JPH1189025A - Switch gear - Google Patents

Switch gear

Info

Publication number
JPH1189025A
JPH1189025A JP9242391A JP24239197A JPH1189025A JP H1189025 A JPH1189025 A JP H1189025A JP 9242391 A JP9242391 A JP 9242391A JP 24239197 A JP24239197 A JP 24239197A JP H1189025 A JPH1189025 A JP H1189025A
Authority
JP
Japan
Prior art keywords
electrode
vacuum
switchgear
grounding
movable electrode
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
JP9242391A
Other languages
Japanese (ja)
Other versions
JP3775010B2 (en
Inventor
Toru Tanimizu
徹 谷水
Makoto Terai
誠 寺井
Ekizo Shibata
易蔵 柴田
Ayumi Morita
歩 森田
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.)
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 JP24239197A priority Critical patent/JP3775010B2/en
Priority to TW87111261A priority patent/TW389921B/en
Priority to US09/114,944 priority patent/US6144005A/en
Priority to CNB2004100859577A priority patent/CN100341088C/en
Priority to RU98114866/09A priority patent/RU2195734C2/en
Priority to CNB981163572A priority patent/CN1178253C/en
Priority to KR10-1998-0029589A priority patent/KR100472170B1/en
Priority to EP98113825A priority patent/EP0893811B1/en
Priority to DE69836300T priority patent/DE69836300T2/en
Publication of JPH1189025A publication Critical patent/JPH1189025A/en
Priority to US09/562,756 priority patent/US6259051B1/en
Application granted granted Critical
Publication of JP3775010B2 publication Critical patent/JP3775010B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003Earthing switches
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/666Operating arrangements
    • H01H33/6664Operating arrangements with pivoting movable contact structure

Landscapes

  • Gas-Insulated Switchgears (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

PROBLEM TO BE SOLVED: To reduce power loss and generated heat and improve current cut-off performance for size reduction in a vacuum grounded container on the fixed electrode side, by increasing the inside volume of the vacuum grounded container on the fixed electrode side from the center of a movable electrode positioned in the middle between a grounded electrode and a fixed electrode, more than that of a vacuum grounded container on the grounded electrode side. SOLUTION: A volume C5 of the vacuum grounded container on the fixed electrode side from the center of a movable electrode 7 positioned in the middle between a grounded electrode and a fixed electrode, is increased more than a volume C6 of a vacuum grounded container on the grounded electrode side. To increase the volume C5 more than the volume C6, the vacuum grounded container is formed so as to be L1>L2, where L1 and L2 are the distances between the center 0 of the movable electrode 7 positioned in the middle between a grounded electrode 39 and the fixed electrode 5, and the vacuum grounded containers on the fixed electrode side and the grounded electrode side respectively. As a result, most of metallic vapor is diffused inside the volume C5 to reduce residual ions, thus it is possible to prevent degradation of current cut-off performance for improved current cut-off performance, thereby attaining size reduction in a switch gear.

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】本発明は真空スイッチギヤに
関し、特に遮断器,断路器,負荷開閉器,接地装置のい
ずれか1つ又は2以上を集合した新規なスイッチギヤの
配置構造に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum switchgear, and more particularly to a novel switchgear arrangement structure in which at least one of a circuit breaker, a disconnector, a load switch, and a grounding device is assembled.

【0002】[0002]

【従来の技術】都市部の消費電力集中地域の増加する需
要に対して、6KV供給での配電用変電所の立地困難,
配電用配管の配置余裕無し及び6KV供給設備稼働率の
高まり等により、配電電圧の昇圧、即ち6KVより回線
当たりの容積が大きい22KV系統に積極的に負荷吸収
を図ることが、効率的な電力供給設備形状につながる。
このために22KV配電器材の5KV並みへのコンパク
ト化を図る必要がある。コンパクト化を図る受変電機器
としては例えば特開平3−273804 号公報に記載されたS
6 ガス絶縁スイッチギヤが考えられる。このスイッチ
ギヤは配電函に絶縁ガスを充填したユニット室及び母線
室に遮断器、2個の断路器および接地開閉器を個別に製
作して収納している。遮断器として真空遮断器を使用す
る場合、真空遮断器の操作器により可動電極が固定電極
に対して上下に移動して、投入,遮断したり、或いは特
開昭55−143727号公報に記載された真空遮断器は、主軸
を支点して可動電極が左右に回動して固定電極に対して
接離して、投入,遮断をしている。
2. Description of the Related Art In response to an increasing demand in an area where power consumption is concentrated in an urban area, it is difficult to locate a substation for distribution with 6 KV supply.
Due to lack of room for distribution pipes and an increase in the operation rate of the 6KV supply facility, it is possible to increase the distribution voltage, that is, to actively absorb the load to a 22KV system having a larger capacity per line than 6KV, which results in efficient power supply. It leads to equipment shape.
For this reason, it is necessary to reduce the size of the 22KV distribution equipment to about 5KV. As the receiving and transforming equipment for downsizing, for example, the S described in JP-A-3-273804 is disclosed.
F 6 gas insulated switchgear can be considered. In this switchgear, a circuit breaker, two disconnectors, and a grounding switch are individually manufactured and housed in a unit room and a bus room in which a distribution box is filled with insulating gas. When a vacuum circuit breaker is used as the circuit breaker, the movable electrode is moved up and down with respect to the fixed electrode by the operation device of the vacuum circuit breaker, and the movable electrode is turned on and off, or described in JP-A-55-143727. In the vacuum circuit breaker, the movable electrode is rotated left and right with the main shaft as a fulcrum, and comes into contact with and separates from the fixed electrode, thereby closing and closing.

【0003】ガス絶縁スイッチギヤは、例えば電力会社
からの電力を断路器とガス遮断器などで受電し、変圧器
で負荷に最適な電圧に変え、負荷例えばモータなどに電
力を供給している。受変電機器を保守・点検するには、
ガス遮断器を切後、ガス遮断器と別個に設けた断路器を
開放し、更に接地開閉器を接地することにより、電源側
の残留電荷,誘導電流を接地に流し、かつ、電源からの
再印加を防止して、作業者の安全を守っている。また、
母線が充電されたまま接地開閉器を接地すると、事故に
つながるので、断路器と接地開閉器との間にはインター
ロックを設けている。
A gas insulated switchgear receives, for example, electric power from an electric power company by a disconnector and a gas circuit breaker, changes the voltage to a voltage optimal for a load by a transformer, and supplies electric power to a load, such as a motor. To maintain and inspect the substation equipment,
After the gas circuit breaker is turned off, the disconnecting switch provided separately from the gas circuit breaker is opened, and the grounding switch is grounded, so that the residual charge and the induced current on the power supply side flow to the ground, and the power supply from the power supply is restored. The application of voltage is prevented to protect the worker's safety. Also,
If the grounding switch is grounded while the bus is charged, an accident may occur. Therefore, an interlock is provided between the disconnecting switch and the grounding switch.

【0004】[0004]

【発明が解決しようとする課題】例えば特開平3−27380
4 号公報に記載されたSF6 ガス絶縁開閉装置は、配電
函にSF6 ガスを充填したユニット室及び母線室にガス
遮断器、2個の断路器および接地開閉器を個別に製作し
て収納している。遮断器として真空遮断器を使用する場
合、操作器により真空容器内の可動電極が固定電極に対
して上下に移動して、投入,遮断したり、或いは特開昭
55−143727号公報に記載された真空遮断器は、主軸を支
点して可動ブレードに相当する可動リード線及び真空容
器内の可動電極が左右に回動して固定電極に対して接離
して、投入,遮断している。
Problems to be Solved by the Invention For example, Japanese Patent Application Laid-Open No. 3-27380
The SF 6 gas insulated switchgear described in Japanese Patent Publication No. 4 is separately manufactured and accommodated with a gas circuit breaker, two disconnectors and a grounding switch in the unit room and the bus room filled with SF 6 gas in the distribution box. doing. When a vacuum circuit breaker is used as a circuit breaker, the movable electrode in the vacuum vessel moves up and down with respect to the fixed electrode by the operating device, and is turned on and off.
The vacuum circuit breaker described in 55-143727 publication has a movable lead wire corresponding to a movable blade and a movable electrode in a vacuum vessel pivoting left and right with a main shaft as a fulcrum, and comes into contact with and separates from a fixed electrode. It is turned on and off.

