JP4272088B2 - Gas insulated switchgear - Google Patents

Gas insulated switchgear Download PDF

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JP4272088B2
JP4272088B2 JP2004065135A JP2004065135A JP4272088B2 JP 4272088 B2 JP4272088 B2 JP 4272088B2 JP 2004065135 A JP2004065135 A JP 2004065135A JP 2004065135 A JP2004065135 A JP 2004065135A JP 4272088 B2 JP4272088 B2 JP 4272088B2
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unit
current transformer
current
bus
insulated switchgear
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JP2005261004A5 (en
JP2005261004A (en
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宣行 高尾
順三 木田
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Japan AE Power Systems Corp
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Priority to TW094100733A priority patent/TW200603508A/en
Priority to CNB2005100075738A priority patent/CN1331285C/en
Priority to KR1020050013299A priority patent/KR101109065B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K29/00—Combinations of writing implements with other articles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H39/00—Devices for locating or stimulating specific reflex points of the body for physical therapy, e.g. acupuncture
    • A61H39/04—Devices for pressing such points, e.g. Shiatsu or Acupressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
    • B43K23/08—Protecting means, e.g. caps

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  • Health & Medical Sciences (AREA)
  • Rehabilitation Therapy (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Gas-Insulated Switchgears (AREA)

Description

本発明は、ガス絶縁開閉装置に関する。   The present invention relates to a gas insulated switchgear.

ガス絶縁開閉装置（以下、ＧＩＳと記載する）は、ＳＦ６ガス等の絶縁ガスを密封容器に封入して、その中に遮断器、変流器、更には開閉器などの各種の電気機器を収納して構成される。通常のＧＩＳは、各種の電気機器が複数のユニットに分けられ、ユニットごとに、絶縁ガスが封入された容器に収納されている。 A gas insulated switchgear (hereinafter referred to as GIS) encloses an insulating gas such as SF 6 gas in a hermetically sealed container and contains various electrical devices such as a circuit breaker, a current transformer, and a switch. Contained and stored. In a normal GIS, various electric devices are divided into a plurality of units, and each unit is stored in a container filled with an insulating gas.

一般のＧＩＳでは、電力系統の主回路電流計測のために、遮断器ユニットの両側に変流器ユニットが設けられる。また、各変流器ユニットには、通常、複数個の変流器が備えられ、電流通路となる導体が、これらの変流器のコイル内を貫通するように設けられる。   In a general GIS, a current transformer unit is provided on both sides of a circuit breaker unit in order to measure a main circuit current of a power system. Each current transformer unit is usually provided with a plurality of current transformers, and a conductor serving as a current path is provided so as to penetrate through the coils of these current transformers.

ＧＩＳにおける変流器ユニットの設置例としては、母線側変流器ユニットを、遮断器ユニットの上部に設置したものがある（例えば、特許文献１参照）。   As an installation example of the current transformer unit in the GIS, there is one in which the bus-side current transformer unit is installed on the upper part of the circuit breaker unit (for example, see Patent Document 1).

特開２０００−１２５４２６号公報（特許請求の範囲、図１）JP 2000-125426 A (Claims, FIG. 1)

変流器の仕様、個数は保護リレーの要求により様々であり、このため、設置される変流器ユニットは、変流器用導体方向の全長がケース毎に大きく異なる。母線側変流器ユニットを、遮断器ユニットの上部の高さ方向に設置しているものは、この部分の高さが非常に高くなる。母線側変流器ユニットを、遮断器ユニットの上部の高さ方向に配置せずに、母線ユニットと遮断器ユニットの間に配置したものは、ＧＩＳの全長が長くなる。   The specifications and number of current transformers vary depending on the requirements of the protection relay. For this reason, the total length of the current transformer units installed in the direction of the current transformer conductor varies greatly from case to case. When the bus-side current transformer unit is installed in the height direction of the upper part of the circuit breaker unit, the height of this portion is very high. If the bus-side current transformer unit is arranged between the bus-bar unit and the circuit breaker unit without being arranged in the height direction of the upper part of the circuit breaker unit, the total length of the GIS is increased.

