JPH10229616A - Gas insulation switching device - Google Patents

Gas insulation switching device

Info

Publication number
JPH10229616A
JPH10229616A JP9033589A JP3358997A JPH10229616A JP H10229616 A JPH10229616 A JP H10229616A JP 9033589 A JP9033589 A JP 9033589A JP 3358997 A JP3358997 A JP 3358997A JP H10229616 A JPH10229616 A JP H10229616A
Authority
JP
Japan
Prior art keywords
lightning arrester
voltage
shield
voltage conductor
current collector
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.)
Pending
Application number
JP9033589A
Other languages
Japanese (ja)
Inventor
Hiroshi Ozawa
博 小澤
Kenichi Okubo
健一 大久保
Kazuhiko Takahashi
和彦 高橋
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.)
Hitachi Ltd
Original Assignee
Hitachi 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.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9033589A priority Critical patent/JPH10229616A/en
Publication of JPH10229616A publication Critical patent/JPH10229616A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C7/00Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/12Overvoltage protection resistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

PROBLEM TO BE SOLVED: To relieve the electric field of an electrode at the time of separation for minimizing the displacement to operate a lightning arrester by connecting a current collector on body side at a shield inside, using a shield whose curvature is large at the top of the lightning arrester. SOLUTION: A disconnect part is formed between a lightning arrester 11 and a high-voltage conductor 4b for separating the lightning arrester 11 from the high-voltage conductor 4b so as to apply no voltage to the lightning arrester 11 at the time of withstand voltage insulation test for a gas insulation switching device. A current collector 7d on body side is connected, using the shield 13 whose curvature is large, at the inside of the shield 13 so as to minimize the displacement of the disconnect part. It is thus possible to relieve the electric field of an electrode at the time of separation for minimizing the displacement to operate the lightning arrester 11, and simplify the inside of a sealing container filled with insulating gas for size reduction.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】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.

【0002】[0002]

【従来の技術】従来の構造を図3に示す。すなわち、高
電圧導体4bと避雷器11は集電子7dを介して接続さ
れており、電界緩和のためにシールド13が備えられて
いる。しかし、集電子7dの曲率半径が小さいので、耐
電圧絶縁試験時にこの部分を切離すがその際、絶縁性能
を十分満足するのに避雷器の変位量を大きくし、絶縁ギ
ャップを確保する必要があった。
2. Description of the Related Art FIG. 3 shows a conventional structure. That is, the high-voltage conductor 4b and the lightning arrester 11 are connected via the current collector 7d, and the shield 13 is provided to alleviate the electric field. However, since the radius of curvature of the current collector 7d is small, this part is cut off during the withstand voltage insulation test. Was.

【0003】また避雷器11は集電子7dを介して高電
圧導体4bに接続され、高電圧導体4bは避雷器用断路
器5bの可動子6bを介して本体に接続されている。こ
の構造で、ガス絶縁開閉装置の耐電圧試験時に避雷器1
1を高電圧導体4bと切離すために避雷器11と高電圧
導体4b間に設けられた断路部用操作器5bを操作する
ことによって、断路器の可動子6bは図面右側に移動し
極間を形成する。従って、固定側集電子7cおよび高電
圧導体4cで形成される極間は絶縁ギャップを十分確保
する必要があるため、ガス絶縁開閉装置の横方向の寸法
が増大する原因にもなっていた。この構造では、切離し
のための部品点数が多く、また導体支持用ポストスペー
サ15等も数多く必要となり密閉容器内はかなり入り組
んだ構造となっていた。
The lightning arrester 11 is connected to the high voltage conductor 4b via a current collector 7d, and the high voltage conductor 4b is connected to the main body via the movable element 6b of the lightning arrester disconnector 5b. With this structure, the surge arrester 1
By operating the disconnecting section operating device 5b provided between the lightning arrester 11 and the high-voltage conductor 4b to separate 1 from the high-voltage conductor 4b, the movable element 6b of the disconnector moves to the right in the drawing and moves between the poles. Form. Therefore, it is necessary to ensure a sufficient insulation gap between the poles formed by the fixed-side current collector 7c and the high-voltage conductor 4c, which causes an increase in the lateral dimension of the gas-insulated switchgear. In this structure, the number of parts for separation is large, and a large number of conductor supporting post spacers 15 and the like are required, so that the inside of the sealed container is considerably complicated.

