JP4146540B2 - Transformer integrated gas insulated switchgear - Google Patents

Transformer integrated gas insulated switchgear Download PDF

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Publication number
JP4146540B2
JP4146540B2 JP04682298A JP4682298A JP4146540B2 JP 4146540 B2 JP4146540 B2 JP 4146540B2 JP 04682298 A JP04682298 A JP 04682298A JP 4682298 A JP4682298 A JP 4682298A JP 4146540 B2 JP4146540 B2 JP 4146540B2
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JP
Japan
Prior art keywords
transformer
insulated switchgear
gas
circuit breaker
gas insulated
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
Application number
JP04682298A
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Japanese (ja)
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JPH11252723A (en
Inventor
信義 滝浦
英明 佐藤
誠 大▲崎▼
誠二 川崎
雄一 西村
覚 福田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chugoku Electric Power Co Inc
Hitachi Ltd
Chugoku Electric Manufacturing Co Ltd
Original Assignee
Chugoku Electric Power Co Inc
Hitachi Ltd
Chugoku Electric Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to JP04682298A priority Critical patent/JP4146540B2/en
Priority to KR1019990006020A priority patent/KR19990072876A/en
Publication of JPH11252723A publication Critical patent/JPH11252723A/en
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Publication of JP4146540B2 publication Critical patent/JP4146540B2/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • 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
    • H02B13/0352—Gas-insulated switchgear for three phase switchgear
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B5/00—Non-enclosed substations; Substations with enclosed and non-enclosed equipment
    • H02B5/06—Non-enclosed substations; Substations with enclosed and non-enclosed equipment gas-insulated

