JP2006197708A - Gas insulated switchgear - Google Patents

Gas insulated switchgear Download PDF

Info

Publication number
JP2006197708A
JP2006197708A JP2005005965A JP2005005965A JP2006197708A JP 2006197708 A JP2006197708 A JP 2006197708A JP 2005005965 A JP2005005965 A JP 2005005965A JP 2005005965 A JP2005005965 A JP 2005005965A JP 2006197708 A JP2006197708 A JP 2006197708A
Authority
JP
Japan
Prior art keywords
bushing
phase
connection
transmission line
insulated switchgear
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.)
Granted
Application number
JP2005005965A
Other languages
Japanese (ja)
Other versions
JP4416667B2 (en
Inventor
Jii Tou
ジー トウ
Kazuyuki Hatta
万幸樹 八田
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.)
Japan AE Power Systems Corp
Original Assignee
Japan AE Power Systems Corp
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.)
Filing date
Publication date
Application filed by Japan AE Power Systems Corp filed Critical Japan AE Power Systems Corp
Priority to JP2005005965A priority Critical patent/JP4416667B2/en
Publication of JP2006197708A publication Critical patent/JP2006197708A/en
Application granted granted Critical
Publication of JP4416667B2 publication Critical patent/JP4416667B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gas insulated switchgear capable of reducing a footprint and maintenance and mounting cost. <P>SOLUTION: This gas insulated switchgear having a connecting bus-bar 5 and a bushing 6 on a transmission line side of a switch is equipped with bushing connections 14, 15, 16 in each phase which is perpendicular to the axis of the connecting bus-bar 5 and divided so as to stand upward; a bushing 26 in the middle phase is installed on the bushing connection 14, causing the upper part to incline toward the electric line side; and bushings 25, 27 in the end phases are installed on the bushing connections 15, 16, causing the upper part to incline toward the opposite side from the electric line and in the direction away from the middle phase. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、ガス絶縁開閉装置に係り、特に発電所、変電所等の電気所に設置されるガス絶縁開閉装置に関する。   The present invention relates to a gas-insulated switchgear, and more particularly to a gas-insulated switchgear installed in an electric station such as a power plant or a substation.

発電所、変電所等の電気所に設置されるガス絶縁開閉装置は、絶縁気体が封入された高圧容器内に母線、遮断器、断路器、接地開閉器などの開閉器を収容し、この高圧容器を接地して構成している。気中送電線に接続されるガス絶縁開閉装置においては、ブッシング部を設けることにより気中送電線側に接続される。   Gas-insulated switchgear installed in power stations such as power stations and substations houses switches such as busbars, circuit breakers, disconnecting switches, and grounding switches in a high-pressure vessel filled with insulating gas. The container is grounded. In the gas insulated switchgear connected to the aerial power transmission line, it is connected to the aerial power transmission line side by providing a bushing portion.

この種のガス絶縁開閉装置におけるブッシングは、送電線回線の先端側で、その相間の気中絶縁距離を確保するために、各ブッシングを離間配置する構成を採用している(例えば、特許文献1参照。)。   The bushing in this type of gas-insulated switchgear employs a configuration in which the bushings are spaced apart from each other at the front end side of the transmission line in order to ensure an air insulation distance between the phases (for example, Patent Document 1). reference.).

特開平7−123544号公報Japanese Patent Laid-Open No. 7-123544

この種のガス絶縁開閉装置において、気中送電線側への接続箇所が複数になる場合には、隣接するブッシング間の気中絶縁距離も確保する必要があるため、複数のブッシングを設置するための設置面積、およびこれに伴うブッシングと母線との間の接続母線の設置面積が大きくならざるを得ない。   In this type of gas-insulated switchgear, when there are multiple connections to the air transmission line side, it is necessary to secure an air insulation distance between adjacent bushings. Therefore, the installation area of the connecting bus between the bushing and the bus is inevitably increased.

このような複数のブッシングを設置するための設置面積、およびブッシングと母線との間の接続母線の設置面積の増加は、基礎となるコンクリート面積が大きくなり、設備維持費用が増加するとともに設置費用も多大になる。   The increase in the installation area for installing multiple bushings and the connection bus installation area between the bushings and the busbars increases the concrete area as the foundation, which increases the equipment maintenance costs and the installation costs. Become enormous.

一方、ユーザ側としては、その設置面積を縮小し、その維持費、据付費用を削減することが要求されているが、その解決策が見当たらないのが現状である。   On the other hand, the user side is required to reduce the installation area and reduce the maintenance cost and the installation cost, but there is no solution at present.

本発明の目的は、上記の事情に鑑みてなされたもので、設置面積を縮小し、その維持費、据付費用を削減す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 reduce the installation area and reduce the maintenance cost and the installation cost.

