JPH087764Y2 - Gas insulated switch - Google Patents
Gas insulated switchInfo
- Publication number
- JPH087764Y2 JPH087764Y2 JP1988026010U JP2601088U JPH087764Y2 JP H087764 Y2 JPH087764 Y2 JP H087764Y2 JP 1988026010 U JP1988026010 U JP 1988026010U JP 2601088 U JP2601088 U JP 2601088U JP H087764 Y2 JPH087764 Y2 JP H087764Y2
- Authority
- JP
- Japan
- Prior art keywords
- disconnector
- switch
- gas
- insulating
- movable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Gas-Insulated Switchgears (AREA)
Description
【考案の詳細な説明】 〔考案の目的〕 （産業上の利用分野） 本考案は断路器と接地開閉器とを同一金属タンク内に
収納したガス絶縁開閉器に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Use) The present invention relates to a gas-insulated switch in which a disconnecting switch and a grounding switch are housed in the same metal tank.
（従来の技術） 近年、用地難あるいは高音公害等を解消する手段の一
つとして、変電所あるいは開閉器に広くガス絶縁開閉器
が適用されてから約20年が経過した。ガス絶縁開閉器は
高圧導体部を金属容器内に収納し、絶縁性能の優れたSF
6ガスを３〜6kg/cm2に充填することにより、大幅な縮小
化を計ったものである。高圧導体は必要箇所からエポキ
シ樹脂製の絶縁スペーサあるいは絶縁筒によって支持さ
れるが、ガス絶縁開閉器全体の事故波及範囲の限定ある
いは据付時の機器の品質確保等の理由から、運用面も考
慮してガス区分される。従って、いわゆる絶縁スペーサ
は導体を支持するとともにガス区分の役目も有してい
る。(Prior Art) In recent years, about 20 years have passed since the gas-insulated switches have been widely applied to substations and switches as one of means for solving site troubles or high-frequency pollution. The gas-insulated switch has a high-voltage conductor part housed in a metal container, and is a SF with excellent insulation performance.
By filling 6 gas to 3 to 6 kg / cm 2 , the size was greatly reduced. The high-voltage conductor is supported from the required place by an insulating spacer or insulating cylinder made of epoxy resin, but due to reasons such as limiting the scope of accidents for the entire gas-insulated switch and ensuring the quality of the equipment during installation, consider the operational aspects as well. Are classified as gas. Therefore, the so-called insulating spacer not only supports the conductor but also serves as a gas section.
ところで、ガス絶縁開閉器は極端に縮小化したため、
導体とタンク間の寸法が極めて少い。これはガス絶縁開
閉器内が清浄状態であれば、充分所要の絶縁性能を有す
るのであるが、ガス絶縁開閉器内に金属粉塵等が、特に
絶縁スペーサ上に残留していると、わずかな量でも絶縁
性能の大幅な低下が生じることが各種研究でも発表され
知られている。By the way, since the gas-insulated switch has become extremely small,
Very small dimensions between conductor and tank. This is because if the inside of the gas-insulated switch is in a clean state, it has sufficient insulation performance, but if metal dust, etc. remains inside the gas-insulated switch, especially if it remains on the insulating spacers, a small amount will remain. However, it has been known in various studies that a large decrease in insulation performance occurs.
従来の複合形ガス絶縁開閉器の一例を第３図に示す。
また、この場合の単線結線図を第４図に示す。第３図に
示すようにガス絶縁開閉器の左側口出し部に断路器DS、
接地開閉器ES1，ES2が同一タンク内に収納されて全体の
縮小化を計るとともに、口出ブッシングBgの高さが極力
高くならないように配慮されている。An example of a conventional composite gas insulated switch is shown in FIG.
A single line connection diagram in this case is shown in FIG. As shown in Fig. 3, the disconnector DS,
The grounding switches ES 1 and ES 2 are housed in the same tank to reduce the overall size, and the height of the output bushing Bg is kept as high as possible.
断路器、接地開閉器部の詳細構造を第５図に示す。金
属タンク１内に断路器の固定側接触部２及び可動側接触
部３がそれぞれ絶縁スペーサ13,14に支持されて設けて
あり、両接触部間を開閉動作する可動接触子４がある。
この可動接触子４内にはピニオン・ラック機構５が組込
まれ、金属タンク側からエポキシ樹脂製の絶縁操作棒６
を回転駆動することにより可動接触子４を開閉操作する
ことができるように組込まれている。絶縁操作棒６の他
端はシールボックス７を介して主軸を金属タンク外に導
出し、外部に設けた操作装置に連結される。Fig. 5 shows the detailed structure of the disconnecting switch and the ground switch. A fixed side contact part 2 and a movable side contact part 3 of a disconnector are provided in a metal tank 1 supported by insulating spacers 13 and 14, respectively, and a movable contactor 4 which opens and closes between both contact parts is provided.
