JP3175434B2 - Gas insulated switchgear - Google Patents
Gas insulated switchgearInfo
- Publication number
- JP3175434B2 JP3175434B2 JP26333393A JP26333393A JP3175434B2 JP 3175434 B2 JP3175434 B2 JP 3175434B2 JP 26333393 A JP26333393 A JP 26333393A JP 26333393 A JP26333393 A JP 26333393A JP 3175434 B2 JP3175434 B2 JP 3175434B2
- Authority
- JP
- Japan
- Prior art keywords
- switch
- maintenance
- bus
- sealed container
- inspection
- 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 - Fee Related
Links
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Gas-Insulated Switchgears (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は特に三相一括形のガス遮
断器に複数の主母線を接続し、断路器，接地開閉器の各
操作器の保守点検性を改善すると共に縮小化を図ったガ
ス絶縁開閉装置に関する。BACKGROUND OF THE INVENTION The present invention relates to a three-phase one-piece gas circuit breaker, in which a plurality of main buses are connected to improve the maintenance and inspection performance of the disconnecting switch and the earthing switch and to reduce the size thereof. To a gas-insulated switchgear.
【０００２】[0002]
【従来の技術】一般に二重母線方式線路回路に仕様され
るガス絶縁開閉装置は、二重母線にそれぞれ母線側断路
器が遮断器密封容器の一方の側面に設けた絶縁スペーサ
を介して遮断器密封容器の同じ側面に設けた母線側保守
点検用接地開閉器に接続されている。この母線側保守点
検用接地開閉器は遮断部の一方の端子に接続され、他方
の端子は変流器に接続されている。変流器は遮断器密封
容器の同じ側面に設けた線路側保守点検用接地開閉器の
一方の端子に接続され、その端子は遮断器密封容器の他
方の側面に設けられた絶縁スペーサを介して電力ケーブ
ルに接続される。開閉器制御箱は各操作器の保守点検の
スペースのため、ガス絶縁開閉装置本体からそのスペー
サ分離れた所に設置している。2. Description of the Related Art A gas insulated switchgear generally used in a double bus type line circuit is provided with a circuit breaker through a double bus bar having a bus side disconnector provided on one side of a circuit breaker sealed container. It is connected to the earthing switch for maintenance and inspection on the busbar side provided on the same side of the sealed container. The earthing switch for maintenance and inspection on the bus side is connected to one terminal of the breaking unit, and the other terminal is connected to the current transformer. The current transformer is connected to one terminal of a line-side maintenance earthing switch provided on the same side of the circuit breaker enclosure, and the terminal is connected via an insulating spacer provided on the other side of the circuit breaker enclosure. Connected to power cable. The switchgear control box is installed at a place separated from the gas insulated switchgear body by a spacer for maintenance and inspection space of each operation device.
【０００３】このような、構成のものとして特開平2−4
6108号公報に記載のものがある。線路側断路器の操作器
は当該容器の側面に設置され、それぞれの操作器には、
保守点検用接地開閉器の操作器がそれぞれ隣接してい
る。ここで線路側保守点検用接地開閉器とその操作器を
連結するリンク機構は斜め構造となっている。又、例え
ば特開平3−139107 号公報に記載のものでは、しゃ断部
を収納したしゃ断容器を垂直に配置し、このしゃ断容器
に接続部を介して断路器を接続すると共にこの断路器の
垂直方向の上端部に計器用変圧器を配置し、下端部に避
雷器を配置した構成であった。 [0003] Japanese Patent Laid-Open Publication No.
There is one described in JP-A-6108. The operation device of the track side disconnector is installed on the side of the container, and each operation device has
The actuators of the earthing switch for maintenance and inspection are adjacent to each other. Here, the link mechanism for connecting the track-side maintenance grounding switch and its operating device has an oblique structure. Also,
For example, in the method described in JP-A-3-139107,
The cut-off container that houses the
Connected to the disconnector via the connection
An instrument transformer is located at the upper end in the vertical direction, and
It was a configuration with lightning arresters.
【０００４】[0004]
【発明が解決しようとする課題】このように、従来のガ
ス絶縁開閉装置では、変流器を遮断部の一端から接続導
体に嵌合させて配置する構成で、遮断部の上部に変流器
を配置するときは、遮断器密封容器の高さが大きくな
る。さらに遮断部の動作時アーク吹消による高温ガスの
影響で変流器の精度が低下する。それを防ぐため遮断器
密封容器径を大きくする必要があった。As described above, in the conventional gas insulated switchgear, the current transformer is arranged so as to be fitted to the connection conductor from one end of the cut-off portion. , The height of the circuit breaker sealed container increases. In addition, the accuracy of the current transformer is reduced due to the effect of the high-temperature gas due to the blowout of the arc during the operation of the cutoff unit. In order to prevent this, it was necessary to increase the diameter of the circuit breaker sealed container.