【0005】しかしながら、これらの公報では真空容器
内の可動電極が左右に回動して固定電極に対して接離す
るだけの記載であり、真空遮断器を小型化するための配
慮に欠けてる。そこで、本発明者達は真空容器内の可動
電極が固定電極と接地電極との間を回動して、投入位
置,遮断位置,断路位置,接地位置を有する新規なスイ
ッチギヤを提案した。これらの各位置を有する真空容器
をどのようにすれば、真空容器を小型化出来るかと云う
問題が生じた。
However, these publications only describe that the movable electrode in the vacuum vessel rotates right and left and comes into contact with and separates from the fixed electrode, and lacks consideration for reducing the size of the vacuum circuit breaker. Therefore, the present inventors have proposed a novel switchgear in which a movable electrode in a vacuum vessel rotates between a fixed electrode and a ground electrode, and has a closing position, a breaking position, a disconnecting position, and a grounding position. A problem arises as to how the vacuum vessel having these positions can be reduced in size.

【0006】本発明の目的は、電力損失及び発生熱を少
なくして電流遮断性能を向上して真空接地容器を小型化
したスイッチギヤを提供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide a switchgear in which the power loss and generated heat are reduced, the current interrupting performance is improved, and the vacuum grounding container is downsized.

【0007】[0007]

【課題を解決するための手段】本発明の請求項1記載の
スイッチギヤは、真空接地容器内に配置された接地電極
と固定電極とに接離する可動電極と、可動電極と一緒に
動く電気的手段に接続された負荷側導体とを備え、接地
電極と固定電極との中央に位置する可動電極の中心から
固定電極側真空接地容器内の容積を接地電極側真空接地
容器の容積より広くすることにある。
According to a first aspect of the present invention, there is provided a switchgear comprising: a movable electrode which comes into contact with and separates from a ground electrode and a fixed electrode disposed in a vacuum ground container; And a load-side conductor connected to the static means, wherein the volume in the fixed-electrode-side vacuum grounding vessel from the center of the movable electrode located at the center between the grounding electrode and the fixed electrode is made larger than the volume of the grounding-electrode-side vacuum grounding vessel. It is in.

【0008】本発明の請求項2記載のスイッチギヤは、
接地電極と固定電極との中央に位置する可動電極の中心
から固定電極側及び接地電極側の真空接地容器内面まで
の距離をL1及びL2とすれば、L1>L2であること
を特徴とする請求項1記載のスイッチギヤにある。
[0008] The switchgear according to claim 2 of the present invention,
The distance from the center of the movable electrode located at the center between the ground electrode and the fixed electrode to the inner surface of the vacuum ground vessel on the fixed electrode side and the ground electrode side is L1> L2, where L1> L2. Item 1 is the switchgear according to Item 1.

【0009】本発明の請求項3記載のスイッチギヤは、
主軸を支点として接地電極と固定電極とに接離する可動
電極であることを特徴とする請求項1記載のスイッチギ
ヤにある。
According to a third aspect of the present invention, there is provided a switchgear.
2. The switchgear according to claim 1, wherein the movable electrode is a movable electrode which comes into contact with and separates from the ground electrode and the fixed electrode with the main shaft as a fulcrum.

【0010】本発明の請求項4記載のスイッチギヤは、
真空接地容器内に配置された接地電極及び負荷側導体に
接離する可動電極及び可動接地電極と、可動電極と一緒
に動く電気的手段に接続された固定電極とを備えたスイ
ッチギヤであることを特徴とする請求項1記載のスイッ
チギヤにある。
According to a fourth aspect of the present invention, there is provided a switchgear.
A switchgear having a movable electrode and a movable ground electrode which are disposed in the vacuum grounding container and are in contact with and separated from the load-side conductor, and a fixed electrode connected to an electric means which moves together with the movable electrode. The switchgear according to claim 1, characterized in that:

【0011】本発明の請求項5記載のスイッチギヤは、
可動電極が投入位置から接地位置に移動する間に断路位
置を有することを特徴とする請求項1又は4記載のスイ
ッチギヤにある。
[0011] The switchgear according to claim 5 of the present invention comprises:
5. The switchgear according to claim 1, wherein the movable electrode has a disconnection position while moving from the closing position to the ground position.

【0012】本発明の請求項6記載のスイッチギヤは、
上記電気的手段にフレキシブル導体を使用することを特
徴とする請求項1又は4記載のスイッチギヤにある。
[0012] The switchgear according to claim 6 of the present invention,
The switchgear according to claim 1 or 4, wherein a flexible conductor is used for the electrical means.

【0013】本発明の請求項7記載のスイッチギヤは、
上記電気的手段に湾曲形状のフレキシブル導体を使用
し、湾曲形状の突出部が接地電極側に向いていることを
特徴とする請求項1記載のスイッチギヤにある。
According to a seventh aspect of the present invention, there is provided a switchgear.
2. The switchgear according to claim 1, wherein a curved flexible conductor is used for the electric means, and the curved protrusion is directed toward the ground electrode.

【0014】本発明の請求項8記載のスイッチギヤは、
上記真空接地容器内接地電極と固定電極及び可動電極と
負荷側導体とを十字状に配置することを特徴とする請求
項1記載のスイッチギヤにある。
The switchgear according to claim 8 of the present invention,
2. The switchgear according to claim 1, wherein the ground electrode, the fixed electrode, the movable electrode, and the load-side conductor in the vacuum ground container are arranged in a cross shape.

【0015】本発明の請求項9記載のスイッチギヤは、
上記可動電極と可動電極を駆動する駆動手段との一部に
電気阻止手段を設けることを特徴とする請求項1又は4
記載のスイッチギヤにある。
According to a ninth aspect of the present invention, there is provided a switchgear.
5. An electric blocking means is provided in a part of said movable electrode and a driving means for driving said movable electrode.
In the described switchgear.

【0016】本発明の請求項10記載のスイッチギヤ
は、上記可動電極と可動電極を駆動する駆動手段との一
部にセラミック部材を設けることを特徴とする請求項1
又は4記載のスイッチギヤにある。
According to a tenth aspect of the present invention, in the switchgear, a ceramic member is provided on a part of the movable electrode and a driving means for driving the movable electrode.
Or the switchgear according to 4.

【0017】本発明の請求項11記載のスイッチギヤ
は、遮断器,断路器,負荷開閉器,接地装置のいずれか
1つ又は2以上を集合したスイッチギヤに使用をするこ
とを特徴とする請求項1又は4記載のスイッチギヤにあ
る。
The switchgear according to claim 11 of the present invention is used for a switchgear in which one or more of a circuit breaker, a disconnector, a load switch, and a grounding device are assembled. Item 5 is the switchgear according to Item 1 or 4.

【0018】本発明の請求項12記載のスイッチギヤ
は、上記真空接地容器の代りに絶縁媒体を有す密閉容器
を使用することを特徴とする請求項1又は4記載のスイ
ッチギヤにある。
According to a twelfth aspect of the present invention, there is provided the switchgear according to the first or fourth aspect, wherein a closed container having an insulating medium is used instead of the vacuum grounding container.

【0019】本発明の請求項13記載のスイッチギヤ
は、真空接地容器内に配置された接地側固定電極及び可
動側固定電極と、両電極の各々と接離する接地側可動電
極及び可動電極とを配置し、両電極間の中央から可動電
極側真空接地容器内の容積を、接地電極側真空接地容器
内の容積より広くなるように真空接地容器を構成するこ
とにある。
According to a thirteenth aspect of the present invention, there is provided a switchgear comprising: a ground-side fixed electrode and a movable-side fixed electrode disposed in a vacuum grounding container; And to configure the vacuum grounding container so that the volume in the movable electrode side vacuum grounding container from the center between both electrodes is larger than the volume in the ground electrode side vacuum grounding container.

【0020】本発明の請求項14記載のスイッチギヤ
は、両電極間の中央から可動電極側真空接地容器内面及
び中央から接地電極側真空接地容器内面までの距離をL
1及びL2とすれば、L1>L2になるように真空接地
容器を構成することにある。
In the switchgear according to the present invention, the distance from the center between both electrodes to the inner surface of the movable electrode side vacuum grounding container and the center to the grounding electrode side vacuum grounding container inner surface is L.
If 1 and L2 are set, the vacuum grounded container is configured so that L1> L2.

