JPH0134487Y2 - - Google Patents

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Publication number
JPH0134487Y2
JPH0134487Y2 JP1981077835U JP7783581U JPH0134487Y2 JP H0134487 Y2 JPH0134487 Y2 JP H0134487Y2 JP 1981077835 U JP1981077835 U JP 1981077835U JP 7783581 U JP7783581 U JP 7783581U JP H0134487 Y2 JPH0134487 Y2 JP H0134487Y2
Authority
JP
Japan
Prior art keywords
movable contact
insulated
grounding
gas
contact
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.)
Expired
Application number
JP1981077835U
Other languages
Japanese (ja)
Other versions
JPS57189210U (en
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 filed Critical
Priority to JP1981077835U priority Critical patent/JPH0134487Y2/ja
Publication of JPS57189210U publication Critical patent/JPS57189210U/ja
Application granted granted Critical
Publication of JPH0134487Y2 publication Critical patent/JPH0134487Y2/ja
Expired legal-status Critical Current

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  • Gas-Insulated Switchgears (AREA)

Description

【考案の詳細な説明】 本案はガス絶縁機器用接地装置の改良に関す
る。ガス絶縁開閉装置(以下GISと云う)等のガ
ス絶縁機器では主要収納機器の接地を図るため接
地装置が用いられる。この接地装置としては、従
来から並切形の構造のものが採用されている。
[Detailed Description of the Invention] The present invention relates to an improvement of a grounding device for gas insulated equipment. In gas insulated equipment such as gas insulated switchgear (hereinafter referred to as GIS), a grounding device is used to ground the main storage equipment. Conventionally, this grounding device has a parallel-cut structure.

ところで、第1図に示す如く、しや断器GCB、
断路器DS、接地装置ESW等で構成されたGISは
他の系統Lと並架されることがあり、この様な場
合線路用接地装置ESWには、併架回線両端の線
路用ESWを投入した場合誘導電流iが流れる。
前記従来形の接地装置では、77KVGISにおいて
回復電圧1.5KV、誘導電流300A程度の電流開閉
責務が限界であつた。
By the way, as shown in Figure 1, the breaker GCB,
A GIS consisting of a disconnector DS, a grounding device ESW, etc. may be installed in parallel with another system L, and in such cases, the track grounding device ESW is equipped with the track ESW at both ends of the parallel line. In this case, an induced current i flows.
The conventional grounding device has a recovery voltage of 1.5KV and an induced current of about 300A at 77KV GIS, which is the limit for current switching duties.

ところが最近では500KV、300KV等の大容量
送電線との併架系統にGISが多用されるようにな
り、この場合、接地装置に要求される誘導電流開
閉性能は70KV級GIS用のものにおいて、電圧で
3〜10KV、電流で300〜800A程度となり、苛酷
な回復電圧条件のもとで大きな誘導電流を開閉で
きる責務が要求される。
However, recently, GIS has been frequently used in parallel systems with large-capacity transmission lines such as 500KV and 300KV, and in this case, the induced current switching performance required of the grounding device is higher than that for 70KV class GIS. The voltage is 3 to 10 KV and the current is approximately 300 to 800 A, requiring the ability to open and close large induced currents under severe recovery voltage conditions.

本案はこの要求に応えて案出されたもので、極
めて簡単な構造で大きな誘導電流開閉能力を有す
るガス絶縁機器用接地装置を提供することを目的
とする。
The present invention was devised in response to this demand, and the object is to provide a grounding device for gas-insulated equipment that has an extremely simple structure and has a large induced current switching ability.

以下、第2図、第3図の実施例に基づき本案を
説明する。図において、1はGISにおけるガスし
や断器等の収納エレメントの一端に接続されてい
る充電部側導体、2はGISの容器で内部にSF6
ス等の絶縁ガスが充填されている。3は前記導体
1に取付けられた固定コンタクト、4は前記導体
1の先端に取付けられ固定コンタクト3を覆い電
界緩和を図るシールド、5は前記固定コンタクト
3に接離する可動コンタクトである。
The present invention will be explained below based on the embodiments shown in FIGS. 2 and 3. In the figure, 1 is a live part side conductor connected to one end of a storage element such as a gas tank or disconnector in the GIS, and 2 is a GIS container filled with an insulating gas such as SF 6 gas. 3 is a fixed contact attached to the conductor 1; 4 is a shield attached to the tip of the conductor 1 to cover the fixed contact 3 and alleviate the electric field; 5 is a movable contact that approaches and separates from the fixed contact 3.