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は変圧器一体形ガス絶縁開閉装置に係り、特に、変圧器とガス絶縁開閉装置を接続母線により直接接続した変電設備用に好適な変圧器一体形ガス絶縁開閉装置に関する。
【０００２】
【従来の技術】
従来の変電設備用のガス絶縁開閉装置と変圧器は、電気協同研究第３９巻第６号第５９頁「ガス絶縁開閉装置の標準化」のＩ−７図等に示すように、ガス絶縁開閉装置と変圧器をそれぞれ別の独立した基礎に設置し、ガス絶縁開閉装置と変圧器を水平に配置していた。
【０００３】
【発明が解決しようとする課題】
上述したように、ガス絶縁開閉装置と変圧器を独立した別の基礎に設置するとそれぞれに据え付けスペースが必要になり、敷地面積が大きくなると言う問題があった。このため、都市近郊部や山間部等に設置する場合、土地の確保と造成に苦慮していた。
【０００４】
本発明の目的は、敷地面積を小さくすることのできる変圧器一体形ガス絶縁開閉装置を提供することにある。
【０００５】
【課題を解決するための手段】
本発明の変圧器一体形ガス絶縁開閉装置は、上記目的を達成するために、変圧器と、該変圧器の上面に設置され、遮断器，断路器，ブッシング、前記変圧器と遮断器を接続する第１の接続母線及び前記遮断器とブッシングを断路器を介して接続する第２の接続母線から成るガス絶縁開閉装置とを備え、前記遮断器は、その軸線が水平に配置された横型であり、前記第１の接続母線及び第２の接続母線は、共に前記遮断器の軸線に平行で、かつ前記遮断器を挟んで上下に重なって配置されていると共に、前記第１の接続母線の一端は下方に伸びて前記変圧器の上面側に設けられた引き出し口に接続され、他端は上方に伸び前記横型遮断器の一端に接続され、かつ前記第２の接続母線の一端は前記断路器を介して前記横型遮断器の他端に接続され、他端は前記ブッシングに接続され、更に前記第１の接続母線は、該第１の接続母線の軸線に対して垂直に配置された絶縁スペーサを有することを特徴とする。
【０００６】
【発明の実施の形態】
以下、本発明の一実施例を図１から図５によって説明する。図１は、本実施例を示す変圧器一体形ガス絶縁開閉装置の正面図、図２は、図１の矢視Ａ−Ａから見た側面図、図３は、図２の内部構造を示す縦断面図、図４は、本実施例の変形例を示す側面図、図５は、本実施例の変形例である変圧器一体形ガス絶縁開閉装置の内部構造を示す縦断面図である。
【０００７】
本実施例の変圧器一体形ガス絶縁開閉装置は、下方側に設けられた変圧器１の上部にガス絶縁開閉装置２を設置している。変圧器１の上部には三相ほぼ平行に主回路引き出し口１０，１１，１２とガス絶縁開閉装置２を固定するための固定座１３を設けている。引き出し口１０，１１，１２には油−ガスブッシング９を取り付け、油−ガスブッシング９の上部には横方向に分岐した接続母線８を接続している。接続母線８は遮断器６の下部に接続された横方向に分岐した接続母線７に絶縁スペーサ２１を介して接続している。遮断器６は変圧器１の上面とほぼ平行となるように水平方向に配置され、遮断器６上部は接地開閉器５，断路器４を介して遮断器６とほぼ平行に配置された接続母線２０が絶縁スペーサ２２を介して接続されている。接続母線２０の上方には変流器１９を介してガスブッシング３が接続されており、ガスブッシング３は送電線１４に接続され、外部からの電力はガス絶縁開閉装置２を介して変圧器１に供給される。このように、ガス絶縁開閉装置２は、ガスブッシング３，断路器４，接地開閉器５，遮断器６，接続母線７，８より構成されている。このガス絶縁開閉装置２は、架台１５により変圧器１の固定座１３に固定されている。
【０００８】
本実施例では、このように変圧器１の上部空きスペースにガス絶縁開閉装置２を設置しているので、ガス絶縁開閉装置２用の基礎及び据付用敷地が不要になり、変電所の敷地面積を縮小できる。また、遮断器６の上部に水平方向に接続母線２０を接続しているので、ブッシング３の引き出し方向を任意に変更できる。図４に示す例では、変圧器１の側面側に架台１５を設け、接続母線２０を図１に示す方向とは反対方向に設け、ブッシング３を図１に示す方向とは反対方向に設けている。
【０００９】
図５は、本実施例の変形例である変圧器一体形ガス絶縁開閉装置の内部構造を示す縦断面図である。この例では、変圧器１とガス絶縁開閉装置２の間を油−ガススペーサ１６により接続している。油−ガススペーサ１６は、油−ガスブッシング９に比べ非常に軽量であるので、耐震性能が向上する。
【００１０】
本実施例による変圧器一体形ガス絶縁開閉装置は変圧器の据え付けスペースに変圧器とガス絶縁開閉装置の両方を設置でき、敷地面積の縮小化及び造成作業の軽減等で従来より大幅なコストダウンを図ることができる。
【００１１】
図６は、本実施例の他の変形例である変圧器一体形ガス絶縁開閉装置の内部構造を示す縦断面図である。この例では、油−ガススペーサ１６を接続母線７，８間に取り付けたものである。このように、図５，図６に示す油−ガススペーサ１６の取付位置は、遮断器６の真下に水平配置してないため、遮断器６動作時分解生成物等の異物が発生しても、油−ガススペーサの表面に有害な状態に積もることがない。
【００１２】
図７は、ガス絶縁開閉装置２の主回路を一つの容器に収納した、いわゆる三相一括形ガス絶縁開閉装置を適用した場合の変圧器一体形ガス絶縁開閉装置の正面図である。本実施例では、引き出し口１０を三相一括形とし、変圧器１の側方に集中して設けている。引き出し口１０は、油ーガススペーサ１６を介して三相一括形の接続母線８に接続され、その側方に設置された三相一括形の遮断器６に接続されている。遮断器６の上方には、断路器４，接地開閉器５が設置されている。この断路器４，接地開閉器５は接続母線により、三相それぞれに分けられて変流器１９を介して三相のブッシング３に接続され、さらに送電線１４に接続されている。これらのブッシング３は、変圧器１の固定座１３に取り付けられた架台１５により支持されている。
【００１３】
このように、接続母線８，遮断器６等を三相一括形とすることにより、変圧器１の上に設置するガス絶縁開閉装置２の構成を簡略化でき、又、変圧器１の中央側に重量部分を設置することができるので、耐振性がよい。
【００１４】
図８は、ブッシング３をケーブル引き出しにした場合の変圧器一体形ガス絶縁開閉装置の側面図である。この例では、ブッシング３は別置きにし、ケーブル引き出しによりブッシング３に接続している。このように構成することにより、ガス絶縁開閉装置の重量を低減することができる。
【００１６】
以上説明したように、各実施例のように構成することにより、変圧器１の上部空きスペースにガス絶縁開閉装置２を設置することができ、ガス絶縁開閉装置２用の基礎及び据付用敷地が不要になる。このため、山岳部等に設置する場合の敷地の確保と造成作業が容易になるばかりでなく、従来、屋内設置の場合、ガス絶縁開閉装置と変圧器をそれぞれ別の階に設置していたものを、変圧器１階分に両方を設置することが可能である。
【００１７】
【発明の効果】
以上説明したように本発明によれば、変圧器とガス絶縁開閉装置を接続する構成の変電設備の場合、変圧器の上部スペースにガス絶縁開閉装置の設置を可能な構造の変圧器一体形ガス絶縁開閉装置にしたので、変圧器の据え付けスペースに変圧器とガス絶縁開閉装置の両方を設置可能にでき、変電所の敷地を大幅に縮小できる。
【図面の簡単な説明】
【図１】本発明の一実施例である変圧器一体形ガス絶縁開閉装置の正面図である。
【図２】図１の矢視Ａ−Ａから見た側面図である。
【図３】図２の内部構造を示す縦断面図である。
【図４】本実施例の変形例を示す側面図である。
【図５】本実施例の変形例である変圧器一体形ガス絶縁開閉装置の内部構造を示す縦断面図である。
【図６】本実施例の他の変形例である変圧器一体形ガス絶縁開閉装置の内部構造を示す縦断面図である。
【図７】本発明の他の実施例を示す正面図である。
【図８】本発明の他の実施例を示す側面図である。
【符号の説明】
