TW591835B - Gas insulated switch gear - Google Patents

Gas insulated switch gear Download PDF

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Publication number
TW591835B
TW591835B TW092106469A TW92106469A TW591835B TW 591835 B TW591835 B TW 591835B TW 092106469 A TW092106469 A TW 092106469A TW 92106469 A TW92106469 A TW 92106469A TW 591835 B TW591835 B TW 591835B
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TW
Taiwan
Prior art keywords
gas
insulating
insulated switchgear
patent application
circuit breaker
Prior art date
Application number
TW092106469A
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Chinese (zh)
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TW200406965A (en
Inventor
Masahiro Arioka
Original Assignee
Mitsubishi Electric Corp
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Publication of TW200406965A publication Critical patent/TW200406965A/en
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Publication of TW591835B publication Critical patent/TW591835B/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6661—Combination with other type of switch, e.g. for load break switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/027—Integrated apparatus for measuring current or voltage
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
    • H01H2009/526—Cooling of switch parts of the high voltage switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003—Earthing switches
    • 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
    • H02B13/0356—Mounting of monitoring devices, e.g. current transformers

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

This invention proposes a gas insulated switch gear which eliminates the variation of heat dissipation and cut-off performance between phases, improves the yield of manufacture, assures air tightness, standardizes the bushings, and improves production efficiency. A vacuum circuit breaker is supported by an insulating frame which is an insulating cylindrical member, and an opening passing through the insulating cylindrical member is provided at the vicinity of the movable portion of a vacuum bulb. The main circuit portion of a disconnector provided with a ground switch is disposed at either the upper portion or the lower portion of the insulating cylindrical member of each phase to maintain the same positional relation with the vacuum bulb. Three-phase insulating spacers are prepared individually for respective phases on a tank and are shifted in a longitudinal direction and in a lateral direction with respect to the center of the bushing of the second phase. A bushing at the lower part of the tank has a sufficient length for installing a current converter on the outer part of the tank.

Description

591835 五、發明說明（1) 【發明所屬之技術領域】 本發明是關於一種氣體絕緣開關裝置的構造。 【習知技術】591835 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to the structure of a gas-insulated switchgear. [Learning technology]

習知的氣體絕緣開關裝置是在底座上透過架台設有作 用槽。作用槽是形成將前面侧之下部切開的形狀，而在作 用槽的前面側形成有開口部，該開口部則是由安裝板所封 閉。作用槽的内側是形成氣遂狀恶’且填充有絕緣氣體。 在安裝板的内側安裝有由固體絕緣物所構成，且剖面大致 為u字形狀的絕緣框架的一端，在絕緣框架的内側則安裝 有真空斷路器（vacuum circuit breaker)以作為開閉器。 另外，在絕緣框架的上方設有 杰的斷接器（disconnecter)。 用來操作真空斷路器的操作部 閉裔的斷接器的操作部。 作為開閉器之附有接地開閉 而且，在安裝板的外側設有 ;以及用來操作附有接地開The conventional gas-insulated switchgear is provided with an operation slot through a stand on a base. The action groove has a shape in which a lower portion on the front side is cut, and an opening portion is formed on the front side of the action groove, and the opening portion is closed by a mounting plate. The inner side of the action groove is formed with a gas tunnel-like evil 'and filled with an insulating gas. One end of an insulating frame made of a solid insulator and having a substantially U-shaped cross section is mounted on the inside of the mounting plate, and a vacuum circuit breaker is mounted on the inside of the insulating frame as a shutter. In addition, a disconnector is provided above the insulating frame. Operating part for operating the vacuum circuit breaker. Operating part of the closed circuit breaker. It is equipped with a grounding switch as a shutter, and it is provided on the outside of the mounting plate; and it is used to operate the grounding switch.

=線是配設在作用槽的上方。在作用槽的上面形成有 1 口部，^設有將該開口部封閉成氣密狀態之作為絕緣構 物的:相絕緣間隔件。此三相絕緣間隔件是利用固體絕緣 盘將二相份量的内部導體加以塑膜。此内部導體的上端是 14母線相連接，下部是與附有接地開閉器的斷接器相連 、 在作用槽的下部設有將内部導體及變流器埋設在本身 為固體絕緣物之襯套的三相複合形襯套。此襯套是在作用 槽口部透過⑽環從内部安裝成為氣密狀態。在此襯 套從氣體絕緣開關裝置的前面側安裝有電纜頭。前述真空The = line is arranged above the action groove. An opening is formed on the upper surface of the action groove, and a phase insulating spacer is provided as an insulating structure that seals the opening to an airtight state. This three-phase insulating spacer is a plastic film of a two-phase inner conductor using a solid insulating disc. The upper end of this inner conductor is connected with 14 bus bars, and the lower part is connected with a disconnector with a grounding switch. The lower part of the action slot is provided with a bushing that embeds the inner conductor and the converter in itself as a solid insulator. Three-phase composite bushing. This bushing is installed from the inside through the grommet at the notch portion and becomes airtight. A cable head is attached to the bushing from the front side of the gas-insulated switchgear. The aforementioned vacuum