ＧＩＳは、屋内や地下に設置される場合が多く、コンパクトな構造が望まれる。しかし、従来のＧＩＳの構成では、ＧＩＳに占める変流器ユニットの容積が大きく、ＧＩＳが大きくなっていた。   GIS is often installed indoors or underground, and a compact structure is desired. However, in the conventional GIS configuration, the volume of the current transformer unit in the GIS is large, and the GIS is large.

本発明における、解決しようとする課題は、全体をコンパクトにできるＧＩＳを提供することにある。   The problem to be solved in the present invention is to provide a GIS that can be made compact as a whole.

本発明は、遮断器ユニットを挟んで、一方の側に第一変流器ユニットを備え、他方の側に第二変流器ユニットを備えたＧＩＳにおいて、前記遮断器ユニットの一方の側に、前記第一変流器ユニットと前記第二変流器ユニットを配置したものである。   In the GIS having a first current transformer unit on one side and a second current transformer unit on the other side across the circuit breaker unit, the one side of the circuit breaker unit is The first current transformer unit and the second current transformer unit are arranged.

また、母線ユニットと遮断器ユニットの間に第一変流器ユニットを備え、前記遮断器ユニットと線路ユニットの間に第二変流器ユニットを備えたＧＩＳにおいて、前記遮断器ユニットの一方の側に、前記第一変流器ユニットと前記第二変流器ユニットの両方を配置したものである。この場合、母線ユニットの反対側に、第一変流器ユニットと第二変流器ユニットの両方を配置することが特に好ましい。また、第一変流器ユニットと第二変流器ユニットは、いずれも横向きに配置することが好ましい。   In the GIS having a first current transformer unit between the busbar unit and the circuit breaker unit, and having a second current transformer unit between the circuit breaker unit and the line unit, one side of the circuit breaker unit In addition, both the first current transformer unit and the second current transformer unit are arranged. In this case, it is particularly preferable to arrange both the first current transformer unit and the second current transformer unit on the opposite side of the bus bar unit. Moreover, it is preferable to arrange | position both a 1st current transformer unit and a 2nd current transformer unit sideways.

また、２つの母線ユニットを結ぶ線路に設けられ、一方の母線ユニットと遮断器ユニットの間に第一変流器ユニットが備えられ、他方の母線ユニットと前記遮断器ユニットの間に第二変流器ユニットが備えられているＧＩＳにおいて、前記第一変流器ユニットと前記第二変流器ユニットの両方を、前記遮断器ユニットの一方の側に配置したものである。このＧＩＳの場合、２つの母線ユニットを遮断器ユニットの同一側面に併置し、２つの母線ユニットと対向した遮断器ユニットの側面、要するに２つの母線ユニットと遮断器ユニットとの間に、２つの変流器ユニットを配置することが特に好ましい。   In addition, a first current transformer unit is provided between the one bus unit and the circuit breaker unit, and a second current transformer is provided between the other bus unit and the circuit breaker unit. In the GIS provided with a current transformer unit, both the first current transformer unit and the second current transformer unit are arranged on one side of the circuit breaker unit. In this GIS, two busbar units are juxtaposed on the same side of the circuit breaker unit, and the two sidebars of the circuit breaker unit facing the two busbar units, that is, between the two busbar units and the circuit breaker unit, It is particularly preferred to arrange a flow unit.

本発明は、遮断器ユニットを中心にして、その両側に、それぞれ変流器ユニットを備えたＧＩＳにおいて、全ての変流器ユニットを、遮断器ユニットの一方の側に、まとめて配置したものである。これにより、ＧＩＳに占める変流器ユニットの容積を小さくでき、ＧＩＳをコンパクトな構造にすることができた。   In the GIS having a current transformer unit on both sides of the circuit breaker unit as a center, the present invention arranges all the current transformer units together on one side of the circuit breaker unit. is there. As a result, the volume of the current transformer unit in the GIS can be reduced, and the GIS can be made compact.

以下、本発明のＧＩＳの実施例を、図面を引用して説明する。ただし、本発明は、これらの実施例に限定されない。   Embodiments of the GIS of the present invention will be described below with reference to the drawings. However, the present invention is not limited to these examples.

