JP3050464B2 - Current transformer for gas insulated switchgear - Google Patents
Current transformer for gas insulated switchgearInfo
- Publication number
- JP3050464B2 JP3050464B2 JP5126153A JP12615393A JP3050464B2 JP 3050464 B2 JP3050464 B2 JP 3050464B2 JP 5126153 A JP5126153 A JP 5126153A JP 12615393 A JP12615393 A JP 12615393A JP 3050464 B2 JP3050464 B2 JP 3050464B2
- Authority
- JP
- Japan
- Prior art keywords
- current transformer
- terminal box
- mounting plate
- transformer coil
- cover
- 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
- Patch Boards (AREA)
- Gas-Insulated Switchgears (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はガス絶縁開閉装置用変流
器に係り、特に密閉容器の外周部に配置した変流器コイ
ルをカバ−で覆って構成したガス絶縁開閉装置用変流器
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a current transformer for a gas insulated switchgear, and more particularly, to a current transformer for a gas insulated switchgear which is formed by covering a current transformer coil arranged on the outer periphery of a closed vessel with a cover. About.
【０００２】[0002]
【従来の技術】一般に、ガス絶縁開閉装置用変流器とし
て、例えば日立製作所製、型番ＯＦＰＴ（Ｂ）５００−
６３Ｌ，ＰＡＲ製品のように遮断器のブッシング取り付
け部に構成したものが知られている。2. Description of the Related Art In general, as a current transformer for a gas insulated switchgear, for example, Model No. OFPT (B) 500- manufactured by Hitachi, Ltd.
There are known 63L, PAR products configured on a bushing mounting portion of a circuit breaker.
【０００３】図３は、この種の変流器を採用した公知の
ガス遮断器を示している。遮断部を収納すると共に絶縁
性ガスを充填した遮断器密閉容器１には、一対の分岐部
が形成されており、この分岐部にブッシング１３を樹立
すると共に、ブッシング１３の中心導体１４を遮断部に
接続し、また分岐部の外周部に変流器１５を構成してい
る。変流器１５の詳細な構成は、要部拡大断面図である
図２に示している。FIG. 3 shows a known gas circuit breaker employing this type of current transformer. A pair of branch portions are formed in the circuit breaker hermetically sealed container 1 that houses the blocking portion and is filled with the insulating gas. A bushing 13 is established in the branch portion, and the center conductor 14 of the bushing 13 is connected to the blocking portion. And a current transformer 15 is formed on the outer peripheral portion of the branch portion. The detailed configuration of the current transformer 15 is shown in FIG. 2 which is an enlarged sectional view of a main part.
【０００４】分岐部である密閉容器１の外周には、所定
距離を隔てて配置した一対のリング状の取付板３，１６
の内周側を溶接し、この取付板３上に変流器コイル２を
配置している。変流器コイル２を保護するために設けた
カバ−４の上端部は、Ｏリングあるいはパッキング等の
シ−ル材１０を介して取付板１６へ図示しないボルトに
よって固定され、またカバ−４の下端部は絶縁パッキン
グ１１によって取付板３から電気的に絶縁すると共に防
水構造に成されている。カバ−４の側方には穴４ａが形
成されており、この穴４ａから変流器コイル２の二次側
配線７ａ，７ｂを導出すると共に、穴４ａを塞ぐように
カバ−４の側方に溶接して取付けた端子箱５内の端子台
６に二次側配線７ａ，７ｂを接続している。端子箱５の
下部には配管８の上端部フランジが連結され、この配管
８内の二次側配線７ｃ，７ｄは一端を端子箱５内の端子
台６を用いて二次側配線７ａ，７ｂと接続し、他端を図
示しないキュ−ビクル等に接続している。端子箱５には
蓋１２が取外し可能に設けられ、この蓋１２を除いて端
子台６における配線接続作業を行うことができる。また
配管８の途中は、密閉容器１の外周に一端部を溶接によ
って固定した支持部材９の他端で支持されている。[0004] A pair of ring-shaped mounting plates 3, 16 arranged at a predetermined distance are provided on the outer periphery of the closed container 1 which is a branch portion.