A pinion rack mechanism 5 is incorporated in the movable contactor 4, and an insulating operating rod 6 made of epoxy resin is installed from the metal tank side.
It is incorporated so that the movable contactor 4 can be opened and closed by rotationally driving. The other end of the insulating operation rod 6 has its main shaft led out of the metal tank via a seal box 7 and connected to an operation device provided outside.
断路器の固定側接触部２には接地開閉器ES1の固定側
接触部８を設け、これと対向する位置に可動接触子16を
駆動する開閉機構９がタンク１に取付けてある。一方、
断路器の可動側接触部３には接地開閉器ES2の固定側接
触部10を設け、これと対向する位置に接地開閉器ES1と
同様に可動接触子11、開閉機構12をタンク１に取付けて
ある。The fixed side contact part 2 of the disconnector is provided with the fixed side contact part 8 of the grounding switch ES 1 , and an opening / closing mechanism 9 for driving the movable contact 16 is attached to the tank 1 at a position facing the fixed side contact part 8. on the other hand,
The movable side contact part 3 of the disconnector is provided with the fixed side contact part 10 of the earthing switch ES 2 , and the movable contact 11 and the opening / closing mechanism 12 are provided on the tank 1 at a position opposite to this, similarly to the earthing switch ES 1. It is installed.
接地開閉器ES1，ES2は断路器DSの両側に配置されてい
るが、その役目は異り、接地開閉器ES2は通常ガスしゃ
断機GCBの点検等の際に接地するもので、作業用であ
る。また、接地開閉器ES1は口出ブッシングBgの先に接
続される架空送電線を接地する際に操作され、一般に線
路用接地開閉器と呼ばれる。日本では架空送電線として
は、通常２回線併架が操作され、２変電所を２回線の送
電線で連系し、碍子の清掃等のため１回線を停止しても
残りの１回線にて電力を支障なく送れるよう配慮されて
いる。The earthing switches ES 1 and ES 2 are arranged on both sides of the disconnecting switch DS, but their function is different, and the earthing switch ES 2 is normally grounded when checking the gas breaker GCB. It is for. The grounding switch ES 1 is operated when grounding an overhead power transmission line connected to the end of the outlet bushing Bg, and is generally called a line grounding switch. In Japan, two overhead lines are normally operated as an overhead transmission line, and two substations are interconnected by two transmission lines. Even if one line is stopped for cleaning insulators, the remaining one line is used. Consideration is given so that electric power can be sent without any trouble.
この様な２回線併架の場合、一方の回線を停止して接
地開閉器ES1を投入すると、他回線には定格電流に相当
する負荷電流が流れるため、この電流による電磁誘導に
より、約12％の誘導電流が接地開閉器ES1に流れる。従
って、この接地開閉器を開路する場合には、健全相回線
に流れる負荷電流の約12％、通常400A〜1500Aの電流を
しゃ断することになる。In the case of such a two-line combination, if one line is stopped and the earthing switch ES 1 is turned on, a load current equivalent to the rated current will flow in the other line. % Induced current flows through the earthing switch ES 1 . Therefore, when this grounding switch is opened, about 12% of the load current flowing in the healthy phase line, which is normally 400A to 1500A, is cut off.
（考案が解決しようとする課題） 一般に線路用接地開閉器ES1については、上述の使用
条件を考慮して所要のしゃ断性能を有するよう配慮さ
れ、かつ検証された機器が適用されるが、電流しゃ断時
には、極間にアークが発生してしゃ断粉塵が下方に落下
することになる。第５図に示すように、従来の断路器、
接地開閉器のような配置にすると、電流しゃ断時に発生
する粉塵15が下方に落下し、下側の絶縁スペーサ14上に
堆積して絶縁スペーサ14の当初の絶縁性能をおびやかす
恐れがある。(Problems to be solved by the device) In general, for the earthing switch for line ES 1 , a device that has been considered and verified to have the required breaking performance in consideration of the above-mentioned usage conditions is applied, but At the time of interruption, an arc is generated between the poles and the interruption dust falls downward. As shown in FIG. 5, a conventional disconnector,
If it is arranged like a grounding switch, dust 15 generated at the time of current interruption may fall downward and be deposited on the lower insulating spacer 14 to impair the initial insulating performance of the insulating spacer 14.