１…変圧器、２…ガス絶縁開閉装置、３…ガスブッシング、４…断路器、５…接地開閉器、６…遮断器、７，８…接続母線、９…油−ガスブッシング、１０，１１，１２…引き出し口、１３…固定座、１４…送電線、１５…架台、１６…油−ガススペーサ、１７…ケーブルヘッド、１８…電力ケーブル、１９…変流器、２０…接続母線、２１，２２…絶縁スペーサ。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to transformers integrated type gas-insulated switchgear, in particular, relates to suitable transformers integrated type gas-insulated switchgear for substation facilities directly connected by a connection bus transformer and gas insulated switchgear.
[0002]
[Prior art]
The conventional gas-insulated switchgear and transformer for substation equipment are shown in Fig. I-7 in "Standardization of gas-insulated switchgear", Vol. 39, No. 6, p. And transformers were installed on separate independent foundations, and the gas-insulated switchgear and transformer were placed horizontally.
[0003]
[Problems to be solved by the invention]
As described above, when the gas-insulated switchgear and the transformer are installed on different independent foundations, there is a problem that installation space is required for each and the site area is increased. For this reason, when it was installed in suburban areas or mountainous areas, it was difficult to secure and create land.
[0004]
An object of the present invention is to provide a transformer-integrated gas insulated switchgear capable of reducing the site area.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a transformer-integrated gas insulated switchgear according to the present invention is installed on a top surface of a transformer and the transformer, and a circuit breaker, a disconnector, a bushing , and connects the transformer and the circuit breaker. A gas-insulated switchgear comprising a first connection bus and a second connection bus for connecting the circuit breaker and the bushing via a disconnector, and the circuit breaker is a horizontal type whose axis is disposed horizontally. And the first connection bus and the second connection bus are both parallel to the axis of the circuit breaker and arranged vertically with the circuit breaker sandwiched therebetween, and the first connection bus One end extends downward and is connected to an outlet provided on the upper surface side of the transformer, the other end extends upward and is connected to one end of the horizontal circuit breaker, and one end of the second connection busbar is the disconnection Connected to the other end of the horizontal circuit breaker via The other end is connected to the bushing, further said first connection bus is characterized by having an insulating spacer disposed perpendicularly to said first connection bus of the axis.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to FIGS. 1 is a front view of a transformer-integrated gas-insulated switchgear according to the present embodiment, FIG. 2 is a side view as viewed from the direction of arrows AA in FIG. 1, and FIG. 3 is an internal structure of FIG. FIG. 4 is a side view showing a modified example of this embodiment, and FIG. 5 is a longitudinal sectional view showing an internal structure of a transformer-integrated gas insulated switchgear which is a modified example of this embodiment.
[0007]
In the transformer-integrated gas insulated switchgear according to the present embodiment, a gas insulated switchgear 2 is installed on the upper part of the transformer 1 provided on the lower side. A fixed seat 13 for fixing the main circuit outlets 10, 11, 12 and the gas insulated switchgear 2 is provided in the upper part of the transformer 1 in almost three phases. An oil-gas bushing 9 is attached to the outlets 10, 11, and 12, and a connection bus 8 that branches in the horizontal direction is connected to an upper portion of the oil-gas bushing 9. The connection bus 8 is connected to the connection bus 7 branched in the lateral direction connected to the lower part of the circuit breaker 6 via an insulating spacer 21. The circuit breaker 6 is arranged in a horizontal direction so as to be substantially parallel to the upper surface of the transformer 1, and the upper part of the circuit breaker 6 is connected via a grounding switch 5 and a disconnecting switch 4 and is connected to a bus connected to the circuit breaker 6. 