【0021】[0021]

【発明の実施の形態】以下、本発明の実施例を図1ない
し図5より説明する。図1の回路図は集合型スイッチギ
ヤの全体を示し、図1の1回路分の回路スイッチギヤの
構造に合わせた電気回路を示すと図2となり、又図1の
1回路分の回路スイッチギヤの構造を示したのが図3,
図4である。図5は回路スイッチギヤ各相間を母線で接
続する中継端子板27である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The circuit diagram of FIG. 1 shows the entirety of the collective switchgear, and FIG. 2 shows an electric circuit adapted to the structure of the circuit switchgear of one circuit of FIG. 1, and the circuit switchgear of one circuit of FIG. Figure 3 shows the structure of
FIG. FIG. 5 shows a relay terminal plate 27 for connecting each phase of the circuit switchgear with a bus.

【0022】多相例えば3個の3回路分スイッチギヤ
1,2,3を接地Eされた真空接地容器4内に配置し
た。各3回路スイッチギヤ1,2,3は構成が同じなの
で、第2の回路スイッチギヤ2を説明し、他の回路スイ
ッチギヤの説明を省略する。回路スイッチギヤ2は相ス
イッチギヤ2X,2Y,2Zの3相を集合したものであ
る。各相スイッチギヤ2X,2Y,2Zは構成が同じな
ので、第1相の相スイッチギヤ2Xのみを説明し、他の
相スイッチギヤ2Y,2Zの説明を省略する。
The switch gears 1, 2, 3 for three circuits, for example, for three phases, are arranged in a vacuum grounded container 4 which is grounded. Since the three circuit switchgears 1, 2, and 3 have the same configuration, the second circuit switchgear 2 will be described, and the description of the other circuit switchgears will be omitted. The circuit switchgear 2 is a set of three phases of phase switchgears 2X, 2Y and 2Z. Since each phase switch gear 2X, 2Y, 2Z has the same configuration, only the first phase switch gear 2X will be described, and description of the other phase switch gears 2Y, 2Z will be omitted.

【0023】相スイッチギヤ2Xは遮断機能、断路機
能、接地機能及び母線を一体に集合したものである。即
ち、相スイッチギヤ2Xは主として固定電極5と接地装
置6との間を移動する可動電極7とから構成している。
固定電極5は内部母線8に接続している。可動電極7は
負荷側導体9に接続し、負荷側導体9は真空接地容器外
に伸びるケーブルヘッド10に接続している。また可動
電極7は後述する可動ブレードと機械的に連結し、図示
していない操作機構部により駆動される可動ブレードの
回動により上下方向或いは左右方向に回動する。可動電
極7が固定電極5から接地装置6まで移動すると、図2
の4位置に停止する。
The phase switchgear 2X is a combination of a shutoff function, a disconnection function, a grounding function, and a bus. That is, the phase switch gear 2X mainly includes the movable electrode 7 that moves between the fixed electrode 5 and the grounding device 6.
The fixed electrode 5 is connected to the internal bus 8. The movable electrode 7 is connected to a load-side conductor 9, and the load-side conductor 9 is connected to a cable head 10 extending outside the vacuum grounding container. In addition, the movable electrode 7 is mechanically connected to a movable blade described later, and is rotated vertically or horizontally by rotation of a movable blade driven by an operation mechanism (not shown). When the movable electrode 7 moves from the fixed electrode 5 to the grounding device 6, FIG.
Stop at 4 positions.

【0024】また回路スイッチギヤ1は可動電極7と接
続した電源側ケーブル11によい系統電源12に電気的
に接続している。
The circuit switchgear 1 is electrically connected to a system power supply 12 which is suitable for a power supply side cable 11 connected to the movable electrode 7.

【0025】即ち、可動電極7が回動するのに応じて、
可動電極7が固定電極5に接触する投入位置Y1で通電
し、投入位置Y1より下側に回動して遮断位置Y2で可
動電極7が固定電極5と離れ電流を遮断する。更に下側
に回動して断路位置Y3で可動電極7が固定電極5と離
れ、雷などで絶縁破壊しないこと及び負荷導体側で作業
員が感電しない絶縁距離を取る。更に下側に可動電極7
が回動して接地位置Y4で可動電極7が接地装置6と接
触する。尚、断路位置Y3を省略して遮断位置Y2から
接地位置Y4に移動しても本発明の下記効果を損なうも
のではない。高絶縁体である真空中で、可動電極7が固
定電極5から接地装置6に回動する間に一回の操作で連
続的に4ポジションを行うことが出来るので、操作がし
やすく使い勝手が良いばかりか、また可動電極7,固定
電極5,接地装置6を一個所に集合体したので、上述の
従来技術に比べてより小型化することができる。更に断
路位置Y3を設けると、異電源突合せ例えば2つの系統
電源を持つ2回線受電において、いずれか1回線の相ス
イッチギヤ2Xが投入位置Y1で運転中にあり、他回線
の相スイッチギヤ2Yが断路位置Y3で待機中の時に
は、負荷側導体9に作業員が接触しても安全であるばか
りか、また待機中から運転或いは運転中から待機に切り
替える場合も連続して作業ができるので、作業スピード
が速く、操作がしやすい。
That is, as the movable electrode 7 rotates,
The movable electrode 7 is energized at the input position Y1 where the movable electrode 7 contacts the fixed electrode 5, and rotates below the input position Y1 to separate the movable electrode 7 from the fixed electrode 5 at the cutoff position Y2 and cut off the current. Further, the movable electrode 7 is rotated downward to separate the fixed electrode 5 from the fixed electrode 5 at the disconnection position Y3, so that insulation is not broken by lightning or the like, and an insulation distance is provided so that the worker is not electrocuted on the load conductor side. The movable electrode 7 is further below.
Rotates, and the movable electrode 7 contacts the grounding device 6 at the grounding position Y4. It should be noted that omitting the disconnection position Y3 and moving from the interruption position Y2 to the ground contact position Y4 does not impair the following effects of the present invention. Since the movable electrode 7 can continuously perform four positions by one operation while the movable electrode 7 rotates from the fixed electrode 5 to the grounding device 6 in a vacuum of a high insulator, it is easy to operate and easy to use. In addition, since the movable electrode 7, the fixed electrode 5, and the grounding device 6 are assembled in one place, the size can be further reduced as compared with the above-described conventional technology. Further, when the disconnection position Y3 is provided, in the case of different power supply matching, for example, in two-line power reception having two system power supplies, the phase switch gear 2X of one of the lines is operating at the closing position Y1, and the phase switch gear 2Y of the other line is in operation. When the operator is in standby at the disconnection position Y3, it is not only safe for the worker to come into contact with the load-side conductor 9, but also the operation can be continuously performed when switching from standby to operation or from operation to standby. Fast speed and easy operation.

【0026】更に通電電流を変流器13で検出して、保
護リレー14を動作させて、操作機構部(図示せず)を
トリップさせることにより、系統の事故にも対応する。
Further, the current flowing through the current transformer 13 is detected by the current transformer 13 and the protection relay 14 is operated to trip an operation mechanism (not shown), thereby coping with a system failure.

【0027】接地Eされた真空接地容器4は、ステレン
ス部材を使用し、その一部が球面又は曲面形状に形成
し、真空接地容器4の機械的強度の増加を図ったり、真
空接地容器壁の厚みを薄くして軽量化を図っている。真
空接地容器4は配電盤16に収納されている。配電盤1
6は真空接地容器4の上側及び下側に操作コンパートメ
ント17及び導体コンパートメント18を設けている。
操作コンパートメント17は真空接地容器4の右側つま
り奥行側に凹んで配置され、正面側には開閉自在な扉1
9が取り付けている。又導体コンパートメント17は真
空接地容器4の左側つまり手前側に配置されている。
The grounded vacuum grounding container 4 uses a stainless steel member, a part of which is formed in a spherical or curved shape to increase the mechanical strength of the vacuum grounding container 4 or to improve the vacuum grounding container wall. The thickness is reduced to reduce the weight. The vacuum grounding container 4 is housed in a switchboard 16. Switchboard 1
6 is provided with an operation compartment 17 and a conductor compartment 18 on the upper and lower sides of the vacuum grounding container 4.
The operation compartment 17 is disposed so as to be recessed on the right side, that is, the depth side of the vacuum grounding container 4, and the openable and closable door 1 is disposed on the front side.
9 are attached. The conductor compartment 17 is disposed on the left side of the vacuum grounding container 4, that is, on the near side.

