JP2008171673A - Ground side arc horn device - Google Patents

Ground side arc horn device Download PDF

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Publication number
JP2008171673A
JP2008171673A JP2007003554A JP2007003554A JP2008171673A JP 2008171673 A JP2008171673 A JP 2008171673A JP 2007003554 A JP2007003554 A JP 2007003554A JP 2007003554 A JP2007003554 A JP 2007003554A JP 2008171673 A JP2008171673 A JP 2008171673A
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horn
side arc
arc horn
earth
grounding side
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JP2007003554A
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JP4676446B2 (en
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Hiroyuki Uino
弘幸 宇井野
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Furukawa Electric Co Ltd
Fujikura Ltd
Viscas Corp
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Furukawa Electric Co Ltd
Fujikura Ltd
Viscas Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To enable to easily carry out works adjusting a protrusion length of a grounding side arc horn from the lower end of a horn support metal fitting 33 or measuring a horn interval, and, enable to have the grounding side arc horn shorter than before, in a grounding side arc horn device equipped with a horn support metal fitting 33 extended downward from coupling metal fittings 17 coupling strain insulator series 13 with a steel tower arm 11 and the grounding side arc horn 35 mounted on the horn support metal fitting 33 in free adjustment in an up-and-down direction. <P>SOLUTION: By making a mounting angle of the grounding side arc horn 35 on the horn support metal fitting adjustable within a vertical plane of the strain insulator series 13 in an axis direction, a position of the lower end of the grounding side arc horn 35 can be freely adjusted in a direction of the strain insulator series. The lower end of the grounding side arc horn 35 can be positioned nearly right above a jumper side arc horn 37. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、架空送電線の耐張鉄塔部においてジャンパ側アークホーンと対向するように設置されるアース側アークホーン装置に関するものである。   The present invention relates to an earth-side arc horn device installed so as to face a jumper-side arc horn in a tension steel tower portion of an overhead power transmission line.

アース側アークホーン装置の使用状態を図４に示す。図において、１１は耐張鉄塔のアーム、１３は耐張碍子連、１５は架空送電線、１７は耐張碍子連１３を鉄塔アーム１１に連結する連結金具（具体的にはヨーク）、１９は架空送電線１５を引き留める引留めクランプ、２１は引留めクランプ１９を耐張碍子連１３に引き留める引留め金具、２３は鉄塔の両側の架空送電線１５、１５を電気的に接続するパイプ式ジャンパ装置である。パイプ式ジャンパ装置２３は、水平配置された２本のパイプ導体２５と、２本のパイプ導体２５の間隔を平行に保持するスペーサ２７と、パイプ導体２５の両端付近のスペーサ２７と前記引留め金具２１とを連結する吊下げ棒２９と、パイプ導体２５の端部と引留めクランプ１９とを接続するジャンパ線３１などから構成されている。   The use state of the earth side arc horn apparatus is shown in FIG. In the figure, 11 is an arm of a tension steel tower, 13 is a tension insulator series, 15 is an aerial transmission line, 17 is a connecting fitting (specifically a yoke) for connecting the tension insulator series 13 to the tower arm 11, and 19 is A retaining clamp for retaining the overhead power transmission line 15, a retaining bracket 21 for retaining the retaining clamp 19 to the tension insulator 13, and a pipe type jumper device 23 for electrically connecting the overhead power transmission lines 15 and 15 on both sides of the steel tower. It is. The pipe-type jumper device 23 includes two horizontally disposed pipe conductors 25, a spacer 27 that keeps the distance between the two pipe conductors 25 in parallel, a spacer 27 near both ends of the pipe conductor 25, and the retaining metal fitting. 21, a hanging rod 29 that couples 21, a jumper wire 31 that connects the end of the pipe conductor 25 and the retaining clamp 19, and the like.