図２は、本実施例によるＧＩＳの回路構成図の一例を示している。図２において、第一母線導体４０２から分岐して設けられた母線用接地断路器４０１と、第二母線導体５０２から分岐して設けられた母線用接地断路器５０１を、それぞれ介して、１本の線路が接続されている。この線路に、母線側変流器である第一の変流器１０１、遮断部３０１、線路側変流器である第二の変流器２０１、線路用接地断路器６０１、接地開閉器６０４が設けられている。また、計器用変圧器６０３およびケーブルヘッド６０２が接続されている。本実施例のＧＩＳは、変流器１０１、遮断部３０１、変流器２０１、線路用接地断路器６０１、接地開閉器６０４、計器用変圧器６０３およびケーブルヘッド６０２を含めて構成される。   FIG. 2 shows an example of a circuit configuration diagram of the GIS according to the present embodiment. In FIG. 2, a bus ground disconnecting switch 401 provided by branching from the first bus conductor 402 and a bus ground disconnecting switch 501 provided by branching from the second bus conductor 502 are respectively provided. Are connected. On this line, there are a first current transformer 101 that is a bus-side current transformer, a breaker 301, a second current transformer 201 that is a line-side current transformer, a grounding disconnecting switch 601 for a line, and a grounding switch 604. Is provided. In addition, an instrument transformer 603 and a cable head 602 are connected. The GIS according to the present embodiment includes a current transformer 101, a breaker 301, a current transformer 201, a line ground disconnect switch 601, a ground switch 604, an instrument transformer 603, and a cable head 602.

図２の回路構成を有するＧＩＳの立面図を図１に示す。また、図１のＡ−Ａ断面図を図３に示し、図１のＢ−Ｂ断面図を図４に示す。   An elevation view of a GIS having the circuit configuration of FIG. 2 is shown in FIG. 1 is shown in FIG. 3, and FIG. 4 is a sectional view taken along line BB in FIG.

図１、図３及び図４において、第一母線ユニット４０には、第一母線導体４０２と母線用接地断路器４０１が備えられている。また、第二母線ユニット５０には、第二母線導体５０２と母線用接地断路器５０１および断路器操作器４０３，４０４が備えられている。第一母線導体４０２と第二母線導体５０２から分岐し、一本にまとめられた遮断器用導体３０２は、遮断器ユニット３０内の遮断部３０１の上部を通って、母線側変流器ユニットである第一変流器ユニット１０の変流器用導体１０２と接続される。   1, 3, and 4, the first bus unit 40 includes a first bus conductor 402 and a bus grounding disconnector 401. The second bus unit 50 includes a second bus conductor 502, a bus ground disconnect switch 501, and disconnect switch operators 403 and 404. The breaker conductor 302 branched from the first bus conductor 402 and the second bus conductor 502 and integrated into one is a bus-side current transformer unit through the upper part of the breaker 301 in the breaker unit 30. The current transformer conductor 102 of the first current transformer unit 10 is connected.

第一変流器用ユニット１０は、遮断器ユニット３０を挟んで、第一母線ユニット４０と第二母線ユニット５０の反対側に配置されている。第一変流器用ユニット１０には、変流器用タンク１０３が備えられ、このタンク内に第一の変流器１０１が横向き、すなわち変流器用導体１０２が、変流器１０１のコイル内を水平方向に貫通するように収納されている。   The first current transformer unit 10 is disposed on the opposite side of the first bus unit 40 and the second bus unit 50 with the circuit breaker unit 30 interposed therebetween. The first current transformer unit 10 is provided with a current transformer tank 103, in which the first current transformer 101 faces sideways, that is, the current transformer conductor 102 is horizontal in the coil of the current transformer 101. It is stored so as to penetrate in the direction.

遮断器ユニット３０には遮断部３０１が備えられている。また、遮断器ユニットの下部には、投入、遮断動作のときに可動部を操作する機構を収納した遮断器用操作器３０３が設けられている。遮断器用操作器３０３は架台に固定されている。   The circuit breaker unit 30 includes a circuit breaker 301. A circuit breaker operating device 303 is provided below the circuit breaker unit. The circuit breaker operating device 303 houses a mechanism for operating the movable part during the closing and breaking operations. The circuit breaker operating device 303 is fixed to the gantry.