本発明は、上記の目的を達成するために、第1の発明は、開閉器の送電線側に接続母線とブッシング部を有するガス絶縁開閉装置において、前記接続母線の軸線と直交し上方に立ち上がるように分岐して設けた各相のブッシング接続部と、上部が送電線側に向かって傾斜するように前記ブッシング接続部に設けた中相のブッシングと、上部が反送電線側でかつ中相から遠ざかる方向に傾斜するように前記ブッシング接続部に設けた端相のブッシングとを備えたことを特徴とするガス絶縁開閉装置にある。   In order to achieve the above object, the present invention provides a gas insulated switchgear having a connection bus and a bushing portion on a power transmission line side of a switch, and rises perpendicularly to the axis of the connection bus. The bushing connection part of each phase provided by branching, the intermediate phase bushing provided in the bushing connection part so that the upper part is inclined toward the transmission line side, and the upper part is the anti-transmission line side and the intermediate phase. A gas-insulated switchgear comprising an end-phase bushing provided in the bushing connection portion so as to incline in a direction away from the bushing.

また、第2の発明は、開閉器の送電線側に接続母線とブッシング部を有するガス絶縁開閉装置において、前記接続母線の軸線と直交し上方に立ち上がるように分岐して設けた各相のブッシング接続部と、上部が反送電線側に向かって傾斜するように前記ブッシング接続部に設けた中相のブッシングと、上部が送電線側でかつ中相から遠ざかる方向に傾斜するように前記ブッシング接続部に設けた端相のブッシングとを備えたことを特徴とするガス絶縁開閉装置にある。   The second invention is a gas-insulated switchgear having a connection bus and a bushing portion on the power transmission line side of the switch, and a bushing of each phase provided so as to branch upward so as to rise perpendicular to the axis of the connection bus The connecting portion, the intermediate phase bushing provided in the bushing connecting portion so that the upper portion is inclined toward the non-transmission line side, and the bushing connection so that the upper portion is inclined toward the transmission line side and away from the intermediate phase A gas-insulated switchgear comprising an end-phase bushing provided in a section.

更に、第3の発明は、2回線以上隣接して設置されるブッシング部を有するガス絶縁開閉装置において、各回線とも開閉器の送電線側に設けられた接続母線の軸線と直交し上方に立ち上がるように分岐して設けた各相のブッシング接続部と、上部が送電線側に向かって傾斜するように前記一方の接続母線側のブッシング接続部に設けた中相のブッシングと、上部が反送電線側でかつ中相から遠ざかる方向に傾斜するように前記一方の接続母線側のブッシング接続部に設けた端相のブッシングと、上部が反送電線側に向かって傾斜するように前記一方の接続母線に相隣する他方の接続母線側のブッシング接続部に設けた中相のブッシングと、上部が送電線側でかつ中相から遠ざかる方向に傾斜するように前記一方の接続母線に相隣する他方の接続母線側のブッシング接続部に設けた端相のブッシングとを備えたことを特徴とするガス絶縁開閉装置にある。   Further, according to a third aspect of the present invention, in the gas insulated switchgear having a bushing portion installed adjacent to two or more lines, each line rises perpendicularly to the axis of the connecting bus provided on the power transmission line side of the switch. The bushing connection part of each phase provided by branching in this way, the intermediate phase bushing provided in the bushing connection part on the one connection bus side so that the upper part is inclined toward the transmission line side, and the upper part are retransmitted. The bushing of the end phase provided in the bushing connection part on the one connection bus side so as to incline in the direction away from the middle phase on the electric wire side and the one connection so that the upper part inclines toward the non-transmission line side The bushing of the middle phase provided in the bushing connection part on the side of the other connection bus adjacent to the bus, and the other adjacent to the one connection bus so that the upper part is inclined in the direction away from the intermediate phase on the power transmission line side Contact In the gas insulated switchgear is characterized in that a bushing provided end phase bushing connecting portion of the bus side.

また、第4の発明は、第1乃至第3の発明のいずれかのガス絶縁開閉装置において、前記ブッシング接続部は、接続母線から分岐した分岐タンクと、この分岐タンクに接続した分岐部とで構成したことを特徴とするガス絶縁開閉装置にある。   According to a fourth aspect of the present invention, in the gas insulated switchgear according to any one of the first to third aspects of the invention, the bushing connection portion includes a branch tank branched from a connection bus and a branch portion connected to the branch tank. The gas insulated switchgear is characterized by comprising.

更に、第5の発明は、第1乃至第3の発明のいずれかのガス絶縁開閉装置において、前記各相のブッシング接続部に分岐部を設け、それぞれに避雷器を接続したことを特徴とするガス絶縁開閉装置にある。   Further, the fifth invention is the gas insulated switchgear according to any one of the first to third inventions, wherein a branching portion is provided in the bushing connection portion of each phase, and a lightning arrester is connected to each of the gas bushing connection portions. Insulated switchgear.

