JP2005216573A - Disconnector - Google Patents

Disconnector Download PDF

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Publication number
JP2005216573A
JP2005216573A JP2004019269A JP2004019269A JP2005216573A JP 2005216573 A JP2005216573 A JP 2005216573A JP 2004019269 A JP2004019269 A JP 2004019269A JP 2004019269 A JP2004019269 A JP 2004019269A JP 2005216573 A JP2005216573 A JP 2005216573A
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contact
movable blade
disconnector
shaft
operation part
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JP2004019269A
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Japanese (ja)
Inventor
Kenji Tsuji
謙次 辻
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Japan AE Power Systems Corp
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Japan AE Power Systems Corp
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Priority to JP2004019269A priority Critical patent/JP2005216573A/en
Publication of JP2005216573A publication Critical patent/JP2005216573A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a small disconnector capable of avoiding its size from needlessly increasing for securing an insulation distance in a limited space in a cubicle. <P>SOLUTION: The circumferences of movable blades 29 rotatably connected to load-side terminals 27 through a connection shaft 36 are surrounded by an operation part 38 formed of an insulation material; an operation shaft 38a of the operation part 38 rotatably driven by a driving source is positioned on the same axial line as that of the connection shaft 36; the operation part 38 is rotated through the operation shaft 38a by the driving source; and the movable blades 29 are rotated by pressing them by the operation part 38. The operation part 38 is provided with a correlation part 38b in correlation with the movable blades 29. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

この発明は、キュービクル等に使用する断路器、特にその操作機構に関するものである。   The present invention relates to a disconnector used for a cubicle or the like, and more particularly to an operation mechanism thereof.

図2及び図3は特許文献1に示された従来の開閉装置の縦断正面図及び縦断側面図を示し、1は真空インタラプタを用いた遮断器、2,3は接地機構付きの負荷開閉器、4は接地機構付きの断路器、5は容器である。遮断器1は容器5の底部上に絶縁フレーム6を介して配置された支持導体7上に固定電極側が下になるように取り付け、その上に絶縁板8、リングコンタクト9及び絶縁ロッド10を直線的に配置し、その上端に引き外しばねを含む操作装置11を連結している。リングコンタクト9には遮断器1の可動リードが摺接し、電気的接続関係を保持している。このリングコンタクト9の周囲には導電性の支持板12を取り付け、その上面に3位置形の接地機構付き断路器4の固定コンタクト4Aを配設している。支持導体7の両側には、接地機構付きの負荷開閉器2,3の固定コンタクト2A,3Aを取り付けている。負荷開閉器2,3の可動ブレード2B,3Bは、絶縁フレーム6の両側の容器5の底部に配置した受電側のブッシング13,14の上部に回動自在に支持している。負荷開閉器2,3の接地用固定コンタクト2C,3Cは容器5側に設置している。   2 and 3 show a longitudinal front view and a longitudinal side view of a conventional switchgear disclosed in Patent Document 1, wherein 1 is a circuit breaker using a vacuum interrupter, 2 and 3 are load switches with a grounding mechanism, 4 is a disconnector with a grounding mechanism, and 5 is a container. The circuit breaker 1 is mounted on the support conductor 7 disposed on the bottom of the container 5 via the insulating frame 6 so that the fixed electrode side is on the lower side, and the insulating plate 8, the ring contact 9 and the insulating rod 10 are linearly mounted thereon. The operating device 11 including a tripping spring is connected to the upper end thereof. The ring lead 9 is in sliding contact with the movable lead of the circuit breaker 1 to maintain the electrical connection relationship. A conductive support plate 12 is attached around the ring contact 9, and a fixed contact 4 </ b> A of a three-position type disconnector 4 with a grounding mechanism is disposed on the upper surface thereof. On both sides of the support conductor 7, fixed contacts 2A and 3A of load switches 2 and 3 with a grounding mechanism are attached. The movable blades 2 </ b> B and 3 </ b> B of the load switches 2 and 3 are rotatably supported on upper portions of the power receiving side bushings 13 and 14 disposed at the bottom of the container 5 on both sides of the insulating frame 6. The grounding fixed contacts 2C and 3C of the load switches 2 and 3 are installed on the container 5 side.

