JP2003047113A - Switching device - Google Patents
Switching deviceInfo
- Publication number
- JP2003047113A JP2003047113A JP2001231957A JP2001231957A JP2003047113A JP 2003047113 A JP2003047113 A JP 2003047113A JP 2001231957 A JP2001231957 A JP 2001231957A JP 2001231957 A JP2001231957 A JP 2001231957A JP 2003047113 A JP2003047113 A JP 2003047113A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- switchgear
- circuit breaker
- conductor
- disconnector
- 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.)
- Pending
Links
Landscapes
- Gas-Insulated Switchgears (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は開閉装置に関し、絶
縁媒体としてＳＦ6ガスを用いないようにしたものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switchgear, in which SF 6 gas is not used as an insulating medium.
【０００２】[0002]
【従来の技術】高電圧の回路を開閉するにはガス絶縁開
閉装置が用いられる。ガス絶縁開閉装置には、円筒形の
管路の内部にガス遮断器（ＧＣＢ），断路器（ＤＳ），
接地開閉器（ＥＳ），避雷器（ＬＡ）等を収容するとと
もに絶縁媒体として０．２〜０．６５ＭＰａの高圧のＳ
Ｆ6ガスを管路に封入した管路形ガス絶縁装置と、矩形
の容器の内部に前記の機器を収容するとともに絶縁媒体
として０〜０．１ＭＰａの低圧のＳＦ6ガスを容器内に
封入したキュービクル形ガス絶縁開閉装置がある。Gas insulated switchgear is used to open and close high voltage circuits. The gas insulated switchgear includes a gas circuit breaker (GCB), a disconnector (DS),
It accommodates a grounding switch (ES), a lightning arrester (LA), etc.
A pipe-type gas insulation device in which F 6 gas is sealed in a pipe, and the above-mentioned equipment is housed in a rectangular container, and a low-pressure SF 6 gas of 0 to 0.1 MPa is sealed in the container as an insulating medium. There is a cubicle type gas insulated switchgear.
【０００３】１２〜７２／８４ＫＶクラスの高電圧の開
閉装置は、省スペース及び絶縁確保の観点から、ＳＦ6
ガスを用いた前記のガス絶縁開閉装置が用いられてい
る。ＳＦ6ガスを用いるのは、ガス遮断器を使用した
ときに大電流遮断が行えかつ絶縁回復力が大きい、断
路器や接地開閉器は開閉中及び開状態における絶縁性能
を確保する必要があり、ＳＦ6ガスが好適であることに
よる。The high voltage switchgear of 12 to 72/84 KV class is SF 6 from the viewpoint of space saving and ensuring insulation.
The gas-insulated switchgear described above using gas is used. The use of SF 6 gas enables large current interruption when a gas circuit breaker is used and has a large insulation recovery force, and it is necessary for the disconnecting switch and the earthing switch to secure the insulating performance during opening and closing, This is because SF 6 gas is preferable.
【０００４】[0004]
【発明が解決しようとする課題】ところが、近年、地球
温暖化の問題がクローズアップされており、大気中への
放出を削減すべき対象としてＳＦ6ガスが挙げられ、Ｓ
Ｆ6ガスの使用量の削減や現地、工場でのＳＦ6ガスの回
収が義務付けられている。このため、開閉装置をＳＦ6
ガスレス化することが課題となっている。However, in recent years, the problem of global warming has been highlighted, and SF 6 gas has been mentioned as a target for reducing its emission into the atmosphere.
It is obligatory to reduce the amount of F 6 gas used and to collect SF 6 gas locally and in factories. Therefore, the switchgear SF 6
The challenge is to make gas less.
【０００５】そこで本発明は、斯かる課題を解決した開
閉装置を提供することを目的とする。Therefore, an object of the present invention is to provide an opening / closing device that solves such problems.
