JPH0745891Y2 - Branch terminal for transformer - Google Patents
Branch terminal for transformerInfo
- Publication number
- JPH0745891Y2 JPH0745891Y2 JP1989030742U JP3074289U JPH0745891Y2 JP H0745891 Y2 JPH0745891 Y2 JP H0745891Y2 JP 1989030742 U JP1989030742 U JP 1989030742U JP 3074289 U JP3074289 U JP 3074289U JP H0745891 Y2 JPH0745891 Y2 JP H0745891Y2
- Authority
- JP
- Japan
- Prior art keywords
- connection
- main line
- insulating
- conductor
- bypass
- 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
- Housings And Mounting Of Transformers (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は配電用変圧器の高圧側において通常の電力供
給をなす本線接続具を着脱式とするとともに高圧側にお
いて点検、修理、工事等で低圧側へ電力の供給ができな
い場所に高圧側端子部においてバイパス具を着脱式とし
て無停電でバイパス給電ぽ可能とし、本線接続具を外し
て高圧側において機器類の点検、修理、工事を行いうる
変圧器用分岐端子部に関する。[Detailed Description of the Invention] [Industrial field of application] This invention uses a main line connecting device that is a normal power supply on the high-voltage side of a distribution transformer as a detachable type, and can be used for inspection, repair, construction, etc. on the high-voltage side. In places where power cannot be supplied to the low voltage side, bypass devices can be detached at the high voltage side terminal to enable bypass power supply without interruption, and main line connectors can be removed to inspect, repair, and perform equipment on the high voltage side. The present invention relates to a branch terminal unit for a transformer.
従来変圧器の高圧側端子の接続構造は、本線を接続する
のみであり、高圧側の点検、修理等は停電による手段と
か、活線状態では絶縁電線の皮むきをしてバイパス線の
接続を行い、電源側最寄りの接続部を切離する無停電工
法を行う等している。Conventionally, the connection structure of the high-voltage side terminal of the transformer is only to connect the main line, and for inspection and repair of the high-voltage side, it is necessary to connect the bypass line by peeling the insulated wire in the live line condition. The uninterruptible construction method is used to disconnect the nearest connection on the power supply side.
又、たとえば、実開昭60-157654号（実開昭62-68406
号）によれば、高圧開閉器の端子部よりバイパスを取る
ため、外周をキャップで覆って絶縁された接続端子に挿
入孔を設け、挿入孔内にバイパス用端子及び絶縁性の開
閉扉を備えて、バイパス接続時にバイパス具の尖端で開
閉扉を押し開いてバイパス用端子に挿入接続できるよう
にしてある。In addition, for example, Japanese Utility Model No. 60-157654 (Japanese Utility Model No. 62-68406)
According to No.), since the bypass is taken from the terminal part of the high-voltage switch, the outer periphery is covered with a cap to provide an insertion hole in the insulated connection terminal, and the bypass terminal and an insulating opening / closing door are provided in the insertion hole. When the bypass is connected, the opening / closing door is pushed open by the tip of the bypass tool so that the bypass terminal can be inserted and connected.
かつ又、実開昭59-106016号（実開昭61-19914号）によ
れば、ブッシングの貫通導体の二次側端子にケーブルを
接続し、その接続部に絶縁カバーを取付け、ブッシング
の中間に補助端子部を設け、補助端子部を通じて貫通導
体へ分岐導体を挿入接続させ、使用しないとき補助端子
部の開口部に保護キャップをかぶせるようにしてある。Moreover, according to SAIkai 59-106016 (SAI 61-19914), a cable is connected to the secondary side terminal of the through conductor of the bushing, an insulating cover is attached to the connection, and the bushing intermediate An auxiliary terminal portion is provided on the above, the branch conductor is inserted and connected to the through conductor through the auxiliary terminal portion, and the protective cap is put on the opening portion of the auxiliary terminal portion when not in use.
従来の技術のうち前者の活線にバイパス線の接続を行う
場合は皮むき、接続に手間がかかり、活線作業ゆえ危険
で、事故を生ずる恐れがあり不都合であった。In the case of connecting the bypass line to the former live line among the conventional techniques, peeling, the connection is troublesome, and it is dangerous because of the live line work, which may cause an accident, which is inconvenient.
又、実開昭62-68406号では絶縁包囲された接続端子内に
備えるバイパス用端子、開閉扉の構造が甚だ複雑であ
り、その接続端子に本線のケーブルを固定する構造で、
本線のケーブルを挿脱する構成ではなく、単にバイパス
線を着脱できるだけである。In addition, in No. 62-68406, the structure of the bypass terminal and the opening / closing door provided in the insulation-enclosed connection terminal is extremely complicated, and the main line cable is fixed to the connection terminal.
