JP3644061B2 - Rotating arc type gas circuit breaker - Google Patents

Rotating arc type gas circuit breaker Download PDF

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Publication number
JP3644061B2
JP3644061B2 JP33789894A JP33789894A JP3644061B2 JP 3644061 B2 JP3644061 B2 JP 3644061B2 JP 33789894 A JP33789894 A JP 33789894A JP 33789894 A JP33789894 A JP 33789894A JP 3644061 B2 JP3644061 B2 JP 3644061B2
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JP
Japan
Prior art keywords
arc
cylinder
extinguishing cylinder
circuit breaker
extinguishing
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.)
Expired - Lifetime
Application number
JP33789894A
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Japanese (ja)
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JPH08180772A (en
Inventor
賛恵光 林
政勝 後藤
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Yaskawa Electric Corp
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Yaskawa Electric Corp
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Filing date
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Priority to JP33789894A priority Critical patent/JP3644061B2/en
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Description

【０００１】
【産業上の利用分野】
本発明は、消弧性ガス中でアークを回転させて消弧する回転アーク形ガス遮断器に関するものである。
【０００２】
【従来の技術】
従来の回転アーク形ガス遮断器は、図２に示すように絶縁材よりなる円筒状の容器１の上端に導電材の支持台２に固定された固定電極３が設けられ、この固定電極にチューリップ接触子４が取付けてある。５は固定電極に取付けた外部端子、６は銅等の導電材よりなる円筒状の消弧筒で、チューリップ接触子４を囲み絶縁材の保持板７を介して固定電極３に取付けてある。消弧筒６の端部には導電材よりなる環状のアークランナ８が設けてある。９は消弧筒の外周に巻装したアーク駆動コイルで、一端をアークランナ８に接続し、他端を埋め込みナット１０を介して固定電極３に接続してある。１１は合成樹脂材よりなる保持体で、消弧筒６を囲みアーク駆動コイル９、埋め込みナット１０および固定電極を一体に埋設し、容器１に固定してある。１２は可動接触子（可動電極）である。このように構成した回転アーク形ガス遮断器の開路指令により可動接触子１２がチューリップ接触子４から開離すると、可動接触子１２とチューリップ接触子４との間にアークが発生する。このアークは可動接触子１２とチューリップ接触子４とのギャップが拡大するにしたがって伸長し、チューリップ接触子４上のアーク足がアークランナ８に移行する。アーク足がアークランナ上に移行すると、アーク電流は可動接触子１２から消弧性ガス中を通り、アークランナ８よりアーク駆動コイル９を経て埋め込みナット１０を介して導電材の支持台２に流れる。アーク電流がアーク駆動コイル９を流れると、アーク駆動コイル９に磁界が発生し、消弧筒６に２次電流が流れ、アーク駆動コイル９による磁界と２次電流による磁界との合成磁束がアークに作用し、アークを回転させながら電流零点において消弧するようにしている。
【０００３】
【発明が解決しようとする課題】
しかしながら、このような従来の回転アーク形ガス遮断器は、消弧筒６を固定電極３に絶縁材の保持板７を介して取付け、消弧筒の外周に巻装したアーク駆動コイル９の一端を消弧筒に設けたアークランナに接続し、他端を保持体に埋設した埋め込みナット１０に接続し、この埋め込みナットと固定電極の支持台とをボルトで固定して電気的に接続しており作業が煩雑となるほか、消弧筒が銅等の導電材で一体に成形されているため消弧筒に発生する２次電流の大きさは消弧筒の材質によって定まり、アーク電流と合成磁束との位相差を適正にすることが難しかった。
本発明は、このよう課題を解決するためになされたもので、アーク駆動コイルの接続を簡単にして、確実に遮断出来るようにすることを目的とする。
【０００４】
【課題を解決するための手段】
上記の目的を達成するために、本発明は、可動電極と、固定電極と、前記固定電極の端部に取付けたチューリップ接触子と、前記固定電極に取付けた導電性の材料からなる消弧筒と、前記消弧筒の外周に巻装したアーク駆動コイルと、前記消弧筒の下部に設けたアークランナとを備え、前記両電極間に発生したアークを前記アークランナに移行させ前記アーク駆動コイルにより回転させて消弧する回転アーク形ガス遮断器において、前記チューリップ接触子を囲み一端を前記固定電極に固定し、他端を前記消弧筒に固定した導電性の材料からなる筒体を設け、前記筒体と前記消弧筒との間に絶縁環を設け、前記アーク駆動コイルは前記筒体と前記消弧筒の外周に設け、コイルの一端を前記筒体に、他端を前記消弧筒にそれぞれ接続した構成にしている。
【０００５】
【作用】
アーク駆動コイルを筒体あるいは消弧筒への接続が簡単となり、筒体あるいは消弧筒の材質を異種の金属あるいは同種の金属を選択して筒体あるいは消弧筒に発生する２次電流の大きさを適切にすることが出来る。
【０００６】
【実施例】
本発明を図に示す実施例について説明する。図１はガス遮断器の要部断面図である。図２と同一ものには同一の符号を付して詳細な説明を省略する。１３は容器１にＯリング１４を介して固定した固定電極で、一端に外部端子５が取付けられ、他端にチューリップ接触子４が取り付けてある。１５は銅よりなる円筒状の筒体で、チューリップ接触子４を囲み一端を固定電極１３に固定し、他端に絶縁環１６が固定してある。１７は銅よりなる円筒状の消弧筒で、一端を絶縁環１６に固定し、他端にアークランナ８が固定してある。１８はアーク駆動コイルで、一端をアークランナ８に固定し、他端を筒体１５に固定してある。１９は筒体１５、絶縁環１６、消弧筒１７およびアーク駆動コイル１８を合成樹脂材で一体に成形してなる保持体である。製作するときは、筒体１５の一端に絶縁環１６を固定し、この絶縁環１６の上に消弧筒１７を固定する。つぎにアーク駆動コイル１８を筒体１５および消弧筒１７の外周に巻装し、一端を筒体１５に電気的に接続し他端を消弧筒１７に電気的に接続する。このように構成したものを図示しないモールド枠に固定し、合成樹脂を流して筒体１５、消弧筒１７およびアーク駆動コイル１８とを一体に保持体１９を構成する。このように構成したものにアークランナ８を取付け、固定電極１３にねじ締め固定してガス遮断器を構成している。このように構成したガス遮断器は遮断するに、可動接触子１２がチューリップ接触子４から開離して発生したチューリップ接触子４上のアーク足がアークランナ８に移行すると、アーク電流は可動接触子１２から消弧性ガス中を通り、アークランナ８よりアーク駆動コイル１８を経て固定電極１３に流れる。アーク電流がアーク駆動コイル１８を流れると、アーク駆動コイル１８に磁界が発生し、筒体１５および消弧筒１７に２次電流が発生する。アーク駆動コイル１８による磁界とこれら２次電流による磁界との合成磁束がアークに作用し、アークを回転させながら電流零点において消弧するようにしている。実施例では筒体１５を銅で構成し、消弧筒１７を銅で構成したが、これに限ることなく、筒体１５に銅を用い、消弧筒１７に真鍮を用い、あるいは筒体１５に銅を用い、消弧筒１７にステンレスを用いてもよい。これにより、アークに近い消弧筒１７では、誘起される２次電流を抑えてアークに作用する磁束の減少を抑え、アークから離れている筒体１５に誘起される２次電流によって最適な合成磁界とすることが出来る。このため、消弧に必要な磁束を減らすことなく、最適な合成磁界を得ることが出来る。
【０００７】
【発明の効果】
本発明は上述のように構成したので、アーク駆動コイルを筒体あるいは消弧筒への接続が簡単となり、筒体あるいは消弧筒の材質を異種の金属あるいは同種の金属を選択して筒体あるいは消弧筒に発生する２次電流の大きさを適切にすることが出来る。
【図面の簡単な説明】
【図１】本発明のガス遮断器の要部断面図
【図２】従来のガス遮断器の要部断面図
【符号の説明】
１ 容器
２ 支持台
３ 固定電極
４ チューリップ接触子
５ 外部端子
６ 消弧筒
７ 保持板
８ アークランナ
９ アーク駆動コイル
１０ 埋め込みナット
１１ 保持体
１２ 可動接触子
１３ 固定電極
１４ Ｏリング
１５ 筒体
１６ 絶縁環
１７ 消弧筒
１８ アーク駆動コイル
１９ 保持体 [0001]
[Industrial application fields]
The present invention relates to a rotating arc type gas circuit breaker that extinguishes an arc by rotating the arc in an arc extinguishing gas.
[0002]
[Prior art]