【０００６】[0006]
【課題を解決するための手段】斯かる目的を達成するた
めの本発明の構成は、遮断器と断路器と接地開閉器とで
構成される開閉装置において、真空容器の内部に、固定
電極を有する固定リード棒と該固定電極に対して接触・
離反する可動電極を有する可動リード棒とを気密に導入
して構成される真空インタラプタを前記遮断器及び断路
器及び接地開閉器として用い、前記真空インタラプタの
夫々を固体絶縁物で覆ったことを特徴とする。The structure of the present invention for achieving such an object is a switchgear comprising a circuit breaker, a disconnector and a ground switch, and a fixed electrode is provided inside a vacuum container. Contact with the fixed lead rod and the fixed electrode
A vacuum interrupter configured by air-tightly introducing a movable lead rod having a movable electrode that is separated from each other is used as the breaker, the disconnector, and the ground switch, and each of the vacuum interrupters is covered with a solid insulator. And
【０００７】[0007]
【発明の実施の形態】以下、本発明による開閉装置の実
施の形態を説明する。
（ａ）実施の形態１
まず、開閉装置の実施の形態１としての受電ユニットの
構成を説明する。図２に示す受電ユニットの単線結線図
において、遮断器１，断路器２・３，接地開閉器４とし
て真空インタラプタが使用されている。真空インタラプ
タは、真空容器の内部に、固定電極を内端部に有する固
定リード棒と、固定電極に対して接触・離反する可動電
極を内端部に有する可動リード棒とを導入し、真空容器
と可動リード棒との間に蛇腹状のベローズを介在させる
ことによって気密を保持した状態で可動リード棒の移動
を可能にしたものである。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a switchgear according to the present invention will be described below. (A) First Embodiment First, the configuration of a power receiving unit as a first embodiment of a switchgear will be described. In the single wire connection diagram of the power receiving unit shown in FIG. 2, a vacuum interrupter is used as the circuit breaker 1, the disconnector 2 · 3, and the grounding switch 4. The vacuum interrupter introduces a fixed lead rod having a fixed electrode at an inner end portion and a movable lead rod having a movable electrode at an inner end portion that comes into contact with and separates from the fixed electrode, into a vacuum container, By interposing a bellows-like bellows between the movable lead rod and the movable lead rod, the movable lead rod can be moved while maintaining airtightness.
【０００８】図１に示すように、遮断器１，断路器２・
３，接地開閉器４，避雷器５の夫々が固体絶縁物７によ
って覆われた状態で、水平方向へ三相分ずつ並べてタン
ク８内に取り付けられている。これらのうちの避雷器５
を除く遮断器１，断路器２・３，接地開閉器４について
は、固定リード棒１ａ〜４ａが固体絶縁物７から右方へ
突出する一方、可動リード棒１ｂ〜４ｂが気密なロッド
室７ａ内へ突出し、タンク８の外部に設けられた操作部
１ｄ〜４ｄからタンク８を気密に貫通した絶縁ロッド１
ｃ〜４ｃに連動連結されている。As shown in FIG. 1, the circuit breaker 1, the disconnector 2,
3, the grounding switch 4, and the lightning arrester 5 are mounted in the tank 8 in a state of being covered by the solid insulator 7 so that three phases are arranged in the horizontal direction. Lightning arrester 5 of these
In the case of the circuit breaker 1, the disconnector 2 · 3, and the grounding switch 4, except for the fixed lead rods 1a to 4a project rightward from the solid insulator 7, the movable lead rods 1b to 4b are airtight rod chambers 7a. Insulating rod 1 that protrudes inward and penetrates the tank 8 in an airtight manner from operating portions 1d to 4d provided outside the tank 8.
It is interlockingly connected to c-4c.
【０００９】タンク８内は隔壁８ａにより母線室９ａと
機器室９ｂとに分割されており、三相分の母線１０が母
線室９ａを貫通した状態で設けられている。一方、タン
ク８の右外には三相分のケーブルヘッド６が取り付けら
れ、夫々のケーブルヘッド６にはケーブル１１が接続さ
れている。三相分の母線１０とケーブルヘッド６との間
の接続は各相について同じなので、一相分についてのみ
説明する。The inside of the tank 8 is divided by a partition wall 8a into a busbar chamber 9a and an equipment chamber 9b, and busbars 10 for three phases are provided so as to penetrate the busbar chamber 9a. On the other hand, cable heads 6 for three phases are attached to the outer right side of the tank 8, and cables 11 are connected to the respective cable heads 6. Since the connection between the busbar 10 and the cable head 6 for three phases is the same for each phase, only one phase will be described.
【００１０】固体絶縁物７を気密に貫通する導体１２の
上端が母線１０に接続され、下端には可動リード棒２ｂ
が摺動自在に貫通している。三相絶縁スペーサ１３を介
して隔壁８ａを貫通する導体１４の上端には固定リード
棒２ａが接続され、下端には固定リード棒１ａが接続さ
れている。遮断器１，断路器３の固体絶縁物７を夫々気
密に貫通する導体１５の上端、下端には、可動リード棒
１ｂ，３ｂが摺動自在に貫通している。断路器３，接地
開閉器４の固定リード棒３ａ，４ａと避雷器５の端子５
ａとケーブルヘッド６とが導体１６を介して接続されて
いる。接地開閉器４の可動リード棒４ｃは、一端がタン
ク８を介して接地された導体１７の他端に摺動自在に貫
通している。An upper end of a conductor 12 that penetrates the solid insulator 7 in an airtight manner is connected to a bus bar 10, and a movable lead rod 2b is provided at a lower end thereof.
