JP4549716B2 - Solid insulation unit, assembly apparatus therefor, and assembly method therefor - Google Patents

Solid insulation unit, assembly apparatus therefor, and assembly method therefor Download PDF

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JP4549716B2
JP4549716B2 JP2004108698A JP2004108698A JP4549716B2 JP 4549716 B2 JP4549716 B2 JP 4549716B2 JP 2004108698 A JP2004108698 A JP 2004108698A JP 2004108698 A JP2004108698 A JP 2004108698A JP 4549716 B2 JP4549716 B2 JP 4549716B2
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unit
support member
solid insulation
assembly
insulation unit
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JP2005295715A5 (en
JP2005295715A (en
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幸治 佐野
雅史 植主
祐一 山地
康裕 古閑
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Mitsubishi Electric Corp
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Description

本発明は、収納パネル内に断路器、遮断器、回路接続用の導体ユニットなどが配置されているスイッチギヤにおいて、収納パネルに設置される固体絶縁ユニット、この固体絶縁ユニットの組み立て装置、ならびにその組み立て方法に関する。   The present invention relates to a switchgear in which a disconnector, a circuit breaker, a conductor unit for circuit connection, and the like are arranged in a storage panel, a solid insulation unit installed in the storage panel, an assembly device for the solid insulation unit, and its It relates to the assembly method.

一般に、スイッチギヤにおいては、収納パネル内に断路器や遮断器、これらの機器間を電気的に接続するための固体絶縁ユニットなどが配置されている。そして、固体絶縁ユニットには、母線を接続する母線絶縁導体ユニットや、ケーブルの接続導体を上下選択して接続することが可能な分岐絶縁導体ユニットなどの種類がある。   Generally, in a switchgear, a disconnector, a circuit breaker, a solid insulation unit for electrically connecting these devices, and the like are disposed in a storage panel. The solid insulation unit includes types such as a bus insulated conductor unit that connects buses and a branch insulated conductor unit that can select and connect the connection conductors of the cable.

特に、上記の分岐絶縁導体ユニットには、エポキシ樹脂などでできた絶縁物の内部に導体をモールドし、この導体に交流の３相分のコンタクトを一体的に取り付けたものがある。このような分岐絶縁導体ユニットにおいて、例えば遮断器の接続端子を上記３相分の各コンタクトに整合して噛み合わせるためには、収納パネルを構成するフレームに対して分岐絶縁導体ユニットを予め精度良く位置決め固定しておく必要がある。   In particular, in the above-described branched insulated conductor unit, there is one in which a conductor is molded inside an insulator made of epoxy resin or the like, and contacts for AC three phases are integrally attached to this conductor. In such a branched insulated conductor unit, for example, in order to align and engage the connection terminal of the circuit breaker with each of the contacts for the three phases, the branched insulated conductor unit is accurately placed in advance on the frame constituting the storage panel. It is necessary to fix the positioning.

しかし、通常、スイッチギヤにおいては、収納パネルのフレームに対して分岐絶縁導体ユニットを位置決め固定する場合の基準位置を設定することが難しい。その対策として、従来、収納パネル内に配置する遮断器それ自身で位置決め調整する手段を設けたものがある（例えば特許文献１参照）。   However, normally, in the switchgear, it is difficult to set a reference position when the branch insulated conductor unit is positioned and fixed with respect to the frame of the storage panel. As a countermeasure, there has been conventionally provided a means for positioning and adjusting with the circuit breaker itself arranged in the storage panel (see, for example, Patent Document 1).

特開平６−７７０６８号公報JP-A-6-77068

しかしながら、従来のように、収納パネル内へ配置する遮断器それ自身で位置決めを調整する手段を設けたものでは、分岐絶縁導体ユニットの３相分の各コンタクトに遮断器の接続端子が整合して噛み合うように位置決め調整するのに非常に時間がかかり、作業効率が悪かった。   However, in the case where the means for adjusting the positioning is provided by the breaker itself arranged in the storage panel as in the prior art, the connection terminals of the breaker are aligned with the contacts for the three phases of the branched insulated conductor unit. It took a very long time to adjust the positioning so as to mesh with each other, and the work efficiency was poor.

本発明は、上記の課題を解決するためになされたもので、沿面絶縁性能が高い固体絶縁ユニット、およびこの固体絶縁ユニットを収納パネルに取り付ける際の組み立て作業を容易かつ精度良く行うための固体絶縁ユニットの組み立て装置、ならびにその組み立て方法を提供することを目的とする。   The present invention has been made to solve the above-described problems, and is a solid insulation unit having a high creepage insulation performance, and a solid insulation for easily and accurately performing assembly work when the solid insulation unit is attached to a storage panel. An object is to provide a unit assembling apparatus and a method for assembling the unit.