As shown in FIG. 2, a conventional rotating arc gas circuit breaker is provided with a fixed electrode 3 fixed to a conductive material support 2 at the upper end of a cylindrical container 1 made of an insulating material. A contact 4 is attached. Reference numeral 5 denotes an external terminal attached to the fixed electrode, and 6 denotes a cylindrical arc extinguishing tube made of a conductive material such as copper, which surrounds the tulip contact 4 and is attached to the fixed electrode 3 via a holding plate 7 made of an insulating material. An annular arc runner 8 made of a conductive material is provided at the end of the arc extinguishing cylinder 6 . Reference numeral 9 denotes an arc drive coil wound around the outer periphery of the arc extinguishing cylinder, one end of which is connected to the arc runner 8 and the other end is connected to the fixed electrode 3 via a buried nut 10. 11 is a holding member ing a synthetic resin material, the arc driving coil 9 surrounds the extinguishing tube 6, embedded integrally embedded nut 10 and the fixed electrode, is fixed to the container 1. Reference numeral 12 denotes a movable contact (movable electrode) . An arc is generated between the movable contact 12 and the tulip contact 4 when the movable contact 12 is separated from the tulip contact 4 by the opening command of the rotary arc type gas circuit breaker configured as described above. This arc expands as the gap between the movable contact 12 and the tulip contact 4 increases, and the arc foot on the tulip contact 4 moves to the arc runner 8. When the arc foot moves on the arc runner, the arc current passes through the arc extinguishing gas from the movable contact 12 and flows from the arc runner 8 through the arc drive coil 9 to the conductive material support 2 via the embedded nut 10. When the arc current flows through the arc driving coil 9, a magnetic field is generated in the arc driving coil 9, the secondary current flows through the extinguishing tube 6, synthetic flux of the magnetic field by the magnetic field and the secondary current by the arc driving coil 9 arc The arc is extinguished at the current zero point while rotating the arc.
[0003]
[Problems to be solved by the invention]
However, in such a conventional rotating arc type gas circuit breaker, one end of an arc driving coil 9 is attached to the fixed electrode 3 via an insulating holding plate 7 and wound around the outer periphery of the arc extinguishing cylinder. Is connected to the arc runner provided in the arc extinguishing cylinder, the other end is connected to the embedded nut 10 embedded in the holding body, and the embedded nut and the support base of the fixed electrode are fixed with a bolt and electrically connected. In addition to the work being complicated, the arc extinguishing cylinder is integrally formed of a conductive material such as copper, so the magnitude of the secondary current generated in the arc extinguishing cylinder is determined by the material of the arc extinguishing cylinder. It was difficult to make the phase difference from the proper.
The present invention has been made to solve such a problem, and an object of the present invention is to simplify the connection of the arc drive coil and to reliably cut it off.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an arc extinguishing cylinder comprising a movable electrode, a fixed electrode, a tulip contact attached to an end of the fixed electrode, and a conductive material attached to the fixed electrode. And an arc drive coil wound around the outer periphery of the arc extinguishing cylinder, and an arc runner provided at the lower part of the arc extinguishing cylinder, and the arc generated between the electrodes is transferred to the arc runner to In the rotating arc type gas circuit breaker that rotates and extinguishes, a tubular body made of a conductive material surrounding the tulip contact, fixing one end to the fixed electrode, and fixing the other end to the arc-extinguishing tube is provided, An insulating ring is provided between the cylindrical body and the arc-extinguishing cylinder, the arc driving coil is provided on the outer circumference of the cylindrical body and the arc-extinguishing cylinder, one end of the coil is the cylindrical body, and the other end is the arc-extinguishing the configuration in which each connected to the cylinder To have.
[0005]
[Action]
The arc drive coil can be easily connected to the cylinder or the arc-extinguishing cylinder, and the secondary current generated in the cylinder or the arc-extinguishing cylinder can be selected by selecting a different metal or the same type of metal as the cylinder or arc-extinguishing cylinder The size can be made appropriate.