Penetrates slidably. The fixed lead rod 2a is connected to the upper end of the conductor 14 penetrating the partition wall 8a via the three-phase insulating spacer 13, and the fixed lead rod 1a is connected to the lower end thereof. The movable lead rods 1b and 3b slidably pass through the upper and lower ends of the conductors 15 that hermetically pass through the solid insulators 7 of the circuit breaker 1 and the disconnector 3, respectively. Fixed lead rods 3a, 4a of the disconnector 3, the earthing switch 4 and the terminal 5 of the lightning arrester 5
a and the cable head 6 are connected via the conductor 16. The movable lead rod 4c of the grounding switch 4 slidably penetrates the other end of the conductor 17 whose one end is grounded via the tank 8.
【００１１】以上のように構成されており、母線室９
ａ，機器室９ｂ，各ロッド室７ａの内部にはＮ2ガスが
封入されている。なお、Ｎ2ガスに代えて乾燥エアーを
封入してもよい。The bus room 9 is constructed as described above.
a, N 2 gas is sealed equipment room 9b, inside each rod chamber 7a. Dry air may be enclosed instead of N 2 gas.
【００１２】斯かる開閉装置では、母線室９ａ，機器室
９ｂにＮ2ガスを封入した後に工場あるいは現地で分解
して修理等する場合には、ＳＦ6ガスを用いる場合のよ
うに回収する必要がなく、大気中へ放出することにな
る。そして、修理等が終了した後にＮ2ガスを再び封入
する。
（ｂ）実施の形態２
次に、実施の形態２を図３に基づいて説明する。実施の
形態２は、実施の形態１において、各ロッド室７ａの内
部にＮ2ガスに代えて、絶縁性能のすぐれた絶縁油を充
填したものである。In such a switchgear, when N 2 gas is sealed in the busbar chamber 9a and the equipment chamber 9b and then disassembled for repair at a factory or in the field, it is necessary to recover as in the case of using SF 6 gas. It will be released into the atmosphere. Then, after repairs and the like are completed, N 2 gas is charged again. (B) Second Embodiment Next, a second embodiment will be described with reference to FIG. In the second embodiment, the inside of each rod chamber 7a in the first embodiment is filled with insulating oil having excellent insulating performance instead of N 2 gas.
【００１３】Ｎ2ガスを用いる場合に比べ、絶縁油を用
いると絶縁性能が優れているために小形化が可能であ
る。換言すると、Ｎ2ガスと絶縁油との絶縁性能を同等
にするには、Ｎ2ガスの封入圧力を３〜６ｋｇｆ／ｃｍ2
の高圧にしなければならない。Compared with the case of using N 2 gas, the use of insulating oil makes it possible to reduce the size because of its excellent insulating performance. In other words, in order to make the insulation performance between N 2 gas and insulating oil equal, the filling pressure of N 2 gas should be 3 to 6 kgf / cm 2.
Must be high pressure.
【００１４】その他の構成、作用は実施の形態１と同じ
なので、説明を省略する。
（ｃ）実施の形態３
次に、実施の形態３を図４に基づいて説明する。実施の
形態３は、実施の形態１において、接続を目的とする導
体１２，１４，１５，１６の表面をゴム樹脂モールド１
８によって覆って露出しないようにしたものである。Since the other structure and operation are the same as those of the first embodiment, the description thereof will be omitted. (C) Third Embodiment Next, a third embodiment will be described with reference to FIG. The third embodiment differs from the first embodiment in that the surfaces of the conductors 12, 14, 15, 16 intended for connection are covered with the rubber resin mold 1.
It is covered with 8 so as not to be exposed.
【００１５】斯かる開閉装置では、Ｎ2ガス中へ露出す
る導体を絶縁物によりモールドしたので、絶縁性能が向
上する。このため、開閉装置の縮小化又はＮ2ガス圧力
の低圧化が図れる。In such a switchgear, the conductor exposed to the N 2 gas is molded with an insulator, so that the insulation performance is improved. Therefore, the switchgear can be downsized or the N 2 gas pressure can be reduced.