Instead of inserting and removing the main cable, it is possible to simply attach and detach the bypass line.
又、実開昭61-19914号ではケーブルを接続固定した貫通
導体の中間部の補助端子部を通じて分岐導体を接続する
ものであって、分岐導体の接続後本線のケーブルを挿脱
するものではない。かかる構成で分岐導体の着脱の都
度、絶縁カバーを外して高圧の貫通導体に本線のケーブ
ルをボルト等で着脱する作業を行うことは甚だ危険を伴
う。In addition, in Japanese Utility Model No. 61-19914, the branch conductor is connected through the auxiliary terminal part in the middle of the through conductor to which the cable is connected and fixed, and the main line cable is not inserted or removed after the branch conductor is connected. . With such a configuration, it is extremely dangerous to remove the insulating cover and attach / detach the main cable to / from the high-voltage through conductor each time the branch conductor is attached / detached with a bolt or the like.
この考案は変圧器の高圧側端子の絶縁碍子に挿通した導
体に本線接続具の絶縁接続筒を回すことにより導体に着
脱可能とするとともに本線の先端の接続金具を導体に挿
脱可能とし、かつ、絶縁筒を回し端子部に直交する方向
にバイパス具を着脱可能とし、迅速、確実、安全バイパ
スの接離、導体と本線の接離を可能とし、無停電バイパ
ス回路をつなぎ低圧側へ電力の供給を停止することな
く、高圧本線側の機器の点検、修理、工事を可能とした
変圧器用分岐端子部を提供するにある。This invention makes it possible to attach / detach to / from the conductor by inserting the insulation connecting tube of the main line connector into the conductor inserted in the insulator of the high-voltage side terminal of the transformer, and to insert / remove the connection fitting at the end of the main line to the conductor. By rotating the insulating cylinder, the bypass device can be attached and detached in the direction orthogonal to the terminal part, enabling quick and reliable connection / disconnection of the safety bypass and connection / disconnection of the conductor and the main line, and connecting the uninterruptible bypass circuit to the power supply to the low voltage side. It is to provide a branch terminal for a transformer that enables inspection, repair, and construction of equipment on the high-voltage mains side without stopping supply.
上記目的を達成するために、この考案における変圧器用
分岐端子部の構造は、変圧器Ａの絶縁碍子１に挿通した
導体２の接続部３にバイパス具Ｃの接続口14を穿設し、
かつ、接続部３の先端にねじ部７とテーパー付き挿入孔
８を設け、別に一側の前記ねじ部７に螺合させるねじ部
13を設けた凹孔14aと他側の本線Ｄを挿入する挿通孔15
とを連通した本線接続具Ｂの絶縁接続筒16を設け、該凹
孔14aに本線Ｄの先端のテーパー付き導電性接続金具17
を内蔵させてばね20で軸方向に付勢し、バイパス具用挿
入口５を有する絶縁筒６を導体２の接続部３と絶縁接続
筒16の外周に回動自由に遊嵌し、絶縁筒６のみ回してバ
イパス接続口４を開閉可能とし、かつ、絶縁接続筒16を
回して接続部３に着脱するとともに内部の本線Ｄの接続
金具17を接続部３の挿入孔８に軸方向に挿脱可能とした
ものである。In order to achieve the above object, the structure of the transformer branch terminal portion according to the present invention is such that the connection port 3 of the bypass tool C is bored in the connection portion 3 of the conductor 2 inserted in the insulator 1 of the transformer A,
Also, a screw portion 7 and a tapered insertion hole 8 are provided at the tip of the connection portion 3, and the screw portion is separately screwed into the screw portion 7 on one side.
The recessed hole 14a provided with 13 and the insertion hole 15 for inserting the main line D on the other side
An insulating connection tube 16 of the main line connector B communicating with and is provided, and a tapered conductive connecting metal fitting 17 at the tip of the main line D is provided in the concave hole 14a.
And is biased in the axial direction by a spring 20, and an insulating cylinder 6 having a bypass tool insertion port 5 is freely rotatably fitted around the connecting portion 3 of the conductor 2 and the outer circumference of the insulating connecting cylinder 16 to form an insulating cylinder. The bypass connection port 4 can be opened and closed by turning 6 only, and the insulating connection tube 16 is turned to attach / detach to / from the connecting part 3 and the connecting fitting 17 of the internal main line D is inserted into the insertion hole 8 of the connecting part 3 in the axial direction. It is removable.