更に、第6の発明は、第5の発明のガス絶縁開閉装置において、前記ブッシング接続部に分岐部を設け、計器用変圧器を接続したことを特徴とするガス絶縁開閉装置にある。   Furthermore, a sixth invention is the gas insulated switchgear according to the fifth invention, characterized in that a branching portion is provided in the bushing connecting part and an instrument transformer is connected.

また、第7の発明は、第1乃至第3の発明のいずれかのガス絶縁開閉装置において、前記中相のブッシング上部課電部と2つの端相のブッシング上部課電部とを真上から見て正三角形の各頂点に配置したことを特徴とするガス絶縁開閉装置にある。   According to a seventh aspect of the present invention, in the gas insulated switchgear according to any one of the first to third aspects, the middle-phase bushing upper voltage applying section and the two end-phase bushing upper voltage-imparting sections The gas insulated switchgear is characterized in that it is arranged at each vertex of an equilateral triangle.

本発明によれば、ブッシングの相間絶縁距離を確保した配置構成により、このブッシング部の設置に必要なスペース及び接続母線長を短縮することができるので、その据付面積及びその基礎となるコンクリート面積が縮小し、その設備費、維持費等を著しく低減することができる。   According to the present invention, the space required for the installation of the bushing and the length of the connection busbar can be shortened by the arrangement configuration that secures the inter-phase insulation distance of the bushing. It is possible to reduce the facility cost, maintenance cost, etc. significantly.

以下、本発明のガス絶縁開閉装置の実施形態を図面を用いて説明する。
図1は、本発明のガス絶縁開閉装置の一実施の形態を示す平面図、図2は図1の正面図、図3は図2のIII−III矢視から見た拡大断面図である。これらの図おいて、据付基礎1には母線2が設置されている。母線2はそのタンク内に母線導体を配設し、その内部に絶縁ガスを封入したガス絶縁主母線を構成している。
Hereinafter, embodiments of the gas insulated switchgear according to the present invention will be described with reference to the drawings.
1 is a plan view showing an embodiment of a gas insulated switchgear according to the present invention, FIG. 2 is a front view of FIG. 1, and FIG. 3 is an enlarged cross-sectional view as seen from the direction of arrows III-III in FIG. In these drawings, a bus bar 2 is installed on the installation foundation 1. The bus 2 constitutes a gas-insulated main bus in which a bus conductor is disposed in a tank and an insulating gas is sealed inside the bus.

母線2には送電線回線3が図1に示すように主母線2と直交して分岐されている。この送電線回線3は、母線2の三相の母線導体に接続するガス絶縁分岐母線4と、これらの分岐母線4に接続する三相一括形のガス絶縁接続母線5と、この接続母線5に接続する送電線側ブッシング部6とを備え、据付基礎1上に配置されている。   A power transmission line 3 is branched from the bus 2 perpendicularly to the main bus 2 as shown in FIG. The power transmission line 3 includes a gas-insulated branch bus 4 connected to the three-phase bus conductor of the bus 2, a three-phase gas-insulated connection bus 5 connected to the branch bus 4, and a connection bus 5 The power transmission line side bushing unit 6 to be connected is provided and disposed on the installation foundation 1.

ガス絶縁分岐母線4には、母線2上にそれぞれ三相の母線導体に接続するように設置した断路器7と、これらの断路器7にそれぞれ接続した遮断器8と、これらの遮断器8の両側にそれぞれ設けた変流器9と、送電線側の変流器9に接続した断路器10とが送電線側に向かって順次配置されている。   The gas-insulated branch bus 4 includes disconnectors 7 installed on the bus 2 so as to be connected to the three-phase bus conductors, circuit breakers 8 connected to the disconnectors 7, and the circuit breakers 8. A current transformer 9 provided on each side and a disconnector 10 connected to the current transformer 9 on the power transmission line side are sequentially arranged toward the power transmission line side.

送電線側ブッシング部6における接続母線5の端部には、図3に示すように垂直方向に設けた中相のブッシング接続部11と、側方から垂直方向に立ち上がる両端相のブッシング接続部12,13が設けられている。中相のブッシング接続部11には、分岐部14が、また両端相のブッシング接続部12,13には、分岐部15,16がそれぞれ設けられている。   As shown in FIG. 3, a middle-phase bushing connection portion 11 provided in the vertical direction and a bushing connection portion 12 in both end phases rising in the vertical direction from the side are provided at the ends of the connection bus 5 in the power transmission line-side bushing portion 6. , 13 are provided. The intermediate phase bushing connection portion 11 is provided with a branch portion 14, and the both-end bushing connection portions 12 and 13 are provided with branch portions 15 and 16.