上記の目的を達成するために、本発明は、注型絶縁物で一体的にモールドした固体絶縁ユニットにおいて、当該ユニットを支持する支持部材に対向する側の一側面には、上記支持部材に当接固定される当接固定面が形成されるとともに、この当接固定面は、前記固体絶縁ユニットの長手方向の２箇所に設けられ、この当接固定面を除く面は上記支持部材から次第に遠ざかる離間面として形成されていることを特徴としている。 In order to achieve the above object, according to the present invention, in a solid insulation unit integrally molded with a casting insulator, one side surface of the solid insulation unit facing the support member that supports the unit is contacted with the support member. A contact fixing surface to be fixed in contact is formed, and the contact fixing surfaces are provided at two positions in the longitudinal direction of the solid insulating unit, and the surfaces other than the contact fixing surface gradually move away from the support member. It is characterized by being formed as a separation surface.

また、本発明は、請求項１記載の上記固体絶縁ユニットを上記支持部材に取り付けるために使用する組み立て装置として、上記固体絶縁ユニットの上記離間面とこの離間面に対向する上記支持部材の側面との間に介在されて両面に当接する位置規制部およびこの位置規制部から延設されて上記支持部材に取り付けられる取付部を有する組立補助部材を備えることを特徴としている。   Further, the present invention provides an assembly apparatus used for attaching the solid insulation unit according to claim 1 to the support member, and the separation surface of the solid insulation unit and a side surface of the support member facing the separation surface. It is characterized by comprising an assembly assisting member having a position restricting portion that is interposed between and abutting both surfaces and an attachment portion that extends from the position restricting portion and is attached to the support member.

さらに、本発明は、請求項２記載の組立補助部材を用いて請求項１記載の上記固体絶縁ユニットを上記支持部材に固定する組み立て方法として、上記組立補助部材の取付部を上記支持部材に取り付けるステップと、上記組立補助部材の位置規制部に上記固体絶縁ユニットの当接固定面を当接させた状態で当該固体絶縁ユニットを上記支持部材に固定するステップと、上記固体絶縁ユニットに接続導体を接続、固定するステップと、上記接続導体の固定後に上記組立補助部材を取り外すステップと、を含むことを特徴としている。   Furthermore, this invention attaches the attaching part of the said assembly auxiliary member to the said support member as an assembly method which fixes the said solid insulation unit of Claim 1 to the said support member using the assembly auxiliary member of Claim 2. A step of fixing the solid insulation unit to the support member in a state where the contact fixing surface of the solid insulation unit is in contact with the position restricting portion of the assembly auxiliary member; and a connection conductor to the solid insulation unit. Connecting and fixing, and removing the assembly auxiliary member after fixing the connection conductor.

本発明の固体絶縁ユニットは、当該ユニットを支持する支持部材に対向する側の一側面には、上記支持部材に当接固定される当接固定面が形成されるとともに、この当接固定面は、前記固体絶縁ユニットの長手方向の２箇所に設けられ、この当接固定面を除く面は上記支持部材から次第に遠ざかる離間面として形成されていることを特徴としているので、
離間面と支持部材との間に安定した絶縁空間を確保し、固体絶縁ユニットの沿面絶縁強度を高めることができる。 In the solid insulating unit of the present invention, a contact fixing surface that is in contact with and fixed to the support member is formed on one side facing the support member that supports the unit. The solid insulation unit is provided at two locations in the longitudinal direction, and the surfaces other than the contact fixing surface are formed as separation surfaces that gradually move away from the support member.
A stable insulating space can be secured between the spacing surface and the support member, and the creeping insulation strength of the solid insulating unit can be increased.

本発明の固体絶縁ユニットの組み立て装置によれば、固体絶縁ユニットの当接固定面の面積が小さいために、当接固定面を支持部材に当接固定する際の位置決めと保持とが困難な場合でも、組立補助部材を使用することで固体絶縁ユニットが位置規制されるため、支持部材への仮組み立てを容易に行うことができる。   According to the solid insulating unit assembly apparatus of the present invention, when the contact fixing surface of the solid insulating unit is small in area, it is difficult to position and hold the contact fixing surface in contact with the support member. However, since the position of the solid insulating unit is regulated by using the assembly auxiliary member, temporary assembly to the support member can be easily performed.

