JP2019523517A - Functional module for expansion of GIS uninterruptible bus and its expansion method - Google Patents

Functional module for expansion of GIS uninterruptible bus and its expansion method Download PDF

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JP2019523517A
JP2019523517A JP2017568336A JP2017568336A JP2019523517A JP 2019523517 A JP2019523517 A JP 2019523517A JP 2017568336 A JP2017568336 A JP 2017568336A JP 2017568336 A JP2017568336 A JP 2017568336A JP 2019523517 A JP2019523517 A JP 2019523517A
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switch device
gis
air cell
movable contact
bus
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JP6634457B2 (en
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長虹 張
長虹 張
准 ▲パン▼
准 ▲パン▼
海軍 王
海軍 王
万民 李
万民 李
帥 李
帥 李
潔珊 李
潔珊 李
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中国南方電网有限責任公司超高圧輸電公司検修試験中心
上海思源高圧開関有限公司
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

筐体と、二重ブレークスイッチ装置と、駆動装置と、臨時接地スイッチ装置とからなるＧＩＳ無停電母線増設用機能モジュールであって、前記筐体が柱状であり、筐体の両端が導通方向であり、前記筐体内には３つの二重ブレークスイッチ装置が取り付けられ、それぞれの二重ブレークスイッチ装置に対して、１つの駆動装置と１つの臨時接地スイッチ装置とが付属され、前記筐体の内腔はハーメチックシールされて、第１エアセルを構成し、前記３つの二重ブレークスイッチ装置は、互いに接触せずに導通方向に沿って、互いに平行して第１エアセル内に設置され、前記筐体の両端の同期閉極又は開極に用いられ、前記臨時接地スイッチ装置は筐体に取り付けられ、二重ブレークスイッチ装置の接地操作を行うために用いられるＧＩＳ無停電母線増設用機能モジュール。当該機能モジュールは簡単で、安全で、信頼性が高く、ＧＩＳ母線の増設実装時に、元の運転母線を停電せずに接続実装を行うことができる。【選択図】図１GIS uninterruptible bus extension functional module comprising a case, a double break switch device, a drive device, and a temporary ground switch device, wherein the case has a columnar shape and both ends of the case are in a conduction direction. There are three double break switch devices mounted in the case, and one drive device and one temporary ground switch device are attached to each double break switch device. The cavity is hermetically sealed to form a first air cell, and the three double break switch devices are installed in the first air cell in parallel with each other along the conduction direction without contacting each other, and the housing The temporary grounding switch device is attached to a housing and used for grounding the double break switch device. Bus expansion for the function module. The function module is simple, safe and reliable, and can be connected and mounted without powering off the original operating bus when the GIS bus is expanded and mounted. [Selection] Figure 1

Description

本発明は、２２０ｋＶ以上の電圧レベルの変換所・変電所の設備分野に関し、具体的には、ＧＩＳ無停電母線増設用機能モジュール及びその増設方法に関する。   The present invention relates to the field of equipment for conversion stations and substations having a voltage level of 220 kV or higher, and more specifically, to a functional module for adding a GIS uninterruptible bus and its extension method.

電気事業の発展に伴い、発電・送電・変電の国民経済における重要性が特に高まっているが、現在、各変電所のＧＩＳ建設プロセスにおいて、プロジェクトの前期計画等の一連の理由によって、一部のＧＩＳ母線が工事施工中で一度に実装し終わることができないため、第２期増設工事で母線を増設する必要がある。   With the development of the electricity business, the importance of power generation, transmission, and substation in the national economy has been increasing. Since the GIS bus cannot be mounted at once during the construction work, it is necessary to add the bus in the second expansion work.

母線を増設するには、元の運転母線との接続及び交換試験を行うことが必要で、現在の主流のメーカーのＧＩＳ構造設計によると、当該プロセスはいずれも元の母線をそれぞれ２回停電させる必要があり、変電所の設備運転に大きな運転リスクと停電による膨大な経済損失をもたらすことになる。   In order to increase the number of buses, it is necessary to perform connection and exchange tests with the original operating buses, and according to the current mainstream manufacturer's GIS structure design, both of these processes cause power outages at the original buses twice. It is necessary, and it will bring great operational risk and huge economic loss due to power outage to the operation of substation equipment.

ＧＩＳ母線を増設するには母線全体を停電させる必要があるという欠点を解消するためには、母線増設プロセス中に運転設備を停電させる必要がないことを確保し、また、接続プロセスにおいて、他のガス隔離室におけるＳＦ６ガスの処理時間を短くすることができ、プロジェクトの増設時間の短縮と増設プロセスにおいて元の設備にもたらすリスクの低減を有効的に実現し、工事の施工効率を大きく向上させるとともに、母線の停電による経済損失を避けることができる、新たなＧＩＳ構造機能モジュールを設計することが要求される。   In order to eliminate the disadvantage that it is necessary to power out the entire bus to expand the GIS bus, it is ensured that there is no need to power out the operating equipment during the bus expansion process, The processing time of SF6 gas in the gas isolation room can be shortened, effectively reducing the project extension time and reducing the risk to the original equipment in the extension process, and greatly improving the construction efficiency. Therefore, it is required to design a new GIS structure functional module that can avoid economic loss due to power failure of the bus.

経済の発展に伴い、ＧＩＳ製品はマーケット上で自身の構造の敷地面積が小さく、運転故障率が低く、重量が軽く、メンテンナス不要であるといった一連の利点によって、ますます多く適用されている。   With the development of the economy, GIS products are increasingly being applied on the market due to a series of advantages such as a small area of its structure on the market, a low operating failure rate, light weight and no need for maintenance.

いままでのＧＩＳ設備のメーカーの第２期増設構造に対する設計から見れば、第１期で実装し終わったＧＩＳ母線には専用の増設インターフェイスモジュールがなく、第２期で増設される母線の実装のために適宜ベースを残されておくだけであるが、第２期母線増設工事には以下の問題がある。
１．ＧＩＳ母線を増設実装する前に、元の運転母線を停電させ、接続区分の母線のエアセルにおけるＳＦ６ガスを回収して初めて接続実装することができる。
２．新たに接続されたＧＩＳ母線では、通電運転する前に、基準によると、商用周波耐電圧試験のテストを行うべきであるが、新旧の母線区分には専用のブレークの設計がないため、旧ＧＩＳ母線も商用周波試験電圧を耐える必要があり、その絶縁に対しては累積破壊効果がある。 From the viewpoint of the design for the second phase expansion structure of the GIS equipment manufacturers so far, the GIS bus line that has been mounted in the first phase does not have a dedicated expansion interface module. For this reason, the base is left as appropriate, but the second bus extension work has the following problems.
1. Before the additional installation of the GIS bus, the original operation bus can be cut off, and the SF6 gas in the air cell of the bus in the connection section can be recovered and connected and mounted.
2. Newly connected GIS busbars should be tested for commercial frequency withstand voltage tests according to the standards before energizing operation, but the old and new GIS busbars do not have a dedicated break design, so the old GIS The busbar must also withstand commercial frequency test voltages and has a cumulative destructive effect on its insulation.