中相の分岐部14及び端相の分岐部15,16には、図1に示すようにその送電線側に避雷器17が、またその接続母線5側に計器用変圧器18が対向し、図2に示すように同じ高さに設置されている。この例では計器用変圧器18を3相ともに設置しているが、いずれかの1相だけに設置する場合がある。   As shown in FIG. 1, the lightning arrester 17 is opposed to the intermediate phase branching portion 14 and the end phase branching portions 15 and 16, and the instrument transformer 18 is opposed to the connecting bus 5 side. 2 are installed at the same height. In this example, the instrument transformer 18 is installed in all three phases, but may be installed in only one of the phases.

中相の分岐部14及び端相の分岐部15,16には、図3に示すようにその上部にブッシング接続用の接続口19,20,21をそれぞれ備えている。これらの接続口19,20,21には、ブッシング支持部22,23,24を介してブッシング25,26,27がそれぞれ設置されている。   As shown in FIG. 3, the middle-phase branch portion 14 and the end-phase branch portions 15 and 16 are respectively provided with connection ports 19, 20, and 21 for bushing connection. Bushings 25, 26, and 27 are installed at these connection ports 19, 20, and 21 via bushing support portions 22, 23, and 24, respectively.

中相のブッシング26は、その上部が接続母線5の中心線方向でかつ送電線側に位置するように傾斜している。また、端相のブッシング25,27は、その上部が接続母線5側(反送電線側)でかつ中相から遠ざかる方向に位置するように傾斜している。これらのブッシング25,26,27の配置により、これらのブッシング25,26,27の先端の課電部は、図1に示すように真上から見て、三角形の頂点に配置される。   The middle-phase bushing 26 is inclined so that the upper portion thereof is positioned in the direction of the center line of the connection bus 5 and on the power transmission line side. Further, the bushings 25 and 27 of the end phases are inclined so that the upper portions thereof are located on the connection bus 5 side (the anti-power transmission line side) and in the direction away from the middle phase. Due to the arrangement of these bushings 25, 26, 27, the power application section at the tips of these bushings 25, 26, 27 is arranged at the vertices of the triangle when viewed from directly above as shown in FIG.

各相の避雷器17は図1に示すようにブッシング接続部の送電線側に並設されている。これら各相の避雷器17における送電線側には、避雷器17の付属品箱28が設置されている。従来はブッシングの気中絶縁距離により各相の避雷器17の設置位置も離れていたが、本発明の構成を使用することにより、各相の避雷器17間の設置位置が近くなるので、その点検作業が容易になる。   As shown in FIG. 1, the lightning arresters 17 for each phase are arranged in parallel on the power transmission line side of the bushing connection portion. An accessory box 28 of the lightning arrester 17 is installed on the power transmission line side of the lightning arrester 17 of each phase. Conventionally, the installation positions of the lightning arresters 17 of the respective phases are also separated due to the air insulation distance of the bushing. However, by using the configuration of the present invention, the installation positions between the lightning arresters 17 of the respective phases are close. Becomes easier.

また、ブッシング部6の近傍の1箇所には、ブッシング25〜27,ブッシング接続部11〜13、避雷器17及び計器用変圧器18に接続され、その内部のガス圧を監視するためのガス監視装置29が設置されている。従来はブッシングの気中絶縁距離により各相のブッシング、避雷器、計器用変圧器の設置位置が離れていたため、ガス監視装置29も各相毎に設置していたが、本発明の構成を使用することにより、各相の機器間をガス配管で容易に接続することが可能となり、ガス監視装置29も3相で1箇所に集約できる。これにより、ブッシング部の各機器のガス圧点検作業が容易になる。   Further, a gas monitoring device for monitoring the gas pressure inside the bushing unit 6 is connected to the bushings 25 to 27, the bushing connection units 11 to 13, the lightning arrester 17 and the instrument transformer 18 at one place in the vicinity of the bushing unit 6. 29 is installed. Conventionally, since the installation positions of the bushings of each phase, the lightning arrester, and the instrument transformer are separated by the air insulation distance of the bushings, the gas monitoring device 29 is also installed for each phase, but the configuration of the present invention is used. This makes it possible to easily connect the devices of each phase by gas piping, and the gas monitoring device 29 can also be integrated into one place with three phases. Thereby, the gas pressure inspection work of each apparatus of a bushing part becomes easy.