【０００５】そして、線路側保守点検用接地開閉器は高
い所に設置されており、またその操作リンク機構が斜め
構造であるため作業上調整が難しい。[0005] The grounding switch for maintenance and inspection on the track side is installed at a high place, and its operation link mechanism has an oblique structure, so that it is difficult to make adjustments in operation.
【０００６】さらに、開閉器制御箱がガス絶縁開閉装置
本体から離れているため、広い設置スペースを必要とす
る。Further, since the switch control box is separated from the gas-insulated switchgear main body, a large installation space is required.
【０００７】本発明の目的は、遮断器密封容器の小型
化，各操作器の保守点検性の向上と共に、設置スペース
の縮小を図ったガス絶縁開閉装置を提供することにあ
る。An object of the present invention, miniaturization of the breakers sealed container, along with the improvement of maintenance of the controllers is to provide a gas insulated switchgear which aimed at reduction of the installation space.
【０００８】[0008]
【課題を解決するための手段】本発明のガス絶縁開閉装
置は、上記目的を達成するために、母線側保守点検用接
地開閉器及び線路側保守点検用接地開閉器を並列に収納
した容器を遮断器密封容器の遮断部固定側端面に配置
し、遮断部可動子の動作方向と前記母線側及び線路側保
守点検用接地開閉器可動子の動作方向を平行にすると共
に、前記母線側断路器と各母線側保守点検用接地開閉器
の各操作器を開閉器制御箱に収納したことを特徴とす
る。In order to achieve the above object , a gas insulated switchgear according to the present invention has a bus-side maintenance and inspection device.
Ground switch and earthing switch for track side maintenance and inspection are stored in parallel.
Placed on the end face on the fixed side of the breaker of the circuit breaker sealed container
The operating direction of the breaker mover and the bus-side and track-side
When the moving direction of the earthing switch for
In addition, the bus-side disconnector and each bus-side maintenance and inspection grounding switch
Each operating device is stored in a switch control box .
【０００９】[0009]
【００１０】[0010]
【００１１】[0011]
【００１２】[0012]
【実施例】本発明を図１から図８に示す実施例について
説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the embodiments shown in FIGS.
【００１３】図１において、本発明のガス絶縁開閉装置
は、上下方向に配置された母線１，２は絶縁スペーサ１
１を介して遮断器密封容器１６内に縦方向に配置された
三相の遮断部６に接続されている。変流器７を絶縁スペ
ーサ１５を介して専用の変流器密封容器１７に配置し、
遮断部両端の各接地開閉器５ａ，８ａを並列に収納した
容器２５を遮断器密封容器１６の一端面に配置し、さら
に接地開閉器の可動子の動作方向を、遮断部可動子の動
作方向と平行にする。開閉器制御箱１４をガス絶縁開閉
装置本体ベース１８上に配置する。従って、遮断器密封
容器１６の高さと径が縮小され、変流器の測定精度が向
上する。また設置スペースが縮小でき、各保守点検用接
地開閉器本体の保守点検性が向上する。In FIG. 1, in a gas insulated switchgear according to the present invention, buses 1 and 2 arranged vertically are insulating spacers 1.
1 and arranged longitudinally in the circuit breaker enclosure 16
It is connected to a three-phase shutoff 6. The current transformer 7 is disposed in a dedicated current transformer sealed container 17 via an insulating spacer 15,
A container 25 accommodating the grounding switches 5a and 8a at both ends of the circuit breaker in parallel is arranged on one end surface of the circuit breaker sealed container 16, and the operation direction of the mover of the grounding switch is changed to the operation direction of the circuit breaker mover. And parallel. The switch control box 14 is arranged on a gas-insulated switchgear main body base 18. Accordingly, the height and diameter of the circuit breaker sealed container 16 are reduced, and the measurement accuracy of the current transformer is improved. In addition, the installation space can be reduced, and the maintenance and inspection performance of each earthing switch body for maintenance and inspection is improved.
