JP2606247B2 - Gas insulated circuit breaker - Google Patents

Gas insulated circuit breaker

Info

Publication number
JP2606247B2
JP2606247B2 JP292088A JP292088A JP2606247B2 JP 2606247 B2 JP2606247 B2 JP 2606247B2 JP 292088 A JP292088 A JP 292088A JP 292088 A JP292088 A JP 292088A JP 2606247 B2 JP2606247 B2 JP 2606247B2
Authority
JP
Japan
Prior art keywords
shaft
closing
lever
spring
operating shaft
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
JP292088A
Other languages
Japanese (ja)
Other versions
JPH01183023A (en
Inventor
守 杉井
鉄馬 八木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meidensha Corp
Original Assignee
Meidensha Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Meidensha Corp filed Critical Meidensha Corp
Priority to JP292088A priority Critical patent/JP2606247B2/en
Publication of JPH01183023A publication Critical patent/JPH01183023A/en
Application granted granted Critical
Publication of JP2606247B2 publication Critical patent/JP2606247B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/666Operating arrangements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/666Operating arrangements
    • H01H2033/6667Details concerning lever type driving rod arrangements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02Details
    • H01H33/022Details particular to three-phase circuit breakers

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Description

【発明の詳細な説明】 A.産業上の利用分野 この発明は、ガス絶縁構造で小容量の電力に対応する
真空しゃ断器に関する。
Description: A. Industrial Field of the Invention The present invention relates to a vacuum circuit breaker having a gas insulation structure and capable of handling a small amount of electric power.

B.発明の概要 本発明は、ガス絶縁構造を組み入れた、小容量タイプ
の真空しゃ断器において、 ガス絶縁キュービクル等の匣体の開口部に、周囲を溶
接して気密を保つよう一体的に設けられる取付隔板に箱
状の操作軸収納箱部を設置し、この取付隔板の外気側側
面部に、投入ばね操作軸を回動自在に支受させて設置
し、投入ばね操作軸を、附勢力で所定方向に半周回動せ
しめるように投入ばねの一端部を装着し、さらに当該投
入ばね操作軸に、一体的に回動するよう投入カムを設置
するとともに、つめ車を設置して、このつめ車をつめを
往復駆動して間欠送りさせるモータを設置し、投入ばね
操作軸に、横に突設した支杆状の投入フックレバーを設
け、投入フックレバーの自由端部を投入フックで係脱可
能に支持し、取付隔板の外気側側面部に、しゃ断ばね操
作軸を回動自在に支受させて設置し、しゃ断ばね操作軸
に、横に突設した支杆状の引外しフックレバーを設け、
引外しフックレバーの自由端部を引外しフックで係脱可
能に支持し、しゃ断ばね操作軸の、投入カムに連動可能
な対応位置に、横に突設した支杆状の投入カム受けレバ
ーを設置し、しゃ断ばね操作軸を、附勢力で所定角回動
せしめるようにしゃ断ばねを設置し、さらにしゃ断ばね
操作軸に、連動用のリンク板を設置し、取付隔板の絶縁
ガス充填側面部側に対し、操作軸収納箱部内に、その両
横端板にそれぞれ設置した、気密を保つ構造の貫通軸受
と閉塞軸受とによって回動自在に支受される操作機軸を
設置し、操作機軸の貫通軸受からの外方突出端部に、リ
ンク平板を設け、このリンク平板を、リンク板と接続連
動するようにし、操作機軸の、操作軸収納箱部内の所定
箇所に、横に突設する支杆状の圧接ばねレバーを設置
し、圧接ばねレバーの自由端部に、圧接ばね及び絶縁ロ
ッドを介して、駆動リンク板を連動して所定角回動せし
めるよう接続し、駆動リンク板の回動動作によって、真
空インタラプタの操作杆を連動動作せしめるようにした
ので、気密を保つためのシール部分を、貫通軸受の回転
シール部分の信頼性の高いものにし、しかもシール長を
極力短くしたので、気密信頼性を飛躍的に向上し、さら
に、真空インタラプタの駆動操作機構として、操作軸に
固着されたレバー等を直接カム等を連動せしめるように
構成したので、機構構成を簡素化し小形化を図るととも
に動作上の長期信頼性を向上できるようにしたものであ
る。
B. Summary of the Invention The present invention relates to a small-capacity type vacuum circuit breaker incorporating a gas insulation structure, which is integrally provided at an opening of a housing such as a gas insulation cubicle so as to maintain an airtight by welding the periphery. A box-shaped operation shaft storage box portion is installed on the mounting partition plate, and a closing spring operating shaft is rotatably supported and installed on the outside air side surface portion of the mounting partition plate. Attach one end of the closing spring so that it can be rotated half a circle in a predetermined direction with the biasing force, further install the closing cam on the closing spring operation shaft so as to rotate integrally, and install a ratchet wheel, A motor for reciprocatingly driving the pawls to intermittently feed the pawls is provided, and a laterally protruding support rod-shaped closing hook lever is provided on the closing spring operation shaft, and the free end of the closing hook lever is set with the closing hook. Removably supported on the outside air side of the mounting plate , The pivot spring operating shaft is rotatably supported and installed, and the pivot spring operating shaft is provided with a laterally protruding rod-shaped trip hook lever,
The free end of the tripping hook lever is detachably supported by a tripping hook, and a laterally protruding rod-like input cam receiving lever is provided at the corresponding position of the breaking spring operating shaft that can be linked to the input cam. Installed, a spring is installed so that the spring operating shaft can be rotated by a predetermined angle with the biasing force, and a link plate for interlocking is installed on the spring operating shaft. On the side, the operating shaft, which is rotatably supported by the through-bearing and blocking bearing of the airtight structure, installed on both lateral end plates in the operating shaft storage box, A link flat plate is provided at an end protruding outward from the through bearing, and the link flat plate is connected to and linked with the link plate, and a support projecting laterally at a predetermined position in the operating shaft storage box portion of the operating machine shaft. A rod-shaped pressure spring lever is installed. The drive link plate is connected to the free end via a press-contact spring and an insulating rod so that the drive link plate can be rotated by a predetermined angle in conjunction with the drive link plate. As a result, the seal part for maintaining airtightness has been made highly reliable for the rotary seal part of the through bearing, and the seal length has been shortened as much as possible, so that the airtight reliability has been drastically improved. As a drive operation mechanism, a lever or the like fixed to the operation shaft is directly linked with a cam etc., so that the mechanism configuration is simplified and downsized, and long-term reliability in operation can be improved. is there.

C.従来の技術 今日、発電所から負荷の末端に至るまでの電力系統に
は、電路を開閉するため色々な種類及び容量のしゃ断器
が用いられている。
C. Prior Art Today, various types and capacities of circuit breakers are used in electric power systems from a power plant to an end of a load to open and close electric circuits.

そして、従来このようなしゃ断器の中には、ビルの受
電設備等に用いられる小容量のしゃ断器があり、このよ
うな小容量のしゃ断器には、真空開閉器(真空インタラ
プタ)を用いた真空しゃ断器がある。
Conventionally, among such circuit breakers, there is a small-capacity circuit breaker used for a power receiving facility of a building, and a vacuum switch (vacuum interrupter) is used as such a small-capacity circuit breaker. There is a vacuum circuit breaker.