Are welded, and the current transformer coil 2 is disposed on the mounting plate 3. The upper end of the cover 4 provided to protect the current transformer coil 2 is fixed to a mounting plate 16 via a sealing member 10 such as an O-ring or a packing by bolts (not shown). The lower end is electrically insulated from the mounting plate 3 by the insulating packing 11 and has a waterproof structure. A hole 4a is formed on the side of the cover-4. The secondary wires 7a and 7b of the current transformer coil 2 are led out from the hole 4a, and the side of the cover-4 is closed so as to close the hole 4a. Secondary wires 7a and 7b are connected to a terminal block 6 in a terminal box 5 attached by welding. A lower end of the terminal box 5 is connected to an upper end flange of a pipe 8. Secondary wires 7 c and 7 d in the pipe 8 are connected at one end to secondary wires 7 a and 7 b using a terminal block 6 in the terminal box 5. And the other end is connected to a cubicle or the like (not shown). A lid 12 is provided on the terminal box 5 so as to be detachable, and a wiring connection operation on the terminal block 6 can be performed except for the lid 12. The middle of the pipe 8 is supported by the other end of a support member 9 having one end fixed to the outer periphery of the closed vessel 1 by welding.
【０００５】[0005]
【発明が解決しようとする課題】上述した従来の変流器
は、中心導体１４を流れる電流によって誘導される誘導
電流が変流器コイル２を包囲するワンタ−ン回路、つま
り、密閉容器１……カバ−４……取付板３……密閉容器
１へと流れると、変流器コイル２の二次側に発生する二
次電流が正常に流れなくなるのを防止するため、取付板
３とカバ−４間に絶縁パッキング１１を配置している
が、変流器コイル２を包囲する別のワンタ−ン回路、つ
まり密閉容器１……カバ−４……端子箱５……配管８…
…支持金具９……密閉容器１という回路が構成されてし
まうため、図２に示す配管８の途中Ａ部等に絶縁物を介
在させたり、または配管８を絶縁物製としなければなら
ない。また変流器コイル２，シ−ル材１０および絶縁パ
ッキング１１等を点検したり部品を交換したりする場
合、先ずカバ−４を取り外すが、このためには端子台６
に接続された二次側配線７ａ〜７ｄを取り外さなければ
ならない。しかも二次側配線７ａ〜７ｄを取り外して再
び接続した場合、その接続作業が確実かつ正確に行われ
たか否かの確認試験を実施しなければならず、面倒な作
業となっていた。In the above-described conventional current transformer, the induced current induced by the current flowing through the center conductor 14 is a one-turn circuit surrounding the current transformer coil 2, that is, the closed containers 1. Cover-4 Mounting plate 3 When the current flows into the closed vessel 1, the secondary current generated on the secondary side of the current transformer coil 2 is prevented from flowing normally. The insulating packing 11 is arranged between the power supply terminals 4 and 4, but another one-turn circuit surrounding the current transformer coil 2, that is, a closed container 1, a cover 4, a terminal box 5, a pipe 8, and the like.
... Supporting bracket 9... A circuit called the sealed container 1 is formed, so that an insulator must be interposed in the middle A of the pipe 8 shown in FIG. 2 or the pipe 8 must be made of an insulator. When inspecting the current transformer coil 2, the seal material 10, the insulating packing 11, etc. or replacing parts, first, the cover 4 is removed.
Must be removed. In addition, when the secondary wires 7a to 7d are removed and connected again, a confirmation test must be performed to confirm whether or not the connection work has been performed reliably and accurately, which is a troublesome work.
【０００６】本発明の目的は、変流器コイル等の点検あ
るいは部品の交換作業を容易にしたガス絶縁開閉器用変
流器を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a current transformer for a gas insulated switch which facilitates inspection of a current transformer coil and the like or replacement of parts.
【０００７】[0007]
【課題を解決するための手段】本発明は上述の目的を達
成するため、中心導体を配置した密閉容器の外周部に変
流器コイルを設置し、上記密閉容器に固定した取付板に
上記変流器コイルを支持し、上記取付板との間に絶縁パ
ッキングを配置して上記変流器コイルを包囲したカバ−
を設け、上記変流器コイルの二次側配線間を端子箱内で
接続して成るガス絶縁開閉装置用変流器において、上記
取付板の上記絶縁パッキングよりも上記密閉容器側から
上記二次側配線を導出し、上記絶縁パッキングの反カバ
−側における密閉容器に、上記取付板との間に間隔をあ
けて上記端子箱を設けたことを特徴とする。According to the present invention, in order to achieve the above-mentioned object, a current transformer coil is installed on an outer peripheral portion of an airtight container in which a center conductor is arranged, and the transformer is mounted on a mounting plate fixed to the airtight container. A cover that supports the current transformer coil and arranges an insulating packing between the current transformer coil and the mounting plate to surround the current transformer coil.