【0004】これとは別に、シース1に集電子7cが黙
視できる位置にハンドホール(図示せず)を設け、その
ハンドホールを利用して集電子7cを取り外し避雷器1
1を高電圧側導体4bから切離す方法もある。上記方法
では、高電圧側導体4bを取り外す前にシース1に充填
されている絶縁ガスを回収した後、ハンドホールカバー
を取外し、ハンドホールから高電圧側導体4bを取外
す。この作業が終わるとハンドホールカバーを取付け、
絶縁ガスをシース1に充填し、ガス絶縁開閉装置の耐電
圧試験を実施している。図4に高電圧側導体と避雷器の
「入」,「切」状態の詳細図を示す。
[0004] Separately, a handhole (not shown) is provided in the sheath 1 at a position where the current collector 7c can be viewed silently.
1 may be separated from the high voltage side conductor 4b. In the above method, before the high-voltage side conductor 4b is removed, the insulating gas filled in the sheath 1 is recovered, the handhole cover is removed, and the high-voltage side conductor 4b is removed from the handhole. After this work, attach the handhole cover,
The insulating gas is filled in the sheath 1, and a withstand voltage test of the gas insulated switchgear is performed. FIG. 4 shows a detailed view of the “on” and “off” states of the high-voltage side conductor and the lightning arrester.

【0005】なお、この種のガス絶縁開閉装置に関連す
るものとして、例えば特開昭60−183908号,特開平4−4
3519号公報等が挙げられる。
Japanese Patent Application Laid-Open No. 60-183908 and Japanese Patent Application Laid-Open No.
No. 3519, and the like.

【0006】[0006]

【発明が解決しょうとする課題】従来技術では、ガス絶
縁開閉装置の構造が複雑であり高電圧導体と避雷器間に
形成される断路部の操作機構部をガス中に設けているた
め、密閉容器内にて多大な面積を占めていた。また、従
来技術のままで高電圧導体4bから避雷器を引き離そう
とすると、集電子の曲率半径が小さいため、電界的に問
題となるため、変位量を大きくする必要があり、ガス絶
縁開閉装置の縮小化に限界がある。
In the prior art, the structure of the gas insulated switchgear is complicated, and the operating mechanism of the disconnecting portion formed between the high-voltage conductor and the lightning arrester is provided in the gas. Occupied a large area within. Also, if the lightning arrester is to be separated from the high-voltage conductor 4b with the conventional technology, the radius of curvature of the current collector is small, which causes a problem in the electric field. Therefore, it is necessary to increase the displacement, and the size of the gas insulated switchgear is reduced. There is a limit to conversion.

【0007】[0007]

【課題を解決するための手段】上記目的を達成するため
に、本発明は避雷器切離し構造で、避雷器自身を動作さ
せることにより高電圧導体と避雷器間で形成される断路
部の変位量を小さくできるよう、避雷器上部に曲率が大
きいシールドを用い、本体側の集電子をシールド内部で
接続することにより、切離し時の電極の電界が緩和され
避雷器を動作させる変位量を最小限にしている。避雷器
下部の気中側に設け、タンク内の簡素化を図ることがで
きる構造である。
In order to achieve the above-mentioned object, the present invention provides a lightning arrester disconnection structure, and by operating the lightning arrester itself, a displacement amount of a disconnection portion formed between the high-voltage conductor and the lightning arrester can be reduced. As described above, by using a shield having a large curvature above the lightning arrester and connecting the current collector on the main body side inside the shield, the electric field of the electrode at the time of disconnection is alleviated, and the displacement amount for operating the lightning arrester is minimized. This structure is provided on the aerial side below the lightning arrester to simplify the inside of the tank.

【0008】また高電圧導体と避雷器間に形成される断
路部の操作部を気中に設け、避雷器自身を動作させる構
造を用いることで絶縁性ガスで充填された密閉容器内を
簡素化,縮小化しようとするものである。
[0008] Further, by using a structure in which an operation portion of a disconnecting portion formed between the high-voltage conductor and the lightning arrester is provided in the air and operating the lightning arrester itself, the inside of the sealed container filled with the insulating gas is simplified and reduced. Is going to be transformed.

【0009】[0009]

【発明の実施の形態】以下に図1を参照して本発明の実
施例を示す。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

