JPH0430748Y2 - - Google Patents
Info
- Publication number
- JPH0430748Y2 JPH0430748Y2 JP3263585U JP3263585U JPH0430748Y2 JP H0430748 Y2 JPH0430748 Y2 JP H0430748Y2 JP 3263585 U JP3263585 U JP 3263585U JP 3263585 U JP3263585 U JP 3263585U JP H0430748 Y2 JPH0430748 Y2 JP H0430748Y2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- electrodes
- common
- independent
- conductive layer
- 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
Links
- 239000007787 solid Substances 0.000 claims description 22
- 239000012212 insulator Substances 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000018199 S phase Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、配電用ケーブルを多方向に分配する
際に用いられる多回路開閉器に関し、特に分配さ
れた各ケーブルの検電を行う際に有用な披検電部
付の多回路開閉器を提供するものである。[Detailed description of the invention] [Industrial field of application] The present invention relates to a multi-circuit switch used when distributing power distribution cables in multiple directions, and is particularly useful when performing voltage detection on each distributed cable. The present invention provides a multi-circuit switch with a useful voltage testing section.
配電用変電所から引き出された配電用ケーブル
は、多回路開閉器を介して複数の方向へ分配さ
れ、分配された各ケーブルは、多回路開閉器への
操作により、開閉状態とされる。
Distribution cables pulled out from a distribution substation are distributed in a plurality of directions via multi-circuit switches, and each of the distributed cables is turned on or off by operating the multi-circuit switch.
ところで配電系統への電気工事等を行う場合
は、作業するケーブル系統が活線状態にあるか否
かを確認した上で行う必要がある。 By the way, when performing electrical work on a power distribution system, it is necessary to confirm whether or not the cable system to be worked on is live.
従来ケーブルに電圧が印加されて活線状態にあ
るか否かを確認するのに、ケーブルの機器との接
続部分における披検電部に検電器を接続して行つ
ていた。 Conventionally, in order to check whether a voltage is applied to a cable and the cable is in a live state, a voltage detector is connected to a voltage detection part at the connection part of the cable to a device.
上記例においては、この種配電系統が地中配電
線路である為、ケーブル部が汚損や結露状態にな
つて正確な検電を行えない場合があつた。
In the above example, since this type of power distribution system is an underground power distribution line, there are cases where the cable section becomes dirty or has condensation, making it impossible to perform accurate voltage detection.
また多回路開閉器は地上の公道上に設置される
ことからコンパクト化が図られており、これに伴
つて開閉部である各電極間の間隔が狭くされる
為、開路状態にある電極が近くの閉路状態とされ
た電極の存在で誘導電圧が生じ、このことによつ
て開路状態とされたケーブル系統の検電において
検電器が充電状態であることを表示する為、作業
者が誤つた判断をし、正確な作業を遂行できない
場合があつた。 In addition, since multi-circuit switches are installed on public roads above ground, they are becoming more compact, and as a result, the spacing between each electrode, which is the switching section, is narrowed, so the electrodes in the open state are close together. An induced voltage is generated due to the presence of the electrode in the closed circuit state, and this causes the voltage detector to indicate that the cable system is in the charged state when detecting the voltage in the cable system that is in the open circuit state, leading to incorrect judgment by the operator. There were cases where the worker was unable to perform the work accurately.
本考案は、このような従来技術の問題点に鑑み
多回路開閉器が密閉された箱内でしかも環境のよ
い所に設置されることを着目し、当該開閉器に披
検電部を備えさせることで最良の結果が得られる
点を見出したものである。 In view of the problems of the prior art, the present invention focuses on the fact that a multi-circuit switch is installed in a sealed box and in a good environment, and provides the switch with a voltage testing section. We have found that the best results can be obtained by doing this.
