JPH0666222U - Gas insulated switchgear - Google Patents
Gas insulated switchgearInfo
- Publication number
- JPH0666222U JPH0666222U JP745293U JP745293U JPH0666222U JP H0666222 U JPH0666222 U JP H0666222U JP 745293 U JP745293 U JP 745293U JP 745293 U JP745293 U JP 745293U JP H0666222 U JPH0666222 U JP H0666222U
- Authority
- JP
- Japan
- Prior art keywords
- plug
- lightning arrester
- insulated switchgear
- cable
- housing
- 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
Links
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
(57)【要約】
【目的】 構成部品を少なくして小形化が可能なガス絶
縁開閉装置を提供する。
【構成】 プラグにより断路可能な避雷器が筐体１の内
部から除去される。そして、プラグイン機構を構成する
一方のプラグ１３ａが筐体１に取り付けられ、プラグ１
３ａは開閉器７を介してケーブル４と遮断器３との間に
接続される。そして、筐体１の外部から接地手段１４
と、避雷器６を有する避雷器手段１５とを選択的に接続
することができるようにするため、接地手段１４には他
方のプラグ１３ｂが設けられる一方、避雷器６にも他方
のプラグ１３ｂが接続される。
(57) [Abstract] [Purpose] To provide a gas-insulated switchgear that can be downsized by reducing the number of components. [Structure] A lightning arrester that can be disconnected by a plug is removed from the inside of the housing 1. Then, one plug 13a constituting the plug-in mechanism is attached to the housing 1, and the plug 1
3a is connected between the cable 4 and the circuit breaker 3 via the switch 7. Then, the grounding means 14 is provided from the outside of the housing 1.
And the lightning arrester means 15 having the lightning arrester 6 can be selectively connected, the grounding means 14 is provided with the other plug 13b, and the lightning arrester 6 is also connected with the other plug 13b. .
Description
【０００１】[0001]
本考案はガス絶縁開閉装置に関し、構成部品を少なくして小形化を図ったもの である。 The present invention relates to a gas-insulated switchgear, in which the number of components is reduced and the size is reduced.
【０００２】[0002]
受電用のガス絶縁開閉装置では、一般的にケーブル引き込み方式が採用されて おり、図２に示すように構成されている。図は単線で示すものであり、１は機器 を収容する筐体、２は電源母線、３は遮断器、４はケーブル、５はケーブルヘッ ド、６は避雷器、７は接地用の開閉器、８，９は接地装置付き断路器、１０，１ １は絶縁スペーサ、１２はプラグである。図のように、開閉器７による接地と避 雷器６の接地は、いずれも絶縁スペーサ１０，１１を介して筐体１の外部におい て行われている。 A gas-insulated switchgear for receiving electricity generally adopts a cable pull-in system and is configured as shown in FIG. The figure shows a single wire, 1 is a housing for housing equipment, 2 is a power bus, 3 is a circuit breaker, 4 is a cable, 5 is a cable head, 6 is a lightning arrester, 7 is a switch for grounding, 8 and 9 are disconnecting switches with a grounding device, 10 and 11 are insulating spacers, and 12 is a plug. As shown in the figure, the grounding by the switch 7 and the grounding of the lightning arrester 6 are both performed outside the housing 1 through the insulating spacers 10 and 11.
【０００３】[0003]
ところが、接地装置と避雷器とを夫々別個に設けていることから、ガス絶縁開 閉装置の小形化に限界がある。一方、プラグはケーブル及び盤の試験である耐電 圧試験を行う際にのみ避雷器を主回路から分離するために必要であるが、通常は 全く不要である。そして、このように通常は不要なプラグを設けているためにガ ス絶縁開閉装置の部品数が多くなる。 However, since the grounding device and the lightning arrester are separately provided, there is a limit to downsizing the gas insulation opening / closing device. On the other hand, the plug is necessary to separate the arrester from the main circuit only when conducting a withstand voltage test, which is a cable and board test, but it is usually not necessary at all. In addition, since the unnecessary plug is usually provided in this way, the number of parts of the gas insulated switchgear increases.
【０００４】 そこで本考案は、かかる課題を解決したガス絶縁開閉装置を提供することを目 的とする。Therefore, the present invention aims to provide a gas-insulated switchgear that solves the above problems.
【０００５】[0005]
かかる目的を達成するための本考案の構成は、電源母線とケーブルとの間に介 在させる遮断器と、遮断器とケーブルとの間に断路可能に接続される避雷器と、 遮断器とケーブルとの間に開閉器を介して接続される接地手段と、遮断器等を収 容する筐体とで構成されるガス絶縁開閉装置において、プラグイン機構を構成す る一方のプラグを筐体に取り付けると共に当該一方のプラグを前記開閉器を介し て遮断器とケーブルとの間に接続し、他方のプラグを有する接地手段と、避雷器 に他方のプラグを接続した避雷器手段とを個別に設けて、接地手段又は避雷器手 段の他方のプラグを筐体の外部から一方のプラグに選択的に接続可能にしたこと を特徴とする。 The structure of the present invention for achieving such an object is provided by a circuit breaker interposed between a power bus and a cable, a lightning arrester disconnectably connected between the circuit breaker and the cable, a circuit breaker and a cable. In a gas-insulated switchgear consisting of a grounding means connected between the two via a switch and a casing that houses a circuit breaker, etc., one of the plugs that constitutes the plug-in mechanism is attached to the casing. In addition, the one plug is connected between the breaker and the cable via the switch, and the grounding means having the other plug and the lightning arrester means in which the other plug is connected to the lightning arrester are separately provided and grounded. It is characterized in that the other plug of the means or the arrester means can be selectively connected to the one plug from outside the housing.