また、前記本線接続具Ｂの絶縁接続筒16のねじ部13付き
凹孔14aの奥に空間部19を設け、先端をテーパー状と
し、かつ、本線Ｄの芯線を挿入拘着する接続金具17の基
端の環状ねじ部18を空間部19に軸方向に移動可能に備
え、環状ねじ部18と凹孔との間にスプリングワッシャ20
を介在させたものである。In addition, a space portion 19 is provided at the back of the recessed hole 14a with the threaded portion 13 of the insulating connection tube 16 of the main line connecting tool B, the tip is tapered, and the connecting metal fitting 17 for inserting and fixing the core wire of the main line D is provided. The annular screw portion 18 at the base end is provided in the space 19 so as to be movable in the axial direction, and the spring washer 20 is provided between the annular screw portion 18 and the concave hole.
Is interposed.
前記技術手段によれば、絶縁碍子に挿通した導体２の一
端を変圧器の内部端子に接続して備え、この導体２の他
端の接続部３のねじ部７に対して本線接続具Ｂを略同一
軸線状で回動して絶縁接続筒16の凹孔14aのねじ部13を
螺合して装着することによりスプリングワッシャ20の付
勢により本線Ｄのテーパー付き導電性接続金具17を導体
２のテーパー付き挿入孔８に軸方向に圧接して本線から
の給電を行う。然るに配電用変圧器より高圧側におい
て、点検、修理、工事等で低圧側への電力供給が不可能
な場合、先ず絶縁筒６を廻して導体２の接続口４にバイ
パス具用挿入口５を合致させ、バイパス具Ｃを導体２の
接続口４に直交状に挿入して電気的に接続し、無停電で
バイパス回路を通じて給電できるようにしてから、前記
とは逆方向に絶縁接続筒16を回わしてねじ部13を接続部
３のねじ部７より外し本線Ｄの導電性接続金具17を導体
２の挿入孔８より軸方向に抜いて取外し、高圧側の機器
類の点検、修理、工事を行うものである。According to the technical means, one end of the conductor 2 inserted through the insulator is connected to the internal terminal of the transformer, and the main wire connecting tool B is attached to the screw portion 7 of the connecting portion 3 at the other end of the conductor 2. By rotating around substantially the same axis and screwing the threaded portion 13 of the recessed hole 14a of the insulating connection tube 16 into place, the spring washer 20 biases the tapered conductive connecting fitting 17 of the main line D into the conductor 2 Power is supplied from the main line by axially pressing the tapered insertion hole 8 of FIG. However, on the high voltage side of the distribution transformer, when it is impossible to supply electric power to the low voltage side due to inspection, repair, construction, etc., first turn the insulating tube 6 and insert the bypass tool insertion port 5 into the connection port 4 of the conductor 2. After matching, the bypass tool C is inserted into the connection port 4 of the conductor 2 in an orthogonal manner and electrically connected, and power can be supplied through the bypass circuit without interruption, and then the insulating connection tube 16 is installed in the opposite direction. Turn to remove the screw part 13 from the screw part 7 of the connection part 3, remove the conductive connection fitting 17 of the main wire D from the insertion hole 8 of the conductor 2 in the axial direction, and remove it, and then inspect, repair, and install the high-voltage side devices. Is to do.
この考案の実施例について図面を参照して説明する。 An embodiment of the present invention will be described with reference to the drawings.
第１図乃至第４図において、Ａは配電用変圧器で、その
高圧側部端子にこの考案の変圧器用分岐端子部を取外し
可能に取着する。In FIGS. 1 to 4, A is a distribution transformer, to which a high voltage side terminal is detachably attached with a transformer branch terminal portion of the present invention.
この考案の変圧器用分岐端子部は絶縁碍子１に挿通して
一端を接続した導体２に本線接続具Ｂ及びバイパス具Ｃ
を着脱式としたものである。The transformer branch terminal portion of the present invention is inserted into an insulator 1 and is connected at one end to a conductor 2 which is connected to a main line connecting tool B and a bypass tool C.
Is a detachable type.