本発明の固体絶縁ユニットの組み立て方法によれば、固体絶縁ユニットの支持部材への位置決めと保持とを極めて簡単に、かつ精度良く行うことができる。したがって、従来に比較して、固体絶縁ユニットの組立作業時間、および固体絶縁ユニットの位置決めのための調整時間を大幅に短縮することが可能になる。   According to the method for assembling the solid insulation unit of the present invention, positioning and holding of the solid insulation unit on the support member can be performed extremely simply and with high accuracy. Therefore, it is possible to significantly reduce the assembly work time of the solid insulation unit and the adjustment time for positioning the solid insulation unit as compared with the conventional case.

実施の形態１．
図１は本発明の実施の形態１におけるスイッチギヤの要部構成を示す縦断面図、図２は図１のＡ−Ａ線に沿う断面図である。また、図３は分岐絶縁導体ユニットの横フレームへの取り付け状態を示す平面図、図４は図３のＢ−Ｂ線に沿う断面図、図５は図３のＣ−Ｃ線に沿う断面図である。さらに、図６は分岐絶縁導体ユニットの注型絶縁物にモールドされる埋金を示す図である。 Embodiment 1 FIG.
FIG. 1 is a longitudinal sectional view showing a main configuration of a switchgear according to Embodiment 1 of the present invention, and FIG. 2 is a sectional view taken along the line AA in FIG. 3 is a plan view showing a state where the branch insulated conductor unit is attached to the horizontal frame, FIG. 4 is a cross-sectional view taken along line BB in FIG. 3, and FIG. 5 is a cross-sectional view taken along line CC in FIG. It is. Furthermore, FIG. 6 is a view showing a buried metal molded on the cast insulator of the branched insulated conductor unit.

この実施の形態１において、スイッチギヤ１は収納パネル２を有し、この収納パネル２には、その内部を上部室２ａと下部室２ｂとに区分する床板３が設けられている。   In the first embodiment, the switch gear 1 has a storage panel 2, and the storage panel 2 is provided with a floor plate 3 that divides the interior into an upper chamber 2a and a lower chamber 2b.

そして、上部室２ａ内には、床板３の上に遮断器５が設置され、さらに遮断器５の上方には固体絶縁ユニットとして、母線６を連結する母線絶縁導体ユニット７、および遮断器５の接続端子や後述の接続導体９を連結する分岐絶縁導体ユニット１０が配置されている。   And in the upper chamber 2a, the circuit breaker 5 is installed on the floor board 3, Furthermore, the bus-insulated conductor unit 7 which connects the bus-line 6 as a solid insulation unit above the circuit breaker 5, and the circuit breaker 5 A branched insulated conductor unit 10 for connecting connection terminals and connection conductors 9 described later is disposed.

遮断器５は、台車５ａに設けた車輪５ｂによって引き出し可能になっており、遮断器５の遮断部５ｃは、台車５ａに対して昇降可能に構成されている。そして、遮断部５ｃを上昇させることにより遮断器５の各接続端子が母線絶縁導体ユニット７および分岐絶縁導体ユニット１０に設けられている各コンタクトに接続されるようになっている。   The circuit breaker 5 can be pulled out by a wheel 5b provided on the cart 5a, and the circuit breaker 5c of the circuit breaker 5 is configured to be movable up and down with respect to the cart 5a. And by raising the interruption | blocking part 5c, each connection terminal of the circuit breaker 5 is connected to each contact provided in the bus-bar insulated conductor unit 7 and the branch insulated conductor unit 10. FIG.

一方、下部室２ｂにはケーブル１３が基礎側から内部に引き込まれ、ケーブル端子１４、２つの接続導体８，９を介して分岐絶縁導体ユニット１０に接続されている。２つの接続導体８，９の内、下側の接続導体８は、下部室２ｂ内に取り付けた碍子１５を介して強固に保持されている。また、他方の接続導体９は、導電性の丸棒の外周を絶縁したものであり、床板３を上下に貫通して設けられており、その上下の各端部が分岐絶縁導体ユニット１０と接続導体８にそれぞれボルトで強固に接続されている。   On the other hand, the cable 13 is drawn into the lower chamber 2b from the base side and is connected to the branched insulated conductor unit 10 via the cable terminal 14 and the two connection conductors 8 and 9. Of the two connection conductors 8 and 9, the lower connection conductor 8 is firmly held via an insulator 15 attached in the lower chamber 2b. The other connecting conductor 9 is an insulating outer periphery of a conductive round bar, and is provided so as to penetrate the floor plate 3 up and down, and its upper and lower ends are connected to the branch insulated conductor unit 10. Each of the conductors 8 is firmly connected with a bolt.