次に、上述した本発明のガス絶縁開閉装置の一実施の形態の動作を図1乃至図3を用いて説明する。
送電線側ブッシング部6における接続母線5の端部には、図3に示すように垂直方向に設けた中相のブッシング接続部11、側方から垂直方向に立ち上がる両端相のブッシング接続部12、13が設けられている。そして、これらのブッシング接続部11,12,13にはブッシング支持部22,23,24を介してそれぞれブッシング25,26,27が設置され、中相のブッシング26は、その上部が接続母線5の中心線方向でかつ送電線側に位置するように傾斜している。また、端相のブッシング25,27は、その上部が接続母線5側(反送電線側)でかつ中相から遠ざかる方向に位置するように傾斜している。
Next, the operation of the above-described embodiment of the gas insulated switchgear according to the present invention will be described with reference to FIGS.
At the end of the connection bus 5 in the power transmission line side bushing section 6, as shown in FIG. 3, a middle phase bushing connection section 11 provided in the vertical direction, a bushing connection section 12 of both end phases rising in the vertical direction from the side, 13 is provided. Bushings 25, 26, 27 are installed in these bushing connection portions 11, 12, 13 via bushing support portions 22, 23, 24, respectively, and an upper portion of the intermediate phase bushing 26 is connected to the connection bus 5. It inclines so that it may be located in the center line direction and the power transmission line side. Further, the bushings 25 and 27 of the end phases are inclined so that the upper portions thereof are located on the connection bus 5 side (the anti-power transmission line side) and in the direction away from the middle phase.

これらのブッシング25,26,27の配置により、これらのブッシング25,26,27の先端の課電部は、図1に示すように真上から見て、三角形の頂点に配置されるので、各ブッシング頭部の相間気中絶縁距離を最大限に確保することができる。   Due to the arrangement of these bushings 25, 26, 27, the power application section at the tip of these bushings 25, 26, 27 is arranged at the apex of the triangle when viewed from directly above as shown in FIG. The insulation distance between the bushing heads in the air can be secured to the maximum.

一方、ブッシングの基部側は、接続母線5の端部に集中的に配置したので、据付面積及び基礎となるコンクリート付設面積が縮小され、その設備費及び維持費を削減することができる。   On the other hand, the base side of the bushing is concentrated at the end of the connection bus 5, so that the installation area and the foundation concrete installation area are reduced, and the equipment cost and maintenance cost can be reduced.

また、接続母線5の端部に避雷器17及び計器用変圧器18を集中的に配置することができるので、その監視およびメンテナンス性が向上する。   In addition, since the lightning arrester 17 and the instrument transformer 18 can be centrally arranged at the end of the connection bus 5, the monitoring and maintenance are improved.

本発明の実施の形態によれば、上述したブッシング25,26,27の配置構成により、相間気中絶縁距離を確保することができるとともに、据付面積が縮小され、これに伴い、据付工事のための作業及びコストを削減することができる。   According to the embodiment of the present invention, the arrangement configuration of the bushings 25, 26, 27 described above can secure the inter-phase air insulation distance, and the installation area is reduced. Work and costs can be reduced.

図4及び図5は、本発明のガス絶縁開閉装置における送電線側ブッシングの他の実施の形態を示すもので、図4はその平面図、図4はその正面図で、これらの図において、図1乃至図3と同符号のものは同一または相当する部分である。この実施の形態は、中相のブッシング26を、その上部が接続母線5の中心線方向でかつ接続母線5側(反送電線側)に位置するように傾斜して設置し、また、端相のブッシング25,27を、その上部が送電線側でかつ中相から遠ざかる方向に位置するように傾斜して設置して構成したものである。これらのブッシング25,26,27の先端の課電部は、上述した実施の形態と同様に図4に示すように真上から見て、三角形の頂点に配置される。   4 and 5 show another embodiment of the transmission line side bushing in the gas insulated switchgear of the present invention, FIG. 4 is a plan view thereof, FIG. 4 is a front view thereof, and in these drawings, 1 to 3 are the same or corresponding parts. In this embodiment, the middle-phase bushing 26 is installed so as to be inclined so that the upper portion thereof is located in the direction of the center line of the connection bus 5 and on the connection bus 5 side (the anti-transmission line side). The bushings 25 and 27 are installed so as to be inclined so that their upper portions are located on the power transmission line side and away from the middle phase. As shown in FIG. 4, the power application section at the tip of these bushings 25, 26, and 27 is arranged at the apex of the triangle when viewed from directly above as shown in FIG. 4.

この実施の形態によれば、ブッシング25,26,27の先端の課電部には、これに引き込まれる送電線が接続されるが、前述したように端相のブッシング25,27は、中相のブッシング23に対して対向するように傾斜配置した結果、これらのブッシング25,26,27の相間気中絶縁距離を極力大きく確保することができる。   According to this embodiment, the power transmission section drawn into this is connected to the power application section at the tip of the bushings 25, 26, 27. As described above, the bushings 25, 27 in the end phase are intermediate phases. As a result of the inclined arrangement so as to face the bushing 23, the inter-air insulation distance between the bushings 25, 26 and 27 can be secured as much as possible.

そして、上述したブッシング25,26,27の配置構成により、これに接続する接続母線の長さが短縮される。その結果、前述した実施の形態と同様に、据付面積が縮小され、これに伴い、据付工事のための作業及びコストを削減することができる。   The length of the connecting bus connected to the bushings 25, 26, 27 is shortened by the arrangement of the bushings 25, 26, 27 described above. As a result, similarly to the above-described embodiment, the installation area is reduced, and accordingly, the work and cost for the installation work can be reduced.