この可動コンタクト5は、絶縁引出スペーサ6
と一体に成形された接地導体7をガイド兼ピスト
ンとして一直線上を摺動する同軸円筒状のシリン
ダ状に形成されており、前記導体7との間にパツ
フア室8が構成されている。パツフア室8から可
動コンタクト5の先端に通じるノズル9が設けら
れ、ガス吹付が可能なように構成されている。前
記接地導体7にはガイドピストンリング10が設
けられ、可動コンタクト5との間が半気密に構成
されている。可動コンタクト5は摺動接触子11
により前記接地導体7に摺動接触せしめられてい
る。
This movable contact 5 is connected to an insulating drawer spacer 6
It is formed into a coaxial cylindrical cylinder shape that slides in a straight line using a ground conductor 7 formed integrally with the conductor 7 as a guide and piston, and a puffer chamber 8 is formed between the conductor 7 and the ground conductor 7. A nozzle 9 is provided that communicates from the puffer chamber 8 to the tip of the movable contact 5, and is configured to be able to spray gas. A guide piston ring 10 is provided on the ground conductor 7, and the space between the ground conductor 7 and the movable contact 5 is semi-airtight. The movable contact 5 is a sliding contact 11
is brought into sliding contact with the ground conductor 7.

そして、前記接地導体7は、GISの容器2と接
地装置の容器19の軸方向に対して平行に配置さ
れており、また、接地導体7の他端は外部接地線
12により接地されている。可動コンタクト5は
3相分が絶縁固定板13により機械的に固定さ
れ、ガイド金具14に絶縁して取付けられ、この
金具14に嵌合したローラピン15及び操作レバ
ー16により3相一括で操作される。前記レバー
16は回転気密部17に支持された操作軸18に
より接地装置の容器19の外部から駆動される。
The grounding conductor 7 is arranged parallel to the axial directions of the GIS container 2 and the grounding device container 19, and the other end of the grounding conductor 7 is grounded by an external grounding wire 12. The three phases of the movable contact 5 are mechanically fixed by an insulating fixing plate 13, are insulated and attached to a guide fitting 14, and are operated by a roller pin 15 and an operating lever 16 fitted to this fitting 14 in the three phases at once. . The lever 16 is driven from outside the container 19 of the grounding device by an operating shaft 18 supported by a rotary airtight portion 17.

なお、20は容器2,19間に設けられたシー
ルドで、可動コンタクト5開路時、可動側の電界
を緩和する。
Note that 20 is a shield provided between the containers 2 and 19, which relieves the electric field on the movable side when the movable contact 5 is opened.

第2図は接地状態を示し、この状態では充電部
からの誘導電流は充電部側導体1−固定コンタク
ト3−可動コンタクト5−摺動接触子11−接地
導体7−外部接地線12を介して大地に流れる。
この状態で断路器を開路しGCB等の点検を行な
い得る。
FIG. 2 shows a grounded state, and in this state, the induced current from the live part flows through the live part side conductor 1 - fixed contact 3 - movable contact 5 - sliding contact 11 - ground conductor 7 - external ground wire 12. Flows into the earth.
In this state, the disconnector can be opened and the GCB etc. can be inspected.

前記点検を終ると、接地装置を開路してGCB
等を回路に挿入する。前記接地装置の開路は操作
軸18を反時計方向に回動させればよい。する
と、操作レバー16、ローラピン15、絶縁固定
板13を介して可動コンタクト5が下動する。こ
れによりパツフア室8の絶縁ガスが圧縮されてノ
ズル9から吹出され、両コンタクト3,5間に生
じたアークを吹消し大きな誘導電流しや断が可能
となる。
After completing the above inspection, open the grounding device and connect the GCB.
etc. into the circuit. The grounding device can be opened by rotating the operating shaft 18 counterclockwise. Then, the movable contact 5 moves downward via the operating lever 16, roller pin 15, and insulating fixing plate 13. As a result, the insulating gas in the puffer chamber 8 is compressed and blown out from the nozzle 9, thereby blowing out the arc generated between the contacts 3 and 5 and making it possible to cut off a large induced current.

接地導体7は絶縁引出スペーサ6と必ずしも一
体とする必要はなく、第4図の如くピストン部7
aとスペーサ部7bを機械的に接合してもよい。
The grounding conductor 7 does not necessarily have to be integrated with the insulating drawer spacer 6, and as shown in FIG.
a and the spacer portion 7b may be mechanically joined.

また、上述の説明では3相一括形の接地装置に
ついて本案を説明したが、単相形のものにも適用
できることは勿論である。
Further, in the above explanation, the present invention has been explained with respect to a three-phase all-in-one type grounding device, but it goes without saying that it can also be applied to a single-phase type.