分岐絶縁導体ユニット１０は、収納パネル２を構成する支持部材としての横フレーム１６に取り付けられている。そして、この分岐絶縁導体ユニット１０は、エポキシ樹脂等でできた注型絶縁物１７の内部に３相分の導体１８がモールドされている。また、注型絶縁物１７の３箇所には、上下に対向した差込穴１７ａ，１７ｂ、およびこれらの差込穴１７ａ，１７ｂに隣接した差込穴１７ｃがそれぞれ形成されており、下方に開口した一方の差込穴１７ａには前述の接続導体９の一端が差し込まれて導体１８にボルトで固定され、また他方の差込穴１７ｃには遮断器５の接続端子が差し込まれて導体１８に設けたコンタクト１８ａに接続されている。   The branched insulated conductor unit 10 is attached to a horizontal frame 16 as a support member constituting the storage panel 2. The branched insulated conductor unit 10 has a three-phase conductor 18 molded in a cast insulator 17 made of epoxy resin or the like. In addition, insertion holes 17a and 17b that are vertically opposed to each other and insertion holes 17c adjacent to these insertion holes 17a and 17b are formed at three locations on the casting insulator 17, and open downward. One end of the connection conductor 9 is inserted into one insertion hole 17a and fixed to the conductor 18 with a bolt, and the connection terminal of the circuit breaker 5 is inserted into the other insertion hole 17c. It is connected to the provided contact 18a.

また、分岐絶縁導体ユニット１０の注型絶縁物１７の横フレーム１６と対向する側の一側面には、横フレーム１６に当接固定される当接固定面１７ｄが形成されるとともに、この当接固定面１７ｄを除く面は横フレーム１６から次第に遠ざかる方向に傾斜した離間面１７ｅとして形成されている。さらに、注型絶縁物１７には左右２箇所に当該ユニット１０取付用の埋金２１が一体にモールドされており、各埋金２１にはネジ止め用の上下一対の雌ネジ部２１ａが形成されていて、各雌ネジ部２１ａが注型絶縁物１７の当接固定面１７ｄに露出している。   In addition, a contact fixing surface 17d that contacts and is fixed to the lateral frame 16 is formed on one side surface of the branch insulating conductor unit 10 on the side facing the lateral frame 16 of the casting insulator 17, and this contact The surfaces other than the fixed surface 17d are formed as a separation surface 17e inclined in a direction gradually moving away from the horizontal frame 16. Further, the casting insulator 17 is integrally molded with a buried metal 21 for mounting the unit 10 at two locations on the left and right sides, and each buried metal 21 is formed with a pair of upper and lower female screw portions 21a for screwing. In addition, each female screw portion 21 a is exposed on the contact fixing surface 17 d of the casting insulator 17.

横フレーム１６の分岐絶縁導体ユニット１０の当接固定面１７ｄと対向する側部には、埋金２１の各雌ネジ部２１ａに対応してネジ挿通穴（図示せず）が予め形成されており、このネジ挿通用穴を通してネジ２２を差し込んで雌メジ部２１ａに螺合することで、分岐絶縁導体ユニット１０が横フレーム１６に固定されている。また、横フレーム１６の上部および下部の長手方向に沿う２箇所には、後述の挟込治具２６，２７を固定するためのネジ孔１６ｂが形成されている。   A screw insertion hole (not shown) is formed in advance on the side portion of the horizontal frame 16 facing the contact fixing surface 17d of the branched insulated conductor unit 10 so as to correspond to each female screw portion 21a of the buried metal 21. The branch insulated conductor unit 10 is fixed to the horizontal frame 16 by inserting the screw 22 through the screw insertion hole and screwing the screw 22 into the female medium portion 21a. Further, screw holes 16b for fixing sandwiching jigs 26 and 27 described later are formed at two locations along the longitudinal direction of the upper and lower portions of the horizontal frame 16.

したがって、分岐絶縁導体ユニット１０は、注型絶縁物１７の当接固定面１７ｄと埋金２１のみが横フレーム１６の側面に当接しており、注型絶縁物１７に設けられた埋金２１とこれに螺合されたネジ２２により横フレーム１６に固定されている。この状態において、注型絶縁物１７の離間面１７ｅと横フレーム１６の外側面１６ａとの間には末広がり状の絶縁空間２３が確保されているため、分岐絶縁導体ユニット１０の沿面絶縁強度を高めることができ、スイッチギヤ１をコンパクトに構成するのに役立っている。なお、母線絶縁導体ユニット７についても注型絶縁物が分岐絶縁導体ユニット１０のものと略同じ構成となっているので、沿面絶縁強度を高めることができる。 Therefore, in the branched insulated conductor unit 10, only the contact fixing surface 17 d of the casting insulator 17 and the buried metal 21 are in contact with the side surface of the horizontal frame 16. It is fixed to the horizontal frame 16 by screws 22 screwed into this. In this state, since a diverging insulating space 23 is secured between the separation surface 17e of the casting insulator 17 and the outer surface 16a of the lateral frame 16, the creeping insulation strength of the branched insulated conductor unit 10 is increased. This is useful for making the switchgear 1 compact. Since cast insulators also busbar insulated conductor unit 7 are substantially the same configuration as that of the minute岐絶edge conductor unit 10, it is possible to increase the creepage insulation strength.