In the current transformer for a gas insulated switchgear, wherein the secondary side wiring of the current transformer coil is connected in a terminal box, the secondary side of the mounting plate is closer to the closed container than the insulating packing. derives side wiring, anti birch of the insulating packing - in a closed vessel definitive on the side, Oh spacing between the mounting plate
And the terminal box is provided.
【０００８】[0008]
【作用】本発明のガス絶縁開閉器用変流器は、上述した
ように絶縁パッキングの反カバ−側に端子箱を設けたた
め、変流器コイルを包囲するワンタ−ン回路は全て絶縁
パッキングによって断たれることになり、変流器コイル
の二次側配線を収納した配管を絶縁する必要がなくな
り、またカバ−を取り外して変流器コイル等の点検を行
う場合、カバ−と連結関係を持たない二次側配線や端子
箱を取り外す必要がなく、作業性の向上と、再度二次側
配線を端子箱内で接続する際の配線作業誤りを防止して
信頼性を向上させることができる。しかも、変流器コイ
ルの収納部を構成する取付板との間に間隔をあけた状態
で密閉容器に端子箱を設けたため、上記取付板からの二
次側配線の導出作業や端子箱内での二次側配線間の接続
作業を広いスペースで容易に行なうことができるととも
に、端子箱の大きさが上記取付板の大きさによって制約
を受けることがなく、自由に選定できるので、端子箱内
に例えば二次側配線に接続される二次側保護装置等を設
置することが可能となる。 また、交流送電においては、
三相三線式が標準となっているが、三相分の各変流器コ
イルからの二次側配線を一括して取付板と端子箱との間
から端子箱内に導入して各相の二次側配線間の接続を行
うこともできる。 In the current transformer for a gas insulated switchgear of the present invention, the terminal box is provided on the side opposite to the cover of the insulating packing as described above, so that all the one-turn circuits surrounding the current transformer coil are cut off by the insulating packing. This eliminates the need to insulate the piping that houses the secondary side wiring of the current transformer coil, and has a connection with the cover when removing the cover and checking the current transformer coil etc. There is no need to remove the secondary side wiring and the terminal box, which improves the workability, and prevents the wiring work error when connecting the secondary side wiring in the terminal box again, thereby improving the reliability. Moreover, current transformer carp
With a space between the mounting plate and the
The terminal box was provided in the sealed container at
Derivation work of the secondary wiring and connection between the secondary wiring in the terminal box
Work can be done easily in a large space
The size of the terminal box is limited by the size of the mounting plate
The terminal box can be selected freely without receiving
For example, install a secondary side protection device etc. connected to the secondary side wiring.
Can be placed. In addition, in AC power transmission,
The standard is a three-phase three-wire system.
All the secondary side wiring from the mounting plate and the terminal box
From the terminal box to establish connections between the secondary wiring of each phase.
You can also.
【０００９】[0009]
【実施例】以下、本発明の実施例を図面によって説明す
る。Embodiments of the present invention will be described below with reference to the drawings.
【００１０】図１は本発明の一実施例によるガス絶縁開
閉器用変流器としてガス遮断器のブッシングの下部に構
成した変流器を示している。FIG. 1 shows a current transformer formed below a bushing of a gas circuit breaker as a current transformer for a gas-insulated switch according to an embodiment of the present invention.
【００１１】絶縁性ガスを充填した密閉容器１の外周に
は、所定距離を隔てて一対のリング状の取付板３，１６
の内周側を溶接し、この取付板３上に変流器コイル２を
配置している。変流器コイル２を保護するために設けた
カバ−４の上端部は、Ｏリングあるいはパッキング等の
シ−ル材１０を介して取付板１６へ図示しないボルトに
より固定され、またカバ−４の下端部は絶縁パッキング
１１によって取付板３から電気的に絶縁すると共に防水
構造に成されて支持されている。また取付板３には、絶
縁パッキング１１よりも密閉容器１への溶接側に穴３ａ
が形成されており、この穴３ａから変流器コイル２の二
次側配線７ａ，７ｂを導出している。端子箱５は、取付
板３の下方に間隔をあけて、密閉容器１の外壁に溶接に
よって固定され、導出後の二次側配線７ａ，７ｂは、穴
３ａを塞ぐように取付板３の下方側に取付けた第一配管
８ａを通って端子箱５内の端子台６に接続されている。
この端子箱５の下部には第二配管８ｂの上端部フランジ
が連結され、この第二配管８ｂ内の二次側配線７ｃ，７
ｄは一端が端子箱５内の端子台６において二次側配線７
ａ，７ｂと接続され、他端が図示しないキュ−ビクル等
に接続されている。第二配管８ｂの中間部を支持する場
合は、図示の密閉容器１あるいは図３に示す遮断部を収
納した密閉容器１の本体に溶接した支持部材で行うこと
もできる。また端子箱５には蓋１２が取外し可能に設け
られ、この蓋１２を除いて端子台６における配線接続作
業を行うことができる。A pair of ring-shaped mounting plates 3, 16 are provided on the outer periphery of the closed container 1 filled with the insulating gas at a predetermined distance.