上記のように構成された架空送電線の耐張鉄塔部において、連結金具１７には下方へ延びだすホーン支持金具３３が一体に設けられており、このホーン支持金具３３にアース側アークホーン３５が下向きに取り付けられている。一方、アース側アークホーン３５の直下の、パイプ導体２５の中間を把持するスペーサ２７には、ジャンパ側アークホーン３７が上向きに取り付けられている（特許文献１の図４（ニ）参照）。アース側アークホーン３５とジャンパ側アークホーン３７は、架空送電線１５に誘起された異常高電圧（雷サージ電圧など）を、両者間の放電によりアース側に逃して、送電線路全体の絶縁協調を図るためのものである。このため、アース側アークホーン３５の下端とジャンパ側アークホーン３７の上端との間隔Ｇは、両者間が所定の電圧以上になるとアーク放電が発生するように規定の間隔に正確に設定する必要がある。   In the tension tower of the overhead power transmission line configured as described above, the connecting bracket 17 is integrally provided with a horn support bracket 33 extending downward, and the earth-side arc horn 35 is connected to the horn support bracket 33. It is attached downward. On the other hand, a jumper-side arc horn 37 is attached upward to a spacer 27 that grips the middle of the pipe conductor 25 immediately below the earth-side arc horn 35 (see FIG. 4D of Patent Document 1). The earth-side arc horn 35 and the jumper-side arc horn 37 allow an abnormally high voltage (such as a lightning surge voltage) induced in the overhead power transmission line 15 to escape to the ground side due to a discharge between the two, thereby performing insulation coordination of the entire transmission line. It is for illustration. For this reason, the gap G between the lower end of the earth-side arc horn 35 and the upper end of the jumper-side arc horn 37 needs to be accurately set to a prescribed interval so that arc discharge occurs when the voltage between both ends exceeds a predetermined voltage. is there.

ホーン支持金具３３とアース側アークホーン３５で構成されるアース側アークホーン装置３９は、従来、図５のような構成となっている。すなわち、ホーン支持金具３３の下端部にホーン取付け用の補助金具４１をボルトナット４３により取り付け、この補助金具４１にアース側アークホーン３５をボルトナット４５により取り付けた構成となっている。アース側アークホーン３５は細長い板状で、長手方向に所定の間隔をおいて多数のボルト穴４７を形成したものである。これによりアース側アークホーン３５は、補助金具４１に取り付ける際にボルト穴４７を選択することで、ホーン支持金具３３の下端からの突出長さを調整し、前記ホーン間隔Ｇを規定の間隔に設定できるようになっている。   An earth-side arc horn device 39 composed of the horn support fitting 33 and the earth-side arc horn 35 is conventionally configured as shown in FIG. That is, the auxiliary metal fitting 41 for horn attachment is attached to the lower end portion of the horn support metal fitting 33 by the bolt nut 43, and the earth side arc horn 35 is attached to the auxiliary metal fitting 41 by the bolt nut 45. The earth-side arc horn 35 has a long and narrow plate shape, and has a large number of bolt holes 47 formed at predetermined intervals in the longitudinal direction. Thereby, the earth side arc horn 35 adjusts the protrusion length from the lower end of the horn support metal fitting 33 by selecting the bolt hole 47 when attaching to the auxiliary metal fitting 41, and sets the horn interval G to a specified interval. It can be done.

特開２００６−２４６６３５号公報JP 2006-246635 A

耐張鉄塔部における耐張碍子連のカテナリー角α（図４参照）は、送電線路の地形の起伏などによって変化する。従来のアース側アークホーン装置は、連結金具と一体に設けられたホーン支持金具に、アース側アークホーンを固定した構造であるため、カテナリー角αが変わると、アース側アークホーンの傾き角が変わり、アース側アークホーンの下端が耐張碍子連方向にずれて、ホーン間隔Ｇが変化することになる。そこで、耐張碍子連のカテナリー角αが普通の角度（アース側アークホーンの下端がジャンパ側アークホーンの真上にくる角度）より大きい（又は小さい）場合にはアース側アークホーンの突出長さを長くして規定のホーン間隔を確保するようにしている。   The catenary angle α (see FIG. 4) of the tension insulators in the tension tower changes depending on the topography of the transmission line. The conventional earth-side arc horn device has a structure in which the earth-side arc horn is fixed to a horn support fitting provided integrally with the connecting fitting. Therefore, when the catenary angle α changes, the inclination angle of the earth-side arc horn changes. The lower end of the earth-side arc horn shifts in the tension insulator series direction, and the horn interval G changes. Therefore, when the catenary angle α of the tension insulators is larger (or smaller) than the normal angle (the angle at which the lower end of the earth-side arc horn is directly above the jumper-side arc horn), the protruding length of the earth-side arc horn The specified horn interval is secured by increasing the length.