２は絶縁碍子１内に挿通する棒状導体で、一端を配電用
変圧器Ａの内部端子と接離可能とし、かつ他端の接続部
３を絶縁碍子１の凹孔1a内に突出状に備える。該導体２
には本線接続具Ｂを同一軸線上で着脱可能に接続するた
め接続部３として導体２の端部外周に雄ねじ部７を設け
るとともに端部中心に入口をテーパー付きとした挿入孔
８を穿設し、かつ、該雄ねじ部７より内方に角軸部９を
形成して導体の軸線と直交方向に接続口４として螺孔を
設け、バイパス具Ｃを導体の軸線と直交する方向に着脱
可能に接続するようになす。又角軸部９は下面9aだけに
バイパス具Ｃの固定接触子21を直接当接可能とし、他の
面は絶縁材10を被覆してある。実施例では導体２のバイ
パス具Ｃの接続する部位を角軸部９としてあるが、この
形状に限られるものではない、又角軸部９の絶縁材10の
断面形状は半円状として後述の絶縁筒６を外周に回動自
由に備えるようになす。さらに角軸部９の接続口４は絶
縁碍子１の凹孔1a内に位置するため、絶縁碍子１の周壁
に切欠口11を形成して該切欠口11に接続口４を一致せし
めるようになす。Reference numeral 2 is a rod-shaped conductor that is inserted into the insulator 1, one end of which can be brought into contact with and separated from the internal terminal of the distribution transformer A, and the other end of which is provided with a connecting portion 3 in a concave hole 1a of the insulator 1 in a protruding manner. . The conductor 2
In order to detachably connect the main line connector B on the same axis, a male screw portion 7 is provided on the outer periphery of the end of the conductor 2 as the connecting portion 3, and an insertion hole 8 having a tapered inlet is formed at the center of the end. In addition, a square shaft portion 9 is formed inward of the male screw portion 7, a screw hole is provided as a connection port 4 in a direction orthogonal to the axis line of the conductor, and the bypass tool C can be attached and detached in a direction orthogonal to the axis line of the conductor. To connect to. Further, the angular shaft portion 9 can directly contact the fixed contact 21 of the bypass tool C only on the lower surface 9a, and the other surface is covered with the insulating material 10. In the embodiment, the portion of the conductor 2 to which the bypass tool C is connected is the angular shaft portion 9, but the shape is not limited to this shape, and the cross-sectional shape of the insulating material 10 of the angular shaft portion 9 is a semicircle and will be described later. The insulating cylinder 6 is provided so as to be freely rotatable on the outer circumference. Further, since the connection port 4 of the square shaft portion 9 is located in the concave hole 1a of the insulator 1, a cutout port 11 is formed in the peripheral wall of the insulator 1 so that the connection port 4 can be aligned with the cutout port 11. .
本線接続具Ｂは導体２の接続部３に着脱できる絶縁接続
筒16内に接続部３の挿入孔８に挿入圧接する本線Ｄの導
電性の接続金具17を内蔵したものである。The main line connecting tool B has a conductive connecting fitting 17 for the main line D which is inserted and pressure-contacted with the insertion hole 8 of the connecting portion 3 in an insulating connecting cylinder 16 which can be attached to and detached from the connecting portion 3 of the conductor 2.
絶縁接続筒16は中央外周に段付きの大径の把手部12を設
け、その一端の円筒部14の凹孔14aに前記導体２の雄ね
じ部７に螺合させる雌ねじ部13と空間部19を形成すると
ともに他端よりその奥の空間部19へ本線Ｄを挿入する挿
通孔15を同一軸線上に連通して設け、円筒部14の凹孔14
a内に前記導体２の接続部３のテーパー付き挿入孔８に
合致しうるように先端外周を先細のテーパー状となし、
かつ、内部に本線Ｄの芯線を挿入して先端部を適宜拘着
手段で拘着保持する導電性の接続金具17を内蔵し、該接
続金具17に本線Ｄの芯線を挿入して拘着して接続金具17
を導体２の接続部３のテーパー付き挿入孔８に挿入する
とともに接続部３の雄ねじ部７に絶縁接続筒16の雌ねじ
部13を螺合して締付け、導体２の接続部３に本線接続具
Ｂを同一軸線上で着脱可能とする。接続金具17は基端に
雌ねじ部13に螺合しうる環状ねじ部18を形成し、該環状
ねじ部18を絶縁接続筒16の円筒部14の凹孔14a内の雌ね
じ部13を越えて奥の空間部19に軸方向に移動自由に位置
させ、接続金具17と凹孔14aの内端間にスプリングワッ
シャー20等ばねを介在して接続金具17を軸方向に付勢さ
せ、絶縁接続筒16の締付け時に接続金具17を接続部３の
挿入孔８に軸方向に圧接保持するようにしてある。The insulating connection cylinder 16 is provided with a stepped large-diameter grip portion 12 on the outer periphery of the center, and a female screw portion 13 and a space portion 19 for screwing the male screw portion 7 of the conductor 2 into a concave hole 14a of the cylindrical portion 14 at one end thereof. An insertion hole 15 for inserting the main line D into the space portion 19 which is formed at the back end from the other end is provided so as to communicate with each other on the same axis line.
The outer periphery of the tip is tapered so that it can be fitted in the tapered insertion hole 8 of the connecting portion 3 of the conductor 2 in a.
