JP4731427B2

JP4731427B2 - Power switchgear

Info

Publication number: JP4731427B2
Application number: JP2006228689A
Authority: JP
Inventors: 健小松; 大二松田; 智仁森
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2006-08-25
Filing date: 2006-08-25
Publication date: 2011-07-27
Anticipated expiration: 2026-08-25
Also published as: JP2008053074A

Description

この発明は、電力用開閉装置、特に、発電・変電等の電力系統で使用される主回路開閉装置などの開閉装置に関するものである。 The present invention relates to a power switchgear, and more particularly to a switchgear such as a main circuit switchgear used in a power system such as power generation / transforming.

従来技術においては、その一例として一体形の主回路開閉装置が提案されている（例えば、特許文献１参照）。
この従来技術では、特許文献１の図１に示されるように、主回路開閉装置には、電流を遮断するための遮断部１が設けられている。遮断部１は、エポキシ樹脂などで製作された絶縁筒２、絶縁筒２の一端に固定された遮断部固定側導体３、絶縁筒２の他端に固定された遮断部可動側導体４、遮断部固定側導体３に固定された遮断部固定接触子５、遮断部固定接触子と対向する遮断部可動接触子６を有している。遮断部可動接触子６は遮断部固定接触子５と接離可能に遮断部可動側導体４に取り付けられている。 In the prior art, as an example, an integrated main circuit switching device has been proposed (see, for example, Patent Document 1).
In this prior art, as shown in FIG. 1 of Patent Document 1, the main circuit switching device is provided with a blocking portion 1 for blocking current. The blocking part 1 includes an insulating cylinder 2 made of epoxy resin or the like, a blocking part fixed side conductor 3 fixed to one end of the insulating cylinder 2, a blocking part movable side conductor 4 fixed to the other end of the insulating cylinder 2, It has the interruption | blocking part fixed contact 5 fixed to the part fixed side conductor 3, and the interruption | blocking part movable contact 6 which opposes the interruption | blocking part fixed contact. The blocking portion movable contact 6 is attached to the blocking portion movable side conductor 4 so as to be able to contact and separate from the blocking portion fixed contact 5.

また、電圧を切るための断路部８が設けられている。断路部可動側導体１１は遮断部可動側導体４と電気的および機械的に一体構成され、遮断部可動側導体４との間には隔壁１０が設けられ、遮断部１側には六フッ化硫黄などの絶縁性ガスが封入されている。 Moreover, the disconnection part 8 for turning off a voltage is provided. The disconnection part movable side conductor 11 is electrically and mechanically integrated with the cutoff part movable side conductor 4, a partition wall 10 is provided between the cutoff part movable side conductor 4, and hexagonal fluoride is provided on the cutoff part 1 side. Insulating gas such as sulfur is enclosed.

断路部可動接触子を構成する可動導体１２は移動可能なようにフィンガーコンタクトからなる断路部可動側導体１１に取り付けられている。また、断路部可動側導体１１と離隔して設置されたフィンガーコンタクトからなる断路部固定側導体９が断路部固定接触子として設けられている。これら断路部固定側導体９、断路部可動側導体１１および可動導体１２で断路部８を構成している。断路部固定接触子としてのフィンガーコンタクトからなる断路部固定側導体９および断路部可動接触子としての可動導体１２の外径をそれぞれφＤ１，φＤ２とする。 The movable conductor 12 constituting the disconnection section movable contact is attached to the disconnection section movable side conductor 11 made of finger contacts so as to be movable. Moreover, the disconnection part fixed side conductor 9 which consists of the finger contact installed apart from the disconnection part movable side conductor 11 is provided as a disconnection part fixed contact. The disconnecting portion fixed side conductor 9, the disconnecting portion movable side conductor 11 and the movable conductor 12 constitute a disconnecting portion 8. The outer diameters of the disconnecting portion fixed-side conductor 9 composed of finger contacts as the disconnecting portion fixed contact and the movable conductor 12 as the disconnecting portion movable contact are denoted by φD1 and φD2, respectively.

また、従来技術においては、大電流通電用の断路部固定接触子および断路部可動接触子が提案されている（例えば、特許文献２および特許文献３参照）。
この従来技術では、特許文献３の図１に示されるように、可動側固定フィンガーコンタクト１が設けられており、図において水平方向の中心軸を有する円筒状で、右端から破線Ａまでの割り込みが円周方向に多数配設されたフィンガー形状になっていて、フィンガーの先端部は円筒状に膨らんだ接触部を形成している。そして、断路部固定接触子を構成する固定コンタクト２および断路部可動接触子を構成する可動フィンガーコンタクト３が設けられている。可動フィンガーコンタクト３は可動側固定フィンガーコンタクト１と同様の形状となっており、破線Ｂまでの割り込みによりフィンガー形状となっており、フィンガーの先端部は円筒状に膨らんだ接触部を形成している。上記可動フィンガーコンタクト３が図中左方向へ移動したときには固定側固定コンタクト２と離れるようになっている。 Further, in the prior art, a disconnecting portion fixed contact and a disconnecting portion movable contact for energizing a large current have been proposed (see, for example, Patent Document 2 and Patent Document 3).
In this prior art, as shown in FIG. 1 of Patent Document 3, a movable side fixed finger contact 1 is provided, and in the figure, it has a cylindrical shape having a horizontal central axis and interrupts from the right end to the broken line A. A large number of fingers are arranged in the circumferential direction, and the tips of the fingers form contact portions that swell in a cylindrical shape. And the fixed contact 2 which comprises a disconnection part fixed contact, and the movable finger contact 3 which comprises a disconnection part movable contact are provided. The movable finger contact 3 has the same shape as the movable-side fixed finger contact 1 and has a finger shape due to interruption up to the broken line B, and the tip of the finger forms a cylindrically expanded contact portion. . When the movable finger contact 3 moves leftward in the figure, it is separated from the fixed fixed contact 2.

導体４Ａ，４Ｂには、それぞれ固定フィンガーコンタクト１、固定コンタクト２が取り付けられており、これらを支持すると共に電気的に接続されている。操作ロッド７が設けられており、操作ロッド７の一端には可動フィンガーコンタクト３を駆動するためのフランジ５が固定され、操作ロッド７の他端は図示しない操作部の駆動装置につながっており、上記可動フィンガーコンタクト３を図において水平方向に駆動できるようになっている。 A fixed finger contact 1 and a fixed contact 2 are respectively attached to the conductors 4A and 4B, and these are supported and electrically connected. An operating rod 7 is provided, a flange 5 for driving the movable finger contact 3 is fixed to one end of the operating rod 7, and the other end of the operating rod 7 is connected to a driving device of an operating unit (not shown). The movable finger contact 3 can be driven in the horizontal direction in the figure.

特許第３２４３７５０号公報Japanese Patent No. 3243750 特開２０００−１１８１７号公報JP 2000-11817 A 実公平８−４６５７号公報No. 8-4657

従来技術における電力用開閉装置は以上のように構成されているので、特に大容量の通電性能が必要な場合には、発熱量を低減することや効率よく冷却できる構造・材質を採用することなどが重要となる。
導電性および伝熱性に優れた銅系素材が用いられて重量が大きくなる大容量通電に適用される電力用開閉装置における筒状固定接触子と対向する筒状可動接触子は、従来技術では非常に径の大きな単一の接触子として形成されている。
通電容量確保のため接触部自体の構成が大きくなり、その接触部を支持する支持部分の構成も大きくなって、重量が極めて大きくなり、組立性や製造性に問題があった。さらに、使用材料量が増えることによって部品価格が高価となる傾向があった。 Since the power switchgear in the prior art is configured as described above, especially when a large-capacity energization performance is required, it is possible to reduce the amount of heat generation, adopt a structure and material that can be cooled efficiently, etc. Is important.
The cylindrical movable contact that faces the cylindrical fixed contact in the power switchgear that is applied to large-capacity energization that uses a copper-based material with excellent electrical conductivity and heat transfer is heavy. It is formed as a single contact having a large diameter.
In order to secure the current carrying capacity, the configuration of the contact portion itself is increased, the configuration of the support portion that supports the contact portion is also increased, the weight is extremely increased, and there are problems in assemblability and manufacturability. Furthermore, there has been a tendency for the part price to increase as the amount of material used increases.

この発明は、上記のような問題点を解消するためになされたものであり、固定接触子および可動接触子を構成する複数の筒状固定接触部片および筒状可動接触部片のそれぞれを小径化して、小形化による製造組立性の改善と機器コストの低減を可能とする電力用開閉装置を得ようとするものである。 The present invention has been made to solve the above-mentioned problems, and each of the plurality of cylindrical fixed contact pieces and the cylindrical movable contact piece constituting the fixed contact and the movable contact has a small diameter. Therefore, an electric power switchgear that can improve manufacturing and assembling by reducing the size and reduce the equipment cost is obtained.