運転部署にとっては、変電所の母線を停電させることが、工事の進度の遅延、人手や物資の浪費、及び停電による直接的又は間接的な経済損失を意味し、一方、旧母線は商用周波耐電圧試験のテストを繰り返して耐えることになるから、その運転に対する絶縁累積破壊効果の潜在的なリスクも計り知れない。   For operating departments, power outages at substation buses mean delays in work progress, waste of manpower and supplies, and direct or indirect economic losses due to power outages, while old buses are resistant to commercial frequency resistance. Since the voltage test will endure repeatedly, the potential risk of the cumulative breakdown effect on its operation is immeasurable.

大まかな概算によると、５００ｋＶの変電所・変換所にとって、一日の停電による直接な経済損失は数百万元以上にも及び、さらに、一部の変電所では、大型の製錬所、重要な政府機関部門等の上下流クライアントの特殊性によって、母線を停電させることが非常に困難であり、工事の運転開始時間に大きく影響し、間接的に莫大な経済損失を引き起こすことになる。   A rough estimate is that for a 500kV substation / conversion station, the direct economic loss due to a one-day power outage is more than several million yuan, and in some substations, large smelters are important. Due to the peculiarities of upstream and downstream clients such as government agencies, it is very difficult to power out the bus, greatly affecting the operation start time of construction, and indirectly causing enormous economic losses.

本発明は、前記従来技術の欠点を無くし、停電せずに母線の端部を増設できるＧＩＳ無停電母線増設用機能モジュール及その増設方法を提供することを目的とする。   It is an object of the present invention to provide a functional module for adding a GIS uninterruptible bus and an extension method thereof, which can eliminate the drawbacks of the prior art and increase the end of the bus without a power failure.

本発明は、以下の技術手段によって達成される。
筐体と、二重ブレークスイッチ装置と、駆動装置と、臨時接地スイッチ装置とからなるＧＩＳ無停電母線増設用機能モジュールであって、前記筐体が柱状であり、筐体の両端が導通方向であり、前記筐体内には３つの二重ブレークスイッチ装置が取り付けられ、それぞれの二重ブレークスイッチ装置に対して、１つの駆動装置と１つの臨時接地スイッチ装置とが付属され、前記筐体の内腔はハーメチックシールされて、第１エアセルを構成し、前記３つの二重ブレークスイッチ装置は、互いに接触せずに導通方向に沿って、互いに平行して第１エアセル内に配置され、前記筐体の両端の同期閉極又は開極に用いられ、前記二重ブレークスイッチ装置の両端には第１ブレークと第２ブレークとが配置され、前記二重ブレークスイッチ装置は駆動装置の駆動によって、第１ブレーク及び第２ブレークを同時にオンにして、前記筐体の両端を導通させることができ、前記臨時接地スイッチ装置は筐体に取り付けられ、二重ブレークスイッチ装置の接地操作を行うために用いられるＧＩＳ無停電母線増設用機能モジュール。 The present invention is achieved by the following technical means.
GIS uninterruptible bus extension functional module comprising a case, a double break switch device, a drive device, and a temporary ground switch device, wherein the case has a columnar shape and both ends of the case are in a conduction direction. There are three double break switch devices mounted in the case, and one drive device and one temporary ground switch device are attached to each double break switch device. The cavity is hermetically sealed to form a first air cell, and the three double break switch devices are arranged in the first air cell in parallel with each other along the conduction direction without contacting each other, and the housing The first break and the second break are arranged on both ends of the double break switch device, and the double break switch device is driven. By driving the device, the first break and the second break can be turned on at the same time, and both ends of the housing can be made conductive. The temporary ground switch device is attached to the housing, and the double break switch device is grounded. GIS uninterruptible bus extension function module used for

上記手段の改良として、前記二重ブレークスイッチ装置は、中心導体と、可動接点と、固定接点と、伝動機構とからなり、前記中心導体が柱状であり、その軸心位置には軸線方向である中心チャンネルが配置され、中心導体の外周位置には前記中心チャンネルに繋がるサイドチャンネルが配置され、中心チャンネルの両端の側壁には、可動接点を挟持して中心導体と可動接点を導通させる第１コイルスプリングが配置され、前記可動接点の外周と前記中心チャンネルとが動きばめされ、可動接点の一端の軸心位置には雌ネジ穴が配置され、前記固定接点の軸心位置には、前記可動接点に対応する接点穴が配置され、前記接点穴の内壁には、可動接点を挟持して固定接点と可動接点とを導通させる第２コイルスプリングが配置され、前記伝動機構は、伝動スクリューと、第１かさ歯車と、第２かさ歯車と、絶縁ロッドとからなり、前記伝動スクリューの両端にはいずれも前記可動接点の雌ネジ穴に対応する雄ネジ部が配置され、その中部はスムーズなロッド部であり、前記第１かさ歯車はスムーズなロッド部に同軸装着され、前記第２かさ歯車は前記絶縁ロッドの一端に同軸装着され、３つの中心導体は断面方向において「品」字状に前記第１エアセル内に配置され、前記伝動スクリューは、中心チャンネルを通して中心導体の内部へ入り込み、伝動スクリューにおける第１かさ歯車と前記サイドチャンネルとの位置関係が対応し、中心導体の両端のそれぞれに１つの可動接点が挿入され、前記伝動スクリューの雄ネジ部が可動接点の雌ネジ穴にねじ込まれ、前記絶縁ロッドの第２かさ歯車の配置された一端がサイドチャンネルへ入り込み、第１かさ歯車と第２かさ歯車とが噛み合い、前記絶縁ロッドの他端が前記駆動装置に接続され、筐体の内部の導通方向の両側に、それぞれの可動接点に対応して１つの固定接点が配置され、前記固定接点の接点穴が可動接点に面して配置され、前記駆動装置が伝動スクリューの回転を駆動して、両端が第１コイルスプリングによって挟持された可動接点を軸方向に往復運動させ、可動接点が中心導体から出た後、固定接点の接点穴に挿入され、両端の固定接点をオン／オフにすることができる。   As an improvement of the above means, the double break switch device includes a center conductor, a movable contact, a fixed contact, and a transmission mechanism, and the center conductor has a columnar shape, and its axial center position is in the axial direction. A center channel is disposed, a side channel connected to the center channel is disposed at the outer peripheral position of the center conductor, and a first coil that sandwiches the movable contact between the side walls at both ends of the center channel and makes the center conductor and the movable contact conductive. A spring is disposed, the outer periphery of the movable contact and the center channel are moved and fitted, a female screw hole is disposed at the axial center of one end of the movable contact, and the movable is disposed at the axial center of the fixed contact. A contact hole corresponding to the contact is disposed, and a second coil spring is disposed on the inner wall of the contact hole to sandwich the movable contact and to connect the fixed contact and the movable contact. Is composed of a transmission screw, a first bevel gear, a second bevel gear, and an insulating rod, and both ends of the transmission screw are provided with male screw portions corresponding to the female screw holes of the movable contact, The middle portion is a smooth rod portion, the first bevel gear is coaxially mounted on the smooth rod portion, the second bevel gear is coaxially mounted on one end of the insulating rod, and the three central conductors are `` The transmission screw enters the center conductor through the center channel, and the positional relationship between the first bevel gear and the side channel in the transmission screw corresponds to the center conductor. One movable contact is inserted into each of both ends of the transmission screw, the male screw portion of the transmission screw is screwed into the female screw hole of the movable contact, and the second rod of the insulating rod is inserted. One end where the gear is disposed enters the side channel, the first bevel gear and the second bevel gear mesh with each other, the other end of the insulating rod is connected to the drive device, One fixed contact is arranged corresponding to each movable contact, the contact hole of the fixed contact is arranged facing the movable contact, the driving device drives the rotation of the transmission screw, and both ends are the first coil. The movable contact held by the spring is reciprocated in the axial direction, and after the movable contact comes out of the central conductor, it is inserted into the contact hole of the fixed contact, and the fixed contacts at both ends can be turned on / off.

