JPH03235612A - Lightning current shunting device for transmission steel tower - Google Patents
Lightning current shunting device for transmission steel towerInfo
- Publication number
- JPH03235612A JPH03235612A JP2027681A JP2768190A JPH03235612A JP H03235612 A JPH03235612 A JP H03235612A JP 2027681 A JP2027681 A JP 2027681A JP 2768190 A JP2768190 A JP 2768190A JP H03235612 A JPH03235612 A JP H03235612A
- Authority
- JP
- Japan
- Prior art keywords
- power transmission
- transmission tower
- steel tower
- ground wire
- lightning current
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 64
- 229910000831 Steel Inorganic materials 0.000 title abstract description 11
- 239000010959 steel Substances 0.000 title abstract description 11
- 239000012212 insulator Substances 0.000 abstract description 8
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、送電鉄塔、あるいは架空地線が雷撃されたと
きの雷電流を送電鉄塔と分担して大地に流すことにより
、送電鉄塔の電位上昇を抑制し、送電路の事故を防止す
るための送電鉄塔の雷電流分流装置に関する。Detailed Description of the Invention (Industrial Field of Application) The present invention reduces the electric potential of the power transmission tower by sharing the lightning current with the power transmission tower and flowing it to the ground when the power transmission tower or the overhead ground wire is struck by lightning. This invention relates to a lightning current shunting device for power transmission towers for suppressing power surge and preventing accidents on power transmission lines.
（従来の技術）
従来、送電鉄塔、あるいは架空地線か雷撃を受けたとき
、その雷電流は送電鉄塔を介して大地に流入するように
雷電流回路が構成されている。(Prior Art) Conventionally, lightning current circuits have been configured so that when a power transmission tower or an overhead ground wire is struck by lightning, the lightning current flows into the ground via the power transmission tower.
上記のように、送電鉄塔、あるいは架空地線が雷撃を受
けたときに送電鉄塔を通して雷電流を大地に流入させる
方式の場合、雷電流が送電鉄塔を流れる過程で鉄塔部材
の電気抵抗により送電鉄塔の電位が高くなるため、送電
鉄塔に流れる雷電流あるいは波頭峻度が設計値を越える
場合には碍子装置の絶縁耐力を越えるような電位差が生
じて逆閃絡が発生し、停電状態になったり遮断器、ある
いは変圧器等が損傷するという問題があった。そのため
、送電鉄塔の接地抵抗の低減、架空地線の多条化、不平
衡絶縁設計等の耐雷対策か実施されているが充分な効果
が得られていないのが現状である。As mentioned above, in the case of a method in which lightning current flows into the ground through the power transmission tower when a power transmission tower or overhead ground wire is struck by lightning, the electric resistance of the tower members causes the lightning current to flow through the power transmission tower. If the lightning current flowing through the transmission tower or the wave front steepness exceeds the design value, a potential difference that exceeds the dielectric strength of the insulator will occur, causing a reverse flash fault and a power outage. There was a problem that circuit breakers or transformers were damaged. For this reason, countermeasures against lightning such as reducing the grounding resistance of power transmission towers, increasing the number of lines in the overhead grounding wire, and designing unbalanced insulation have been implemented, but the current situation is that sufficient effects have not been obtained.
（発明が解決しようとする課題）
そこで本発明では、送電鉄塔、あるいは架空地線が雷撃
を受けたときに雷電流を送電鉄塔と分担して大地に流す
ための垂下線を配設することにより、雷電流を送電鉄塔
及び垂下線の両方に分流させ、送電線に対する送電鉄塔
の電位の上昇を抑制することを解決すべき技術的課題と
するものである。(Problems to be Solved by the Invention) Therefore, in the present invention, when a power transmission tower or an overhead ground wire is struck by lightning, a hanging wire is installed to share the lightning current with the power transmission tower and flow it to the ground. The technical problem to be solved is to divide lightning current to both the power transmission tower and the hanging line, and to suppress the rise in potential of the power transmission tower with respect to the power transmission line.