【0028】真空接地容器4を介して操作コンパートメ
ント17と導体コンパートメント18とは斜めに対称に
配置されている。操作コンパートメント17は可動ブレ
ード及び可動電極17を回動する操作機構部を収納して
いる。導体コンパートメント18は負荷側導体9及びケ
ーブルヘッド10を収納している。操作コンパートメン
ト17の手前側真空容器上に操作コンパートメント内を
保守点検する工具などを置くことができ、保守点検が容
易である。又導体コンパートメント18を操作コンパー
トメント17より手前の正面側に配置してケーブルヘッ
ド10の取付け作業を安全に行うことが出来るようにし
ている。
The operation compartment 17 and the conductor compartment 18 are disposed obliquely symmetrically via the vacuum grounding container 4. The operation compartment 17 houses an operation mechanism for rotating the movable blade and the movable electrode 17. The conductor compartment 18 houses the load-side conductor 9 and the cable head 10. A tool or the like for maintenance and inspection of the inside of the operation compartment can be placed on the vacuum container on the front side of the operation compartment 17 and maintenance and inspection is easy. The conductor compartment 18 is arranged on the front side before the operation compartment 17 so that the cable head 10 can be safely mounted.

【0029】真空接地容器正面側の壁は9個のブッシン
グ21を取り付けている。第1の回路スイッチギヤ1に
おいて3相の電源側ケーブル11の一方側は、ブッシン
グ21を貫通して外部の系統電源12に接続している。
第2及び第3の3回路スイッチギヤ2,3でも各3相の
一方側負荷側導体9はブッシング21を貫通してケーブ
ルヘッド10に接続している。接続する時にはケーブル
ヘッド10に設けたコネクターに負荷側導体9を挿入し
て行う。ケーブルヘッド内の負荷側導体9はフレキシブ
ル導体22を使用し、トランスTR,他回路,モータ等
の負荷に接続している。第2の回路スイッチギヤ2のケ
ーブルヘッド10の各相には、図4に示すように変流器
13を設け、貫通している。他の回路スイッチギヤ2に
も接続した変流器13を負荷条件など必要に応じて設け
られる。
Nine bushings 21 are mounted on the front wall of the vacuum grounding container. In the first circuit switchgear 1, one side of the three-phase power supply side cable 11 is connected to an external system power supply 12 through a bushing 21.
In the second and third three-circuit switch gears 2 and 3 as well, the one-side load-side conductor 9 of each of the three phases passes through the bushing 21 and is connected to the cable head 10. The connection is performed by inserting the load-side conductor 9 into a connector provided on the cable head 10. The load-side conductor 9 in the cable head uses a flexible conductor 22 and is connected to loads such as a transformer TR, other circuits, and a motor. Each phase of the cable head 10 of the second circuit switchgear 2 is provided with a current transformer 13 as shown in FIG. A current transformer 13 connected to another circuit switchgear 2 is also provided as necessary, such as load conditions.

【0030】接地装置6は9個のケーブルヘッド10に
対応し、その上部に配置され、共通接地導体24を接地
導体38で接続している。共通接地導体24の両端は接
地ネジ25により配電盤16に固定している。これらの
ケーブルヘッド10,接地導体38,変流器13は全て
正面側から見ることができるようにして、取付け忘れを
防止していると共に、取付け取外し作業を作業員がやり
よくして、作業能率を図っている。
The grounding devices 6 correspond to the nine cable heads 10, are disposed above the cable heads 10, and connect the common grounding conductor 24 with the grounding conductor 38. Both ends of the common ground conductor 24 are fixed to the switchboard 16 by ground screws 25. The cable head 10, the grounding conductor 38, and the current transformer 13 can all be viewed from the front side to prevent forgetting to attach, and to make the attaching and detaching work easier for the worker, thereby improving the work efficiency. Is being planned.

【0031】各3回路スイッチギヤ間は図1では内部母
線8が直接回路スイッチギヤ間を接続しているが、これ
は実施例を容易に理解するために回路スイッチギヤ間を
直接接続したのである。図1の中継端子板27の実際
は、図5の9個の固定電極5の一部で構成した中継端子
26を有する中継端子板27を真空容器内壁面に取付
け、各中継端子26に上述した各内部母線8を接続して
いる。各内部母線8を中継端子板27に配置する場合に
は、中継端子板27の左側から右側に行くに従い順次、
第1の回路スイッチギヤから第2,第3の回路スイッチ
ギヤの内部母線8を配置する。配置に際しては、各回路
スイッチギヤの内部母線8は、1相1X,2X,3Xを
一方側に2相及び3相2X〜2Z,3X〜3Zを他方側
にラップしながら配置して、配線を容易にし、且つ配線
間違いの防止と内部母線の分散配置により熱劣化の防止
等の対策を施している。
In FIG. 1, the internal bus 8 directly connects between the three circuit switch gears between the three circuit switch gears. This is because the circuit switch gears are directly connected for easy understanding of the embodiment. . In practice, the relay terminal plate 27 of FIG. 1 has a relay terminal plate 27 having a relay terminal 26 constituted by a part of the nine fixed electrodes 5 of FIG. The internal bus 8 is connected. When arranging each internal bus 8 on the relay terminal plate 27, the order goes from the left side to the right side of the relay terminal plate 27,
Internal buses 8 from the first circuit switchgear to the second and third circuit switchgears are arranged. When arranging, the internal bus 8 of each circuit switchgear is arranged while wrapping the one-phase 1X, 2X, 3X on one side while wrapping the two-phase and three-phase 2X-2Z, 3X-3Z on the other side. In addition, measures such as prevention of thermal deterioration and the like are provided by simplifying the wiring and preventing the wiring errors and distributing the internal buses.

【0032】第1ないし第3の回路スイッチギヤ1〜3
は真空接地容器内に配置され、次のような構成をしてい
るが、各相スイッチギヤ2X〜2Zは構成が同じなの
で、1相分の相スイッチギヤ2Xの構成のみ説明し、他
の相スイッチギヤ2Y,2Zの説明は省略する。真空接
地容器4の内部は接地装置6と対応して配置された固定
電極5との間を回動する可動電極7を配置し、可動電極
7にケーブルヘッド10が対応配置されており、これら
は全体として十字形状に配置されている。真空接地容器
4に形成した3個の貫通穴(図示せず)を貫通した接地
装置6と可動ブレード30及び負荷側導体9を真空接地
容器外に延ばしている。
First to third circuit switch gears 1 to 3
Are arranged in a vacuum grounded container and have the following configuration. However, since the respective phase switch gears 2X to 2Z have the same configuration, only the configuration of the phase switch gear 2X for one phase will be described. The description of the switch gears 2Y and 2Z is omitted. Inside the vacuum grounding container 4, a movable electrode 7 that rotates between a grounding device 6 and a fixed electrode 5 corresponding to the grounding device 6 is arranged, and a cable head 10 is arranged corresponding to the movable electrode 7. They are arranged in a cross shape as a whole. A grounding device 6, a movable blade 30, and a load-side conductor 9 that extend through three through holes (not shown) formed in the vacuum grounding container 4 extend outside the vacuum grounding container.

【0033】接地装置6は一端側に接地側底金具31を
設け、他端側が開口しているセラミック材より成る接地
側ブッシング32を有し、接地側ブッシング32の外周
にフランジ33を設け、フランジ33に取付けた接地側
封止金具34を真空接地容器4に溶着している。接地側
ブッシング内に接地側ベローズ35及びバネ36と接地
側導体37を配置している。接地側導体37は接地側底
金具31を貫通して外部に伸びており、その端部がネジ
により接地導体38が前述した共通接地導体24に接続
している。接地導体38はフレキシブル導体で構成さ
れ、接地側導体37が動いたときでも電気的に接続でき
る。
The grounding device 6 has a grounding-side bottom metal fitting 31 at one end, a grounding-side bushing 32 made of a ceramic material having an open end at the other end, and a flange 33 provided on the outer periphery of the grounding-side bushing 32. The ground-side sealing fitting 34 attached to 33 is welded to the vacuum grounding container 4. A grounding bellows 35, a spring 36, and a grounding conductor 37 are arranged in the grounding bushing. The ground-side conductor 37 extends to the outside through the ground-side bottom fitting 31, and the end of the ground-side conductor 37 is connected to the above-mentioned common ground conductor 24 by a screw. The ground conductor 38 is made of a flexible conductor, and can be electrically connected even when the ground-side conductor 37 moves.