この構造は、主に三相一括母線の端部の増設に用いられ、三相一括構造であり、伝動は主にスクリューとかさ歯車による伝動方式が採用される。   This structure is mainly used for the extension of the end of a three-phase collective bus, and is a three-phase collective structure, and a transmission system mainly using a screw and a bevel gear is adopted.

前記手段の改良として、前記中心導体を支持して筐体の内部に取り付けるために用いられる支持碍子を含む。   An improvement of the means includes a support insulator used to support and attach the central conductor to the interior of the housing.

前記手段の改良として、前記筐体の両端はボウル型碍子であり、前記固定接点がボウル型碍子に取り付けられている。   As an improvement of the means, both ends of the housing are bowl-type insulators, and the fixed contact is attached to the bowl-type insulator.

前記手段の改良として、前記臨時接地スイッチ装置では、筐体の内部に１つのレバー機構が配置され、手動でレバーの位置を設定することにより、前記中心導体と筐体を導通させて接地操作を行う。   As an improvement of the means, in the temporary grounding switch device, one lever mechanism is disposed inside the housing, and by manually setting the position of the lever, the center conductor and the housing are electrically connected to perform grounding operation. Do.

前記手段の改良として、前記絶縁ロッドの素材はエポキシ樹脂である。   As an improvement of the means, the material of the insulating rod is an epoxy resin.

順次に接続されるＧＩＳの第１期運転母線ポートと、請求項１から６のいずれか１項に記載のＧＩＳ無停電母線増設用機能モジュールと、第２エアセル及び第２エアセルに取り付けられた接地ナイフブレードと、第３エアセル及び第３エアセルに取り付けられたＧＩＳの第２期増設ポートとからなるＧＩＳ無停電母線の増設方法であって、具体的な方法とステップは以下のようであるＧＩＳ無停電母線の増設方法。
Ｓ１．母線が正常運転時に、第１エアセル、第２エアセル、第３エアセル内に定格圧力のガスが充填され、二重ブレークスイッチ装置が開極状態にあり、臨時接地スイッチ装置が開極状態にあり、接地ナイフブレードが閉極状態にある。
Ｓ２．増設接続時に、第１エアセルに定格圧力のガスを充填させ、第２エアセル内におけるガスを安全気圧まで低減させ、第３エアセル内におけるガスを回収し、ＧＩＳの第２期増設ポートに対してワイヤの接続を行い、接続終了後、接地ナイフブレードによって回路試験信号を採集する。
Ｓ３．増設後に耐電圧試験を行い、第２エアセル内に定格圧力のガスを充填させ、二重ブレークスイッチ装置が開極状態にあり、臨時接地スイッチ装置が閉極状態にあり、接地ナイフブレードが開極状態にあることを確保する。
Ｓ４．耐電圧試験終了後に、二重ブレークスイッチ装置を閉極させ、臨時接地スイッチ装置が開極状態にあり、接地ナイフブレードが開極状態にあり、増設終了後、実用に用いる。 The GIS first operation bus port connected in sequence, the GIS uninterruptible bus extension functional module according to any one of claims 1 to 6, and the ground attached to the second air cell and the second air cell A method for adding a GIS uninterruptible bus consisting of a knife blade, a third air cell, and a second extension port of GIS attached to the third air cell. The specific method and steps are as follows. How to add a blackout bus.
S1. When the bus is in normal operation, the first air cell, the second air cell, and the third air cell are filled with the rated pressure gas, the double break switch device is in the open state, the temporary ground switch device is in the open state, Ground knife blade is closed.
S2. At the time of expansion connection, fill the first air cell with gas at the rated pressure, reduce the gas in the second air cell to a safe atmospheric pressure, collect the gas in the third air cell, and wire to the second expansion port of GIS After the connection is completed, a circuit test signal is collected by the ground knife blade.
S3. After the expansion, a withstand voltage test is performed, the gas at the rated pressure is filled in the second air cell, the double break switch device is open, the temporary ground switch device is closed, and the ground knife blade is open Ensure that it is in a state.
S4. After the withstand voltage test is completed, the double break switch device is closed, the temporary ground switch device is in the open state, and the ground knife blade is in the open state.

本発明は、以下の好ましい効果を有する。
１．ＧＩＳ母線の増設実装時に、元の運転母線を停電せずに接続実装を行うことができ、簡単で、安全で、信頼的なＧＩＳ無停電母線増設用機能モジュールを提供する。
２．ＧＩＳ無停電母線増設用機能モジュールの構造は簡単で、増設端の事前設置のコストを大きく低減し、広範囲に普及して適用されるのに適している。
３．増設実装のプロセスが簡略化され、工作効率を向上させ、増設コストを大きく低減する。 The present invention has the following preferable effects.
1. Provide a simple, safe and reliable GIS uninterruptible bus extension function module that can connect and mount the original operation bus without power failure when installing the GIS bus.
2. The structure of the functional module for expanding the GIS uninterruptible bus is simple, greatly reducing the cost of preinstallation of the expansion end, and suitable for being widely spread and applied.
3. The expansion mounting process is simplified, the work efficiency is improved, and the expansion cost is greatly reduced.

本発明のＧＩＳ無停電母線増設用機能モジュールの筐体の切開口付き構造模式図である。It is a structure schematic diagram with the opening of the housing | casing of the functional module for GIS uninterruptible bus line expansion of this invention. 本発明のＧＩＳ無停電母線増設用機能モジュールの断面模式図である。It is a cross-sectional schematic diagram of the functional module for GIS uninterruptible bus extension of the present invention. 図２の領域Ａの一部拡大模式図である。FIG. 3 is a partially enlarged schematic diagram of a region A in FIG. 2. 本発明のＧＩＳ無停電母線増設の原理の模式図である。It is a schematic diagram of the principle of GIS uninterruptible bus extension of the present invention.