この真空しゃ断器は、高真空に封じ込められたしゃ断
器である真空インタラプタと、これを絶縁ロッドを介し
て投入、引き外し操作するようにするための駆動機構部
と、この真空インタラプタに接続される主回路端子及び
断路部等を具備するものである。
This vacuum circuit breaker is connected to the vacuum interrupter, which is a circuit breaker enclosed in a high vacuum, a drive mechanism for inserting and removing the vacuum interrupter through an insulating rod, and the vacuum interrupter. It has a main circuit terminal, a disconnecting section, and the like.

さらに、この母線と接続される主回路端子部分及び断
路部分を、絶縁部材でカバーして、短絡事故等を防止す
るように構成していた。
Further, the main circuit terminal portion and the disconnection portion connected to the bus are covered with an insulating member so as to prevent a short circuit accident or the like.

D.発明が解決しようとする課題 上述のような従来の真空しゃ断器では、湿度の低い環
境で使用する場合には、その絶縁上問題はないが、例え
ば東南アジア等の高温多湿な環境で使用すると、この真
空しゃ断器の主回路導体部分と、これを取り巻く絶縁部
材との間でコロナ放電を生じるようになり、この状態が
続くと、やがては大きな短絡事故を起こすことがあると
いう問題があった。
D. Problems to be Solved by the Invention In the conventional vacuum circuit breaker as described above, when used in a low humidity environment, there is no problem in insulation, but when used in a high temperature and high humidity environment such as Southeast Asia, for example. However, a corona discharge occurred between the main circuit conductor portion of the vacuum circuit breaker and the insulating member surrounding the main circuit conductor portion, and if this state continued, there was a problem that a large short circuit might eventually occur. .

また、高温多湿な環境であっても、ガスしゃ断器を用
いれば、その導体部分がガス絶縁キュービクル内に密閉
されているので、絶縁上問題にならないわけであるが、
従来のガス絶縁構造の真空しゃ断器は全て大容量のもの
であり、小容量に対応するガス絶縁構造の真空しゃ断器
は皆無であって、需要に応えられないという問題があっ
た。
Also, even in a high-temperature and high-humidity environment, if a gas circuit breaker is used, its conductors are sealed in a gas-insulated cubicle, so it does not pose a problem in insulation.
Conventional gas-insulated vacuum circuit breakers all have a large capacity, and there is no gas-insulated vacuum circuit breaker corresponding to a small capacity, and there is a problem that demand cannot be met.

本発明は上述の点に鑑み、高温多湿な環境で使用して
も短絡事故等を起こす心配がなく、しかも小容量の電力
に対応できるガス絶縁しゃ断器を新たに提供することを
目的とする。
In view of the above, it is an object of the present invention to provide a new gas-insulated circuit breaker that does not cause a short circuit accident or the like even when used in a high-temperature and high-humidity environment and that can cope with small-capacity power.

E.課題を解決するための手段 本発明のガス絶縁しゃ断器は、 ガス絶縁キュービクル等の匣体の開口部に、周囲を溶
接して気密を保つよう一体的に設けられる取付隔板に箱
状の操作軸収納箱部を設置し、この取付隔板の外気側側
面部に、投入ばね操作軸を回動自在に支受させて設置
し、投入ばね操作軸を、附勢力で所定方向に半周回動せ
しめるように投入ばねの一端部を装着し、さらに投入ば
ね操作軸に、一体的に回動するよう投入カムを設置する
とともに、つめ車を設置して、このつめ車をつめを往復
駆動して間欠送りさせるモータを設置し、投入ばね操作
軸に、横に突設した支杆状の投入フックレバーを設け、
投入フックレバーの自由端部を投入フックで係脱可能に
支持し、取付隔板の外気側側面部に、しゃ断ばね操作軸
を回動自在に支受させて設置し、しゃ断ばね操作軸に、
横に突設した支杆状の引外しフックレバーを設け、引外
しフックレバーの自由端部を引外しフックで係脱可能に
支持し、しゃ断ばね操作軸の、投入カムに連動可能な対
応位置に、横に突設した支杆状の投入カム受けレバーを
設置し、しゃ断ばね操作軸を、附勢力で所定角回動せし
めるようにしゃ断ばねを設置し、さらにしゃ断ばね操作
軸に、連動用のリンク板を設置し、取付隔板の絶縁ガス
充填側面部側に対し、操作軸収納箱部内に、その両横端
板にそれぞれ設置した、気密を保つ構造の貫通軸受と閉
塞軸受とによって回動自在に支受される操作機軸を設置
し、操作機軸の貫通軸受からの外方突出端部に、リンク
平板を設け、このリンク平板を、リンク板と接続連動す
るようにし、操作機軸の操作軸収納箱部内の所定箇所
に、横に突設する支杆状の圧接ばねレバーを設置し、圧
接ばねレバーの自由端部に、圧接ばね及び絶縁ロッドを
介して、駆動リンク板を連動して所定角回動せしめるよ
う接続し、駆動リンク板の回動動作によって、真空イン
タラプタの操作杆を連動動作せしめるようにしたことを
特徴とする。
E. Means for Solving the Problems The gas insulated circuit breaker of the present invention is provided with a box-shaped mounting plate which is integrally provided at the opening of a housing such as a gas insulated cubicle so as to be hermetically sealed by welding the periphery. The operating shaft storage box is installed, and the closing spring operating shaft is rotatably supported and installed on the outside air side surface of the mounting partition plate. The closing spring operating shaft is half-turned in a predetermined direction by the urging force. Attach one end of the closing spring so that it can rotate, and further install a closing cam on the closing spring operating shaft so that it can rotate integrally, and install a ratchet and reciprocate the pawl with the pawl. A motor for intermittent feeding is installed, and a closing rod operating hook is provided on the closing spring operation shaft.
The free end of the closing hook lever is detachably supported by the closing hook, and the cut-off spring operating shaft is rotatably supported and installed on the outside air side surface of the mounting partition plate.
A laterally protruding rod-shaped trip hook lever is provided, the free end of the trip hook lever is detachably supported by a trip hook, and the corresponding position of the breaking spring operating shaft that can be linked to the closing cam. In addition, a lever-like input cam receiving lever protruding sideways is installed, and a breaking spring is installed so that the breaking spring operation shaft can be rotated by a predetermined angle with the urging force. The link plate is installed, and it is turned to the insulating gas filling side surface side of the mounting plate by the penetrating bearing and the closed bearing of the airtight structure, which are installed on both lateral end plates in the operation shaft storage box. An operating machine shaft that is movably supported is installed, and a link flat plate is provided at an end of the operating machine shaft that protrudes outward from the through bearing, and the link flat plate is connected to and linked with the link plate to operate the operating machine shaft. A support projecting laterally at a predetermined location in the shaft storage box A pressure contact spring lever is installed and connected to the free end of the pressure contact spring lever via a pressure contact spring and an insulating rod so as to rotate the drive link plate by a predetermined angle in conjunction therewith. Thus, the operating rod of the vacuum interrupter is operated in conjunction with it.

F.作用 上述のように構成することにより、気密を保つための
シール部分を、貫通軸受の回転シール部分の信頼性の高
いものにし、しかもシール長を極力短くして、気密信頼
性を飛躍的に向上するという作用を奏する。
F. Action By configuring as described above, the seal part for maintaining airtightness is made highly reliable for the rotary seal part of the through bearing, and the seal length is shortened as much as possible, dramatically improving airtight reliability. It has the effect of improving.