【００１６】その他の構成、作用は実施の形態１と同じ
なので、説明を省略する。
（ｄ）実施の形態４
次に、実施の形態４に係る受電ユニットを図５に基づい
て説明する。単線結線図は図２と同じであり、遮断器
１，断路器２・３，接地開閉器４，避雷器５，ケーブル
ヘッド６と、接続のための導体１２，１４，１７につい
ては実施の形態と対応した符号が用いられている。導体
１５は導体１５ａ，１５ｂに分割され、導体１６は導体
１６ａ，１６ｂ，１６ｃに分割されている。The other structure and operation are the same as those of the first embodiment, and therefore the description thereof will be omitted. (D) Fourth Embodiment Next, a power receiving unit according to the fourth embodiment will be described with reference to FIG. The single wire connection diagram is the same as that of FIG. 2, and the circuit breaker 1, the disconnecting switch 2.3, the grounding switch 4, the lightning arrester 5, the cable head 6, and the conductors 12, 14, 17 for connection are the same as those of the embodiment. Corresponding symbols are used. The conductor 15 is divided into conductors 15a and 15b, and the conductor 16 is divided into conductors 16a, 16b and 16c.
【００１７】断路器２，遮断器１，断路器３，接地開閉
器４として前記と同様に真空インタラプタが使用され、
これらと避雷器５とが個別に固体絶縁物２０〜２４によ
って覆われており、固体絶縁物に形成した凹部と凸部と
を嵌脱することにより、機械的な結合・分離と電気的な
接続・断路とが同時に行えるようになっている。即ち、
以下のようになっている。A vacuum interrupter is used as the disconnector 2, the circuit breaker 1, the disconnector 3, and the grounding switch 4 as described above.
These and the lightning arrester 5 are individually covered with the solid insulators 20 to 24, and the recesses and the protrusions formed in the solid insulator are inserted into and removed from each other, so that mechanical coupling / separation and electrical connection / The disconnection can be done at the same time. That is,
It is as follows.
【００１８】母線１０はゴム樹脂モールド１８に覆われ
ており、ゴム樹脂モールド１８に形成した凸部１８ａを
固体絶縁物２０に形成した凹部２０ａに嵌合することに
より導体１２と可動リード棒２ａとが接続され、同様に
して（凸部２０ｂ・凹部２１ａ−導体１４・固定リード
棒１ａ）、（凸部２２ａ・凹部２１ｂ−導体１５ａ・導
体１５ｂ）、（凸部２５ａ・凹部２２ｂ−導体１６ａ・
固定リード棒３ａ）、（凸部２６ａ・凹部２５ｂ−導体
１６ｂ・導体１６ａ）、（凸部２５ｃ・凹部２３ａ−導
体１６ａ・固定リード棒４ａ）、（凸部２６ａ・凹部２
５ｂ−導体１６ｂ・導体１６ａ）、（凸部２７ａ・凹部
２６ｂ−導体１６ｃ・１６ｂ）、（凸部２４ａ・凹部２
６ｃ−端子５ａ・導体１６ｂ）、（凸部６ａ・凹部２７
ｂ−端子６ｂ・導体１６ｃ）の結合と接続とが行われて
いる。ケーブルヘッド１６は固体絶縁物に覆われておら
ず、導体１６ａ〜１６ｃは個別の固体絶縁物２５〜２７
に覆われている。２８は変流器である。これらの固体絶
縁物等は枠３２ａ，３２ｂに取り付けられている。The bus bar 10 is covered with a rubber resin mold 18, and the convex portion 18a formed on the rubber resin mold 18 is fitted into the concave portion 20a formed on the solid insulator 20 so that the conductor 12 and the movable lead rod 2a are connected. In the same manner (projection 20b / recess 21a-conductor 14 / fixed lead bar 1a), (projection 22a / recess 21b-conductor 15a / conductor 15b), (projection 25a / recess 22b-conductor 16a /
(Fixed lead rod 3a), (projection 26a / recess 25b-conductor 16b / conductor 16a), (projection 25c / recess 23a-conductor 16a / fixed lead bar 4a), (projection 26a / recess 2)
5b-conductor 16b / conductor 16a), (projection 27a / recess 26b-conductor 16c / 16b), (projection 24a / recess 2)
6c-terminal 5a / conductor 16b), (projection 6a / recess 27
The b-terminal 6b and the conductor 16c) are coupled and connected. The cable head 16 is not covered by a solid insulator and the conductors 16a-16c are individual solid insulators 25-27.
Is covered with. 28 is a current transformer. These solid insulators and the like are attached to the frames 32a and 32b.
【００１９】固体絶縁物２０〜２２における絶縁ロッド
１ｃ〜３ｃが収容されるロッド室２０ｄ〜２２ｄはキャ
ップ２０ｅ〜２２ｅで覆われているが、大気中と連通さ
れていて、気中絶縁となっている。The rod chambers 20d to 22d for accommodating the insulating rods 1c to 3c in the solid insulators 20 to 22 are covered with caps 20e to 22e, but they are communicated with the atmosphere and are air-insulated. There is.