（実施例）
図１から図３に示されるように、筐体１と、二重ブレークスイッチ装置２と、駆動装置３と、臨時接地スイッチ装置４と、支持碍子５とからなるＧＩＳ無停電母線増設用機能モジュールであって、前記筐体１が柱状であり、筐体１の両端が導通方向であり、前記筐体１内には３つの二重ブレークスイッチ装置２が取り付けられ、それぞれの二重ブレークスイッチ装置２に対して、１つの駆動装置３と１つの臨時接地スイッチ装置４とが付属され、前記筐体１の内腔はハーメチックシールされて、第１エアセル６を構成し、前記３つの二重ブレークスイッチ装置２は、互いに接触せずに導通方向に沿って、互いに平行して第１エアセル６内に設置され、前記筐体１の両端の同期閉極又は開極に用いられ、前記二重ブレークスイッチ装置２の両端には第１ブレーク７と第２ブレーク８とが配置され、前記二重ブレークスイッチ装置２は駆動装置３の駆動によって、第１ブレーク７及び第２ブレーク８を同時にオンにして、前記筐体１の両端を導通させることができ、前記臨時接地スイッチ装置４は筐体１に取り付けられ、二重ブレークスイッチ装置２の接地操作を行うために用いられるＧＩＳ無停電母線増設用機能モジュール。前記二重ブレークスイッチ装置２は、中心導体９と、可動接点１０と、固定接点１１と、伝動機構１２とからなり、前記中心導体９が柱状であり、その軸心位置には軸線方向である中心チャンネル１３が配置され、中心導体９の外周位置には前記中心チャンネル１３に繋がるサイドチャンネル１４が配置され、中心チャンネル１３の両端の側壁には、可動接点１０を挟持して中心導体９と可動接点１０とを導通させる第１コイルスプリング１５が配置され、前記可動接点１０の外周と前記中心チャンネル１３とが動きばめされ、可動接点１０の一端の軸心位置には雌ネジ穴１６が配置され、前記固定接点１１の軸心位置には、前記可動接点１０に対応する接点穴１７が配置され、前記接点穴１７の内壁には、可動接点１０を挟持して固定接点１１と可動接点１０とを導通させる第２コイルスプリング１８が配置され、前記伝動機構１２は、伝動スクリュー１９と、第１かさ歯車２０と、第２かさ歯車２１と、絶縁ロッド２２とからなり、前記伝動スクリュー１９の両端にはいずれも前記可動接点１０の雌ネジ穴１６に対応する雄ネジ部２３が配置され、その中部はスムーズなロッド部２４であり、前記第１かさ歯車２０はスムーズなロッド部２４に同軸装着され、前記第２かさ歯車２１は前記絶縁ロッド２２の一端に同軸装着され、３つの中心導体９は断面方向において「品」字状に前記第１エアセル６内に配置され、前記伝動スクリュー１９は中心チャンネル１３を通して中心導体９の内部へ入り込み、伝動スクリュー１９における第１かさ歯車２０と前記サイドチャンネル１４との位置関係が対応し、中心導体９の両端のそれぞれに１つの可動接点１０が挿入され、前記伝動スクリュー１９の雄ネジ部２３が可動接点１０の雌ネジ穴１６にねじ込まれ、前記絶縁ロッド２２の第２かさ歯車２１の配置された一端がサイドチャンネル１４へ入り込み、第１かさ歯車２０と第２かさ歯車２１とが噛み合い、前記絶縁ロッド２２の他端が前記駆動装置３に接続され、筐体１の内部の導通方向の両側に、それぞれの可動接点１０に対応して１つの固定接点１１が配置され、前記固定接点１１の接点穴１７が可動接点１０に面して配置され、前記駆動装置３が伝動スクリュー１９の回転を駆動して、両端が第１コイルスプリング１５によって挟持された可動接点１０を軸方向に往復運動させ、可動接点１０が中心導体９から出た後、固定接点１１の接点穴１７中に挿入され、両端の固定接点１１をオン／オフにすることができる。前記支持碍子５が前記中心導体９を支持して筐体１の内部に取り付けるために用いられる。前記筐体１の両端はボウル型碍子２５であり、前記固定接点１１がボウル型碍子２５に取り付けられている。前記臨時接地スイッチ装置４では、筐体１の内部に１つのレバー機構２６が配置され、手動でレバーの位置を設定することにより、前記中心導体９と筐体１とを導通させて接地操作を行う。前記絶縁ロッド２２の素材はエポキシ樹脂である。 (Example)
As shown in FIG. 1 to FIG. 3, a functional module for expanding a GIS uninterruptible bus comprising a housing 1, a double break switch device 2, a drive device 3, a temporary ground switch device 4, and a support insulator 5. The casing 1 has a columnar shape, both ends of the casing 1 are in the conduction direction, and three double break switch devices 2 are mounted in the casing 1, and each double break switch device 2, one drive device 3 and one temporary ground switch device 4 are attached, and the inner cavity of the housing 1 is hermetically sealed to form a first air cell 6, and the three double breaks The switch device 2 is installed in the first air cell 6 in parallel with each other along the conduction direction without contacting each other, and is used for synchronous closing or opening at both ends of the housing 1. Both ends of switch device 2 The first break 7 and the second break 8 are arranged, and the double break switch device 2 turns on the first break 7 and the second break 8 simultaneously by driving the driving device 3 to A functional module for adding a GIS uninterruptible bus, which can be connected at both ends, and the temporary ground switch device 4 is attached to the housing 1 and used for grounding the double break switch device 2. The double break switch device 2 includes a center conductor 9, a movable contact 10, a fixed contact 11, and a transmission mechanism 12. The center conductor 9 has a columnar shape, and its axial center position is in the axial direction. A center channel 13 is arranged, side channels 14 connected to the center channel 13 are arranged at the outer peripheral position of the center conductor 9, and movable contacts 10 are sandwiched between side walls at both ends of the center channel 13 to move with the center conductor 9. A first coil spring 15 for conducting the contact 10 is disposed, the outer periphery of the movable contact 10 and the center channel 13 are moved and fitted, and a female screw hole 16 is disposed at the axial center of one end of the movable contact 10. A contact hole 17 corresponding to the movable contact 10 is disposed at the axial center position of the fixed contact 11, and the movable contact 10 is sandwiched between the inner walls of the contact hole 17. 1 and the movable contact 10 are disposed, and the transmission mechanism 12 includes a transmission screw 19, a first bevel gear 20, a second bevel gear 21, and an insulating rod 22. Both ends of the transmission screw 19 are provided with male screw portions 23 corresponding to the female screw holes 16 of the movable contact 10, the middle portion thereof is a smooth rod portion 24, and the first bevel gear 20 is smooth. The second bevel gear 21 is coaxially mounted on the rod portion 24, the one end of the insulating rod 22 is coaxially mounted, and the three central conductors 9 are disposed in the first air cell 6 in a "product" shape in the cross-sectional direction. The transmission screw 19 enters the inside of the central conductor 9 through the central channel 13, and the first bevel gear 20 in the transmission screw 19 and the side channel 14. The movable contact 10 is inserted into both ends of the center conductor 9, the male screw portion 23 of the transmission screw 19 is screwed into the female screw hole 16 of the movable contact 10, and the insulating rod 22 is inserted. One end of the second bevel gear 21 is inserted into the side channel 14, the first bevel gear 20 and the second bevel gear 21 are engaged, and the other end of the insulating rod 22 is connected to the driving device 3. One fixed contact 11 corresponding to each movable contact 10 is arranged on both sides in the conduction direction inside the body 1, and a contact hole 17 of the fixed contact 11 is arranged facing the movable contact 10, and the drive After the device 3 drives the rotation of the transmission screw 19 to reciprocate the movable contact 10 whose both ends are sandwiched by the first coil spring 15 in the axial direction, and the movable contact 10 comes out of the central conductor 9. The fixed contact 11 is inserted into the contact hole 17 of the fixed contact 11 and the fixed contacts 11 at both ends can be turned on / off. The support insulator 5 is used to support the center conductor 9 and attach it to the inside of the housing 1. Both ends of the housing 1 are bowl-type insulators 25, and the fixed contact 11 is attached to the bowl-type insulator 25. In the temporary grounding switch device 4, one lever mechanism 26 is disposed inside the housing 1, and by manually setting the position of the lever, the center conductor 9 and the housing 1 are electrically connected to perform a grounding operation. Do. The material of the insulating rod 22 is an epoxy resin.