また、断路器の絶縁操作棒６についても同様で、第５
図に示すように、操作性あるいは点検性を優先的に考
え、接地開閉器ES1と断路器DSの大気側への導出方向を
同一方向にすると線路用接地開閉器ES1の開閉接点の直
下に絶縁操作棒６が配置されることになり、接地開閉器
ES1のしゃ断粉塵15がこの上に落下して絶縁性能の低下
をきたす恐れがある。The same applies to the insulation operating rod 6 of the disconnector,
As shown in the figure, if priority is given to operability or checkability, and if the direction of the earthing switch ES 1 and the disconnecting switch DS to the atmosphere side is the same direction, it is directly under the switching contact of the earthing switch for line ES 1. Insulation operating rod 6 will be installed on the ground switch
The blocking dust 15 of the ES 1 may fall on top of this and cause deterioration of the insulation performance.
本案の目的は、接地開閉器が誘導電流をしゃ断する際
に発生するしゃ断粉塵が絶縁物上に堆積しないように、
絶縁物の配置を変更し、実使用に当って機器の絶縁性能
として初期の性能が確保されるようにしたガス絶縁開閉
器を提供することにある。The purpose of this plan is to prevent the blocking dust generated when the grounding switch blocks the induced current from accumulating on the insulator.
An object of the present invention is to provide a gas-insulated switch in which the arrangement of insulators is changed so that the initial insulation performance of the equipment is ensured during actual use.
（課題を解決するための手段） 本考案のガス絶縁開閉器は、断路器と接地開閉器とを
一つの金属タンク内に収納するとともに、断路器可動接
触子の操作方向を上下方向となるように、かつ、前記断
路器可動接触子を駆動操作する絶縁操作棒が断路器可動
接触子の操作方向と直交するように配置したガス絶縁開
閉器において、前記断路器の下側導体を前記金属タンク
の内側面から奥まった個所に設けた絶縁スペーサにより
支持するとともに、前記絶縁操作棒より上部に位置する
全ての接地開閉器の可動接触子の位置を前記断路器可動
接触子の操作方向と直交し、絶縁操作棒を含む平面に投
影した位置と前記絶縁操作棒とのなす角度が90°以上の
位置に設けたことを特徴とするものである。(Means for Solving the Problems) In the gas-insulated switch of the present invention, the disconnecting switch and the grounding switch are housed in one metal tank, and the operating direction of the disconnecting switch movable contact is the vertical direction. And in a gas-insulated switch arranged so that the insulation operating rod for driving and operating the disconnector movable contactor is orthogonal to the operating direction of the disconnector movable contactor, wherein the lower conductor of the disconnector is the metal tank. While being supported by an insulating spacer provided at a position recessed from the inner side surface of the, the positions of the movable contacts of all the earthing switches located above the insulating operation rod are orthogonal to the operating direction of the disconnector movable contact. It is characterized in that it is provided at a position where an angle formed by a position projected on a plane including the insulating operation rod and the insulating operation rod is 90 ° or more.
（作用） 本考案においては、断路器の下側導体を支持する絶縁
スペーサが金属タンクの内側面から奥まった個所に設け
たことにより接地開閉器に生じるしゃ断粉塵が絶縁スペ
ーサ上に堆積しない。また断路器の絶縁操作棒にも接地
開閉器の接地開閉器の接点部から90°以上ずれた位置に
あるので、しゃ断粉塵が堆積しない。(Operation) In the present invention, since the insulating spacer for supporting the lower conductor of the disconnector is provided at a position recessed from the inner side surface of the metal tank, the blocking dust generated in the ground switch does not accumulate on the insulating spacer. In addition, since the insulation operating rod of the disconnector is also located at a position 90 ° or more away from the contact of the earthing switch of the earthing switch, blocking dust will not accumulate.
（実施例） 本考案を第１図および第２図に示す実施例を参照して
説明する。第１図および第２図において、第３図および
第５図と同一符号は同一部分を示すものであるからその
説明を省略する。まず第１図において、本考案によるガ
ス絶縁開閉器を構成する断路器DS、接地開閉器ES1，ES2
およびガスしゃ断器GCBの基本構成要素は従来のものと
同一である。(Embodiment) The present invention will be described with reference to an embodiment shown in FIGS. 1 and 2. In FIGS. 1 and 2, the same reference numerals as those in FIGS. 3 and 5 indicate the same parts, and thus the description thereof will be omitted. First, referring to FIG. 1, the disconnecting switch DS, the grounding switches ES 1 and ES 2 which compose the gas-insulated switch according to the present invention.