遮断器ユニット３０の母線ユニットに対して反対側には、線路側変流器用ユニットである第ニ変流器用ユニット２０も配置されている。図１では、第一変流器用ユニット１０が上部側に配置され、第二変流器用ユニット２０が下部側に配置されている。第二変流器用ユニット２０の構成も、第一変流器ユニットと同様であり、変流器用タンク２０３が設けられ、そのタンク内に第二の変流器２０１が横向きに設置され、第二の変流器を構成するコイル内を貫通するように変流器用導体２０２が配備されている。変流器用導体２０２は、その後、線路ユニット６０内の導体と接続される。   A second current transformer unit 20 that is a line-side current transformer unit is also arranged on the opposite side of the circuit breaker unit 30 from the bus bar unit. In FIG. 1, the first current transformer unit 10 is arranged on the upper side, and the second current transformer unit 20 is arranged on the lower side. The configuration of the second current transformer unit 20 is the same as that of the first current transformer unit, and a current transformer tank 203 is provided, and a second current transformer 201 is installed sideways in the tank. A current transformer conductor 202 is provided so as to penetrate through the coil constituting the current transformer. Thereafter, the current transformer conductor 202 is connected to a conductor in the line unit 60.

線路ユニット６０には、線路用接地断路器６０１、計器用変圧器６０３、ケーブルヘッド６０２、接地開閉器６０４および接地開閉器操作器６０５が収納されている。ケーブルヘッド６０２は、遮断器ユニットの遮断器用操作器３０３を固定したのと同じ架台に固定されている。   The line unit 60 accommodates a line ground disconnector 601, an instrument transformer 603, a cable head 602, a ground switch 604, and a ground switch operator 605. The cable head 602 is fixed to the same base on which the circuit breaker operating device 303 of the circuit breaker unit is fixed.

図１において、第一母線ユニット４０と第二母線ユニット５０を流れた電流は、第一変流器ユニット１０に入り、変流器用導体１０２を流れて遮断器ユニット３０に入る。遮断器ユニット３０を出た電流は、その後、第二変流器ユニット２０の変流機器用導体２０２を流れ、線路ユニット６０に入る。   In FIG. 1, the current flowing through the first bus unit 40 and the second bus unit 50 enters the first current transformer unit 10, flows through the current transformer conductor 102, and enters the circuit breaker unit 30. Thereafter, the current flowing out of the circuit breaker unit 30 flows through the current transformer device conductor 202 of the second current transformer unit 20 and enters the line unit 60.

第一変流器用ユニット１０及び第二変流器ユニットは、図４に示すように、いずれも、三相分の変流器の外円周が相互に近接するような三角形配置となるように構成されている。また、第一変流器ユニットは、三相分の変流器の導体が、それぞれ、ユニット内の第一の端部からコイルの中心を貫通した後、第二の端部において折り返し、変流器外部の空間を通って第一の端部へ向かう経路を有するように構成されている。具体的には、第一変流器ユニットにおいて、第一の変流器内部を貫通する第一の導体は、母線ユニットから第一の変流器内部を貫通した後、折り返して、第二，第三の変流器が近接する外周側部から遮断器ユニットへ接続している。また、第二の変流器内部を貫通する第二の導体は、母線ユニットから第一，第二の変流器が近接する外周側部を通した後、折り返して、第二の変流器内部を貫通して遮断器ユニットに接続している。更に、第三の変流器内部を貫通する第三の導体は、母線ユニットから第一，第三の変流器が近接する外周側部を通した後、折り返して、第三の変流器内部を貫通して遮断器ユニットに接続されるように構成している。   As shown in FIG. 4, the first current transformer unit 10 and the second current transformer unit are both arranged in a triangle so that the outer circumferences of the three-phase current transformers are close to each other. It is configured. Further, the first current transformer unit is configured such that the conductors of the current transformers for three phases pass through the center of the coil from the first end in the unit, and then turn back at the second end. It is comprised so that it may have a path | route which goes to the 1st edge part through the space outside a vessel. Specifically, in the first current transformer unit, the first conductor that penetrates the inside of the first current transformer passes through the inside of the first current transformer from the bus bar unit, and then turns back, The third current transformer is connected to the circuit breaker unit from the adjacent outer peripheral side. In addition, the second conductor penetrating through the second current transformer passes through the outer peripheral side portion where the first and second current transformers are close to each other from the bus unit, and then turns back to form the second current transformer. It penetrates the inside and is connected to the circuit breaker unit. Further, the third conductor passing through the inside of the third current transformer passes through the outer peripheral side portion where the first and third current transformers are close to each other from the bus unit, and then turns back to form the third current transformer. It is configured to pass through the inside and be connected to the circuit breaker unit.