【００１４】変流器７は、遮断器密封容器１６と反対側
端面で絶縁スペーサ１２を介して線路側断路器１９ａの
一方の端子に接続し、その端子に絶縁スペーサ２４を介
して線路側接地開閉器２０ａが接続し、電力ケーブル端
末２１を介して電力ケーブル２２に接続される構成にな
っている。ここで線路側断路器用操作器１９ｂと線路側
接地開閉器用操作器２０ｂは、変流器密封容器１７の下
部スペースに設置した操作器容器２３に収納する。従っ
て各操作器は低位置に設置出来、またベイ間隔も十分に
確保できるので保守点検作業性が向上する。The current transformer 7 is connected to one terminal of a line-side disconnector 19a via an insulating spacer 12 at an end surface opposite to the circuit breaker sealed container 16, and the terminal is connected to the line-side ground via an insulating spacer 24. The switch 20a is connected, and is connected to the power cable 22 via the power cable terminal 21. Here, the operation device 19b for the line-side disconnector and the operation device 20b for the line-side grounding switch are housed in an operation device container 23 installed in a space below the current transformer sealed container 17. Therefore, each operation device can be installed at a low position, and the bay interval can be sufficiently ensured, so that maintenance and inspection workability is improved.
【００１５】図２に示すように遮断部両端の各母線側断
路器用と保守点検用接地開閉器用操作器３ｂ，４ｂ，５
ｂ，８ｂは開閉器制御箱１４内に目の高さあたりに横一
列に配列する。そのため各保守点検用接地開閉器用と母
線側断路器用操作器の保守点検性が向上する。As shown in FIG. 2, the operation devices 3b, 4b, 5 for the bus disconnectors at both ends of the interrupting section and for the earthing switch for maintenance and inspection.
b and 8b are arranged in a horizontal line in the switch control box 14 around the eye level. As a result, the maintenance and inspection performance of the maintenance and inspection switches for the earthing switch and the bus-side disconnector is improved.
【００１６】図３に示すように各接地開閉器用操作器５
ｂ，８ｂと同じ高さで、遮断器密封容器１６の主母線
１，２が接続する側面と直交する両側面に、操作リンク
５ｄ，８ｄをそれぞれ回転可能に取り付け、その操作リ
ンク５ｄ，８ｄと各接地開閉器５ｂ，８ｂにそれぞれ設
置したリンク５ｃ，８ｃとをロッド５ｅ，８ｅをそれぞ
れ介して連結し、かつ操作リンク５ｄ，８ｄと開閉器制
御箱１４内の各接地開閉器用操作器５ｂ，８ｂとをそれ
ぞれ操作ロッド５ｆ，８ｆを介して接続するリンク機構
を有する、ここでロッド５ｅ，８ｅと操作ロッド５ｆ，
８ｆとはそれぞれ直交する位置にある。As shown in FIG. 3, each grounding switch operating device 5
The operation links 5d and 8d are rotatably mounted on both sides of the circuit breaker sealed container 16 at the same height as the b and 8b and orthogonal to the side to which the main buses 1 and 2 are connected. Links 5c, 8c respectively installed on the grounding switches 5b, 8b are connected via rods 5e, 8e, respectively, and the operating links 5d, 8d are connected to the grounding switch operating devices 5b, 8b in the switch control box 14. 8b are connected via operating rods 5f, 8f, respectively, where the rods 5e, 8e and the operating rods 5f, 5f are connected.
8f are at positions orthogonal to each other.
【００１７】また、開閉器制御箱１４の母線側の外面に
取り付けられた支持物３ｇ，４ｇに操作リンク３ｄ，４
ｄを開閉器制御箱１４内の断路器用操作器３ｂ，４ｂと
同じ高さで回転可能に取り付け、その操作リンク３ｄ，
４ｄと母線側断路器３ａ，４ａにそれぞれ設置したリン
ク３ｃ，４ｃとをロッド３ｅ，４ｅをそれぞれ介して連
結し、かつ操作リンク３ｄ，４ｄと開閉器制御箱１４内
の断路器操作器３ｂ，４ｂとを、それぞれ操作ロッド３
ｆ，４ｆを介して接続するリンク機構を有する。ここで
ロッド３ｅ，４ｅと操作ロッド３ｆ，４ｆとはそれぞれ
直交する位置にある。従って保守点検用接地開閉器と当
該操作器を連結するリンク機構の作業上の調整が容易に
なる。Operation links 3d, 4g are attached to supports 3g, 4g attached to the outer surface of the switch control box 14 on the busbar side.
d is rotatably mounted at the same height as the disconnector operating devices 3b and 4b in the switch control box 14, and the operation links 3d and
4d and the links 3c and 4c respectively installed on the bus-side disconnectors 3a and 4a are connected via rods 3e and 4e, respectively, and the operating links 3d and 4d are connected to the disconnector operating devices 3b and 3b in the switch control box 14. 4b and the operating rod 3
f, 4f. Here, the rods 3e, 4e and the operation rods 3f, 4f are located at orthogonal positions. Therefore, it becomes easy to adjust the operation of the link mechanism connecting the maintenance earthing switch and the operating device.
