JP4397671B2 - Gas insulated switchgear - Google Patents

Gas insulated switchgear Download PDF

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JP4397671B2
JP4397671B2 JP2003365503A JP2003365503A JP4397671B2 JP 4397671 B2 JP4397671 B2 JP 4397671B2 JP 2003365503 A JP2003365503 A JP 2003365503A JP 2003365503 A JP2003365503 A JP 2003365503A JP 4397671 B2 JP4397671 B2 JP 4397671B2
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bus
gas
insulated
breaker
main
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JP2005130657A (en
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万幸樹 八田
敏則 白戸
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Tohoku Electric Power Co Inc
Japan AE Power Systems Corp
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Tohoku Electric Power Co Inc
Japan AE Power Systems Corp
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本発明は電力の送配電や受配電に用いられるガス絶縁開閉装置に関する。   The present invention relates to a gas insulated switchgear used for power transmission / distribution and power distribution.

一般に、ガス絶縁開閉装置は電力の送配電や受配電を行うために電力系統の開閉に多く採用されている。ガス絶縁開閉装置は電力系統から通常2回線を引込み、主母線は電力の安定供給のため2重母線方式にしている。主母線は相分離配置あるいは3相一括配置するようにしている。   In general, gas-insulated switchgears are often used to open and close a power system in order to transmit and receive power and to receive and distribute power. The gas insulated switchgear usually draws two lines from the power system, and the main bus has a double bus system for stable power supply. The main bus bars are arranged in a phase-separated arrangement or a three-phase arrangement.

このようなガス絶縁開閉装置は主母線と送電線を接続する送電線回線用ガス絶縁開閉ユニットと、主母線と変圧器を接続する変圧器回線用ガス絶縁開閉ユニットと、2重母線の場合には母線連絡用ガス絶縁開閉ユニットを備えている。   Such a gas-insulated switchgear is in the case of a power-insulated switch unit for a transmission line that connects the main bus and the power transmission line, a gas-insulated switch unit for a transformer line that connects the main bus and the transformer, and a double bus. Is equipped with a gas-insulated switching unit for busbar communication.

送電線回線用ガス絶縁開閉ユニットは、遮断器の一端が分岐母線と断路器を介して主母線に接続され、他端が断路器と分岐母線を介してブッシングに接続するように構成されている。ブッシングに電力系統の送電線が接続される。   The gas-insulated switchgear unit for a power transmission line is configured such that one end of a circuit breaker is connected to a main bus via a branch bus and a disconnect bus, and the other end is connected to a bushing via a disconnect and the branch bus. . The transmission line of the power system is connected to the bushing.

変圧器回線用ガス絶縁開閉ユニットは、一端が分岐母線と断路器を介して主母線に接続され、他端が分岐母線を介して変圧器に接続される遮断器を有して構成されている。また、母線連絡用ガス絶縁開閉ユニットは、一端が分岐母線を介して2重母線の一方の主母線に接続され、他端が分岐母線を介して他方の主母線に接続される遮断器を有して構成されている。   The gas insulated switchgear unit for transformer lines is configured to include a circuit breaker having one end connected to the main bus via the branch bus and disconnector and the other end connected to the transformer via the branch bus. . In addition, the bus-insulated gas insulated switchgear unit has a circuit breaker having one end connected to one main bus of the double bus via the branch bus and the other end connected to the other main bus via the branch bus. Configured.

送電線回線用ガス絶縁開閉ユニット(ブッシング引出回線)の遮断器を横置形とし、変圧器回線用ガス絶縁開閉ユニット(ケーブル引出回線)の遮断器を縦置形にすることが知られている。このことは、例えば、下記特許文献1に記載されている。   It is known that the circuit breaker of the gas-insulated switchgear unit for the transmission line (bushing lead line) is a horizontal type and the circuit breaker of the gas-insulated switch unit for the transformer line (cable lead line) is a vertical type. This is described, for example, in Patent Document 1 below.