Are welded, and the current transformer coil 2 is disposed on the mounting plate 3. An upper end of the cover-4 provided to protect the current transformer coil 2 is fixed to a mounting plate 16 via a sealing material 10 such as an O-ring or a packing by bolts (not shown). The lower end is electrically insulated from the mounting plate 3 by an insulating packing 11 and is supported in a waterproof structure. In addition, the mounting plate 3 has a hole 3 a on the welding side to the sealed container 1 rather than the insulating packing 11.
Are formed, and the secondary wires 7a and 7b of the current transformer coil 2 are led out from the holes 3a. Terminal box 5 is mounted
For welding to the outer wall of the closed vessel 1 with a space below the plate 3
Therefore, the secondary pipes 7a and 7b which are fixed and led out are connected to the first pipe attached below the mounting plate 3 so as to close the holes 3a.
It is connected to the terminal block 6 in the terminal box 5 through 8a .
The lower part of the terminal box 5 is connected the upper end flange of the second pipe 8 b, the secondary side wiring 7c of the second pipe 8 b, 7
d is one end of the secondary wiring 7 on the terminal block 6 in the terminal box 5.
a, is connected to 7b, the other end queue not shown - is connected to Bikuru like. A place for supporting the middle part of the second pipe 8b
In this case, the closed container 1 shown in the figure or the shut-off part shown in FIG.
What to do with the support member welded to the main body of the enclosed container 1
Can also. Further, the terminal box 5 is provided with a lid 12 which can be removed, and the wiring connection work on the terminal block 6 can be performed except for the lid 12.
【００１２】このような構成のガス絶縁開閉器用変流器
によれば、中心導体１４を流れる電流によって誘導され
る誘導電流が流れる変流器コイル２を包囲するワンタ−
ン回路は形成されない。つまり、密閉容器１……カバ−
４……取付板３……密閉容器１へと流れる回路は、取付
板３とカバ−４間に絶縁パッキング１１を配置すること
によって断たれ、また従来の構成では形成されていた密
閉容器１……カバ−４……端子箱５……配管８……支持
部材９……密閉容器１という回路も、カバ−４と取付板
３及び第一配置８ａとの間に絶縁パッキング１１が配置
されているために断たれ、変流器コイル２の二次側に発
生する二次電流が正常に流れなくなるのを防止すること
ができる。これは端子箱５を絶縁パッキング１１の反カ
バー側の密閉容器１に接続したためである。従って、従
来のように配管８の途中に絶縁物を介在させたり、また
は配管８を絶縁物製とする必要はない。According to the current transformer for a gas insulated switchgear having such a configuration, the water current surrounding the current transformer coil 2 through which the induced current induced by the current flowing through the center conductor 14 flows.
No circuit is formed. In other words, the closed container 1 ... cover
4 Mounting plate 3 The circuit flowing to the sealed container 1 is cut off by disposing the insulating packing 11 between the mounting plate 3 and the cover 4, and the sealed container 1 formed in the conventional configuration is formed. ... Cover-4 ... Terminal box 5 ... Piping 8 ... Support member 9 ... Circuited vessel 1 also has a cover-4 and a mounting plate
It is possible to prevent the secondary current generated on the secondary side of the current transformer coil 2 from flowing abnormally because the insulating packing 11 is disposed between the current transformer 3 and the first arrangement 8a. . This is anti-mosquito insulation packing 11 of the terminal box 5
This is because it was connected to the closed container 1 on the bar side . Therefore, there is no need to interpose an insulator in the middle of the pipe 8 or to make the pipe 8 made of an insulator as in the related art.