また、分岐絶縁導体ユニット１０は、上記のようして横フレーム１６にネジ２２で固定保持されるとともに、遮断器５の接続端子との接続および接続導体９との接続により、組み立てが完了した後は、後述する挟込治具２６，２７を取り外した場合でも取り付け位置がずれることはなく、確実強固にその位置に保持される。   Further, the branch insulated conductor unit 10 is fixedly held to the horizontal frame 16 with the screw 22 as described above, and after the assembly is completed by the connection with the connection terminal of the circuit breaker 5 and the connection conductor 9. Even if the clamping jigs 26 and 27, which will be described later, are removed, the mounting position does not shift and is securely held at that position.

図７は組み立て装置を用いて分岐絶縁導体ユニット１０を横フレーム１６に取り付ける状態の平面図、図８は図７のＤ−Ｄ線の沿う断面図、図９は図７のＥ−Ｅ線に沿う断面図である。   7 is a plan view showing a state in which the branch insulated conductor unit 10 is attached to the horizontal frame 16 using an assembling apparatus, FIG. 8 is a sectional view taken along the line DD in FIG. 7, and FIG. 9 is taken along the line EE in FIG. It is sectional drawing which follows.

分岐絶縁導体ユニット１０を横フレーム１６に位置決め固定するために使用する組み立て装置２５は、横フレーム１６を挟持する上下一対の挟込治具２６，２７を備える。各挟込治具２６，２７は、特許請求の範囲における組立補助部材に相当するもので、互いに直交配置された位置規制部２６ａ，２７ａと取付部２ｂ，２７ｂとによって断面略Ｌ字形に形成されている。そして、位置規制部２６ａ，２７ａは、分岐絶縁導体ユニット１０の離間面１７ｅと横フレーム１６の外側面１６ａとの間に介在されて両面１７ｅ，１６ａに当接するように先細り状に形成されており、この位置規制部２６ａ，２７ａには各埋金２１の位置に対応してＵ字形をしたネジ挿入用の切り込み２６ｃ，２７ｃが形成されている。また、取付部２６ｂ，２７ｂには、横フレーム１６に設けた２つのネジ孔に対応した位置に取付穴（図示せず）がそれぞれ形成されている。   The assembling apparatus 25 used for positioning and fixing the branched insulated conductor unit 10 to the horizontal frame 16 includes a pair of upper and lower clamping jigs 26 and 27 that clamp the horizontal frame 16. Each of the sandwiching jigs 26 and 27 corresponds to an assembly assisting member in the claims, and is formed in a substantially L-shaped cross section by the position restricting portions 26a and 27a and the mounting portions 2b and 27b arranged orthogonal to each other. ing. The position restricting portions 26a and 27a are formed in a tapered shape so as to be interposed between the separation surface 17e of the branched insulated conductor unit 10 and the outer surface 16a of the lateral frame 16 so as to contact the both surfaces 17e and 16a. The position restricting portions 26a and 27a are formed with U-shaped notches 26c and 27c for screw insertion corresponding to the positions of the respective buried metal 21. In addition, attachment holes (not shown) are formed in the attachment portions 26b and 27b at positions corresponding to the two screw holes provided in the horizontal frame 16, respectively.

次に、上記構成の組み立て装置２５を用いて、収納パネル２の横フレーム１６に対して分岐絶縁導体ユニット１０を位置決め固定する場合の組み立て手順について説明する。   Next, an assembly procedure for positioning and fixing the branched insulated conductor unit 10 with respect to the lateral frame 16 of the storage panel 2 using the assembly device 25 having the above configuration will be described.

まず、横フレーム１６の各ネジ孔１６ｂに各挟込治具２６，２７の取付穴が合致するように挟込治具２６，２７を設置した後、ボルト２９を用いて各挟込治具２６，２７の各取付部２６ｂ，２７ｂを横フレーム１６に固定する。   First, the clamping jigs 26, 27 are installed so that the mounting holes of the clamping jigs 26, 27 are aligned with the screw holes 16 b of the horizontal frame 16, and then the clamping jigs 26 using the bolts 29. , 27 are fixed to the horizontal frame 16.