この発明に係る電力用開閉装置では、筒状固定接触部片で構成される固定接触子、前記筒状固定接触部片に接離する筒状可動接触部片で構成される可動接触子を備え、前記固定接触子と前記可動接触子とが通電電流を分流される複数の筒状固定接触部片と複数の筒状可動接触部片とで構成されるものである。 The power switchgear according to the present invention includes a fixed contact configured by a cylindrical fixed contact piece, and a movable contact configured by a cylindrical movable contact piece contacting and separating from the cylindrical fixed contact piece. The fixed contact and the movable contact are composed of a plurality of cylindrical fixed contact pieces and a plurality of cylindrical movable contact pieces to which an energization current is shunted.

この発明によれば、固定接触子および可動接触子を構成する複数の筒状固定接触部片および筒状可動接触部片のそれぞれを小径化して、小形化による製造組立性の改善と機器コストの低減を可能とする電力用開閉装置を得ることができる。 According to the present invention, each of the plurality of cylindrical fixed contact pieces and the cylindrical movable contact piece constituting the fixed contact and the movable contact is reduced in diameter, thereby improving the manufacturing and assembling performance and reducing the equipment cost. A power switchgear that can be reduced can be obtained.

実施の形態１．
この発明による実施の形態１を図１および図２について説明する。図１は実施の形態１における主回路開閉装置の構成を示す縦断面図である。図２は実施の形態１における断路部の構成を示す縦断面図である。図３は実施の形態１における断路部の構成を示す正面図である。図４は実施の形態１における断路部可動接触子と断路部固定接触子の構成を示す拡大断面図である。 Embodiment 1 FIG.
A first embodiment of the present invention will be described with reference to FIGS. 1 is a longitudinal sectional view showing a configuration of a main circuit switchgear according to Embodiment 1. FIG. FIG. 2 is a longitudinal sectional view showing the configuration of the disconnecting portion in the first embodiment. FIG. 3 is a front view showing the configuration of the disconnecting portion in the first embodiment. FIG. 4 is an enlarged cross-sectional view showing the configuration of the disconnecting portion movable contact and the disconnecting portion fixed contact in the first embodiment.

この発明による実施の形態１における主回路開閉装置の構成を示す図１において、主回路開閉装置には、電流を遮断するための遮断部１が設けられている。遮断部１はエポキシ樹脂などで製作された絶縁筒２、絶縁筒２の一端に固定された遮断部固定側導体３、絶縁筒２の他端に固定された遮断部可動側導体４、遮断部固定側導体３に固定された遮断部固定接触子５、遮断部固定接触子と対向する遮断部可動接触子６を有している。遮断部可動接触子６は遮断部固定接触子５と接離可能に遮断部可動側導体４に取り付けられている。 In FIG. 1 showing the configuration of the main circuit switchgear according to Embodiment 1 of the present invention, the main circuit switchgear is provided with a blocking portion 1 for blocking current. The blocking portion 1 includes an insulating tube 2 made of epoxy resin, a blocking portion fixed side conductor 3 fixed to one end of the insulating tube 2, a blocking portion movable side conductor 4 fixed to the other end of the insulating tube 2, and a blocking portion. It has the interruption | blocking part fixed contact 5 fixed to the stationary-side conductor 3, and the interruption | blocking part movable contact 6 facing the interruption | blocking part fixed contact. The blocking portion movable contact 6 is attached to the blocking portion movable side conductor 4 so as to be able to contact and separate from the blocking portion fixed contact 5.

また、電圧を切るための断路部１０が設けられている。断路部１０は、断路部可動側導体１１、断路部可動接触子を構成する断路部円筒状可動導体１３、断路部固定接触子を構成する断路部固定側円筒状フィンガーコンタクト１４、可動側フィンガーコンタクト１５および断路部固定側導体２０を有している。断路部可動側導体１１は遮断部可動側導体４と電気的および機械的に一体構成されている。断路部１０と遮断部可動側導体４との間には隔壁４ａが設けられ、遮断部１側には六フッ化硫黄などの絶縁性ガスが封入されている。ここで、断路部円筒状可動導体１３、断路部固定側円筒状フィンガーコンタクト１４および可動側フィンガーコンタクト１５には、導電性および伝熱性に優れた銅系素材が用いられている。 Moreover, the disconnection part 10 for cutting a voltage is provided. The disconnection part 10 includes a disconnection part movable side conductor 11, a disconnection part cylindrical movable conductor 13 constituting a disconnection part movable contact, a disconnection part fixed side cylindrical finger contact 14 constituting a disconnection part fixed contact, and a movable side finger contact. 15 and a disconnecting portion fixing side conductor 20. The disconnection part movable side conductor 11 is electrically and mechanically integrated with the cutoff part movable side conductor 4. A partition wall 4a is provided between the disconnecting portion 10 and the blocking portion movable side conductor 4, and an insulating gas such as sulfur hexafluoride is sealed on the blocking portion 1 side. Here, for the disconnecting portion cylindrical movable conductor 13, the disconnecting portion fixed side cylindrical finger contact 14 and the movable side finger contact 15, a copper-based material having excellent conductivity and heat conductivity is used.

断路部円筒状可動導体１３は移動可能なように断路部可動側導体１１に取り付けられている。断路部可動側導体１１と離隔して設置された断路部固定側円筒状フィンガーコンタクト１４は断路部固定側導体２０に取り付けられている。また、断路部可動側円筒状フィンガーコンタクト１５が断路部可動側導体１１に設けられている。 The disconnecting portion cylindrical movable conductor 13 is attached to the disconnecting portion movable side conductor 11 so as to be movable. The disconnecting portion fixed side cylindrical finger contact 14 installed separately from the disconnecting portion movable side conductor 11 is attached to the disconnecting portion fixed side conductor 20. Further, the disconnecting portion movable side cylindrical finger contact 15 is provided on the disconnecting portion movable side conductor 11.

ここで、遮断部１の遮断部可動接触子６は遮断部操作装置２１によって絶縁操作ロッド２２を介して開閉操作される。断路部１０の断路部円筒状可動導体１３は断路部操作装置２３によって絶縁操作ロッド２４を介して開閉操作される。遮断部可動接触子６を有する遮断部１と断路部円筒状可動導体１３を有する断路部１０とは電気的に直列接続されており、主回路開閉装置の開路動作時には、遮断部操作装置２１による開放操作によって遮断部１の遮断部可動接触子６が遮断部固定接触子５から開離し遮断部１による電流遮断動作が行われた後、断路部操作装置２３による開放操作によって断路部１０の断路部円筒状可動導体１３が断路部固定側円筒状フィンガーコンタクト１４から開離し断路部１０による断路動作が行われる。 Here, the movable section movable contact 6 of the blocking section 1 is opened and closed by the blocking section operating device 21 via the insulating operation rod 22. The disconnecting portion cylindrical movable conductor 13 of the disconnecting portion 10 is opened and closed by the disconnecting portion operating device 23 via the insulating operation rod 24. The interrupting part 1 having the interrupting part movable contact 6 and the disconnecting part 10 having the disconnecting part cylindrical movable conductor 13 are electrically connected in series, and when the main circuit switching device is opened, the interrupting part operating device 21 After the breaking part movable contact 6 of the breaking part 1 is separated from the breaking part fixed contact 5 by the opening operation and the current breaking operation by the breaking part 1 is performed, the disconnecting part 10 is disconnected by the opening operation by the disconnecting part operation device 23. The part cylindrical movable conductor 13 is separated from the disconnection part fixed side cylindrical finger contact 14 and the disconnection operation by the disconnection part 10 is performed.