〔問題点を解決する為の手段〕
上記見地に基づいて本考案は、互いに導通しあ
う複数の共通電極及びこの共通電極の各極毎に対
を成す複数の独立電極を共通の固体絶縁物に埋め
込ませて構成された固定電極構体における、共通
電極と独立電極との間の固体絶縁物部に、それら
両極の導電部門で離間対向しあう対の導電層を設
けてなり、共通電極側の導電層を接地電位層とす
るとともに独立電極側の導電層を非接地電位層と
してなるものである。[Means for solving the problem] Based on the above viewpoint, the present invention provides a plurality of mutually conductive common electrodes and a plurality of independent electrodes forming a pair for each pole of the common electrode on a common solid insulator. In the embedded fixed electrode structure, a pair of conductive layers are provided in the solid insulating part between the common electrode and the independent electrodes, facing each other and separated from each other in the conductive sections of these two electrodes, so that the conductive layer on the common electrode side The layer is a ground potential layer, and the conductive layer on the independent electrode side is a non-ground potential layer.
上記構成の多回路開閉器において、変電所より
引き出されたケーブル及び分岐側の複数のケーブ
ルを接続する独立電極と共通電極とは、それらの
対毎に可動電極を着脱することにより開閉いずれ
かの状態とされるが、閉路状態とされた共通、独
立両電極においては、充電された独立電極側の導
電層には誘導電圧が生ずるので、この導電層と、
接地されたもう一つの導電層とに検電器の両端子
を接続すれば、ケーブルの電圧印加状態を確認す
ることができる。
In the multi-circuit switch with the above configuration, the independent electrode and common electrode that connect the cable drawn out from the substation and the multiple cables on the branch side can be opened or closed by attaching and detaching the movable electrode for each pair. However, in both the common and independent electrodes that are in a closed circuit state, an induced voltage is generated in the electrically conductive layer on the charged independent electrode side, so this electrically conductive layer and
By connecting both terminals of a voltage detector to another grounded conductive layer, it is possible to check the voltage application state of the cable.
いま可動電極を引き抜き、開路された対の共通
独立両電極をみた場合、共通電極が他の独立電極
との接続導通により充電されていても、その共通
電極側の導電層が接地電位のいわばしやへい層を
構成しているので、それに対向する開放された独
立電極及びそれらの中間の非接地の導電層には誘
導電位を殆ど生じない。このとき対となる両導電
層に接触された検電器で電位状態を検電してケー
ブルの電圧印加状態がないことを確認することが
できる。 If we now pull out the movable electrode and look at the open-circuited pair of common independent electrodes, even if the common electrode is charged due to connection and conduction with the other independent electrodes, the conductive layer on the common electrode side is at ground potential, so to speak. Since it constitutes a weak layer, almost no induced potential is generated in the open independent electrode facing it and the non-grounded conductive layer between them. At this time, it can be confirmed that no voltage is being applied to the cable by detecting the potential state with a voltage detector that is in contact with both of the pair of conductive layers.
以下実施例図面により説明する。 This will be explained below with reference to the drawings.
図において、1は、複数個の独立電極2,2,
2及びそれと同数個の共通電極3,3,3をエポ
キシモールド等により固体絶縁物4に埋め込んで
構成された固定電極構体、10は可動電極を示
す。 In the figure, 1 indicates a plurality of independent electrodes 2, 2,
2 and the same number of common electrodes 3, 3, 3 are embedded in a solid insulator 4 by epoxy molding or the like to form a fixed electrode assembly, and 10 indicates a movable electrode.
固定電極1の各独立電極2は、上端にチユーリ
ツプコンタクト等の雌形コンタクト2Aを設けた
電極棒2Bのこの下端にケーブル接続端子2Cを
設けてなるもので、電極棒2Bが固体絶縁物4内
にあつて、上端の雌形コンタクト部2Aが固体絶
縁物4の上面に形成された筒状態4A内に配置さ
れており、さらにケーブル接続端子2Cは露出さ
れる。 Each independent electrode 2 of the fixed electrode 1 is composed of an electrode rod 2B having a female contact 2A such as a tube contact at the upper end and a cable connection terminal 2C at the lower end, and the electrode rod 2B is made of a solid insulator. 4, the female contact portion 2A at the upper end is disposed within a cylindrical shape 4A formed on the upper surface of the solid insulator 4, and the cable connection terminal 2C is exposed.
