JP3011516B2 - Insulated conductors and connections of insulated conductors - Google Patents
Insulated conductors and connections of insulated conductorsInfo
- Publication number
- JP3011516B2 JP3011516B2 JP4006049A JP604992A JP3011516B2 JP 3011516 B2 JP3011516 B2 JP 3011516B2 JP 4006049 A JP4006049 A JP 4006049A JP 604992 A JP604992 A JP 604992A JP 3011516 B2 JP3011516 B2 JP 3011516B2
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- insulating tube
- insulating
- insulated conductor
- insulator
- 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
- Gas-Insulated Switchgears (AREA)
- Cable Accessories (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、金属閉鎖形スイッチギ
ヤなどの内部に配設された絶縁導体及びこの絶縁導体が
接続された絶縁導体の接続部に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated conductor disposed inside a metal-closed switchgear or the like and a connection portion of the insulated conductor to which the insulated conductor is connected.
【０００２】[0002]
【従来の技術】従来の絶縁導体及びこの絶縁導体の接続
部が設けられた金属閉鎖形スイッチギヤの右側面図の一
例を示す図３において、外周を軟鋼板で囲まれた箱体11
の前端には扉11ａが取り付けられ、箱体11の中間部に
は、この箱体11を前後に気密に仕切る仕切り12が縦に設
けられ、この仕切り12の中央部の後面と天井板13の後部
間には、逆Ｌ字形の仕切り14が同じく気密に設けられて
いる。この結果、仕切り12の前方には遮断器室15Ａが形
成され、仕切り12の上半と仕切り14の間には母線室15Ｂ
が、仕切り12の下半の後部にはケーブル室15Ｃがそれぞ
れ形成され、母線室15Ｂとケーブル室15Ｃには、六フッ
化硫黄ガスが封入されている。2. Description of the Related Art FIG. 3 shows an example of a right side view of a conventional metal-closed switchgear provided with a conventional insulated conductor and a connecting portion of the insulated conductor . Box 11
A door 11a is attached to the front end of the box 11, and a partition 12 for vertically sealing the box 11 is provided vertically in the middle of the box 11, and a rear surface of a central portion of the partition 12 and a ceiling plate 13 are provided. An inverted L-shaped partition 14 is similarly airtightly provided between the rear portions. As a result, a circuit breaker room 15A is formed in front of the partition 12, and a busbar room 15B is provided between the upper half of the partition 12 and the partition 14.
But the rear part of the lower half of the partition 12 cable chamber 15C is formed respectively, to the bus chamber 15B and the cable compartment. 15C, sulfur hexafluoride gas is sealed entrance.
【０００３】このうち、遮断器室15Ａには、引出形遮断
器16が、今、接続位置で収納され、この引出形遮断器16
の後部の接続導体の後端は、仕切り12の上下に貫設され
た上部断路部17Ａと下部断路部17Ｂの後述する中心導体
の前端に連結している。断路部17Ａ，17Ｂの前面上部に
は、今、上昇位置のシャッタ18Ａ，18Ｂが上下移動自在
に取り付けられている。母線室15Ｂには、主回路導体と
しての三本の母線２が横に平行に配設され、箱体11に隣
接された図示しない箱体の図示しない母線に接続されて
いる。この母線２の中間部は、断路部17Ａの後述する中
心導体の後端に図４の詳細図に示すように固定されてい
る。[0003] Among them, the circuit breaker chamber 15A, it pull out type circuit breaker 16, now housed in the connection position, the draw-out type circuit breaker 16
The rear end of the rear connection conductor is connected to a front end of a later-described central conductor of an upper disconnecting portion 17A and a lower disconnecting portion 17B penetrating above and below the partition 12. Shutters 18A and 18B, which are now in a raised position, are attached to the upper front surfaces of the disconnecting portions 17A and 17B so as to be vertically movable. In the bus bar 15B, the main circuit conductor
And bus 2 three of It is disposed parallel to the horizontal, is connected to a bus (not shown) of the box (not shown) which is adjacent to the box body 11. The intermediate portion of the bus bar 2 is fixed to a rear end of a later-described central conductor of the disconnecting portion 17A as shown in a detailed view of FIG.