この発明による実施の形態１における断路部１０の構成を示す図２および図３において、外径φＤ３の断路部固定側円筒状フィンガーコンタクト１４および断路部可動側円筒状フィンガーコンタクト１５が複数組形成されて設けられている。この例では４組の断路部固定側円筒状フィンガーコンタクト１４および断路部可動側円筒状フィンガーコンタクト１５が互いに対向するように配置されている。外径φＤ４の断路部円筒状可動導体１３は操作ロッド１９にフランジ１８を介して固定されているものであり、断路部固定側円筒状フィンガーコンタクト１４および断路部可動側円筒状フィンガーコンタクト１５と同数で構成され、図中水平方向に動作することにより断路部固定側円筒状フィンガーコンタクト１４との接離が可能となっている。
４本の断路部円筒状可動導体１３は円板上のフランジ１８の一面の周縁部に同一方向に延在して円周上に所定の間隔を置いて並設され、フランジ１８の他面に結合された操作ロッド１９によって断路部固定側円筒状フィンガーコンタクト１４のそれぞれに対し接離されるように開閉操作される。
ここで、断路部固定側円筒状フィンガーコンタクト１４の外径φＤ３および断路部円筒状可動導体１３の外径φＤ４は、従来技術における断路部固定接触子および断路部可動接触子の外径φＤ１およびφＤ２に対して十分に小さくなっている。
そして、断路部固定側円筒状フィンガーコンタクト１４は断路部固定側導体２０に取り付けられ、断路部可動側円筒状フィンガーコンタクト１５は断路部可動側導体１１に取り付けられている。
断路部１０は遮断部１における絶縁筒２の中心軸線と同一の軸線を中心として図示左方に配置され、前記軸線と平行に延在する断路部円筒状可動導体１３が延在方向に移動して接離する断路部固定側円筒状フィンガーコンタクト１４は前記軸線を中心とする円周上に所定の間隔を置いて等間隔に配置されている。
４本の断路部固定側円筒状フィンガーコンタクト１４のそれぞれは、断路部固定側導体２０を介して互いに電気的に並列接続され、４本の断路部可動側円筒状フィンガーコンタクト１５のそれぞれは、断路部可動側導体１１を介して互いに電気的に並列接続されている。図に示す通電時における断路部円筒状可動導体１３の断路部固定側円筒状フィンガーコンタクト１４への接合状態において、通電電流は４本の断路部固定側円筒状フィンガーコンタクト１４のそれぞれに分流し、その電流は断路部円筒状可動導体１３および断路部可動側円筒状フィンガーコンタクト１５を介してそれぞれ流通する。４組の断路部固定側円筒状フィンガーコンタクト１４および断路部可動側円筒状フィンガーコンタクト１５ならびに断路部円筒状可動導体１３は各組毎に通電容量を分担する形となり、それぞれの径を小径化できるものである。 2 and 3 showing the configuration of the disconnecting portion 10 in the first embodiment according to the present invention, a plurality of sets of disconnecting portion fixing side cylindrical finger contacts 14 and disconnecting portion movable side cylindrical finger contacts 15 having an outer diameter φD3 are formed. Is provided. In this example, four sets of disconnection portion fixed side cylindrical finger contacts 14 and disconnection portion movable side cylindrical finger contacts 15 are arranged to face each other. The disconnecting portion cylindrical movable conductor 13 having an outer diameter φD4 is fixed to the operating rod 19 via a flange 18, and is equal in number to the disconnecting portion fixed side cylindrical finger contact 14 and the disconnecting portion movable side cylindrical finger contact 15. It can be connected to and separated from the disconnection portion fixed side cylindrical finger contact 14 by moving in the horizontal direction in the figure.
The four disconnecting portion cylindrical movable conductors 13 extend in the same direction to the peripheral portion of one surface of the flange 18 on the disk, and are arranged in parallel at a predetermined interval on the circumference. Opening / closing operation is performed by the coupled operating rod 19 so as to be in contact with and separated from each of the disconnection portion fixing side cylindrical finger contacts 14.
Here, the outer diameter φD3 of the disconnection portion fixed side cylindrical finger contact 14 and the outer diameter φD4 of the disconnection portion cylindrical movable conductor 13 are the outer diameters φD1 and φD2 of the disconnection portion fixed contact and the disconnection portion movable contact in the prior art. Is sufficiently small.
The disconnection portion fixed side cylindrical finger contact 14 is attached to the disconnection portion fixed side conductor 20, and the disconnection portion movable side cylindrical finger contact 15 is attached to the disconnection portion movable side conductor 11.
The disconnecting part 10 is arranged on the left side of the figure about the same axis as the central axis of the insulating cylinder 2 in the interrupting part 1, and the disconnecting part cylindrical movable conductor 13 extending parallel to the axis moves in the extending direction. The disconnecting portion fixed-side cylindrical finger contacts 14 that come into contact with and separate from each other are arranged at equal intervals with a predetermined interval on the circumference centered on the axis.
Each of the four disconnecting part fixed side cylindrical finger contacts 14 is electrically connected in parallel to each other via a disconnecting part fixed side conductor 20, and each of the four disconnecting part movable side cylindrical finger contacts 15 is disconnected. They are electrically connected in parallel to each other through the movable part conductor 11. In the joined state of the disconnecting portion cylindrical movable conductor 13 to the disconnecting portion fixed side cylindrical finger contact 14 at the time of energization shown in the figure, the energizing current is shunted to each of the four disconnecting portion fixed side cylindrical finger contacts 14, The current flows through the disconnecting portion cylindrical movable conductor 13 and the disconnecting portion movable side cylindrical finger contact 15. The four sets of disconnecting portion fixed side cylindrical finger contacts 14, the disconnecting portion movable side cylindrical finger contacts 15 and the disconnecting portion cylindrical movable conductor 13 share a current carrying capacity for each set, and the diameter of each can be reduced. Is.

この発明による実施の形態１における断路部固定側フィンガーコンタクト１４および断路部可動側フィンガーコンタクト１５の構成を示す図４において、断路部固定側円筒状フィンガーコンタクト１４にはその先端から円筒状基部に設けられた傾斜部Ｂに至るまで断路部固定側円筒状フィンガーコンタクト１４の延長方向に延在する複数のスリットが設けられている。また、断路部可動側円筒状フィンガーコンタクト１５にはその先端から円筒状基部に設けられた傾斜部Ａに至るまで断路部可動側円筒状フィンガーコンタクト１５の延長方向に延在する複数のスリットが設けられている。 In FIG. 4 which shows the structure of the disconnection part fixed side finger contact 14 and disconnection part movable side finger contact 15 in Embodiment 1 by this invention, the disconnection part fixed side cylindrical finger contact 14 is provided in the cylindrical base from the front-end | tip. A plurality of slits extending in the extending direction of the disconnection portion fixing side cylindrical finger contact 14 are provided until the inclined portion B is formed. The disconnectable portion movable side cylindrical finger contact 15 is provided with a plurality of slits extending in the extending direction of the disconnectable portion movable side cylindrical finger contact 15 from the tip to the inclined portion A provided on the cylindrical base portion. It has been.