特開2002―305815号公報JP 2002-305815 A

従来技術は、送電線回線用ガス絶縁開閉ユニットの遮断器を横置形にしているが、上面観がコ字状(横置形遮断器と2本の分岐母線における折曲部の形状)にして分岐母線に接続している。分岐母線が遮断器間に配設されるので、3相各相の遮断器は離して配置しなければならなくなる。そのために遮断器と略直線上に配置される断路器も各相離れてしまい、3相の断路器を1台の操作器で操作することが難しくなり3相各相の断路器毎に操作器を設けることが必要になる。したがって、断路器の操作が面倒になり、かつコストが大になるという問題点を有する。 In the conventional technology, the circuit breaker of the gas insulated switchgear unit for the power transmission line is installed horizontally, but the top view is U-shaped (the shape of the bent part of the horizontal circuit breaker and the two branch buses). Connected to the bus. Since the branch bus is arranged between the circuit breakers, the breakers for each of the three phases must be arranged separately. For this reason, the disconnecting devices arranged in a substantially straight line with the circuit breaker are also separated from each other phase, making it difficult to operate the three-phase disconnecting device with one operating device. It is necessary to provide. Therefore, there are problems that the operation of the disconnector becomes troublesome and the cost is increased.

本発明の目的は断路器の操作を簡単に行え、コスト低減を図ることができるガス絶縁開閉装置を提供することにある。   An object of the present invention is to provide a gas insulated switchgear that can easily operate a disconnector and can reduce the cost.

本発明のガス絶縁開閉装置は、並置する2つの主母線と、前記各主母線間を接続する母線連絡用ガス絶縁開閉ユニットと、前記各主母線の一方側に前記母線連絡用ガス絶縁開閉ユニットを挟むように配置され、それぞれ前記各主母線と送電線間を接続する横置形遮断器を有する送電線回線用ガス絶縁開閉ユニットと、前記各主母線の他方側に前記母線連絡用ガス絶縁開閉ユニット及び前記各送電線回線用ガス絶縁開閉ユニットを挟むように配置され、それぞれ前記各主母線と変圧器間を接続する遮断器を有する変圧器回線用ガス絶縁開閉ユニットとを有し、前記各送電線回線用ガス絶縁開閉ユニットの横置形遮断器は、それぞれ分岐母線を介して前記各主母線と接続したガス絶縁開閉装置において、前記母線連絡用ガス絶縁開閉ユニットは、前記主母線の長手方向の中央部に配置し、前記各送電線回線用ガス絶縁開閉ユニット及び前記各変圧器回線用ガス絶縁開閉ユニットは、前記母線連絡用ガス絶縁開閉ユニットを中心として略対称となるように配置し、前記送電線回線用ガス絶縁開閉ユニットの横置形遮断器は、前記各主母線の略同一水平軸上に配置すると共に、前記横置形遮断器の垂直面上側に位置するように分岐母線を配設してそれぞれ断路器を介して前記各主母線と接続し、かつ前記横置形遮断器の軸方向端面から水平方向に前記分岐母線を引出してブッシングと接続して構成したことを特徴としている。The gas-insulated switchgear according to the present invention includes two main buses arranged in parallel, a bus-insulated gas-insulated switch unit for connecting the main buses, and the bus-insulated gas-insulated switch unit on one side of the main buses. A gas insulated switching unit for a transmission line having a horizontal circuit breaker that is arranged so as to sandwich each of the main buses and the transmission line, and a gas insulated switch for bus connection on the other side of each of the main buses A gas-insulated switching unit for a transformer line, which is disposed so as to sandwich the unit and the gas-insulated switching unit for each transmission line, and has a circuit breaker for connecting between each main bus and the transformer, The horizontal type circuit breaker of the gas insulated switchgear unit for the power transmission line is a gas insulated switchgear connected to the main buses via the branch buses, respectively. It is arranged in the central part of the main bus in the longitudinal direction, and each of the power-insulated gas-insulated switch units and the transformer-insulated gas-insulated switch units are substantially symmetrical about the bus-connecting gas-insulated switch unit. The horizontal breaker of the gas-insulated switchgear unit for the power transmission line is arranged on substantially the same horizontal axis of each main bus and is positioned above the vertical surface of the horizontal breaker. A branch bus is arranged on each of the main buses and connected to each main bus via a disconnector, and the branch bus is pulled out in a horizontal direction from an axial end face of the horizontal breaker and connected to a bushing. It is characterized by.