314531.ptd 第6頁 591835 五、發明說明（2) 斷路器及襯套的内部導體是藉由導體而連接，在電纜頭則 連接有電力電纜。（例如參照專利文獻1 ) 【專利文獻1】 日本特開平1 1 - 1 8 5 5 7 7號公報 【發明内容】 發明所欲解決之課題 習知的氣體絕緣開關裝置由於用來支撐真空斷路器的 絕緣框架的剖面為U字形狀，因此需要有增加端部之厚度 等的補強措施，而且有不易將於真空斷路器部所產生的熱 予以散熱的問題。 而且，由於是將附有接地開閉器的斷接器之各相主電 路部朝内側方向依序配置在斷路器附近，因此在各相隨著 故障電流通電而對於電磁場的真空開關間之斷路部的影響 各不相同，因此有真空斷路器的斷路性能依各相而有所不 同的問題。 而且，安裝在作用槽上面的三相絕緣間隔件由於形狀 複雜，因此製造上的良率差，且由於突緣面廣大，因此為 了維持氣密性能，在作用槽側也必須確保大範圍的平面 度，於是導致成本昂貴。 而且，設在作用槽下部的襯套由於埋設有變流器，因 此變得複雜且大型，且製造上的良率差，作業性也不佳。 而且，必須因應各個客戶所希望的變流器的規格，因此成 為阻礙襯套之標準化、生產效率的原因。 用以解決課題之手段314531.ptd Page 6 591835 V. Description of the invention (2) The internal conductors of circuit breakers and bushings are connected by conductors, and power cables are connected to the cable ends. (For example, refer to Patent Document 1) [Patent Document 1] Japanese Patent Application Laid-Open No. 1 1-1 8 5 5 7 7 [Summary of the Invention] A conventional gas-insulated switchgear which is a problem to be solved by the invention is used to support a vacuum circuit breaker. The insulating frame has a U-shaped cross-section, and therefore requires reinforcement measures such as increasing the thickness of the end portion, and has the problem that it is difficult to dissipate heat generated by the vacuum circuit breaker portion. In addition, since the main circuit sections of each phase of the circuit breaker with a grounding switch are arranged inwardly in the vicinity of the circuit breaker, the circuit breaker section between each phase and the vacuum switch for electromagnetic fields is energized with the fault current. The effects are different, so there is a problem that the interruption performance of the vacuum circuit breaker varies from phase to phase. In addition, the three-phase insulating spacer installed on the action groove has a complicated shape, so the manufacturing yield is poor, and the flange surface is wide. Therefore, in order to maintain airtight performance, a large range of plane must be ensured on the action groove side. Degrees, which leads to high costs. Furthermore, since the bushing provided in the lower part of the action groove is embedded with a converter, the bushing becomes complicated and large, and the manufacturing yield is poor, and the workability is not good. In addition, it is necessary to meet the specifications of the converters desired by each customer, and this is a cause that hinders the standardization and production efficiency of the bushings. Means to solve the problem

314531.ptd 第7頁 591835 五、發明說明（3) 為了解決上述課題，本發明之氣體絕緣開關裝置是具 有以下構件者：封入有絕緣性氣體的金屬容器；支撐於金 屬容器，且可與外部電路相連接的母線侧襯套；在金屬容 器内以一端支撐於容器壁上的絕緣框架；支撐於絕緣框 架，且具有與貫穿絕緣框架之一端而延伸的絕緣桿相連結 的可動側端子以及由絕緣筒體之另一端所支撐的固定側端 子的真空斷路器；具有設在絕緣框架之可轉動葉片，且連 接於母線側襯套與真空斷路器之間的斷路器；與真空斷路 器相連接而可與電力電纜相連接的電纜頭；以及用來測量 流到電纜頭之電流的變流器，其特徵為：絕緣框架是垂直 於軸方向之面的剖面形狀為環狀的筒狀體，且具有用來將 真空斷路器的可動側端子連接於斷接器的開口部。 而且，亦可具有貫穿絕緣筒體而將可動側端子連接於 葉片的可撓導體，亦可使包含母線側襯套及斷接器的主電 路導體位於包含真空斷路器之軸心的大致垂直的面内，亦 可使母線側襯套朝氣體絕緣開關裝置的内侧方向及寬度方 向於各相相互偏移，或是變流器與電纜頭為個別的零件亦314531.ptd Page 7 591835 V. Description of the invention (3) In order to solve the above problems, the gas-insulated switchgear of the present invention has the following components: a metal container sealed with an insulating gas; supported on the metal container, and can communicate with the outside Bus-side bushings connected to the circuit; an insulating frame supported on the container wall by one end in a metal container; a movable-side terminal supported by the insulating frame and connected to an insulating rod extending through one end of the insulating frame; Vacuum circuit breaker with fixed side terminals supported by the other end of the insulation cylinder; a circuit breaker with a rotatable blade provided in the insulation frame and connected between the bus-side bushing and the vacuum circuit breaker; connected to the vacuum circuit breaker A cable head that can be connected to a power cable; and a current transformer for measuring the current flowing to the cable head, characterized in that the insulating frame is a circular cylindrical body with a cross-sectional shape of a surface perpendicular to the axial direction, It also has an opening for connecting the movable-side terminal of the vacuum circuit breaker to the circuit breaker. In addition, it may have a flexible conductor that penetrates the insulation cylinder and connects the movable-side terminal to the blade, or the main circuit conductor including the bus-side bushing and the disconnector may be located at a substantially vertical axis including the axis of the vacuum circuit breaker. In the plane, the busbar side bushings can also be offset from each other in the direction of the inside and width of the gas-insulated switchgear, or the converter and the cable head are separate parts.