図２および図３に示す構成では、断路部可動接触子を構成する断路部円筒状可動導体１３および断路部固定接触子を構成する断路部固定側円筒状フィンガーコンタクト１４について、一例として４組の小径フィンガーコンタクトで構成するものにつき説明したが、２組以上であれば、任意組数の小径フィンガーコンタクトでの構成を採用することができる。
このように、この実施の形態１では、導電性および伝熱性に優れた銅系素材で形成される断路部可動接触子を構成する断路部円筒状可動導体１３および断路部固定接触子を構成する断路部固定側円筒状フィンガーコンタクト１４を例えば４組の複数組の小径フィンガーコンタクトで構成することによって、接触面積や通電面積を容易に確保することができることにより、小形化による製造組立性の改善と機器コストの低減を可能とすることができる。
すなわち、従来技術におけるような単一の円筒状フィンガーコンタクトを、この実施の形態１におけるような複数組の円筒状フィンガーコンタクト１３，１４で構成し、複数組の円筒状フィンガーコンタクト１３，１４を互いに並設して電気的に並列接続し通電電流を分流することにより、全体としての通電容量は各組の円筒状フィンガーコンタクト１３，１４にそれぞれ分担される形となって、それぞれの円筒状フィンガーコンタクト１３，１４では分担の結果により全体としての通電容量の数分の１の通電容量を確保するだけで良く、それぞれの円筒状フィンガーコンタクト１３，１４で接触面積や通電面積を容易に確保できるので、複数組の円筒状フィンガーコンタクト１３，１４のそれぞれの径は、従来技術におけるような単一の円筒状フィンガーコンタクトの径よりも格段に小さくすることができる。
この構造は、接触面積や通電面積を維持しながら小径コンタクトを複数個で構成し通電容量を確保するものである。したがって、円筒状フィンガーコンタクト１３，１４の小径化により、円筒状フィンガーコンタクトの製作性の向上によるコスト低下を実現できるとともに、複数組の円筒状フィンガーコンタクト１３，１４の各円筒状フィンガーコンタクト１３，１４は小径化により各円筒状フィンガーコンタクト１３，１４を支持する支持部分の構成も簡略化できて、その形状および重量も縮小軽減でき、小形化による製造組立性の改善と機器コストの低減を達成できるものである。殊に、大径コンタクトは、製作（条材）コストが非常に高く、小径コンタクトを多数作ることにより、大幅なコスト低減が可能となるメリットがある。 In the configuration shown in FIGS. 2 and 3, as an example, four sets of the disconnection portion cylindrical movable conductor 13 constituting the disconnection portion movable contact and the disconnection portion fixed side cylindrical finger contact 14 constituting the disconnection portion fixed contactor are provided. Although what is comprised by a small diameter finger contact was demonstrated, if it is 2 or more sets, the structure by the arbitrary number of small diameter finger contacts is employable.
Thus, in this Embodiment 1, the disconnection part cylindrical movable conductor 13 and the disconnection part fixed contact which comprise the disconnection part movable contact formed with the copper-type material excellent in electroconductivity and heat conductivity are comprised. By configuring the disconnection portion fixing side cylindrical finger contact 14 with, for example, four sets of small-diameter finger contacts, it is possible to easily secure a contact area and a current-carrying area, thereby improving manufacturing and assembling by downsizing. Equipment costs can be reduced.
That is, a single cylindrical finger contact as in the prior art is composed of a plurality of sets of cylindrical finger contacts 13 and 14 as in the first embodiment, and the plurality of sets of cylindrical finger contacts 13 and 14 are connected to each other. By arranging them in parallel and electrically connecting them in parallel, the current carrying capacity as a whole is shared by each pair of cylindrical finger contacts 13, 14. 13 and 14, it is only necessary to secure an energization capacity that is a fraction of the energization capacity as a whole according to the sharing result, and the contact area and the energization area can be easily secured with the respective cylindrical finger contacts 13 and 14. The diameter of each of the plurality of sets of cylindrical finger contacts 13, 14 is a single circle as in the prior art. It can be significantly smaller than the diameter of the Jo finger contact.
In this structure, a plurality of small-diameter contacts are formed while maintaining a contact area and a current-carrying area to ensure a current-carrying capacity. Therefore, by reducing the diameter of the cylindrical finger contacts 13 and 14, it is possible to realize cost reduction by improving the manufacturability of the cylindrical finger contacts, and the cylindrical finger contacts 13 and 14 of the plurality of sets of cylindrical finger contacts 13 and 14. The diameter can be reduced to simplify the structure of the support portion for supporting the cylindrical finger contacts 13 and 14 and the shape and weight thereof can be reduced and reduced. As a result, the manufacturing and assembly can be improved and the equipment cost can be reduced. Is. In particular, a large-diameter contact has a very high manufacturing (strip material) cost, and there is an advantage that a large cost reduction can be achieved by making many small-diameter contacts.

この発明による実施の形態１によれば、断路部固定側円筒状フィンガーコンタクト１４からなる筒状固定接触部片で構成される断路部固定接触子、断路部円筒状可動導体１３からなる筒状可動接触部片で構成される断路部可動接触子を備え、前記断路部固定接触子と前記断路部可動接触子とが互いに並設され電気的に並列接続されて通電電流を分流される複数の断路部固定側円筒状フィンガーコンタクト１４からなる筒状固定接触部片と複数の断路部円筒状可動導体１３からなる筒状可動接触部片とで構成されるようにしたので、断路部固定接触子および断路部可動接触子を構成する断路部固定側円筒状フィンガーコンタクト１４からなる筒状固定接触部片および複数の断路部円筒状可動導体１３からなる筒状可動接触部片のそれぞれを小径化して、小形化による製造組立性の改善と機器コストの低減を可能とする一体形主回路開閉装置としての電力用開閉装置を得ることができる。 According to the first embodiment of the present invention, a disconnecting portion fixed contact composed of a cylindrical fixed contact portion composed of a disconnecting portion fixed side cylindrical finger contact 14 and a cylindrical movable composed of a disconnecting portion cylindrical movable conductor 13. A plurality of disconnections provided with a disconnecting portion movable contact composed of a contact piece, wherein the disconnecting portion fixed contact and the disconnecting portion movable contact are arranged in parallel and electrically connected in parallel to shunt the energization current. Since the cylindrical fixed contact piece made up of the cylindrical finger contact 14 on the fixed part and the cylindrical movable contact piece made up of the plurality of disconnected cylindrical movable conductors 13 are formed, Each of the cylindrical fixed contact piece composed of the disconnection section fixed side cylindrical finger contact 14 and the cylindrical movable contact section composed of the plurality of disconnection section cylindrical movable conductors 13 constituting the disconnection section movable contact is reduced in diameter. , It is possible to obtain a power switching device as integral main circuit switchgear that enables a reduction in manufacturing and assembly of the improvements and equipment costs miniaturization.

実施の形態２．
この発明による実施の形態２を図５から図８までについて説明する。図５は実施の形態２における主回路開閉装置の構成を示す縦断面図である。図６は実施の形態２における主回路開閉装置の変形例に係る構成を示す縦断面図である。図７は実施の形態２における遮断部および主通電部の構成を示す縦断面図である。図８は図７のVIII−VIII線における断面図である。
この実施の形態２において、ここで説明する特有の構成以外の構成については、先に説明した実施の形態１における構成と同一の構成内容を具備し、同様の作用を奏するものである。図中、同一符号は同一または相当部分を示す。 Embodiment 2. FIG.
A second embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a longitudinal sectional view showing the configuration of the main circuit switchgear according to the second embodiment. FIG. 6 is a longitudinal sectional view showing a configuration according to a modification of the main circuit switchgear according to the second embodiment. FIG. 7 is a longitudinal sectional view showing the configuration of the blocking section and the main energizing section in the second embodiment. 8 is a cross-sectional view taken along line VIII-VIII in FIG.
In the second embodiment, the configuration other than the specific configuration described here has the same configuration contents as the configuration in the first embodiment described above, and exhibits the same operation. In the drawings, the same reference numerals indicate the same or corresponding parts.

この発明による実施の形態２における主回路開閉装置の構成を示す図５において、主回路開閉装置は一体形主回路開閉装置として構成され、この一体形主回路開閉装置には、電流を遮断するための遮断部１が設けられている。
遮断部１は、固定側導体３に固定された遮断部固定接触子５、および、遮断部固定接触子５と対向する遮断部可動接触子６を有している。遮断部可動接触子６は遮断部固定接触子５と接離可能に可動側導体４に取り付けられている。
また、遮断部１と電気的に並列接続された主通電部３０が設けられている。主通電部３０は、主通電部円筒状可動導体３３、主通電部固定側円筒状フィンガーコンタクト３４、主通電部可動側円筒状フィンガーコンタクト３５を有している。主通電部固定側円筒状フィンガーコンタクト３４は固定側導体３に固定されている。主通電部可動側円筒状フィンガーコンタクト３５は可動側導体４に固定されている。主通電部円筒状可動導体３３は、遮断部可動接触子６に固着されたフランジ３６に固定されて、一端を主通電部固定側円筒状フィンガーコンタクト３４と接離可能とされ、他端を主通電部可動側円筒状フィンガーコンタクト３５と接触状態に保持されている。
遮断部１および主通電部３０は、エポキシ樹脂などで製作された絶縁筒２に収納されている。絶縁筒２の一端面は固定側導体３に連接し、絶縁筒２の他端面は可動側導体４に連接する。 In FIG. 5 showing the configuration of the main circuit switchgear according to Embodiment 2 of the present invention, the main circuit switchgear is configured as an integrated main circuit switchgear, and this integrated main circuit switchgear has a structure for cutting off current. Is provided.
The blocking unit 1 includes a blocking unit fixed contact 5 fixed to the fixed-side conductor 3 and a blocking unit movable contact 6 facing the blocking unit fixed contact 5. The blocking portion movable contact 6 is attached to the movable conductor 4 so as to be able to contact and separate from the blocking portion fixed contact 5.
Further, a main energization unit 30 electrically connected in parallel with the blocking unit 1 is provided. The main energization section 30 includes a main energization section cylindrical movable conductor 33, a main energization section fixed side cylindrical finger contact 34, and a main energization section movable side cylindrical finger contact 35. The main energization portion fixed side cylindrical finger contact 34 is fixed to the fixed side conductor 3. The main energization portion movable-side cylindrical finger contact 35 is fixed to the movable-side conductor 4. The main energization portion cylindrical movable conductor 33 is fixed to a flange 36 fixed to the blocking portion movable contact 6 so that one end can be contacted and separated from the main energization portion fixed side cylindrical finger contact 34 and the other end is main. It is held in contact with the energizing portion movable side cylindrical finger contact 35.
The interruption | blocking part 1 and the main electricity supply part 30 are accommodated in the insulation cylinder 2 manufactured with the epoxy resin etc. One end face of the insulating cylinder 2 is connected to the fixed conductor 3, and the other end face of the insulating cylinder 2 is connected to the movable conductor 4.