【０００４】図４（ａ）は、図３で示した断路部17Ａの
Ａ−Ａ断面拡大詳細図（但し、紙面の配置の制約上、反
時計方向に90°方向を変えて示している。）、図４
（ｂ）は図４（ａ）のＣ−Ｃ断面図である。図４
（ａ），（ｂ）において、断路部17Ａの接続導体となる
中心導体１は、図４（ｂ）に示すように後端の端子部が
断面半円状の溝が水平に形成された樋状になっていて、
外周にはエポキシ樹脂の絶縁層３が注型成形で形成さ
れ、この絶縁層３の後端には、Ｕ字状の遮蔽部７が形成
されている。中心導体１の後端には、銅材で製作された
樋状の金具６がボルト９で後方から締め付けられ、この
金具６と中心導体１の樋状の溝部の間には、母線２の端
部が挿入され、上述したボルト９の締付で、中心導体１
に押圧されている。母線２には、図４（ａ）で示すよう
に、エポキシ樹脂で成形された絶縁管４があらかじめ挿
入され、この絶縁管４の端部は、遮蔽部７の端部と重な
っている。したがって、遮蔽部７の底部７ａとの間にわ
ずかな間隙が形成されている。FIG . 4A shows the disconnecting portion 17A shown in FIG.
AA cross-sectional enlarged detailed view (However, due to restrictions on the layout of the paper,
It is shown turning 90 ° clockwise. ), FIG.
FIG. 5B is a cross-sectional view taken along the line CC of FIG. FIG.
4 (a) and 4 (b) , the center conductor 1 serving as a connection conductor of the disconnecting portion 17A has a rear terminal portion as shown in FIG. 4 (b).
Semicircular cross section of the groove is not leveled-formed trough-shaped,
An epoxy resin insulating layer 3 is formed on the outer periphery by casting, and a U-shaped shielding portion 7 is formed at the rear end of the insulating layer 3. At the rear end of the center conductor 1, a gutter-shaped fitting 6 made of a copper material is tightened from behind by a bolt 9, and between the fitting 6 and the gutter-shaped groove of the center conductor 1, the end of the bus bar 2 Part is inserted, and the center conductor 1 is tightened with the bolt 9 described above.
Is pressed. As shown in FIG.
Then, an insulating tube 4 formed of an epoxy resin is inserted in advance, and the end of the insulating tube 4 overlaps the end of the shielding portion 7. Therefore, a slight gap is formed between the shielding portion 7 and the bottom portion 7a.
【０００５】再び、図３において、箱体11の床面には巻
線形の変流器20Ａが固定され、母線室15Ｂの下面の後端
にも同じ変流器20Ｂが固定されている。ケーブル室15Ｃ
の後部には、箱体11の設置床から立ち上げられたケーブ
ルの端部がケーブル支え23で支えられている。ケーブル
端のケーブルヘッド21の上端に接続された図示しない圧
縮端子の上端には、導体22Ｂの後端が接続され、この導
体22Ｂの前端は変流器20Ｂの後部端子に接続され、この
変流器20Ｂの前部端子は導体22Ａで変流器20Ａの後部端
子に接続され、この変流器20Ａの前端端子は断路部17Ｂ
の中心導体の後端に接続されている。Referring again to FIG. 3, a winding type current transformer 20A is fixed to the floor of the box 11, and the same current transformer 20B is also fixed to the rear end of the lower surface of the busbar chamber 15B. Cable room 15C
At the rear part, the end of the cable raised from the installation floor of the box 11 is supported by a cable support 23. The rear end of the conductor 22B is connected to the upper end of a compression terminal (not shown) connected to the upper end of the cable head 21 at the cable end. The front end of the conductor 22B is connected to the rear terminal of the current transformer 20B. The front terminal of the current transformer 20B is connected to the rear terminal of the current transformer 20A by a conductor 22A, and the front end terminal of the current transformer 20A is connected to the disconnecting section 17B.