さらに、真空インタラプタの駆動操作機構における操
作軸に固着されたレバー等を直接カム等に連動させて動
作するので、機構構成を簡素化し小形化を図るとともに
動作上の長期信頼性を向上するという作用を奏する。
Furthermore, since the lever or the like fixed to the operation shaft of the drive operation mechanism of the vacuum interrupter is operated by directly interlocking with the cam or the like, the mechanism configuration is simplified and downsized, and the long-term reliability in operation is improved. To play.

G.実施例 以下、本発明のガス絶縁しゃ断器の一実施例を第1図
乃至第5図によって説明する。
G. Embodiment Hereinafter, an embodiment of the gas insulated circuit breaker of the present invention will be described with reference to FIGS.

第1図は、本例のしゃ断器要部の縦断側面図で、1は
ガス絶縁キュービクルの匣体で、その内部には絶縁ガス
であるSF6ガスを充填するものである。
FIG. 1 is a longitudinal sectional side view of a main part of the circuit breaker of the present embodiment. Reference numeral 1 denotes a box body of a gas insulating cubicle, which is filled with SF 6 gas which is an insulating gas.

また、この匣体1の開口部2を塞ぐように、溶接によ
って一体的に取り付けられる取付隔板3には、その両面
部に亘ってしゃ断器の構成部品を配置する。
Further, components of the circuit breaker are arranged on both sides of the mounting partition plate 3 which is integrally mounted by welding so as to close the opening 2 of the housing 1.

すなわち、第4図の要部概略斜視図に示すように、匣
体1の矩形状開口部2に気密を保つように溶着される取
付隔板3は、その開口部2より一回り大きな矩形板の下
部に、矩形箱状の操作軸収納箱部4を一体的に突出形成
して成るものである。そしてこの取付隔板3は、その収
納箱部4が突出する側面部が大気中に露呈するように設
置されるもので、その外気に向く側面部には、図に一点
鎖線Aで示す如く、真空インタラプタ駆動機器を配置す
るものとし、その取付隔板3の匣体1の内部に向く側面
部には、図に点線Bで示す如く、主回路機器及び真空イ
ンタラプタ等を設置するようにするものである。
That is, as shown in a schematic perspective view of a main part of FIG. 4, the mounting partition plate 3 welded to the rectangular opening 2 of the housing 1 so as to maintain the airtightness is a rectangular plate slightly larger than the opening 2. A rectangular box-shaped operation shaft storage box 4 is integrally formed at the lower part of the box. The mounting partition plate 3 is installed such that the side portion from which the storage box portion 4 protrudes is exposed to the atmosphere. On the side portion facing the outside air, as shown by a dashed line A in the drawing, A vacuum interrupter driving device is provided, and a main circuit device, a vacuum interrupter, and the like are installed on a side portion of the mounting partition plate 3 facing the inside of the housing 1 as shown by a dotted line B in the figure. It is.

このため、第1図乃至第3図に示すように、取付隔板
3の外気に向く側面部には、真空インタラプタの駆動機
器として、投入ばね操作機構部5としゃ断ばね操作機構
部6とを設置する。
For this reason, as shown in FIGS. 1 to 3, the closing spring operating mechanism 5 and the cut-off spring operating mechanism 6 as driving devices of the vacuum interrupter are provided on the side surface of the mounting partition plate 3 facing the outside air. Install.

この投入ばね操作機構部5は、次のように構成する。
すなわち、取付隔板3に突設した一対の支板7,7間に枢
着支持された投入ばね操作軸8の一端に節片9を固着
し、その節へ9の自由端部に、投入ばね10の一端部を枢
着する。
The closing spring operating mechanism 5 is configured as follows.
That is, a node piece 9 is fixed to one end of a closing spring operating shaft 8 pivotally supported between a pair of supporting plates 7, 7 protruding from the mounting partition plate 3. One end of the spring 10 is pivoted.

さらに、投入ばね操作軸8中間部には、投入カム11を
設け、これに次いでつめ車12を設置する。
Further, a closing cam 11 is provided at an intermediate portion of the closing spring operating shaft 8, and a ratchet wheel 12 is provided next to the closing cam 11.

このつめ車12は、つめ車送り機構を構成するためのも
ので、ギヤードモータ13の遊星歯車機構によって減速回
転駆動する回転軸部14の偏心位置に一端を枢着され往復
動されるつめ車15の自由端部を、このつめ車12の歯に係
合するようにしてある。
The ratchet wheel 12 serves as a ratchet wheel feed mechanism, and has one end pivotally mounted at an eccentric position of a rotary shaft portion 14 that is driven to reduce and rotate by a planetary gear mechanism of a geared motor 13, and is reciprocated. At its free end to engage the teeth of this ratchet 12.

なお、このつめ車12を設けた投入ばね操作軸8部分
は、図示しないワンウェイクラッチによって、図の矢印
C方向にのみ回動するようにしてある。
The closing spring operating shaft 8 provided with the ratchet wheel 12 is rotated only in the direction of arrow C in the figure by a one-way clutch (not shown).

また、この投入ばね操作軸8の中間部には、二枚の小
板を横方向に突出するよう固着し、それらの自由端部に
ローラフォロアを枢着して成る投入フックレバー16を設
置する。この投入フックレバー16は、ローラフォロア部
を投入フック17の一端に係止された状態で、投入ばね操
作軸8が矢印C方向に回動するのを阻止するためのもの
である。
At the intermediate portion of the closing spring operating shaft 8, two small plates are fixed so as to protrude laterally, and a closing hook lever 16 having a roller follower pivotally attached to their free ends is installed. . The closing hook lever 16 is for preventing the closing spring operation shaft 8 from rotating in the direction of arrow C in a state where the roller follower portion is locked to one end of the closing hook 17.

さらに、投入ばね操作軸8の他端部には、全体十字形
状の引外しフック18をその中間部で軸着する。
Further, a trip hook 18 having an overall cross shape is axially attached to the other end of the closing spring operating shaft 8 at an intermediate portion thereof.

この引外しフック18は、その図の上部の上突杆部18a
の自由端部を、引張コイルばね19で矢印D方向に附勢さ
れるようにするとともに、第3図に図示する所定位置で
止まるよう、その横突杆部18bをストッパ20で係止され
るようにする。
This tripping hook 18 is an upper protruding rod portion 18a in the upper part of the drawing.
Is urged in the direction of arrow D by a tension coil spring 19, and its laterally projecting rod portion 18b is locked by a stopper 20 so as to stop at a predetermined position shown in FIG. To do.

このように構成した投入ばね操作機構5に対応して設
置されるしゃ断ばね操作機構部6は、次のように構成す
る。
The shut-off spring operating mechanism 6 installed corresponding to the closing spring operating mechanism 5 configured as described above is configured as follows.

すなわち、投入ばね操作軸8と平行にしゃ断ばね操作
軸21を回動自由に支持して設置し、前述の引外しフック
18に対応する位置に、横方向に突出するように固着した
2枚の小板とローラフォロアとより成る引外しフックレ
バー22を設置する。
That is, the breaking spring operating shaft 21 is installed so as to be freely rotatable in parallel with the closing spring operating shaft 8, and the above-mentioned trip hook is provided.
At a position corresponding to 18, a trip hook lever 22 composed of two small plates fixed so as to protrude in the lateral direction and a roller follower is installed.

そして、この引外しフックレバー22のローラフォロア
部が引外しフックの下突杆部18cに係止された状態で、
しゃ断ばね操作軸21が矢印E方向に回動するのを阻止可
能に構成する。
Then, in a state where the roller follower portion of the trip hook lever 22 is locked to the lower projecting rod portion 18c of the trip hook,
The breaking spring operating shaft 21 can be prevented from rotating in the direction of arrow E.