本実施例１によれば、第一変流器ユニットと第二変流器ユニットが、遮断器ユニットの同一側面に設置されているので、ＧＩＳに占める変流器ユニットの容積を小さくでき、ＧＩＳをコンパクトにすることができる。   According to the first embodiment, since the first current transformer unit and the second current transformer unit are installed on the same side surface of the circuit breaker unit, the volume of the current transformer unit in the GIS can be reduced. Can be made compact.

第一変流器ユニット及び第二変流器ユニットは、横向きではなく、立て向きに配置することも可能である。しかし、高さが高くなるので、現実の装置の寸法等を考慮すると、横向き配置が最善である。   The first current transformer unit and the second current transformer unit can be arranged not in the horizontal direction but in the vertical direction. However, since the height becomes high, the horizontal arrangement is the best when the dimensions of the actual device are taken into consideration.

第一変流器ユニット及び第二変流器ユニットは、母線ユニット側に位置する遮断器ユニット側面に配置することも可能である。しかし、三相回路の導体及び遮断部をタンクに収納している構造上、線路側変流器ユニットである第二変流器ユニットを母線ユニット側に配置して構成することは、得策でない。母線ユニットと反対側の遮断器ユニットの側面に、第一変流器ユニット及び第二変流器ユニットを配置することを推奨する。   The first current transformer unit and the second current transformer unit can be arranged on the side face of the circuit breaker unit located on the bus bar unit side. However, it is not a good idea to arrange the second current transformer unit, which is a line-side current transformer unit, on the bus unit side because of the structure in which the conductor and the blocking part of the three-phase circuit are housed in the tank. It is recommended to place the first current transformer unit and the second current transformer unit on the side of the circuit breaker unit opposite to the bus bar unit.

第一変流器ユニットを、母線ユニットに対して反対側に位置する遮断器ユニットの側面に配置する場合には、第一変流器ユニットの変流器用導体は、構造上、変流器のコイル内を貫通させたのち、折り返して元の方向へ戻すことが必要になる。この場合、変流器のコイル内を貫通させたのち、折り返し、変流器の外側を通して元の方向に戻しても良いし、反対に、変流器の外側を通してから折り返し、変流器のコイル内を貫通させて元の方向に戻しても良い。要するに，どちらでも良い。   When the first current transformer unit is arranged on the side surface of the circuit breaker unit located on the opposite side to the bus unit, the current transformer conductor of the first current transformer unit is structurally After passing through the coil, it is necessary to return it to the original direction. In this case, after passing through the coil of the current transformer, it may be folded back and returned to the original direction through the outside of the current transformer. The inside may be returned to the original direction. In short, either is fine.

本実施例では、図１に示すように、第一母線ユニット４０と第一変流器ユニット１０の中心位置が概ね一致した配置になっており、また、第二母線ユニット５０と第二変流器ユニット２０の中心位置が概ね一致した配置になっている。母線ユニットと遮断器ユニットの間に、変流器ユニットを挿入する場合、母線と変流器の高さを合わせておくことで、ユニットの共有化が図れるという効果が得られる。   In the present embodiment, as shown in FIG. 1, the center positions of the first bus unit 40 and the first current transformer unit 10 are substantially aligned, and the second bus unit 50 and the second current transformer are arranged. The central position of the container unit 20 is substantially matched. When the current transformer unit is inserted between the bus bar unit and the circuit breaker unit, the unit can be shared by matching the height of the bus bar and the current transformer.

本発明により、遮断器ユニットを挟んで２つの変流器ユニットが対向して備えられたＧＩＳにおいて、ＧＩＳに占める変流器ユニットの容積を小さくして、ＧＩＳをコンパクトにすることが可能になった。これにより、ＧＩＳの設置面積の縮小が図れ、屋内への設置が容易になった。   According to the present invention, in a GIS provided with two current transformer units facing each other with a circuit breaker unit interposed therebetween, it is possible to reduce the volume of the current transformer unit in the GIS and make the GIS compact. It was. As a result, the installation area of the GIS can be reduced, and the indoor installation becomes easy.