本発明は、送電線回線用ガス絶縁開閉ユニットの横置形遮断器は、主母線に接続する分岐母線が垂直面上側に位置するように配設されているので各相の遮断器を近接して配置することができる。したがって、3相の断路器は1台の操作器で3相一括操作できるので、断路器の操作を簡単に行える。しかも、各送電線回線用及び各変圧器回線用ガス絶縁開閉ユニットを母線連絡用ガス絶縁開閉ユニットに対して適切に配置したので、ガス絶縁開閉装置全体の据付面積を減縮することができるから、コスト低減を図ることができる。 In the present invention, the horizontal breaker of the gas insulated switchgear unit for the power transmission line is arranged so that the branch bus connected to the main bus is located on the upper side of the vertical plane. Can be arranged. Therefore, breaker of 3-phase since it non-phase segregated operation-in one operating device, Ru easy operation of the disconnector. In addition, since the gas insulated switchgear unit for each power transmission line and each transformer line is appropriately arranged with respect to the gas insulated switchgear unit for bus connection, the installation area of the entire gas insulated switchgear can be reduced. Cost reduction can be achieved.

主母線は2重母線に構成されている。送電線回線用ガス絶縁開閉ユニットの横置形遮断器は、一端が分岐母線と断路器を介して主母線に接続され、他端が断路器と分岐母線を介して送電線に接続される。送電線回線用ガス絶縁開閉ユニットの横置形遮断器は、主母線に接続する分岐母線が垂直面上側に位置するように配設されている。変圧器回線用ガス絶縁開閉ユニットは、一端が分岐母線と断路器を介して主母線に接続され、他端が分岐母線を介して変圧器に接続される遮断器を有する。母線連絡用ガス絶縁開閉ユニットは、一端が分岐母線を介して2重母線の一方の主母線に接続され、他端が分岐母線を介して他方の主母線に接続される遮断器を有する。送電線回線用絶縁開閉ユニットの横置形遮断器は、分岐母線の遮断器接続端折曲部とによって垂直面でL字状を形成して断路器を接続し、母線連絡用ガス絶縁開閉ユニットの遮断器は両端の分岐母線が垂直面でコ字状に接続される縦置形で構成されている。 The main bus is configured as a double bus. One end of the horizontal breaker of the gas insulated switchgear for the power transmission line is connected to the main bus via the branch bus and the disconnector, and the other end is connected to the power transmission via the disconnector and the branch bus. The horizontal breaker of the gas-insulated switchgear unit for the power transmission line is arranged so that the branch bus connected to the main bus is located on the upper side of the vertical plane . The transformer-insulated gas insulated switching unit has a circuit breaker having one end connected to the main bus via a branch bus and a disconnector and the other end connected to the transformer via a branch bus. The bus-insulated gas insulated switching unit has a circuit breaker having one end connected to one main bus of a double bus via a branch bus and the other end connected to the other main bus via a branch bus. Horizontal mounted type breaker insulation closing unit for power lines lines, to form an L-shape to connect the disconnecting switch in the vertical plane by the breaker connecting Hasho curved portion of the branch bus, the busbar for a gas-insulated switchgear unit This circuit breaker is configured in a vertical configuration in which branch buses at both ends are connected in a U-shape on a vertical plane .

図1に本発明の一実施例を示す。図1はガス絶縁開閉装置の平面機器配置図である。図1は2重母線の例を示している。   FIG. 1 shows an embodiment of the present invention. FIG. 1 is a layout plan view of a gas insulated switchgear. FIG. 1 shows an example of a double bus.

図1において、3相の主母線1、2は2つの送電線回線用ガス絶縁開閉ユニット10A、10Bによりブッシング17に接続されている。また、主母線1、2は2つの変圧器回線用ガス絶縁開閉ユニット20A、20Bにより変圧器3、4に接続されている。変圧器回線用ガス絶縁開閉ユニット20Aは横置形遮断器を用いており、変圧器回線用ガス絶縁開閉ユニット20Bは縦置形遮断器を用いている例を示している。主母線1と2の間は母線連絡用ガス絶縁開閉ユニット30により接続されている。   In FIG. 1, three-phase main buses 1 and 2 are connected to a bushing 17 by two gas-insulated switching units 10A and 10B for power transmission lines. The main buses 1 and 2 are connected to the transformers 3 and 4 by two transformer-insulated gas insulated switching units 20A and 20B. The transformer-line gas-insulated switch unit 20A uses a horizontal breaker, and the transformer-line gas-insulated switch unit 20B uses a vertical breaker. The main buses 1 and 2 are connected by a bus-insulating gas insulated switching unit 30.