しかし、アース側アークホーンの下端が耐張碍子連方向にずれて、アース側アークホーンの下端がジャンパ側アークホーンの真上に位置しなくなると、アース側アークホーンの突出長さを調整して規定のホーン間隔に設定する作業やホーン間隔を測定する作業が極めて面倒である。また、アース側アークホーンの下端がジャンパ側アークホーンの真上に位置しない状態で規定のホーン間隔を確保するには、アース側アークホーンの突出長さを長くする必要があるため、長さの長いアース側アークホーンを用意しなければならない。さらに、カテナリー角αがマイナス側になる場合は、アース側アークホーンの突出長さを特に長くする必要があるため、風圧荷重に耐えられるように板厚を厚くしなければならないケースも出てくる。   However, if the lower end of the earth-side arc horn is displaced in the direction of the tension insulator and the lower end of the earth-side arc horn is no longer located directly above the jumper-side arc horn, the protruding length of the earth-side arc horn is adjusted. The work of setting the specified horn interval and the operation of measuring the horn interval are extremely troublesome. In addition, in order to secure the specified horn spacing in a state where the lower end of the earth side arc horn is not located directly above the jumper side arc horn, it is necessary to increase the protrusion length of the earth side arc horn. A long earth-side arc horn must be prepared. Furthermore, when the catenary angle α is on the negative side, the protrusion length of the earth side arc horn needs to be particularly long, so there are cases where the plate thickness must be increased to withstand the wind pressure load. .

本発明の目的は、ホーン支持金具下端からのアース側アークホーンの突出長さを調整する作業やホーン間隔を測定する作業が容易で、しかもアース側アークホーンの長さが従来よりも短くて済むアース側アークホーン装置を提供することにある。   The object of the present invention is to easily adjust the projecting length of the earth-side arc horn from the lower end of the horn support bracket and to measure the horn interval, and the length of the earth-side arc horn can be shorter than before. An object of the present invention is to provide an earth-side arc horn device.

この目的を達成するため本発明は、耐張碍子連を鉄塔アームに連結する連結金具から下方へ延び出したホーン支持金具と、このホーン支持金具に上下方向の位置を調整可能に取り付けられたアース側アークホーンとを備えたアース側アークホーン装置において、前記アース側アークホーンが、その下端の位置を耐張碍子連の軸線方向に調整できるように、ホーン支持金具に取り付けられるようになっていることを特徴とするものである。   In order to achieve this object, the present invention provides a horn support fitting extending downward from a connection fitting for connecting a tension insulator to a steel tower arm, and an earth ground attached to the horn support fitting so that the vertical position can be adjusted. In the earth side arc horn apparatus provided with the side arc horn, the earth side arc horn is adapted to be attached to the horn support metal fitting so that the position of the lower end can be adjusted in the axial direction of the tension insulator series. It is characterized by this.

本発明に係るアース側アークホーン装置は、耐張碍子連の軸線方向を含む垂直面内で、前記ホーン支持金具に対するアース側アークホーンの取付け角度が調整可能となっていることが好ましい。   In the earth-side arc horn device according to the present invention, it is preferable that the mounting angle of the earth-side arc horn with respect to the horn support fitting can be adjusted within a vertical plane including the axial direction of the tension insulator series.

本発明によれば、アース側アークホーンの下端の位置を耐張碍子連の軸線方向に調整できるようになっているので、アース側アークホーンの下端をジャンパ側アークホーンのほぼ真上に位置させることが可能となり、アース側アークホーンの突出長さを調整する作業やホーン間隔を測定する作業を容易に行うことができる。また、アース側アークホーンの突出長さの調整範囲が小さくて済むため、アース側アークホーンの長さを従来よりも短くでき、コストダウンを図ることができる。   According to the present invention, since the position of the lower end of the earth side arc horn can be adjusted in the axial direction of the tension insulator series, the lower end of the earth side arc horn is positioned almost directly above the jumper side arc horn. Therefore, the work of adjusting the protruding length of the earth-side arc horn and the work of measuring the horn interval can be easily performed. Moreover, since the adjustment range of the protrusion length of the earth side arc horn may be small, the length of the earth side arc horn can be made shorter than before, and the cost can be reduced.

図１（Ａ）、（Ｂ）は本発明の一実施形態を示す。図１において、図５と同一部分には同一符号を付してある。このアース側アークホーン装置３９も、ホーン支持金具３３に補助金具４１を介してアース側アークホーン３５を取り付けている点では従来と同様である。   1A and 1B show an embodiment of the present invention. In FIG. 1, the same parts as those of FIG. This earth side arc horn device 39 is also similar to the conventional one in that the earth side arc horn 35 is attached to the horn support fitting 33 via the auxiliary fitting 41.