【0034】また、これと反対側の接地側導体37には
接地電極39を固定している。接地電極39を接地側底
金具側に押すと、接地側ベローズ35と共にバネ36も
縮むが、その時にバネ36は縮んだ力により、常に接地
電極39を可動電極方向に押圧している。尚、接地側導
体37と接地電極39とを区別したが、両者を一体にし
て接地電極と称しても良い。
A ground electrode 39 is fixed to the ground conductor 37 on the opposite side. When the ground electrode 39 is pushed toward the ground-side bottom fitting, the spring 36 also contracts together with the ground-side bellows 35. At this time, the spring 36 always presses the ground electrode 39 in the direction of the movable electrode due to the contracted force. Although the ground conductor 37 and the ground electrode 39 are distinguished from each other, they may be integrally referred to as a ground electrode.

【0035】接地装置6と対応配置された固定電極5は
3相の内部母線8と接続している。3相の内部母線8は
図5に示したように配置されている。固定電極5は固定
中継金具41を介してセラミック材より成る固定絶縁筒
42に支持されている。固定絶縁筒42の他端を支持し
ている固定支持金具43はロー材により真空接地容器に
固定されている。つまり固定絶縁筒42の両端に固定中
継金具41と固定支持金具43とを予め取付けてある。
The fixed electrode 5 corresponding to the grounding device 6 is connected to the three-phase internal bus 8. The three-phase internal buses 8 are arranged as shown in FIG. The fixed electrode 5 is supported by a fixed insulating cylinder 42 made of a ceramic material via a fixed relay fitting 41. A fixed support member 43 supporting the other end of the fixed insulating cylinder 42 is fixed to the vacuum grounding container by a brazing material. That is, the fixed relay fitting 41 and the fixed support fitting 43 are attached to both ends of the fixed insulating cylinder 42 in advance.

【0036】可動電極7は接地装置6と固定電極5との
間に配置され、可動電極7を可動中継金具44を介して
セラミック材の可動絶縁筒45に支持されており、可動
支持部45の一端は前述と同様に可動支持金具46に支
持され、可動支持金具46は可動ブレード30に支持さ
れている。可動ブレード30は可動支持板47を貫通し
て外部に延びている。可動支持板47は真空接地容器4
に固定されている。可動ブレード30は伸縮自在な可動
ベローズ48に包囲され、可動ベローズ48に一端は可
動支持金具46に、他端は可動支持板47にそれぞれ取
付けられ、可動ブレード30が左右,上下へ回動する動
きをできるようにしている。可動ブレード30は主軸4
9を支点として矢印方向に回動し、接地電極39と固定
電極5とに接離する。上記電極5〜7にはCuを主成分
としてその他Cr−W−Pbを含有した合金,Cu−C
r合金,Cu−Ag合金,Cu−Ni合金等の高融点金
属部材を使用する。
The movable electrode 7 is disposed between the grounding device 6 and the fixed electrode 5, and the movable electrode 7 is supported by a movable insulating cylinder 45 made of a ceramic material via a movable relay fitting 44. One end is supported by the movable support bracket 46 as described above, and the movable support bracket 46 is supported by the movable blade 30. The movable blade 30 extends outside through the movable support plate 47. The movable support plate 47 is a
It is fixed to. The movable blade 30 is surrounded by an extendable movable bellows 48, one end of which is attached to the movable support bracket 46 and the other end of which is attached to the movable support plate 47. To be able to The movable blade 30 has a main shaft 4
It rotates in the direction of the arrow with 9 as a fulcrum, and comes into contact with and separates from the ground electrode 39 and the fixed electrode 5. The electrodes 5 to 7 are made of an alloy containing Cu as a main component and other Cr-W-Pb, Cu-C
A high melting point metal member such as an r alloy, a Cu-Ag alloy, or a Cu-Ni alloy is used.

【0037】可動ブレード30の先端は連結した図示し
ていない操作機構部の駆動により、可動ブレード30は
主軸49を支点として回動する。動作軸50は可動ブレ
ード30と操作機構部とを連結している。尚、可動ブレ
ード30の先端に可動電極を設けただけの構造でもよ
い。この場合、可動ブレードと操作機構部とのいずれか
の1部に電流を遮断する絶縁手段が必要である。
The tip of the movable blade 30 is driven by an operating mechanism (not shown) connected thereto, and the movable blade 30 is rotated about the main shaft 49 as a fulcrum. The operation shaft 50 connects the movable blade 30 and the operation mechanism. Note that a structure in which only the movable electrode is provided at the tip of the movable blade 30 may be used. In this case, any one of the movable blade and the operating mechanism needs an insulating means for interrupting the current.

【0038】可動電極7の先端と負荷側導体9とはフレ
キシブル導体22により接続している。負荷側導体9
は、セラミック材より成る負荷側ブッシング21Aを貫
通してケーブルヘッド10に接続している。負荷側ブッ
シング21A端部に負荷側封止金具53を設け、負荷側
封止金具53を真空接地容器4に空けた開口の周囲にロ
ー材に溶着して支持すると共に、真空接地容器4の内部
に露出している負荷側ブッシング21Aのセラミック表
面は接地金属層54を設け、漏電流が真空接地容器4を
介して接地Eに流れるようにし、作業員がケーブルヘッ
ド10に接触しても危険が生じないように安全対策を施
している。
The tip of the movable electrode 7 and the load-side conductor 9 are connected by a flexible conductor 22. Load side conductor 9
Are connected to the cable head 10 through the load side bushing 21A made of a ceramic material. A load-side sealing member 53 is provided at the end of the load-side bushing 21A, and the load-side sealing member 53 is welded to a brazing material around an opening provided in the vacuum grounding container 4 to be supported. The ground surface metal layer 54 is provided on the ceramic surface of the load side bushing 21A which is exposed to the outside, so that leakage current flows to the ground E via the vacuum grounding container 4, and there is a danger even if an operator comes into contact with the cable head 10. Safety measures are taken to prevent this from happening.

【0039】次に相スイッチギヤの動作を図6ないし図
8により説明する。可動電極7は図6のように接地装置
6と固定電極5との間に配置された図2の遮断位置Y2
及び断路位置Y3におり、この位置から図6のように可
動電極7を矢印方向X1に回動し、可動電極7が接地電
極39に接触した所謂接地位置Y4であり、常に接地電
極39は可動電極方向にバネ36により押圧している。
可動電極7は図8のように接地位置Y4から矢印方向X
2に回動し、可動電極7が固定電極5に接触していると
共に、負荷側導体9にも接続した所謂投入位置Y1であ
る。
Next, the operation of the phase switch gear will be described with reference to FIGS. The movable electrode 7 is disposed between the grounding device 6 and the fixed electrode 5 as shown in FIG.
And the disconnection position Y3. From this position, the movable electrode 7 is rotated in the arrow direction X1 as shown in FIG. 6, and the movable electrode 7 is in contact with the ground electrode 39, that is, the so-called ground position Y4. It is pressed by a spring 36 in the electrode direction.
The movable electrode 7 is moved from the ground position Y4 in the arrow direction X as shown in FIG.
2, the movable electrode 7 is in contact with the fixed electrode 5 and is also connected to the load-side conductor 9, which is a so-called closing position Y1.

【0040】投入位置Y1では可動電極7が固定電極5
に接触していると共に、負荷側導体9にも接続してい
る。この場合、従来技術と異なり可動ブレード30を経
由することなく、可動電極7より固定電極5とフレキシ
ブル導体22を介して負荷側導体9に電力を供給してい
るので、電流通路を従来技術のそれに比べて大幅に短縮
できるようになり、電気抵抗が少なくなり、この分電力
損失及び発生熱を少なくすることが出来るようになっ
た。
In the loading position Y1, the movable electrode 7 is
And is also connected to the load-side conductor 9. In this case, unlike the related art, power is supplied from the movable electrode 7 to the load-side conductor 9 via the fixed electrode 5 and the flexible conductor 22 without passing through the movable blade 30. Compared with this, the power consumption can be greatly reduced, the electric resistance is reduced, and the power loss and the generated heat can be reduced accordingly.