【0010】図1で、絶縁性ガスで充填させた密閉容器
1は軸線が上下方向を向くように配置された管から成
り、密閉容器1は上下および左方向に開口部が設けられ
ている。開口部2aは絶縁スペーサ3に気密に接続さ
れ、開口部2b,2cは平板で気密に閉じられている。
スペーサ3には三相の埋め込み導体が設けられ、それに
高電圧導体4aが接続されている。密閉容器1の左上に
は線路側断路器5が設けられ、密閉容器の外部に取り付
けられた操作機により連結機構を介して連結され、該操
作機構により三相の断路器が一括して動作し、可動子6
が上下に移動することで集電子7と極間を形成する。集
電子7の下側に導体4bが配置しケーブルヘッド8に接
続されている。密閉容器1の右上には接地開閉装置9が
設けられ、断路器同様、操作機構により三相の接地開閉
装置が一括して動作し、可動子10が左右に移動する。
集電子7bの左側に高電圧導体4bが配置し、集電子7
bと高電圧導体間で極間を形成する。さらに集電子7b
の下側に配置された避雷器11と高電圧側導体4bが集
電子7bを介して接続されている。開口部2Cは底板1
2で気密にふさがれ、底板12を貫通させて三相の避雷
器11およびケーブルヘッド8を接続するために6個の
孔が開けられ、この孔を気密に閉じるように避雷器11
とケーブルヘッド8がそれぞれ接続されている。
In FIG. 1, a sealed container 1 filled with an insulating gas is composed of a tube arranged so that its axis is oriented vertically, and the sealed container 1 is provided with openings in the vertical and left directions. The opening 2a is airtightly connected to the insulating spacer 3, and the openings 2b and 2c are airtightly closed by a flat plate.
The spacer 3 is provided with a three-phase buried conductor, to which the high-voltage conductor 4a is connected. A line-side disconnector 5 is provided at the upper left of the closed container 1 and is connected via a connecting mechanism by an operating device attached to the outside of the closed container, whereby the three-phase disconnectors are operated collectively by the operating mechanism. , Mover 6
Moves up and down to form a gap with the current collector 7. A conductor 4 b is arranged below the current collector 7 and connected to the cable head 8. A grounding switchgear 9 is provided at the upper right of the sealed container 1, and the three-phase grounding switchgear operates collectively by an operation mechanism like the disconnector, and the mover 10 moves left and right.
A high-voltage conductor 4b is arranged on the left side of the current collector 7b.
A gap is formed between b and the high voltage conductor. Furthermore, current collector 7b
The lightning arrester 11 and the high-voltage-side conductor 4b are connected via a current collector 7b. Opening 2C is bottom plate 1
6, six holes are formed to penetrate the bottom plate 12 and connect the three-phase lightning arrester 11 and the cable head 8, and the lightning arrester 11 is closed so that the holes are airtightly closed.
And the cable head 8 are connected respectively.

【0011】本実施例では、避雷器11下部の気中側に
操作機を設け、それが避雷器機構部14が避雷器11自
身に接続され、避雷器11を移動する構造とすることに
より、密閉容器1内部の構造を簡素化することができ
る。また図2に示しているように、避雷器シールド13
の内部に高電圧側の集電子7dを用いることにより、シ
ールドの曲率半径を大きくすることで高電圧導体4bと
避雷器11の絶縁性能が向上し、従来形に比べ電界を緩
和できるので、切離し時の避雷器11の変位量を小さく
することができる。前記構造により、密閉容器1の低層
化および導体6の形状が単純化されることによりコスト
ダウンが図れる。
In the present embodiment, an operating device is provided on the air side below the lightning arrester 11, and the lightning arrester mechanism 14 is connected to the lightning arrester 11 itself, so that the lightning arrester 11 moves. Can be simplified. Also, as shown in FIG.
By using the collector 7d on the high voltage side inside, the insulation performance of the high voltage conductor 4b and the lightning arrester 11 is improved by increasing the radius of curvature of the shield, and the electric field can be reduced as compared with the conventional type. Of the lightning arrester 11 can be reduced. With the above-described structure, the cost can be reduced by lowering the thickness of the sealed container 1 and simplifying the shape of the conductor 6.

【0012】[0012]

【発明の効果】この発明は以下の優れた効果を奏する。The present invention has the following excellent effects.

【0013】集電子を避雷器シールドの内部で接続す
ることにより、ガス絶縁開閉装置の耐電圧試験を行う
際、避雷器を高電圧導体から切離す変位量を小さくでき
る。
[0013] By connecting the current collector inside the lightning arrester shield, the displacement of separating the lightning arrester from the high-voltage conductor can be reduced when a withstand voltage test of the gas insulated switchgear is performed.

【0014】機構部を避雷器の下側の気中に設けるこ
とにより絶縁性ガスで充填された密閉容器内の簡略化お
よび縮小化が実現できる。
By providing the mechanism in the air below the surge arrester, simplification and downsizing of the closed container filled with the insulating gas can be realized.

【0015】ガス絶縁開閉装置の低層化・コストダウ
ンが図れる。
[0015] It is possible to reduce the number of layers and cost of the gas insulated switchgear.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施例を示した内部の説明図。FIG. 1 is an internal explanatory view showing an embodiment of the present invention.