【００２０】斯かる開閉装置は、固体絶縁物２０〜２４
と、固体絶縁物２５〜２７とケーブルヘッド６とを分離
すると、結果として断路器２，遮断器１，断路器３，接
地開閉器４，避雷器５，ケーブルヘッド６を分離するこ
とができる。つまり、固体絶縁物に形成された凸部を凹
部から抜き取ると、導体とリード棒あるいは導体どうし
の接続が断たれることになり、機械的な結合と電気的な
接続とが同時に断たれる。Such a switchgear comprises solid insulators 20-24.
When the solid insulators 25 to 27 and the cable head 6 are separated, as a result, the disconnector 2, the circuit breaker 1, the disconnector 3, the grounding switch 4, the lightning arrester 5, and the cable head 6 can be separated. That is, when the convex portion formed on the solid insulator is removed from the concave portion, the connection between the conductor and the lead rod or between the conductors is disconnected, and the mechanical connection and the electrical connection are disconnected at the same time.
【００２１】母線１０と断路器２との接続を外し、断路
器２等と操作部１ｄ〜４ｄとの連結を外せば全てが分解
されることになる。
（ｅ）実施の形態５
次に、実施の形態５を図６に基づいて説明する。If the bus bar 10 and the disconnecting switch 2 are disconnected and the disconnecting switch 2 and the like and the operating portions 1d to 4d are disconnected, everything will be disassembled. (E) Fifth Embodiment Next, a fifth embodiment will be described with reference to FIG.
【００２２】この実施の形態５は、図５の実施の形態４
における断路器２，遮断器１，断路器３のロッド室２０
ｄ，２１ｄ，２２ｄの内部を密閉空間とし、Ｎ2ガスを
封入したものである。なお、Ｎ2ガスに代えて、乾燥エ
アー又は絶縁油を封入してもよい。The fifth embodiment is the same as the fourth embodiment shown in FIG.
Rod chamber 20 of disconnector 2, circuit breaker 1, disconnector 3 in
The interiors of d, 21d and 22d are hermetically sealed spaces, and N 2 gas is sealed therein. Note that dry air or insulating oil may be enclosed instead of the N 2 gas.
【００２３】斯かる開閉装置は、図５の実施の形態４よ
りも絶縁性能が向上し、ＳＦ6ガスを用いないので耐環
境性も高い。Such a switchgear has improved insulation performance as compared with the fourth embodiment shown in FIG. 5, and since it does not use SF 6 gas, it has high environmental resistance.
【００２４】その他の構成、作用は実施の形態４と同じ
なので説明を省略する。
（ｆ）実施の形態６
次に、実施の形態６を図７に基づいて説明する。The other structure and operation are the same as those of the fourth embodiment, and therefore their explanations are omitted. (F) Sixth Embodiment Next, a sixth embodiment will be described with reference to FIG.
【００２５】この実施の形態６は、図５の開閉装置にお
ける遮断器１，断路器３，接地開閉器４をモールドして
一体化したものである。換言すれば、図５における固体
絶縁物２１，２２，２３，２５，２６，２７を一体化し
て単一の固体絶縁物２９としたものである。このため、
遮断器１と断路器３との可動リード棒１ｂ，３ｂは単一
の導体３０を介して摺動自在に接続されている。また、
断路器３の固定リード棒３ａと接地開閉器４の固定リー
ド棒４ａと避雷器５の端子５ａとケーブルヘッド６の端
子６ｂとは、単一の導体３１を介して接続されている。
そして、固体絶縁物２９の下部には各絶縁ロッドを収容
するロッド室２９ｄ〜２９ｆが形成されている。In the sixth embodiment, the circuit breaker 1, the disconnector 3, and the ground switch 4 in the switchgear of FIG. 5 are molded and integrated. In other words, the solid insulators 21, 22, 23, 25, 26, 27 in FIG. 5 are integrated into a single solid insulator 29. For this reason,
The movable lead rods 1b and 3b of the circuit breaker 1 and the disconnector 3 are slidably connected via a single conductor 30. Also,
The fixed lead rod 3 a of the disconnector 3, the fixed lead rod 4 a of the ground switch 4, the terminal 5 a of the lightning arrester 5 and the terminal 6 b of the cable head 6 are connected via a single conductor 31.
Then, under the solid insulator 29, rod chambers 29d to 29f for accommodating each insulating rod are formed.
【００２６】遮断器１への断路器２の接続部は図５と同
様に（凸部２０ｂ・凹部２９ａ−導体１４・固定リード
棒１ａ）による（機械的−電気的）結合になっている。
導体３１への避雷器５，ケーブルヘッド６の接続は、
（凸部２４ａ・凹部２９ｂ−端子５ａ・導体３１）によ
る結合と、（凸部６ａ・凹部２９ｃ−端子６ｂ・導体３
１）による結合となっている。The connection portion of the disconnecting switch 2 to the circuit breaker 1 is (mechanical-electrical) coupling by (protrusion 20b / recess 29a-conductor 14 / fixed lead bar 1a) as in FIG.
