JP3460223B2 - Terminal device for oil-immersed transformer - Google Patents
Terminal device for oil-immersed transformerInfo
- Publication number
- JP3460223B2 JP3460223B2 JP07803199A JP7803199A JP3460223B2 JP 3460223 B2 JP3460223 B2 JP 3460223B2 JP 07803199 A JP07803199 A JP 07803199A JP 7803199 A JP7803199 A JP 7803199A JP 3460223 B2 JP3460223 B2 JP 3460223B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- insulated switchgear
- connection box
- transformer
- immersed transformer
- 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 - Fee Related
Links
Landscapes
- Transformer Cooling (AREA)
- Housings And Mounting Of Transformers (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は油入変圧器の端子装
置に関する。
【０００２】
【従来の技術】図３は、従来の油入変圧器の端子装置の
一例を示し、（Ａ）は油入変圧器に気中ブッシングを取
り付けた外観図、（Ｂ）は油入変圧器にガス絶縁開閉装
置を直結した外観図である。図３において、油入変圧器
１のタンク１ａの側壁に前記タンク内部と連通したガス
絶縁開閉装置直結用接続箱２を突設し、その上部に気中
ブッシング７が取り付けられており、気中ブッシング７
には変圧器本体からのリード５が直接接続される構造と
なっている。また、ガス絶縁開閉装置８との接続部の絶
縁スペーサー４はめくら蓋９によって塞がれている。
【０００３】図３（Ａ）に示すような気中ブッシング取
り付け形から図３（Ｂ）に示すようなガス絶縁開閉装置
直結形に切り替える際、油入変圧器１のタンク１ａ内部
及びガス絶縁開閉装置直結用接続箱２内部の絶縁油を抜
油した後に、気中ブッシング７を取り外し、めくら蓋９
ａを取り付ける。次にガス絶縁開閉装置直結用接続箱２
の内部で変圧器本体からのリード５を絶縁スペーサー４
に接続を変更し、ガス絶縁開閉装置より引き出されたリ
ード６ａを絶縁スペーサー４の固定接触子１２と接合す
る。その後、油入変圧器１のタンク１ａ及びガス絶縁開
閉装置直結用接続箱２に絶縁油を注油することにより、
図２（Ｂ）に示すようなガス絶縁開閉装置直結形油入変
圧器に切り替え可能な構造としている。
【０００４】
【発明が解決しようとする課題】以上説明したように、
従来の端子装置では抜油及び注油といった現地での油処
理作業が必要となり、また、設置スペースも増大してし
まう。そこで本発明は、端子を切り替える際の現地での
油処理作業を簡素化すると共に、切り替え後の設置スペ
ースを図１（Ｃ）に示すようなガス絶縁開閉装置直結専
用油入変圧器とほぼ同一とすることができる油入変圧器
の端子装置を提供することを課題としている。
【０００５】
【課題を解決するための手段】本発明の油入変圧器の端
子装置では、変圧器本体を収納した油入変圧器のタンク
の側壁にタンク内部と連通したガス絶縁開閉装置直結用
接続箱を突設させ、その先に絶縁スペーサーを介して気
中ブッシング用接続箱を取り付ける構造としたことを特
徴としている。
【０００６】このような構成とすることにより、気中ブ
ッシング用接続箱をガス絶縁開閉装置直結用接続箱から
取り外すことで、油入変圧器のタンクに直接ガス絶縁開
閉装置直結用接続箱が取り付けられているガス絶縁開閉
装置直結専用油入変圧器とほぼ同形のガス絶縁開閉装置
直結形油入変圧器に切り替え可能な構造となる。
【０００７】
【発明の実施の形態】図１は、本発明の油入変圧器の端
子装置の実施の形態例を示し、（Ａ）は油入変圧器に気
中ブッシングを取り付けた外観図、（Ｂ）は気中ブッシ
ング用接続箱を切り離した状態の外観図、（Ｃ）は油入
変圧器とガス絶縁開閉装置を直結した外観図である。図
１において、油入変圧器１のタンク１ａの側壁にガス絶
縁開閉装置直結用接続箱２が突設されており、このガス
絶縁開閉装置直結用接続箱２はタンク１ａの内部と連通
している。このガス絶縁開閉装置直結用接続箱２の先に
は気中ブッシング用接続箱３が取り付けられている。
【０００８】この際、ガス絶縁開閉装置直結用接続箱２
と気中ブッシング用接続箱３は、絶縁スペーサー４を介
して接続されている。この絶縁スペーサー４は図２に示
すように、お碗状のモールド製絶縁物１０に固定接触子
１１及び１２が装着されている。この固定接触子１１に
は変圧器本体中身からのリード５が接続され、固定接触
子１２はリード６によって気中ブッシング７と接続され
ている。
【０００９】気中ブッシング取り付け形からガス絶縁開
閉装置直結形に切り替えの際、気中ブッシング用接続箱
３内の絶縁油を抜油し、絶縁スペーサー４と気中ブッシ
ング７とを接続しているリード６を取り外す。その後、
図１（Ｂ）（Ｃ）に示すように気中ブッシング用接続箱
３を取り外し、その位置にガス絶縁開閉装置８を直結
し、リード６ａにより絶縁スペーサー４の固定接触子１
２と接合することにより、全ての作業が終了し、ガス絶
縁開閉装置直結形油入変圧器に切り替え完了となる。
【００１０】
【発明の効果】以上のように本発明によれば、気中ブッ
シング形からガス絶縁開閉装置に接続を切り替える際の
絶縁油の油処理作業を簡素化でき、また、切り替え後の
接続部のスペースをガス絶縁開閉装置直結専用変圧器と
同一の寸法とすることができ省スペース化を図ることが
できる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal device for an oil-immersed transformer. 2. Description of the Related Art FIG. 3 shows an example of a terminal device of a conventional oil-immersed transformer, wherein (A) is an external view of an oil-immersed transformer with an air bushing attached, and (B) is an oil-immersed transformer. It is an external view which connected the gas insulated switchgear directly to the transformer. In FIG. 3, a connection box 2 for directly connecting a gas insulated switchgear communicating with the inside of the tank is protruded from a side wall of a tank 1a of the oil-filled transformer 1, and an air bushing 7 is mounted on an upper portion thereof. Bushing 7