[0006]
【Example】
The present invention will be described with reference to the embodiments shown in the drawings. FIG. 1 is a sectional view of an essential part of a gas circuit breaker. The same components as those in FIG. 2 are denoted by the same reference numerals, and detailed description thereof is omitted. Reference numeral 13 denotes a fixed electrode fixed to the container 1 via an O-ring 14, and an external terminal 5 is attached to one end and a tulip contact 4 is attached to the other end. Reference numeral 15 denotes a cylindrical cylinder made of copper, which surrounds the tulip contact 4 and has one end fixed to the fixed electrode 13 and the other end fixed to the insulating ring 16. Reference numeral 17 denotes a cylindrical arc extinguishing cylinder made of copper, one end of which is fixed to the insulating ring 16 and the other end of which is the arc runner 8. An arc drive coil 18 has one end fixed to the arc runner 8 and the other end fixed to the cylinder 15 . Reference numeral 19 denotes a holding body formed by integrally molding the cylindrical body 15 , the insulating ring 16 , the arc extinguishing cylinder 17 and the arc driving coil 18 with a synthetic resin material. When manufacturing, the insulating ring 16 is fixed to one end of the cylindrical body 15, and the arc extinguishing cylinder 17 is fixed on the insulating ring 16 . Next, the arc drive coil 18 is wound around the outer periphery of the cylinder 15 and the arc extinguishing cylinder 17 , one end is electrically connected to the cylinder 15 and the other end is electrically connected to the arc extinguishing cylinder 17 . What is configured in this manner is fixed to a mold frame (not shown), and synthetic resin is poured to form the holding body 19 integrally with the cylinder 15 , the arc extinguishing cylinder 17 and the arc drive coil 18 . The arc runner 8 is attached to what is configured as described above, and the gas breaker is configured by screwing and fixing to the fixed electrode 13 . To block the thus constituted gas circuit breaker, the arc feet on tulip contact 4 to the movable contact 12 has occurred away open from tulip contact 4 shifts to arc runner 8, arc current movable contact 12 From the arc runner 8 through the arc drive coil 18 to the fixed electrode 13. When the arc current flows through the arc driving coil 18, a magnetic field is generated in the arc driving coil 18, secondary current is generated in the cylindrical body 15 and the arc-extinguishing tube 17. A combined magnetic flux of the magnetic field generated by the arc driving coil 18 and the magnetic field generated by these secondary currents acts on the arc, and the arc is extinguished while rotating the arc. The cylindrical body 15 is made of copper in the embodiment, although the arc extinguishing tube 17 was made of copper, not limited to this, using copper the cylindrical body 15, with a brass extinguishing tube 17 or the tubular body 15, Copper may be used for the arc extinguishing cylinder 17 and stainless steel may be used . Thereby , in the arc extinguishing cylinder 17 close to the arc, the secondary current induced is suppressed to suppress the decrease of the magnetic flux acting on the arc, and the optimum synthesis is achieved by the secondary current induced in the cylinder 15 away from the arc. It can be a magnetic field. For this reason, an optimal composite magnetic field can be obtained without reducing the magnetic flux required for arc extinction.
[0007]
【The invention's effect】
Since the present invention is configured as described above, the arc drive coil can be easily connected to the cylinder or the arc-extinguishing cylinder, and the cylinder or arc-extinguishing cylinder is made of a different metal or the same type of metal. Alternatively, the magnitude of the secondary current generated in the arc extinguishing cylinder can be made appropriate.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a main part of a gas circuit breaker according to the present invention. FIG. 2 is a cross-sectional view of a main part of a conventional gas circuit breaker.
1 container
2 Support stand
3 Fixed electrode 4 Tulip contact
5 External terminal
6 Arc extinguishing cylinder
7 Holding plate 8 Arcrunner
9 Arc drive coil
10 Embedded nut
11 Holder
12 Movable contact 13 Fixed electrode
14 O-ring 15 Cylinder 16 Insulating ring 17 Arc extinguishing cylinder 18 Arc drive coil
19 Holder