Connection of the arrester 5 and the cable head 6 to the conductor 31 is
(Projection 24a / concave portion 29b-terminal 5a / conductor 31), and (projection 6a / concave portion 29c-terminal 6b / conductor 3)
It is a combination according to 1).
【００２７】斯かる開閉装置では、遮断器１，断路器
３，接地開閉器４を一体にモールドしたことから、これ
らの機器間での通電の信頼性と絶縁の信頼性とが高い。
（ｇ）実施の形態７
次に、実施の形態７を図８に基づいて説明する。In such a switchgear, the circuit breaker 1, the disconnecting switch 3, and the grounding switch 4 are integrally molded, so that the reliability of energization and the reliability of insulation between these devices are high. (G) Seventh Embodiment Next, a seventh embodiment will be described with reference to FIG.
【００２８】この実施の形態７は、図７の実施の形態６
において、遮断器１，断路器２・３のロッド室２０ｄ・
２９ｄ・２９ｅの内部にＮ2ガスを封入したものであ
る。なお、Ｎ2ガスに代えて乾燥エアー又は絶縁油を封
入してもよい。The seventh embodiment is the same as the sixth embodiment shown in FIG.
In the rod chamber 20d of the circuit breaker 1 and the disconnector 2/3
29 d and 29 e are filled with N 2 gas. Note that dry air or insulating oil may be enclosed instead of N 2 gas.
【００２９】斯かる開閉装置は図７の実施の形態６より
も絶縁性能が向上し、ＳＦ6ガスを用いないので耐環境
性も高い。This switchgear has improved insulation performance as compared with the sixth embodiment shown in FIG. 7 and has high environmental resistance because SF 6 gas is not used.
【００３０】その他の構成、作用は実施の形態６と同じ
なので、説明を省略する。
（ｈ）実施の形態８
次に、実施の形態８を図９に基づいて説明する。この場
合においても、図１０に示す変圧器一次ユニットの単線
結線図において、遮断器３３，断路器３４として前記の
真空インタラプタが使用されている。The other structure and operation are the same as those of the sixth embodiment, and therefore the description thereof will be omitted. (H) Eighth Embodiment Next, an eighth embodiment will be described with reference to FIG. Also in this case, the vacuum interrupter is used as the circuit breaker 33 and the disconnector 34 in the single wire connection diagram of the transformer primary unit shown in FIG.
【００３１】図９に示すように、断路器３４を覆う固体
絶縁物３７と、遮断器３３を覆う固体絶縁物３８と、導
体３６を覆う固体絶縁物３９とが枠４０，４１に取り付
けられている。これらは夫々３相分ずつ水平方向へ並べ
て設けられているが、平面図は図示省略する。As shown in FIG. 9, a solid insulator 37 covering the disconnector 34, a solid insulator 38 covering the circuit breaker 33, and a solid insulator 39 covering the conductor 36 are attached to the frames 40 and 41. There is. These are arranged in the horizontal direction for each of the three phases, but a plan view is omitted.
【００３２】図のように母線４２はゴム樹脂モールド４
３に覆われており、ゴム樹脂モールド４３に形成した凸
部４３ａを固体絶縁物３７に形成した凹部３７ａに嵌合
することにより導体４２と固定リード棒３４ａとが接続
されている。同様にして、（凸部３７ｂ・凹部３８ａ−
導体４５・固定リード棒３３ａ）、（凸部３９ａ・凹部
３８ｂ−導体３６・導体４６）、（凸部３５ａ・凹部３
９ｂ−導体３５ｂ・導体３６）、の結合と接続とが行わ
れている。そして、ケーブルヘッド３５にケーブル４７
の一端が接続されている。As shown in the figure, the bus bar 42 is a rubber resin mold 4
3, the conductor 42 and the fixed lead rod 34a are connected by fitting the convex portion 43a formed in the rubber resin mold 43 into the concave portion 37a formed in the solid insulator 37. Similarly, (the convex portion 37b and the concave portion 38a-
Conductor 45 / fixed lead bar 33a), (projection 39a / recess 38b-conductor 36 / conductor 46), (projection 35a / recess 3)
9b-conductor 35b and conductor 36) are connected and connected. Then, the cable 47 is connected to the cable head 35.
One end of is connected.