20 are connected via an insulating spacer 22. A gas bushing 3 is connected above the connection bus 20 via a current transformer 19, the gas bushing 3 is connected to a power transmission line 14, and electric power from the outside passes through the gas insulated switchgear 2 to the transformer 1. To be supplied. Thus, the gas insulated switchgear 2 is composed of the gas bushing 3, the disconnect switch 4, the ground switch 5, the circuit breaker 6, and the connection buses 7 and 8. The gas insulated switchgear 2 is fixed to a fixed seat 13 of the transformer 1 by a gantry 15.
[0008]
In this embodiment, since the gas insulated switchgear 2 is installed in the space above the transformer 1 in this way, the foundation for the gas insulated switchgear 2 and the installation site are not required, and the site area of the substation Can be reduced. Moreover, since the connection bus 20 is connected to the upper part of the circuit breaker 6 in the horizontal direction, the pulling-out direction of the bushing 3 can be arbitrarily changed. In the example shown in FIG. 4, the mount 15 is provided on the side surface side of the transformer 1, the connection bus 20 is provided in the direction opposite to the direction shown in FIG. 1, and the bushing 3 is provided in the direction opposite to the direction shown in FIG. Yes.
[0009]
FIG. 5 is a longitudinal sectional view showing the internal structure of a transformer-integrated gas insulated switchgear that is a modification of the present embodiment. In this example, the transformer 1 and the gas insulated switchgear 2 are connected by an oil-gas spacer 16. Since the oil-gas spacer 16 is much lighter than the oil-gas bushing 9, the seismic performance is improved.
[0010]
The transformer-integrated gas-insulated switchgear according to this embodiment can install both the transformer and the gas-insulated switchgear in the transformer installation space, significantly reducing costs by reducing the site area and reducing construction work. Can be achieved.
[0011]
FIG. 6 is a longitudinal sectional view showing an internal structure of a transformer-integrated gas insulated switchgear which is another modification of the present embodiment. In this example, an oil-gas spacer 16 is attached between the connection buses 7 and 8. As described above, the mounting position of the oil-gas spacer 16 shown in FIG. 5 and FIG. 6 is not horizontally disposed directly under the circuit breaker 6, so that foreign matter such as decomposition products during operation of the circuit breaker 6 is generated. It does not accumulate in a harmful state on the surface of the oil-gas spacer.
[0012]