次に、分岐絶縁導体ユニット１０の注型絶縁物１７の離間面１７ｅを各挟込治具２６，２７の位置規制部２６ａ，２７ａの側面に押し当てつつ、埋金２１の雌ネジ部２１ａが挟込治具２６，２７の切り込み２６ｃ，２７ｃを通して横フレーム１６のネジ挿通用穴に臨むようにする。そして、ネジ２２を雌メジ部２１ａに螺合することで、分岐絶縁導体ユニット１０を横フレーム１６に固定する。 Next, the female screw portion 21a of the buried metal 21 is pressed while pressing the separation surface 17e of the casting insulator 17 of the branch insulated conductor unit 10 against the side surfaces of the position restricting portions 26a, 27a of the sandwiching jigs 26, 27. It faces the screw insertion hole of the lateral frame 16 through the notches 26c and 27c of the sandwiching jigs 26 and 27. Then, the branch insulated conductor unit 10 is fixed to the horizontal frame 16 by screwing the screw 22 into the female medium portion 21a.

その際、各挟込治具２６，２７の位置規制部２６ａ，２７ａが分岐絶縁導体ユニット１０の離間面１７ｅと横フレーム１６の外側面１６ａとの間に介在されて両面１７ｅ，１６ａに当接するため、分岐絶縁導体ユニット１０の重量が比較的大きく、また、当接固定面１７ｅの横フレーム１６に対する接触面積が小さい場合でも、締結作業時に分岐絶縁導体ユニット１０が不要な横振れを起こすことなく容易に横フレーム１６に対して精度良く位置決め固定することができる。   At that time, the position restricting portions 26a and 27a of the sandwiching jigs 26 and 27 are interposed between the separation surface 17e of the branched insulated conductor unit 10 and the outer surface 16a of the lateral frame 16 and come into contact with both surfaces 17e and 16a. Therefore, even when the weight of the branched insulated conductor unit 10 is relatively large and the contact area of the contact fixing surface 17e with the lateral frame 16 is small, the branched insulated conductor unit 10 does not cause unnecessary lateral vibration during fastening work. It can be easily positioned and fixed with respect to the horizontal frame 16 with high accuracy.

このようにして、分岐絶縁導体ユニット１０を横フレーム１６に固定した後は、差込穴１７ａに前述の接続導体９の一端が差し込まれてボルトで固定され、また、遮断器５の遮断部５ｃを上昇させることによりその接続端子が分岐絶縁導体ユニット１０の導体１８に接続される。   After the branch insulated conductor unit 10 is fixed to the horizontal frame 16 in this way, one end of the connecting conductor 9 is inserted into the insertion hole 17a and fixed with a bolt, and the breaking portion 5c of the circuit breaker 5 is fixed. Is connected to the conductor 18 of the branched insulated conductor unit 10.

次に、ボルト２９を緩めて上下の各挟込治具２６，２７を横フレーム１６から取り外す。各挟込治具２６，２７を横フレーム１６から取り外した場合でも、分岐絶縁導体ユニット１０は横フレーム１６、遮断器５の接続端子、および接続導体９により支持されているため取り付け位置がずれることはなく、確実強固にその位置に保持される。   Next, the bolt 29 is loosened and the upper and lower clamping jigs 26 and 27 are removed from the horizontal frame 16. Even when each of the sandwiching jigs 26 and 27 is removed from the horizontal frame 16, the branch insulated conductor unit 10 is supported by the horizontal frame 16, the connection terminal of the circuit breaker 5, and the connection conductor 9. There is no, and it is securely held in that position.

以上のように、この実施の形態１では、分岐絶縁導体ユニット１０の横フレーム１６への位置決めと保持とを極めて簡単に、かつ精度良く行うことができるので、従来に比較して、分岐絶縁導体ユニット１０の収納パネル２への組立作業時間、および分岐絶縁導体ユニット１０の位置決めのための調整時間を大幅に短縮することが可能になる。   As described above, in the first embodiment, the branch insulated conductor unit 10 can be positioned and held on the horizontal frame 16 very easily and with high accuracy. The assembly time for the unit 10 to the storage panel 2 and the adjustment time for positioning the branch insulated conductor unit 10 can be greatly reduced.