【００３３】断路器３４，遮断器３３については、気密
なロッド室３７ｃ，３８ｃの内部へ可動リード棒３４
ｂ，３３ｂが突出し、枠４０の左側に設けられた操作部
３４ｄ，３３ｄと可動リード棒３４ｂ，３３ｂとが絶縁
ロッド３４ｃ，３３ｃ等を介して連動連結されている。
そして、ロッド室３７ｃ，３８ｃはキャップ３７ｄ，３
８ｄで被われており、その内部は外気と同一の状態とさ
れ、気中絶縁となっている。
（ｄ）実施の形態９
最後に、実施の形態９を図１１に基づいて説明する。Regarding the disconnector 34 and the circuit breaker 33, the movable lead rod 34 is placed inside the airtight rod chambers 37c and 38c.
b and 33b are projected, and the operating portions 34d and 33d provided on the left side of the frame 40 and the movable lead rods 34b and 33b are interlockingly connected via the insulating rods 34c and 33c.
The rod chambers 37c and 38c are capped at the caps 37d and 3c.
It is covered with 8d, the inside of which is in the same state as the outside air, and is insulated in the air. (D) Ninth Embodiment Finally, the ninth embodiment will be described with reference to FIG.
【００３４】この実施の形態９は、図９の実施の形態８
における断路器３４，遮断器３３のロッド室３７ｃ，３
８ｃの内部を密閉空間とし、Ｎ2ガスを封入したもので
ある。なお、Ｎ2ガスに代えて乾燥エアー又は絶縁油を
封入してもよい。The ninth embodiment is the same as the eighth embodiment shown in FIG.
Of the disconnector 34 and the circuit breaker 33 in the rod chamber 37c, 3
The inside of 8c is a closed space, and N 2 gas is enclosed. Note that dry air or insulating oil may be enclosed instead of N 2 gas.
【００３５】斯かる開閉装置は、図９の実施の形態８よ
りも絶縁性能が向上し、ＳＦ6ガスを用いないので耐環
境性も高い。Such a switchgear has improved insulation performance as compared with the eighth embodiment shown in FIG. 9 and has high environmental resistance because SF 6 gas is not used.
【００３６】その他の構成、作用は実施の形態８と同じ
なので説明を省略する。The other structure and operation are the same as those of the eighth embodiment, and therefore their explanations are omitted.
【００３７】[0037]
【発明の効果】以上の説明からわかるように、請求項１
〜６に係る開閉装置によれば遮断器と断路器と接地開閉
器とを真空インタラプタで構成し、真空インタラプタを
固体絶縁物で覆ったので、ＳＦ6ガスレス化が達成さ
れ、耐環境性が向上する。そして、Ｎ2ガス中又は乾燥
エアー中に真空インタラプタを設けることにより絶縁性
能が向上する。また、ＳＦ6ガスを用いた場合のように
開閉装置の分解作業時にガスを回収する必要がなく、労
力の軽減になる。更に、真空インタラプタを覆う固体絶
縁物どうしを一体化した開閉装置では、接続部の通電の
信頼性と、絶縁の信頼性とが向上する。また更に、ロッ
ド室にＮ2ガスあるいは乾燥エアー又は絶縁油を封入す
ると、絶縁性能が更に向上する。As is apparent from the above description, claim 1
According to the switchgear according to ~ 6, the circuit breaker, the disconnecting switch, and the grounding switch are configured by the vacuum interrupter, and the vacuum interrupter is covered with the solid insulator, so that SF 6 gasless is achieved and the environmental resistance is improved. To do. The insulation performance is improved by providing a vacuum interrupter in N 2 gas or dry air. Further, unlike the case of using SF 6 gas, there is no need to recover the gas during the disassembling work of the switchgear, which reduces labor. Further, in the switchgear in which the solid insulators covering the vacuum interrupter are integrated, the reliability of energization of the connection portion and the reliability of insulation are improved. Furthermore, if N 2 gas, dry air or insulating oil is enclosed in the rod chamber, the insulating performance is further improved.
【図１】本発明による開閉装置の実施の形態１としての
受電ユニットに係り、（ａ）は平面断面図、（ｂ）は正
面断面図。1 relates to a power receiving unit as a first embodiment of a switchgear according to the present invention, (a) is a plan sectional view, and (b) is a front sectional view.
【図２】本発明による開閉装置の実施の形態１の単線結
線図。FIG. 2 is a single-line connection diagram of the first embodiment of the switchgear according to the present invention.
【図３】本発明による開閉装置の実施の形態２に係り、
（ａ）は平面断面図、（ｂ）は正面断面図。FIG. 3 relates to a second embodiment of a switchgear according to the present invention,
(A) is a plane sectional view, (b) is a front sectional view.
【図４】本発明による開閉装置の実施の形態３に係り、
（ａ）は平面断面図、（ｂ）は正面断面図。FIG. 4 relates to a third embodiment of a switchgear according to the present invention,
(A) is a plane sectional view, (b) is a front sectional view.