本発明の第１の実施例を示すガス絶縁開閉装置の立面図。1 is an elevation view of a gas insulated switchgear showing a first embodiment of the present invention. 第１の実施例によるガス絶縁開閉装置の回路構成図。The circuit block diagram of the gas insulated switchgear by a 1st Example. 図１のガス絶縁開閉装置のＡ−Ａ断面図。AA sectional drawing of the gas insulated switchgear of FIG. 図１のガス絶縁開閉装置のＢ−Ｂ断面図。BB sectional drawing of the gas insulated switchgear of FIG.

符号の説明Explanation of symbols

１０…第一変流器ユニット、２０…第二変流器ユニット、３０…遮断器ユニット、４０…第一母線ユニット、５０…第二母線ユニット、６０…線路ユニット、１０１…第一の変流器、１０２…変流器用導体、１０３…変流器用タンク、２０１…第ニの変流器、２０２…変流器用導体、２０３…変流器用タンク、３０１…遮断部、３０２…遮断器用導体、３０３…遮断器用操作器、４０１…母線用接地断路器、４０２…第一母線導体、５０１…母線用接地断路器、５０２…第二母線導体、６０１…線路用接地断路器、６０２…ケーブルヘッド、６０３…計器用変圧器、６０４…接地開閉器。   DESCRIPTION OF SYMBOLS 10 ... First current transformer unit, 20 ... Second current transformer unit, 30 ... Circuit breaker unit, 40 ... First bus unit, 50 ... Second bus unit, 60 ... Line unit, 101 ... First current transformer , 102 ... Current transformer conductor, 103 ... Current transformer tank, 201 ... Second current transformer, 202 ... Current transformer conductor, 203 ... Current transformer tank, 301 ... Circuit breaker, 302 ... Circuit breaker conductor, DESCRIPTION OF SYMBOLS 303 ... Operating device for circuit breakers, 401 ... Grounding disconnector for busbars, 402 ... First busbar conductor, 501 ... Grounding disconnector for busbars, 502 ... Second busbar conductor, 601 ... Grounding disconnector for lines, 602 ... Cable head, 603: Instrument transformer, 604: Ground switch.

Claims (7)