【００１８】図４に示すように、図１において電力ケー
ブル２２のかわりに外部ブッシング２６を接続する構成
も一般的に考えられる。線路側断路器１９ａ及び接地開
閉器２０ａはそれぞれ上下に配置される構成が考えられ
る。As shown in FIG. 4, a configuration in which an external bushing 26 is connected instead of the power cable 22 in FIG. 1 is generally considered. The line-side disconnector 19a and the grounding switch 20a may be arranged vertically.
【００１９】図５は、図１において線路側断路器用操作
器１９ｂ，接地開閉器用操作器20ｂも、母線側断路器用
操作器３ｂ，４ｂ，保守点検用接地開閉器用操作器５
ｂ，８ｂと同様に開閉器制御箱１４内に収納する例を示
す。この構成によると装置全体の縮小化と操作器の保守
点検性の向上がより一層図れる。FIG. 5 shows the operation of the line-side disconnector switch 19b and the grounding switch 20b in FIG. 1, the busbar-side disconnector switches 3b and 4b, and the maintenance and inspection ground switch 5.
An example is shown in which the switch is housed in the switch control box 14 similarly to FIGS. According to this configuration, it is possible to further reduce the size of the entire apparatus and to improve the maintenance and inspection of the operation device.
【００２０】図６は、図１において線路側断路器操作器
用操作器１９ｂ，接地開閉器用操作器２０ｂを密封容器
１６に近傍でかつ、変流器７と反対側に設置する例を示
す。この構成によると、ガス絶縁開閉装置の外回りから
各操作器の保守点検が可能である。FIG. 6 shows an example in which the operation device 19b for the line-side disconnector operation device and the operation device 20b for the grounding switch in FIG. 1 are installed near the sealed container 16 and on the side opposite to the current transformer 7. According to this configuration, maintenance and inspection of each operating device can be performed from the outer periphery of the gas insulated switchgear.
【００２１】図７は、図１において電力ケーブルを１回
線増設するときの構成を示す。図１では、電力ケーブル
１回線増設時に、線路側断路器のガス区画のガスを回収
せずに作業できる。FIG. 7 shows a configuration when one power cable is added in FIG. In FIG. 1, when one power cable is added, work can be performed without collecting gas in the gas section of the line-side disconnector.
【００２２】図８は、図１において遮断部を水平構造と
した例を示す。FIG. 8 shows an example in which the blocking portion in FIG. 1 has a horizontal structure.
【００２３】[0023]
【発明の効果】以上説明した本発明によれば、遮断器密
封容器の小型化，各操作器の保守点検性の向上と共に、
設置スペースの縮小を図ったガス絶縁開閉装置を得るこ
とができる。 According to the present invention described above, the circuit breaker
With the miniaturization of sealed containers and the improvement of maintenance and inspection of each operation device,
To obtain a gas insulated switchgear that reduces installation space
Can be.
【図１】本発明のガス絶縁開閉装置の一実施例を示す断
面図。FIG. 1 is a sectional view showing one embodiment of a gas insulated switchgear of the present invention.
【図２】図１の平面図。FIG. 2 is a plan view of FIG. 1;
【図３】図２の平面図。FIG. 3 is a plan view of FIG. 2;
【図４】本発明の第二の実施例を示す断面図。FIG. 4 is a sectional view showing a second embodiment of the present invention.
【図５】本発明の第三の実施例を示す断面図。FIG. 5 is a sectional view showing a third embodiment of the present invention.
【図６】本発明の第四の実施例を示す断面図。FIG. 6 is a sectional view showing a fourth embodiment of the present invention.
【図７】本発明の第五の実施例を示す断面図。FIG. 7 is a sectional view showing a fifth embodiment of the present invention.
【図８】本発明の第六の実施例を示す断面図。FIG. 8 is a sectional view showing a sixth embodiment of the present invention.