また、しゃ断ばね操作軸21の、前述した投入カム11に
対応する位置に、横方向に突出するよう固着した2枚の
小板と、ローラフォロアとより成る投入カム受けレバー
23を設置する。そして、投入カム11の回動動作によっ
て、投入カム受けレバー23を蹴り動かし、しゃ断ばね操
作軸21の矢印F方向に所定角度回動せしめ得るようにす
る。
An input cam receiving lever comprising a roller follower and two small plates fixed to the breaking spring operation shaft 21 at a position corresponding to the input cam 11 so as to protrude in the lateral direction.
Install 23. Then, by the turning operation of the input cam 11, the input cam receiving lever 23 is kicked, so that the breaking spring operation shaft 21 can be turned by a predetermined angle in the direction of arrow F.

また、しゃ断ばね操作軸21には、その横方向に突出す
るように、小板状のばねレバー24の一端部を固着する。
そして、ばねレバー24の他端部には、しゃ断ばね25の一
端を係着して、しゃ断ばね操作軸21を矢印E方向に回動
するよう附勢させるようにする。
Further, one end of a small plate-shaped spring lever 24 is fixed to the breaking spring operation shaft 21 so as to protrude in the lateral direction.
One end of a breaking spring 25 is engaged with the other end of the spring lever 24 so as to urge the breaking spring operating shaft 21 to rotate in the direction of arrow E.

また、しゃ断ばね操作軸21の、第3図の左側端部に
は、真空インタラプタ26の操作機軸部を連動させるため
の小板状なリンク板27の一端部を固着する。
Further, one end of a small plate-like link plate 27 for linking the operating device shaft of the vacuum interrupter 26 is fixed to the left end of the breaking spring operating shaft 21 in FIG.

そして、この横に突出したリンク板27の自由端部には
リンク支杆28の一端部を枢着し、そのリンク支杆28の他
端部を、操作機軸29の一端部に設置される略三角形状な
リンク平板30の所定各部に枢着する。
One end of a link support rod 28 is pivotally attached to a free end of the laterally protruding link plate 27, and the other end of the link support rod 28 is substantially installed at one end of an operating machine shaft 29. It is pivotally attached to predetermined portions of the triangular link plate 30.

本例では、3つの真空インタラプタ26、26、26部分
を、取付隔板3で隔絶されたガス絶縁キュービクルの匣
体1内に設置するものである。このため、真空インタラ
プタ操作機軸部の操作機軸29を操作軸収納箱部4の内部
に設置するようにする。
In the present embodiment, three vacuum interrupters 26, 26, 26 are installed in the casing 1 of a gas-insulated cubicle separated by the mounting partition plate 3. For this reason, the operating shaft 29 of the vacuum interrupter operating shaft is installed inside the operating shaft storage box 4.

従って、操作軸収納箱部4の両横端板4a,4bにそれぞ
れ設置した貫通軸受31と、閉塞軸受32との間に渡して支
受せしめるものである。
Therefore, it is supported between the penetrating bearing 31 and the closing bearing 32 which are respectively installed on both the lateral end plates 4a and 4b of the operation shaft storage box portion 4.

すなわち、第5図にも示すように、丸棒状の操作機軸
29の一端部を貫通させた状態で支受する貫通軸受31は、
軸受筒体33と、ロックナット体34とを組み合わせて構成
する。この軸受筒体33は、中空円筒状の筒状胴部33aの
一端部にフランジ部33bを一体的に形成して成り、その
筒状胴部33aの外周面部には、ロックナット体34を螺挿
するためのねじ溝が切ってある。
That is, as shown in FIG.
The penetrating bearing 31 which is supported in a state where one end of 29 is penetrated,
The bearing cylinder body 33 and the lock nut body 34 are combined. The bearing cylinder 33 is formed by integrally forming a flange 33b at one end of a hollow cylindrical tubular body 33a, and a lock nut body 34 is screwed on the outer peripheral surface of the cylindrical body 33a. There is a thread groove for insertion.

また、取付隔板3に対しては、それぞれ溶接により両
横端板4a、4bを固着した後、各横端板4a、4bに、それぞ
れ機械加工で所定の軸線に適合するよう適正位置形状の
軸開口部35及びその周端面部の平面を精密加工してお
く。(本例では軸開口部35のすきまを0.1mmに設定し
た) そして、一方の横端板4aの軸開口部35に、図示するよ
うに、軸受筒体33の筒状胴部33aを挿通し、フランジ部3
3bが軸開口部35の周囲に密着した状態で、軸受筒体33に
螺挿したロックナット体34により、軸開口部35を挟み付
けて嵌め合わせ、適正位置に固定する。なお、フランジ
部33bの軸開口部35のの密着面部には、リング状の溝を
切り、この部所にOリング36を設置して気密を保つよう
にする。
Further, after fixing both lateral end plates 4a, 4b to the mounting partition plate 3 by welding, the lateral end plates 4a, 4b are appropriately machined to have a proper position and shape so as to conform to a predetermined axis. The flat surface of the shaft opening 35 and the peripheral end surface thereof is precision machined. (In this example, the clearance of the shaft opening 35 is set to 0.1 mm.) Then, as shown, the cylindrical body 33a of the bearing cylinder 33 is inserted into the shaft opening 35 of the one lateral end plate 4a. , Flange 3
In a state where 3b is in close contact with the periphery of the shaft opening 35, the shaft opening 35 is sandwiched and fitted by the lock nut body 34 screwed into the bearing cylinder 33, and fixed at an appropriate position. In addition, a ring-shaped groove is cut in a contact surface portion of the shaft opening 35 of the flange portion 33b, and an O-ring 36 is provided at this portion to maintain airtightness.

また、このように設置される軸受筒体33の中空円孔37
内におけるフランジ部寄りの部位には、ベアリング38を
設置する。そして、この中空円孔37内に貫通させられる
操作機軸29の一端部をこのベアリング38の内輪に嵌めて
回動自在に支受するようにする。
In addition, the hollow circular hole 37 of the bearing cylinder 33 installed in this manner.
A bearing 38 is installed in a portion near the flange portion in the inside. Then, one end of the operating device shaft 29 penetrated into the hollow circular hole 37 is fitted to the inner ring of the bearing 38 so as to be rotatably supported.