In addition, a conductive connecting metal fitting 17 for inserting the core wire of the main wire D into the inside thereof and appropriately holding and holding the tip portion with the bonding means is built in, and the core wire of the main wire D is inserted into the connecting metal fitting 17 and locked. Connection fitting 17
Is inserted into the tapered insertion hole 8 of the connecting portion 3 of the conductor 2, and the female screw portion 13 of the insulating connecting tube 16 is screwed into the male screw portion 7 of the connecting portion 3 to tighten the main wire connecting device to the connecting portion 3 of the conductor 2. B can be attached and detached on the same axis. The connecting fitting 17 has an annular threaded portion 18 that can be screwed into the female threaded portion 13 at the base end, and the annular threaded portion 18 extends beyond the female threaded portion 13 in the recessed hole 14a of the cylindrical portion 14 of the insulating connection tube 16 to the back. Is movably positioned in the space portion 19 in the axial direction, and a spring such as a spring washer 20 is interposed between the connecting fitting 17 and the inner end of the recessed hole 14a to urge the connecting fitting 17 in the axial direction, so that the insulating connecting tube 16 The connection fitting 17 is axially held in pressure contact with the insertion hole 8 of the connection portion 3 when tightened.
前記空間部19の内径は環状ねじ部18の雌ねじの外径より
やや大径として導電性接続金具17の環状ねじ部18を空間
19内で遊動自由に位置させ、接続金具17のテーパー状先
端部を接続部３のテーパー付き挿入孔８と軸芯を合わせ
て嵌合可能とする。The inner diameter of the space portion 19 is set to be slightly larger than the outer diameter of the female screw of the annular screw portion 18 so that the annular screw portion 18 of the conductive connecting fitting 17 is provided in the space.
It is freely movably positioned in 19 so that the tapered tip end of the connection fitting 17 can be fitted with the tapered insertion hole 8 of the connection part 3 in alignment with the shaft center.
６は本線接続具Ｂの接続部とバイパス具Ｃの接続部の外
周を囲繞する絶縁筒で、該絶縁筒６の周面には前記導体
２の角軸部９の接続口４の位置にバイパス具用挿入口５
を穿設し、該絶縁筒６を導体２の角軸部９の半円状絶縁
材10と絶縁接続筒16の円筒部14の外周に回動自由に遊嵌
し、絶縁接続筒16の円筒部14を囲繞するとともに導体２
の接続口４を開閉するようになす。Reference numeral 6 denotes an insulating cylinder surrounding the outer circumferences of the connecting portion of the main line connecting tool B and the connecting portion of the bypass tool C. The insulating cylinder 6 has a peripheral surface on which the bypass is provided at the position of the connecting port 4 of the square shaft portion 9 of the conductor 2. Tool insertion slot 5
And the insulating cylinder 6 is loosely rotatably fitted around the semicircular insulating material 10 of the angular shaft portion 9 of the conductor 2 and the cylindrical portion 14 of the insulating connecting cylinder 16 to form a cylinder of the insulating connecting cylinder 16. Surrounding part 14 and conductor 2
The connection port 4 is opened and closed.
実施例の絶縁筒６は一端に把手部12に被嵌する段付き環
状嵌合部を設け、絶縁筒６を絶縁接続筒16の円筒部14と
把手部12にかぶせるように遊嵌し、絶縁筒６が抜脱しな
いようにしてある。The insulating cylinder 6 of the embodiment is provided with a stepped annular fitting portion to be fitted to the handle portion 12 at one end, and the insulating cylinder 6 is loosely fitted so as to cover the cylindrical portion 14 of the insulating connection cylinder 16 and the handle portion 12, and is insulated. The cylinder 6 is designed not to be pulled out.
バイパス線Ｅを接続するバイパス具Ｃは上部に前記導体
２の角軸部９に当接する接触部21aを有し、かつ、下部
にバイパス線Ｅを接続する固定接触子21内に上端に導体
２の接続口４に螺合する螺杆22を設けた操作棒23を回動
自由に挿設し、操作棒23の螺杆22を廻して接続口４に螺
合し、固定接触子21の上端を導体２の角軸部９に当接さ
せてバイパス回路を接続する。The bypass tool C for connecting the bypass wire E has a contact portion 21a in contact with the angular shaft portion 9 of the conductor 2 in the upper portion, and a conductor 2 at the upper end in the fixed contact 21 for connecting the bypass wire E in the lower portion. An operating rod 23 provided with a screw rod 22 screwed into the connection port 4 is rotatably inserted, the screw rod 22 of the operation rod 23 is turned and screwed into the connection port 4, and the upper end of the fixed contact 21 is made into a conductor. The bypass circuit is connected by bringing it into contact with the second angular shaft portion 9.