ItJ- 〇 【實施方式】 實施形態1. 如第1圖所示，在本發明之氣體絕緣開關裝置中，在 由薄板之板金所構成的架台2上設有作用槽3。作用槽3的 前面是形成被切開的形狀。作用槽3的前面形成有開口 部，且該開口部是由安裝板4所封閉，作用槽3的内部是形ItJ- 〇 [Embodiment] Embodiment 1. As shown in Fig. 1, in the gas-insulated switchgear of the present invention, an action groove 3 is provided on a stand 2 made of a thin sheet metal. The front surface of the action groove 3 is formed in a cut shape. An opening is formed in the front of the action groove 3, and the opening is closed by the mounting plate 4. The inside of the action groove 3 is shaped

314531.ptd 第8頁 591835 五、發明說明（4) 成氣密狀態，且填充有絕緣氣體。 在安裝板4的内側是將由固體絕緣物所構成的絕緣筒 1 8之一方側安裝成與斷路器6之主電路部分隔著5匪以上之 空隙，且在絕緣筒1 8的内側收容有：將真空開關室1 9及真 空開關室1 9之可動軸2 0與附有接地開閉器的斷接器用葉片 支撐端子2 1之間連接成不會妨礙可動轴2 0之動作的可撓導 體2 2等的斷路器主電路部；使真空開關室1 9之可動轴2 0與 斷路器用操作部8絕緣的絕緣桿2 3 ;以及用來連接絕緣桿 2 3與真空開關室1 9之可動軸2 0的轉接器2 4等機構零件。另 外，在絕緣筒1 8上設有附有接地開閉器的斷接器7。而 且，在安裝板4的外侧與以往一樣設有斷路器用操作部8以 及附有接地開閉器的斷接器用操作部9。 在絕緣筒1 8之安裝板4的相反側藉由固定端子2 6安裝 有真空閥的固定側端子2 5，其上部的絕緣筒1 8是朝上方突 出，且安裝有附有接地開閉器的斷接器之入側端子2 7，在 絕緣筒1 8之真空閥可動軸2 0上方則安裝有比前述突出部稍 微突出，且附有接地開閉器的斷接器之葉片支撐端子2 1。 另外，在小的突出部的安裝板4側設有貫穿絕緣筒1 8的開 口部2 8，真空閥的可動軸2 0是藉由貫穿此開口部2 8的可撓 導體2 2而連接於附有接地開閉器的斷接器之葉片支撐端子 21 ° 在安裝板4的絕緣筒1 8上方，於各相以與絕緣筒1 8相 同的間距形成有開口 ，且設有將該開口部封閉成氣密狀態 之作為絕緣構件的試驗用端子兼接地端子2 9。此試驗用端314531.ptd Page 8 591835 V. Description of the invention (4) It is airtight and filled with insulating gas. On the inside of the mounting plate 4, one side of the insulating cylinder 18 made of solid insulation is installed so as to be separated from the main circuit part of the circuit breaker 6 by a gap of more than 5 bands, and the inside of the insulating cylinder 18 contains: Connect the vacuum switch chamber 19 and the movable shaft 2 0 of the vacuum switch chamber 19 to the disconnector blade support terminal 2 1 with a grounding switch so that the flexible conductor 2 does not hinder the operation of the movable shaft 20. Class 2 circuit breaker main circuit section; insulating shaft 2 3 which insulates the vacuum switch chamber 19 from the operating section 8 of the circuit breaker; and insulating shaft 23 which connects the insulating rod 23 with the vacuum switch chamber 19 2 0 2 2 and other mechanism parts. In addition, a disconnector 7 with a grounding switch is provided on the insulating tube 18. Furthermore, a circuit breaker operation portion 8 and a circuit breaker operation portion 9 are provided on the outside of the mounting plate 4 as in the conventional case. On the opposite side of the mounting plate 4 of the insulating cylinder 18, a fixed-side terminal 2 5 of a vacuum valve is installed through a fixed terminal 2 6. The upper insulating cylinder 18 projects upward and is equipped with a grounding shutter. On the inlet-side terminal 27 of the disconnector, above the movable valve 20 of the vacuum valve 18 of the insulating cylinder 18, a blade-supporting terminal 21 of the disconnector, which is slightly more protruded than the above-mentioned protrusion, and has a grounding shutter, is installed. In addition, an opening portion 28 is formed on the mounting plate 4 side of the small protruding portion and penetrates the insulating tube 18. The movable shaft 20 of the vacuum valve is connected to the flexible conductor 22 through the opening portion 28. The blade support terminal of the disconnector with a grounding switch 21 ° is formed above the insulating tube 18 of the mounting plate 4 at each phase at the same pitch as the insulating tube 18, and is provided to close the opening The test terminal and ground terminal 29, which are in an airtight state, serve as an insulating member. End for this test