又、容器5の奥側の底部に負荷側のブッシング15を配置し、その上部と断路器4の可動ブレード4Bの一端が回動自在に支持された端子24とを接続導体16により接続している。断路器4の接地用固定コンタクト4Cは、容器5側に設置されている。負荷開閉器2,3の可動ブレード2B,3Bには操作装置17,18を、断路器4の可動ブレード4Bには操作装置19をそれぞれ連結している。容器5の下方にはケーブル室20を付設し、内部でブッシング13〜15と電力ケーブルとの接続を行うようにしている。ケーブル室20は仕切板21,22によって三つに区画し、容器5の前面には操作・制御箱23を配置している。   Further, a load-side bushing 15 is disposed at the bottom of the container 5, and an upper portion thereof is connected to a terminal 24 on which one end of the movable blade 4B of the disconnector 4 is rotatably supported by a connection conductor 16. Yes. The grounding fixed contact 4C of the disconnector 4 is installed on the container 5 side. Operating devices 17 and 18 are connected to the movable blades 2B and 3B of the load switches 2 and 3, and an operating device 19 is connected to the movable blade 4B of the disconnect switch 4 respectively. A cable chamber 20 is attached below the container 5 so that the bushings 13 to 15 and the power cable are connected inside. The cable chamber 20 is divided into three parts by partition plates 21 and 22, and an operation / control box 23 is disposed on the front surface of the container 5.

図4及び図5は他の従来の断路器の要部正面図及び要部斜視図を示し、25は接地金属からなる操作軸、26は操作軸25に取り付けられた接地コンタクト、27は負荷側ブッシング28に取り付けられた負荷側端子であり、負荷側ブッシング28は絶縁ガス封入タンク35に取り付けられている。29は一端が負荷側端子27に連結軸36を介して回動自在に連結された通電部である可動ブレード、30は両端が可動ブレード29及び接地コンタクト26に回動自在に連結された絶縁材からなるリンクである。又、31は電源側の母線であり、母線31には消イオンシート32を有するアーク室33が取り付けられるとともに、固定コンタクト34が取り付けられる。そして、駆動源により操作軸25を回転させることにより、接地コンタクト26及びリンク30を介して可動ブレード29が回動し、固定コンタクト34と接触してオン位置となり、また接地コンタクト26と接触して接地位置となり、両者と接触しないでオフ位置となる。
特開平8−168125号公報
4 and 5 show a front view and a perspective view of a main part of another conventional disconnector, in which 25 is an operation shaft made of a ground metal, 26 is a ground contact attached to the operation shaft 25, and 27 is a load side. A load-side terminal attached to the bushing 28, and the load-side bushing 28 is attached to the insulating gas sealing tank 35. Reference numeral 29 denotes a movable blade which is a current-carrying portion whose one end is rotatably connected to the load-side terminal 27 via a connecting shaft 36, and 30 is an insulating material whose both ends are rotatably connected to the movable blade 29 and the ground contact 26. A link consisting of Reference numeral 31 denotes a power source bus, to which an arc chamber 33 having a deionization sheet 32 is attached and a fixed contact 34 is attached. Then, by rotating the operating shaft 25 by the drive source, the movable blade 29 is rotated via the ground contact 26 and the link 30, is brought into contact with the fixed contact 34, and is brought into an on position, and is brought into contact with the ground contact 26. It becomes a grounding position, and it will be in an off position without contacting both.
JP-A-8-168125

上記した従来の断路器においては、操作軸25及び接地コンタクト26は接地電位となるため、可動ブレード29との間に電圧に応じて絶縁距離Lをとる必要があり、キュービクル内の限られたスペースにおいては、絶縁距離Lをとるために断路器の構造が必要以上に大きくなり、効率の悪い配置となった。   In the conventional disconnector described above, since the operating shaft 25 and the ground contact 26 are at ground potential, it is necessary to provide an insulation distance L between the movable blade 29 and the movable blade 29, and a limited space in the cubicle. In order to take the insulation distance L, the structure of the disconnector became larger than necessary, resulting in an inefficient arrangement.

この発明は上記のような課題を解決するために成されたものであり、小形な断路器を得ることを目的とする。   The present invention has been made to solve the above-described problems, and an object thereof is to obtain a small disconnector.

この発明の請求項1に係る断路器は、電源側に支持された固定コンタクトと、接地側に支持された接地コンタクトと、負荷側端子に連結軸を介して回動自在に支持された可動ブレードと、絶縁材からなり、可動ブレードの周囲を囲むとともに、駆動源により回転駆動される操作軸を有し、該操作軸が連結軸と同一軸線上に位置する操作部とを備え、操作軸を回転して操作部の押圧により可動ブレードを回動させ、各コンタクトと接触させ、あるいは接触させないようにしたものである。   According to a first aspect of the present invention, there is provided a disconnector comprising: a fixed contact supported on the power source side; a ground contact supported on the ground side; and a movable blade supported rotatably on the load side terminal via a connecting shaft. And an operating shaft that is made of an insulating material and surrounds the periphery of the movable blade and is rotationally driven by a drive source, and the operating shaft is located on the same axis as the connecting shaft. The movable blade is rotated by the rotation of the operation unit and is brought into contact with or not in contact with each contact.