Is connected to the rear end of the center conductor.
【０００６】このように構成された断路部17Ａ，17Ｂの
後端と、この後端に接続される母線２，絶縁管４の端部
で構成される絶縁導体の接続部においては、耐電圧特性
上最も弱点部となる各相の金具６を締め付けるボルト９
の相間の絶縁は、遮蔽部７と絶縁管４で対応され、中心
導体１の後端の露出部と対接地間の沿面絶縁は、遮蔽部
７の底面７ａで強化されている。[0006] In the connecting portion of the insulated conductor formed by the rear ends of the disconnecting portions 17A and 17B and the ends of the busbar 2 and the insulating tube 4 connected to the rear ends, the endurance is as follows. Bolts 9 for fastening metal fittings 6 of each phase, which is the weakest point in voltage characteristics
Are shielded by the shield part 7 and the insulating tube 4, and the creeping insulation between the exposed part at the rear end of the center conductor 1 and the ground is reinforced by the bottom surface 7 a of the shield part 7.
【０００７】[0007]
【発明が解決しようとする課題】ところが、このように
構成された絶縁導体の接続部においては、上述したよう
に、各相間の耐電圧特性は遮蔽部７と絶縁管４で強化さ
れ、対接地間の耐電圧特性も底部７ａで対応している
が、図４（ａ）で示す底部７ｂと絶縁管４の間に形成さ
れたわずかな間隙が弱点部となって、もし、雷サージ電
圧が侵入したときには、図４（ａ）の線Ｂで示すよう
に、中心導体１の後部の角部から仕切板12にせん絡する
おそれがある。３相の断路部17Ａのうち、第１相と第３
相の断路部は、図３に示すように、中間部から上下に折
れ曲がっていて、３本の母線の相間距離が長くなるよう
に考慮されているために仕切板12との距離が近くなるの
で、とくに弱点部となる。However, in the connection portion of the insulated conductor configured as described above, the withstand voltage characteristic between the phases is strengthened by the shield portion 7 and the insulating tube 4 as described above, and the connection to the ground is made. The withstand voltage characteristics between the bottom portions 7a also correspond to each other, but a slight gap formed between the bottom portion 7b and the insulating tube 4 shown in FIG. When penetrating, there is a possibility that, as shown by the line B in FIG. Of the three-phase disconnecting portions 17A, the first phase and the third phase
As shown in FIG. 3, the disconnection portion of the phase is bent up and down from the middle portion, and since the distance between the three buses is considered to be long, the distance between the phase disconnection portion and the partition plate 12 becomes short. , Especially weak points.
【０００８】そのため、もし、遮蔽部７の横方向（すな
わち、母線２の軸方向）を長くして、耐電圧特性を上げ
る方法も考えられるが、絶縁層３を注型成形で形成する
ための型が大型となる割には効果は少ない。また、仕切
板12から後方に突き出た中心導体１と絶縁層３の長さを
増やす方法も考えられるが、すると、その後方の仕切り
14との対接地耐電圧値が低下するので、母線室15Ｂの奥
行きが増え、箱体11の奥行きも深くなって設置床面積が
増える。For this reason, if the shielding portion 7 is lengthened in the lateral direction (that is, the axial direction of the busbar 2) to improve the withstand voltage characteristic, a method for improving the withstand voltage characteristic is considered. The effect is small for large molds. It is also conceivable to increase the length of the central conductor 1 and the insulating layer 3 protruding rearward from the partition plate 12, but the rear partition
Since the withstand voltage with respect to the ground 14 decreases, the depth of the bus bar room 15B increases, and the depth of the box body 11 increases, thereby increasing the installation floor area.