【0041】一方、投入位置Y1では常時電力を負荷に
供給しており、この運転時間は他の位置での使用時間よ
りも長く、フレキシブル導体22を使用しなければ、可
動電極7が直接負荷側導体9に摺動することが考えられ
る。これは、可動電極7が直接負荷側導体9に摺動し、
可動電極7及び負荷側導体9が接触した状態で電流を流
し続けることになり、この発生熱により可動電極7及び
負荷側導体9は溶着してしまう恐れがある。この結果、
溶着している可動電極7と負荷側導体9とを剥離するた
めに、操作機構部の回動力を大きくすれば、最低限使用
出来るが、操作機構部の大型化は避けることは出来ず、
真空遮断器は大型化及びコスト高になる。
On the other hand, the power is always supplied to the load at the input position Y1, the operation time is longer than the operation time at other positions, and if the flexible conductor 22 is not used, the movable electrode 7 is directly connected to the load. Sliding on the conductor 9 is conceivable. This means that the movable electrode 7 slides directly on the load-side conductor 9,
The current continues to flow while the movable electrode 7 and the load-side conductor 9 are in contact with each other, and the generated heat may cause the movable electrode 7 and the load-side conductor 9 to be welded. As a result,
In order to separate the welded movable electrode 7 and the load-side conductor 9 from each other, the operation mechanism can be used at a minimum by increasing the rotational power of the operation mechanism. However, it is inevitable to increase the size of the operation mechanism.
Vacuum circuit breakers increase in size and cost.

【0042】又発生熱中に摺動することは、摩耗が激し
く、両電極の寿命が短い。更に可動電極7が負荷側導体
9に摺動する時には、可動電極7及び負荷側導体9から
発生した金属微粒子が真空容器内で拡散し、残留するの
で、絶縁破壊を生じやすくなる。
Further, sliding during the generated heat causes severe wear, and the life of both electrodes is short. Further, when the movable electrode 7 slides on the load-side conductor 9, fine metal particles generated from the movable electrode 7 and the load-side conductor 9 diffuse and remain in the vacuum vessel, so that the dielectric breakdown easily occurs.

【0043】これに対して、本発明では可動電極7が直
接負荷側導体9に摺動しないフレキシブル導体22で負
荷側導体9と可動電極7との間を接続しており、可動電
極7及び負荷側導体9の溶着は生じることがなく、操作
機構部の回動力は前述より大きくならず、操作機構部も
小型化することが出来るばかりか、可動電極7及び負荷
側導体9の寿命も前述より長くなり、経済的にも有利で
ある。又フレキシブル導体22で負荷側導体9と可動電
極7との間を接続しており、前述のように可動電極7が
負荷側導体9に摺動する時の金属蒸気を発生することも
なく、電流遮断特性が前述よりは大幅に向上することは
明らかであり、この分、真空接地容器4を小型化するこ
とができる。
On the other hand, in the present invention, the movable electrode 7 and the movable electrode 7 are connected between the load-side conductor 9 and the movable electrode 7 by the flexible conductor 22 that does not slide directly on the load-side conductor 9. The welding of the side conductor 9 does not occur, the rotating force of the operating mechanism is not increased as described above, and the operating mechanism can be downsized, and the life of the movable electrode 7 and the load-side conductor 9 is also longer than the above. It is longer and economically advantageous. The flexible conductor 22 connects between the load-side conductor 9 and the movable electrode 7, and does not generate metal vapor when the movable electrode 7 slides on the load-side conductor 9 as described above. It is clear that the cutoff characteristics are greatly improved as compared to the above, and the vacuum grounding container 4 can be downsized accordingly.

【0044】更に、本発明は接地装置及び断路位置を除
去しても使用できるので、更に真空接地容器,操作機構
部を小型化できるので、回路スイッチギヤも当然小型化
できることは云うまでもない。
Further, since the present invention can be used even if the grounding device and the disconnecting position are removed, the vacuum grounding vessel and the operating mechanism can be further reduced in size, so that the circuit switchgear can of course be reduced in size.

【0045】一方、接地装置6と固定電極5との中央に
位置する可動電極7の中心から固定電極側真空接地容器
の容積5Cを接地電極側真空接地容器の容積6Cより広
くする。容積5Cを容積6Cより大きくするには、接地
電極39と固定電極5との中央に位置する可動電極7の
中心0から固定電極側及び接地電極側の真空接地容器ま
での距離をL1及びL2とすれば、L1>L2になるよ
うに真空接地容器4を構成すればよい。
On the other hand, the volume 5C of the fixed electrode side vacuum grounding container from the center of the movable electrode 7 located at the center between the grounding device 6 and the fixed electrode 5 is made larger than the volume 6C of the grounding electrode side vacuum grounding container. In order to make the volume 5C larger than the volume 6C, distances from the center 0 of the movable electrode 7 located at the center between the ground electrode 39 and the fixed electrode 5 to the vacuum ground containers on the fixed electrode side and the ground electrode side are L1 and L2. Then, the vacuum grounding container 4 may be configured so that L1> L2.

【0046】この結果、可動電極7が接地装置6又は固
定電極5に接離する場合は、接地装置6は電源側の残留
電荷,誘導電流を接地に流すだけだから、電流の入り切
りは固定電極5に比べて接地装置6の方がはるかに小さ
いので、容積6Cは容積5Cより小さくてよいが、固定
電極5の方は接地装置6に比べて大きな電流の入り切り
が頻繁に行われ、入り切り時に両電極5,7からの金属
微粒子が接地装置6より多く発生するので、容積5Cは
容積6Cより広くして、金属蒸気の多くは容積5C内を
拡散するようになり、残留イオンを少なくし、絶縁回復
の遅れによる電流遮断性能の低下を防止出来き、電流遮
断性能を向上することが出来るようになり、この分スイ
ッチギヤも当然小型化することができる。又金属蒸気は
固定電極側真空接地容器内に拡散することが出来るの
で、絶縁耐圧を損なうことなく、絶縁耐圧を向上するこ
とが出来るようになった。更にこの容積5Cであれば、
大電流遮断時の発生熱も充分冷却することができる。
As a result, when the movable electrode 7 comes into contact with or separates from the grounding device 6 or the fixed electrode 5, the grounding device 6 only flows the residual charge and the induced current on the power supply side to the ground. Since the grounding device 6 is much smaller than that of the grounding device 6, the volume 6C may be smaller than the volume 5C. Since more metal fine particles from the electrodes 5 and 7 are generated than the grounding device 6, the volume 5C is made wider than the volume 6C, and most of the metal vapor diffuses in the volume 5C, thereby reducing residual ions and insulating. It is possible to prevent a decrease in the current interrupting performance due to a delay in recovery, and to improve the current interrupting performance, so that the switchgear can be downsized accordingly. Further, since the metal vapor can be diffused into the fixed electrode side vacuum grounding container, the withstand voltage can be improved without impairing the withstand voltage. Furthermore, if this volume is 5C,
The heat generated when a large current is interrupted can be sufficiently cooled.

【0047】次に他の実施例を図9,図10により説明
する。真空接地容器内に負荷側共通導体56を取付け、
負荷側共通導体56は負荷側導体9に接続していると共
に、その上に接地側接点57及び負荷側接点58と取り
付けている。真空接地容器4に支持された接地可動電極
59及び可動電極7は接地側接点57及び負荷側接点5
8に対応して配置されている。可動電極7が負荷側接点
58に接触している時には、可動電極59は接地側接点
57と離れており、互いに反対の動作をする。両電極の
外側には複数相の母線8と接続している固定電極5及び
接地側導体37と両電極との間はフレキシブル導体22
により接続している。
Next, another embodiment will be described with reference to FIGS. Attach the load-side common conductor 56 in the vacuum grounded container,
The load-side common conductor 56 is connected to the load-side conductor 9 and is mounted thereon with a ground contact 57 and a load-side contact 58. The ground movable electrode 59 and the movable electrode 7 supported by the vacuum ground container 4 are connected to the ground contact 57 and the load contact 5.
8 are arranged. When the movable electrode 7 is in contact with the load-side contact 58, the movable electrode 59 is separated from the ground-side contact 57, and performs operations opposite to each other. Outside the two electrodes, a flexible conductor 22 is connected between the fixed electrode 5 and the ground-side conductor 37 connected to the multi-phase bus 8 and the two electrodes.
Connected by

【0048】即ち、可動電極7と負荷側接点57とが接
触した投入状態で、負荷側接点58から可動電極7を上
方に移動すると同時に、接地可動電極59が下方に移動
して接地側接点58に接触して接地状態になる。また前
者では投入状態から遮断状態になる。この実施例では可
動電極7と負荷側接点58との直角方向つまり横方向に
複数相の母線8と接続している固定電極5を配置し、固
定電極5と可動電極7との間及び接地可動電極59と接
地側接点58との間をフレキシブル導体22で接続した
1回路スイッチギヤにも使用できる。又固定電極5と可
動電極7との間をフレキシブル導体22で接続して1回
路スイッチギヤとしても使用できる。
That is, when the movable electrode 7 and the load-side contact 57 are in contact with each other, the movable electrode 7 is moved upward from the load-side contact 58, and at the same time, the ground movable electrode 59 is moved downward and the ground-side contact 58 is moved. To ground. In the former case, the state is changed from the closed state to the closed state. In this embodiment, the fixed electrode 5 connected to the buses 8 of a plurality of phases is arranged in a direction perpendicular to the movable electrode 7 and the load-side contact 58, that is, in the lateral direction. It can also be used for a one-circuit switchgear in which the flexible conductor 22 connects the electrode 59 and the ground contact 58. In addition, the fixed electrode 5 and the movable electrode 7 are connected by the flexible conductor 22 and can be used as a one-circuit switch gear.