１，２…母線、３，４…母線側断路器、５…母線側保守
点検用接地開閉器、６…遮断部、７…変流器、８…線路
側保守点検用接地開閉器、１６…遮断器密封容器、１０
…電力ケーブル、１１，１２，１５，２４…絶縁スペー
サ、１３…遮断器用操作器、１４…開閉器制御箱、１７
…変流器密封容器、１８…ガス絶縁開閉装置ベース、１
９…線路側断路器、２０…線路側接地開閉器、２１…電
力ケーブル端末、２２…電力ケーブル、２３…操作器容
器、２５…保守点検用接地開閉器容器。1, 2, bus, 3, 4 bus-side disconnector, 5 bus-side ground switch for maintenance and inspection, 6 breaker, 7 current transformer, 8 road-side ground switch for maintenance, 16 Circuit breaker sealed container, 10
... power cable, 11, 12, 15, 24 ... insulating spacer, 13 ... breaker operating device, 14 ... switch control box, 17
... current transformer sealed container, 18 ... gas insulated switchgear base, 1
9: Track-side disconnector, 20: Track-side ground switch, 21: Power cable terminal, 22: Power cable, 23: Operator container, 25: Maintenance switch ground switch container.
フロントページの続き (72)発明者 中野 幸一 茨城県日立市国分町一丁目１番１号 株 式会社 日立製作所 国分工場内 (72)発明者 菊地 武広 茨城県日立市国分町一丁目１番１号 株 式会社 日立製作所 国分工場内 (56)参考文献 特開 平２−46108（ＪＰ，Ａ) 特開 平３−139107（ＪＰ，Ａ) 特開 昭63−87108（ＪＰ，Ａ) 特開 昭60−183904（ＪＰ，Ａ) 特開 平１−185107（ＪＰ，Ａ) 特開 平５−266765（ＪＰ，Ａ) 実開 平２−65016（ＪＰ，Ｕ) 特許2590264（ＪＰ，Ｂ２) 特公 平６−18447（ＪＰ，Ｂ２) 特公 平２−27883（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) H02B 13/035 - 13/075 H01H 33/42 Continued on the front page (72) Koichi Nakano 1-1-1, Kokubuncho, Hitachi City, Ibaraki Prefecture Inside the Kokubu Plant, Hitachi, Ltd. (72) Takehiro Kikuchi 1-1-1, Kokubuncho, Hitachi City, Ibaraki Prefecture In the Kokubu Plant of Hitachi, Ltd. (56) References JP-A-2-46108 (JP, A) JP-A-3-139107 (JP, A) JP-A-63-87108 (JP, A) JP-A-60 -183904 (JP, A) JP-A-1-185107 (JP, A) JP-A-5-266765 (JP, A) JP-A-2-65016 (JP, U) Patent 2590264 (JP, B2) 6-18447 (JP, B2) JP 2-27883 (JP, B2) (58) Fields investigated (Int. Cl. 7 , DB name) H02B 13/035-13/075 H01H 33/42
Claims (5)
収納する遮断部密封容器と、該遮断部密封容器の一側面
に絶縁スペーサを介して前記各相の遮断部の少なくとも
一方の端子と接続する母線側断路器と、前記各相の遮断
部の両端子に接続する母線側保守点検用接地開閉器及び
線路側保守点検用接地開閉器とを備えたガス絶縁開閉装
置において、 前記母線側保守点検用接地開閉器及び前記線路側保守点
検用接地開閉器を並列に収納した容器を前記遮断器密封
容器の遮断部固定側端面に配置し、前記遮断部可動子の
動作方向と前記母線側及び線路側保守点検用接地開閉器
可動子の動作方向を平行にすると共に、前記母線側断路
器と前記各母線側保守点検用接地開閉器の各操作器を開
閉器制御箱に収納したことを特徴とするガス絶縁開閉装
置。An insulating gas is sealed in the inside of the container, and at least one of the shut-off portions of the respective phases is provided on one side of the shut-off portion sealed container via an insulating spacer. A gas-insulating system comprising: a bus-side disconnector connected to a terminal of the bus, and a bus-side maintenance / inspection ground switch and / or a line-side maintenance / inspection ground switch connected to both terminals of the breaking unit of each phase. in switchgear, disposed container containing the bus side maintenance for the earth switch and the line-side maintenance grounding switch in parallel with the blocking element fixing side end surface of the breaker sealed container, wherein the blocking part mover The operation direction of the busbar and the track-side maintenance and inspection earthing switch is made parallel to the operation direction of the mover, and each operation of the busbar- side disconnector and each busbar- side maintenance and inspection earthing switch is performed. Gas opening, characterized in that the switch is housed in a switch control box. Apparatus.