而して、本案は接地装置にガス吹付機能を持た
せたので、誘導電流しや断性能が向上し、従来の
ものに比べ著しくしや断容量の増大が図れ、且つ
アーク時間が短縮され、コンタクトの寿命を長く
保持できる。絶縁引出導体を固定ピストンに、可
動コンタクトをシリンダーにそれぞれ兼用したの
で、極めて簡単な構造で接地装置にガス吹付機能
を持たせることができる。ガス機器接地用の可動
コンタクト部を絶縁引出導体部、即ち、絶縁引出
スペーサにより絶縁引出された接地導体で支持す
る構成としているので絶縁支持物を含め従来品に
比べ大巾に部品点数を低減できるのでシンプル、
小形、低コスト化といつた極めて実用的な効果を
奏する。
In this case, since the grounding device has a gas spraying function, the induced current cutting performance is improved, the cutting capacity is significantly increased compared to the conventional one, and the arc time is shortened. The life of the contacts can be maintained for a long time. Since the insulated lead-out conductor is used as the fixed piston and the movable contact is used as the cylinder, the earthing device can be provided with a gas blowing function with an extremely simple structure. Since the movable contact part for grounding gas equipment is supported by the insulated lead-out conductor part, that is, the ground conductor insulated by the insulated lead-out spacer, the number of parts including the insulated support can be greatly reduced compared to conventional products. So simple,
It has extremely practical effects such as small size and low cost.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はGISと他系統が併架されている場合の
簡略電気線図、第2図は本案の1実施例を示す側
断面図、第3図は第2図の−′線に沿える断
面縮小図、第4図は本案の他の実施例の要部を示
す1部断面図である。 3,5…固定、可動コンタクト、7…接地導
体、8…パツフア室、9…ノズル。
Figure 1 is a simplified electrical diagram when GIS and other systems are installed together, Figure 2 is a side sectional view showing one embodiment of this proposal, and Figure 3 can be seen along the -' line in Figure 2. FIG. 4 is a partial cross-sectional view showing a main part of another embodiment of the present invention. 3, 5... fixed, movable contact, 7... grounding conductor, 8... powder chamber, 9... nozzle.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 充電部に設けられた固定コンタクトと、接地容
器に対して絶縁して取付けられた可動接地コンタ
クトにより充電部の接地を行うガス絶縁機器用接
地装置に於て、固定コンタクトと可動コンタクト
及び可動コンタクトに電気的に接続され前記容器
の外部で接地をとるための絶縁引出導体を各相単
位で一直線上且つ前記接地容器の軸方向に対して
平行に配置し、前記絶縁引出導体の一端を固定ピ
ストンとし前記可動コンタクトの一端をシリンダ
状として前記固定ピストンに対して同軸円筒状で
半気密に且つ電気的に摺動可能に、しかも前記絶
縁引出導体により可動コンタクトを支持する構造
とし、前記固定ピストンと前記シリンダー部で形
成されるパツフア室を設け前記可動コンタクトの
他の一端に設けられたノズルを通して開路動作時
は前記パツフア室のガスを圧縮して前記両コンタ
クト間に吹き付ける如く構成したことを特徴とす
るガス絶縁機器用接地装置。
In a grounding device for gas-insulated equipment that grounds a live part by a fixed contact provided on the live part and a movable ground contact installed insulated from the grounding container, the fixed contact, movable contact, and movable contact are used. Insulated lead-out conductors for electrical connection and grounding outside the container are arranged in a straight line and parallel to the axial direction of the grounding container for each phase, and one end of the insulated lead-out conductor is set as a fixed piston. One end of the movable contact is cylindrical and has a coaxial cylindrical shape semi-airtightly and electrically slidable relative to the fixed piston, and the movable contact is supported by the insulated lead-out conductor, and the movable contact is supported by the insulated lead-out conductor. A puffer chamber formed by a cylinder portion is provided, and the gas in the puffer chamber is compressed and blown between the two contacts during a circuit opening operation through a nozzle provided at the other end of the movable contact. Grounding device for gas insulated equipment.
JP1981077835U 1981-05-27 1981-05-27 Expired JPH0134487Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1981077835U JPH0134487Y2 (en) 1981-05-27 1981-05-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981077835U JPH0134487Y2 (en) 1981-05-27 1981-05-27

Publications (2)

Publication Number Publication Date
JPS57189210U JPS57189210U (en) 1982-12-01
JPH0134487Y2 true JPH0134487Y2 (en) 1989-10-20

Family

ID=29873480

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981077835U Expired JPH0134487Y2 (en) 1981-05-27 1981-05-27

Country Status (1)

Country Link
JP (1) JPH0134487Y2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2959616B1 (en) * 2010-04-28 2012-12-14 Areva T & D Ag ELECTRICAL EQUIPMENT WITH REDUCED SIZE
FR2959592B1 (en) * 2010-04-28 2012-11-09 Areva T & D Ag GROUND DISCONNECT WITH REDUCED SIZE
FR2959587B1 (en) * 2010-04-28 2012-06-08 Areva T & D Ag CONNECTOR FOR METALLIC ENVELOPE ELECTRICAL EQUIPMENT AND SET FOR GROUNDING DISCONNECT WITH IMPROVED MECHANICAL RETENTION

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250574A (en) * 1975-10-21 1977-04-22 Takamatsu Electric Works Ltd Buffer load switch

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5259271U (en) * 1975-10-29 1977-04-30

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250574A (en) * 1975-10-21 1977-04-22 Takamatsu Electric Works Ltd Buffer load switch

Also Published As

Publication number Publication date
JPS57189210U (en) 1982-12-01

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