図４に示されるように、順次に接続されるＧＩＳの第１期運転母線ポートと、請求項１から６のいずれか１項に記載のＧＩＳ無停電母線増設用機能モジュールと、第２エアセル及び第２エアセルに取り付けられた接地ナイフブレードと、第３エアセル及び第３エアセルに取り付けられたＧＩＳの第２期増設ポートとからなるＧＩＳ無停電母線の増設方法であって、具体的な方法とステップは以下のようであるＧＩＳ無停電母線の増設方法。
Ｓ１．母線が正常運転時に、第１エアセル６、第２エアセル、第３エアセル内に定格圧力のガスが充填され、二重ブレークスイッチ装置２が開極状態にあり、臨時接地スイッチ装置４が開極状態にあり、接地ナイフブレードが閉極状態にある。
Ｓ２．増設接続時に、第１エアセル６に定格圧力のガスを充填させ、第２エアセル内におけるガスを安全気圧まで低減させ、第３エアセル内におけるガスを回収し、ＧＩＳの第２期増設ポートに対してワイヤの接続を行い、接続終了後、接地ナイフブレードによって回路試験信号を採集する。
Ｓ３．増設後に耐電圧試験を行い、第２エアセル内に定格圧力のガスを充填させ、二重ブレークスイッチ装置２が開極状態にあり、臨時接地スイッチ装置４が閉極状態にあり、接地ナイフブレードが開極状態にあることを確保する。
Ｓ４．耐電圧試験終了後に、二重ブレークスイッチ装置２を閉極させ、臨時接地スイッチ装置４が開極状態にあり、接地ナイフブレードが開極状態にあり、増設終了後、実用に用いる。 As shown in FIG. 4, the GIS first operation bus port connected sequentially, the GIS uninterruptible bus extension functional module according to any one of claims 1 to 6, a second air cell, A method for adding a GIS uninterruptible bus comprising a grounding knife blade attached to a second air cell and a third air cell and a second extension port of GIS attached to the third air cell. Is the following method of adding GIS uninterruptible buses.
S1. When the bus is in normal operation, the first air cell 6, the second air cell, and the third air cell are filled with the rated pressure gas, the double break switch device 2 is in the open state, and the temporary ground switch device 4 is in the open state. The grounding knife blade is in a closed state.
S2. At the time of expansion connection, the first air cell 6 is filled with the gas at the rated pressure, the gas in the second air cell is reduced to the safe atmospheric pressure, the gas in the third air cell is recovered, and the GIS second expansion port is connected. Wire connection is performed, and after the connection is completed, a circuit test signal is collected by a ground knife blade.
S3. After the expansion, a withstand voltage test is performed, the gas at the rated pressure is filled in the second air cell, the double break switch device 2 is in the open state, the temporary ground switch device 4 is in the closed state, and the ground knife blade is Ensure that the circuit is open.
S4. After the endurance test, the double break switch device 2 is closed, the temporary ground switch device 4 is in the open state, and the ground knife blade is in the open state.

前記詳細な説明は本発明の実施可能な実施例を具体的に説明したものであり、本発明の特許請求の範囲は該実施例によって制限されず、本発明の趣旨を逸脱しない範囲で行われる均等な実施又は変更はいずれも本発明の特許請求の範囲に含まれる。   The foregoing detailed description specifically describes the embodiments in which the present invention can be implemented, and the scope of the claims of the present invention is not limited by the embodiments, and is performed without departing from the spirit of the present invention. Any equivalent implementations or modifications are intended to be within the scope of the claims.

（付記）
（付記１）
筐体と、二重ブレークスイッチ装置と、駆動装置と、臨時接地スイッチ装置とからなるＧＩＳ無停電母線増設用機能モジュールであって、前記筐体が柱状であり、筐体の両端が導通方向であり、前記筐体内には３つの二重ブレークスイッチ装置が取り付けられ、それぞれの二重ブレークスイッチ装置に対して、一つの駆動装置と一つの臨時接地スイッチ装置とが付属され、
前記筐体の内腔はハーメチックシールされて、第１エアセルを構成し、
前記３つの二重ブレークスイッチ装置は、互に接触せずに導通方向に沿って、互いに平行して第１エアセル内に設置され、前記筐体の両端の同期閉極又は開極に用いられ、前記二重ブレークスイッチ装置の両端には第１ブレークと第２ブレークとが配置され、前記二重ブレークスイッチ装置は駆動装置の駆動によって、第１ブレーク及び第２ブレークを同時にオンにして、前記筐体の両端を導通させることができ、
前記臨時接地スイッチ装置は筐体に取り付けられ、二重ブレークスイッチ装置の接地操作を行うために用いられることを特徴とするＧＩＳ無停電母線増設用機能モジュール。 (Appendix)
(Appendix 1)
GIS uninterruptible bus extension functional module comprising a case, a double break switch device, a drive device, and a temporary ground switch device, wherein the case has a columnar shape and both ends of the case are in a conduction direction. There are three double break switch devices mounted in the housing, and for each double break switch device, one drive device and one temporary ground switch device are attached,
The inner cavity of the housing is hermetically sealed to form a first air cell;
The three double break switch devices are installed in the first air cell in parallel with each other along the conduction direction without contacting each other, and are used for synchronous closing or opening at both ends of the casing, A first break and a second break are arranged at both ends of the double break switch device, and the double break switch device turns on the first break and the second break at the same time by driving the drive device, and Can connect both ends of the body,
The GIS uninterruptible bus extension functional module, wherein the temporary ground switch device is attached to a casing and used for grounding the double break switch device.