FIG. 7 is a front view of a transformer-integrated gas insulated switchgear when a so-called three-phase collective gas insulated switchgear in which the main circuit of the gas insulated switchgear 2 is housed in one container is applied. In the present embodiment, the outlet 10 is a three-phase collective type and is concentrated on the side of the transformer 1. The lead-out port 10 is connected to a three-phase collective connecting bus 8 via an oil-gas spacer 16 and is connected to a three-phase collective circuit breaker 6 installed on the side thereof. Above the circuit breaker 6, a disconnect switch 4 and a ground switch 5 are installed. The disconnect switch 4 and the ground switch 5 are divided into three phases by connecting buses, connected to the three-phase bushing 3 via the current transformer 19, and further connected to the power transmission line 14. These bushings 3 are supported by a gantry 15 attached to a fixed seat 13 of the transformer 1.
[0013]
Thus, the configuration of the gas-insulated switchgear 2 installed on the transformer 1 can be simplified by forming the connection bus 8, the circuit breaker 6 and the like into a three-phase package, and the center side of the transformer 1 can be simplified. Since a heavy weight part can be installed in this, vibration resistance is good.
[0014]
FIG. 8 is a side view of the transformer-integrated gas insulated switchgear when the bushing 3 is a cable drawer. In this example, the bushing 3 is placed separately and connected to the bushing 3 by cable drawing. By comprising in this way, the weight of a gas insulated switchgear can be reduced.
[0016]
As described above, by configuring as in each embodiment, the gas insulated switchgear 2 can be installed in the empty space above the transformer 1, and the foundation and installation site for the gas insulated switchgear 2 are provided. It becomes unnecessary. For this reason, it is not only easy to secure and create a site for installation in mountainous areas, etc., but in the past, in the case of indoor installation, gas insulated switchgear and transformer were installed on separate floors It is possible to install both on the first floor of the transformer.
[0017]
【The invention's effect】
As described above, according to the present invention, in the case of a substation facility configured to connect a transformer and a gas-insulated switchgear, a transformer-integrated gas having a structure in which the gas-insulated switchgear can be installed in the upper space of the transformer. Since it is an insulated switchgear, it is possible to install both a transformer and a gas-insulated switchgear in the transformer installation space, greatly reducing the size of the substation site.
[Brief description of the drawings]
FIG. 1 is a front view of a transformer-integrated gas insulated switchgear according to an embodiment of the present invention.
FIG. 2 is a side view seen from the arrow AA in FIG.
FIG. 3 is a longitudinal sectional view showing the internal structure of FIG.
FIG. 4 is a side view showing a modification of the embodiment.
FIG. 5 is a longitudinal sectional view showing the internal structure of a transformer-integrated gas insulated switchgear that is a modification of the embodiment.
FIG. 6 is a longitudinal sectional view showing an internal structure of a transformer-integrated gas insulated switchgear which is another modification of the embodiment.
FIG. 7 is a front view showing another embodiment of the present invention.
FIG. 8 is a side view showing another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Transformer, 2 ... Gas insulation switchgear, 3 ... Gas bushing, 4 ... Disconnector, 5 ... Grounding switch, 6 ... Circuit breaker, 7, 8 ... Connection bus-bar, 9 ... Oil-gas bushing, 10, 11 , 12 ... Drawer port, 13 ... Fixed seat, 14 ... Power transmission line, 15 ... Mount, 16 ... Oil-gas spacer, 17 ... Cable head, 18 ... Power cable, 19 ... Current transformer, 20 ... Connection bus, 21, 22: Insulating spacer.