And the basic components of the gas breaker GCB are the same as the conventional ones.
本考案のガス絶縁開閉器においては、断路器DSの可動
側接触部３は金属タンク１の側面に分岐部19に設けた絶
縁スペーサ17により支持している。この絶縁スペーサ17
は金属タンク１の主胴から奥まるように配置し、上方か
ら接地開閉器ES1のしゃ断粉塵が落下してきても当らな
いように構成するとともに、ガスしゃ断器GCBとのガス
区分を行なうようになっている。さらに本考案において
は、断路器DSの絶縁操作棒６は接地開閉器ES1の接点部
の位置に対して90°以上（図示では反対位置）ずらした
位置に配置し、しゃ断粉塵が及ばないようにしている。In the gas-insulated switch of the present invention, the movable contact portion 3 of the disconnector DS is supported by the insulating spacer 17 provided at the branch portion 19 on the side surface of the metal tank 1. This insulating spacer 17
Is arranged so as to be recessed from the main body of the metal tank 1 so that the breaking dust of the grounding switch ES 1 does not hit even if it falls from above, and it also separates the gas from the gas breaker GCB. Has become. Further, in the present invention, the insulating operation rod 6 of the disconnecting switch DS is arranged at a position displaced by 90 ° or more (opposite position in the drawing) with respect to the position of the contact portion of the earthing switch ES 1 so as to prevent cutting dust from reaching. I have to.
このように構成した本考案のガス絶縁開閉器において
は、実使用に当って接地開閉器ES1による誘導電流の開
閉時にアークによってしゃ断粉塵が発生しても、絶縁ス
ペーサ17の上に堆積することなく、かつ下方の金属タン
ク１の底部の低電界部に落下するため、この粉塵の発生
による機器の絶縁性能の低下は完全に除去できる。In the gas-insulated switch of the present invention configured as described above, in actual use, even if the cutting dust is generated by the arc when the induced current is switched by the ground switch ES 1, the dust is deposited on the insulating spacer 17. Since it does not exist and falls to the low electric field portion at the bottom of the metal tank 1 below, the deterioration of the insulation performance of the device due to the generation of dust can be completely eliminated.
さらに現在、電力系統はますますその重要性を増し、
変電機器にとって停電を発生させないことは最重要条件
である。本考案においては、接地開閉器ES1と断路器DS
との配置関係が同一方向にないことによる点検性に若干
のわずらわしさはあるものの、機器の信頼性が充分確保
され、据付初期の絶縁性能をそのまま保持される機器を
提供することができる。これは変電機器に対する社会的
使命を考慮するとその効果は極めて大きい。Moreover, nowadays, power systems are becoming increasingly important,
It is the most important condition for substation equipment not to cause a power failure. In the present invention, the earthing switch ES 1 and the disconnecting switch DS
It is possible to provide a device in which the reliability of the device is sufficiently ensured and the insulation performance at the initial stage of installation is maintained as it is, though the checkability due to the fact that the arrangement relationship with is not in the same direction is somewhat troublesome. This is extremely effective in consideration of the social mission of substation equipment.
なお、第２図に示す他の実施例においては、断路器DS
の可動側接触部３を金属タンク１の底部から絶縁筒18に
よって支持させたもので、この構成によっても同様の効
果が得られる。In addition, in the other embodiment shown in FIG. 2, the disconnector DS
The movable side contact portion 3 is supported from the bottom of the metal tank 1 by the insulating cylinder 18, and the same effect can be obtained by this configuration.
以上のように本考案によれば、断路器下側の導体を金
属タンクの側面から奥まった位置に取りつけた絶縁スペ
ーサによって支持するとともに、絶縁操作棒より上部に
位置する全ての接地開閉器の可動接触子の位置を断路器
可動接触子の操作方向と直交し、絶縁操作棒を含む平面
に投影した位置と絶縁操作棒とのなす角度が90°以上の
位置となるように設けたことにより、接地開閉器が誘導
電流をしゃ断する際に発生する金属粉塵が絶縁スペーサ
上や絶縁操作棒上に堆積することなく、機器の絶縁性能
を初期の性能レベル確保することができる。As described above, according to the present invention, the conductor on the lower side of the disconnector is supported by the insulating spacer attached at the position recessed from the side surface of the metal tank, and at the same time, the movement of all earthing switches located above the insulating operation rod is movable. The position of the contactor is orthogonal to the operating direction of the disconnector movable contactor, and the angle formed by the insulating operation rod and the position projected on the plane including the insulating operation rod is set to 90 ° or more. The initial performance level of the insulation performance of the device can be secured without the metal dust generated when the ground switch interrupts the induced current, accumulating on the insulation spacer or the insulation operation rod.