（付記２）
前記二重ブレークスイッチ装置は、中心導体と、可動接点と、固定接点と、伝動機構とからなり、前記中心導体が柱状であり、その軸心位置には軸線方向である中心チャンネルが配置され、中心導体の外周位置には前記中心チャンネルに繋がるサイドチャンネルが配置され、中心チャンネルの両端の側壁には、可動接点を挟持して中心導体と可動接点を導通させる第１コイルスプリングが配置され、前記可動接点の外周と前記中心チャンネルとが動きばめされ、可動接点の一端の軸心位置には雌ネジ穴が配置され、前記固定接点の軸心位置には、前記可動接点に対応する接点穴が配置され、前記接点穴の内壁には、可動接点を挟持して固定接点と可動接点を導通させる第２コイルスプリングが配置され、前記伝動機構は、伝動スクリューと、第１かさ歯車と、第２かさ歯車と、絶縁ロッドとからなり、前記伝動スクリューの両端にはいずれも前記可動接点の雌ネジ穴に対応する雄ネジ部が配置され、その中部はスムーズなロッド部であり、前記第１かさ歯車はスムーズなロッド部に同軸装着され、前記第２かさ歯車は前記絶縁ロッドの一端に同軸装着され、３つの中心導体は断面方向において「品」字状に前記第１エアセル内に配置され、前記伝動スクリューは、中心チャンネルを通して中心導体の内部へ入り込み、伝動スクリューにおける第１かさ歯車と前記サイドチャンネルとの位置関係が対応し、中心導体の両端のそれぞれに１つの可動接点が挿入され、前記伝動スクリューの雄ネジ部が可動接点の雌ネジ穴にねじ込まれ、前記絶縁ロッドの第２かさ歯車の配置された一端がサイドチャンネルへ入り込み、第１かさ歯車と第２かさ歯車とが噛み合い、前記絶縁ロッドの他端が前記駆動装置に接続され、筐体の内部の導通方向の両側に、それぞれの可動接点に対応して１つの固定接点が配置され、前記固定接点の接点穴が可動接点に面して配置され、前記駆動装置が伝動スクリューの回転を駆動して、両端が第１コイルスプリングによって挟持された可動接点を軸方向に往復運動させ、可動接点が中心導体から出た後、固定接点の接点穴に挿入され、両端の固定接点をオン／オフにすることができることを特徴とする付記１に記載のＧＩＳ無停電母線増設用機能モジュール。 (Appendix 2)
The double break switch device comprises a central conductor, a movable contact, a fixed contact, and a transmission mechanism, the central conductor is columnar, and a central channel in the axial direction is arranged at the axial center position thereof, Side channels connected to the center channel are disposed at the outer peripheral position of the center conductor, and first coil springs are disposed on the side walls at both ends of the center channel to sandwich the movable contact and make the center conductor and the movable contact conductive. The outer periphery of the movable contact and the center channel are fitted, a female screw hole is disposed at the axial center of one end of the movable contact, and the contact hole corresponding to the movable contact is disposed at the axial center of the fixed contact. Is disposed on the inner wall of the contact hole, and a second coil spring is disposed to sandwich the movable contact and electrically connect the fixed contact and the movable contact, and the transmission mechanism includes a transmission screw, It consists of a 1 bevel gear, a 2nd bevel gear, and an insulating rod, and both ends of the transmission screw are provided with male screw portions corresponding to the female screw holes of the movable contact, and the middle portion is a smooth rod portion The first bevel gear is coaxially mounted on the smooth rod portion, the second bevel gear is coaxially mounted on one end of the insulating rod, and the three central conductors are in the shape of a "product" in the cross-sectional direction. Arranged in one air cell, the transmission screw enters the inside of the central conductor through the central channel, and the positional relationship between the first bevel gear and the side channel in the transmission screw corresponds to each other, one at each end of the central conductor. A movable contact is inserted, a male screw portion of the transmission screw is screwed into a female screw hole of the movable contact, and one end where the second bevel gear of the insulating rod is disposed is The first bevel gear and the second bevel gear mesh with each other, the other end of the insulating rod is connected to the drive device, and corresponds to the respective movable contacts on both sides in the conduction direction inside the housing. One fixed contact is arranged, the contact hole of the fixed contact is arranged to face the movable contact, the driving device drives the rotation of the transmission screw, and both ends are clamped by the first coil spring. The GIS according to appendix 1, wherein the movable contact is inserted into a contact hole of the fixed contact after the movable contact comes out of the central conductor, and the fixed contacts at both ends can be turned on / off. Function module for uninterruptible bus extension.

（付記３）
さらに、前記中心導体を支持して筐体の内部に取り付けるために用いられる支持碍子を含むことを特徴とする付記２に記載のＧＩＳ無停電母線増設用機能モジュール。 (Appendix 3)
The GIS uninterruptible bus extension functional module according to appendix 2, further comprising a support insulator used for supporting the central conductor and attaching it to the inside of the housing.

（付記４）
前記筐体の両端はボウル型碍子であり、前記固定接点がボウル型碍子に取り付けられていることを特徴とする付記２に記載のＧＩＳ無停電母線増設用機能モジュール。 (Appendix 4)
The GIS uninterruptible bus extension functional module according to appendix 2, wherein both ends of the casing are bowl-type insulators, and the fixed contacts are attached to the bowl-type insulator.

（付記５）
前記臨時接地スイッチ装置では、筐体の内部に１つのレバー機構が配置され、手動でレバーの位置を設定することにより、前記中心導体と筐体を導通させて接地操作を行うことを特徴とする付記２に記載のＧＩＳ無停電母線増設用機能モジュール。 (Appendix 5)
In the temporary ground switch device, one lever mechanism is disposed inside the housing, and by manually setting the position of the lever, the center conductor and the housing are electrically connected to perform a grounding operation. GIS uninterruptible bus extension functional module as described in Appendix 2.

（付記６）
前記絶縁ロッドの素材はエポキシ樹脂であることを特徴とする付記２から５のいずれか１つに記載のＧＩＳ無停電母線増設用機能モジュール。 (Appendix 6)
The functional module for adding a GIS uninterruptible bus according to any one of appendices 2 to 5, wherein the material of the insulating rod is an epoxy resin.