制御箱に横一列に収納したガス絶縁開閉装置。2. A gas insulated switchgear according to claim 1, wherein said operation devices are housed in a line in a switch control box.
前記母線側断路器が接続する面と直交する方向の両面
に、それぞれ回転可能に取り付けた操作リンクと前記母
線側保守点検用接地開閉器及び前記線路側保守点検用接
地開閉器にそれぞれ設置したリンクをそれぞれロッドを
介して連結し、前記操作リンクを前記開閉器制御箱内に
前記操作器に操作ロッドを介して接続するリンク機構を
有し、前記操作リンクで接続される二つのロッドは直交
するガス絶縁開閉装置。3. An operation link rotatably mounted on both sides of the circuit breaker sealed container in a direction orthogonal to a plane to which the bus-side disconnector is connected, and a grounding switch for maintenance and inspection on the bus-side. And a link mechanism for connecting the links installed on the switch and the track-side maintenance grounding switch via a rod, respectively, and connecting the operating link to the operating device in the switch control box via the operating rod. A gas-insulated switchgear, wherein two rods connected by the operation link are orthogonal to each other.
主母線側と反対側の側面に変流器を収納する密封容器を
絶縁スペーサを介して連結するガス絶縁開閉装置。4. A gas insulated switchgear according to claim 1, wherein a sealed container accommodating a current transformer is connected to a side surface of the circuit breaker sealed container opposite to the main bus line via an insulating spacer.
密封容器と絶縁スペーサを介して前記遮断部とは反対側
に連結する密封容器を設け、その内部に線路側断路器と
線路側接地開閉器を配置するガス絶縁開閉装置。5. The method of claim 4, wherein the sealed container connected to the opposite side provided a sealed container for containing a current transformer and the blocking portion via an insulating spacer, and the line path side disconnector therein
Gas insulated switchgear to place a line path side grounding switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26333393A JP3175434B2 (en) | 1993-10-21 | 1993-10-21 | Gas insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26333393A JP3175434B2 (en) | 1993-10-21 | 1993-10-21 | Gas insulated switchgear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07123546A JPH07123546A (en) | 1995-05-12 |
| JP3175434B2 true JP3175434B2 (en) | 2001-06-11 |
Family
ID=17388023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26333393A Expired - Fee Related JP3175434B2 (en) | 1993-10-21 | 1993-10-21 | Gas insulated switchgear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3175434B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101708005B1 (en) | 2015-01-19 | 2017-02-17 | 소병수 | Dc overload and combined arc interruption device |
| US10793005B2 (en) | 2016-09-13 | 2020-10-06 | Robert Bosch Gmbh | Method for operating a safety device |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3256836B2 (en) * | 1996-09-02 | 2002-02-18 | 株式会社日立製作所 | Gas insulated switchgear |
| JP4829021B2 (en) * | 2006-07-12 | 2011-11-30 | 株式会社東芝 | Gas insulated switchgear |
| JP4795219B2 (en) * | 2006-12-15 | 2011-10-19 | 株式会社日本Ａｅパワーシステムズ | Gas insulated switchgear |
| JP2008283772A (en) * | 2007-05-09 | 2008-11-20 | Toshiba Corp | Gas-insulated switchgear |
| JP5591721B2 (en) * | 2011-01-05 | 2014-09-17 | 株式会社東芝 | Gas insulated switchgear |
| KR101145085B1 (en) * | 2011-01-18 | 2012-05-11 | 현대중공업 주식회사 | Gas insulated switchgear |
| JP6236240B2 (en) * | 2013-07-23 | 2017-11-22 | 株式会社東芝 | Gas circuit breaker |
| JP7237868B2 (en) * | 2020-01-31 | 2023-03-13 | 株式会社東芝 | gas insulated switchgear |
| WO2023188346A1 (en) * | 2022-03-31 | 2023-10-05 | 三菱電機株式会社 | Gas-insulated switchgear |
-
1993
- 1993-10-21 JP JP26333393A patent/JP3175434B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101708005B1 (en) | 2015-01-19 | 2017-02-17 | 소병수 | Dc overload and combined arc interruption device |
| US10793005B2 (en) | 2016-09-13 | 2020-10-06 | Robert Bosch Gmbh | Method for operating a safety device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07123546A (en) | 1995-05-12 |
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