【００１３】また変流器コイル２，シ−ル材１０および
絶縁パッキング１１等を点検したり部品を交換したりす
る場合、先ず、取付板１６との連結を行っているボルト
を外してカバ−４を上方へずらすが、このとき従来のよ
うにカバ−４と端子箱５、またカバ−４と二次側配線７
ａ〜７ｄとは直接的な連結関係を有していないため、端
子台６に接続された二次側配線７ａ〜７ｄを取り外すこ
となく作業を行うことができる。従って、この作業後、
従来のように二次側配線７ａ〜７ｄの接続の確認試験を
実施する必要はない。When checking the current transformer coil 2, the seal material 10, the insulating packing 11 and the like, and replacing parts, first, the bolts connected to the mounting plate 16 are removed and the cover is removed. 4 is shifted upward, but at this time, the cover-4 and the terminal box 5, and the cover-4 and the secondary
Since there is no direct connection relationship with the terminals a to 7d, the work can be performed without removing the secondary side wirings 7a to 7d connected to the terminal block 6. Therefore, after this work,
It is not necessary to carry out a test for confirming the connection of the secondary side wirings 7a to 7d as in the related art.
【００１４】[0014]
【００１５】[0015]
【００１６】[0016]
【００１７】尚、上述の各実施例はいずれも遮断器のブ
ッシングの下部に構成した場合について説明したが、他
の部分に配置したガス絶縁開閉器用変流器に適用するこ
とができる。Although each of the above embodiments has been described with reference to the case where the circuit breaker is arranged below the bushing, the present invention can be applied to a current transformer for gas insulated switchgear arranged in another portion.
【００１８】[0018]
【発明の効果】以上説明したように本発明のガス絶縁開
閉器用変流器によれば、変流器コイルの二次側配線を接
続する端子箱は、カバ−と支持板間に配置した絶縁パッ
キングよりも反カバ−側の密閉容器側に設け、変流器コ
イルの二次側配線は取付板の絶縁パッキングよりも密閉
容器側に設けたため、変流器コイル等の点検あるいは部
品の交換作業のためにカバ−を取り外す場合でも、二次
側配線を取り外す必要がなく、また絶縁パッキングと端
子箱の位置関係によって変流器コイルの動作に悪影響を
及ぼすワンタ−ン回路を構成することがないので、端子
箱に連結される配管を途中で絶縁したり絶縁物で製作し
たりする必要もない。しかも、変流器コイルの収納部を
構成する取付板との間に間隔をあけた状態で密閉容器に
端子箱を設けたため、上記取付板からの二次側配線の導
出作業や端子箱内での二次側配線間の接続作業を広いス
ペースで容易に行なうことができるとともに、端子箱の
大きさが上記取付板の大きさによって制約を受けること
がなく、自由に選定できるので、端子箱内に例えば二次
側配線に接続される二次側保護装置等を設置することが
可能となる。 また、交流送電においては、三相三線式が
標準となっているが、三相分の各変流器コイルからの二
次側配線を一括して取付板と端子箱との間から端子箱内
に導入して各相の二次側配線間の接続を行うこともでき
る。 As described above, according to the current transformer for a gas insulated switchgear of the present invention, the terminal box for connecting the secondary side wiring of the current transformer coil has the insulation disposed between the cover and the support plate. Inspect the current transformer coil and replace parts because the secondary side wiring of the current transformer coil is provided on the closed container side rather than the insulating packing of the mounting plate. For this reason, even if the cover is removed, there is no need to remove the secondary wiring, and there is no need to configure a one-turn circuit that adversely affects the operation of the current transformer coil due to the positional relationship between the insulating packing and the terminal box. Therefore, there is no need to insulate or manufacture a pipe connected to the terminal box on the way. In addition, the current transformer coil storage
In a sealed container with a space between the mounting plate
Since the terminal box is provided, the secondary wiring from the mounting plate
Installation work and the connection work between the secondary side wiring in the terminal box can be performed over a wide area.
It can be done easily at a pace and the terminal box
The size is restricted by the size of the mounting plate
Can be selected freely, so that, for example, secondary
It is possible to install a secondary side protection device etc. connected to the side wiring
It becomes possible. For AC power transmission, three-phase three-wire
Standard, but two phases from each current transformer coil
Collectively connect the secondary-side wiring from the space between the mounting plate and the terminal box inside the terminal box.