【０００９】一方、絶縁管４は、箱体11の間口幅が広く
なって母線２も長くなると、それに伴って長くなるの
で、製作するときには芯金が長くなって成形後の引き抜
きが困難になるだけでなく、組み立てるときには、箱体
11の側面に広い幅の作業スペースが要る。そのため、短
い絶縁管４を複数本挿入する方法も考えられるが、する
と、各絶縁管４の突き合せ部が対相間及び対地間の絶縁
の弱点となる。On the other hand, if the width of the opening of the box body 11 is widened and the bus bar 2 is also long, the length of the insulating tube 4 is increased accordingly. Not only when assembling,
A wide working space is required on 11 sides. For this reason, a method of inserting a plurality of short insulating tubes 4 is also conceivable, but in this case, the butted portion of each insulating tube 4 becomes a weak point of insulation between the phases and the ground.
【００１０】そこで、第１の発明の目的は、電気機器や
箱体の外形を増やすことなく、耐電圧特性を上げること
のできる絶縁導体の接続部を得ることであり、第２の発
明の目的は、製造容易な絶縁導体を得ることである。Therefore, an object of the first invention is to obtain a connection portion of an insulated conductor capable of improving a withstand voltage characteristic without increasing the outer shape of an electric device or a box, and an object of the second invention. Is to obtain an insulated conductor which is easy to manufacture.
【００１１】[0011]
【課題を解決するための手段】第１の発明は、絶縁管で
遮蔽され高電圧が印加される主回路導体が、断面Ｕ字状
の絶縁体で遮蔽された接続導体の端子部に、絶縁管の端
部を絶縁体に遊嵌して接続された絶縁導体の接続部にお
いて、絶縁管の端部と絶縁体の内面に形成された間隙の
少なくとも側面と底部に、シリコーンゲルを挿着したこ
とを特徴とする。また、第２の発明は、複数の絶縁管で
遮蔽され高電圧が印加された絶縁導体において、絶縁管
の雄雌遊嵌部にシリコーンゲルを挿着してなる絶縁導体
である。According to a first aspect of the present invention, a main circuit conductor which is shielded by an insulating tube and to which a high voltage is applied is connected to a terminal portion of the connection conductor which is shielded by an insulator having a U-shaped cross section. At the connecting portion of the insulated conductor, which is connected by loosely fitting the end of the tube to the insulator, a silicone gel is attached to at least the side and the bottom of the gap formed between the end of the insulating tube and the inner surface of the insulator. It is characterized by having done. According to a second aspect of the present invention, there is provided an insulated conductor shielded by a plurality of insulating tubes to which a high voltage is applied, wherein silicone gel is inserted into the male and female loose fitting portions of the insulating tube.
【００１２】[0012]
【作用】第１の発明においては、端子部と接地電位間の
絶縁管と絶縁体で形成された間隙は、シリコーンゲルで
気密に封止されることとなる。また、第２の発明におい
ては、絶縁導体は、外周に遊嵌された絶縁管で対接地間
や対異相間に対して絶縁管の接続部においても、気密に
遮蔽することとなる。In the first aspect of the present invention, the gap between the terminal and the ground potential formed by the insulating tube and the insulator is hermetically sealed with silicone gel. Further, in the second invention, the insulated conductor is airtightly shielded even at the connection portion of the insulated tube between the ground and the out-of-phase by the insulated tube loosely fitted on the outer periphery.
【００１３】[0013]
【実施例】以下、第１の発明の一実施例を図面を参照し
て説明する。図１は、第１の発明の絶縁導体の接続部を
示す断面図で、図４（ａ）及び図４（ｂ）にそれぞれに
対応する図である。なお、図４（ａ）及び図４（ｂ）と
同一部分には、同符号を付して説明を省略する。An embodiment of the first invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a connection portion of an insulated conductor of the first invention, and corresponds to FIGS. 4A and 4B, respectively. 4 (a) and 4 (b) are denoted by the same reference numerals and description thereof is omitted.