そして、電圧を切るための断路部１０が設けられている。断路部１０は、断路部円筒状可動導体１３、断路部固定側円筒状フィンガーコンタクト１４および断路部可動側円筒状フィンガーコンタクト１５を有している。断路部固定側円筒状フィンガーコンタクト１４は断路部固定側導体２０に固定されている。断路部可動側円筒状フィンガーコンタクト１５は断路部可動側導体１１に固定されている。断路部円筒状可動導体１３は、移動可能なように断路部可動側導体１１に取り付けられて、一端を断路部固定側円筒状フィンガーコンタクト１４と接離可能とされ、他端を断路部可動側円筒状フィンガーコンタクト１５と接触状態に保持されている。
断路部１０を構成する断路部円筒状可動導体１３および断路部固定側円筒状フィンガーコンタクト１４は、実施の形態１における図２および図３に示す構成と同様の構成を有するものであって、断路部１０は遮断部１および主通電部３０を収納する絶縁筒２の軸線を中心として配置された遮断部１および主通電部３０と同一の軸線を中心として図示左方に配置され、断路部固定側円筒状フィンガーコンタクト１４は前記軸線を中心とする円周上に所定の間隔を置いて等間隔に配置されている。 And the disconnection part 10 for turning off a voltage is provided. The disconnecting part 10 includes a disconnecting part cylindrical movable conductor 13, a disconnecting part fixed side cylindrical finger contact 14, and a disconnecting part movable side cylindrical finger contact 15. The disconnection portion fixing side cylindrical finger contact 14 is fixed to the disconnection portion fixing side conductor 20. The disconnection part movable side cylindrical finger contact 15 is fixed to the disconnection part movable side conductor 11. The disconnecting portion cylindrical movable conductor 13 is attached to the disconnecting portion movable side conductor 11 so as to be movable, one end thereof can be contacted and separated from the disconnecting portion fixed side cylindrical finger contact 14, and the other end is connected to the disconnecting portion movable side. It is held in contact with the cylindrical finger contact 15.
The disconnecting portion cylindrical movable conductor 13 and the disconnecting portion fixed-side cylindrical finger contact 14 constituting the disconnecting portion 10 have the same configuration as the configuration shown in FIGS. 2 and 3 in the first embodiment. The portion 10 is arranged on the left side of the drawing around the same axis as the cutoff portion 1 and the main energization portion 30 arranged around the axis of the insulating cylinder 2 that houses the cutoff portion 1 and the main energization portion 30, and is fixed to the disconnection portion The side cylindrical finger contacts 14 are arranged at regular intervals with a predetermined interval on the circumference centered on the axis.

ここで、遮断部１の遮断部可動接触子６と主通電部３０の主通電部円筒状可動導体３３とはフランジ３６を介して一体に構成され、遮断部１の遮断部可動接触子６および主通電部３０の主通電部円筒状可動導体３３は遮断部操作装置２１によって絶縁操作ロッド２２を介して開閉操作される。断路部１０の断路部円筒状可動導体１３は断路部操作装置２３によって絶縁操作ロッド２４を介して開閉操作される。
遮断部可動接触子６を有する遮断部１と断路部円筒状可動導体１３を有する断路部１０とは電気的に直列接続されており、主回路開閉装置の開路動作時には、遮断部操作装置２１による開放操作によって絶縁操作ロッド２２を介して遮断部１の遮断部可動接触子６およびフランジ３６が駆動され、まず、主通電部３０の主通電部円筒状可動導体３３と主通電部固定側円筒状フィンガーコンタクト３４とが開離し、次に、遮断部可動接触子６が遮断部固定接触子５から開離して遮断部１による電流遮断動作が行われた後、断路部操作装置２３による開放操作によって絶縁操作ロッド２４ならびに操作ロッド１９およびフランジ１８を介して断路部１０の断路部円筒状可動導体１３が断路部固定側円筒状フィンガーコンタクト１４から開離し断路部１０による断路動作が行われる。 Here, the interrupting part movable contact 6 of the interrupting part 1 and the main energizing part cylindrical movable conductor 33 of the main energizing part 30 are integrally formed via a flange 36, and the interrupting part movable contact 6 of the interrupting part 1 and The main energization section cylindrical movable conductor 33 of the main energization section 30 is opened and closed by the shut-off section operating device 21 via the insulating operation rod 22. The disconnecting portion cylindrical movable conductor 13 of the disconnecting portion 10 is opened and closed by the disconnecting portion operating device 23 via the insulating operation rod 24.
The interrupting part 1 having the interrupting part movable contact 6 and the disconnecting part 10 having the disconnecting part cylindrical movable conductor 13 are electrically connected in series, and when the main circuit switching device is opened, the interrupting part operating device 21 By the opening operation, the interrupting portion movable contact 6 and the flange 36 of the interrupting portion 1 are driven via the insulating operation rod 22. First, the main energizing portion cylindrical movable conductor 33 of the main energizing portion 30 and the main energizing portion fixed side cylindrical shape. After the finger contact 34 is separated, the breaking portion movable contact 6 is separated from the breaking portion fixed contact 5 and the current breaking operation by the breaking portion 1 is performed, and then the opening operation by the disconnection portion operating device 23 is performed. The disconnecting portion cylindrical movable conductor 13 of the disconnecting portion 10 is separated from the disconnecting portion fixed side cylindrical finger contact 14 via the insulating operating rod 24, the operating rod 19 and the flange 18. 10 disconnection operation by is performed.

実施の形態２における遮断部および主通電部の構成を示す図７および図８において、主回路開閉装置に設けられた電流を遮断するための遮断部１は、エポキシ樹脂などで製作された絶縁筒２、固定側導体３に固定された遮断部固定接触子５、遮断部固定接触子５と対向する遮断部可動接触子６を有しており、遮断部可動接触子６は遮断部固定接触子５と接離可能に可動側導体４に取り付けられている。
また、主固定接触子を構成する主通電部固定側円筒状フィンガーコンタクト３４および可動側フィンガーコンタクト３５が設けられ、主可動接触子を構成する４本の主通電部円筒状可動導体３３は４本の主通電部固定側円筒状フィンガーコンタクト３４とそれぞれ接離可能となるように、フランジ３６を介して遮断部１の遮断部可動接触子６に取り付けられている。
主通電部固定側円筒状フィンガーコンタクト３４および主通電部可動側円筒状フィンガーコンタクト３５は固定側導体３および可動側導体４に電気的に接続されて取り付けられている。
ここで、４本の主通電部固定側円筒状フィンガーコンタクト３４および可動側フィンガーコンタクト３５は遮断部１を囲んで配置され、遮断部１の動作と共に主通電部円筒状可動導体３３が移動することにより主通電部固定側円筒状フィンガーコンタクト３４と接離可能となっている。 7 and 8 showing the configuration of the blocking unit and the main energizing unit in the second embodiment, the blocking unit 1 for blocking the current provided in the main circuit switching device is an insulating cylinder made of epoxy resin or the like. 2. A blocking portion fixed contact 5 fixed to the fixed-side conductor 3 and a blocking portion movable contact 6 facing the blocking portion fixed contact 5 are provided. The blocking portion movable contact 6 is a blocking portion fixed contact. 5 is attached to the movable conductor 4 so as to be able to come into contact with and separate from the movable conductor 4.
Further, a main energizing portion fixed side cylindrical finger contact 34 and a movable side finger contact 35 constituting the main fixed contact are provided, and four main energizing portions cylindrical movable conductors 33 constituting the main movable contact are provided. The main energization portion fixed side cylindrical finger contact 34 is attached to the shut-off portion movable contact 6 of the shut-off portion 1 via a flange 36 so as to be able to contact and separate.
The main energization portion fixed side cylindrical finger contact 34 and the main energization portion movable side cylindrical finger contact 35 are electrically connected to and attached to the fixed side conductor 3 and the movable side conductor 4.
Here, the four main current-carrying part fixed-side cylindrical finger contacts 34 and the movable-side finger contact 35 are disposed so as to surround the blocking part 1, and the main current-carrying part cylindrical movable conductor 33 moves along with the operation of the blocking part 1. Thus, the main energization portion fixed side cylindrical finger contact 34 can be contacted and separated.