Has a structure in which the lead 5 from the transformer body is directly connected. The insulating spacer 4 at the connection with the gas insulated switchgear 8 is closed by a blind lid 9. When switching from an air bushing type as shown in FIG. 3A to a gas insulated switchgear direct connection type as shown in FIG. 3B, the inside of the tank 1a of the oil-immersed transformer 1 and the gas insulated switchgear are switched. After draining the insulating oil inside the connection box 2 for directly connecting the device, the air bushing 7 is removed and the blind lid 9 is removed.
Attach a. Next, a connection box 2 for direct connection to a gas insulated switchgear
The lead 5 from the transformer body is placed inside the
And the lead 6a drawn from the gas insulated switchgear is joined to the fixed contact 12 of the insulating spacer 4. After that, the insulating oil is injected into the tank 1a of the oil-immersed transformer 1 and the connection box 2 for directly connecting the gas-insulated switchgear,
The structure is such that it can be switched to a gas-insulated switchgear direct connection type oil-filled transformer as shown in FIG. 2 (B). [0004] As described above,
Conventional terminal devices require on-site oil treatment operations such as oil removal and lubrication, and also increase the installation space. Therefore, the present invention simplifies on-site oil treatment work when switching terminals, and the installation space after switching is almost the same as that of a dedicated oil-immersed transformer directly connected to a gas insulated switchgear as shown in FIG. It is an object of the present invention to provide a terminal device for an oil-immersed transformer that can perform the following. [0005] In the oil-immersed transformer terminal device of the present invention, a gas-insulated switchgear directly connected to the inside of the tank is connected to the side wall of the oil-immersed transformer housing the transformer main body. It is characterized in that a connection box is protruded, and a connection box for aerial bushings is attached to the connection box via an insulating spacer. [0006] With such a configuration, the connection box for directly connecting the gas insulated switchgear to the tank of the oil-immersed transformer is removed by removing the connection box for the air bushing from the connection box for directly connecting the gas insulated switchgear. It has a structure that can be switched to an oil-immersed transformer directly connected to a gas-insulated switchgear that is almost the same shape as the dedicated oil-immersed transformer directly connected to the gas-insulated switchgear. FIG. 1 shows an embodiment of a terminal device for an oil-immersed transformer according to the present invention, wherein (A) is an external view of an oil-immersed transformer with an air bushing attached thereto. (B) is an external view in a state where a junction box for aerial bushings is cut off, and (C) is an external view in which an oil-filled transformer and a gas insulated switchgear are directly connected. In FIG. 1, a connection box 2 for directly connecting a gas-insulated switchgear is provided on a side wall of a tank 1a of an oil-filled transformer 1, and this connection box 2 for directly connecting a gas-insulated switchgear communicates with the inside of the tank 1a. I have. An aerial bushing connection box 3 is attached to the end of the connection box 2 for directly connecting the gas insulated switchgear. At this time, a connection box 2 for directly connecting the gas insulated switchgear.