【００１４】図１において、母線２の外側に遊嵌された
エポキシ樹脂の絶縁筒４の端部と遮蔽部７の端部に形成
された隙間は、あらかじめ絶縁筒４の端部に巻きつけら
れ絶縁筒４の外周と遮蔽部７の内面に粘着したシリコー
ンゲルのテープ５で封止されている。このテープ５は、
シリコーンゲルの片面に張りつけられたテープを剥しな
がら絶縁筒４に巻き付けられ、巻き付け半径は、一対の
遮蔽部７で形成されたＵ字状の溝の底部の半円部の半径
とほぼ同一寸法に巻き付けられている。したがって、図
１（ｂ）に示すよに、遮蔽部７のＵ形溝の中間部より先
端は、テープ５との間にわずかな隙間が残されている。In FIG. 1, the gap formed at the end of the insulating tube 4 made of epoxy resin loosely fitted to the outside of the busbar 2 and the end of the shielding portion 7 is previously wound around the end of the insulating tube 4. The outer periphery of the insulating tube 4 and the inner surface of the shielding portion 7 are sealed with a silicone gel tape 5 adhered. This tape 5
The silicone gel is wound around the insulating cylinder 4 while peeling off the tape stuck to one side thereof, and the winding radius is approximately the same as the radius of the semicircle at the bottom of the U-shaped groove formed by the pair of shielding portions 7. It is wound. Therefore, as shown in FIG. 1B, a slight gap is left between the tape 5 and the front end of the U-shaped groove of the shielding portion 7 from the middle.
【００１５】このように構成された絶縁導体の接続部に
おいては、従来の図４（ａ）で示す底部７ｂと絶縁管４
の表面の間隙をゲル状のシリコーンゲルで完全に密封す
ることができるので、対接地耐電圧値や対相間の耐電圧
値を上げることができる。なお、上記実施例において、
シリコーンゲルのテープ５は、絶縁管４の外周に巻き付
けた例で説明したが、遮蔽部７の開口部側は残して、側
面と底部７ａ側だけにしてもよい。[0015] In the connecting portion of the thus constituted insulated conductor, a bottom portion 7b and the insulating tube 4 shown in a conventional FIGS. 4 (a)
Can be completely sealed with a gel-like silicone gel, so that the withstand voltage to ground and the withstand voltage between phases can be increased. In the above embodiment,
Tape 5 silicone gel has been described in example wound around the outer periphery of the insulating tube 4, leaving the opening side of the shielding portion 7 may be only the side and bottom 7a side.
【００１６】次に、図２は、第２の発明の絶縁導体を示
す断面図である。図２において、母線２には、絶縁管８
Ａと絶縁体８Ｂがそれぞれ遊嵌されている。このうち、
絶縁管８Ａには、絶縁管８Ｂとの嵌合部に、凸字状に形
成された雄形嵌合部８ａが形成されている。一方、絶縁
管８Ｂには、絶縁管８Ａとの嵌合部に断面Ｕ形の雌形嵌
合部８ｂが形成され、雄形嵌合部８ａの外周には、あら
かじめシリコーンゲルのテープ５が巻き付けられ、この
結果、雄形嵌合部４ａの外周と雌形嵌合部８ｂの内周は
気密に封止されている。この場合には、絶縁管８Ａ，８
Ｂが短くなるので、製作や組立が容易になる利点があ
る。なお、上記実施例においては、絶縁ガスが封入され
た金属閉鎖形スイッチギヤに設けられたときで説明した
が、絶縁ガスのないときでも同様に適用てきる。Next, FIG. 2 is a sectional view showing an insulated conductor of the second invention. In FIG. 2, an insulating tube 8 is
A and the insulator 8B are loosely fitted. this house,
In the insulating tube 8A, a male fitting portion 8a formed in a convex shape is formed at a fitting portion with the insulating tube 8B. On the other hand, in the insulating tube 8B, a female fitting portion 8b having a U-shaped cross section is formed at a fitting portion with the insulating tube 8A, and a tape 5 of silicone gel is wound around the male fitting portion 8a in advance. As a result, the outer periphery of the male fitting portion 4a and the inner periphery of the female fitting portion 8b are hermetically sealed. In this case, the insulating tubes 8A, 8
Since B is shortened, there is an advantage that manufacture and assembly are facilitated. In the above embodiment, the case where the insulating gas is provided in the metal-closed switchgear in which the insulating gas is sealed has been described.
【００１７】[0017]
【発明の効果】以上、第１の発明によれば、絶縁管で遮
蔽され高電圧が印加される主回路導体が、断面Ｕ字状の
絶縁体で遮蔽された接続導体の端子部に、絶縁管の端部
を絶縁体に遊嵌して接続された絶縁導体の接続部におい
て、絶縁管の端部と絶縁体の内面に形成された間隙の少
なくとも側面と底部に、シリコーンゲルを挿着すること
で、端子部と接地電位間の絶縁管と絶縁体で形成された
間隙をシリコーンゲルで密封して対接地電位間の耐電圧
特性を上げたので、電気機器や箱体の外形を増やすこと
なく、耐電圧特性を上げることのできる絶縁導体の接続
部を得ることができる。As described above, according to the first aspect of the present invention, the main circuit conductor shielded by the insulating tube and to which a high voltage is applied is connected to the terminal portion of the connection conductor shielded by the insulator having a U-shaped cross section. At the connecting portion of the insulated conductor, which is connected by loosely fitting the end of the tube to the insulator, a silicone gel is attached to at least the side and the bottom of the gap formed between the end of the insulating tube and the inner surface of the insulator. doing, since the gap formed by the insulating tube and the insulator between a terminal portion ground potential raising the withstand voltage characteristics between sealed and the isolation potential with silicone gel to increase the external shape of the electric equipment and the box A connection portion of an insulated conductor that can improve the withstand voltage characteristics can be obtained without the need.
【００１８】また、第２の発明によれば、複数の絶縁管
で遮蔽され高電圧が印加された絶縁導体において、絶縁
管の雄雌遊嵌部にシリコーンゲルを挿着することで、外
周に遊嵌された複数の絶縁菅の接続部においても、気密
に遮蔽して対接地間や対異相間の耐電圧特性を維持した
ので、製造や組立が容易な絶縁導体を得ることができ
る。According to the second aspect of the present invention, in the insulated conductor shielded by the plurality of insulating tubes and applied with a high voltage, the silicone gel is inserted into the male and female loose fitting portions of the insulating tube, so that the outer periphery thereof is formed. Even in the connection portion of the plurality of loosely fitted insulating tubes, since the withstand voltage characteristics between the ground and the different phases are maintained in an airtight manner, an insulated conductor that can be easily manufactured and assembled can be obtained.
【図１】第１の発明の絶縁導体の接続部の一実施例を示
す断面図。FIG. 1 is a sectional view showing an embodiment of a connecting portion of an insulated conductor of the first invention.
【図２】第２の発明の絶縁導体の一実施例を示す断面
図。FIG. 2 is a sectional view showing an embodiment of the insulated conductor of the second invention.
【図３】従来の絶縁導体及び絶縁導体の接続部が組み込
まれた金属閉鎖形スイッチギヤを示す右側面図。FIG. 3 is a right side view showing a conventional metal-closed switchgear in which a conventional insulated conductor and a connecting portion of the insulated conductor are incorporated.
【図４】従来の絶縁導体の接続部を示す断面図で、
（ａ）は図３のＡ−Ａ断面拡大図、（ｂ）は（ａ）のＣ
−Ｃ断面図。FIG. 4 is a sectional view showing a connection portion of a conventional insulated conductor;
(A) is A-A sectional enlarged view of FIG. 3, C of (b) is (a)
-C sectional view.