請求項2に係る断路器は、操作部が、各相可動ブレードの相間において相間部分を設けたものである。   In the disconnector according to the second aspect, the operation unit is provided with an interphase portion between the phases of each phase movable blade.

以上のようにこの発明の請求項1によれば、操作部を絶縁材により構成するとともに、操作部の操作軸を可動ブレードの負荷側端子との連結軸と同一軸線上に位置させ、この操作部の押圧により可動ブレードを回動するようにしており、可動ブレードと操作部との絶縁距離をとる必要がなく、また操作部は絶縁バリアとして作用するので、コンタクト等の充電部との絶縁距離を小さくすることができ、断路器を小形化することができる。   As described above, according to the first aspect of the present invention, the operation portion is made of an insulating material, and the operation shaft of the operation portion is positioned on the same axis as the connection shaft with the load side terminal of the movable blade. Since the movable blade is rotated by the pressing of the part, it is not necessary to take an insulation distance between the movable blade and the operation part, and the operation part acts as an insulation barrier, so the insulation distance from the charging part such as a contact Can be reduced, and the disconnector can be miniaturized.

請求項2によれば、操作部を、各相可動ブレードの相間に相関部分を設けており、この操作部の相間部分も絶縁バリアとなり、相間距離を小さくすることができ、やはり断路器を小形化することができる。   According to claim 2, the operation part is provided with a correlation part between the phases of each phase movable blade, the interphase part of this operation part also becomes an insulation barrier, the interphase distance can be reduced, and the disconnector is also small in size. Can be

以下、この発明を実施するための最良の形態を図面とともに説明する。図1はこの発明による断路器の要部斜視図を示し、34は電源側に支持された固定コンタクト、37は接地側に支持された接地コンタクト、29は一端が負荷側端子27に連結軸36を介して回動自在に支持された可動ブレードである。又、38は箱状の絶縁材からなる操作部であり、各相の可動ブレード29の周囲を囲むとともに、相間にも相間部分38bが設けられる。操作部38は駆動源により回転駆動される操作軸38aを有し、操作軸38aは連結軸36と同一軸線上に位置する。   The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a main part of a disconnector according to the present invention, in which 34 is a fixed contact supported on the power source side, 37 is a ground contact supported on the ground side, 29 is one end connected to the load side terminal 27 and a connecting shaft 36 It is a movable blade supported so as to be able to rotate through the. Reference numeral 38 denotes an operation portion made of a box-like insulating material, which surrounds the periphery of the movable blade 29 of each phase and is provided with an interphase portion 38b between the phases. The operation unit 38 includes an operation shaft 38 a that is rotationally driven by a drive source, and the operation shaft 38 a is located on the same axis as the connection shaft 36.

上記構成において、駆動源により操作部38の操作軸38aを回転駆動すると、操作部38が回動し、操作部38の押圧により可動ブレード29が回動する。これによって、可動ブレード29は固定コンタクト34と接触するオン位置、あるいは接地コンタクト37と接触する接地位置、あるいは両者と接触しないオフ位置となる。   In the above configuration, when the operation shaft 38 a of the operation unit 38 is rotationally driven by the drive source, the operation unit 38 is rotated, and the movable blade 29 is rotated by the pressing of the operation unit 38. As a result, the movable blade 29 is in an on position where it comes into contact with the fixed contact 34, a ground position where it contacts the ground contact 37, or an off position where it does not contact both.