また、筒状胴部33a部分に対応する中空円孔37a部分
は、操作機軸29との間に所定厚さの、リング状間隙を形
成するようにする。そして、筒状胴部33aの自由端部の
隙間を塞ぐように押える座金39に続き、中空円孔37a内
部に順次止め輪40をおき、ディスタンス41をおき、SKy
パッキン42をおき、これがスライト方向に移動しないよ
うに、ベアリング38との間にディスタンス41をおいて構
成し、相対的に回動する操作機軸29と、貫通軸受31との
間の気密を保つようにする。
The hollow circular hole 37a corresponding to the cylindrical body 33a forms a ring-shaped gap having a predetermined thickness with the operating device shaft 29. Then, following the washer 39 which presses so as to close the gap at the free end of the cylindrical body 33a, a retaining ring 40 is sequentially placed inside the hollow circular hole 37a, a distance 41 is placed, and SKy
A packing 42 is provided, and a distance 41 is provided between the packing 38 and the bearing 38 so that the packing 42 does not move in the sliding direction, so that airtightness is maintained between the operating machine shaft 29 that rotates relatively and the through bearing 31. To

なお、この貫通軸受30から外方に突出した操作機軸29
の一端部には、スプライン29bを形成し、前述したリン
ク平板30の中央部のスプライン穴を挿通してスプライン
結合して一体的に回動するようにするとともに、この操
作機軸29の段部29aとベアリング38の内輪端部との所に
嵌通したディスタンス65にリンク平板30を合わせ、これ
をボルト67で固締される押え板66で挟み付けるようにし
て、スラスト方向に動かないように固定する。このよう
にリンク平板30を強固に固定することにより、このリン
ク平板30の動作時に、ダンパ63又はストッパ64との当た
り具合を安定させ、その当たり箇所を一定にすることに
より、この部材の長寿命化を図ることができるものであ
る。
It should be noted that the operating machine shaft 29 protruding outward from the through bearing 30
A spline 29b is formed at one end of the link plate 30. The spline hole at the center of the link plate 30 is inserted through the spline hole so as to be spline-coupled to rotate integrally. Align the link flat plate 30 with the distance 65 inserted between the bearing and the inner ring end of the bearing 38, and clamp it with a holding plate 66 that is fastened with bolts 67 so that it does not move in the thrust direction I do. By firmly fixing the link flat plate 30 in this way, during operation of the link flat plate 30, the hitting condition with the damper 63 or the stopper 64 is stabilized, and the hitting position is fixed, thereby prolonging the life of this member. Can be achieved.

また、この操作機軸29の他端部は、他方の横端板4bに
設置した閉塞軸受32で支受する。
The other end of the operating machine shaft 29 is supported by a closed bearing 32 installed on the other lateral end plate 4b.

この閉塞軸受32は、軸受ボルト体43と、ロックナット
体34とを組み合わせて構成する。この軸受ボルト体43
は、大形のボルト状部材であって、その外周部にねじ溝
を設けるとともに、その軸芯に沿って、有底の軸孔44を
穿設して成る。
The closed bearing 32 is configured by combining a bearing bolt body 43 and a lock nut body. This bearing bolt body 43
Is a large bolt-shaped member, which is provided with a thread groove on the outer periphery thereof and a bottomed shaft hole 44 formed along the axis thereof.

そして、この軸受ボルト体43の軸部43aを、他方の横
端板4aの軸開口部33に通し、そのフランジ部43bが軸開
口部35の周囲に密着した状態で、その軸部43aにロック
ナット体34を螺挿して、軸開口部35に適正位置状態で嵌
め合わせる。
Then, the shaft portion 43a of the bearing bolt body 43 is passed through the shaft opening 33 of the other lateral end plate 4a, and is locked to the shaft portion 43a in a state where the flange portion 43b is in close contact with the periphery of the shaft opening 35. The nut body 34 is screwed and fitted into the shaft opening 35 in an appropriate position.

なお、フランジ部33bの軸開口部35との密着面部に
は、リング状の溝を切りこれに、Oリング34を設置し
て、気密を保つようにする。
In addition, a ring-shaped groove is cut in the surface of the flange portion 33b in close contact with the shaft opening 35, and an O-ring 34 is installed in the groove to maintain airtightness.

また、このように設置する軸受ボルト体43の軸孔44内
には、ベアリング38を設置し、その内輪に、操作機軸29
の他端部の段付き軸部29aを嵌挿して、回動自由に支受
せしめるものである。
Also, a bearing 38 is installed in the shaft hole 44 of the bearing bolt body 43 installed in this way, and the operating machine shaft 29
The stepped shaft portion 29a at the other end is inserted and rotatably supported.

なお上述のように、両横端板4a,4bの適正位置に各々
開口した軸開口部35,35に、それぞれ貫通軸受31と、閉
塞軸受32とを装着するように構成したので、これらに両
端部分を支受される操作機軸29の芯出しを、極めて正確
かつ容易に行える。
As described above, the penetrating bearings 31 and the closing bearings 32 are respectively mounted on the shaft openings 35, 35 that are respectively opened at appropriate positions of the two lateral end plates 4a, 4b. The centering of the operating device shaft 29 whose part is supported can be performed extremely accurately and easily.

操作軸収納箱部4内に設置した操作機軸29の中間所定
3箇所には、それぞれ、軸棒から直角方向に突出する圧
接ばねレバー45、45、45を設置する。
Press-contact spring levers 45, 45, 45 protruding from the shaft bar in a direction perpendicular to the shaft bar are respectively installed at predetermined three places in the middle of the operating machine shaft 29 installed in the operating shaft storage box portion 4.

そして、各圧接ばねレバー45には、各々圧接ばね46を
介して一体形絶縁ロッド47を接続する。
Then, an integral insulating rod 47 is connected to each press contact spring lever 45 via a press contact spring 46.

この一体形絶縁ロッド47の先端部は、真空インタラプ
タ作動機構の芯出しのため大形にした三角形状の駆動リ
ンク板48の下方の一つの角部に枢着する。この駆動リン
ク板48のもう一方の角部は、支持金具49部分に枢着し、
残りの角部部分を真空インタラプタ26の可動リード操作
杆50の自由端部に枢着する。これとともに、支持金具49
に一端部を枢着した補助レバー62の他端部を、やはり操
作杆50の自由端部に枢着して、回転半径の大きな駆動リ
ンク板48が回動して操作杆50を上下動させるのをさらに
スムーズに行えるようにする。
The distal end of the integral insulating rod 47 is pivotally attached to a lower corner of a large triangular drive link plate 48 for centering the vacuum interrupter operating mechanism. The other corner of the drive link plate 48 is pivotally attached to the support fitting 49,
The remaining corner portion is pivotally attached to the free end of the movable lead operating rod 50 of the vacuum interrupter 26. At the same time, support bracket 49
The other end of the auxiliary lever 62 whose one end is pivotally connected to the free end of the operating rod 50, and the drive link plate 48 having a large turning radius is rotated to move the operating rod 50 up and down. To do things more smoothly.

このように操作される各真空インタラプタ26は、第1
図に示すように取付隔板3に設置する。すなわち、この
取付隔板3に外部との連通孔を設けないようにするため
に、その匣体内部側の側面部に所定間隔を置いて、平板
状の補助支板51を固着する。
Each vacuum interrupter 26 operated in this manner is
As shown in FIG. That is, in order to prevent the communication hole with the outside from being provided in the mounting partition plate 3, the flat auxiliary support plate 51 is fixed to the side surface portion on the inner side of the casing at a predetermined interval.

そして、この補助支板51に、位置決めピン58を用いて
位置決めされた各碍子52を螺着し、さらに、各碍子52に
それぞれ上下の支持金具49、53を螺着する。
The insulators 52 positioned using the positioning pins 58 are screwed to the auxiliary support plate 51, and the upper and lower support fittings 49, 53 are screwed to the insulators 52, respectively.

図で上部の支持金具53には、主回路導体である上部導
体54と真空インタラプタ26の上部とを螺着して接続す
る。なお、上部の支持金具53と下部の支持金具49との間
に絶縁支持板59を渡して補強構造としている。
In the figure, an upper conductor 54, which is a main circuit conductor, and an upper portion of the vacuum interrupter 26 are connected by screwing to a support fitting 53 at an upper portion in the figure. In addition, an insulating support plate 59 is provided between the upper support member 53 and the lower support member 49 to form a reinforcing structure.