Claims (1)

可動電極と、固定電極と、前記固定電極の端部に取付けたチューリップ接触子と、前記固定電極に取付けた導電性の材料からなる消弧筒と、前記消弧筒の外周に巻装したアーク駆動コイルと、前記消弧筒の下部に設けたアークランナとを備え、前記両電極間に発生したアークを前記アークランナに移行させ前記アーク駆動コイルにより回転させて消弧する回転アーク形ガス遮断器において、
前記チューリップ接触子を囲み一端を前記固定電極に固定し、他端を前記消弧筒に固定した導電性の材料からなる筒体を設け、前記筒体と前記消弧筒との間に絶縁環を設け、前記アーク駆動コイルは前記筒体と前記消弧筒の外周に設け、コイルの一端を前記筒体に、他端を前記消弧筒にそれぞれ接続したことを特徴とする回転アーク形ガス遮断器。 A movable electrode, a fixed electrode, a tulip contact attached to an end of the fixed electrode, an arc extinguishing cylinder made of a conductive material attached to the fixed electrode, and an arc wound around the outer circumference of the arc extinguishing cylinder A rotary arc gas circuit breaker comprising a drive coil and an arc runner provided at a lower portion of the arc extinguishing cylinder, wherein the arc generated between the electrodes is transferred to the arc runner and rotated by the arc drive coil to extinguish the arc. ,
A tubular body made of a conductive material surrounding the tulip contact and having one end fixed to the fixed electrode and the other end fixed to the arc-extinguishing cylinder is provided, and an insulating ring is provided between the cylinder and the arc-extinguishing cylinder The arc driving coil is provided on the outer periphery of the cylindrical body and the arc-extinguishing cylinder, and one end of the coil is connected to the cylindrical body, and the other end is connected to the arc-extinguishing cylinder. Circuit breaker .
JP33789894A 1994-12-26 1994-12-26 Rotating arc type gas circuit breaker Expired - Lifetime JP3644061B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33789894A JP3644061B2 (en) 1994-12-26 1994-12-26 Rotating arc type gas circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33789894A JP3644061B2 (en) 1994-12-26 1994-12-26 Rotating arc type gas circuit breaker

Publications (2)

Publication Number Publication Date
JPH08180772A JPH08180772A (en) 1996-07-12
JP3644061B2 true JP3644061B2 (en) 2005-04-27

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CN106960755B (en) * 2017-04-05 2019-05-03 平高集团有限公司 A kind of contact system and monopole arc-chutes and on-load switch using the contact system

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