図6は、本発明のガス絶縁開閉装置の他の実施の形態を示す平面図で、この図において、図1乃至図5と同符号のものが同一または相当する部分である。この実施の形態は、母線2に、母線連絡回線30、変圧器31への変圧器回線32及び2つの送電線回線3,3を備える送電回路において、2つの送電線回線3,3における一方の送電線側ブッシング部6を、図1及び図2に示すようなその上部が接続母線5の中心線方向でかつ送電線側に位置するように傾斜させた中相のブッシング26と、その上部が接続母線5側(反送電線側)でかつ中相から遠ざかる方向に位置するように傾斜させた端相のブッシング25,27とで配置構成し、また、もう一方側の送電線側ブッシング部6を、図4及び図5に示すような中相のブッシング26を、その上部が接続母線5の中心線方向でかつ接続母線5側(反送電線側)に位置するように傾斜して設置し、また、端相のブッシング25,27を、その上部が送電線側でかつ中相から遠ざかる方向に位置するように傾斜して設置して構成したものである。   FIG. 6 is a plan view showing another embodiment of the gas-insulated switchgear according to the present invention, in which the same reference numerals as those in FIGS. 1 to 5 denote the same or corresponding parts. In this embodiment, in the power transmission circuit including the bus 2, the bus connection line 30, the transformer line 32 to the transformer 31, and the two power transmission lines 3, 3, one of the two power transmission lines 3, 3 The transmission line side bushing 6 is inclined so that the upper part thereof is located in the direction of the center line of the connection bus 5 and on the transmission line side, as shown in FIGS. It is arranged and configured with end-phase bushings 25 and 27 that are inclined so as to be located in the direction away from the middle phase on the side of the connecting bus 5 (on the side opposite to the transmission line), and the transmission line-side bushing 6 on the other side. 4 and FIG. 5 are installed so that the middle-phase bushing 26 is inclined so that the upper portion thereof is located in the direction of the center line of the connection bus 5 and on the connection bus 5 side (the anti-transmission line side). Also, the bushings 25 and 27 of the end phase Parts are those constituted by inclined to installed so as to be located away from the power transmission line side a and the medium phase.

この実施の形態によれば、母線2から分岐した送電線回線先端側に、それぞれその相間気中絶縁距離を極力大きく確保した送電線側ブッシング部6を設置することができるとともに、並設した送電線回線先端側における送電線側ブッシング部6、6間の気中絶縁距離も確保することができるので、据付面積を縮小することができ、据付工事のための作業及びコストを削減することができる。   According to this embodiment, it is possible to install the transmission line side bushing 6 that secures the inter-phase air insulation distance as much as possible at the front end side of the transmission line that branches off from the bus 2, as well as the transmission line arranged in parallel. Since the air insulation distance between the transmission line side bushings 6 and 6 on the front end side of the electric wire line can be secured, the installation area can be reduced, and the work and cost for the installation work can be reduced. .

また、接続母線5の端部に避雷器17及び計器用変流器18を集中的に配置することができるので、その監視およびメンテナンス性が向上する。   In addition, since the lightning arrester 17 and the instrument current transformer 18 can be centrally arranged at the end of the connection bus 5, its monitoring and maintenance are improved.

なお、上述の実施の形態においては、中相のブッシング接続部11、両端相のブッシング接続部12,13に、分岐部14,15,16をそれぞれ設けたが、中相のブッシング接続部11、両端相のブッシング接続部12,13にそれぞれ一体的に構成することも可能である。また、上述の実施の形態においては、母線2を2本設けた例を示したが、1本の場合の例についても適用可能である。   In the above-described embodiment, the branch portions 14, 15 and 16 are provided in the bushing connection portion 11 of the medium phase and the bushing connection portions 12 and 13 of the both end phases, respectively, but the intermediate phase bushing connection portion 11, It is also possible to integrally form the bushing connecting portions 12 and 13 at both ends. Moreover, in the above-mentioned embodiment, although the example which provided the two bus-bars 2 was shown, it is applicable also to the example in the case of one.

本発明のガス絶縁開閉装置の一実施の形態を示す平面図である。It is a top view which shows one Embodiment of the gas insulated switchgear of this invention. 図1に示す本発明のガス絶縁開閉装置の一実施の形態の正面図である。It is a front view of one Embodiment of the gas insulated switchgear of this invention shown in FIG. 図2に示す本発明のガス絶縁開閉装置をIII−III矢視から見た拡大断面図である。It is the expanded sectional view which looked at the gas insulated switchgear of the present invention shown in Drawing 2 from the III-III arrow. 本発明のガス絶縁開閉装置における送電線側ブッシングの他の実施の形態を示す平面図である。It is a top view which shows other embodiment of the power transmission line side bushing in the gas insulated switchgear of this invention. 図4に示す本発明のガス絶縁開閉装置における送電線側ブッシングの他の実施の形態の正面図である。It is a front view of other embodiment of the power transmission line side bushing in the gas insulated switchgear of this invention shown in FIG. 本発明のガス絶縁開閉装置の他の実施の形態の平面図である。It is a top view of other embodiment of the gas insulated switchgear of this invention.

