016197310A1 (en) * | 2015-06-09 | 2016-12-15 | 伊顿电力设备有限公司 | Electrical arc energy absorber used for switch cabinet |
| CN107221483A (en) * | 2017-06-09 | 2017-09-29 | 德力西电气有限公司 | A kind of modularization arc-control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2526359C (en) | Arc chute and circuit interrupter employing the same | |
| US6573815B1 (en) | Circuit breaker | |
| JP3166890B2 (en) | Circuit breaker arc extinguishing device | |
| US20140061160A1 (en) | Single direct current arc chute, and bi-directional direct current electrical switching apparatus employing the same | |
| US6518530B2 (en) | Current-limiting contact arrangement | |
| RU2556240C2 (en) | Commutation switch having at least one single-pole tripping unit comprised of bridge contact and circuit breaker containing such commutation switch | |
| JPH09171762A (en) | Circuit breaker | |
| CN220020919U (en) | Switch | |
| JPH09171761A (en) | Circuit breaker | |
| JP4633326B2 (en) | Arc extinguishing device for low-voltage switchgear with attachment | |
| JP2886903B2 (en) | Circuit breaker | |
| JPH09171760A (en) | Circuit breaker | |
| CN112420462A (en) | Contact arc extinguishing device of circuit breaker | |
| JPH09171759A (en) | Circuit breaker | |
| JP2965332B2 (en) | Circuit breaker | |
| JP4153791B2 (en) | Low voltage power circuit breaker with arc extinguishing system | |
| CN106024478A (en) | Rotary switch equipped with arc-extinguishing apparatus | |
| US5259108A (en) | Method of assembling rotary puffer switch | |
| JP2965331B2 (en) | Circuit breaker | |
| CN213815895U (en) | Arc control device and circuit breaker | |
| CN218160070U (en) | Arc extinguishing device and isolating switch | |
| JP3380732B2 (en) | Circuit breaker | |
| CN216671540U (en) | Contact mechanism and circuit breaker | |
| CN218351400U (en) | Circuit breaker | |
| JP2000357428A (en) | Circuit breaker |