Claims (2)

変圧器と、該変圧器の上面に設置され、遮断器，断路器，ブッシング、前記変圧器と遮断器を接続する第１の接続母線及び前記遮断器とブッシングを断路器を介して接続する第２の接続母線から成るガス絶縁開閉装置とを備え、
前記遮断器は、その軸線が水平に配置された横型であり、前記第１の接続母線及び第２の接続母線は、共に前記遮断器の軸線に平行で、かつ前記遮断器を挟んで上下に重なって配置されていると共に、前記第１の接続母線の一端は下方に伸びて前記変圧器の上面側に設けられた引き出し口に接続され、他端は上方に伸び前記横型遮断器の一端に接続され、かつ前記第２の接続母線の一端は前記断路器を介して前記横型遮断器の他端に接続され、他端は前記ブッシングに接続され、更に前記第１の接続母線は、該第１の接続母線の軸線に対して垂直に配置された絶縁スペーサを有することを特徴とする変圧器一体形ガス絶縁開閉装置。A transformer, a breaker, a disconnector, a bushing , a first connection bus connecting the transformer and the breaker, and a breaker and the bushing connected via the disconnector; A gas insulated switchgear comprising two connecting busbars ,
The circuit breaker is a horizontal type whose axis is horizontally disposed, and the first connection bus and the second connection bus are both parallel to the axis of the circuit breaker and vertically with the circuit breaker interposed therebetween. The one end of the first connecting bus extends downward and is connected to a drawer opening provided on the upper surface side of the transformer, and the other end extends upward and is connected to one end of the horizontal circuit breaker. And one end of the second connection bus is connected to the other end of the horizontal circuit breaker via the disconnector, the other end is connected to the bushing, and the first connection bus is A transformer-integrated gas insulated switchgear comprising an insulating spacer arranged perpendicular to the axis of one connecting bus . 請求項１に記載の変圧器一体形ガス絶縁開閉装置において、
前記第１の接続母線と前記変圧器の引き出し口が、油‐ガスブッシング若しくは油−ガススペーサを介して接続されていることを特徴とする変圧器一体形ガス絶縁開閉装置。The transformer-integrated gas insulated switchgear according to claim 1,
The transformer-integrated gas insulated switchgear characterized in that the first connecting bus and the outlet of the transformer are connected via an oil-gas bushing or an oil-gas spacer.
JP04682298A 1998-02-27 1998-02-27 Transformer integrated gas insulated switchgear Expired - Lifetime JP4146540B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP04682298A JP4146540B2 (en) 1998-02-27 1998-02-27 Transformer integrated gas insulated switchgear
KR1019990006020A KR19990072876A (en) 1998-02-27 1999-02-24 Transformer-incorporating type gas insulated switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04682298A JP4146540B2 (en) 1998-02-27 1998-02-27 Transformer integrated gas insulated switchgear

Publications (2)

Publication Number Publication Date
JPH11252723A JPH11252723A (en) 1999-09-17
JP4146540B2 true JP4146540B2 (en) 2008-09-10

Family

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JP04682298A Expired - Lifetime JP4146540B2 (en) 1998-02-27 1998-02-27 Transformer integrated gas insulated switchgear

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Country Link
JP (1) JP4146540B2 (en)
KR (1) KR19990072876A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105552770A (en) * 2016-02-03 2016-05-04 国家电网公司 Connection body between high-voltage sleeve pipe of transformer and gas insulated switchgear (GIS) device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103326272B (en) * 2013-05-30 2016-04-27 国家电网公司 A kind of composite type high-voltage combined electrical apparatus and monopolar configuration thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105552770A (en) * 2016-02-03 2016-05-04 国家电网公司 Connection body between high-voltage sleeve pipe of transformer and gas insulated switchgear (GIS) device

Also Published As

Publication number Publication date
JPH11252723A (en) 1999-09-17
KR19990072876A (en) 1999-09-27

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