４本の主通電部固定フィンガーコンタクト３４は遮断部１と一体に形成された固定側導体３の周縁部に取り付けられ、図７および図８に示すように、絶縁筒２の軸線方向に延在する４本の主通電部円筒状可動導体３３に対向して絶縁筒２の軸線を中心とする円周上で所定の間隔を置いて等間隔に配設されており、４本の主通電部固定フィンガーコンタクト３４を配設した円周の中心線上に遮断部固定接触子５および遮断部可動接触子６を有する遮断部１が配設されている。
遮断部１および主通電部３０は、エポキシ樹脂などで製作された絶縁筒２に収納される。絶縁筒２の一端面は固定側導体３に連接し、絶縁筒２の他端面は可動側導体４に連接する。
４本の主通電部固定側円筒状フィンガーコンタクト３４のそれぞれは、固定側導体３を介して互いに電気的に並列接続され、４本の主通電部可動側円筒状フィンガーコンタクト３５のそれぞれは、可動側導体４を介して互いに電気的に並列接続されている。図に示す通電時における主通電部円筒状可動導体３３の主通電部固定側円筒状フィンガーコンタクト３４への接合状態において、通電電流は４本の断路部固定側円筒状フィンガーコンタクト３４のそれぞれに分流し、その電流は主通電部円筒状可動導体３３および主通電部可動側円筒状フィンガーコンタクト３５を介してそれぞれ流通する。４組の主通電部固定側円筒状フィンガーコンタクト３４および主通電部可動側円筒状フィンガーコンタクト３５ならびに主通電部円筒状可動導体３３は各組毎に通電容量を分担する形となり、それぞれの径を小径化できるものである。 The four main energizing portion fixed finger contacts 34 are attached to the peripheral portion of the fixed-side conductor 3 formed integrally with the blocking portion 1 and extend in the axial direction of the insulating cylinder 2 as shown in FIGS. 7 and 8. The four main energization portions are arranged at equal intervals on the circumference centered on the axis of the insulating cylinder 2 so as to face the four main energization portions cylindrical movable conductors 33. The blocking unit 1 having the blocking unit fixed contact 5 and the blocking unit movable contact 6 is disposed on the center line of the circumference where the fixed finger contact 34 is disposed.
The interruption | blocking part 1 and the main electricity supply part 30 are accommodated in the insulation cylinder 2 manufactured with the epoxy resin etc. One end face of the insulating cylinder 2 is connected to the fixed conductor 3, and the other end face of the insulating cylinder 2 is connected to the movable conductor 4.
Each of the four main energization portion fixed side cylindrical finger contacts 34 is electrically connected in parallel to each other via the fixed side conductor 3, and each of the four main energization portion movable side cylindrical finger contacts 35 is movable. They are electrically connected to each other in parallel via the side conductors 4. In the state where the main energizing portion cylindrical movable conductor 33 is joined to the main energizing portion fixed side cylindrical finger contact 34 at the time of energization shown in the figure, the energizing current is distributed to each of the four disconnecting portion fixed side cylindrical finger contacts 34. The current flows through the main energizing portion cylindrical movable conductor 33 and the main energizing portion movable side cylindrical finger contact 35. The four sets of main energizing portion fixed side cylindrical finger contacts 34, the main energizing portion movable side cylindrical finger contacts 35, and the main energizing portion cylindrical movable conductor 33 share the energizing capacity for each set, and each has a diameter. The diameter can be reduced.

このように、実施の形態２における主回路開閉装置では、互いに並設され電気的に並列接続されて通電電流が分流される複数の主通電部断路部円筒状可動導体３３で構成される主可動接触子と前記複数の主通電部断路部円筒状可動導体３３にそれぞれ接離する複数の主通電部固定側円筒状フィンガーコンタクト３４で構成される主固定接触子とを有する主通電部３０、遮断部可動接触子６と遮断部固定接触子５とを有する遮断部１を備え、前記遮断部１と直列に、互いに並設され電気的に並列接続されて通電電流を分流される複数の断路部円筒状可動導体１３で構成される断路部可動接触子と前記複数の断路部円筒状可動導体１３にそれぞれ接離する複数の断路部固定側円筒状フィンガーコンタクト１４からなる断路部固定接触子とを有する断路部１０を接続し、一体形主回路開閉装置として構成したものである。 As described above, in the main circuit switching device according to the second embodiment, the main movable switch configured by the plurality of main energized portion disconnecting portion cylindrical movable conductors 33 that are arranged in parallel to each other and are electrically connected in parallel to each other. A main energization section 30 having a contact and a main fixed contact constituted by a plurality of main energization section fixed-side cylindrical finger contacts 34 that are in contact with and separated from the plurality of main energization section disconnection cylindrical movable conductors 33, respectively. A plurality of disconnecting portions that are provided in parallel with each other and are electrically connected in parallel to shunt the energization current in series with the blocking portion 1. A disconnecting portion movable contact composed of a cylindrical movable conductor 13 and a disconnecting portion fixed contact composed of a plurality of disconnecting portion fixed side cylindrical finger contacts 14 respectively contacting and separating from the plurality of disconnecting portion cylindrical movable conductors 13. Have Connect the road section 10, which is constituted as an integral form main circuit switchgear.

そして、この発明による実施の形態２は、以下の変形例を含むものである。図５に示す主回路開閉装置は、遮断部１および主通電部３０とともに断路部１０を一体に構成した一体形主回路開閉装置であるが、断路部１０を別体として構成することもできる。
この発明による実施の形態２における主回路開閉装置の変形例に係る構成を示す図６において、主回路開閉装置には、電流を遮断するための遮断部１が設けられている。遮断部１は、固定側導体３に固定された遮断部固定接触子５、および、遮断部固定接触子５と対向する遮断部可動接触子６を有している。遮断部可動接触子６は遮断部固定接触子５と接離可能に可動側導体４に取り付けられている。
また、主固定接触子を構成する主通電部固定側円筒状フィンガーコンタクト３４および可動側フィンガーコンタクト３５が設けられ、主可動接触子を構成する４本の主通電部円筒状可動導体３３は４本の主通電部固定側円筒状フィンガーコンタクト３４とそれぞれ接離可能となるように、フランジ３６を介して遮断部１の遮断部可動接触子６に取り付けられている。
主通電部固定側円筒状フィンガーコンタクト３４および主通電部可動側円筒状フィンガーコンタクト３５は固定側導体３および可動側導体４に電気的に接続されて取り付けられている。
ここで、４本の主通電部固定側円筒状フィンガーコンタクト３４および可動側フィンガーコンタクト３５は遮断部１を囲んで配置され、遮断部１の動作と共に主通電部円筒状可動導体３３が移動することにより主通電部固定側円筒状フィンガーコンタクト３４と接離可能となっている。
遮断部１および主通電部３０は、エポキシ樹脂などで製作された絶縁筒２に収納されている。絶縁筒２の一端面は固定側導体３に連接し、絶縁筒２の他端面は可動側導体４に連接する。
遮断部１および主通電部３０の詳細構成は、この実施の形態２で図７および図８について先に説明したものと同様である。 The second embodiment according to the present invention includes the following modifications. The main circuit switching device shown in FIG. 5 is an integrated main circuit switching device in which the disconnecting portion 10 is integrally formed with the interrupting portion 1 and the main energizing portion 30, but the disconnecting portion 10 can also be configured as a separate body.
In FIG. 6 which shows the structure which concerns on the modification of the main circuit switching device in Embodiment 2 by this invention, the interruption | blocking part 1 for interrupting | blocking an electric current is provided in the main circuit switching device. The blocking unit 1 includes a blocking unit fixed contact 5 fixed to the fixed-side conductor 3 and a blocking unit movable contact 6 facing the blocking unit fixed contact 5. The blocking portion movable contact 6 is attached to the movable conductor 4 so as to be able to contact and separate from the blocking portion fixed contact 5.
Further, a main energizing portion fixed side cylindrical finger contact 34 and a movable side finger contact 35 constituting the main fixed contact are provided, and four main energizing portions cylindrical movable conductors 33 constituting the main movable contact are provided. The main energization portion fixed side cylindrical finger contact 34 is attached to the shut-off portion movable contact 6 of the shut-off portion 1 via a flange 36 so as to be able to contact and separate.
The main energization portion fixed side cylindrical finger contact 34 and the main energization portion movable side cylindrical finger contact 35 are electrically connected to and attached to the fixed side conductor 3 and the movable side conductor 4.
Here, the four main current-carrying part fixed-side cylindrical finger contacts 34 and the movable-side finger contact 35 are disposed so as to surround the blocking part 1, and the main current-carrying part cylindrical movable conductor 33 moves along with the operation of the blocking part 1. Thus, the main energization portion fixed side cylindrical finger contact 34 can be contacted and separated.
The interruption | blocking part 1 and the main electricity supply part 30 are accommodated in the insulation cylinder 2 manufactured with the epoxy resin etc. One end face of the insulating cylinder 2 is connected to the fixed conductor 3, and the other end face of the insulating cylinder 2 is connected to the movable conductor 4.
Detailed configurations of the blocking unit 1 and the main energizing unit 30 are the same as those described above with reference to FIGS. 7 and 8 in the second embodiment.