図2に送電線回線用ガス絶縁開閉ユニット10の一例構成を示す。   FIG. 2 shows an example configuration of the gas insulated switching unit 10 for a transmission line.

図2において、主母線1、2は円筒状の母線容器にそれぞれ3相母線が張設されている。主母線1、2には母線側断路器11,12の一端(母線側端)が接続されている。断路器11,12は断路器容器に収納されている。断路器11,12の他端つまり送電線回線側(以後、線路側と称する)端は分岐管に収納されている分岐母線13によって横置形遮断器14の一端(母線側端)に接続される。遮断器14は遮断器容器に収納されている。   In FIG. 2, main buses 1 and 2 have three-phase buses stretched around cylindrical bus containers. One end (bus-side end) of the bus-side disconnectors 11 and 12 is connected to the main buses 1 and 2. The disconnectors 11 and 12 are accommodated in the disconnector container. The other ends of the disconnectors 11 and 12, that is, the transmission line side (hereinafter referred to as the line side) end are connected to one end (bus side end) of the horizontal breaker 14 by the branch bus 13 housed in the branch pipe. . The circuit breaker 14 is housed in a circuit breaker container.

分岐母線13の線路側端(遮断器接続端)は横置形遮断器14の上側(垂直面上側)に位置しており垂直に折曲されて遮断器14の母線側端に接続される。分岐母線13における線路側端の折曲部はL字の短足部を形成する。横置形遮断器14の他端(線路側端)は横置形遮断器14と水平配置されている線路側断路器15の一端(母線側端)に接続される。断路器15は断路器容器に収納配置されている。 The line-side end (breaker connection end) of the branch bus 13 is positioned above the horizontal breaker 14 ( upper vertical surface) and is bent vertically and connected to the bus-side end of the breaker 14. The bent portion at the line side end of the branch bus 13 forms an L-shaped short leg portion. The other end (line side end) of the horizontal breaker 14 is connected to one end (bus side end) of the line breaker 15 arranged horizontally with the horizontal breaker 14. The disconnect switch 15 is accommodated in the disconnect switch container.

横置形遮断器14はL字の長足部を形成し、分岐母線13と断路器15を符号18で示すようにL字状に接続することになる。換言すると、横置形遮断器14は両端に接続される機器(分岐母線13と断路器15)をL字状に接続することになる。線路側断路器15の他端(線路側端)は分岐母線16によってブッシング17に接続されている。   The horizontal breaker 14 forms an L-shaped long leg portion, and the branch bus 13 and the disconnecting switch 15 are connected in an L shape as indicated by reference numeral 18. In other words, the horizontal breaker 14 connects the devices connected to both ends (the branch bus 13 and the disconnecting switch 15) in an L shape. The other end (line side end) of the line side disconnector 15 is connected to a bushing 17 by a branch bus 16.

主母線1,2を収納配置する母線容器、断路器11,12,15を収納配置する断路器容器、分岐母線13,16を収納配置する分岐管および横置形遮断器14を収納配置する遮断器容器のそれぞれの内部には絶縁ガスが密封して封入されている。   Busbar container for storing and arranging main buses 1 and 2, disconnector container for storing and arranging disconnectors 11, 12 and 15, branch pipes for storing and arranging branch buses 13 and 16, and circuit breaker for storing and arranging horizontal circuit breaker 14 An insulating gas is hermetically sealed inside each container.

図3に横置形遮断器を用いた変圧器回線用ガス絶縁開閉ユニット20Aの一例構成を示す。   FIG. 3 shows an example configuration of a gas insulated switching unit 20A for a transformer line using a horizontal breaker.

図3において、主母線1、2には母線側断路器21,22一端(母線側端)が接続されている。断路器21,22は断路器容器に収納されている。断路器21,22の他端(変圧器端)は分岐管に収納されている分岐母線23によって横置形遮断器24の一端(母線側端)に接続される。遮断器24は遮断器容器に収納されている。 3, one end of the bus side disconnector 21, 22 (bus side end) is connected to the main bus 1 and 2. The disconnectors 21 and 22 are accommodated in the disconnector container. The other ends (transformer ends) of the disconnectors 21 and 22 are connected to one end (bus side end) of the horizontal breaker 24 by a branch bus 23 accommodated in the branch pipe. The circuit breaker 24 is housed in a circuit breaker container.