31453].ptd 第9頁 591835 五、發明說明（5) 子兼接地端子2 9是將内部導體2 9 a埋設於中心，且在以内 部導體2 9 a為中心的圓周上埋設有相對於作用槽的安裝用 金屬零件3 0，在安裝用金屬零件3 0的外側，則以内部導體 2 9 a為中心設有用來安裝相對於作用槽安裝成氣密狀態之 襯套的凹部3 1。在此内部導體2 9 a的作用槽内側端是連接 於附有接地開閉器的斷接器之接地側端子3 2，作用槽外側 端是連接於接地端子。在前述安裝板4之絕緣筒1 8上方的 開口部周圍，在具有與該開口部之中心為相同中心的圓周 上具有試驗用端子兼接地端子2 9安裝用的小孔，試驗用端 子兼接地端子2 9是從作用槽内側插入該開口部，並且從作 用槽外側將貫穿安裝用孔的螺栓3 3插入前述安裝用金屬零 件3 0而加以連結。 在作用槽3的上面，依各相在絕緣筒1 8的上方以與絕 緣筒1 8相同程度的間距，在比母線1 0之外徑尺寸稍大，且 朝前後方向偏移的位置形成有開口部，且設有將該開口部 封閉成氣密狀態之作為絕緣構件的母線用單相襯套3 4。此 單相襯套3 4是將内部導體3 4 a埋設於中心，並且在以内部 導體3 4 a為中心的圓周上埋設有相對於作用槽3的安裝用金 屬零件3 5，在安裝用金屬零件3 5的外側則是以内部導體 3 4a為中心設有用來安裝相對於作用槽安裝成氣密狀態之 襯套的凹部3 6。在此内部導體3 4 a的作用槽内側端是藉由 連接導體3 8連接於附有接地開閉器的斷接器之入側端子 2 7，作用槽外側端是連接於母線1 0。在前述作用槽上面的 開口部周圍，在具有與該開口部之中心為相同中心的圓周31453] .ptd Page 9 591835 V. Description of the invention (5) The sub and ground terminal 2 9 is embedded in the inner conductor 2 9 a in the center, and the relative action is embedded in the circumference centered on the inner conductor 2 9 a The groove mounting metal part 30 is provided on the outer side of the mounting metal part 30 with the inner conductor 2 9 a as a center, and a recess 31 for mounting a bushing which is airtight with respect to the action groove is provided. Here, the inner end of the working groove of the inner conductor 2 9 a is connected to the ground-side terminal 3 2 of the circuit breaker with a grounding switch, and the outer end of the working groove is connected to the ground terminal. Around the opening above the insulating tube 18 of the mounting plate 4, a test terminal and a ground terminal 29 are provided on a circumference having the same center as the center of the opening, and the test terminal and the ground are also grounded. The terminal 29 is inserted into the opening from the inside of the action groove, and the bolt 33, which penetrates the mounting hole, is inserted from the outside of the action groove to be connected to the metal fitting 30 for mounting. On the upper surface of the action groove 3, at the same distance as the insulating tube 18, the positions above the insulating tube 18 are formed at positions that are slightly larger than the outer diameter of the bus bar 10 and are offset in the front-back direction according to the phases. The opening is provided with a single-phase bushing 34 for a bus bar as an insulating member that seals the opening in an airtight state. In this single-phase bushing 34, an inner conductor 3 4a is buried in the center, and a metal part 35 for mounting with respect to the action groove 3 is embedded in a circumference centered on the inner conductor 3 4a. The outer part of the part 35 is provided with a recess 36 for centering the inner conductor 34a for mounting a bush which is installed in an airtight state with respect to the action groove. Here, the inner end of the working groove of the inner conductor 3 4 a is connected to the input terminal 2 7 of the circuit breaker with a grounding switch by a connecting conductor 38, and the outer end of the working groove is connected to the bus bar 10. The circumference of the opening above the action groove has a circumference having the same center as the center of the opening

314531.ptd 第10頁 591835 五、發明說明（6) 上具有單相襯套3 4安裝用的小孔，單相襯套3 4是從作用槽 内側插入該開口部，並且從作用槽外側將貫穿安裝用孔的 螺检3 7插入前述安裝金屬零件而加以連結。 在作用槽3的前面下部，依各相在絕緣筒1 8的下方以與 絕緣筒1 8相同程度的間距形成有開口部，且設有將該開口 部封閉成氣密狀態之作為絕緣構件的電纜連接用單相襯套 3 9。此單相襯套3 9是將内部導體3 9 a埋設於中心，並且在 以内部導體3 9 a為中心的圓周上埋設有相對於作用槽3的安 裝用金屬零件4 0，在安裝用金屬零件4 0的外側則以内部導 體3 9為中心設有用來安裝相對於作用槽安裝成氣密狀態之 襯套的凹部4 1。在此内部導體3 9的作用槽内側端是藉由連 接導體4 3連接於斷路器的固定端子2 6，作用槽外側端是藉 由電纜頭1 5連接於電力電纜1 7。在前述作用槽3之前面下 部的開口部周圍，在具有與該開口部之中心為相同中心的 圓周上具有單相襯套3 9安裝用的小孔，單相襯套3 9是從作 用槽内側插入該開口部，並且從作用槽外側將貫穿安裝用 孔的螺栓4 2插入前述安裝用金屬零件4 0而加以連結。 在此實施形態的氣體絕緣開關裝置中，用來支撐真空 斷路器的絕緣框架為筒狀體，且具有開口部，因此不需要 如習知般增加端部之厚度等的補強措施，且可有效率地進 行真空斷路器部所產生的熱之散熱。而且，包含母線側襯 套及斷接器的主電路導體是位於包含真空斷路器之軸心的 大致垂直的面内，因此各相真空斷路器的斷路性能會同 等。再者，母線側襯套是朝氣體絕緣開關裝置之内側方向314531.ptd Page 10 591835 V. Description of the invention (6) There is a small hole for single-phase bushing 3 4 for installation. The single-phase bushing 34 is inserted into the opening from the inside of the action groove, and The screw holes 37 passing through the mounting holes are inserted and connected by the aforementioned mounting metal parts. In the lower part of the front face of the action groove 3, openings are formed under the insulating cylinder 18 at the same intervals as the insulating cylinder 18 according to each phase, and an insulating member is provided to seal the opening in an airtight state. Single phase bushing for cable connection 3 9. In this single-phase bushing 39, the inner conductor 39a is buried in the center, and the mounting metal part 40 corresponding to the action groove 3 is embedded in the circumference centered on the inner conductor 39a, and the mounting metal is buried in the mounting metal. The outer side of the part 40 is provided with a recess 41 for mounting a bush which is installed in an airtight state with respect to the action groove, with the inner conductor 39 as a center. Here, the inner end of the action groove of the inner conductor 39 is connected to the fixed terminal 26 of the circuit breaker via the connection conductor 4 3, and the outer end of the action groove is connected to the power cable 17 by the cable head 15. The single-phase bushing 39 has a small hole for mounting the single-phase bushing 39 around the opening at the lower part of the front surface of the above-mentioned action groove 3 on the circumference having the same center as the center of the opening. This opening is inserted into the inside, and the bolts 42 penetrating through the mounting holes are inserted into the aforementioned mounting metal parts 40 from the outside of the action groove to be connected. In the gas-insulated switchgear of this embodiment, the insulating frame used to support the vacuum circuit breaker is a cylindrical body and has an opening portion. Therefore, reinforcement measures such as increasing the thickness of the end portion are not required as is conventional, and there may be Efficiently dissipates heat generated by the vacuum circuit breaker section. In addition, the main circuit conductor including the bus-side bushing and the disconnector is located in a substantially vertical plane including the axis of the vacuum circuit breaker, so the interruption performance of the vacuum circuit breakers of all phases is the same. Moreover, the bus-side bushing is directed toward the inside of the gas-insulated switchgear.