符号の説明Explanation of symbols

1 基礎コンクリート
2 主母線
3 送電線回線
4 ガス絶縁分岐母線
5 接続母線
6 ブッシング部
11 中相のブッシング接続部
12 端相のブッシング接続部
13 端相のブッシング接続部
14 中相の分岐部
15 端相の分岐部
16 端相の分岐部
26 中相のブッシング
25 端相のブッシング
27 端相のブッシング
DESCRIPTION OF SYMBOLS 1 Basic concrete 2 Main bus line 3 Power transmission line 4 Gas insulation branch bus 5 Connection bus 6 Bushing part 11 Middle phase bushing connection part 12 End phase bushing connection part 13 End phase bushing connection part 14 Middle phase branch part 15 End Phase bifurcation 16 End phase bifurcation 26 Middle phase bushing 25 End phase bushing 27 End phase bushing

Claims (7)

開閉器の送電線側に接続母線とブッシング部を有するガス絶縁開閉装置において、前記接続母線の軸線と直交し上方に立ち上がるように分岐して設けた各相のブッシング接続部と、上部が送電線側に向かって傾斜するように前記ブッシング接続部に設けた中相のブッシングと、上部が反送電線側でかつ中相から遠ざかる方向に傾斜するように前記ブッシング接続部に設けた端相のブッシングとを備えたことを特徴とするガス絶縁開閉装置。   In a gas-insulated switchgear having a connection bus and a bushing on the power transmission line side of the switch, the bushing connection for each phase provided so as to be perpendicular to the axis of the connection bus and rise upward, and the upper part is a power transmission line The intermediate phase bushing provided in the bushing connection portion so as to be inclined toward the side, and the end phase bushing provided in the bushing connection portion so that the upper portion is inclined in the direction away from the intermediate phase on the side opposite to the power transmission line. A gas insulated switchgear characterized by comprising: 開閉器の送電線側に接続母線とブッシング部を有するガス絶縁開閉装置において、前記接続母線の軸線と直交し上方に立ち上がるように分岐して設けた各相のブッシング接続部と、上部が反送電線側に向かって傾斜するように前記ブッシング接続部に設けた中相のブッシングと、上部が送電線側でかつ中相から遠ざかる方向に傾斜するように前記ブッシング接続部に設けた端相のブッシングとを備えたことを特徴とするガス絶縁開閉装置。   In a gas-insulated switchgear having a connection bus and a bushing on the power transmission line side of the switch, the bushing connection of each phase provided so as to be perpendicular to the axis of the connection bus and rise upward, and the upper part are countersent A middle-phase bushing provided in the bushing connection part so as to incline toward the electric wire side, and an end-phase bushing provided in the bushing connection part so that the upper part inclines in a direction away from the intermediate phase on the power transmission line side. A gas insulated switchgear characterized by comprising: 2回線以上隣接して設置されるブッシング部を有するガス絶縁開閉装置において、各回線とも開閉器の送電線側に設けられた接続母線の軸線と直交し上方に立ち上がるように分岐して設けた各相のブッシング接続部と、上部が送電線側に向かって傾斜するように前記一方の接続母線側のブッシング接続部に設けた中相のブッシングと、上部が反送電線側でかつ中相から遠ざかる方向に傾斜するように前記一方の接続母線側のブッシング接続部に設けた端相のブッシングと、上部が反送電線側に向かって傾斜するように前記一方の接続母線に相隣する他方の接続母線側のブッシング接続部に設けた中相のブッシングと、上部が送電線側でかつ中相から遠ざかる方向に傾斜するように前記一方の接続母線に相隣する他方の接続母線側のブッシング接続部に設けた端相のブッシングとを備えたことを特徴とするガス絶縁開閉装置。   In a gas-insulated switchgear having a bushing portion installed adjacent to two or more lines, each line is provided so as to be branched so as to rise perpendicularly to the axis of the connecting bus provided on the power transmission line side of the switch Phase bushing connection part, middle phase bushing provided on the bushing connection part on the one connection bus side so that the upper part is inclined toward the transmission line side, and the upper part is on the non-transmission line side and away from the middle phase The bushing of the end phase provided in the bushing connection part on the one connection bus side so as to be inclined in the direction, and the other connection adjacent to the one connection bus line so that the upper part is inclined toward the non-transmission line side A bushing on the middle phase provided on the bushing connection on the bus side and a bushing on the other side of the connection bus adjacent to the one connection bus so that the upper part is inclined toward the transmission line and away from the middle phase Gas insulated switchgear is characterized in that a bushing end phase provided in connection part. 前記ブッシング接続部は、接続母線から分岐した分岐タンクと、この分岐タンクに接続した分岐部とで構成したことを特徴とする請求項1乃至3のいずれかに記載のガス絶縁開閉装置。   The gas insulated switchgear according to any one of claims 1 to 3, wherein the bushing connection portion is constituted by a branch tank branched from a connection bus and a branch portion connected to the branch tank. 前記各相のブッシング接続部に分岐部を設け、それぞれに避雷器を接続したことを特徴とする請求項1乃至3に記載のガス絶縁開閉装置。   The gas-insulated switchgear according to any one of claims 1 to 3, wherein a branching portion is provided in the bushing connection portion of each phase, and a lightning arrester is connected to each branching portion. 前記ブッシング接続部に分岐部を設け、計器用変圧器を接続したことを特徴とする請求項5に記載のガス絶縁開閉装置。   6. The gas insulated switchgear according to claim 5, wherein a branching portion is provided in the bushing connection portion and an instrument transformer is connected thereto. 前記中相のブッシング上部課電部と2つの端相のブッシング上部課電部とを真上から見て略正三角形の各頂点に配置したことを特徴とする請求項1乃至3に記載のガス絶縁開閉装置。   The gas according to any one of claims 1 to 3, wherein the middle-phase bushing upper voltage applying section and the two end-phase bushing upper voltage applying sections are arranged at respective vertices of a substantially equilateral triangle when viewed from directly above. Insulated switchgear.
JP2005005965A 2005-01-13 2005-01-13 Gas insulated switchgear Active JP4416667B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005005965A JP4416667B2 (en) 2005-01-13 2005-01-13 Gas insulated switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005005965A JP4416667B2 (en) 2005-01-13 2005-01-13 Gas insulated switchgear