分岐母線23の変圧器側端(遮断器接続端)は横置形遮断器24の上側(垂直面上側)に位置しており垂直に折曲されて遮断器24の一端(母線側端)に接続される。分岐母線23における変圧器側端の折曲部はL字の短足部を形成する。横置形遮断器24の他端(変圧器側端)は分岐母線25の母線側端に接続される。分岐母線25は分岐管に収納配置されている。 The transformer-side end (breaker connection end) of the branch bus 23 is located on the upper side (vertical surface upper side ) of the horizontal breaker 24 and is bent vertically and connected to one end (bus-side end) of the breaker 24. Is done. The bent part at the transformer side end of the branch bus 23 forms an L-shaped short leg part. The other end (transformer side end) of the horizontal breaker 24 is connected to the bus side end of the branch bus 25. The branch bus 25 is accommodated in the branch pipe.

横置形遮断器24はL字の長足部を形成し、分岐母線23と25を符号26で示すようにL字状に接続することになる。換言すると、横置形遮断器24は両端に接続される機器(分岐母線23と25)をL字状に接続することになる。分岐母線25の変圧器側端は変圧器3に接続される。   The horizontal breaker 24 forms an L-shaped long leg portion, and the branch buses 23 and 25 are connected in an L-shape as indicated by reference numeral 26. In other words, the horizontal breaker 24 connects devices (branching buses 23 and 25) connected to both ends in an L shape. The transformer-side end of the branch bus 25 is connected to the transformer 3.

断路器21,22を収納配置する断路器容器、分岐母線23,25を収納配置する分岐管および横置形遮断器24を収納配置する遮断器容器のそれぞれの内部には絶縁ガスが密封して封入されている。   The insulating gas is sealed and enclosed in each of the disconnector container for accommodating and disposing the disconnectors 21 and 22, the branch pipe for accommodating and disposing the branch buses 23 and 25, and the breaker container for accommodating and disposing the horizontal breaker 24. Has been.

なお、変圧器回線用ガス絶縁開閉ユニット20Bは遮断器24が縦置形であることが異なるのみで変圧器回線用ガス絶縁開閉ユニット20Aと同様な構成になる。遮断器24を横置形あるいは縦置形にするかは変圧器3,4の接続端子の高さ位置により決定される。   The transformer-line gas-insulated switch unit 20B has the same configuration as that of the transformer-line gas-insulated switch unit 20A, except that the circuit breaker 24 is a vertical type. Whether the circuit breaker 24 is to be installed horizontally or vertically is determined by the height position of the connection terminals of the transformers 3 and 4.

図4に母線連絡用ガス絶縁開閉ユニット30の一例構成を示す。   FIG. 4 shows an example of the configuration of the bus-insulated gas insulated switching unit 30.

図4において、主母線1、2には断路器31,32の一端(母線側端)が接続されている。断路器31,32は断路器容器に収納されている。断路器31の他端(線路側端)は分岐管に収納されている分岐母線33によって縦置形遮断器35に接続される。縦置形遮断器35は遮断器容器に収納されている。断路器32の他端(線路側端)は分岐管に収納されている分岐母線34によって縦置形遮断器35の接続される。分岐母線34は分岐母線33より上で縦置形遮断器35に接続される。   In FIG. 4, one end (bus side end) of disconnectors 31 and 32 is connected to main buses 1 and 2. The disconnectors 31 and 32 are accommodated in the disconnector container. The other end (line side end) of the disconnector 31 is connected to the vertical breaker 35 by a branch bus 33 housed in the branch pipe. The vertical breaker 35 is housed in a breaker container. The other end (line side end) of the disconnector 32 is connected to a vertical breaker 35 by a branch bus 34 accommodated in the branch pipe. The branch bus 34 is connected to the vertical circuit breaker 35 above the branch bus 33.