（付記７）
順次に接続されるＧＩＳの第１期運転母線ポートと、付記１から６のいずれか１つに記載のＧＩＳ無停電母線増設用機能モジュールと、第２エアセル及び第２エアセルに取り付けられた接地ナイフブレードと、第３エアセル及び第３エアセルに取り付けられたＧＩＳの第２期増設ポートとからなるＧＩＳ無停電母線の増設方法であって、具体的な方法とステップは以下のようであることを特徴とするＧＩＳ無停電母線の増設方法。
Ｓ１．母線が正常運転時に、第１エアセル、第２エアセル、第３エアセル内に定格圧力のガスが充填され、二重ブレークスイッチ装置が開極状態にあり、臨時接地スイッチ装置が開極状態にあり、接地ナイフブレードが閉極状態にある。
Ｓ２．増設接続時に、第１エアセルに定格圧力のガスを充填させ、第２エアセル内におけるガスを安全気圧まで低減させ、第３エアセル内におけるガスを回収し、ＧＩＳの第２期増設ポートに対してワイヤの接続を行い、接続終了後、接地ナイフブレードによって回路試験信号を採集する。
Ｓ３．増設後に耐電圧試験を行い、第２エアセル内に定格圧力のガスを充填させ、二重ブレークスイッチ装置が開極状態にあり、臨時接地スイッチ装置が閉極状態にあり、接地ナイフブレードが開極状態にあることを確保する。
Ｓ４．耐電圧試験終了後、二重ブレークスイッチ装置を閉極させ、臨時接地スイッチ装置が開極状態にあり、接地ナイフブレードが開極状態にあり、増設終了後、実用に用いる。 (Appendix 7)
GIS first operation bus port connected in sequence, GIS uninterruptible bus extension functional module according to any one of appendices 1 to 6, and grounding knife attached to second air cell and second air cell A method of adding a GIS uninterruptible bus consisting of a blade, a third air cell, and a second extension port of GIS attached to the third air cell, and the specific method and steps are as follows: GIS uninterruptible bus extension method.
S1. When the bus is in normal operation, the first air cell, the second air cell, and the third air cell are filled with the rated pressure gas, the double break switch device is in the open state, the temporary ground switch device is in the open state, Ground knife blade is closed.
S2. At the time of expansion connection, fill the first air cell with gas at the rated pressure, reduce the gas in the second air cell to a safe atmospheric pressure, collect the gas in the third air cell, and wire to the second expansion port of GIS After the connection is completed, a circuit test signal is collected by the ground knife blade.
S3. After the expansion, a withstand voltage test is performed, the gas at the rated pressure is filled in the second air cell, the double break switch device is open, the temporary ground switch device is closed, and the ground knife blade is open Ensure that it is in a state.
S4. After the withstand voltage test is completed, the double break switch device is closed, the temporary ground switch device is in the open state, and the ground knife blade is in the open state.

１ 筐体
２ 二重ブレークスイッチ装置
３ 駆動装置
４ 臨時接地スイッチ装置
５ 支持碍子
６ 第１エアセル
７ 第１ブレーク
８ 第２ブレーク
９ 中心導体
１０ 可動接点
１１ 固定接点
１２ 伝動機構
１３ 中心チャンネル
１４ サイドチャンネル
１５ 第１コイルスプリング
１６ 雌ネジ穴
１７ 接点穴
１８ 第２コイルスプリング
１９ 伝動スクリュー
２０ 第１かさ歯車
２１ 第２かさ歯車
２２ 絶縁ロッド
２３ 雄ネジ部
２４ スムーズ部
２５ ボウル型碍子
２６ レバー機構 DESCRIPTION OF SYMBOLS 1 Case 2 Double break switch apparatus 3 Drive apparatus 4 Temporary earthing switch apparatus 5 Support insulator 6 1st air cell 7 1st break 8 2nd break 9 Center conductor 10 Movable contact 11 Fixed contact 12 Power transmission mechanism 13 Central channel 14 Side channel 15 First coil spring 16 Female screw hole 17 Contact hole 18 Second coil spring 19 Transmission screw 20 First bevel gear 21 Second bevel gear 22 Insulating rod 23 Male thread portion 24 Smooth portion 25 Bowl type insulator 26 Lever mechanism

Claims (7)