一方各共通電極3は、上端にチユーリツプコン
タクト等の雌形コンタクト部3Aを設けた電極棒
3Bの下端を共通ブスバー5により接続して、各
電極3,3,3は互いに電気的に導通される。共
通電極3は、共通ブスバー5とともに電極棒3B
が固体絶縁物4内にあり、そして上端の雌形コン
タクト3Aが固体絶縁物4の上面に有する筒状部
4B内に配置されてある。 On the other hand, each common electrode 3 is connected to the lower end of an electrode rod 3B having a female contact portion 3A such as a tube contact at the upper end via a common bus bar 5, so that each electrode 3, 3, 3 is electrically conductive to each other. be done. The common electrode 3 is connected to the electrode rod 3B together with the common bus bar 5.
is in the solid insulator 4, and the upper female contact 3A is disposed in a cylindrical portion 4B on the upper surface of the solid insulator 4.
独立電極2,2,2と共通電極3,3,3は薄
型化を考慮して同一軸線上で交互に配置して固体
絶縁物4に指示されており、隣り合う1つの独立
電極2と1つの共通電極3とで対を成す。従つて
図面では3対である。 The independent electrodes 2, 2, 2 and the common electrodes 3, 3, 3 are arranged alternately on the same axis and directed to the solid insulator 4 in consideration of thinning. It forms a pair with two common electrodes 3. Therefore, there are three pairs in the drawing.
配電用変電所より引き出された配電用ケーブル
は、いずれか1つの独立電極2の端子2Cに終端
され、残りの複数個の独立電極2,2の端子2
C,2Cに分岐側のケーブルが接続される。 The distribution cable pulled out from the distribution substation is terminated at the terminal 2C of one of the independent electrodes 2, and then terminated at the terminal 2C of the remaining independent electrodes 2, 2.
The branch cable is connected to C and 2C.
可動電極10は、独立電極2と共通電極3との
対数分用意され、一対の雄形コンタクト11,1
1を共通ブスバー12で橋絡してこれらをエポキ
シモールド等による固体絶縁物13内に配設され
る。固体絶縁物13は筒状部13Aを有し、この
中に一対の雄形コンタクト11,11を露出配置
し、そして共通のブスバー12を埋め込んでい
る。 The movable electrodes 10 are prepared by the number of independent electrodes 2 and common electrodes 3, and have a pair of male contacts 11,1.
1 are bridged by a common bus bar 12, and these are disposed within a solid insulator 13 made of epoxy mold or the like. The solid insulator 13 has a cylindrical portion 13A in which a pair of male contacts 11, 11 are exposed and a common bus bar 12 is embedded.
かかる可動電極10は、隣り合う1つの独立電
極2と1つの共通電極3とに対し、それぞれの雌
形コンタクト2A,3Aに一対の雄形コンタクト
11,11が挿入されかつそれとともに筒状部4
A,4Bを筒状部13A内に装入するよう取着さ
れることにより、両極2,3を閉絡させ、一方そ
の状態より引き抜くことにより両極2,3を解放
させる。 Such a movable electrode 10 has a pair of male contacts 11, 11 inserted into female contacts 2A, 3A of adjacent independent electrodes 2 and one common electrode 3, and a cylindrical portion 4.
By inserting A and 4B into the cylindrical portion 13A, the poles 2 and 3 are closed, and by pulling them out from this state, the poles 2 and 3 are released.
図面では、1相分の固定電極構体1、可動電極
10を示してある。従つてそれがR相であれば、
S相、T相の固定電極構体及び可動電極が用意さ
れ、それらは並列態様で密閉室に収容される。 In the drawing, a fixed electrode structure 1 and a movable electrode 10 for one phase are shown. Therefore, if it is R phase,
S-phase and T-phase fixed electrode assemblies and movable electrodes are prepared and housed in a sealed chamber in parallel.
固体絶縁物4の基板部4Bの周面には、接地電
位の導電層6が設けられており、隣接される固体
絶縁物の高圧導電部等との電気的しやへいが行わ
れる。尚可動電極10の固体絶縁物13の外周面
にも導電層が施され、外部高圧電位部との電気的
しやへいが行われる。 A conductive layer 6 having a ground potential is provided on the circumferential surface of the substrate portion 4B of the solid insulator 4, and is electrically isolated from the high-voltage conductive portion of the adjacent solid insulator. A conductive layer is also applied to the outer peripheral surface of the solid insulator 13 of the movable electrode 10 to provide electrical insulation from an external high-voltage potential section.