24は絶縁カバーで、前記固定接触子21の上部に接触部21
aを露出状に備え、かつ、バイパス線Ｅの接続部を囲繞
する。実施例における固定接触子21は上部の接触部21a
を小径に設けるとともに中心に段付挿通孔25を形成した
構造で、下部側面にバイパス線Ｅを接続金具26で接続
し、該固定接触子21の段付挿通孔25に皿ばね27等を介在
して操作棒23を挿入し螺杆22を挿通孔25の上端に突出さ
せ、螺杆22の基部に設けた突条28を側方よりビス29で受
止め保持してある。The reference numeral 24 designates an insulating cover, which is provided on top of the fixed contactor 21 so that the contact portion 21
a is exposed and surrounds the connection portion of the bypass line E. The fixed contact 21 in the embodiment has the upper contact portion 21a.
With a small diameter and a stepped insertion hole 25 formed in the center, the bypass wire E is connected to the lower side surface with a connecting metal fitting 26, and a disc spring 27 or the like is interposed in the stepped insertion hole 25 of the fixed contact 21. Then, the operating rod 23 is inserted to project the screw rod 22 to the upper end of the insertion hole 25, and the ridge 28 provided at the base of the screw rod 22 is laterally received and held by the screw 29.
なお、30は本線接続具Ｂを外した時に接続部３に螺合し
て塞ぐねじ付き覆蓋で外径は絶縁筒６の環状嵌合部内に
入る径とする。31,32はシール材、33,34はスプリングワ
ッシャー、35は導体のねじ部、36はナットである。Reference numeral 30 denotes a threaded cover that is screwed into the connection portion 3 to close it when the main line connecting device B is removed, and the outer diameter thereof is set to a diameter that fits within the annular fitting portion of the insulating cylinder 6. 31 and 32 are sealing materials, 33 and 34 are spring washers, 35 is a threaded portion of the conductor, and 36 is a nut.
前記した実施例の構造によれば本線側の機器類の点検、
修理時等に第２図に示すように絶縁筒６を回動して導体
２の接続口４と絶縁碍子１の切欠口11とに絶縁口６の挿
入口５を同一線上に合致させ、バイパス具Ｃの操作棒23
の螺杆22を切欠口11、挿入口５を通じて接続口４に螺合
して回動することにより、固定接触子21の上端を導体２
の角軸部９の下面に接触させてバイパス回路を構成して
バイパス給電を行うようになし、しかる後、絶縁筒６内
で本線接続具Ｂの絶縁接続筒16を回わしてねじ部13を接
続部３のねじ部７より外し、本線Ｄの導電性接続金具17
を接続部３の挿入孔８より軸方向に抜いて、本線Ｄ側の
機器類の点検、修理、工事を行う。本線接続具Ｂを外し
た導体２の接続部３のねじ部７には覆蓋30を螺合してお
く。According to the structure of the embodiment described above, inspection of the equipment on the main line side,
At the time of repair or the like, as shown in FIG. 2, the insulating tube 6 is rotated to align the insertion opening 5 of the insulation opening 6 with the connection opening 4 of the conductor 2 and the cutout opening 11 of the insulator 1, and bypass Tool C operating rod 23
The upper end of the fixed contact 21 is connected to the conductor 2 by screwing the screw rod 22 of the screw into the connection port 4 through the notch 11 and the insertion port 5 and rotating.
By making contact with the lower surface of the square shaft portion 9 to form a bypass circuit to perform bypass power feeding, the insulating connection cylinder 16 of the main line connector B is then rotated in the insulating cylinder 6 to turn the screw portion 13 Remove from the screw part 7 of the connection part 3, and the conductive connection fitting 17 of the main line D
Is pulled out from the insertion hole 8 of the connecting portion 3 in the axial direction, and inspection, repair and construction of the equipment on the main line D side are performed. A cover 30 is screwed onto the threaded portion 7 of the connecting portion 3 of the conductor 2 from which the main line connecting tool B is removed.
次に、本線の点検、修理等が終了した時、導体２の接続
部３のねじ部７の覆蓋30を外し、そのねじ部７に本線接
続具Ｂの絶縁接続筒16のねじ部13を螺合し、本線Ｄのテ
ーパー付き導電性接続金具17を導体２のテーパー付き挿
入孔８に嵌合し、スプリングワッシャ20等の付勢力で軸
方向に密嵌して本線からの給電を行う。しかる後に、バ
イパス具Ｃを導体２の接続口４より取外し、絶縁筒６を
回わして接続口４を閉じるものである。Next, when the inspection and repair of the main line are completed, the cover 30 of the screw part 7 of the connection part 3 of the conductor 2 is removed, and the screw part 13 of the insulation connection tube 16 of the main line connector B is screwed to the screw part 7. Then, the tapered conductive connecting fitting 17 of the main line D is fitted into the tapered insertion hole 8 of the conductor 2 and tightly fitted in the axial direction by the biasing force of the spring washer 20 or the like to supply power from the main line. Then, the bypass tool C is removed from the connection port 4 of the conductor 2, and the insulating cylinder 6 is rotated to close the connection port 4.