図６に示す主回路開閉装置には、断路部は設けられておらず、遮断部１には主回路開閉装置とは別体の独立した断路器（図示せず）が直列接続される。
主回路開閉装置の開路動作時には、遮断部操作装置２１による開放操作によって絶縁操作ロッド２２を介して遮断部１の遮断部可動接触子６およびフランジ３６が駆動され、まず、主通電部３０の主通電部円筒状可動導体３３と主通電部固定側円筒状フィンガーコンタクト３４とが開離し、次に、遮断部可動接触子６が遮断部固定接触子５から開離して遮断部１による電流遮断動作が行われた後、遮断部１と直列接続された独立の断路器による断路動作が行われる。 The main circuit switchgear shown in FIG. 6 is not provided with a disconnecting part, and an independent disconnector (not shown) separate from the main circuit switchgear is connected in series to the interrupting part 1.
During the opening operation of the main circuit switching device, the shut-off portion movable contact 6 and the flange 36 of the shut-off portion 1 are driven via the insulating operation rod 22 by the opening operation by the shut-off portion operating device 21. The current-carrying part cylindrical movable conductor 33 and the main current-carrying part fixed-side cylindrical finger contact 34 are separated from each other, and then the interruption part movable contact 6 is separated from the interruption part fixed contact 5 and the current interruption operation by the interruption part 1 is performed. Is performed, a disconnecting operation is performed by an independent disconnector connected in series with the interrupting unit 1.

このように、実施の形態２における主回路開閉装置の変形例では、互いに並設され電気的に並列接続されて通電電流を分流される複数の主通電部断路部円筒状可動導体３３で構成される主可動接触子と前記複数の主通電部断路部円筒状可動導体３３にそれぞれ接離する複数の主通電部固定側円筒状フィンガーコンタクト３４で構成される主固定接触子とを有する主通電部３０、遮断部可動接触子６と遮断部固定接触子５とを有する遮断部１を備え、前記遮断部１と直列に、主回路開閉装置と別体の独立した断路器を接続したものである。 Thus, in the modification of the main circuit switchgear according to the second embodiment, the main circuit switching device includes a plurality of main energizing section disconnecting portions cylindrical movable conductors 33 arranged in parallel to each other and electrically connected in parallel to each other. A main energizing part having a plurality of main energizing part fixed side cylindrical finger contacts 34 which are in contact with and separated from the plurality of main energizing part disconnecting part cylindrical movable conductors 33 respectively. 30 is provided with a blocking unit 1 having a blocking unit movable contact 6 and a blocking unit fixed contact 5, and an independent disconnector separate from the main circuit switchgear is connected in series with the blocking unit 1. .

図７および図８に示す構成では、断路部可動接触子を構成する断路部円筒状可動導体１３および断路部固定接触子を構成する断路部固定側円筒状フィンガーコンタクト１４について、一例として４組の小径フィンガーコンタクトで構成するものにつき説明したが、２組以上であれば、任意組数の小径フィンガーコンタクトでの構成を採用することができる。
以上のように、この実施の形態２では、導電性および伝熱性に優れた銅系素材で形成される主可動接触子を構成する主通電部円筒状可動導体３３および主固定接触子を構成する断路部固定側円筒状フィンガーコンタクト３４を例えば４組の小径フィンガーコンタクトで構成することにより、接触面積や通電面積を容易に確保することができ、小形化による製造組立性の改善と機器コストの低減を可能とすることができる。 In the configuration shown in FIGS. 7 and 8, as an example, four sets of the disconnection portion cylindrical movable conductor 13 constituting the disconnection portion movable contact and the disconnection portion fixed side cylindrical finger contact 14 constituting the disconnection portion fixed contactor are provided. Although what is comprised by a small diameter finger contact was demonstrated, if it is 2 or more sets, the structure by the arbitrary number of small diameter finger contacts is employable.
As described above, in the second embodiment, the main energizing portion cylindrical movable conductor 33 and the main fixed contact constituting the main movable contact formed of a copper-based material excellent in conductivity and heat transfer are configured. By configuring the disconnection portion fixed side cylindrical finger contact 34 with, for example, four sets of small-diameter finger contacts, a contact area and a current-carrying area can be easily ensured, and manufacturing and assembling can be improved and equipment cost can be reduced by downsizing. Can be made possible.

この発明による実施の形態２によれば、主通電部固定側円筒状フィンガーコンタクト３４からなる筒状固定接触部片で構成される主固定接触子と前記主通電部固定側円筒状フィンガーコンタクト３４からなる筒状固定接触部片に接離する主通電部円筒状可動導体３３からなる筒状可動接触部片で構成される主可動接触子とを有する主通電部３０、遮断部固定接触子５と遮断部可動接触子６とを有する遮断部１、互いに並設され電気的に並列接続されて通電電流を分流される複数の断路部固定側円筒状フィンガーコンタクト１４からなる筒状固定接触部片で構成される断路部固定接触子と複数の断路部円筒状可動導体１３からなる筒状可動接触部片で構成される断路部可動接触子と前記複数の断路部固定側円筒状フィンガーコンタクト１４からなる筒状固定接触部片にそれぞれ接離する複数の断路部円筒状可動導体１３からなる筒状可動接触部片で構成される断路部可動接触子とを有する断路部１０を備え、前記主通電部３０における前記主固定接触子と前記主可動接触子とが互いに並設され電気的に並列接続されて通電電流を分流される複数の主通電部固定側円筒状フィンガーコンタクト３４からなる筒状固定接触部片と複数の主通電部円筒状可動導体３３からなる筒状可動接触部片とで構成されるとともに、複数の主通電部固定側円筒状フィンガーコンタクト３４からなる筒状固定接触部片と複数の主通電部円筒状可動導体３３からなる筒状可動接触部片とが前記遮断部１を囲んで配設されるようにし、前記遮断部１と直列に前記断路部１０を接続して断路作用を行わせるようにしたので、主固定接触子および主可動接触子を構成する複数の主通電部固定側円筒状フィンガーコンタクト３４からなる筒状固定接触部片および複数の主通電部円筒状可動導体３３からなる筒状可動接触部片のそれぞれを小径化するとともに、断路部固定接触子および断路部可動接触子を構成する複数の断路部固定側円筒状フィンガーコンタクト１４からなる筒状固定接触部片および複数の断路部円筒状可動導体１３からなる筒状可動接触部片のそれぞれを小径化して、小形化による製造組立性の改善と機器コストの低減を可能とし、かつ、複数の主通電部固定側円筒状フィンガーコンタクト３４からなる筒状固定接触部片と主通電部円筒状可動導体３３からなる筒状可動接触部片とが遮断部１を囲んで配設されることにより装置の小形化をさらに推進できる一体形主回路開閉装置としての電力用開閉装置を得ることができる。 According to the second embodiment of the present invention, from the main fixed contact formed of a cylindrical fixed contact piece composed of the main energized portion fixed side cylindrical finger contact 34 and the main energized portion fixed side cylindrical finger contact 34. A main energizing part 30 having a main movable contactor composed of a cylindrical movable contact part made of a cylindrical movable conductor 33 which is in contact with and separating from the cylindrical fixed contact part consisting of, and a blocking part fixed contactor 5; A blocking portion 1 having a blocking portion movable contact 6, a cylindrical fixed contact piece comprising a plurality of disconnecting portion fixed side cylindrical finger contacts 14 that are arranged in parallel to each other and are electrically connected in parallel to shunt the energizing current. From the disconnection part movable contact configured by the cylindrical movable contact part composed of the disconnection part fixed contact and the plurality of disconnection part cylindrical movable conductors 13 and the plurality of disconnection part fixed side cylindrical finger contacts 14. A disconnecting portion 10 having a disconnecting portion movable contact composed of a cylindrical movable contact portion consisting of a plurality of disconnecting portion cylindrical movable conductors 13 contacting and separating from the cylindrical fixed contact portion. The main stationary contact and the main movable contact in the section 30 are arranged in parallel with each other and are electrically connected in parallel to each other, and a cylindrical fixing composed of a plurality of main energizing portion fixing side cylindrical finger contacts 34 to which an energizing current is shunted. A cylindrical fixed contact piece made up of a plurality of main energized portion fixed side cylindrical finger contacts 34, and a contact piece and a cylindrical movable contact piece made up of a plurality of main energized portion cylindrical movable conductors 33 A cylindrical movable contact piece made up of a plurality of main conductive parts cylindrical movable conductors 33 is disposed so as to surround the blocking part 1, and the disconnecting part 10 is connected in series with the blocking part 1. To make it work Therefore, the cylindrical fixed contact piece composed of the plurality of main energizing portion fixed side cylindrical finger contacts 34 and the cylindrical shape composed of the plurality of main energizing portion cylindrical movable conductors 33 constituting the main fixed contact and the main movable contact. Each of the movable contact portion pieces is reduced in diameter, and the tubular fixed contact portion piece and the plurality of disconnection portions are constituted by a disconnection portion fixed contact and a plurality of disconnection portion fixing side cylindrical finger contacts 14 constituting the disconnection portion movable contact. Each of the cylindrical movable contact pieces made of the cylindrical movable conductor 13 is reduced in diameter to improve manufacturing and assembling and reduce the equipment cost by reducing the size, and a plurality of main energized portion fixed side cylindrical finger contacts. A cylindrical fixed contact piece made up of 34 and a cylindrical movable contact piece made up of the main conducting portion cylindrical movable conductor 33 are disposed so as to surround the blocking portion 1, thereby reducing the size of the apparatus. Further, a power switchgear as an integrated main circuit switchgear that can be further propelled can be obtained.