さて上記の如く可動電極10の着脱により開放
あるいは閉絡される固定電極棒構体1の各独立電
極2,2,2の周囲における固体絶縁物部4Bに
は、円筒状の溝7,7,7が設けられ、この溝7
によつて、互いに隣り合う独立電極2の電極棒2
Bと共通電極3の電極棒3B及び共通ブスバー5
とを区画する空隙が与えられている。 Now, as described above, the solid insulator portion 4B around each independent electrode 2, 2, 2 of the fixed electrode rod structure 1, which is opened or closed by attaching and detaching the movable electrode 10, has cylindrical grooves 7, 7, 7. is provided, and this groove 7
Accordingly, the electrode rods 2 of the independent electrodes 2 adjacent to each other
B and the electrode rod 3B of the common electrode 3 and the common bus bar 5
A void is provided to separate the
溝7内の空隙を隔てて対向し合う両面には、導
電層8,9が施される。一方の共通電極3側の導
電層8は、固体絶縁物周面に施された導電層6と
接続し合い、接地電位とされ、他方の独立電極2
側の導電層9は、上記の導電層8及び固体絶縁物
周面に施された導電層6とはそれらの間に隙間を
設けて切り離され、非接地電位としてなるもので
ある。 Conductive layers 8 and 9 are applied to opposite surfaces of the groove 7 with a gap in between. The conductive layer 8 on one side of the common electrode 3 is connected to the conductive layer 6 provided on the peripheral surface of the solid insulator and has a ground potential, and the other independent electrode 2
The conductive layer 9 on the side is separated from the conductive layer 8 and the conductive layer 6 applied to the peripheral surface of the solid insulator with a gap therebetween, and is at a non-ground potential.
これらの導電層6,8及び9は、導電性塗料の
コーテイングあるいは金属性材料を板状としてそ
れの取着により形成することができる。導電層
8,9については、固体絶縁物4内に埋め込ませ
ることも可能である。 These conductive layers 6, 8, and 9 can be formed by coating with conductive paint or by attaching a plate-like metal material. The conductive layers 8 and 9 can also be embedded within the solid insulator 4.
非接地電位の導電層9は、共通電極3の電極棒
3B及び共通ブスバー5と近い極離にあるが、そ
れらとの間にある接地電位の導電層8により電気
的にしやへいされる為、共通電極3部からの誘導
で電圧を生ずることはない。しかし、可動電極1
0を取着させて独立、共通電極2,3間が閉絡さ
れた場合には、第5図に示すように、独立電極2
と非接地導電層9との間の固体絶縁物4がコンデ
ンサ11となつて、当該導電層9に誘導電圧が生
じ得る。従つてその導電層9と接地電位の例えば
固体絶縁物周面の導電層6とに検電器20の端子
を接触させることにより、回路が開閉しているか
否かを確認することができる。 The non-ground potential conductive layer 9 is located close to the electrode rod 3B of the common electrode 3 and the common bus bar 5, but is electrically suppressed by the ground potential conductive layer 8 between them. No voltage is generated by induction from the three common electrodes. However, the movable electrode 1
0 is attached and the independent and common electrodes 2 and 3 are closed, as shown in FIG.
The solid insulator 4 between the conductive layer 9 and the non-grounded conductive layer 9 acts as a capacitor 11, and an induced voltage can be generated in the conductive layer 9. Therefore, by bringing the terminal of the voltage detector 20 into contact with the conductive layer 9 and the conductive layer 6 on the circumferential surface of the solid insulator, which is at ground potential, for example, it can be confirmed whether the circuit is open or closed.
尚上記非接地導電層9及び接地導電層6,8に
夫々導通された端子を予じめ設け、検電器または
リード線の接続を容易にすることもできる。 Incidentally, it is also possible to provide in advance terminals electrically connected to the non-grounded conductive layer 9 and the grounded conductive layers 6 and 8, respectively, to facilitate connection of a voltage detector or a lead wire.