314531.ptd 第11頁 591835 五、發明說明（7) 及寬度方向於各相相互偏移，因此可簡單形成作用槽上面 所安裝的絕緣間隔件的形狀，且可容易維持製造上的良率 及氣密性能。再者，變流器4 4是與上述電纜頭1 5為個別的 零件，因此製造上的良率佳，作業性亦佳，且可容易地因 應各個客戶所希望的變流器的規格。 實施形態2. 接著根據第2圖來說明實施形態2。將第2圖與第1圖加 以比較即可得知，本實施形態並沒有絕緣筒内部的斷路 器，而是藉由短路導體4 5且未透過開閉器來連接附有接地 開閉器的斷接器之葉片支撐端子2 1與固定端子2 6。 實施形態3. 接著根據第3圖來說明實施形態3。將第3圖與第2圖加 以比較即可得知，絕緣筒1 8及附有接地開閉器的斷接器7 的位置並沒有改變相互的位置關係而是上下反轉，斷路器 的固定端子2 6是藉由連接導體4 6而連接於作用槽上面的單 相襯套3 4，附有接地開閉器的斷接器之入側端子2 7是藉由 連接導體4 7而連接於作用槽前面下部的單相襯套3 9。而 且，在作用槽前面下部的單相襯套3 9是連接有計器用變壓 器4 8而非連接電力電纜1 7的狀態，但電力電纜、避雷器等 亦可以同樣的構造來連接。 實施形態4. 接下來根據第4圖來說明實施形態4。將第4圖與第1圖 加以比較即可得知，作用槽下部的單相襯套3 9是安裝於背 面側，電力電纜1 7是從氣體絕緣開關装置的背面側連接於314531.ptd Page 11 591835 V. Description of the invention (7) and the width direction are offset from each other, so the shape of the insulating spacer installed on the action groove can be simply formed, and the manufacturing yield and Airtight performance. In addition, since the converter 44 is a separate component from the cable head 15 described above, the manufacturing yield is good, the workability is also good, and it is possible to easily meet the specifications of the converter desired by each customer. Embodiment 2. Next, Embodiment 2 is demonstrated based on FIG. Comparing Figure 2 with Figure 1, you can see that this embodiment does not have a circuit breaker inside the insulation cylinder. Instead, the short circuit conductor 45 is connected to the disconnection with the grounding switch without passing through the switch. The blade supports the terminal 21 and the fixed terminal 26. Embodiment 3. Next, Embodiment 3 is demonstrated based on FIG. Comparing Figure 3 with Figure 2, you can see that the positions of the insulation tube 18 and the disconnector 7 with a grounding switch do not change their positional relationship but reverse up and down. The fixed terminals of the circuit breaker 2 6 is a single-phase bushing 3 4 connected to the upper surface of the action groove by the connecting conductor 4 6, and the input terminal 2 of the circuit breaker with a grounding switch is connected to the action groove by the connecting conductor 4 7 Front single-phase bushings 3 9. In addition, the single-phase bushing 39 at the lower part of the front face of the action tank is connected to the transformer transformer 48 instead of the power cable 17, but the power cable, lightning arrester, etc. can be connected with the same structure. Embodiment 4. Next, Embodiment 4 is demonstrated based on FIG. Comparing Fig. 4 with Fig. 1, it can be seen that the single-phase bushing 39 at the lower part of the action tank is installed on the back side, and the power cable 17 is connected from the back side of the gas-insulated switchgear.

314531.ptd 第12頁 591835 五、發明說明（8) 單相襯套3 9。圖中是從氣體絕緣開關裝置上方拉入電力電 纜1 7，但從下方拉入電力電纜1 7時亦可連接。 如以上所說明，根據本發明之氣體絕緣開關裝置，藉 由將用來收容斷路器之主電路部分的絕緣物形成圓形或橢 圓形，可分散絕緣物内的應力，且可實現絕緣物的薄壁 化。而且，藉由將突出部設在絕緣物，則不需要用以安裝 附有接地開閉器的斷接器之各端子所需的其他金屬零件， 而可縮短組裝時間，而且，藉由將貫穿孔設在絕緣筒的一 部分，可容易將絕緣筒内所產生的熱散熱至絕緣筒外，即 使是同一導體尺寸也可流通大電流。 【發明之效果】 根據本發明之氣體絕緣開關裝置，由於絕緣框架是垂 直於軸方向之面的剖面形狀為環狀的筒狀體，且具有用來 將真空斷路器的可動側端子連接於斷接器的開口部，因此 可分散絕緣框架内的應力，且可實現絕緣框架的薄壁化， 亦可將附有接地開閉器的斷接器安裝於絕緣框架，而且藉 由將貫穿孔設在絕緣框架的一部分，可容易地將絕緣框架 内所產生的熱散熱至外部，即使是同一導體尺寸也可流通 大電流。314531.ptd Page 12 591835 V. Description of the invention (8) Single-phase bushing 39. In the figure, the power cable 17 is pulled in from above the gas-insulated switchgear, but it can also be connected when the power cable 17 is pulled in from below. As explained above, according to the gas-insulated switchgear of the present invention, by forming a circular or oval shape of the insulator used to accommodate the main circuit part of the circuit breaker, the stress in the insulator can be dispersed, and the insulation can be realized. Thin wall. In addition, by providing the protrusions on the insulator, other metal parts required for mounting the terminals of the disconnector with a grounding switch are not required, and the assembly time can be shortened. Furthermore, by providing the through-holes Provided in a part of the insulation tube, the heat generated in the insulation tube can be easily dissipated to the outside of the insulation tube, and a large current can flow even with the same conductor size. [Effects of the Invention] According to the gas-insulated switchgear of the present invention, the insulating frame is a cylindrical body having a cross-sectional shape of a surface perpendicular to the axial direction, and has a movable-side terminal for connecting the vacuum circuit breaker to the circuit breaker. The opening of the connector can disperse the stress in the insulating frame and reduce the thickness of the insulating frame. It is also possible to install a disconnector with a grounding switch on the insulating frame. A part of the insulating frame can easily dissipate heat generated in the insulating frame to the outside, and a large current can flow even with the same conductor size.