また、この発明による実施の形態２によれば、主通電部固定側円筒状フィンガーコンタクト３４からなる筒状固定接触部片で構成される主固定接触子と前記主通電部固定側円筒状フィンガーコンタクト３４からなる筒状固定接触部片に接離する主通電部円筒状可動導体３３からなる筒状可動接触部片で構成される主可動接触子とを有する主通電部３０、遮断部固定接触子５と遮断部可動接触子６とを有する遮断部１を備え、前記主通電部３０における前記主固定接触子と前記主可動接触子とが互いに並設され電気的に並列接続されて通電電流が分流される複数の主通電部固定側円筒状フィンガーコンタクト３４からなる筒状固定接触部片と複数の主通電部円筒状可動導体３３からなる筒状可動接触部片とで構成されるとともに、複数の主通電部固定側円筒状フィンガーコンタクト３４からなる筒状固定接触部片と複数の主通電部円筒状可動導体３３からなる筒状可動接触部片とが前記遮断部１を囲んで配設されるようにし、前記遮断部１と直列に主回路開閉装置とは別体の独立した断路器を接続し断路作用を行わせるようにしたので、主固定接触子および主可動接触子を構成する複数の主通電部固定側円筒状フィンガーコンタクト３４からなる筒状固定接触部片および複数の主通電部円筒状可動導体３３からなる筒状可動接触部片のそれぞれを小径化して、小形化による製造組立性の改善と機器コストの低減を可能とし、かつ、複数の主通電部固定側円筒状フィンガーコンタクト３４からなる筒状固定接触部片と複数の主通電部円筒状可動導体３３からなる筒状可動接触部片とが遮断部１を囲んで配設されることにより装置の小形化をさらに推進できる主回路開閉装置としての電力用開閉装置を得ることができる。 Further, according to the second embodiment of the present invention, a main fixed contact composed of a cylindrical fixed contact piece composed of a main energized portion fixed side cylindrical finger contact 34 and the main energized portion fixed side cylindrical finger contact. A main energizing part 30 having a main movable contact composed of a cylindrical movable contact part composed of a cylindrical movable conductor 33 which is in contact with and away from a cylindrical fixed contact part consisting of 34; The main stationary contact and the main movable contact in the main energization unit 30 are arranged in parallel to each other and electrically connected in parallel so that an energization current is generated. A plurality of main current-carrying part fixed-side cylindrical finger contacts 34 to be divided into a cylindrical fixed contact piece and a plurality of main current-carrying part cylindrical movable conductors 33 are formed. Main energization of A cylindrical fixed contact piece made up of a fixed cylindrical finger contact 34 and a cylindrical movable contact piece made up of a plurality of main conducting parts cylindrical movable conductors 33 are disposed so as to surround the blocking part 1; Since an independent disconnector separate from the main circuit switchgear is connected in series with the interrupting unit 1 to perform the disconnecting action, a plurality of main energizing units constituting the main fixed contactor and the main movable contactor Reducing the diameter of each of the cylindrical fixed contact piece made up of the fixed-side cylindrical finger contacts 34 and the cylindrical movable contact piece made up of the plurality of main conducting parts cylindrical movable conductors 33, and improving manufacturing and assembling performance by downsizing. It is possible to reduce the device cost, and a cylindrical fixed contact piece composed of a plurality of main energizing section fixed side cylindrical finger contacts 34 and a cylindrical movable contact section composed of a plurality of main energized sections cylindrical movable conductors 33 Is blocked Can further promote size reduction of the apparatus by being disposed to surround the part 1 can be obtained power switching device as a main circuit switching device.

この発明による実施の形態１における主回路開閉装置の構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure of the main circuit switchgear in Embodiment 1 by this invention. この発明による実施の形態１における断路部の構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure of the disconnection part in Embodiment 1 by this invention. この発明による実施の形態１における断路部の構成を示す正面図である。It is a front view which shows the structure of the disconnection part in Embodiment 1 by this invention. この発明による実施の形態１における断路部可動接触子と断路部固定接触子の構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure of the disconnection part movable contact in Embodiment 1 by this invention, and a disconnection part fixed contact. この発明による実施の形態２における主回路開閉装置の構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure of the main circuit switchgear in Embodiment 2 by this invention. この発明による実施の形態２における主回路開閉装置の変形例に係る構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure which concerns on the modification of the main circuit switchgear in Embodiment 2 by this invention. この発明による実施の形態２における遮断部および主通電部の構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure of the interruption | blocking part and main electricity supply part in Embodiment 2 by this invention. 図７のVIII−VIII線における断面図である。It is sectional drawing in the VIII-VIII line of FIG.

Explanation of symbols

１遮断部、２絶縁筒、３固定側導体、４可動側導体、４ａ隔壁、５遮断部固定接触子、６遮断部可動接触子、１０断路部、１１断路部可動側導体、１３断路部円筒状可動導体、１４断路部固定側円筒状フィンガーコンタクト、１５断路部可動側円筒状フィンガーコンタクト、１８フランジ、１９操作ロッド、２０断路部固定側導体、２１遮断部操作装置、２２絶縁操作ロッド、２３断路部操作装置、２４絶縁操作ロッド、３０主通電部、３３主通電部円筒状可動導体、３４主通電部固定側円筒状フィンガーコンタクト、３５主通電部可動側円筒状フィンガーコンタクト、３６フランジ。
DESCRIPTION OF SYMBOLS 1 interruption | blocking part, 2 insulation cylinder, 3 fixed side conductor, 4 movable side conductor, 4a partition, 5 interruption | blocking part fixed contact, 6 interruption | blocking part movable contact, 10 disconnection part, 11 disconnection part movable side conductor, 13 disconnection part cylinder -Shaped movable conductor, 14 disconnection portion fixed side cylindrical finger contact, 15 disconnection portion movable side cylindrical finger contact, 18 flange, 19 operation rod, 20 disconnection portion fixed side conductor, 21 breaker operation device, 22 insulation operation rod, 23 Disconnection part operation device, 24 insulation operation rod, 30 main energization part, 33 main energization part cylindrical movable conductor, 34 main energization part fixed side cylindrical finger contact, 35 main energization part movable side cylindrical finger contact, 36 flange.

Claims

A fixed contact configured by a cylindrical fixed contact piece; a movable contact configured by a cylindrical movable contact piece contacting and separating from the cylindrical fixed contact piece; and the fixed contact and the movable contact Is composed of a plurality of cylindrical fixed contact pieces and a plurality of cylindrical movable contact pieces to which an energization current is shunted.

A main energizing part having a main fixed contact formed of a cylindrical fixed contact piece and a main movable contact formed of a cylindrical movable contact piece contacting and separating from the cylindrical fixed contact piece fixed to the cut-off part A plurality of cylindrical fixed contact pieces and a plurality of cylindrical fixed contact pieces, each of which includes a cutoff portion having a contact and a cutoff portion movable contact, and in which the main stationary contact and the main movable contact in the main energization portion shunt current. And the plurality of cylindrical fixed contact pieces and the plurality of cylindrical movable contact pieces are disposed so as to surround the blocking portion. Power switchgear.