本考案の多回路開閉器によれば、それぞれのケ
ーブル系統における電極に関連して、該電極から
の誘導電圧を生ぜしめる非接地導電層を具有する
ことにより、ケーブル系統の開閉状態を確認する
為の検電を当該ケーブルに直接手を下することな
く実施でき、しかも隣接する電極の充電部門での
誘導を確実に防止してかかる非接地導電層も、近
接するその他の充電部とは確実に電気的にしやへ
いされて必要とする電極のみの誘導を受けるよう
にされており、従つて誤判定を防止して正確な検
電を遂行できるものである。
According to the multi-circuit switch of the present invention, by having a non-grounded conductive layer that generates an induced voltage from the electrode in relation to the electrode in each cable system, it is possible to confirm the open/closed state of the cable system. voltage detection can be carried out without touching the cable directly, and it also reliably prevents induction of adjacent electrodes in the live parts. It is electrically shielded so that only the necessary electrodes are guided, thus preventing erroneous judgments and performing accurate voltage detection.
添付図面は、本考案多回路開閉器の一実施例を
示すもので、第1図は、固定電極構体の平面図、
第2図は、第1X−X線部における固定電極構体
の断面及び可動電極を示す断面的正面図、第3図
は、固定電極構体の底面図、第4図は、第1図y
−y線部における固定電極構体拡大断面図、第5
図は、同第4図に示す固定電極構体の導電部のみ
を示す簡略図である。
1……固定電極構体、2……独立電極、3……
共通電極、4……固体絶縁物、5……共通ブスバ
ー、6,8……導電層(接地電位)、9……導電
層(非接地電位)、10……可動電極、20……
検電器。
The attached drawings show an embodiment of the multi-circuit switch of the present invention, and FIG. 1 is a plan view of the fixed electrode structure;
FIG. 2 is a cross-sectional front view showing the cross section of the fixed electrode assembly and the movable electrode at the first X-X line, FIG. 3 is a bottom view of the fixed electrode assembly, and FIG. 4 is the one shown in FIG.
- Enlarged sectional view of the fixed electrode structure at the y line section, No. 5
The figure is a simplified diagram showing only the conductive part of the fixed electrode structure shown in FIG. 4. 1...Fixed electrode structure, 2...Independent electrode, 3...
Common electrode, 4... Solid insulator, 5... Common bus bar, 6, 8... Conductive layer (ground potential), 9... Conductive layer (non-ground potential), 10... Movable electrode, 20...
Voltage detector.
Claims (1)
電極の各極毎に対となつて設けられる複数の独立
電極のそれぞれを共通の固体絶縁物に埋め込ませ
て構成された固定電極構体と、上記対となる共通
電極、独立電極の極間に着脱される複数の可動電
極とを備えたものであつて、上記固定電極構体に
おける共通電極と独立電極との間の固体絶縁物部
にそれら両極の導電部間で離間対向しあう対の導
電層が設けられてなり、共通電極側の上記導電層
を接地電位層としてなるとともに、独立電極側の
導電層を非接地電位層としてなることを特徴とす
る披検電部を有する多回路開閉器。 A fixed electrode structure comprising a plurality of mutually conductive common electrodes and a plurality of independent electrodes provided in pairs for each pole of the common electrodes, each embedded in a common solid insulator; A common electrode and a plurality of movable electrodes that are attached and detached between the poles of the independent electrodes, and a solid insulator between the common electrode and the independent electrodes in the fixed electrode structure are provided with conductive portions of the two poles. A pair of conductive layers facing each other and separated from each other are provided, the conductive layer on the common electrode side serving as a ground potential layer, and the conductive layer on the independent electrode side serving as a non-ground potential layer. A multi-circuit switch with a voltage detection section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3263585U JPH0430748Y2 (en) | 1985-03-07 | 1985-03-07 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3263585U JPH0430748Y2 (en) | 1985-03-07 | 1985-03-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61149243U JPS61149243U (en) | 1986-09-13 |
JPH0430748Y2 true JPH0430748Y2 (en) | 1992-07-24 |
Family
ID=30534333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3263585U Expired JPH0430748Y2 (en) | 1985-03-07 | 1985-03-07 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0430748Y2 (en) |
-
1985
- 1985-03-07 JP JP3263585U patent/JPH0430748Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS61149243U (en) | 1986-09-13 |
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