第１図ＡおよびＢは本考案のガス絶縁開閉器の一実施例
を要部を載断して示す正面図および側面図、第２図は本
考案の他の実施例を示す要部載断正面図、第３図は従来
のガス絶縁開閉器を示す要部載断正面図、第４図はガス
絶縁開閉器の単線結線図、第５図は第３図の要部の拡大
断面図である。 DS……断路器、DCB……ガスしゃ断器 ES1，ES2……接地開閉器、１……金属タンク ２……DS固定側接触部、３……DS可動側接触子 ４……DS可動側接触子、６……絶縁操作棒 ８……ES1固定側接触部、10……ES2固定側接触部 11……ES2可動接触部、13,14……絶縁スペーサ 15……粉塵1A and 1B are a front view and a side view showing an embodiment of a gas-insulated switch of the present invention by cutting out a main part thereof, and FIG. 2 is a view of another embodiment of the present invention by cutting out a main part. Front view, FIG. 3 is a front view of a conventional gas-insulated switch with a main part cut off, FIG. 4 is a single wire connection diagram of the gas-insulated switch, and FIG. 5 is an enlarged cross-sectional view of the main part of FIG. is there. DS …… Disconnector, DCB …… Gas breaker ES 1 , ES 2 …… Grounding switch, 1 …… Metal tank 2 …… DS fixed side contact part, 3 …… DS movable contact 4 …… DS movable Side contactor, 6 ... Insulation operating rod 8 ... ES 1 Fixed side contact part, 10 ... ES 2 Fixed side contact part 11 ... ES 2 Movable contact part, 13, 14 ... Insulation spacer 15 ... Dust
Claims (1)
内に収納するとともに、断路器可動接触子の操作方向を
上下方向となるように、かつ、前記断路器可動接触子を
駆動操作する絶縁操作棒が断路器可動接触子の操作方向
と直交するように配置したガス絶縁開閉器において、前
記断路器の下側導体を前記金属タンクの内側面から奥ま
った個所に設けた絶縁スペーサにより支持するととも
に、前記絶縁操作棒より上部に位置する全ての接地開閉
器の可動接触子の位置を前記断路器可動接触子の操作方
向と直交し、絶縁操作棒を含む平面に投影した位置と前
記絶縁操作棒とのなす角度が90°以上の位置に設けたこ
とを特徴とするガス絶縁開閉器。1. A disconnector and a grounding switch are housed in a single metal tank, and the movable contact of the disconnector is operated in a vertical direction, and the movable contact of the disconnector is driven and operated. In the gas-insulated switch in which the insulating operating rod is arranged so as to be orthogonal to the operating direction of the disconnector movable contactor, the lower conductor of the disconnector is provided by an insulating spacer provided at a location recessed from the inner surface of the metal tank. While supporting, the positions of the movable contactors of all the earthing switches located above the insulating operation rod are orthogonal to the operating direction of the disconnector movable contactor, and the positions projected on a plane including the insulating operation rod and A gas-insulated switch characterized in that it is installed at a position where the angle formed by the insulated operating rod is 90 ° or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988026010U JPH087764Y2 (en) | 1988-03-01 | 1988-03-01 | Gas insulated switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988026010U JPH087764Y2 (en) | 1988-03-01 | 1988-03-01 | Gas insulated switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01131207U JPH01131207U (en) | 1989-09-06 |
| JPH087764Y2 true JPH087764Y2 (en) | 1996-03-04 |
Family
ID=31247244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988026010U Expired - Lifetime JPH087764Y2 (en) | 1988-03-01 | 1988-03-01 | Gas insulated switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH087764Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2535090Y2 (en) * | 1991-05-10 | 1997-05-07 | 株式会社井上電機製作所 | Tank type circuit breaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0418067Y2 (en) * | 1985-08-20 | 1992-04-22 | ||
| JPS6328206A (en) * | 1986-07-18 | 1988-02-05 | 株式会社東芝 | Gas insulated switchgear |
-
1988
- 1988-03-01 JP JP1988026010U patent/JPH087764Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01131207U (en) | 1989-09-06 |
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