To connect the secondary wiring of each phase.
You.
【図１】本発明の一実施例によるガス絶縁開閉器用変流
器の縦断面図である。FIG. 1 is a longitudinal sectional view of a current transformer for a gas insulated switch according to one embodiment of the present invention.
【図２】従来のガス絶縁開閉器用変流器の縦断面図であ
る。FIG. 2 is a longitudinal sectional view of a conventional current transformer for a gas-insulated switch.
【図３】ガス絶縁開閉器用変流器を有したガス遮断器の
縦断面図である。FIG. 3 is a longitudinal sectional view of a gas circuit breaker having a current transformer for a gas insulated switch.
１ 密閉容器 ２ 変流器コイル ３ 取付板 ４ カバ− ５ 端子箱 ６ 端子台 ７ａ〜７ｄ 二次側配線 ８ａ，８ｂ 配管 １１ 絶縁パッキング １４ 中心導体DESCRIPTION OF SYMBOLS 1 Closed container 2 Current transformer coil 3 Mounting plate 4 Cover 5 Terminal box 6 Terminal block 7a-7d Secondary wiring 8a, 8b piping 11 Insulation packing 14 Center conductor
フロントページの続き (72)発明者 越田 喜一 茨城県日立市幸町三丁目２番２号 株式 会社 日立エンジニアリングサービス内 (72)発明者 鈴木 武久 茨城県日立市幸町三丁目２番２号 株式 会社 日立エンジニアリングサービス内 (56)参考文献 実公 昭57−17708（ＪＰ，Ｙ２) 実公 平１−13402（ＪＰ，Ｙ２) (58)調査した分野(Int.Cl.7，ＤＢ名) H02B 13/02 - 13/075 H02B 1/20 Continuing from the front page (72) Inventor Kiichi Koshida 3-2-2, Sachimachi, Hitachi, Ibaraki Pref. Hitachi Engineering Services (72) Inventor Takehisa Suzuki 3-2-2, Sachimachi, Hitachi, Ibaraki Co., Ltd. Within Hitachi Engineering Services (56) References Jiko 57-17708 (JP, Y2) Jiko 1-13402 (JP, Y2) (58) Fields investigated (Int. Cl. 7 , DB name) H02B 13 / 02-13/075 H02B 1/20
Claims (1)
変流器コイルを設置し、上記密閉容器に固定した取付板
に上記変流器コイルを支持し、上記取付板との間に絶縁
パッキングを配置して上記変流器コイルを包囲したカバ
−を設け、上記変流器コイルの二次側配線間を端子箱内
で接続して成るガス絶縁開閉装置用変流器において、上
記取付板の上記絶縁パッキングよりも上記密閉容器側か
ら上記二次側配線を導出し、上記絶縁パッキングの反カ
バ−側における密閉容器に、上記取付板との間に間隔を
あけて、上記端子箱を設けたことを特徴とするガス絶縁
開閉装置用変流器。A current transformer coil is installed on an outer peripheral portion of a sealed container having a center conductor disposed therein, and the current transformer coil is supported on a mounting plate fixed to the closed container, and is insulated from the mounting plate. In the current transformer for a gas insulated switchgear, which is provided with a cover surrounding the current transformer coil by arranging a packing and connecting between secondary wires of the current transformer coil in a terminal box. than the insulating packing plate to derive the secondary-side wiring from the closed container side, anti cover the insulating packing - in a closed vessel definitive on the side, the spacing between the mounting plate
A current transformer for a gas insulated switchgear, characterized by comprising the terminal box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5126153A JP3050464B2 (en) | 1993-05-27 | 1993-05-27 | Current transformer for gas insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5126153A JP3050464B2 (en) | 1993-05-27 | 1993-05-27 | Current transformer for gas insulated switchgear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06339207A JPH06339207A (en) | 1994-12-06 |
| JP3050464B2 true JP3050464B2 (en) | 2000-06-12 |
Family
ID=14927993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5126153A Expired - Fee Related JP3050464B2 (en) | 1993-05-27 | 1993-05-27 | Current transformer for gas insulated switchgear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3050464B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013085414A (en) * | 2011-10-12 | 2013-05-09 | Meiden T&D Co Ltd | Tank type vacuum interrupter |
-
1993
- 1993-05-27 JP JP5126153A patent/JP3050464B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06339207A (en) | 1994-12-06 |
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