【0049】真空接地容器内の可動電極7と接地可動電
極59との間に中央部0を設け、中央部0と可動電極7
側と接地可動電極59側と真空接地容器内面との間の距
離をL1とL2とする。また中央部0を介して右側及び
左側の真空接地容器内の容積をC5とC6とする。これ
らのL1及びL2とC5及びC6との関係は、L1>L
2とC5>C6との関係にあり、上述と同等の効果を達
成することが出来る。本発明の回路分スイッチギヤは、
上述の他に可動電極が固定電極と開閉する遮断器,真空
遮断器等の開閉器,固定電極と可動電極が接離する断路
器,接地開閉器,開閉器等の単独製品としても使用する
ことが出来る。更に上述の他に、絶縁媒体例えばSF6
ガスを使用した絶縁開閉器にも適用できる。
A central portion 0 is provided between the movable electrode 7 and the ground movable electrode 59 in the vacuum grounded container, and the central portion 0 and the movable electrode 7
L1 and L2 denote the distances between the side, the ground movable electrode 59 side, and the inner surface of the vacuum grounding vessel. The volumes in the right and left vacuum grounded containers via the center portion 0 are denoted by C5 and C6. The relationship between L1 and L2 and C5 and C6 is L1> L
2 and C5> C6, and the same effects as described above can be achieved. The circuit switchgear of the present invention,
In addition to the above, it can also be used as a single product such as a circuit breaker in which the movable electrode opens and closes with the fixed electrode, a switch such as a vacuum circuit breaker, a disconnector in which the fixed electrode and the movable electrode come and go, a ground switch, and a switch. Can be done. In addition to the above, an insulating medium such as SF 6
It can also be applied to insulated switches using gas.

【0050】[0050]

【発明の効果】以上のように本発明のスイッチギヤによ
れば、可動電極より固定電極とフレキシブル導体を介し
て負荷側導体に電力を供給しているので、電流通路を従
来技術のそれに比べて大幅に短縮できるようになり、電
気抵抗が少なくなり、この分電力損失及び発生熱を少な
くすることが出来るようになった。又可動電極が直接負
荷側導体に摺動しないフレキシブル導体で負荷側導体と
可動電極との間を接続しており、負荷側導体及び可動電
極に溶着は生じることがなく、操作機構部及び真空スイ
ッチギヤを小型化することが出来るばかりか、また電流
遮断特性も向上するので、この分、更に真空接地容器を
小型化できる。このことは、接地装置を除去した1回路
分スイッチギヤにも使用することができ、接地装置を除
去した分真空容器,操作機構部も小型化できるので、更
に、入り切り時に両電極5,7より金属微粒子が電流に
より蒸発し、金属蒸気を発生するが、容積5Cは容積6
Cより広くして、金属蒸気の多くは容積5C内を拡散
し、残留イオンが少なくなり、絶縁回復の遅れによる電
流遮断性能の低下を防止出来き、電流遮断性能を向上す
ることが出来るようになったので、この分スイッチギヤ
も当然小型化することができる。
As described above, according to the switchgear of the present invention, electric power is supplied from the movable electrode to the load-side conductor via the fixed electrode and the flexible conductor. As a result, the electric resistance can be reduced, and the power loss and the generated heat can be reduced accordingly. Also, the movable electrode is connected to the movable electrode with a flexible conductor that does not slide directly on the load-side conductor, so that no welding occurs on the load-side conductor and the movable electrode. Not only can the gear be reduced in size, but also the current interruption characteristics are improved, so that the vacuum grounding container can be further reduced in size. This can be used for the switchgear for one circuit without the grounding device, and the vacuum vessel and the operating mechanism can be reduced in size by removing the grounding device. The metal fine particles evaporate due to the electric current to generate a metal vapor.
In order to improve the current interruption performance, it is possible to prevent the deterioration of the current interruption performance due to the delay of the insulation recovery by preventing most of the metal vapor from diffusing in the volume 5C and reducing the residual ions. Therefore, the switchgear can be reduced in size accordingly.

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

【図1】本発明の実施例である集合型スイッチギヤの回
路図。
FIG. 1 is a circuit diagram of a collective switchgear according to an embodiment of the present invention.

【図2】図1に使用した回路スイッチギヤの構成を示す
回路図。
FIG. 2 is a circuit diagram showing a configuration of a circuit switchgear used in FIG.

【図3】図1に使用した回路スイッチギヤの構成を示す
側断面図。
FIG. 3 is a side sectional view showing a configuration of a circuit switchgear used in FIG. 1;

【図4】図3を左側から見た正面図。FIG. 4 is a front view of FIG. 3 as viewed from the left side.

【図5】図1から図4に示した母線接続端子台の平面
図。
FIG. 5 is a plan view of the bus connection terminal block shown in FIGS. 1 to 4;

【図6】図3に示した回路分スイッチギヤの構成を示す
遮断,断路状態での側断面図。
FIG. 6 is a side sectional view showing a configuration of a switchgear for a circuit shown in FIG. 3 in a cutoff / disconnected state;

【図7】図6の回路分スイッチギヤの接地状態を示す側
断面図。
FIG. 7 is a side sectional view showing a grounded state of the switchgear for the circuit of FIG. 6;

【図8】図6の回路分スイッチギヤの投入状態を示す側
断面図。
8 is a side sectional view showing a closed state of the switchgear for the circuit of FIG. 6;

【図9】本発明の他の実施例である回路スイッチギヤの
構成を示す側断面図。
FIG. 9 is a side sectional view showing a configuration of a circuit switchgear according to another embodiment of the present invention.

【図10】図9の回路スイッチギヤの接地状態を示す側
断面図。
FIG. 10 is a side sectional view showing a grounded state of the circuit switchgear of FIG. 9;

【符号の説明】[Explanation of symbols]

1〜3…3回路分スイッチギヤ、2X〜2Y…相スイッ
チギヤ、4…真空接地容器、5…固定電極、6…接地装
置、7…可動電極、8…内部母線、9…負荷側導体、1
1…電源側ケーブル、22…フレキシブル導体、30…
可動ブレード。
1 to 3 switch gears for 3 circuits, 2X to 2Y phase switch gears, 4 ground vacuum containers, 5 fixed electrodes, 6 grounding devices, 7 movable electrodes, 8 internal buses, 9 load-side conductors, 1
DESCRIPTION OF SYMBOLS 1 ... Power supply side cable, 22 ... Flexible conductor, 30 ...
Movable blade.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 森田 歩 茨城県日立市大みか町七丁目2番1号 株 式会社日立製作所電力・電機開発本部内 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Ayumu Morita 7-2-1, Omika-cho, Hitachi City, Ibaraki Pref.