Publications (2)

Publication Number Publication Date
JP2006197708A true JP2006197708A (en) 2006-07-27
JP4416667B2 JP4416667B2 (en) 2010-02-17

Family

ID=36803323

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005005965A Active JP4416667B2 (en) 2005-01-13 2005-01-13 Gas insulated switchgear

Country Status (1)

Country Link
JP (1) JP4416667B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101333569B1 (en) 2012-07-12 2013-11-28 주식회사 베스텍 Tri angle bus line high and low voltage switch cear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101333569B1 (en) 2012-07-12 2013-11-28 주식회사 베스텍 Tri angle bus line high and low voltage switch cear

Also Published As

Publication number Publication date
JP4416667B2 (en) 2010-02-17

Similar Documents

Publication Publication Date Title
JP4512648B2 (en) Switchgear
JPWO2008075436A1 (en) Gas insulated switchgear
JP4686392B2 (en) Gas insulated switchgear
KR870006603A (en) Gas Insulated Switchgear
JPWO2009057218A1 (en) Gas insulated switchgear
EP2958205A1 (en) Gas-insulated switchgear
US6459569B1 (en) Switchgear
JP4416667B2 (en) Gas insulated switchgear
JP5452780B1 (en) Gas insulated switchgear
JP4896786B2 (en) Gas insulated switchgear
CN104143777A (en) Gas-insulated metal-enclosed switchgear and single phase thereof
KR101633768B1 (en) Solid Insulated Switches for Distribution Automation System
JP4397671B2 (en) Gas insulated switchgear
JP3169251B2 (en) Gas insulated switchgear
JP4346172B2 (en) Gas insulated switchgear
JPH02266806A (en) Compressed-gas-insulated switchgear
KR940004702Y1 (en) Gas-insulated switchgear
JPH07123547A (en) Gas insulated switchgear
JP2000134732A (en) Gas-insulated switchgear
JPH05130719A (en) Gas-insulated switching equipment
JP5025536B2 (en) Gas insulated switchgear
RU2001123706A (en) OUTDOOR MULTIPHASED CLOSED HIGH VOLTAGE DISTRIBUTION DEVICE
KR910008946Y1 (en) Gas insulated switchgear
JPH10285728A (en) Gas-insulated switchgear
JPH10257624A (en) Gas-insulated switchgear

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20061212

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20090417

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090421

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090604

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20091006

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20091020

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20091117

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20091124

R150 Certificate of patent or registration of utility model

Ref document number: 4416667

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121204

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121204

Year of fee payment: 3

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121204

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121204

Year of fee payment: 3

R371 Transfer withdrawn

Free format text: JAPANESE INTERMEDIATE CODE: R371

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121204

Year of fee payment: 3

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121204

Year of fee payment: 3

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131204

Year of fee payment: 4