314531.ptd 第13頁 591835 圖式簡單說明 【圖式簡單說明】 第1圖是本發明之氣體絕緣開關裝置之第1實施形態的 側剖視圖。 第2圖是本發明之氣體絕緣開關裝置之第2實施形態的 側剖視圖。 第3圖是本發明之氣體絕緣開關裝置之第3實施形態的 侧剖視圖。 第4圖是本發明之氣體絕緣開關裝置之第4實施形態的 側剖視圖。 【符號之說明】 2 架台 3 金屬容器（作用槽） 4 安裝板 6 斷路器（circuit breaker) 7 附有接地開閉器的斷接器（disconnecter) 8 遮斷 器 用 操 作部 9 斷 路 器 用 操 作 部 10 母線 15 電 纜 頭 17 電力 電 纜 18 絕 緣 筒 19 真空 斷 路 器 (真空 開關室） 20 可動 軸 21 斷 路 器 用 葉 片 支撐端子 22 可撓 導 體 23 絕 緣 桿 24 轉接 器 25 固 定 側 端 子 26 固定 端 子 28 開 V 部 29a 、3 4a、 3 9a 内部 導體 30 > 35 > 40 安 裝用金屬零件314531.ptd Page 13 591835 Brief description of the drawings [Simplified description of the drawings] Fig. 1 is a side sectional view of the first embodiment of the gas-insulated switchgear of the present invention. Fig. 2 is a side sectional view of a second embodiment of a gas-insulated switchgear according to the present invention. Fig. 3 is a side sectional view of a third embodiment of the gas-insulated switchgear of the present invention. Fig. 4 is a side sectional view of a fourth embodiment of the gas-insulated switchgear according to the present invention. [Description of symbols] 2 Shelf 3 Metal container (action slot) 4 Mounting plate 6 Circuit breaker 7 Disconnector with grounding switch 8 Operation unit for circuit breaker 9 Operation unit for circuit breaker 10 Bus 15 Cable head 17 Power cable 18 Insulation tube 19 Vacuum circuit breaker (vacuum switch room) 20 Movable shaft 21 Blade support terminal for circuit breaker 22 Flexible conductor 23 Insulation rod 24 Adapter 25 Fixed side terminal 26 Fixed terminal 28 Open V section 29a , 3 4a, 3 9a Internal conductor 30 > 35 > 40 Metal parts for mounting

31453].ptd 第14頁 59183531453] .ptd p. 14 591835

314531.ptd 第15頁314531.ptd Page 15

Claims (1)