この考案によれば本線を導体に接離するとき、端子部保
護用の絶縁筒内で本線接続具の絶縁接続筒を回すだけ
で、導体の接続部と着脱するとともに高圧側の本線の接
続金具を接続部の挿入孔に軸方向に安全に挿脱すること
ができ、かつ、端子用碍子の導体よりバイパスをとると
き、絶縁筒を回わして接続口を開いてバイパス具を接続
口に安全かつ簡単に接続することができる。According to the present invention, when the main wire is connected to or separated from the conductor, the insulation connecting cylinder of the main wire connecting tool is simply rotated within the insulating cylinder for protecting the terminal portion to attach / detach the conductor connecting portion and to connect the main wire on the high voltage side. Can be safely inserted and removed in the insertion hole of the connection part in the axial direction, and when bypassing from the conductor of the terminal insulator, rotate the insulating tube to open the connection port and safely connect the bypass tool to the connection port. And easy to connect.
従って、この考案によれば、導体にバイパス具を接続し
てバイパス回路を構成してから、本線接続具の絶縁接続
筒を回わして導体の挿入孔より本線の先端の接続金具を
抜脱して取外し、変圧器の高圧側端子部において迅速、
確実、安全に無停電でバイパス給電を行い、かつ、高圧
本線側の機器類の点検、修理、工事を停電状態で安全に
行うことができる。Therefore, according to this invention, the bypass tool is connected to the conductor to form the bypass circuit, and then the insulating connection tube of the main line connecting tool is rotated to remove the connecting fitting at the tip of the main line from the insertion hole of the conductor. Quickly remove at the high voltage side terminal of the transformer,
Bypass power can be reliably and safely uninterrupted, and the inspection, repair, and construction of the equipment on the high-voltage mains side can be performed safely in a power failure state.
また、本線の先端のテーパー付き導電性接続金具の環状
ねじ部を絶縁接続筒の空間部に遊動自由に備えるととも
に環状ねじ部をスプリングワッシャ等ばねで付勢してあ
るので、導体テーパー付き挿入孔と軸芯を合致させてテ
ーパー面を確実に密着させ電気的に高信頼度の接続が得
られる。In addition, since the annular threaded portion of the tapered conductive connecting fitting at the end of the main line is provided freely in the space of the insulating connection tube and the annular threaded portion is biased by a spring such as a spring washer, the insertion hole with the conductor taper The taper surface can be surely brought into close contact by aligning the shaft center with the shaft core, and an electrically highly reliable connection can be obtained.
さらに既存の端子用絶縁碍子を利用することを可能とし
たので、バイパス機能を有しない既存の変圧器を容易に
バイパス機能化することが出来る。Further, since it is possible to use the existing insulator for terminals, it is possible to easily realize the bypass function of the existing transformer having no bypass function.
第１図は本線接続具接続時のこの考案の変圧器用分岐端
子部を示す縦断平面図、第２図は第１図のＸ−Ｘ線断面
図、第３図はバイパス具接続時の変圧器用分岐端子部を
示す縦断正面図、第４図は絶縁碍子、絶縁筒、本線接続
具およびバイパス具を示す斜視図である。 １……絶縁碍子、２……導体、３……接続部、４……接
続口、５……バイパス具用挿入口、６……絶縁筒、７…
…ねじ部、８……テーパー付き挿入孔、13……ねじ部、
14a……凹孔、15……挿通孔、16……絶縁接続筒、17…
…テーパー付き導電性接続金具、20……スプリングワッ
シャ、Ａ……配電用変圧器、Ｂ……本線接続具、Ｃ……
バイパス具、21……固定接触子、22……螺杆、23……操
作棒。FIG. 1 is a vertical plan view showing a transformer branch terminal portion of the present invention when the main line connecting device is connected, FIG. 2 is a sectional view taken along line XX of FIG. 1, and FIG. 3 is a transformer when connecting a bypass device. FIG. 4 is a vertical sectional front view showing a branch terminal portion, and FIG. 4 is a perspective view showing an insulator, an insulating tube, a main line connecting tool, and a bypass tool. 1 ... Insulator, 2 ... Conductor, 3 ... Connection part, 4 ... Connection port, 5 ... Bypass tool insertion port, 6 ... Insulation tube, 7 ...
… Screw part, 8 …… Tapered insertion hole, 13 …… Screw part,
14a ... Concave hole, 15 ... Insertion hole, 16 ... Insulation connection tube, 17 ...