筐体と、二重ブレークスイッチ装置と、駆動装置と、臨時接地スイッチ装置とからなるＧＩＳ無停電母線増設用機能モジュールであって、前記筐体が柱状であり、筐体の両端が導通方向であり、前記筐体内には３つの二重ブレークスイッチ装置が取り付けられ、それぞれの二重ブレークスイッチ装置に対して、一つの駆動装置と一つの臨時接地スイッチ装置とが付属され、
前記筐体の内腔はハーメチックシールされて、第１エアセルを構成し、
前記３つの二重ブレークスイッチ装置は、互に接触せずに導通方向に沿って、互いに平行して第１エアセル内に設置され、前記筐体の両端の同期閉極又は開極に用いられ、前記二重ブレークスイッチ装置の両端には第１ブレークと第２ブレークとが配置され、前記二重ブレークスイッチ装置は駆動装置の駆動によって、第１ブレーク及び第２ブレークを同時にオンにして、前記筐体の両端を導通させることができ、
前記臨時接地スイッチ装置は筐体に取り付けられ、二重ブレークスイッチ装置の接地操作を行うために用いられることを特徴とするＧＩＳ無停電母線増設用機能モジュール。 GIS uninterruptible bus extension functional module comprising a case, a double break switch device, a drive device, and a temporary ground switch device, wherein the case has a columnar shape and both ends of the case are in a conduction direction. There are three double break switch devices mounted in the housing, and for each double break switch device, one drive device and one temporary ground switch device are attached,
The inner cavity of the housing is hermetically sealed to form a first air cell;
The three double break switch devices are installed in the first air cell in parallel with each other along the conduction direction without contacting each other, and are used for synchronous closing or opening at both ends of the casing, A first break and a second break are arranged at both ends of the double break switch device, and the double break switch device turns on the first break and the second break at the same time by driving the drive device, and Can connect both ends of the body,
The GIS uninterruptible bus extension functional module, wherein the temporary ground switch device is attached to a casing and used for grounding the double break switch device. 前記二重ブレークスイッチ装置は、中心導体と、可動接点と、固定接点と、伝動機構とからなり、前記中心導体が柱状であり、その軸心位置には軸線方向である中心チャンネルが配置され、中心導体の外周位置には前記中心チャンネルに繋がるサイドチャンネルが配置され、中心チャンネルの両端の側壁には、可動接点を挟持して中心導体と可動接点を導通させる第１コイルスプリングが配置され、前記可動接点の外周と前記中心チャンネルとが動きばめされ、可動接点の一端の軸心位置には雌ネジ穴が配置され、前記固定接点の軸心位置には、前記可動接点に対応する接点穴が配置され、前記接点穴の内壁には、可動接点を挟持して固定接点と可動接点を導通させる第２コイルスプリングが配置され、前記伝動機構は、伝動スクリューと、第１かさ歯車と、第２かさ歯車と、絶縁ロッドとからなり、前記伝動スクリューの両端にはいずれも前記可動接点の雌ネジ穴に対応する雄ネジ部が配置され、その中部はスムーズなロッド部であり、前記第１かさ歯車はスムーズなロッド部に同軸装着され、前記第２かさ歯車は前記絶縁ロッドの一端に同軸装着され、３つの中心導体は断面方向において「品」字状に前記第１エアセル内に配置され、前記伝動スクリューは、中心チャンネルを通して中心導体の内部へ入り込み、伝動スクリューにおける第１かさ歯車と前記サイドチャンネルとの位置関係が対応し、中心導体の両端のそれぞれに１つの可動接点が挿入され、前記伝動スクリューの雄ネジ部が可動接点の雌ネジ穴にねじ込まれ、前記絶縁ロッドの第２かさ歯車の配置された一端がサイドチャンネルへ入り込み、第１かさ歯車と第２かさ歯車とが噛み合い、前記絶縁ロッドの他端が前記駆動装置に接続され、筐体の内部の導通方向の両側に、それぞれの可動接点に対応して１つの固定接点が配置され、前記固定接点の接点穴が可動接点に面して配置され、前記駆動装置が伝動スクリューの回転を駆動して、両端が第１コイルスプリングによって挟持された可動接点を軸方向に往復運動させ、可動接点が中心導体から出た後、固定接点の接点穴に挿入され、両端の固定接点をオン／オフにすることができることを特徴とする請求項１に記載のＧＩＳ無停電母線増設用機能モジュール。   The double break switch device comprises a central conductor, a movable contact, a fixed contact, and a transmission mechanism, the central conductor is columnar, and a central channel in the axial direction is arranged at the axial center position thereof, Side channels connected to the center channel are disposed at the outer peripheral position of the center conductor, and first coil springs are disposed on the side walls at both ends of the center channel to sandwich the movable contact and make the center conductor and the movable contact conductive. The outer periphery of the movable contact and the center channel are fitted, a female screw hole is disposed at the axial center of one end of the movable contact, and the contact hole corresponding to the movable contact is disposed at the axial center of the fixed contact. Is disposed on the inner wall of the contact hole, and a second coil spring is disposed to sandwich the movable contact and electrically connect the fixed contact and the movable contact, and the transmission mechanism includes a transmission screw, It consists of a 1 bevel gear, a 2nd bevel gear, and an insulating rod, and both ends of the transmission screw are provided with male screw portions corresponding to the female screw holes of the movable contact, and the middle portion is a smooth rod portion The first bevel gear is coaxially mounted on the smooth rod portion, the second bevel gear is coaxially mounted on one end of the insulating rod, and the three central conductors are in the shape of a "product" in the cross-sectional direction. Arranged in one air cell, the transmission screw enters the inside of the central conductor through the central channel, and the positional relationship between the first bevel gear and the side channel in the transmission screw corresponds to each other, one at each end of the central conductor. A movable contact is inserted, a male screw portion of the transmission screw is screwed into a female screw hole of the movable contact, and one end where the second bevel gear of the insulating rod is disposed is The first bevel gear and the second bevel gear mesh with each other, the other end of the insulating rod is connected to the drive device, and corresponds to the respective movable contacts on both sides in the conduction direction inside the housing. One fixed contact is arranged, the contact hole of the fixed contact is arranged to face the movable contact, the driving device drives the rotation of the transmission screw, and both ends are clamped by the first coil spring. The fixed contact at both ends can be turned on / off by reciprocating the actuator in the axial direction and inserting the movable contact from the center conductor and then inserting it into the contact hole of the fixed contact. Functional module for expansion of GIS uninterruptible bus. さらに、前記中心導体を支持して筐体の内部に取り付けるために用いられる支持碍子を含むことを特徴とする請求項２に記載のＧＩＳ無停電母線増設用機能モジュール。   The functional module for adding a GIS uninterruptible bus according to claim 2, further comprising a support insulator used for supporting the central conductor and attaching it to the inside of the housing. 前記筐体の両端はボウル型碍子であり、前記固定接点がボウル型碍子に取り付けられていることを特徴とする請求項２に記載のＧＩＳ無停電母線増設用機能モジュール。   The GIS uninterruptible bus extension functional module according to claim 2, wherein both ends of the casing are bowl-type insulators, and the fixed contacts are attached to the bowl-type insulator. 前記臨時接地スイッチ装置では、筐体の内部に１つのレバー機構が配置され、手動でレバーの位置を設定することにより、前記中心導体と筐体を導通させて接地操作を行うことを特徴とする請求項２に記載のＧＩＳ無停電母線増設用機能モジュール。   In the temporary ground switch device, one lever mechanism is disposed inside the housing, and by manually setting the position of the lever, the center conductor and the housing are electrically connected to perform a grounding operation. A functional module for expanding a GIS uninterruptible bus according to claim 2. 前記絶縁ロッドの素材はエポキシ樹脂であることを特徴とする請求項２から５のいずれか１項に記載のＧＩＳ無停電母線増設用機能モジュール。   The functional module for adding a GIS uninterruptible bus according to any one of claims 2 to 5, wherein a material of the insulating rod is an epoxy resin. 順次に接続されるＧＩＳの第１期運転母線ポートと、請求項１から６のいずれか１項に記載のＧＩＳ無停電母線増設用機能モジュールと、第２エアセル及び第２エアセルに取り付けられた接地ナイフブレードと、第３エアセル及び第３エアセルに取り付けられたＧＩＳの第２期増設ポートとからなるＧＩＳ無停電母線の増設方法であって、具体的な方法とステップは以下のようであることを特徴とするＧＩＳ無停電母線の増設方法。
Ｓ１．母線が正常運転時に、第１エアセル、第２エアセル、第３エアセル内に定格圧力のガスが充填され、二重ブレークスイッチ装置が開極状態にあり、臨時接地スイッチ装置が開極状態にあり、接地ナイフブレードが閉極状態にある。
Ｓ２．増設接続時に、第１エアセルに定格圧力のガスを充填させ、第２エアセル内におけるガスを安全気圧まで低減させ、第３エアセル内におけるガスを回収し、ＧＩＳの第２期増設ポートに対してワイヤの接続を行い、接続終了後、接地ナイフブレードによって回路試験信号を採集する。
Ｓ３．増設後に耐電圧試験を行い、第２エアセル内に定格圧力のガスを充填させ、二重ブレークスイッチ装置が開極状態にあり、臨時接地スイッチ装置が閉極状態にあり、接地ナイフブレードが開極状態にあることを確保する。
Ｓ４．耐電圧試験終了後、二重ブレークスイッチ装置を閉極させ、臨時接地スイッチ装置が開極状態にあり、接地ナイフブレードが開極状態にあり、増設終了後、実用に用いる。 The GIS first operation bus port connected in sequence, the GIS uninterruptible bus extension functional module according to any one of claims 1 to 6, and the ground attached to the second air cell and the second air cell A method for adding a GIS uninterruptible bus consisting of a knife blade, a third air cell, and a second extension port of the GIS attached to the third air cell. The specific method and steps are as follows. How to add GIS uninterruptible bus.
S1. When the bus is in normal operation, the first air cell, the second air cell, and the third air cell are filled with the rated pressure gas, the double break switch device is in the open state, the temporary ground switch device is in the open state, Ground knife blade is closed.
S2. At the time of expansion connection, fill the first air cell with gas at the rated pressure, reduce the gas in the second air cell to a safe atmospheric pressure, collect the gas in the third air cell, and wire to the second expansion port of GIS After the connection is completed, a circuit test signal is collected by the ground knife blade.
S3. After the expansion, a withstand voltage test is performed, the gas at the rated pressure is filled in the second air cell, the double break switch device is open, the temporary ground switch device is closed, and the ground knife blade is open Ensure that it is in a state.
S4. After the withstand voltage test is completed, the double break switch device is closed, the temporary ground switch device is in the open state, and the ground knife blade is in the open state.
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