上記の実施の形態１では、分岐絶縁導体ユニット１０の注型絶縁物１７の当接固定面１７ｄは、横フレーム１６への接触面積が有る程度の大きさになるように形成されているが、接触面積がさらに小さくて横フレーム１６に対して点状に接触するものであってもよい。また、この実施の形態１では、注型絶縁物１７の離間面１７ｅは横フレーム１６の外側面１６ａから次第に遠ざかる方向にテーパー状に傾斜するように形成しているが、この離間面１７ｅは、図１０（ａ）に示すように円弧状でもよく、また、図１０（ｂ）に示すように階段状のものや、あるいは図１０（ｃ）に示すように傾斜面と段差とを組み合わせた形状のものであってもよい。   In the first embodiment, the contact fixing surface 17d of the casting insulator 17 of the branched insulated conductor unit 10 is formed so as to have a contact area with the horizontal frame 16, The contact area may be smaller and contact the horizontal frame 16 in a dot shape. Further, in the first embodiment, the separation surface 17e of the casting insulator 17 is formed so as to be inclined in a taper shape in a direction gradually moving away from the outer surface 16a of the horizontal frame 16. As shown in FIG. 10 (a), it may be arcuate, or it may be stepped as shown in FIG. 10 (b), or a combination of inclined surfaces and steps as shown in FIG. 10 (c). It may be.

また、上記の実施の形態１では、分岐絶縁導体ユニット１０を横フレーム１６に取り付ける際に一対の挟込治具２６，２７をボルト２９で位置決め固定しているが、これに限らず、例えば、図１１に示すように、挟込治具２６の取付部２６ａに所定長さを有する位置決め用のアーム３０を溶接等によって一体的に固定し、このアーム３０の端部にクランプ手段３１を設けて組み立て装置を構成することも可能である。   In the first embodiment, when the branch insulated conductor unit 10 is attached to the horizontal frame 16, the pair of sandwiching jigs 26 and 27 are positioned and fixed by the bolts 29. As shown in FIG. 11, a positioning arm 30 having a predetermined length is integrally fixed to the attachment portion 26 a of the clamping jig 26 by welding or the like, and a clamp means 31 is provided at the end of the arm 30. It is also possible to construct an assembly device.

この構成の組み立て装置によれば、挟込治具２６のアーム３０をクランプ手段３１によって収納パネル２の縦フレーム３２に固定することで、挟込治具２６を簡単に位置決めすることができ、分岐絶縁導体ユニット１０の横フレーム１６への組み立てがさらに一層容易に行えるようになる。   According to the assembling apparatus having this configuration, the clamping jig 26 can be easily positioned by fixing the arm 30 of the clamping jig 26 to the vertical frame 32 of the storage panel 2 by the clamping means 31. Assembling of the insulated conductor unit 10 to the horizontal frame 16 can be performed even more easily.

また、上記の実施の形態１では、分岐絶縁導体ユニット１０を収納パネル２に位置決め固定する場合について説明したが、本発明はこれに限るものではなく、母線絶縁導体ユニット７を収納パネル２に精度良く位置決め固定したい場合にも適用することができる。   In the first embodiment, the case where the branch insulated conductor unit 10 is positioned and fixed to the storage panel 2 has been described. However, the present invention is not limited to this, and the bus bar insulated conductor unit 7 is attached to the storage panel 2 with accuracy. It can also be applied to the case where it is desired to position and fix well.

本発明の実施の形態１におけるスイッチギヤの要部構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the principal part structure of the switchgear in Embodiment 1 of this invention. 図１のＡ−Ａ線に沿う断面図である。It is sectional drawing which follows the AA line of FIG. 分岐絶縁導体ユニットの横フレームへの取り付け状態を示す平面図である。It is a top view which shows the attachment state to the horizontal frame of a branch insulated conductor unit. 図３のＢ−Ｂ線に沿う断面図である。It is sectional drawing which follows the BB line of FIG. 図３のＣ−Ｃ線に沿う断面図である。It is sectional drawing which follows the CC line of FIG. 分岐絶縁導体ユニットの注型絶縁物にモールドされる埋金を示す図である。It is a figure which shows the buried metal molded by the casting insulator of a branch insulated conductor unit. 組み立て装置を用いて分岐絶縁導体ユニットを横フレームに取り付ける状態の平面図である。It is a top view of the state which attaches a branch insulated conductor unit to a horizontal frame using an assembly apparatus. 図７のＤ−Ｄ線の沿う断面図である。It is sectional drawing which follows the DD line | wire of FIG. 図７のＥ−Ｅ線に沿う断面図である。It is sectional drawing which follows the EE line | wire of FIG. 分岐絶縁導体ユニットの変形例を示す正面図である。It is a front view which shows the modification of a branch insulated conductor unit. 分岐絶縁導体ユニットを横フレームに取り付ける場合の組み立て装置の変形例を示す斜視図である。It is a perspective view which shows the modification of the assembly apparatus in the case of attaching a branch insulated conductor unit to a horizontal frame.