591835 六、申請專利範圍 1. 一種氣體絕緣開關裝置，是具有以下構件者： 封入有絕緣性氣體的金屬容器； 支撐於上述金屬容器，且可與外部電路相連接的 母線側襯套； 在上述金屬容器内以一端支撐於容器壁上的絕緣 框架； 支撐於上述絕緣框架，且具有與貫穿上述絕緣框 架之上述一端而延伸的絕緣桿相連結的可動側端子以 及由上述絕緣筒體之另一端所支撐的固定側端子的真 空斷路器； 具有設在上述絕緣框架之可轉動葉片，且連接於 上述母線側襯套與上述真空斷路器之間的斷接器； 與上述真空斷路器相連接而可與電力電纜相連接 的電纜頭；以及 用來測量流到上述電纜頭之電流的變流器； 其特徵為：上述絕緣框架是筒狀體，且具有用來 將上述真空斷路器的可動側端子連接於上述斷接器的 開口部。 2. 如申請專利範圍第1項之氣體絕緣開關裝置，其中，又 具有貫穿上述絕緣筒體而將上述可動側端子連接於上 述葉片的可撓導體。 3. 如申請專利範圍第1項之氣體絕緣開關裝置，其中，包 含上述母線側襯套及上述斷路器的主電路導體是位於 包含上述真空斷路器之軸心的大致垂直的面内。591835 6. Scope of patent application 1. A gas-insulated switchgear having the following components: a metal container sealed with an insulating gas; a bus-side bushing supported on the metal container and capable of connecting to an external circuit; In the metal container, one end is supported by an insulating frame on the container wall; the insulating frame is supported by the insulating frame and has a movable-side terminal connected with an insulating rod extending through the one end of the insulating frame; and the other end of the insulating cylinder A vacuum circuit breaker supported by a fixed-side terminal; a disconnector provided with a rotatable blade disposed on the insulation frame and connected between the bus-side bushing and the vacuum circuit breaker; connected to the vacuum circuit breaker and A cable head capable of being connected to a power cable; and a current transformer for measuring a current flowing to the cable head; characterized in that the insulating frame is a cylindrical body and has a movable side for connecting the vacuum circuit breaker; The terminal is connected to the opening of the circuit breaker. 2. The gas-insulated switchgear according to item 1 of the patent application scope, further comprising a flexible conductor that penetrates the insulating cylinder and connects the movable-side terminal to the blade. 3. The gas-insulated switchgear according to item 1 of the scope of patent application, wherein the main circuit conductor including the bus-side bushing and the circuit breaker is located in a substantially vertical plane including the axis of the vacuum circuit breaker. 314531.ptd 第16頁 591835 六、申請專利範圍 4. 如申請專利範圍第1項之氣體絕緣開關裝置，其中，上 述母線侧襯套是朝上述氣體絕緣開關裝置的内侧方向 及寬度方向於各相相互偏移。 5. 如申請專利範圍第1項之氣體絕緣開關裝置，其中，上 述變流器與上述電纜頭為個別的零件。 6. 如申請專利範圍第1項之氣體絕緣開關裝置，其中，又 具有貫穿上述絕緣筒體而將上述可動側端子連接於上 述葉片的可撓導體，且包含上述母線側襯套及上述斷 接器的主電路導體是位於包含上述真空斷路器之軸心 的大致垂直的面内。 7. 如申請專利範圍第1項之氣體絕緣開關裝置，其中，又 具有貫穿上述絕緣筒體而將上述可動側端子連接於上 述葉片的可撓導體，且上述母線側襯套是朝上述氣體 絕緣開關裝置的内側方向及寬度方向於各相相互偏 移。 8. 如申請專利範圍第1項之氣體絕緣開關裝置，其中，又 具有貫穿上述絕緣筒體而將上述可動側端子連接於上 述葉片的可撓導體，且上述變流器與上述電纜頭為個 別的零件。 9. 如申請專利範圍第1項之氣體絕緣開關裝置，其中，包 含上述母線側襯套及上述斷接器的主電路導體是位於 包含上述真空斷路器之轴心的大致垂直的面内，且上 述變流器與上述電纜頭為個別的零件。 1 0 .如申請專利範圍第1項之氣體絕緣開關裝置，其中，又314531.ptd Page 16 591835 6. Scope of patent application 4. For the gas-insulated switchgear of item 1 of the scope of patent application, the above-mentioned bus-side bushing is oriented in the direction of the inside and width of the gas-insulated switchgear in each phase. Offset each other. 5. The gas-insulated switchgear according to item 1 of the scope of patent application, wherein the converter and the cable head are separate parts. 6. The gas-insulated switchgear according to item 1 of the scope of patent application, which further comprises a flexible conductor that penetrates the insulating cylinder and connects the movable-side terminal to the blade, and includes the bus-bar-side bushing and the disconnection The main circuit conductor of the device is located in a substantially vertical plane including the axis of the vacuum circuit breaker. 7. The gas-insulated switchgear according to item 1 of the scope of patent application, further comprising a flexible conductor that penetrates the insulating cylinder and connects the movable-side terminal to the blade, and the bus-side bushing is directed toward the gas insulation. The inside direction and width direction of the switching device are offset from each other. 8. The gas-insulated switchgear according to item 1 of the scope of patent application, further comprising a flexible conductor that penetrates the insulating cylinder and connects the movable-side terminal to the blade, and the converter and the cable head are separate Parts. 9. The gas-insulated switchgear according to item 1 of the scope of patent application, wherein the main circuit conductor including the bus-side bushing and the disconnector is located in a substantially vertical plane including the axis of the vacuum circuit breaker, and The converter and the cable head are separate parts. 10. The gas-insulated switchgear of item 1 in the scope of patent application, wherein 314531.ptd 第17頁 591835 六、申請專利範圍 具有貫穿上述絕緣筒體而將上述可動側端子連接於上 述葉片的可撓導體，而包含上述母線側襯套及上述斷 接器的主電路導體是位於包含上述真空斷路器之轴心 的大致垂直的面内，且上述變流器與上述電纜頭為個 別的零件。 1 1.如申請專利範圍第1項之氣體絕緣開關裝置，其中，上 述母線側襯套是朝上述氣體絕緣開關裝置的内側方向 及寬度方向於各相相互偏移，且上述變流器與上述電 纜頭為個別的零件。 1 2 .如申請專利範圍第1項之氣體絕緣開關裝置，其中，又 具有貫穿上述絕緣筒體而將上述可動側端子連接於上 述葉片的可撓導體，上述母線側襯套是朝上述氣體絕 緣開關裝置的内側方向及寬度方向於各相相互偏移， 且上述變流器與上述電纜頭為個別的零件。 1 3. —種氣體絕緣開關裝置，是具有以下構件者： 封入有絕緣性氣體的金屬容器； 支撐於上述金屬容器，且可與外部電路相連接的 母線側襯套； 在上述金屬容器内以一端支撐於容器壁上的絕緣 框架； 支撐於上述絕緣框架，且具有與貫穿上述絕緣框 架之上述一端而延伸的絕緣桿相連結的可動側端子以 及由上述絕緣筒體之另一端所支撐的固定側端子的真 空斷路器；314531.ptd Page 17 591835 6. The scope of the patent application has a flexible conductor that penetrates the insulating cylinder and connects the movable-side terminal to the blade, and the main circuit conductor including the bus-side bushing and the disconnector is It is located in a substantially vertical plane including the axis of the vacuum circuit breaker, and the converter and the cable head are separate parts. 