【図2】本発明の避雷器上部の開閉状態の説明図。FIG. 2 is an explanatory view of the open / close state of the upper part of the lightning arrester of the present invention.

【図3】従来構造を有する線路ユニットの内部の説明
図。
FIG. 3 is an explanatory view of the inside of a line unit having a conventional structure.

【図4】従来構造の避雷器上部の開閉状態の説明図。FIG. 4 is an explanatory view of an open / closed state of an upper portion of a conventional lightning arrester.

【符号の説明】[Explanation of symbols]

1…シース、2…開口部、3…スペーサ、4…導体、5
…線路側断路器、6…断路器可動子、7…集電子、8…
ケーブルヘッド、9…接地開閉装置、10…接地器可動
子、11…避雷器、12…底板、13…避雷器シール
ド、14…避雷器機構部、15…ポストスペーサ。
DESCRIPTION OF SYMBOLS 1 ... sheath, 2 ... opening, 3 ... spacer, 4 ... conductor, 5
… Track-side disconnector, 6… disconnector mover, 7… current collector, 8…
Cable head, 9 grounding switchgear, 10 grounding armature, 11 arrester, 12 bottom plate, 13 arrester shield, 14 arrester mechanism, 15 post spacer.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】絶縁性ガスが充填された密封容器内に高電
圧導体,断路器,接地開閉器,電力ケーブル避雷器およ
び変成器を収納した三相一括ガス絶縁開閉装置におい
て、ガス絶縁開閉装置の耐電圧絶縁試験時に、上記避雷
器に電圧が印加しないよう上記避雷器を上記高電圧導体
から切離すために上記避雷器と上記高電圧導体の間に断
路部を設け、上記避雷器の下部に上記断路部を操作する
操作部を設け上記避雷器を動作させる機構において、本
体側の集電子を上記避雷器側のシールド内部に配置した
ことを特徴とするガス絶縁開閉装置。
1. A three-phase batch gas insulated switchgear having a high-voltage conductor, a disconnector, a ground switch, a power cable arrester and a transformer housed in a sealed container filled with an insulating gas. At the time of the withstand voltage insulation test, a disconnection part is provided between the lightning arrester and the high-voltage conductor to separate the lightning arrester from the high-voltage conductor so that no voltage is applied to the lightning arrester, and the disconnection part is provided below the lightning arrester. A gas-insulated switchgear, wherein a current collector on a main body side is arranged inside a shield on the lightning arrester side in a mechanism provided with an operating section for operating the lightning arrester.
【請求項2】請求項1において、上記高電圧導体部と上
記避雷器間にあった上記断路部の上記操作部を上記密閉
容器外に設けたガス絶縁開閉装置。
2. The gas insulated switchgear according to claim 1, wherein the operating portion of the disconnecting portion located between the high-voltage conductor portion and the lightning arrester is provided outside the closed vessel.
JP9033589A 1997-02-18 1997-02-18 Gas insulation switching device Pending JPH10229616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9033589A JPH10229616A (en) 1997-02-18 1997-02-18 Gas insulation switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9033589A JPH10229616A (en) 1997-02-18 1997-02-18 Gas insulation switching device

Publications (1)

Publication Number Publication Date
JPH10229616A true JPH10229616A (en) 1998-08-25

Family

ID=12390704

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9033589A Pending JPH10229616A (en) 1997-02-18 1997-02-18 Gas insulation switching device

Country Status (1)

Country Link
JP (1) JPH10229616A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000025401A1 (en) * 1998-10-27 2000-05-04 Hitachi, Ltd. Gas insulated switchgear
KR100408198B1 (en) * 2000-06-02 2003-12-03 미쓰비시덴키 가부시키가이샤 Gas insulated switch gear
WO2014048711A1 (en) * 2012-09-28 2014-04-03 Siemens Aktiengesellschaft Overvoltage arrestor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000025401A1 (en) * 1998-10-27 2000-05-04 Hitachi, Ltd. Gas insulated switchgear
KR100397393B1 (en) * 1998-10-27 2003-09-13 가부시끼가이샤 히다치 세이사꾸쇼 Gas insulated switchgear
KR100408198B1 (en) * 2000-06-02 2003-12-03 미쓰비시덴키 가부시키가이샤 Gas insulated switch gear
WO2014048711A1 (en) * 2012-09-28 2014-04-03 Siemens Aktiengesellschaft Overvoltage arrestor
CN104685580A (en) * 2012-09-28 2015-06-03 西门子公司 Overvoltage arrestor
JP2016501000A (en) * 2012-09-28 2016-01-14 シーメンス アクチエンゲゼルシヤフトSiemens Aktiengesellschaft Lightning arrestor

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