【０００６】[0006]
耐電圧試験を行うときには、接地手段及び避雷器手段を接続することなく行う 。ガス絶縁開閉装置として通常の使い方をするには、一方のプラグに他方のプラ グを結合することによって、筐体の外部から避雷器手段を接続する。次に、避雷 器手段を接続した通常の状態からガス絶縁開閉装置の保守，点検等をする場合は 、遮断器を遮断したのちに停電を確認し、開閉器を開いたのちに避雷器手段を取 り外す。そして、一方のプラグに他方のプラグを結合することによって、筐体の 外部から接地手段を接続する。このあと、開閉器を閉じて遮断器よりもケーブル 側の主回路を接地させて筐体の内部での感電事故を防止する。 When performing the withstanding voltage test, do not connect the grounding means and the arrester means. For normal use as a gas-insulated switchgear, the arrester means is connected from the outside of the housing by connecting one plug to the other. Next, when maintaining or inspecting the gas-insulated switchgear from the normal state where the arrester means is connected, shut off the breaker, check for power failure, open the switch, and then remove the arrester means. Remove. Then, by connecting one plug to the other plug, the grounding means is connected from the outside of the housing. After that, close the switch and ground the main circuit on the cable side of the circuit breaker to prevent an electric shock accident inside the housing.
【０００７】[0007]
以下、本考案を図面に示す実施例に基づいて詳細に説明する。なお、本実施例 は従来のガス絶縁開閉装置の一部を改良したものなので、従来と同一部分には同 一符号を付して説明を省略し、異なる部分のみを説明する。 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. Since the present embodiment is an improvement of a part of the conventional gas-insulated switchgear, the same parts as those in the prior art are designated by the same reference numerals and the description thereof is omitted.
【０００８】 本考案によるガス絶縁開閉装置の構成を、図１に示す。図２と比較すればわか るように、スペーサ１１を介して接地されると共にプラグ１２により断路可能な 避雷器６が筐体１の内部から除去される。一方、接地のためのスペーサ１０も除 去され、スペーサ１０の代わりにプラグイン機構を構成する一方のプラグ１３ａ が筐体１に取り付けられ、プラグ１３ａは前記開閉器７を介してケーブル４と遮 断器３との間に接続されている。The structure of the gas-insulated switchgear according to the present invention is shown in FIG. As can be seen from comparison with FIG. 2, the arrester 6 that is grounded via the spacer 11 and can be disconnected by the plug 12 is removed from the inside of the housing 1. On the other hand, the spacer 10 for grounding is also removed, and instead of the spacer 10, one plug 13a constituting a plug-in mechanism is attached to the housing 1, and the plug 13a is shielded from the cable 4 via the switch 7. It is connected between the breaker 3.
【０００９】 そして、接地のための接地手段１４と避雷器６を有する避雷器手段１５とを筐 体１の外部から選択的に接続することができるようにするため、接地手段１４に は他方のプラグ１３ｂが設けられる一方、避雷器６にも他方のプラグ１３ｂが接 続されている。In order to enable the grounding means 14 for grounding and the lightning arrester means 15 having the lightning arrester 6 to be selectively connected from the outside of the casing 1, the grounding means 14 has the other plug 13 b. On the other hand, the lightning arrester 6 is also connected to the other plug 13b.