１ スイッチギヤ、２ 収納パネル、５ 遮断器、７ 母線絶縁導体ユニット、
１０ 分岐絶縁導体ユニット、１６ 横フレーム（支持部材）、１７ 注型絶縁物、
１７ｄ 当接固定面、１７ｅ 離間面、１８ 導体、２５ 組み立て装置、
２６，２７ 挟込治具（組立補助部材）、２６ａ，２７ａ 位置規制部、
２６ｂ，２７ｂ 取付部。 1 switchgear, 2 storage panel, 5 circuit breaker, 7 busbar insulated conductor unit,
10 branch insulated conductor unit, 16 horizontal frame (support member), 17 cast insulator,
17d contact fixing surface, 17e separation surface, 18 conductors, 25 assembly device,
26, 27 Clamping jig (assembly assisting member), 26a, 27a Position restricting portion,
26b, 27b Mounting part.

Claims (3)

注型絶縁物で一体的にモールドした固体絶縁ユニットにおいて、当該ユニットを支持する支持部材に対向する側の一側面には、上記支持部材に当接固定される当接固定面が形成されるとともに、
この当接固定面は、前記固体絶縁ユニットの長手方向の２箇所に設けられ、
上記当接固定面を除く面は上記支持部材から次第に遠ざかる離間面として形成されていることを特徴とする固体絶縁ユニット。 In the solid insulation unit molded integrally with the casting insulator, a contact fixing surface that is contacted and fixed to the support member is formed on one side surface facing the support member that supports the unit. ,
The contact fixing surfaces are provided at two locations in the longitudinal direction of the solid insulating unit,
The solid insulating unit is characterized in that the surfaces other than the contact fixing surface are formed as separation surfaces that gradually move away from the support member. 請求項１記載の固体絶縁ユニットを上記支持部材に取り付けるために使用される組み立て装置であって、上記固体絶縁ユニットの上記離間面とこの離間面に対向する上記支持部材の側面との間に介在されて両面に当接する位置規制部およびこの位置規制部から延設されて上記支持部材に取り付けられる取付部を有する組立補助部材を備えることを特徴とする固体絶縁ユニットの組み立て装置。 The assembly apparatus used for attaching the solid insulation unit according to claim 1 to the support member, wherein the solid insulation unit is interposed between the separation surface of the solid insulation unit and a side surface of the support member facing the separation surface. An assembly apparatus for a solid insulation unit, comprising: an assembly assisting member having a position restricting portion that comes into contact with both surfaces and an attachment portion that extends from the position restricting portion and is attached to the support member. 請求項２記載の組み立て装置を用いて請求項１記載の固体絶縁ユニットを上記支持部材に固定する組み立て方法であって、上記組立補助部材の取付部を上記支持部材に取り付けるステップと、上記組立補助部材の位置規制部に上記固体絶縁ユニットの当接固定面を当接させた状態で当該固体絶縁ユニットを上記支持部材に固定するステップと、上記固体絶縁ユニットに接続導体を接続、固定するステップと、上記接続導体の固定後に上記組立補助部材を取り外すステップと、を含むことを特徴とする固体絶縁ユニットの組み立て方法。 An assembly method for fixing the solid insulating unit according to claim 1 to the support member using the assembly apparatus according to claim 2, wherein a step of attaching an attachment portion of the assembly auxiliary member to the support member; Fixing the solid insulation unit to the support member in a state where the contact fixing surface of the solid insulation unit is in contact with the position regulating portion of the member; and connecting and fixing a connection conductor to the solid insulation unit; And a step of removing the assembly auxiliary member after the connection conductor is fixed.
JP2004108698A 2004-04-01 2004-04-01 Solid insulation unit, assembly apparatus therefor, and assembly method therefor Expired - Lifetime JP4549716B2 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0556529A (en) * 1991-08-27 1993-03-05 Toshiba Corp Conductor connector
JPH07115714A (en) * 1993-10-14 1995-05-02 Toshiba Corp Metal enclosed switchgear
JP2002135921A (en) * 2000-10-26 2002-05-10 Mitsubishi Electric Corp Gas insulated switchgear and its resin molded bushing
JP2004153881A (en) * 2002-10-29 2004-05-27 Mitsubishi Electric Corp Opening/closing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0556529A (en) * 1991-08-27 1993-03-05 Toshiba Corp Conductor connector
JPH07115714A (en) * 1993-10-14 1995-05-02 Toshiba Corp Metal enclosed switchgear
JP2002135921A (en) * 2000-10-26 2002-05-10 Mitsubishi Electric Corp Gas insulated switchgear and its resin molded bushing
JP2004153881A (en) * 2002-10-29 2004-05-27 Mitsubishi Electric Corp Opening/closing device

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