… Tapered conductive fitting, 20 …… Spring washer, A …… Distribution transformer, B …… Main line connector, C ……
By-pass tool, 21 …… Fixed contact, 22 …… Screw rod, 23 …… Operating rod.
Claims (2)
導体（２）の接続部（３）にバイパス具（Ｃ）と接続口
（４）を穿設し、かつ、接続部（３）の先端にねじ部
（７）とテーパー付き挿入孔（８）を設け、別に一側の
前記ねじ部（７）に螺合させるねじ部（13）を設けた凹
孔（14a）と他側の本線（Ｄ）を挿入する挿通孔（15）
とを連通した本線接続具（Ｂ）の絶縁接続筒（16）を設
け、該凹孔（14a）に本線（Ｄ）の先端のテーパー付き
導電性接続金具（17）を内蔵させてばね（20）で軸方向
に付勢し、バイパス具用挿入口（５）を有する絶縁筒
（６）を導体（２）の接続部（３）と絶縁接続筒（16）
の外周に回動自由に遊嵌し、絶縁筒（６）のみ回してバ
イパス接続口（４）を開閉可能とし、かつ、絶縁接続筒
（16）を回して接続部（３）に着脱するとともに内部の
本線（Ｄ）の接続金具（17）を接続部（３）の挿入孔
（８）に挿脱可能としたことを特徴とする変圧器用分岐
端子部。1. A bypass tool (C) and a connection port (4) are bored in a connection part (3) of a conductor (2) inserted in an insulator (1) of a transformer (A), and the connection part is formed. A recessed hole (14a) provided with a threaded portion (7) and a tapered insertion hole (8) at the tip of (3) and a screwed portion (13) to be screwed into the threaded portion (7) on one side. Insertion hole (15) for inserting the other side main line (D)
An insulating connection cylinder (16) of the main line connector (B) communicating with the main line connector (B) is provided, and a tapered conductive connecting metal fitting (17) at the tip of the main line (D) is built in the recess (14a) to form a spring (20). ) Axially biases the insulating tube (6) having the bypass tool insertion port (5) to the connecting portion (3) of the conductor (2) and the insulating connecting tube (16).
It is freely rotatably fitted to the outer periphery of the bypass connector, and only the insulating cylinder (6) is rotated to open and close the bypass connection port (4), and the insulating connection cylinder (16) is rotated to attach / detach to / from the connecting part (3). A branch terminal part for a transformer, characterized in that a connection fitting (17) of an internal main line (D) can be inserted into and removed from an insertion hole (8) of a connection part (3).
のねじ部（13）付き凹孔（14a）の奥に空間部（19）を
設け、先端をテーパー状とし、かつ、本線（Ｄ）の芯線
を挿入拘着する接続金具（17）の基端の環状ねじ部（1
8）を空間部（19）に軸方向に移動可能に備え、環状ね
じ部（18）と凹孔との間にスプリングワッシャ（20）を
介在させた請求項１記載の変圧器用分岐端子部。2. An insulating connection tube (16) for the main line connector (B).
Providing a space (19) in the inner part of the recessed hole (14a) with the screw part (13), the tip is tapered, and the base end of the connecting fitting (17) for inserting and fixing the core wire of the main wire (D) Annular thread of (1
The branch terminal portion for a transformer according to claim 1, wherein the space portion (19) is axially movable and the spring washer (20) is interposed between the annular screw portion (18) and the recessed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989030742U JPH0745891Y2 (en) | 1989-03-17 | 1989-03-17 | Branch terminal for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989030742U JPH0745891Y2 (en) | 1989-03-17 | 1989-03-17 | Branch terminal for transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0319261U JPH0319261U (en) | 1991-02-26 |
| JPH0745891Y2 true JPH0745891Y2 (en) | 1995-10-18 |
Family
ID=31533449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989030742U Expired - Fee Related JPH0745891Y2 (en) | 1989-03-17 | 1989-03-17 | Branch terminal for transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0745891Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009299746A (en) * | 2008-06-11 | 2009-12-24 | Hiroyasu Minayoshi | Hole blocking-up embedded plug and hole blocking-up method using hole blocking-up embedded plug |
| KR101223097B1 (en) * | 2012-08-16 | 2013-01-17 | 극동일렉콤주식회사 | Cable penetration sealing system for shielding electromagnetic wave |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6119914U (en) * | 1984-07-11 | 1986-02-05 | 三菱電機株式会社 | Bushing with auxiliary terminal |
-
1989
- 1989-03-17 JP JP1989030742U patent/JPH0745891Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0319261U (en) | 1991-02-26 |
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