縦型に設置された遮断部を有する遮断器ユニットを挟んで一方の側に母線ユニットを、他方の側に線路ユニットを有し、更に主回路の電流計測のための第一及び第二変流器ユニットを備えているガス絶縁開閉装置において、
前記遮断器ユニットの前記線路ユニットに対向する側面に、前記第一及び第二変流器ユニットの両方を配置し、前記第一変流器ユニットを電気回路上前記遮断部の母線ユニット側に接続し、前記第二変流器ユニットを電気回路上前記遮断部の線路側ユニット側に接続すると共に、前記第一変流器ユニットを前記第二変流器ユニットの上方に配置し、かつ、前記母線ユニットの母線導体は、前記遮断部の上方を水平に貫通して線路ユニット側に配置された前記第一変流器ユニットの変流器用導体に接続されており、前記母線ユニットが三相一括型構造を有し、前記第一変流器ユニット及び前記第二変流器ユニットが、いずれも三相分の変流器の外円周が相互に近接するような三角形配置となっていると共に、前記第一変流器ユニットは、第一，第二，第三の変流器をそれぞれの外周が近接するような三角形配置とし、前記第一の変流器内部を貫通する第一の導体は、前記母線ユニットから前記第一の変流器内部を貫通した後、折り返して前記第二，第三の変流器が近接する外周側部から前記遮断器ユニットへ接続され、前記第二の変流器内部を貫通する第二の導体は、前記母線ユニットから前記第一，第二の変流器が近接する外周側部を通した後、折り返して前記第二の変流器内部を貫通して前記遮断器ユニットに接続され、前記第三の変流器を貫通する第三の導体は、前記母線ユニットから前記第一，第三の変流器が近接する外周側部を通した後、折り返して前記第三の変流器内部を貫通して前記遮断器ユニットに接続されていることを特徴とするガス絶縁開閉装置。 First and second current transformers for current measurement of the main circuit, having a bus unit on one side and a line unit on the other side across a breaker unit having a breaker unit installed vertically In a gas-insulated switchgear equipped with a heater unit,
Both the first and second current transformer units are arranged on the side of the circuit breaker unit facing the line unit, and the first current transformer unit is connected to the bus unit side of the circuit breaker on the electric circuit. And connecting the second current transformer unit to the line side unit side of the interrupting unit on an electric circuit, arranging the first current transformer unit above the second current transformer unit, and The bus bar conductor of the bus bar unit is connected to the current transformer conductor of the first current transformer unit disposed horizontally on the line unit side through the upper part of the blocking part, and the bus bar unit is a three-phase batch The first current transformer unit and the second current transformer unit have a triangular arrangement so that the outer circumferences of the three-phase current transformers are close to each other. The first current transformer unit is the first, The second and third current transformers are arranged in a triangle so that their outer peripheries are close to each other, and the first conductor penetrating the inside of the first current transformer is connected to the inside of the first current transformer from the bus unit. The second and third current transformers are connected to the circuit breaker unit from the adjacent outer peripheral side, and the second conductor penetrating through the second current transformer is The first and second current transformers pass through the adjacent outer peripheral side from the busbar unit, and then turn back and pass through the second current transformer to be connected to the circuit breaker unit. The third conductor that penetrates the current transformer passes through the outer peripheral side portion where the first and third current transformers are close to each other from the bus unit, and then turns back to penetrate the inside of the third current transformer. A gas insulated switchgear connected to the circuit breaker unit . 前記第一及び第二変流器ユニットは、いずれも変流器が横向きに設置されて構成されていることを特徴とする請求項１記載のガス絶縁開閉装置。   2. The gas insulated switchgear according to claim 1, wherein each of the first and second current transformer units includes a current transformer installed sideways. 前記第一及び第二変流器ユニットは、変流器用導体が、変流器コイル内を水平方向に貫通して構成されていることを特徴とする請求項２記載のガス絶縁開閉装置。   The gas insulated switchgear according to claim 2, wherein the first and second current transformer units are configured such that a current transformer conductor penetrates the current transformer coil in the horizontal direction. 前記第一変流器ユニットの変流器用導体が、前記変流器コイル内を貫通した後に折り返して該変流器コイルの外側を通って同じ方向に戻るように構成されていることを特徴とする請求項３記載のガス絶縁開閉装置。   The current transformer conductor of the first current transformer unit is configured to be folded after passing through the current transformer coil and return in the same direction through the outside of the current transformer coil. The gas insulated switchgear according to claim 3. 前記第一変流器ユニットは、三相分の変流器の導体が、それぞれユニット内の第一の端部から変流器を構成するコイルの中心を貫通した後、第二の端部において折り返し、変流器外部の空間を通って前記第一の端部へ向かう経路を有することを特徴とする請求項１記載のガス絶縁開閉装置。 In the first current transformer unit, after the conductors of the current transformers for three phases pass through the center of the coil constituting the current transformer from the first end in the unit, respectively, The gas insulated switchgear according to claim 1 , wherein the gas insulated switchgear has a path that goes back and passes through a space outside the current transformer toward the first end . 前記母線ユニットは、第一母線ユニットとこの第一母線ユニットの下方に位置する第二母線ユニットから構成されていることを特徴とする請求項１記載のガス絶縁開閉装置。 The busbar unit includes a gas insulated switchgear according to claim 1, characterized in that it is constituted from the second busbar unit located below the first busbar unit and the first busbar unit. 上方に配置される前記第一母線ユニットと前記第一変流器ユニットの中心位置、及び下方に配置される前記第二母線ユニットと前記第二変流器ユニットの中心位置が、いずれも略一致して配置されていることを特徴とする請求項６記載のガス絶縁開閉装置。 The center positions of the first bus unit and the first current transformer unit disposed above and the center positions of the second bus unit and the second current transformer unit disposed below are substantially the same. The gas insulated switchgear according to claim 6 , wherein the gas insulated switchgear is arranged in parallel .
JP2004065135A 2004-03-09 2004-03-09 Gas insulated switchgear Expired - Lifetime JP4272088B2 (en)

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CNB2005100075738A CN1331285C (en) 2004-03-09 2005-02-05 Gas insulation switch device
KR1020050013299A KR101109065B1 (en) 2004-03-09 2005-02-17 Gas insulated switchgear

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