1 1. The gas-insulated switchgear according to item 1 of the scope of the patent application, wherein the bus-side bushing is offset from each other in phases toward the inner direction and width direction of the gas-insulated switchgear, and the converter and the The cable head is a separate part. 1 2. The gas-insulated switchgear according to item 1 of the scope of patent application, further comprising a flexible conductor that penetrates the insulating cylinder and connects the movable-side terminal to the blade, and the bus-side bushing is directed toward the gas insulation. The inside direction and the width direction of the switching device are offset from each other, and the current transformer and the cable head are separate parts. 1 3. A gas-insulated switchgear having the following components: a metal container sealed with an insulating gas; a bus-side bushing supported on the metal container and connectable to an external circuit; An insulating frame supported at one end on a container wall; a movable side terminal supported by the insulating frame and connected to an insulating rod extending through the one end of the insulating frame; and a fixed support supported by the other end of the insulating cylinder Vacuum circuit breaker on the side terminal; 314531.ptd 第18頁 591835 六、申請專利範圍 具有設在上述絕緣框架之可轉動葉片，且連接於 上述母線側襯套與上述真空斷路器之間的斷接器； 與上述真空斷路器相連接而可與電力電纜相連接 的電纜頭；以及 用來測量流到上述電纜頭之電流的變流器， 其特徵為：包含上述母線側襯套及上述斷接器的 主電路導體是位於包含上述真空斷路器之軸心的大致 垂直的面内。 1 4 .如申請專利範圍第1 3項之氣體絕緣開關裝置，其中， 又具有貫穿上述絕緣筒體而將上述可動側端子連接於 上述葉片的可撓導體。 1 5 .如申請專利範圍第1 3項之氣體絕緣開關裝置，其中， 上述變流器與上述電纜頭為個別的零件。 1 6 .如申請專利範圍第1 3項之氣體絕緣開關裝置，其中， 又具有貫穿上述絕緣筒體而將上述可動側端子連接於 上述葉片的可撓導體，且上述變流器與上述電纜頭為 個別的零件。 1 7. —種氣體絕緣開關裝置，是具有以下構件者·· 封入有絕緣性氣體的金屬容器； 支撐於上述金屬容器，且可與外部電路相連接的 母線側襯套； 在上述金屬容器内以一端支撐於容器壁上的絕緣 框架； 支撐於上述絕緣框架，且具有與貫穿上述絕緣框314531.ptd Page 18 591835 6. The scope of the patent application has a disconnector provided in the above-mentioned insulating frame and connected between the above-mentioned bus-side bushing and the above-mentioned vacuum circuit breaker; connected with the above-mentioned vacuum circuit breaker A cable head that can be connected to a power cable; and a current transformer for measuring the current flowing to the cable head, which is characterized in that the main circuit conductor including the bus-side bushing and the disconnector is located including the above In the substantially vertical plane of the axis of the vacuum circuit breaker. 14. The gas-insulated switchgear according to item 13 of the scope of patent application, further comprising a flexible conductor that penetrates the insulating cylinder and connects the movable-side terminal to the blade. 15. The gas-insulated switchgear according to item 13 of the scope of patent application, wherein the current transformer and the cable head are separate parts. 16. The gas-insulated switchgear according to item 13 of the scope of patent application, further comprising a flexible conductor that penetrates the insulating cylinder and connects the movable-side terminal to the blade, and the converter and the cable head For individual parts. 1 7. A gas-insulated switchgear, which has the following components: a metal container sealed with an insulating gas; a bus-side bushing that is supported on the metal container and can be connected to an external circuit; in the metal container An insulation frame supported on the container wall by one end; supported on the insulation frame, and having an insulation frame extending through the insulation frame 314531.ptd 第19頁 591835 六、申請專利範圍 以真 子的 端子 側端 動側 可定 的固 結的 連撐 相支 桿所 緣端 絕一 的另 伸之 延體 而筒 端緣 一 絕 述述 上上 之由 架及 片 葉 轉 可 之 架 框 緣 絕 述 上 在 •，設 器有 路具 斷 空 於 接 -^一) il 且 接 ; 連 器相 接纜 斷電 的力 間電 之與 器可 路而 斷接 空連 真相 述器 上路 與斷 套空 概真 側述 線上 母與 述 上 器 流 變 的 流 電 之 頭 纜 電 述 上 $· 及流 以量 •，測 頭來 纜用 電 的 開 緣 絕。 體移 氣偏 述互 上相 朝相 是各 套於 襯向 側方 線度 母寬 述及 上向 中 其 置 裝 關 m^ 緣 絕 體 氣 之 r Η 第 : 方圍 為側範 徵内利 特的專 其置請 裝申 a幺 〇! 口 I 女 於 接 il 子 端 側 可 述 上 將 而 體 筒。 緣體 絕導 述撓 上可 穿的 貫片 有葉 具述 又上 氣 之 IX 第 圍 範 利 ，於為 中接頭 其連纜 ，子電 置端述 裝側上 關動與 開可器 緣述流 絕上變 體將述 而上 體且 筒， 緣體 絕導 述撓 上可 穿的 專貫片 請有葉 申具述 如又上 中 其 置 裝 關 開 緣 絕 體 氣為 之頭 項纜 1 電 第述 圍上 。範與 件利器 零專流 的請變 別申述 個如上 件 零 的 別 個314531.ptd Page 19 591835 6. The scope of the patent application is based on the extended extension of the edge of the fixed concatenated phase support rod that can be fixed on the movable side of the terminal of the true child and the end of the tube is absolutely described. The frame edge of the frame that can be turned from the frame and the leaf leaves is absolutely unclear. • The device has a path to disconnect the connection-^ a) il and connect; the connector is connected to the cable and the power between the power and the device It can be disconnected and connected to the empty truth narrator on the road and broken sleeves. The profile of the current on the line of the mother and the rheological rheological head cable is described above. The current is measured by the probe. The beginning of the event is absolutely impossible. The body-moving air partial description of each other is opposite to each other. Each side is set on the side of the line, and the side is placed on the upper side. Its position is m. Special installation please install a 装 〇! Mouth I female can be described as a general and body. Marginal body introduction Introduction to the penetrable penetrating blade with leaves and imaginary IX Fan Fanli, which is the middle connector of its cable, the sub-set terminal is installed on the side and the opening and closing device is described. The upper body variant will be described as the upper body and the tube. The edge body body will be described as a special piece that can be worn on the top. 1 Dian Shuo surrounds. Fans and pieces of tools, please do not have a special stream, please don't make a statement. n_TLV4rr)l»n Jrv 314531.ptd 第20頁n_TLV4rr) l »n Jrv 314531.ptd Page 20
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