このアース側アークホーン３９の特徴は、図１（Ｂ）に示すように、補助金具４１の下部が上部より幅広に形成され、アース側アークホーン３５を取り付けるための２つのボルト穴４９Ａ、４９Ｂのうちの下側のボルト穴４９Ｂが、上側のボルト穴４９Ａを中心とする円弧状に形成されていることである。このため、このアース側アークホーン装置３９は、図２（Ａ）〜（Ｃ）のように、耐張碍子連の軸線方向を含む垂直面内（この実施形態ではホーン支持金具３３を含む垂直面内）でのホーン支持金具３３の中心軸線に対するアース側アークホーン３５の取付け角度を調整することが可能である。図２（Ａ）はカテナリー角αが普通の場合、（Ｂ）はカテナリー角αが大きい場合、（Ｃ）はカテナリー角αが小さいかマイナスの場合である。なお、アース側アークホーン３５の上下方向の位置が調整可能であることは従来と同じである。   As shown in FIG. 1B, the earth side arc horn 39 is characterized in that the lower part of the auxiliary metal fitting 41 is formed wider than the upper part, and two bolt holes 49A, 49B for attaching the earth side arc horn 35 are provided. The lower bolt hole 49B is formed in an arc shape centering on the upper bolt hole 49A. For this reason, as shown in FIGS. 2A to 2C, the earth-side arc horn device 39 is in a vertical plane including the axial direction of the tension insulator series (in this embodiment, the vertical plane including the horn support fitting 33). It is possible to adjust the mounting angle of the earth-side arc horn 35 with respect to the central axis of the horn support fitting 33 in the inner). 2A shows a case where the catenary angle α is normal, FIG. 2B shows a case where the catenary angle α is large, and FIG. 2C shows a case where the catenary angle α is small or negative. It is to be noted that the vertical position of the earth-side arc horn 35 can be adjusted as before.

このアース側アークホーン装置３９は上記のような構成であるため、これを、図３のように鉄塔アーム１１の脇の連結金具１７の部分に設置する際には、耐張碍子連１３のカテナリー角αの大きさに応じてホーン支持金具３３に対するアース側アークホーン３５の取付け角度を調整することで、アース側アークホーン３９の下端の位置を耐張碍子連方向に調整し（矢印Ａ参照）、アース側アークホーン３９の下端をジャンパ側アークホーン３７のほぼ真上に位置させることができる。したがって、アース側アークホーン３５のホーン支持金具３３からの突出長さを調整する作業やホーン間隔を測定する作業を容易に行うことができる。また、アース側アークホーン３５をより鉛直方向下方に向けることができるため、アース側アークホーンの突出長さの調整範囲が小さくて済み、アース側アークホーンの長さを従来よりも短くできる。   Since the earth-side arc horn device 39 has the above-described configuration, when it is installed in the connecting bracket 17 on the side of the tower arm 11 as shown in FIG. 3, the catenary of the tension insulator series 13 is provided. By adjusting the mounting angle of the earth side arc horn 35 with respect to the horn support fitting 33 according to the size of the angle α, the position of the lower end of the earth side arc horn 39 is adjusted in the tension insulator linkage direction (see arrow A). The lower end of the earth side arc horn 39 can be positioned almost directly above the jumper side arc horn 37. Therefore, the operation | work which adjusts the protrusion length from the horn support metal fitting 33 of the earth side arc horn 35 and the operation | work which measures a horn space | interval can be performed easily. Further, since the earth-side arc horn 35 can be directed further downward in the vertical direction, the adjustment range of the projecting length of the earth-side arc horn is small, and the length of the earth-side arc horn can be made shorter than before.

なお、上記の実施形態では、アース側アークホーン３５をホーン支持金具３３に補助金具４１を介して取り付けたが、ホーン支持金具３３の下端部を補助金具４１の下部と同じ構造にすることにより、ホーン支持金具３３にアース側アークホーン３５を直接取り付けることも可能である。また、アース側アークホーンを取り付ける中心ボルト穴４９Ａと円弧状ボルト穴４９Ｂは上下を反対にしてもよいし、２つのボルト穴４９Ａ、４９Ｂを両方とも円弧状に形成してもよい。   In the above embodiment, the earth side arc horn 35 is attached to the horn support fitting 33 via the auxiliary fitting 41. However, by making the lower end of the horn support fitting 33 the same structure as the lower portion of the auxiliary fitting 41, It is also possible to attach the earth side arc horn 35 directly to the horn support fitting 33. Further, the center bolt hole 49A and the arc-shaped bolt hole 49B for attaching the earth side arc horn may be turned upside down, or both the two bolt holes 49A and 49B may be formed in an arc shape.