Claims (14)

【特許請求の範囲】[Claims] 【請求項1】真空接地容器内に配置された接地電極と固
定電極とに接離する可動電極と、可動電極と一緒に動く
電気的手段に接続された負荷側導体とを備え、接地電極
と固定電極との中央に位置する可動電極の中心から固定
電極側真空接地容器内の容積を接地電極側真空接地容器
内の容積より広くなるように真空接地容器を構成するこ
とを特徴とするスイッチギヤ。
A movable electrode is provided in a vacuum grounded container, the movable electrode being in contact with and separated from a ground electrode and a fixed electrode, and a load-side conductor connected to electrical means that moves together with the movable electrode. A switchgear comprising a vacuum grounding vessel configured such that a volume in the fixed electrode side vacuum grounding vessel is larger than a volume in the grounding electrode side vacuum grounding vessel from the center of the movable electrode located at the center with the fixed electrode. .
【請求項2】接地電極と固定電極との中央に位置する可
動電極の中心から固定電極側及び接地電極側の真空接地
容器までの距離をL1及びL2とすれば、L1>L2な
るように真空接地容器を構成することを特徴とする請求
項1記載のスイッチギヤ。
2. When the distances from the center of the movable electrode located at the center between the ground electrode and the fixed electrode to the vacuum earth containers on the fixed electrode side and the ground electrode side are L1 and L2, the vacuum is maintained so that L1> L2. The switchgear according to claim 1, wherein the switchgear constitutes a grounding container.
【請求項3】主軸を支点として接地電極と固定電極とに
接離する可動電極であることを特徴とする請求項1記載
のスイッチギヤ。
3. A switchgear according to claim 1, wherein said switchgear is a movable electrode which comes into contact with and separates from a ground electrode and a fixed electrode with the main shaft as a fulcrum.
【請求項4】真空接地容器内に配置された接地電極及び
負荷側導体に接離する可動電極及び可動接地電極と、可
動電極と一緒に動く電気的手段に接続された固定電極と
を備えたスイッチギヤであることを特徴とする請求項1
記載のスイッチギヤ。
4. A movable ground electrode and a movable ground electrode disposed in a vacuum ground vessel and in contact with and separated from a load-side conductor, and a fixed electrode connected to electrical means that moves together with the movable electrode. 2. A switch gear.
The described switchgear.
【請求項5】可動電極が投入位置から接地位置に移動す
る間に断路位置を有することを特徴とする請求項1又は
4記載のスイッチギヤ。
5. The switchgear according to claim 1, wherein the switchgear has a disconnection position while the movable electrode moves from the closing position to the grounding position.
【請求項6】上記電気的手段にフレキシブル導体を使用
することを特徴とする請求項1又は4記載のスイッチギ
ヤ。
6. The switchgear according to claim 1, wherein a flexible conductor is used for said electric means.
【請求項7】上記電気的手段に湾曲形状のフレキシブル
導体を使用し、湾曲形状の突出部が接地電極側に向いて
いることを特徴とする請求項1記載のスイッチギヤ。
7. The switchgear according to claim 1, wherein a curved flexible conductor is used for the electric means, and the curved projection is directed toward the ground electrode.
【請求項8】上記真空接地容器内接地電極と固定電極及
び可動電極と負荷側導体とを十字状に配置することを特
徴とする請求項1記載のスイッチギヤ。
8. The switch gear according to claim 1, wherein the ground electrode, the fixed electrode, the movable electrode, and the load-side conductor in the vacuum ground container are arranged in a cross shape.
【請求項9】上記可動電極と可動電極を駆動する駆動手
段との一部に電気阻止手段を設けることを特徴とする請
求項1又は4記載のスイッチギヤ。
9. The switchgear according to claim 1, wherein an electric blocking means is provided in a part of said movable electrode and a driving means for driving said movable electrode.
【請求項10】上記可動電極と可動電極を移動する駆動
手段との一部にセラミック部材を設けることを特徴とす
る請求項1又は4記載のスイッチギヤ。
10. The switch gear according to claim 1, wherein a ceramic member is provided in a part of said movable electrode and a driving means for moving said movable electrode.
【請求項11】遮断器,断路器,負荷開閉器,接地装置
のいずれか1つ又は2以上を集合したスイッチギヤに使
用をすることを特徴とする請求項1又は4記載のスイッ
チギヤ。
11. The switchgear according to claim 1, wherein the switchgear is used for a switchgear in which at least one of a circuit breaker, a disconnector, a load switch, and a grounding device is assembled.
【請求項12】上記真空接地容器の代りに絶縁媒体を有
する密閉容器を使用することを特徴とする請求項1又は
4記載のスイッチギヤ。
12. The switchgear according to claim 1, wherein a sealed container having an insulating medium is used in place of said vacuum grounding container.
【請求項13】真空接地容器内に配置された接地側固定
電極及び可動側固定電極と、両電極の各々と接離する接
地側可動電極及び可動電極とを配置し、両電極間の中央
から可動電極側真空接地容器内の容積を、接地電極側真
空接地容器内の容積より広くなるように真空接地容器を
構成することを特徴とするスイッチギヤ。
13. A ground-side fixed electrode and a movable-side fixed electrode disposed in a vacuum grounding container, and a ground-side movable electrode and a movable electrode that are in contact with and separated from each of the two electrodes, and are arranged from the center between the two electrodes. A switchgear, wherein the vacuum grounding container is configured such that the volume in the movable electrode side vacuum grounding container is larger than the volume in the grounding electrode side vacuum grounding container.
【請求項14】両電極間の中央から可動電極側真空接地
容器内面及び中央から接地電極側真空接地容器内面まで
の距離をL1及びL2とすれば、L1>L2になるよう
に真空接地容器を構成することを特徴とする請求項1記
載のスイッチギヤ。
14. When the distances from the center between the two electrodes to the inner surface of the movable electrode side vacuum grounding container and the center to the grounding electrode side vacuum grounding container inner surface are L1 and L2, the vacuum grounding container is set so that L1> L2. The switchgear according to claim 1, wherein the switchgear is configured.
JP24239197A 1997-07-23 1997-09-08 Switchgear Expired - Fee Related JP3775010B2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP24239197A JP3775010B2 (en) 1997-09-08 1997-09-08 Switchgear
TW87111261A TW389921B (en) 1997-07-23 1998-07-10 Vacuum switch and vacuum switch gear using the same
US09/114,944 US6144005A (en) 1997-07-23 1998-07-14 Vacuum switch and a vacuum switchgear using the same
RU98114866/09A RU2195734C2 (en) 1997-07-23 1998-07-22 Vacuum switch and vacuum switchgear
CNB981163572A CN1178253C (en) 1997-07-23 1998-07-22 Vacuum switch and vacuum switch apparatus using the same
CNB2004100859577A CN100341088C (en) 1997-07-23 1998-07-22 Vacuum switch and a vacuum switchgear using the same
KR10-1998-0029589A KR100472170B1 (en) 1997-07-23 1998-07-23 Vacuum switch and vacuum switch gear using it
EP98113825A EP0893811B1 (en) 1997-07-23 1998-07-23 A vacuum switch and a vacuum switchgear using the same
DE69836300T DE69836300T2 (en) 1997-07-23 1998-07-23 Vacuum switch and this using vacuum switchgear
US09/562,756 US6259051B1 (en) 1997-07-23 2000-05-02 Vacuum switch and a vacuum switchgear using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24239197A JP3775010B2 (en) 1997-09-08 1997-09-08 Switchgear

Publications (2)

Publication Number Publication Date
JPH1189025A true JPH1189025A (en) 1999-03-30
JP3775010B2 JP3775010B2 (en) 2006-05-17

Family

ID=17088464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24239197A Expired - Fee Related JP3775010B2 (en) 1997-07-23 1997-09-08 Switchgear

Country Status (1)

Country Link
JP (1) JP3775010B2 (en)

Also Published As

Publication number Publication date
JP3775010B2 (en) 2006-05-17

Similar Documents

Publication Publication Date Title
US6144005A (en) Vacuum switch and a vacuum switchgear using the same
JP3164033B2 (en) Busbar connection structure and insulating cover
JP4162664B2 (en) Vacuum switchgear
EP2017866B1 (en) Vacuum insulated switchgear
JPH06335125A (en) Switching device
JPH11113118A (en) Switchgear
JPH1189027A (en) Switch gear
JP3374723B2 (en) Vacuum switchgear
JP3775010B2 (en) Switchgear
JP3402135B2 (en) Vacuum switch and vacuum switchgear
JP3374724B2 (en) Vacuum switchgear
JPH11113117A (en) Switchgear
JPH1189026A (en) Switch gear
JP3402134B2 (en) Vacuum switch and vacuum switchgear
WO2000021105A1 (en) Vacuum switch gear
JP2000082367A (en) Switch and switch gear
JPH1189024A (en) Switch gear
JP2005005277A (en) Vacuum switch
JP2002165319A (en) Vacuum switchgear
JPH11113119A (en) Bus connecting construction
KR100472170B1 (en) Vacuum switch and vacuum switch gear using it
JPH1141728A (en) Switch gear
JPH087764Y2 (en) Gas insulated switch
JP2000040449A (en) Vacuum switch and vacuum switch gear using it
JPH03159505A (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: 20040319

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20040319

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20050603

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20050614

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050801

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: 20060131

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20060213

LAPS Cancellation because of no payment of annual fees