分岐母線33と34は水平配置されて縦置形遮断器35に接続される。縦置形遮断器35は分岐母線33と34を符号36で示すように縦方向にコ字状に接続することになる。換言すると、縦置形遮断器35は両端に接続される機器(分岐母線33と34)を縦方向にコ字状に接続することになる。   The branch buses 33 and 34 are horizontally arranged and connected to the vertical type circuit breaker 35. The vertical circuit breaker 35 connects the branch buses 33 and 34 in the vertical direction as indicated by reference numeral 36. In other words, the vertical circuit breaker 35 connects devices (branching buses 33 and 34) connected to both ends in a vertical U-shape.

なお、送電線回線用ガス絶縁開閉ユニット10、変圧器回線用ガス絶縁開閉ユニット20および母線連絡用ガス絶縁開閉ユニット30には接地開閉器や変流器などが設けられるが図示を省略している。   In addition, the gas insulated switch unit 10 for power transmission line, the gas insulated switch unit 20 for transformer line, and the gas insulated switch unit 30 for bus line communication are provided with a ground switch, a current transformer, etc., but are not shown. .

このように構成されるガス絶縁開閉装置の単線接続図は図5のようになる。図5は送電線回線用ガス絶縁開閉ユニット10A、10B、変圧器回線用ガス絶縁開閉ユニット20A、20Bおよび母線連絡用ガス絶縁開閉ユニット30を破線で囲んで示している。また、接地開閉器、変流器、変成器などの記号も記載している。なお、図5の単線接続図は良く知られており詳細説明を省略する。   A single line connection diagram of the gas insulated switchgear configured as described above is as shown in FIG. FIG. 5 shows the gas-insulated switch units 10A and 10B for power transmission lines, the gas-insulated switch units 20A and 20B for transformer lines, and the gas-insulated switch unit 30 for bus connection surrounded by broken lines. In addition, symbols such as earthing switches, current transformers, and transformers are also shown. The single-line connection diagram of FIG. 5 is well known and will not be described in detail.

本発明のガス絶縁開閉装置は以上のように構成されており、送電線回線用ガス絶縁開閉ユニットの横置形遮断器は、主母線に接続する分岐母線が垂直面上側に位置するように配設されているので各相の遮断器を近接して配置することができる。したがって、3相の断路器は1台の操作器で3相一括操作できるので、断路器の操作を簡単に行える。しかも、各送電線回線用及び各変圧器回線用ガス絶縁開閉ユニットを母線連絡用ガス絶縁開閉ユニットに対して適切に配置したので、ガス絶縁開閉装置全体の据付面積を減縮することができるから、コスト低減を図ることができる。 The gas-insulated switchgear according to the present invention is configured as described above, and the horizontal breaker of the gas-insulated switchgear unit for the power transmission line is arranged so that the branch bus connected to the main bus is located above the vertical plane. Therefore, the breakers for each phase can be arranged close to each other. Therefore, breaker of 3-phase since it phase segregated operation with a single operating device, Ru easy operation of the disconnector. Moreover, since the gas insulated switchgear unit for each power transmission line and each transformer line has been appropriately disposed with respect to the gas insulated switchgear unit for connecting the bus line, the installation area of the entire gas insulated switchgear can be reduced. Cost reduction can be achieved.

また、上述の実施例は変圧器回線用ガス絶縁開閉ユニットが横置形と縦置形の遮断器を用いるようにしているので変圧器の端子位置高さに簡単に対応することができる。 Further, the above-described embodiments can be easily corresponds to the terminal position the height of the transformer because the transformer circuit for a gas-insulated switchgear unit is to use a circuit breaker of the horizontal-standing and vertically mounted type.

なお、上述の実施例は2重母線方式の例を挙げているが、1母線方式であっても良いことは明らかなことである。   In the above-described embodiment, an example of the double bus system is given, but it is obvious that the single bus system may be used.

本発明の一実施例を示す機器配置平面図である。It is an apparatus arrangement | positioning top view which shows one Example of this invention. 本発明の送電線回線用ガス絶縁開閉ユニットの一例構成図である。It is an example block diagram of the gas insulated switching unit for power transmission lines of this invention. 本発明の変圧器回線用ガス絶縁開閉ユニットの一例構成図である。It is an example block diagram of the gas insulated switching unit for transformer lines of this invention. 本発明の母線連絡用ガス絶縁開閉ユニットの一例構成図である。It is an example block diagram of the gas insulated switching unit for busbar connection of this invention. 本発明の一実施例の単線接続図である。It is a single line connection diagram of one example of the present invention.