本発明に係るアース側アークホーン装置の一実施形態を示す、（Ａ）は側面図、（Ｂ）はアース側アークホーンを取り外した状態の正面図。BRIEF DESCRIPTION OF THE DRAWINGS One Embodiment of the earth side arc horn apparatus which concerns on this invention is shown, (A) is a side view, (B) is a front view of the state which removed the earth side arc horn. （Ａ）〜（Ｃ）は図１のアース側アークホーン装置におけるアース側アークホーンの取付け角度の調整範囲を示す正面図。(A)-(C) is a front view which shows the adjustment range of the attachment angle of the earth side arc horn in the earth side arc horn apparatus of FIG. 図１のアース側アークホーン装置の使用状態を示す正面図。The front view which shows the use condition of the earth side arc horn apparatus of FIG. 従来のアース側アークホーン装置の使用状態を示す正面図。The front view which shows the use condition of the conventional earth side arc horn apparatus. 従来のアース側アークホーン装置を示す、（Ａ）は側面図、（Ｂ）は正面図。The conventional earth side arc horn apparatus is shown, (A) is a side view, (B) is a front view.

符号の説明Explanation of symbols

１１：鉄塔アーム
１３：耐張碍子連
１５：架空送電線
１７：連結金具
１９：引留めクランプ
２１：引留め金具
２３：パイプ式ジャンパ装置
２５：パイプ導体
２７：スペーサ
２９：吊下げ棒
３１：ジャンパ線
３３：ホーン支持金具
３５：アース側アークホーン
３７：ジャンパ側アークホーン
３９：アース側アークホーン装置
４１：補助金具
４３、４５：ボルトナット
４７：ボルト穴
４９Ａ：中心ボルト穴
４９Ｂ：円弧状ボルト穴
α：カテナリー角
Ｇ：ホーン間隔 11: tower arm 13: tension insulator 15: overhead power transmission line 17: coupling bracket 19: retaining clamp 21: retaining bracket 23: pipe-type jumper device 25: pipe conductor 27: spacer 29: hanging rod 31: jumper Line 33: Horn support bracket 35: Earth side arc horn 37: Jumper side arc horn 39: Earth side arc horn device 41: Auxiliary metal fitting 43, 45: Bolt nut 47: Bolt hole 49A: Center bolt hole 49B: Arc-shaped bolt hole α: Catenary angle G: Horn interval

Claims (2)

耐張碍子連を鉄塔アームに連結する連結金具から下方へ延び出したホーン支持金具と、このホーン支持金具に上下方向の位置を調整可能に取り付けられたアース側アークホーンとを備えたアース側アークホーン装置において、前記アース側アークホーンが、その下端の位置を耐張碍子連の軸線方向に調整できるように、ホーン支持金具に取り付けられるようになっていることを特徴とするアース側アークホーン装置。   A ground-side arc provided with a horn support bracket extending downward from a connection bracket for connecting the tension insulator to the tower arm, and an earth-side arc horn attached to the horn support bracket in such a manner that its vertical position can be adjusted. In the horn device, the earth side arc horn device is adapted to be attached to a horn support bracket so that the position of the lower end of the horn device can be adjusted in the axial direction of the tension insulator series. . 耐張碍子連方向の軸線方向を含む垂直面内で、前記ホーン支持金具に対するアース側アークホーンの取付け角度が調整可能となっていることを特徴とする請求項１記載のアース側アークホーン装置。   2. The earth-side arc horn device according to claim 1, wherein an attachment angle of the earth-side arc horn with respect to the horn support fitting is adjustable within a vertical plane including the axial direction of the tension insulators.
JP2007003554A 2007-01-11 2007-01-11 Earth side arc horn device Expired - Fee Related JP4676446B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113054610A (en) * 2021-04-23 2021-06-29 新能动力(北京)智慧能源科技有限公司 Lightning arrester of transformer substation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4714511Y1 (en) * 1968-10-15 1972-05-25
JPS60170920U (en) * 1984-04-23 1985-11-13 旭テック株式会社 Ground horn for insulation coordination
JPH0613338U (en) * 1992-07-20 1994-02-18 関西電力株式会社 Jumper clamp device for overhead ground wire
JPH09140038A (en) * 1995-11-16 1997-05-27 Fujikura Ltd Horn on steel tower side for jumper device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4714511Y1 (en) * 1968-10-15 1972-05-25
JPS60170920U (en) * 1984-04-23 1985-11-13 旭テック株式会社 Ground horn for insulation coordination
JPH0613338U (en) * 1992-07-20 1994-02-18 関西電力株式会社 Jumper clamp device for overhead ground wire
JPH09140038A (en) * 1995-11-16 1997-05-27 Fujikura Ltd Horn on steel tower side for jumper device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113054610A (en) * 2021-04-23 2021-06-29 新能动力(北京)智慧能源科技有限公司 Lightning arrester of transformer substation
CN113054610B (en) * 2021-04-23 2022-05-03 新能动力(北京)智慧能源科技有限公司 Lightning arrester of transformer substation

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