The aerial bushing connection box 3 is connected via an insulating spacer 4. As shown in FIG. 2, the insulating spacer 4 has fixed contacts 11 and 12 mounted on a bowl-shaped molded insulator 10. The fixed contact 11 is connected to a lead 5 from the transformer main body, and the fixed contact 12 is connected to the air bushing 7 by a lead 6. When switching from the air bushing mounting type to the gas insulated switchgear direct connection type, the insulation oil in the air bushing connection box 3 is drained, and the lead connecting the insulating spacer 4 and the air bushing 7 is connected. Remove 6. afterwards,
As shown in FIGS. 1 (B) and 1 (C), the connection box 3 for the air bushing is removed, and a gas insulated switchgear 8 is directly connected to the connection box.
By joining with 2, the operation is completed, and the switching to the oil-immersed transformer directly connected to the gas insulated switchgear is completed. As described above, according to the present invention, it is possible to simplify the work of treating the insulating oil when switching the connection from the air bushing type to the gas insulated switchgear, and to perform the connection after the switching. The space of the unit can be made the same size as the dedicated transformer directly connected to the gas insulated switchgear, so that space can be saved.
【図面の簡単な説明】
【図１】本発明の油入変圧器の端子装置の実施の形態例
を示し、（Ａ）は油入変圧器に気中ブッシングを取り付
けた外観図、（Ｂ）は気中ブッシング用接続箱を切り離
した状態の外観図、（Ｃ）は油入変圧器とガス絶縁開閉
装置を直結した外観図である。
【図２】本発明に用いられる絶縁スペーサーの一例を示
し、（Ａ）は断面図、（Ｂ）は正面図である。
【図３】従来の油入変圧器の端子装置の一例を示し、
（Ａ）は油入変圧器に気中ブッシングを取り付けた外観
図、（Ｂ）は油入変圧器にガス絶縁開閉装置を直結した
外観図である。
【符号の説明】
１ 油入変圧器
１ａ タンク
２ ガス絶縁開閉装置直結用接続箱
３ 気中ブッシング用接続箱
４ 絶縁スペーサー
５、６、６ａ リード
７ 気中ブッシング
８ ガス絶縁開閉装置
９、９ａ めくら蓋
１０ モールド製絶縁物
１１、１２ 固定接触子BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of a terminal device for an oil-immersed transformer according to the present invention, (A) is an external view in which an airborne bushing is attached to the oil-immersed transformer, (B) FIG. 3 is an external view of the state in which the aerial bushing connection box is separated, and FIG. 2C is an external view in which the oil-filled transformer and the gas-insulated switchgear are directly connected. FIG. 2 shows an example of an insulating spacer used in the present invention, wherein (A) is a cross-sectional view and (B) is a front view. FIG. 3 shows an example of a conventional terminal device of an oil-immersed transformer,
(A) is an external view in which an aerial bushing is attached to an oil-immersed transformer, and (B) is an external view in which a gas-insulated switchgear is directly connected to the oil-immersed transformer. [Description of Signs] 1 Oil-filled transformer 1a Tank 2 Connection box for direct connection of gas insulated switchgear 3 Connection box for aerial bushing 4 Insulating spacers 5, 6, 6a Lead 7 Aerial bushing 8 Gas insulated switchgear 9, 9a Lid 10 Molded insulator 11, 12 Fixed contact
Claims (1)
入変圧器のタンク側壁に前記タンク内部と連通したガス
絶縁開閉装置直結用接続箱を突設させ、その先に絶縁ス
ペーサーを介して気中ブッシング用接続箱を接合できる
構造とすることにより、前記気中ブッシング用接続箱を
取り外すだけでガス絶縁開閉装置を直結可能にしたこと
を特徴とする油入変圧器の端子装置。(57) [Claim 1] In a terminal device of an oil-filled transformer, a connection box for directly connecting a gas insulated switchgear communicating with the inside of the tank is protruded from a tank side wall of the oil-filled transformer. An oil characterized by having a structure in which an aerial bushing connection box can be joined to an end thereof via an insulating spacer so that the gas insulated switchgear can be directly connected only by removing the aerial bushing connection box. Terminal device for input transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07803199A JP3460223B2 (en) | 1999-03-23 | 1999-03-23 | Terminal device for oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07803199A JP3460223B2 (en) | 1999-03-23 | 1999-03-23 | Terminal device for oil-immersed transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000277347A JP2000277347A (en) | 2000-10-06 |
| JP3460223B2 true JP3460223B2 (en) | 2003-10-27 |
Family
ID=13650453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07803199A Expired - Fee Related JP3460223B2 (en) | 1999-03-23 | 1999-03-23 | Terminal device for oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3460223B2 (en) |
-
1999
- 1999-03-23 JP JP07803199A patent/JP3460223B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000277347A (en) | 2000-10-06 |
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