符号の説明Explanation of symbols

1、2…主母線、3,4…変圧器、10…送電線回線用ガス絶縁開閉ユニット、11、12、15…断路器、13.16…分岐母線、14…横置形遮断器、17…ブッシング、18…L字状、20…変圧器回線用ガス絶縁開閉ユニット、21、22…断路器、23.25…分岐母線、24…横置形遮断器、26…L字状、30…母線連絡用ガス絶縁開閉ユニット、31、32…断路器、33.34…分岐母線、35…縦置形遮断器、36…コ字状。
DESCRIPTION OF SYMBOLS 1, 2 ... Main bus | bath, 3, 4 ... Transformer, 10 ... Gas insulated switch unit for power transmission lines, 11, 12, 15 ... Disconnector, 13.16 ... Branch bus, 14 ... Horizontal type circuit breaker, 17 ... Bushing, 18 ... L-shaped, 20 ... Gas-insulated switchgear unit for transformer line, 21, 22 ... Disconnector, 23.25 ... Branch bus, 24 ... Horizontal breaker, 26 ... L-shaped, 30 ... Bus connection Gas insulated switching unit, 31, 32 ... disconnector, 33.34 ... branch bus, 35 ... vertical circuit breaker, 36 ... U-shaped.

Claims (1)

並置する2つの主母線と、前記各主母線間を接続する母線連絡用ガス絶縁開閉ユニットと、前記各主母線の一方側に前記母線連絡用ガス絶縁開閉ユニットを挟むように配置され、それぞれ前記主母線と送電線を接続する横置形遮断器を有する送電線回線用ガス絶縁開閉ユニットと、前記各主母線の他方側に前記母線連絡用ガス絶縁開閉ユニット及び前記各送電線回線用ガス絶縁開閉ユニットを挟むように配置され、それぞれ前記主母線と変圧器を接続する遮断器を有する変圧器回線用ガス絶縁開閉ユニットとを有し、前記各送電線回線用ガス絶縁開閉ユニットの横置形遮断器は、それぞれ分岐母線を介して前記各主母線と接続したガス絶縁開閉装置において、
前記母線連絡用ガス絶縁開閉ユニットは、前記主母線の長手方向の中央部に配置し、前記各送電線回線用ガス絶縁開閉ユニット及び前記各変圧器回線用ガス絶縁開閉ユニットは、前記母線連絡用ガス絶縁開閉ユニットを中心として略対称となるように配置し、前記送電線回線用ガス絶縁開閉ユニットの横置形遮断器は、前記各主母線の略同一水平軸上に配置すると共に、前記横置形遮断器の垂直面上側に位置するように分岐母線を配設してそれぞれ断路器を介して前記各主母線と接続し、かつ前記横置形遮断器の軸方向端面から水平方向に前記分岐母線を引出してブッシングと接続して構成したことを特徴とするガス絶縁開閉装置。
Two main buses juxtaposed, a bus-insulated gas insulated switching unit for connecting the main buses, and a bus-insulated gas insulated switching unit on one side of the main buses, A gas-insulated switching unit for a transmission line having a horizontal circuit breaker for connecting between each main bus and the transmission line, the bus-insulating gas-insulated switching unit on the other side of each main bus and the gas for each transmission line A gas-insulated switching unit for a transformer line, which is arranged so as to sandwich an insulating switching unit, and has a circuit breaker that connects between each main bus and the transformer, and each of the gas-insulated switching units for each transmission line The horizontal breaker is a gas insulated switchgear connected to each main bus via a branch bus,
The bus-insulated gas insulated switching unit is disposed at the center in the longitudinal direction of the main bus, and the power-insulated gas-insulated switching units and the transformer-insulated gas-insulated switching units are connected to the bus. Arranged so as to be substantially symmetric with respect to the gas insulated switch unit, the horizontal breaker of the gas insulated switch unit for the transmission line is disposed on substantially the same horizontal axis of each main bus line, The branch buses are arranged so as to be located on the upper vertical surface of the circuit breaker, are connected to the main buses via the disconnectors, and the branch buses are horizontally connected from the axial end surface of the horizontal breaker. A gas-insulated switchgear characterized by being drawn out and connected to a bushing .
JP2003365503A 2003-10-27 2003-10-27 Gas insulated switchgear Expired - Lifetime JP4397671B2 (en)

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