【００１０】 次に、かかるガス絶縁開閉装置の作用を説明する。耐電圧試験を行うときには 、ガス絶縁開閉装置に接地手段１４及び避雷器手段１５を接続することなく行う 。ガス絶縁開閉装置として本来の使い方をするには、一方のプラグ１３ａに他方 のプラグ１３ｂを結合することによって、筐体１の外部から避雷器手段１５を接 続する。次に、避雷器手段１５を接続した通常の状態からガス絶縁開閉装置の保 守，点検等をする場合は、遮断器３を遮断したのちに停電を確認し、開閉器７を 開いたのちに避雷器手段１５を取り外す。そして、一方のプラグ１３ａに他方の プラグ１３ｂを結合することによって、筐体１の外部から接地手段１４を接続す る。このあと、開閉器７を閉じて遮断器３よりもケーブル４側の主回路を接地さ せて筐体１の内部での感電事故を防止する。このように、開閉器７を接地のため のスイッチとして使用したり、あるいは避雷器６の切り放し用の開閉器として使 用したり、開閉器７を２種類の構成部品として兼用できる。Next, the operation of the gas-insulated switchgear will be described. When performing the withstand voltage test, the gas insulated switchgear is not connected to the grounding means 14 and the lightning arrester means 15. In order to use the gas insulated switchgear originally, the lightning arrester means 15 is connected from the outside of the housing 1 by connecting one plug 13a to the other plug 13b. Next, when maintaining or inspecting the gas-insulated switchgear from the normal state where the lightning arrester means 15 is connected, the circuit breaker 3 is shut off, a power failure is confirmed, the switch 7 is opened, and then the lightning arrester is opened. Remove the means 15. Then, the grounding means 14 is connected from the outside of the housing 1 by coupling one plug 13a to the other plug 13b. After that, the switch 7 is closed and the main circuit on the cable 4 side of the circuit breaker 3 is grounded to prevent an electric shock accident inside the housing 1. In this way, the switch 7 can be used as a switch for grounding, or can be used as a switch for disconnecting the lightning arrester 6, and the switch 7 can be used as two kinds of components.
【００１１】[0011]
以上の説明からわかるように、本考案によるガス絶縁開閉装置によれば、従来 では筐体の内部に収容される避雷器を筐体の外部に着脱自在に接続したので、ガ ス絶縁開閉装置が小形化でき、また避雷器に故障が生じても避雷器は筐体の外部 に配置されているので容易に交換できる。更に、通常の使用状態では不要な、避 雷器用のプラグがないので、構成部品の数が従来よりも減少し、信頼性が向上す ると共に安価なガス絶縁開閉装置を提供できる。 As can be seen from the above description, according to the gas insulated switchgear according to the present invention, the lightning arrester conventionally housed inside the housing is detachably connected to the outside of the housing. In addition, even if the lightning arrester fails, the lightning arrestor is located outside the housing and can be easily replaced. Furthermore, since there is no lightning arrester plug, which is unnecessary in normal use, the number of components is reduced as compared with the conventional one, reliability is improved, and an inexpensive gas insulated switchgear can be provided.
【図面の簡単な説明】[Brief description of drawings]
【図１】本考案によるガス絶縁開閉装置の一実施例を示
す結線図。FIG. 1 is a connection diagram showing an embodiment of a gas insulated switchgear according to the present invention.
【図２】従来のガス絶縁開閉装置の結線図。FIG. 2 is a wiring diagram of a conventional gas-insulated switchgear.
１…筐体 ２…電源母線 ３…遮断器 ４…ケーブル ６…避雷器 ７…開閉器 １３ａ…一方のプラグ １３ｂ…他方のプラグ １４…接地手段 １５…避雷器手段 DESCRIPTION OF SYMBOLS 1 ... Housing 2 ... Power bus 3 ... Circuit breaker 4 ... Cable 6 ... Lightning arrester 7 ... Switch 13a ... One plug 13b ... The other plug 14 ... Grounding means 15 ... Lightning arrester means
Claims (1)
遮断器と、遮断器とケーブルとの間に断路可能に接続さ
れる避雷器と、遮断器とケーブルとの間に開閉器を介し
て接続される接地手段と、遮断器等を収容する筐体とで
構成されるガス絶縁開閉装置において、 プラグイン機構を構成する一方のプラグを筐体に取り付
けると共に当該一方のプラグを前記開閉器を介して遮断
器とケーブルとの間に接続し、他方のプラグを有する接
地手段と、避雷器に他方のプラグを接続した避雷器手段
とを個別に設けて、接地手段又は避雷器手段の他方のプ
ラグを筐体の外部から一方のプラグに選択的に接続可能
にしたことを特徴とするガス絶縁開閉装置。1. A circuit breaker interposed between a power bus and a cable, a lightning arrester that is disconnectably connectable between the circuit breaker and the cable, and a switch between the circuit breaker and the cable. In a gas-insulated switchgear comprising a grounding means and a casing that houses a circuit breaker, etc., one plug constituting a plug-in mechanism is attached to the casing, and the one plug is connected via the switch. Connected between the circuit breaker and the cable, the grounding means having the other plug and the lightning arrester means having the other plug connected to the lightning arrester are separately provided, and the other plug of the grounding means or the lightning arrester means is provided in the housing. A gas-insulated switchgear, characterized in that it can be selectively connected to one plug from outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993007452U JP2601169Y2 (en) | 1993-02-26 | 1993-02-26 | Gas insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993007452U JP2601169Y2 (en) | 1993-02-26 | 1993-02-26 | Gas insulated switchgear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0666222U true JPH0666222U (en) | 1994-09-16 |
| JP2601169Y2 JP2601169Y2 (en) | 1999-11-08 |
Family
ID=11666223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993007452U Expired - Fee Related JP2601169Y2 (en) | 1993-02-26 | 1993-02-26 | Gas insulated switchgear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2601169Y2 (en) |
-
1993
- 1993-02-26 JP JP1993007452U patent/JP2601169Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2601169Y2 (en) | 1999-11-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |