JPH0984245A - Connecting part of cable terminal - Google Patents
Connecting part of cable terminalInfo
- Publication number
- JPH0984245A JPH0984245A JP7260859A JP26085995A JPH0984245A JP H0984245 A JPH0984245 A JP H0984245A JP 7260859 A JP7260859 A JP 7260859A JP 26085995 A JP26085995 A JP 26085995A JP H0984245 A JPH0984245 A JP H0984245A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- terminal
- power
- cable line
- impression
- 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
- 239000004020 conductor Substances 0.000 claims abstract description 17
- 230000001154 acute effect Effects 0.000 claims abstract description 9
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical group [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 4
- 239000012212 insulator Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 241000722921 Tulipa gesneriana Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Cable Accessories (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、機器の壁面を貫通
するような多相給電用の複数のブッシングに対しケーブ
ル線路を接続する構成のケーブル終端接続部に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable terminating connection portion configured to connect a cable line to a plurality of bushings for multi-phase power feeding that penetrate a wall surface of a device.
【０００２】[0002]
【従来の技術】ＧＩＳ（ガス絶縁遮断器）のような密閉
型の高電圧機器とケーブル線路とを接続する部分には、
ケーブル線路の終端を受け入れるブッシングが設けられ
る。このケーブル線路は、ブッシングとの接続部分も含
めて適時直流耐圧試験等の電気試験が要求される。そこ
で、このブッシングを介してケーブル線路に試験用の直
流高電圧を課電するために、ブッシングに課電用ケーブ
ルの接続端子を設けたものがある（特開平５−１９１９
１６号公報）。2. Description of the Related Art A portion for connecting a sealed high voltage device such as a GIS (gas insulated circuit breaker) to a cable line,
A bushing is provided that receives the end of the cable line. This cable line is required to be subjected to an electrical test such as a DC withstand voltage test in a timely manner including the connection with the bushing. Therefore, in order to apply a DC high voltage for a test to the cable line via the bushing, there is a bushing provided with a connection terminal of the power application cable (JP-A-5-1919).
16 publication).
【０００３】図２には、その概略説明図を示す。この図
は、機器の壁面１にブッシング２を取り付けた状態の一
部を省略した縦断面図である。このブッシング２には課
電端子３とケーブル接続端子４とが設けられている。課
電端子３には直流高電圧を印加するための課電用ケーブ
ル５が接続される。ケーブル接続端子４にはケーブル線
路６が接続される。通常の使用状態ではこのケーブル線
路６と機器の内部回路とが電気接続される。そして、ケ
ーブル線路６に対し直流高電圧を加えて試験を行う場
合、課電用ケーブル５とケーブル線路６との電気接続が
行われる。FIG. 2 shows a schematic explanatory view thereof. This drawing is a vertical cross-sectional view in which a part of the state where the bushing 2 is attached to the wall surface 1 of the device is omitted. The bushing 2 is provided with a charging terminal 3 and a cable connection terminal 4. A power-supply cable 5 for applying a high DC voltage is connected to the power-supply terminal 3. A cable line 6 is connected to the cable connection terminal 4. In a normal use state, the cable line 6 and the internal circuit of the device are electrically connected. Then, when a test is performed by applying a direct current high voltage to the cable line 6, the power application cable 5 and the cable line 6 are electrically connected.
【０００４】なお、この直流高電圧が機器の内部にまで
加わらないように、このブッシング２の内部構成は次の
ようになっている。即ち、機器の内部回路には導棒７が
接続される。また、課電用ケーブル５やケーブル線路６
の導体には内部電極８が電気接続される。そして、導棒
７と内部電極８との間は切り離されており、通常の使用
状態では接続用導体１０が、導棒７と内部電極８との間
に設けられた中空部９に装着される。直流高電圧を印加
する場合にはこの接続用導体１０を取り除き、絶縁栓１
１を嵌め込む。こうして、機器の内部回路と課電用ケー
ブル５とが電気的に切り離される。The internal structure of the bushing 2 is as follows so that the DC high voltage is not applied to the inside of the device. That is, the conducting rod 7 is connected to the internal circuit of the device. In addition, the charging cable 5 and the cable line 6
The internal electrode 8 is electrically connected to the conductor. The conducting rod 7 and the internal electrode 8 are separated from each other, and the connecting conductor 10 is mounted in the hollow portion 9 provided between the conducting rod 7 and the internal electrode 8 in a normal use state. . When applying a high DC voltage, the connecting conductor 10 is removed to remove the insulating plug 1.
Insert 1 In this way, the internal circuit of the device and the charging cable 5 are electrically disconnected.
【０００５】[0005]
【発明が解決しようとする課題】ところで、上記のよう
な従来の高電圧機器の中にはその壁面に多相給電用の複
数のブッシングを設けているものがある。図３（ａ）
に、このような機器の主要部とケーブル線路６との斜視
図を示す。この図に示すように、機器の壁面１５の内側
には、例えば三相給電用のブッシング１６が丁度三角形
の頂点に相当する位置に配置されている。そして、これ
らの下側、即ち機器の壁面１５の外部側からケーブル線
路６が装着される。特に高圧絶縁性ガスを封入したガス
絶縁機器の場合、ケーブル線路との接続部を円筒形にし
て、底板部分にこのようなブッシングを配置する。By the way, some of the conventional high voltage devices as described above are provided with a plurality of bushings for multi-phase power feeding on the wall surface thereof. FIG. 3 (a)
FIG. 1 shows a perspective view of the main part of such a device and the cable line 6. As shown in the figure, for example, a bushing 16 for three-phase power feeding is arranged inside the wall surface 15 of the device at a position just corresponding to the apex of the triangle. Then, the cable line 6 is mounted from below these, that is, from the outside of the wall surface 15 of the device. Particularly in the case of a gas-insulated device in which a high-pressure insulating gas is sealed, the connecting portion with the cable line is made cylindrical and such a bushing is arranged on the bottom plate portion.
【０００６】図４には、上記ブッシングとケーブル線路
の一部縦断面図を示す。この図に示すように、機器の壁
面１５の上に取り付けられたブッシング１６には下側か
らケーブル線路６が挿入される。このケーブル線路６は
外被１７及び絶縁体１８を順に除去してその先端に導体
１９を露出させている。この導体１９には端子２２が圧
縮接続されている。ブッシング１６の頂部には導棒２５
が配置されており、これらは端子２２とチューリップコ
ンタクト２６を介して電気接続される。なお、この近傍
の電界を緩和するために、遮蔽電極２７がブッシング１
６の内側に配置されている。FIG. 4 shows a partial vertical sectional view of the bushing and the cable line. As shown in this figure, the cable line 6 is inserted from below into the bushing 16 mounted on the wall surface 15 of the device. In this cable line 6, the jacket 17 and the insulator 18 are removed in order to expose the conductor 19 at the tip. A terminal 22 is compression-connected to the conductor 19. A guide rod 25 is provided on the top of the bushing 16.
Are arranged, and these are electrically connected to the terminal 22 through the tulip contact 26. In addition, in order to reduce the electric field in the vicinity of the bushing 1,
It is arranged inside 6.
【０００７】一方、ケーブル線路６の絶縁体１８には端
部の絶縁補強のためにストレスコーン２１が装着されて
いる。また、機器の壁面１５から下側に露出した部分に
は下部金具３１と絶縁スペーサ３２及び保護金具３３が
設けられ、ケーブル線路６の端部を保護している。な
お、ストレスコーン２１は、図に示したように押し金具
３５とスプリングユニット３６によってブッシング１６
の内壁面に押し付けられ電気的保護を図っている。従来
は以上のように、ケーブル線路とブッシングとの接続部
が構成されている。On the other hand, a stress cone 21 is mounted on the insulator 18 of the cable line 6 for reinforcing the insulation of the end portion. Further, a lower metal fitting 31, an insulating spacer 32, and a protective metal fitting 33 are provided on a portion exposed downward from the wall surface 15 of the device to protect the end portion of the cable line 6. The stress cone 21 has a bushing 16 by means of a push fitting 35 and a spring unit 36 as shown in the figure.
It is pressed against the inner wall surface of the to protect it electrically. Conventionally, the connecting portion between the cable line and the bushing is configured as described above.
【０００８】ここで、図３（ａ）に示すような機器とケ
ーブル線路の接続部において、図２に示したような構成
のブッシング２を採用しようとすると、丁度課電用ケー
ブルの接続端子３（図２）を互いにぶつからないように
配置するためには、自ずからその方向が制限されてしま
う。この状態の平面図を図３（ｂ）に示す。しかしなが
ら、通常、この種の機器に対しケーブル線路を接続する
場合、各ケーブル線路は同方向から引き込まれて、平行
に並べて布設される。直流高電圧試験用の課電用ケーブ
ル５も同様で、図３（ｂ）に示すようにいずれも同方向
から引き込まれるように布設される。従って、課電端子
３がいろいろな方角を向いていると、課電用ケーブル５
を大きく湾曲させて引き回す必要があり、非常に広い布
設スペースが必要になってしまう。Here, if the bushing 2 having the structure as shown in FIG. 2 is to be adopted at the connecting portion between the equipment and the cable line as shown in FIG. In order to arrange (FIG. 2) so as not to hit each other, the direction is naturally limited. A plan view of this state is shown in FIG. However, usually, when connecting a cable line to this type of equipment, the cable lines are drawn in from the same direction and laid in parallel. The same applies to the power-supply cable 5 for the DC high-voltage test, and as shown in FIG. 3 (b), both are installed so as to be pulled in from the same direction. Therefore, if the power charging terminal 3 faces in various directions, the power charging cable 5
It is necessary to bend and bend around a large area, which requires a very large installation space.
【０００９】[0009]
【課題を解決するための手段】本発明は以上の点を解決
するため次の構成を採用する。 〈構成〉本発明のケーブル終端接続部は、機器の壁面を
貫通するような、多相給電用の複数のブッシングのそれ
ぞれに対して、機器と電気接続されるケーブル線路の終
端を受け入れるためのケーブル接続端子と、ブッシング
を介してケーブル線路に試験用電圧を課電する課電用ケ
ーブルの終端を、ケーブル線路と課電用ケーブルの終端
部分の軸線が鋭角に交わるように受け入れる課電端子と
を設け、ブッシングの内部には、機器の内部回路と接続
される導棒と、ケーブル接続端子及び課電端子と接続さ
れた内部電極との間に、両者を電気的に切り離す中空部
であって、課電用ケーブルを課電端子に装着し、ケーブ
ル線路に試験用電圧を課電中に、課電電圧遮断用の絶縁
栓が課電端子側から挿入され、課電端子を不使用時に
は、この絶縁栓の代わりに、ケーブル線路と機器の内部
回路とを電気接続するための接続用導体を課電端子側か
ら挿入する部分を備える。The present invention adopts the following constitution in order to solve the above points. <Structure> The cable terminating portion of the present invention is a cable for receiving the end of a cable line electrically connected to a device with respect to each of a plurality of bushings for multi-phase power feeding that penetrates a wall surface of the device. A connection terminal and a power-supply terminal that receives the end of the power-supply cable that applies a test voltage to the cable line via the bushing so that the axis of the cable-wire and the end portion of the power-supply cable intersect at an acute angle. Provided, inside the bushing, between the lead rod connected to the internal circuit of the device and the internal electrode connected to the cable connection terminal and the charging terminal, there is a hollow portion for electrically disconnecting the two, When the power-supply cable is attached to the power-supply terminal and the test voltage is being applied to the cable line, the insulation plug for cutting off the power-supply voltage is inserted from the power-supply terminal side. Cost of insulation plug Ri to comprise a portion for inserting the connecting conductors for electrically connecting the internal circuit of the cable line and equipment from voltage application terminal side.
【００１０】〈説明〉本発明は、機器の壁面を貫通する
ように、多相給電用の複数のブッシングが接近して並べ
て配置され、かつ、複数の課電用ケーブルを、いずれも
ほぼ同方向から引き入れるような構成の、機器の壁面部
分におけるケーブル終端接続部に対して有効である。ケ
ーブル線路と課電用ケーブルの終端部分の軸線が鋭角に
交わるようにすると、例えばケーブル線路も課電用ケー
ブルも、機器の壁面からその壁面に垂直にあるいは斜め
に遠ざかるように、並べて布設できる。また、鋭角に交
わるように引き出さないと、いずれかのケーブルを大き
く湾曲させて布設することになり、布設作業が容易でな
く布設スペースも大きくなるが、これを解決できる。<Explanation> According to the present invention, a plurality of bushings for multi-phase power feeding are arranged in close proximity to each other so as to penetrate a wall surface of a device, and a plurality of power supply cables are arranged in substantially the same direction. It is effective for the cable terminating connection part in the wall portion of the equipment, which is configured to be pulled in from. If the axis of the cable line and the axis of the terminal portion of the power supply cable intersect at an acute angle, for example, both the cable line and the power supply cable can be laid side by side so as to be away from the wall surface of the device perpendicularly or obliquely to the wall surface. Further, if the cables are not drawn out so as to intersect with each other at an acute angle, one of the cables will be bent to be laid and the laying work will not be easy and the laying space will be large, but this can be solved.
【００１１】課電端子側から絶縁栓や接続用導体を抜き
差しするようにしたのは、課電用ケーブルの接続前にま
ず機器の内部回路とケーブル線路との断路を行う必要が
あるからである。このようなブッシングは大部分機器の
外壁面に露出しており、機器の内部には導棒とその周辺
の絶縁体のみ収容すればよく、機器側が小型化できる。The reason why the insulating plug and the connecting conductor are inserted / removed from the side of the charging terminal is that it is necessary to disconnect the internal circuit of the device from the cable line before connecting the charging cable. . Most of such bushings are exposed on the outer wall surface of the device, and it is sufficient to accommodate only the conducting rod and the insulator around it inside the device, and the device side can be downsized.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の形態を具体
例を用いて説明する。 〈具体例〉図１は、本発明のケーブル終端接続部主要部
の縦断面図である。この図には、機器の壁面４０を貫通
するブッシング４１の縦断面が示されている。なお、こ
の機器の壁面４０に対しては、丁度図３に示すようにし
て、例えば三相給電用の３個のブッシングが三角形の頂
点上に配置されるものとする。ここで、図１に示すよう
に、ブッシング４１には課電端子４３とケーブル接続端
子４４とが設けられている。そして、課電端子４３には
盲栓４５が装着されている。即ち、この図に示す状態で
は、ケーブル線路５５と機器の内部回路とが電気接続さ
れて、通常の使用状態とされている。ブッシング４１の
頂部には機器の内部回路と電気接続される導棒６１が配
置されている。また、中心部には内部電極６０が配置さ
れている。ケーブル線路５５は、外被及び絶縁体５６を
剥離して導体５７を露出させている。そして、この導体
５７の先端に端子５８を圧縮接続し、内部電極６０とチ
ューリップコンタクト５９を介して電気接続されてい
る。なお、このようなケーブル線路５５の端末構成は従
来のものと全く変わるところはない。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to specific examples. <Specific Example> FIG. 1 is a vertical cross-sectional view of a main part of a cable terminating connection portion of the present invention. In this figure, a vertical cross section of a bushing 41 that penetrates the wall surface 40 of the device is shown. Note that, as shown in FIG. 3, for example, three bushings for three-phase power feeding are arranged on the apex of a triangle on the wall surface 40 of this device. Here, as shown in FIG. 1, the bushing 41 is provided with a charging terminal 43 and a cable connection terminal 44. A blind plug 45 is attached to the charging terminal 43. That is, in the state shown in this figure, the cable line 55 and the internal circuit of the device are electrically connected to each other to be in a normal use state. At the top of the bushing 41, a conducting rod 61 that is electrically connected to the internal circuit of the device is arranged. An internal electrode 60 is arranged at the center. In the cable line 55, the outer cover and the insulator 56 are peeled off to expose the conductor 57. A terminal 58 is compression-connected to the tip of the conductor 57, and is electrically connected to the internal electrode 60 via a tulip contact 59. The terminal structure of the cable line 55 is the same as the conventional one.
【００１３】また、内部電極６０と導棒６１とは、図に
示すように互いに電気的、機械的に切り離されるように
配置されている。そして、両者を電気接続するために、
導棒６１から内部電極６０を経て課電端子４３に向かう
方向に中空部４８が形成され、ここにコーン状の接続用
導体４６が装着されている。The internal electrode 60 and the conducting rod 61 are arranged so as to be electrically and mechanically separated from each other as shown in the figure. And to electrically connect them,
A hollow portion 48 is formed in a direction from the conducting rod 61 through the internal electrode 60 to the charging terminal 43, and the cone-shaped connecting conductor 46 is mounted therein.
【００１４】一方、ケーブル線路５５に対し直流高電圧
を加えてその試験を行うような場合には、課電用ケーブ
ル５０の端末が課電端子４３に装着される。この場合に
は、盲栓４５及び接続用導体４６を中空部４８から除去
する。そして、接続用導体４６と同一形状の図示しない
絶縁栓を中空部４８に装着し、その後課電用ケーブル５
０の端子５１を内部電極６０に接触させ、装着を終え
る。これによって、課電用ケーブル５０から直流高電圧
がケーブル線路５５の導体に加えられる。On the other hand, when a DC high voltage is applied to the cable line 55 to perform the test, the terminal of the power-supply cable 50 is attached to the power-supply terminal 43. In this case, the blind plug 45 and the connecting conductor 46 are removed from the hollow portion 48. Then, an insulating plug (not shown) having the same shape as that of the connecting conductor 46 is mounted in the hollow portion 48, and then the charging cable 5 is attached.
The terminal 51 of 0 is brought into contact with the internal electrode 60, and the mounting is completed. As a result, a high DC voltage is applied from the charging cable 50 to the conductor of the cable line 55.
【００１５】この課電用ケーブル５０や接続用導体４
６、あるいは図示しない絶縁栓の構造、装着方法等は、
既に紹介した特開平５−１９１９１６号公報に記載され
たものと全く同一である。従って、その具体的な説明は
省略するが、本発明においては、この図に示すように、
課電用ケーブル５０の軸線とケーブル線路５５の軸線と
が、互いに鋭角αで交わるように課電端子４３やケーブ
ル接続端子４４の方向を設定している。この角度αは布
設スペースの関係上鋭角即ち４５゜以下が好ましく、ま
た課電端子４３とケーブル接続端子４４やその上部との
間の絶縁距離を確保するために、３０゜以上であること
が好ましい。The charging cable 50 and the connecting conductor 4
6, or the structure of the insulating plug (not shown), mounting method, etc.
This is exactly the same as that described in Japanese Patent Application Laid-Open No. 5-191916. Therefore, although a detailed description thereof is omitted, in the present invention, as shown in this figure,
The directions of the power application terminal 43 and the cable connection terminal 44 are set such that the axis of the power application cable 50 and the axis of the cable line 55 intersect at an acute angle α. This angle α is preferably an acute angle, that is, 45 ° or less in view of the space for installation, and is preferably 30 ° or more in order to secure an insulation distance between the power application terminal 43 and the cable connection terminal 44 or the upper portion thereof. .
【００１６】以上のような構成にした場合、具体的には
次のように課電用ケーブル等が接続される。図５には、
本発明のケーブル終端接続部を真上から見た主要部の平
面図を示す。この図に示すように、導棒６１がケーブル
終端接続部の中央に位置し、ブッシング４１から斜めに
課電端子４３が取り出されている。この課電端子４３を
この図に示すように、ほぼ同一の方向、即ちこの図の例
では図の下側の方向から引き込まれる課電用ケーブルと
接続する。即ち、３本の課電用ケーブルはいずれも図の
破線の矢印に示す方向から引き込まれ電気接続される。
このような向きに課電端子４３を選定すると、図３
（ｂ）に示した場合に比べて課電用ケーブルの湾曲を少
なく接続が可能となる。In the case of the above-mentioned structure, specifically, the cable for charging is connected as follows. In FIG.
The top view of the principal part which looked at the cable termination connection part of this invention from right above is shown. As shown in this figure, the conducting rod 61 is located at the center of the cable termination connecting portion, and the charging terminal 43 is taken out obliquely from the bushing 41. As shown in this figure, this power-supply terminal 43 is connected to a power-supply cable that is pulled in from almost the same direction, that is, the direction of the lower side of the figure in the example of this figure. That is, all the three charging cables are pulled in from the direction shown by the broken line arrow in the figure and electrically connected.
When the charging terminal 43 is selected in such an orientation,
Compared with the case shown in (b), it is possible to connect the charging cable with less bending.
【００１７】図６には、図５に示したように課電端子４
３の向きを設定した状態の三相給電用の複数のブッシン
グの斜視図を示す。図に示すように、課電端子４３は、
それぞれほぼ同方向に、即ち図の手前方向に向けられて
課電用ケーブル５０を受け入れる。なお、この図を見て
分かるように、本発明のケーブル終端接続部は課電端子
４３等を設ける関係上、大部分が機器の壁面４０より外
側（下側）に配置されている。即ち、機器の壁面４０の
内側（上側）に露出するブッシング４１の部分は従来の
ものに比べて十分小型化される。このことから、機器自
体を従来のものに比べて小型化し、機器の設備コスト等
を低減できる。一般に、この種の高電圧機器の内部は、
絶縁性ガスを密封し厳密な絶縁処理を施す。また、機器
の容器も大型化するほど著しくコストが上がる。従っ
て、本発明のようなケーブル終端接続部を使用すること
によって機器自体のコストを大幅に節減できる。In FIG. 6, the charging terminal 4 as shown in FIG.
The perspective view of the some bushing for three-phase electric power feeding in the state which set the direction of 3 is shown. As shown in the figure, the charging terminal 43 is
The power supply cable 50 is received in substantially the same direction, that is, in the front direction of the drawing. As can be seen from this figure, most of the cable terminating connection portion of the present invention is disposed outside (lower side) the wall surface 40 of the device because of the provision of the charging terminal 43 and the like. That is, the portion of the bushing 41 exposed on the inner side (upper side) of the wall surface 40 of the device is made sufficiently smaller than the conventional one. Therefore, the device itself can be downsized as compared with the conventional device, and the equipment cost of the device can be reduced. Generally, the inside of this kind of high voltage equipment is
Strict insulation treatment is performed by sealing the insulating gas. In addition, the larger the equipment container, the more significantly the cost increases. Therefore, the cost of the equipment itself can be significantly reduced by using the cable termination connection as in the present invention.
【００１８】なお、ここで、課電用ケーブル５０とケー
ブル線路５５の配置を入れ換えることも考えられる。即
ち、課電用ケーブル５０をブッシング４１から垂直に引
き下ろすことも考えられる。しかしながら、絶縁栓等の
着脱や課電用ケーブル５０の着脱作業を行うためには、
このように課電用ケーブル５０が上になるような配置に
することが好ましい。また、絶縁栓に適切な圧力を加え
ながら使用されるためには、中空部４８は課電用ケーブ
ル５０の軸線方向に向いていなければならない。従っ
て、導棒６１の先端を課電用端子方向に曲げて中空部を
形成する上記の構成が最適と言える。Here, it is also conceivable to switch the arrangement of the power supply cable 50 and the cable line 55. That is, it is also possible to pull down the charging cable 50 vertically from the bushing 41. However, in order to attach / detach the insulating plug or the like or attach / detach the power supply cable 50,
In this way, it is preferable to arrange the charging cable 50 so that it is on the upper side. Further, in order to use the insulating plug while applying an appropriate pressure, the hollow portion 48 must be oriented in the axial direction of the charging cable 50. Therefore, it can be said that the above-mentioned configuration in which the hollow portion is formed by bending the tip of the conducting rod 61 toward the terminal for charging is optimum.
【００１９】図７には、本発明のケーブル終端接続部を
採用した機器の概略側面図を示す。この図７（ａ）に示
すように、機器２０の壁面から下方に引き出されるよう
にケーブル線路５５が布設されている場合に、機器２０
の本体部分から離れる方向（図の右方向）にケーブル線
路５５は布設される。また、課電用ケーブル５０もやは
りケーブル線路５５とほぼ同方向に引き出されて布設さ
れる。従って、この図に示すように、課電用ケーブル５
０とケーブル線路５５の軸線が鋭角に交わるように構成
すると、大きな曲げが少なく円滑にこれらの布設が可能
となる。FIG. 7 shows a schematic side view of a device that employs the cable termination connection portion of the present invention. As shown in FIG. 7A, when the cable line 55 is laid so as to be pulled out downward from the wall surface of the device 20, the device 20
The cable line 55 is laid in the direction away from the main body (rightward in the figure). The power supply cable 50 is also pulled out and installed in substantially the same direction as the cable line 55. Therefore, as shown in this figure,
If 0 and the axis of the cable line 55 intersect at an acute angle, they can be laid smoothly without significant bending.
【００２０】一方、（ｂ）は既に紹介した従来のケーブ
ル終端接続部を採用した場合の例を示す。この図に示す
ように、機器２０の壁面から下方に引き出されるように
ケーブル線路５５が布設されていた場合、その側面から
直角に課電用ケーブル５０を引き出すと、図のＡ点及び
Ｂ点において課電用ケーブル５０の湾曲支持部を設けな
ければならない。従って、この場合には機器の側方の、
しかも高い位置に特別のケーブル支持用クリート等を配
置する必要も生じ、布設作業が煩雑になり、設備コスト
も増大する。しかも、多相給電の際には、既に図３
（ｂ）を用いて説明したような問題が生じる。従って、
図７（ａ）に示すような本発明のケーブル終端接続部は
この種の機器に対する接続構造として極めて有効であ
る。上記の説明から、本発明は必ずしもブッシングを三
角形の頂点にくるように配置する場合が最適となるが、
設置スペース縮小化の効果はブッシングを横一列に配置
したものについても同様の効果があり、これにも適用す
ることができる。On the other hand, (b) shows an example in which the conventional cable terminating connection portion already introduced is adopted. As shown in this figure, when the cable line 55 is laid out so as to be drawn out downward from the wall surface of the device 20, when the charging cable 50 is drawn out at a right angle from the side surface, at points A and B in the figure. A curved support for the charging cable 50 must be provided. Therefore, in this case, on the side of the device,
In addition, it becomes necessary to dispose a special cable supporting cleat or the like at a high position, which complicates the laying work and increases the equipment cost. Moreover, in the case of multi-phase power feeding, it is already shown in FIG.
The problem described using (b) arises. Therefore,
The cable terminating connection portion of the present invention as shown in FIG. 7A is extremely effective as a connection structure for this type of equipment. From the above description, the present invention is optimal when the bushing is arranged so as to come to the apex of the triangle.
The effect of reducing the installation space has the same effect even when the bushings are arranged in a horizontal row, and the same can be applied to this.
【図１】本発明のケーブル終端接続部の具体例を示す主
要部縦断面図である。FIG. 1 is a longitudinal cross-sectional view of a main part showing a specific example of a cable termination connection part of the present invention.
【図２】従来知られているケーブル終端接続部の主要部
縦断面図である。FIG. 2 is a vertical cross-sectional view of a main part of a conventionally known cable termination connecting portion.
【図３】（ａ）は本発明が適用されるケーブル終端接続
部の主要部斜視図、（ｂ）は従来の問題点を示す概略説
明図である。FIG. 3 (a) is a perspective view of a main part of a cable terminal connecting portion to which the present invention is applied, and FIG. 3 (b) is a schematic explanatory view showing conventional problems.
【図４】従来のケーブル終端接続部の主要部縦断面図で
ある。FIG. 4 is a vertical cross-sectional view of a main part of a conventional cable termination connection part.
【図５】本発明のケーブル終端接続部の主要部平面図で
ある。FIG. 5 is a plan view of a main part of a cable termination connection portion of the present invention.
【図６】本発明のケーブル終端接続部の外観斜視図であ
る。FIG. 6 is an external perspective view of a cable termination connection portion of the present invention.
【図７】（ａ）は本発明のケーブル終端接続部を使用し
た課電用ケーブルとケーブル線路の布設状態説明図で、
（ｂ）はその問題点の説明図である。FIG. 7 (a) is an explanatory view of a laying state of a cable for charging and a cable line using the cable terminating connection portion of the present invention,
(B) is an explanatory view of the problem.
４０ 機器の壁面 ４１ ブッシング ４３ 課電端子 ４４ ケーブル接続端子 ４６ 接続用導体 ４８ 中空部 ５０ 課電用ケーブル ５５ ケーブル線路 40 Walls of equipment 41 Bushing 43 Power terminal 44 Cable connection terminal 46 Connection conductor 48 Hollow part 50 Power cable 55 Cable line
Claims (1)
用の複数のブッシングのそれぞれに対して、 前記機器と電気接続されるケーブル線路の終端を受け入
れるためのケーブル接続端子と、 前記ブッシングを介して前記ケーブル線路に試験用電圧
を課電する課電用ケーブルの終端を、前記ケーブル線路
と課電用ケーブルの終端部分の軸線が鋭角に交わるよう
に受け入れる課電端子とを設け、 前記ブッシングの内部には、 前記機器の内部回路と接続される導棒と、前記ケーブル
接続端子及び課電端子と接続された内部電極との間に、
両者を電気的に切り離す中空部であって、 前記課電用ケーブルを前記課電端子に装着し、前記ケー
ブル線路に試験用電圧を課電中に、課電電圧遮断用の絶
縁栓が課電端子側から挿入され、課電端子を不使用時に
は、この絶縁栓の代わりに、前記ケーブル線路と機器の
内部回路とを電気接続するための接続用導体を課電端子
側から挿入する部分を備えたことを特徴とするケーブル
終端接続部。1. A cable connection terminal for receiving a termination of a cable line electrically connected to the device for each of a plurality of bushings for multi-phase power feeding, which penetrates a wall surface of the device, and the bushing. A terminal of the power-supply cable that applies a test voltage to the cable line via the power-supply terminal that receives the cable line and the axis of the terminal portion of the power-supply cable so as to intersect at an acute angle, Inside the bushing, between the lead rod connected to the internal circuit of the device, and the internal electrode connected to the cable connection terminal and the charging terminal,
A hollow part that electrically separates both, wherein the power-supply cable is attached to the power-supply terminal, and an insulating plug for interrupting the power-supply voltage is applied while applying a test voltage to the cable line. It is inserted from the terminal side, and when the power-supply terminal is not used, it is equipped with a portion for inserting the connection conductor for electrically connecting the cable line and the internal circuit of the device from the power-supply terminal side, instead of this insulating plug. A cable end connection part characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26085995A JP3175556B2 (en) | 1995-09-13 | 1995-09-13 | Cable termination connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26085995A JP3175556B2 (en) | 1995-09-13 | 1995-09-13 | Cable termination connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0984245A true JPH0984245A (en) | 1997-03-28 |
| JP3175556B2 JP3175556B2 (en) | 2001-06-11 |
Family
ID=17353753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26085995A Expired - Fee Related JP3175556B2 (en) | 1995-09-13 | 1995-09-13 | Cable termination connection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3175556B2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03235614A (en) * | 1990-02-06 | 1991-10-21 | Railway Technical Res Inst | Branch cable unit for high voltage cable |
| JPH0538769U (en) * | 1991-09-09 | 1993-05-25 | 昭和電線電纜株式会社 | Cable bundling section |
| JPH05184052A (en) * | 1991-12-27 | 1993-07-23 | Toshiba Corp | Cable head for connecting instrument |
| JPH05184043A (en) * | 1991-12-27 | 1993-07-23 | Toshiba Corp | Cable head for connecting instrument |
| JPH0759243A (en) * | 1993-08-09 | 1995-03-03 | Showa Electric Wire & Cable Co Ltd | Cable branch joint |
-
1995
- 1995-09-13 JP JP26085995A patent/JP3175556B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03235614A (en) * | 1990-02-06 | 1991-10-21 | Railway Technical Res Inst | Branch cable unit for high voltage cable |
| JPH0538769U (en) * | 1991-09-09 | 1993-05-25 | 昭和電線電纜株式会社 | Cable bundling section |
| JPH05184052A (en) * | 1991-12-27 | 1993-07-23 | Toshiba Corp | Cable head for connecting instrument |
| JPH05184043A (en) * | 1991-12-27 | 1993-07-23 | Toshiba Corp | Cable head for connecting instrument |
| JPH0759243A (en) * | 1993-08-09 | 1995-03-03 | Showa Electric Wire & Cable Co Ltd | Cable branch joint |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3175556B2 (en) | 2001-06-11 |
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