また、図で下部の支持金具49には、コンタクトケース
56を螺着し、これとともに、補強用絶縁物であるディス
タンス61を介して、主回路導体である下部導体55を螺着
固定する。この上部及び下部導体54,55は、図示しない
盤側導体接続時と誤差による反力が極柱側に伝達しない
ような焼なまし処理をしておく。さらに、この下部導体
55は、真空インタラプタ26の接点部分の上下60mmの範囲
に亘って、その外周部をワンターンする磁界発生用コイ
ル60に接続するように構成し、開閉動作時のアークが良
好に消弧されるようにしてある。
Also, in the figure, a contact case is
The lower conductor 55, which is the main circuit conductor, is screwed and fixed via the distance 61, which is a reinforcing insulator. The upper and lower conductors 54 and 55 are subjected to an annealing process so that a reaction force due to an error is not transmitted to the pole when the board-side conductor (not shown) is connected. In addition, this lower conductor
55 is configured to be connected to the magnetic field generating coil 60 which makes a one-turn turn at the outer periphery thereof over a range of 60 mm above and below the contact portion of the vacuum interrupter 26, so that the arc at the time of the opening and closing operation is satisfactorily extinguished. It is.

また、この主回路導体を螺着するに当たり、第5図に
示すように、所要のボルト57として、頭部の丸いボルト
を使用することにより、絶縁効果を向上するようにす
る。また、下部の支持金具49の内側部分に、駆動リンク
板48、補助レバー62及びボルト等の部品が収容されるよ
うにして、耐電圧上重要な下部の支持金具49の外側面部
には、突起物が出ないようにして耐電圧上有利な構成と
する。
In screwing the main circuit conductor, a bolt having a round head is used as the required bolt 57 as shown in FIG. 5, so that the insulation effect is improved. Also, components such as the drive link plate 48, the auxiliary lever 62, and the bolts are accommodated in the inner portion of the lower support fitting 49, and the outer surface of the lower support fitting 49 important for withstand voltage has a protrusion. The structure is advantageous in terms of withstand voltage by preventing objects from coming out.

さらに、所要の支持金具53等の角部を丸くして、沿面
距離を取り、絶縁効果を向上させるべく、鋳造物を用い
る等して、全体的に丸みをおびた形状に形成する。
Further, the corners of the required support fittings 53 and the like are rounded to obtain a creepage distance, and in order to improve the insulation effect, a casting is used or the like to form a rounded shape as a whole.

上述したように、取付隔板3に、その両側面部に亘っ
て真空インタラプタ26、とその操作機構装置及び主回路
導体部分を設置したものを、第4図に示すように匣体1
の開口部2に合わせ、その取付隔板3の周囲を溶接によ
って固着し、この溶接部分で気密を保つようにする。
As described above, the vacuum interrupter 26, its operation mechanism device, and the main circuit conductor portion are installed on both sides of the mounting partition plate 3 as shown in FIG.
Is fixed to the periphery of the mounting partition plate 3 by welding, and the welded portion is kept airtight.

従って、絶縁ガスのための気密シール部分は、貫通軸
受31と閉塞軸受32部分のみとなり、器具全体のシール長
を極力短くして、気密性能を向上できるようにするもの
である。
Therefore, the hermetic seal portion for the insulating gas is only the through bearing 31 and the blockage bearing 32 portion, and the seal length of the entire instrument is shortened as much as possible, so that the hermetic performance can be improved.

次に、上述のように構成した本例のしゃ断器の作動
を、第3図によって説明する。
Next, the operation of the circuit breaker of this example configured as described above will be described with reference to FIG.

第3図に示す状態では、真空インタラプタ26は投入状
態で、かつ投入ばね10の著勢状態にある。
In the state shown in FIG. 3, the vacuum interrupter 26 is in a closed state, and the closing spring 10 is in a predominant state.

この投入状態から、しゃ断状態に移行するには、引外
しフック18の横突杆部18dを矢印G方向に突き上げる操
作を行う。
In order to shift from the inserted state to the cut-off state, an operation of pushing up the laterally protruding rod portion 18d of the trip hook 18 in the direction of arrow G is performed.

すると、蓄勢状態にあるしゃ断ばべ25と圧接ばね46と
の反力を押えていた引外しフック18は、図の矢印Hで示
す時計方向に回動して、引外しフックレバー22との係合
を解除する。
Then, the trip hook 18, which has held down the reaction force between the blocking spring 25 and the press-contact spring 46 in the accumulating state, rotates clockwise as indicated by the arrow H in the drawing, and the trip hook 18 moves with the trip hook lever 22. Release the engagement.

すると、回動フリーとなったしゃ断ばね操作軸21が、
しゃ断ばね25の矢印I方向への引張り附勢力によって、
リンク板27と一体となって矢印E方向に回動し、これに
伴ってリンク板27に連動するリンク支杆28を引き上げ、
さらにリンク平板30を矢印J方向に回動する。
Then, the pivoting free spring operating shaft 21 becomes
By the pulling urging force of the breaking spring 25 in the direction of arrow I,
It turns integrally with the link plate 27 in the direction of arrow E, and accordingly, the link support rod 28 interlocking with the link plate 27 is pulled up,
Further, the link plate 30 is rotated in the direction of arrow J.

これにより、リンク平板30と共に操作機軸29が矢印J
方向に回動する。すると、この操作機軸29に設置された
三相のための各圧接ばねレバー45、45、45が矢印J方向
に回動し、各々圧接ばね46、46、46を介して、各絶縁ロ
ッド47、47、47を矢印K方向に引く。この動作に連動し
て各駆動リンク板48はそれぞれ、その枢着軸48aを中心
に矢印L方向に回動し、このときの補助レバー62の対称
的回動動作と相俟って、各操作杆50を矢印M方向に引き
下げる操作を行い、真空インタラプタ26をしゃ断動作せ
しめるものである。
As a result, the operating machine shaft 29 together with the link plate 30 is pointed by the arrow J.
Rotate in the direction. Then, the respective press-contact spring levers 45, 45, 45 for the three phases installed on the operating device shaft 29 rotate in the direction of arrow J, and via the respective press-contact springs 46, 46, 46, the respective insulating rods 47, Pull 47, 47 in the direction of arrow K. In conjunction with this operation, each drive link plate 48 rotates in the direction of arrow L about its pivot shaft 48a, and in conjunction with the symmetrical rotation of the auxiliary lever 62 at this time, The operation of pulling down the rod 50 in the direction of the arrow M is performed to shut off the vacuum interrupter 26.

なお、このしゃ断状態では、しゃ断ばね25と圧接ばね
46とは、共に放勢状態となっている。
In this cut-off state, the cut-off spring 25 and the pressure contact spring
With 46, both have been released.