上記実施最良形態においては、可動ブレード29の負荷側端子27との連結軸36と同一軸線上に位置する操作軸38aを有する操作部38の押圧により可動ブレード29を回動操作しており、操作部38を絶縁材により形成したので、操作部38と可動ブレード29との絶縁距離をとる必要がなく、また操作部38が絶縁バリアとなるので、周囲のコンタクト34,37等の充電部との絶縁距離を小さくすることができ、断路器を小形化することができる。又、操作部38には各相の可動ブレード29間において相間部分38bを設けたので、この相間部分38bも絶縁バリアとなり、相間距離を小さくすることができ、断路器を小形化することができるとともに、この相間部分38bを設けたことによって、操作部38の強度を高めることができる。   In the above-described best embodiment, the movable blade 29 is rotated by the pressing of the operation portion 38 having the operation shaft 38a located on the same axis as the connecting shaft 36 with the load side terminal 27 of the movable blade 29. Since the portion 38 is formed of an insulating material, there is no need to provide an insulation distance between the operation portion 38 and the movable blade 29, and the operation portion 38 serves as an insulation barrier, so that the charging portion such as the surrounding contacts 34 and 37 can be separated from the charging portion. An insulation distance can be made small and a disconnector can be reduced in size. Further, since the interphase portion 38b is provided between the movable blades 29 of each phase in the operation portion 38, this interphase portion 38b also becomes an insulation barrier, the interphase distance can be reduced, and the disconnector can be miniaturized. In addition, the strength of the operation unit 38 can be increased by providing the interphase portion 38b.

この発明による断路器の要部斜視図である。It is a principal part perspective view of the disconnector by this invention. 特許文献1による従来の開閉器の縦断正面図である。It is a vertical front view of the conventional switch by patent document 1. 特許文献1による従来の開閉器の縦断側面図である。It is a vertical side view of the conventional switch by patent document 1. 従来の断路器の要部正面図である。It is a principal part front view of the conventional disconnector. 従来の断路器の要部斜視図である。It is a principal part perspective view of the conventional disconnector.

符号の説明Explanation of symbols

27…負荷側端子
29…可動ブレード
31…電源側端子
34…固定コンタクト
36…連結軸
37…接地コンタクト
38…操作部
38a…操作軸
38b…相間部分
27 ... Load side terminal 29 ... Movable blade 31 ... Power source side terminal 34 ... Fixed contact 36 ... Connecting shaft 37 ... Grounding contact 38 ... Operation part 38a ... Operation shaft 38b ... Interphase part

Claims (2)

電源側に支持された固定コンタクトと、接地側に支持された接地コンタクトと、負荷側端子に連結軸を介して回動自在に支持された可動ブレードと、絶縁材からなり、可動ブレードの周囲を囲むとともに、駆動源により回転駆動される操作軸を有し、該操作軸が連結軸と同一軸線上に位置する操作部とを備え、操作軸を回転して操作部の押圧により可動ブレードを回動させ、各コンタクトと接触させ、あるいは接触させないようにしたことを特徴とする断路器。   It consists of a fixed contact supported on the power supply side, a ground contact supported on the ground side, a movable blade rotatably supported on the load side terminal via a connecting shaft, and an insulating material. And an operating unit that is rotated by a drive source, the operating shaft being located on the same axis as the connecting shaft, and rotating the operating shaft to rotate the movable blade by pressing the operating unit. A disconnector characterized by being moved and brought into contact with each contact or not brought into contact. 操作部は、各相可動ブレードの相間において相間部分を設けたことを特徴とする請求項1記載の断路器。   The disconnector according to claim 1, wherein the operation unit is provided with an interphase portion between the phases of each phase movable blade.
JP2004019269A 2004-01-28 2004-01-28 Disconnector Pending JP2005216573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004019269A JP2005216573A (en) 2004-01-28 2004-01-28 Disconnector

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Application Number Priority Date Filing Date Title
JP2004019269A JP2005216573A (en) 2004-01-28 2004-01-28 Disconnector

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Publication Number Publication Date
JP2005216573A true JP2005216573A (en) 2005-08-11

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007234377A (en) * 2006-02-28 2007-09-13 Energy Support Corp Aerial multicircuit switch
CN105957782A (en) * 2016-06-12 2016-09-21 河北梅特电气设备有限公司 Safety circuit breaker for AC low-voltage power distribution cabinet
CN111029180A (en) * 2019-11-27 2020-04-17 施耐德万高(天津)电气设备有限公司 Contact structure of isolating switch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007234377A (en) * 2006-02-28 2007-09-13 Energy Support Corp Aerial multicircuit switch
JP4540117B2 (en) * 2006-02-28 2010-09-08 エナジーサポート株式会社 Air multi-circuit switch
CN105957782A (en) * 2016-06-12 2016-09-21 河北梅特电气设备有限公司 Safety circuit breaker for AC low-voltage power distribution cabinet
CN105957782B (en) * 2016-06-12 2019-04-09 河北梅特电气设备股份有限公司 A kind of safety cut-out for AC low voltage power switch box
CN111029180A (en) * 2019-11-27 2020-04-17 施耐德万高(天津)电气设备有限公司 Contact structure of isolating switch

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