【図５】本発明による開閉装置の実施の形態４としての
受電ユニットの正面断面図。FIG. 5 is a front sectional view of a power receiving unit as a fourth embodiment of a switchgear according to the present invention.
【図６】本発明による開閉装置の実施の形態５の正面断
面図。FIG. 6 is a front sectional view of an opening / closing device according to a fifth embodiment of the present invention.
【図７】本発明による開閉装置の実施の形態６の正面断
面図。FIG. 7 is a front sectional view of an opening / closing device according to a sixth embodiment of the present invention.
【図８】本発明による開閉装置の実施の形態７の正面断
面図。FIG. 8 is a front sectional view of an opening / closing device according to a seventh embodiment of the present invention.
【図９】本発明による開閉装置の実施の形態８としての
変圧器一次ユニットの正面断面図。FIG. 9 is a front sectional view of a transformer primary unit as an eighth embodiment of a switchgear according to the present invention.
【図１０】本発明による開閉装置の実施の形態８の単線
結線図。FIG. 10 is a single wire connection diagram of an eighth embodiment of a switchgear according to the present invention.
【図１１】本発明による開閉装置の実施の形態９の正面
断面図。FIG. 11 is a front sectional view of a ninth embodiment of a switchgear according to the present invention.
１…遮断器 ２，３…断路器 ４…接地開閉器 １ａ〜４ａ…固定リード棒 １ｂ〜４ｂ…可動リード棒 ７…固体絶縁物 1 ... Circuit breaker 2, 3 ... Disconnector 4 ... Grounding switch 1a to 4a ... Fixed lead rod 1b to 4b ... Movable lead rod 7 ... Solid insulator
Claims (7)
れる開閉装置において、 真空容器の内部に、固定電極を有する固定リード棒と該
固定電極に対して接触・離反する可動電極を有する可動
リード棒とを気密に導入して構成される真空インタラプ
タを前記遮断器及び断路器及び接地開閉器として用い、 前記真空インタラプタの夫々を固体絶縁物で覆ったこと
を特徴とする開閉装置。1. A switchgear comprising a circuit breaker, a disconnector and a ground switch, wherein a fixed lead rod having a fixed electrode and a movable electrode contacting and separating from the fixed electrode are provided inside a vacuum container. A switch device characterized in that a vacuum interrupter configured by air-tightly introducing a movable lead rod having the vacuum interrupter is used as the circuit breaker, the disconnector and the ground switch, and each of the vacuum interrupters is covered with a solid insulator.
燥エアを封入したことを特徴とする請求項１に記載の開
閉装置。2. The opening / closing device according to claim 1, wherein N 2 gas or dry air is sealed inside the vacuum container.
ラプタどうしの接続部に、凹部と当該凹部に嵌脱する凸
部とを形成し、前記真空インタラプタどうしを着脱自在
に接続かつ結合したことを特徴とする請求項１に記載の
開閉装置。3. The solid insulator is provided with a concave portion and a convex portion which is fitted into and removed from the concave portion at a connecting portion between the vacuum interrupters, and the vacuum interrupters are detachably connected and coupled. The switchgear according to claim 1.
たことを特徴とする請求項３に記載の開閉装置。4. The switchgear according to claim 3, wherein the solid insulators are integrated with each other.
おける前記可動リード棒を操作手段に連動連結するため
の操作ロッドを、絶縁媒体中に設けたことを特徴とする
請求項２又は３又は４に記載の開閉装置。5. An operating rod for interlockingly connecting the movable lead rod of at least the circuit breaker and the disconnecting switch to an operating means is provided in an insulating medium. The switchgear described in.
したことを特徴とする請求項５に記載の開閉装置。6. The switchgear according to claim 5, wherein the insulating medium is N 2 gas or dry air.
とする請求項５に記載の開閉装置。7. The switchgear according to claim 5, wherein the insulating medium is insulating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001231957A JP2003047113A (en) | 2001-07-31 | 2001-07-31 | Switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001231957A JP2003047113A (en) | 2001-07-31 | 2001-07-31 | Switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003047113A true JP2003047113A (en) | 2003-02-14 |
Family
ID=19063941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001231957A Pending JP2003047113A (en) | 2001-07-31 | 2001-07-31 | Switching device |
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| Country | Link |
|---|---|
| JP (1) | JP2003047113A (en) |
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| JP2011171315A (en) * | 2011-06-10 | 2011-09-01 | Hitachi Ltd | Vacuum switchgear |
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| US10262820B2 (en) | 2014-11-27 | 2019-04-16 | Tyco Electronics Uk Ltd | High voltage circuit breaker, system, vacuum interrupter module and associated drive module |
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