次に、上述のしゃ断状態から投入する場合について説
明すると、このしゃ断状態では、投入ばね10は蓄勢状態
にあり、その反力は、投入フック17が支持している状態
にある。このとき、投入フック17を、矢印N方向に押し
上げ、これを回動させると、投入フック17と、投入フッ
クレバー16との間のロックが解除され、投入ばね10の押
圧附勢力で、投入ばね操作軸8及び、これと一体となっ
た投入カム11を矢印C方向に約半回転回動する。このた
め、投入カム11によって、投入カム受けレバー23を蹴っ
て、矢印F方向に回動する。これにより、ばねレバー24
も矢印F方向に回動し、しゃ断ばね25を矢印Iと逆方向
に引き下げ、蓄勢する。さらに、リンク板27も矢印F方
向に回動し、リンク支杆28を押し下げ、リンク平板30を
矢印Jと逆方向に回動する。
Next, a description will be given of a case where the closing is performed from the above-described blocked state. In this blocked state, the closing spring 10 is in a state of accumulation and the reaction force is in a state where the closing hook 17 is supporting. At this time, when the closing hook 17 is pushed up in the direction of arrow N and rotated, the lock between the closing hook 17 and the closing hook lever 16 is released, and the closing spring is pressed by the pressing biasing force of the closing spring 10. The operation shaft 8 and the input cam 11 integrated with the operation shaft 8 are rotated about a half turn in the direction of arrow C. Therefore, the input cam 11 kicks the input cam receiving lever 23 and rotates in the direction of arrow F. This allows the spring lever 24
Also rotates in the direction of arrow F, pulls down the breaking spring 25 in the direction opposite to the direction of arrow I, and accumulates energy. Further, the link plate 27 also rotates in the direction of the arrow F, depresses the link support rod 28, and rotates the link plate 30 in the direction opposite to the arrow J.

従って、このリンク平板30の回動に一体的連動して操
作機軸29及び各圧接ばねレバー45が矢印Jと逆方向に回
動し、各圧接ばね46を介して、各絶縁ロッド47を矢印K
と逆方向に押す。
Accordingly, the operating device shaft 29 and each press-contact spring lever 45 rotate in the direction opposite to the arrow J integrally with the rotation of the link flat plate 30, and move the respective insulating rods 47 via the respective press-contact springs 46 to the arrow K.
Press in the opposite direction.

これにより一対の駆動リンク板48と補助レバー62が対
称的に回動して操作杆50を矢印Mと逆方向に押し上げ、
真空インタラプタ26を投入操作せしめる。なお、投入カ
ム11により、投入カムレバー23が最下位置に押し下げら
れたとき、引外しフック18が自動的に引き外しフックレ
バー22と係合して、投入状態を保持する。この投入動作
完了時には、しゃ断ばね25と圧接ばね46とは、蓄勢状態
となって、その反力を引外しフック18が係止し支持する
状態となっており、さらに、投入ばね10は放勢状態にあ
る。
As a result, the pair of drive link plates 48 and the auxiliary lever 62 rotate symmetrically to push up the operating rod 50 in the direction opposite to the arrow M,
The vacuum interrupter 26 is turned on. When the closing cam lever 23 is pushed down to the lowermost position by the closing cam 11, the tripping hook 18 automatically engages with the tripping hook lever 22 to maintain the closing state. When the closing operation is completed, the cut-off spring 25 and the press-contact spring 46 are in an accumulating state, the reaction force is tripped, the hook 18 is locked and supported, and the closing spring 10 is released. Is in a state of force.

よって、次の投入動作の準備の為に投入ばね蓄勢動作
を行う。
Therefore, the closing spring accumulating operation is performed in preparation for the next closing operation.

これは、ギヤードモータ13を駆動して、回転軸部14を
回動することにより、つめ15を往復連動させ、つめ車12
を矢印C方向に間欠送り動作し、節片9の最下点位置か
ら、その上死点位置を小し回った所定位置まで回動し、
この節片9の変位量の分だけ、投入ばね10を弾性変形し
て蓄勢する。この蓄勢状態では、投入フック17が、投入
フックレバー16に自動的に係止され第3図に示す状態と
なる。
This is achieved by driving the geared motor 13 and rotating the rotating shaft 14 so that the pawl 15 reciprocates and the pawl wheel 12
Is operated intermittently in the direction of arrow C, and is rotated from the lowest point position of the node piece 9 to a predetermined position slightly smaller than its top dead center position,
The closing spring 10 is elastically deformed and charged by the displacement of the node piece 9. In this energy storage state, the closing hook 17 is automatically locked to the closing hook lever 16 to be in the state shown in FIG.

なお、つめ15の間欠送り動作中、つめ車12の各歯での
最大送り位置から、つめ15が次の歯にかみ合うまでの逆
転防止は、軸受部の図示しないワンウェイクラッチによ
って行われる。
During the intermittent feed operation of the pawl 15, the reverse rotation from the maximum feed position at each tooth of the pawl wheel 12 until the pawl 15 engages with the next tooth is prevented by a one-way clutch (not shown) of the bearing portion.

また、このしゃ断器の投入状態での電流の流れは、第
1図に矢印で示す如くになる。
The flow of current when the circuit breaker is turned on is as shown by an arrow in FIG.

H.発明の効果 以上詳述したように、本発明のガス絶縁しゃ断器によ
れば、取付隔板の表面側と裏面側とに亘って、真空イン
タラプタの駆動機器と、主回路機器及び真空インタラプ
タ等の構成部品を配置し、 また、構成部品を装着した取付隔板を、匣体の開口部
に全周を溶接して固着し、気密を保つようにしたので、
気密を保つためのシール部分を、貫通軸受の回転シール
部分の信頼性の高いものにし、しかもシール流を極力短
くしたので、気密信頼性を飛躍的に向上できるという効
果がある。
H. Effects of the Invention As described above in detail, according to the gas insulated circuit breaker of the present invention, the driving device of the vacuum interrupter, the main circuit device, and the vacuum interrupter Since the components such as etc. are arranged, and the mounting partition plate with the components mounted is fixed by welding the entire circumference to the opening of the casing, so as to maintain airtightness,
Since the sealing portion for maintaining the airtightness is made highly reliable in the rotary sealing portion of the through bearing and the sealing flow is shortened as much as possible, there is an effect that the airtight reliability can be remarkably improved.

さらに、真空インタラプタの駆動操作機構として、一
般に多く用いられているトッグルリンク機構である引外
し自由機構を廃止し、操作軸に固着されたレバー等を直
接カム等に連動せしめるように構成したので、機構構成
を簡素化して小形化を図るとともに、動作上の長期信頼
性を向上できるという効果かある。
Furthermore, as the drive operation mechanism of the vacuum interrupter, the tripping free mechanism, which is a toggle link mechanism that is commonly used, is abolished, and the lever or the like fixed to the operation shaft is directly linked to the cam or the like. There is an effect that the mechanism configuration can be simplified and downsized, and long-term reliability in operation can be improved.

【図面の簡単な説明】[Brief description of the drawings]