１…中心導体、２…母線、３…絶縁層、４，８Ａ，８Ｂ
…絶縁管、５…シリコーンゲルのテープ、６…金具、７
…遮蔽部。DESCRIPTION OF SYMBOLS 1 ... Center conductor, 2 ... Bus, 3 ... Insulating layer, 4, 8A, 8B
... insulating tube, 5 ... silicone gel tape, 6 ... metal fittings, 7
... Shielding part.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 和久 恵二 東京都港区芝浦一丁目１番１号 株式会 社東芝 本社事務所内 (72)発明者 永田 恭文 東京都港区芝浦一丁目１番１号 株式会 社東芝 本社事務所内 (56)参考文献 特開 平４−188577（ＪＰ，Ａ) 特開 平２−261013（ＪＰ，Ａ) 特開 昭61−185002（ＪＰ，Ａ) 特開 昭61−223394（ＪＰ，Ａ) 特開 昭58−195413（ＪＰ，Ａ) 特開 昭58−159615（ＪＰ，Ａ) 実開 昭60−127906（ＪＰ，Ｕ) 実開 昭50−8787（ＪＰ，Ｕ) 特公 昭50−14756（ＪＰ，Ｂ１) 実公 昭38−1457（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.7，ＤＢ名) H02G 15/00 - 15/196 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Keiji Waku 1-1-1 Shibaura, Minato-ku, Tokyo Inside the head office of Toshiba Corporation (72) Inventor Yasufumi Nagata 1-1-1 Shibaura, Minato-ku, Tokyo No. In the head office of Toshiba Corporation (56) References JP-A-4-188577 (JP, A) JP-A-2-261010 (JP, A) JP-A-61-185002 (JP, A) JP-A-61 -223394 (JP, A) JP-A-58-195413 (JP, A) JP-A-58-159615 (JP, A) Japanese Utility Model Application No. 60-127906 (JP, U) Japanese Utility Model Application No. 50-8787 (JP, U) Japanese Patent Publication No. 50-14756 (JP, B1) Japanese Examined Patent Publication No. 38-1457 (JP, Y1) (58) Fields investigated (Int. Cl. 7 , DB name) H02G 15/00-15/196
Claims (2)
回路導体が、断面Ｕ字状の絶縁体で遮蔽された接続導体
の端子部に、前記絶縁管の端部を前記絶縁体に遊嵌して
接続された絶縁導体の接続部において、前記絶縁管の端
部と前記絶縁体の内面に形成された間隙の少なくとも側
面と底部に、シリコーンゲルを挿着したことを特徴とす
る絶縁導体の接続部。1. A connection conductor shielded by an insulating pipe and having a main circuit conductor to which a high voltage is applied, shielded by an insulator having a U-shaped cross section.
In a terminal portion of the insulating conductor, the end of the insulating tube is loosely fitted to the insulator and connected to at least one side of a gap formed on the inner surface of the insulator with the end of the insulating tube.
A connection portion of an insulated conductor, wherein a silicone gel is inserted into a surface and a bottom portion.
れた絶縁導体において、前記絶縁管の雄雌遊嵌部にシリ
コーンゲルを挿着してなる絶縁導体。2. An insulated conductor which is shielded by a plurality of insulating tubes and to which a high voltage is applied, wherein a silicone gel is inserted into male and female loose fitting portions of said insulating tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4006049A JP3011516B2 (en) | 1992-01-17 | 1992-01-17 | Insulated conductors and connections of insulated conductors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4006049A JP3011516B2 (en) | 1992-01-17 | 1992-01-17 | Insulated conductors and connections of insulated conductors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05199641A JPH05199641A (en) | 1993-08-06 |
| JP3011516B2 true JP3011516B2 (en) | 2000-02-21 |
Family
ID=11627765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4006049A Expired - Fee Related JP3011516B2 (en) | 1992-01-17 | 1992-01-17 | Insulated conductors and connections of insulated conductors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3011516B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5545323B2 (en) * | 2012-06-21 | 2014-07-09 | 三菱電機株式会社 | Switchgear |
-
1992
- 1992-01-17 JP JP4006049A patent/JP3011516B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05199641A (en) | 1993-08-06 |
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