第1図は本発明のガス絶縁しゃ断器の一実施例を示す縦
断面側面図、第2図はその拡大正面図、第3図はその機
構構成線図、第4図はその要部の概略斜視図、第5図は
そのシール構成部分を示す要部の拡大縦断面図である。 1……匣体、2……開口部、3……取付隔板、4……操
作軸収納箱部、8……投入ばね操作軸、10……投入ば
ね、11……投入カム、12……つめ車、15……つめ、17…
…投入フック、18……引外しフック、21……しゃ断ばね
操作軸、25……しゃ断ばね、26……真空インタラプタ、
27……リンク板、29……操作機軸、31……貫通軸受、32
……閉塞軸受、42……パッキン、46……圧接ばね、47…
…絶縁ロッド、49……支持金具、52……碍石、53……支
持金具、54……上部導体、55……下部導体、56……コン
タクトケース、62……補助レバー。
FIG. 1 is a longitudinal sectional side view showing one embodiment of the gas insulated circuit breaker of the present invention, FIG. 2 is an enlarged front view thereof, FIG. 3 is a diagram of the mechanism configuration thereof, and FIG. FIG. 5 is a perspective view, and FIG. 5 is an enlarged vertical cross-sectional view of a main part showing a sealing component. DESCRIPTION OF SYMBOLS 1 ... Box, 2 ... Opening, 3 ... Mounting plate, 4 ... Operating shaft storage box, 8 ... Closing spring operating shaft, 10 ... Closing spring, 11 ... Closing cam, 12 ... … Pawl car, 15 …… Pawl, 17…
… Injection hook, 18… Trip off hook, 21 …… Shutter spring operating shaft, 25 …… Shutter spring, 26 …… Vacuum interrupter,
27 …… Link plate, 29 …… Operation device shaft, 31 …… Through bearing, 32
…… Occlusion bearing, 42 …… Packing, 46 …… Press-fit spring, 47…
... insulating rod, 49 ... support bracket, 52 ... insulator, 53 ... support bracket, 54 ... upper conductor, 55 ... lower conductor, 56 ... contact case, 62 ... auxiliary lever.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】ガス絶縁キュービクル等の匣体(1)の開
口部(2)に周囲を溶接して気密を保つよう一体的に設
けられる取付隔板(3)に、箱状の操作軸収納箱部
(4)を設置し、 前記取付隔板(3)の外気側側面部に、投入ばね操作軸
(8)を回動自在に支受させて設置し、当該投入ばね操
作軸(8)を、附勢力で所定方向に半周回動せしめるよ
うに投入ばね(10)の一端部を装着し、 さらに当該投入ばね操作軸(8)に、一体的に回動する
よう投入カム(11)を設置するとともに、つめ車(12)
を設置して、当該つめ車(12)を、つめ(15)を往復駆
動して間欠送りさせるモータ(13)を設置し、 前記投入ばね操作軸(8)に、横に突設した支杆状の投
入フックレバー(16)を設け、当該投入フックレバー
(16)の自由端部を投入フック(17)で係脱可能に支持
し、 前記取付隔板(3)の外気側側面部に、しゃ断ばね操作
軸(21)を回動自在に支受させて設置し、当該しゃ断ば
ね操作軸(21)に、横に突設した支杆状の引外しフック
レバー(22)を設け、当該引外しフックレバー(22)の
自由端部を引外しフック(18)で係脱可能に支持し、 前記しゃ断ばね操作軸(21)の、前記投入カム(11)に
連動可能な対応位置に、横に突設した支杆状の投入カム
受けレバー(23)を設置し、 前記しゃ断ばね操作軸(21)を、附勢力で所定角回動せ
しめるようにしゃ断ばね(25)を設置し、さらに前記し
ゃ断ばね操作軸(21)に、連動用のリンク板(27)を設
置し、 前記取付隔板(3)の絶縁ガス充填側面部側に対し、前
記操作軸収納箱部(4)内に、その両横端板(4a),
(4b)にそれぞれ設置した、気密を保つ構造の貫通軸受
(31)と閉塞軸受(32)とによって回動自在に支受され
る操作機軸(29)を設置し、 当該操作機軸(29)の前記貫通軸受(31)からの外方突
出端部に、リンク平板(30)を設け、当該リンク平板
(30)を、前記リンク板(27)と接続連動するように
し、 前記操作機軸(29)の、前記操作軸収納箱部(4)内の
所定箇所に、横に突設する支杆状の圧接ばねレバー(4
5)を設置し、当該圧接ばねレバー(45)の自由端部
に、圧接ばね(46)及び絶縁ロッド(47)を介して、駆
動リンク板(48)を連動して所定角回動せしめるよう接
続し、 当該駆動リンク板(48)の回動動作によって、真空イン
タラプタ(26)の操作杆を連動動作せしめるようにした
ことを特徴とするガス絶縁しゃ断器。
A box-shaped operation shaft is housed in a mounting plate (3) integrally provided so as to maintain the airtightness by welding the periphery to an opening (2) of a casing (1) such as a gas insulating cubicle. A box part (4) is installed, and a closing spring operating shaft (8) is rotatably supported and installed on the outside air side surface of the mounting partition plate (3), and the closing spring operating shaft (8) is installed. One end of the closing spring (10) is mounted so that the closing spring can be rotated in a predetermined direction by a biasing force, and the closing cam (11) is further rotated on the closing spring operating shaft (8). We install, and nail (12)
And a motor (13) for intermittently feeding the pawl (12) by reciprocally driving the pawl (15) is provided, and a laterally protruding support rod is provided on the closing spring operating shaft (8). A hook-shaped input hook lever (16) is provided, and a free end of the input hook lever (16) is detachably supported by an input hook (17). The breaking spring operating shaft (21) is rotatably supported and installed, and the breaking spring operating shaft (21) is provided with a laterally protruding rod-shaped trip hook lever (22). The free end of the release hook lever (22) is detachably supported by the release hook (18), and the horizontal position of the breaking spring operating shaft (21) is set to a corresponding position that can be interlocked with the closing cam (11). A lever-shaped input cam receiving lever (23) protruding from the shaft is installed, and the breaking spring operating shaft (21) is rotated by a predetermined angle by an urging force. And a link plate (27) for interlocking is installed on the shaft (21), and the insulating partition (3) is located on the side of the insulating gas filling side. , Inside the operation shaft storage box portion (4), both lateral end plates (4a),
The operating machine shaft (29), which is rotatably supported by the through-bearing (31) and the closing bearing (32) of the airtight structure installed in (4b) respectively, is installed. A link plate (30) is provided at an end protruding outward from the through bearing (31), and the link plate (30) is connected to and linked with the link plate (27). At a predetermined position in the operation shaft storage box portion (4), a rod-shaped pressure contact spring lever (4
5) is installed, and the drive link plate (48) is rotated by a predetermined angle at the free end of the press-contact spring lever (45) via the press-contact spring (46) and the insulating rod (47). A gas insulated circuit breaker, wherein the operating link of the vacuum interrupter (26) is operated in conjunction with the rotating operation of the drive link plate (48).
JP292088A 1988-01-09 1988-01-09 Gas insulated circuit breaker Expired - Lifetime JP2606247B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP292088A JP2606247B2 (en) 1988-01-09 1988-01-09 Gas insulated circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP292088A JP2606247B2 (en) 1988-01-09 1988-01-09 Gas insulated circuit breaker

Publications (2)

Publication Number Publication Date
JPH01183023A JPH01183023A (en) 1989-07-20
JP2606247B2 true JP2606247B2 (en) 1997-04-30

Family

ID=11542786

Family Applications (1)

Application Number Title Priority Date Filing Date
JP292088A Expired - Lifetime JP2606247B2 (en) 1988-01-09 1988-01-09 Gas insulated circuit breaker

Country Status (1)

Country Link
JP (1) JP2606247B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210140761A (en) * 2019-03-29 2021-11-23 지멘스 에너지 글로벌 게엠베하 운트 코. 카게 Current Breaker System

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011085995A1 (en) * 2011-11-09 2013-05-16 Siemens Aktiengesellschaft Drive module for a multi-pole circuit breaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210140761A (en) * 2019-03-29 2021-11-23 지멘스 에너지 글로벌 게엠베하 운트 코. 카게 Current Breaker System
KR102654112B1 (en) 2019-03-29 2024-04-04 지멘스 에너지 글로벌 게엠베하 운트 코. 카게 current breaker system

Also Published As

Publication number Publication date
JPH01183023A (en) 1989-07-20

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