（課題を解決するための手段）
上記課題解決のための技術的手段は、送電鉄塔の雷電流
分流装置を、送電線及び架空地線を架設した送電鉄塔の
頂部に上端部か接続されるとともに前記送電鉄塔の中心
軸と平行に垂直状に張設され、且つ下端部が接地されて
前記送電鉄塔、もしくは架空地線が雷撃されたときの雷
電流を前記送電鉄塔と分担して大地に流すための垂下線
を配設するとともに、それぞれの垂下線を一条あるいは
多条化した構成にすることである。(Means for solving the problem) The technical means for solving the above problem is to connect the lightning current shunting device of the power transmission tower to the top of the power transmission tower on which the power transmission line and the overhead ground wire are installed. It is vertically stretched parallel to the central axis of the power transmission tower, and its lower end is grounded, so that when the power transmission tower or the overhead ground wire is struck by lightning, the lightning current is shared with the power transmission tower and sent to the ground. In addition to arranging hanging lines for this purpose, each hanging line is configured to have a single line or multiple lines.
（作用）
上記構成の送電鉄塔の雷電流分流装置によれば、送電鉄
塔あるいは架空地線が雷撃されたときに、その雷撃電流
は送電鉄塔と垂下線とに分流された状態で大地に流れる
ため、送電鉄塔の電位の上昇が抑制され、碍子装置等に
おける逆閃絡の発生か防止される。その結果、停電状態
になったり、遮断器、あるいは変圧器などが損傷すると
いう事故を防止する作用をする。(Function) According to the lightning current shunting device for a power transmission tower having the above configuration, when a power transmission tower or an overhead ground wire is struck by lightning, the lightning current flows to the ground in a state where it is divided between the power transmission tower and the hanging wire. , the rise in the potential of the transmission tower is suppressed, and the occurrence of reverse flash faults in insulators and the like is prevented. As a result, it works to prevent accidents such as power outage or damage to circuit breakers or transformers.
（実施例） 次に、本発明の実施例を図面を参照しながら説明する。(Example) Next, embodiments of the present invention will be described with reference to the drawings.
第１図は送電鉄塔１を正面方向から見た外観図であり、
第２図は送電鉄塔１を側面方向から見た外観図である。Figure 1 is an external view of the power transmission tower 1 seen from the front.
FIG. 2 is an external view of the power transmission tower 1 viewed from the side.
第１図に示すように、送電鉄塔１の頂部において、送電
鉄塔１の幅方向に水平状に延長改造された架空地線用の
腕金２の左右それぞれの端部には垂下線３、及び４の上
端部が後述する接続手段によって機械的、及び電気的に
接続されている。また、垂下線３、及び４それぞれの下
端部が、後述する固定手段により機械的に固定されると
ともに、大地に埋設された埋設地線５に接続されている
。As shown in FIG. 1, at the top of the power transmission tower 1, there are hanging lines 3 and The upper ends of 4 are mechanically and electrically connected by a connecting means described later. Further, the lower ends of each of the hanging lines 3 and 4 are mechanically fixed by a fixing means to be described later, and are connected to a buried ground line 5 buried in the ground.
第２図に示すように、送電鉄塔１には例えば１本の架空
地線１１と、複数の送電線１２．１３、及び１４それぞ
れが高耐圧碍子１５を介して架設されている。また、垂
下線３．４は、送電鉄塔１あるいは架空地線１１に雷撃
を受けたときの雷電流を大地に流すために十分な容量を
有する例えば硬銅撚線、鋼心イ号アルミニュウム撚線、
アルミニュウム被鋼撚線あるいは鋼材などで構成されて
いる。上記垂下線３、及び４は、１本の場合、あるいは
複数本の多条化を行うことかあり、多条化することによ
り雷電流の通電容量を増やすことができる。尚、第１図
、第２図に示すように垂下線３、及び４は送電鉄塔ｌの
中心軸に対してほぼ対称の位置に垂下配設されている。As shown in FIG. 2, for example, one overhead ground wire 11 and a plurality of power transmission lines 12, 13, and 14 are installed on the power transmission tower 1 via high voltage insulators 15. In addition, the hanging wire 3.4 may be a hard copper stranded wire or a steel-core No. ,
It is composed of aluminum-coated steel stranded wire or steel material. The above-mentioned hanging wires 3 and 4 may be one, or may be made into multiple wires, and by increasing the number of wires, the carrying capacity of lightning current can be increased. Incidentally, as shown in FIGS. 1 and 2, the hanging lines 3 and 4 are disposed in substantially symmetrical positions with respect to the central axis of the power transmission tower l.
第３図は、垂下線３．４それぞれの上端部を架空地線用
の腕金２に固定するための手段を示した説明図である。FIG. 3 is an explanatory diagram showing a means for fixing the upper end portions of each of the hanging lines 3.4 to the armrest 2 for the overhead ground wire.
第３図に示すように、架空地線１１を適切な張度で支持
するために送電鉄塔１（７）最上部に固定された腕金２
には、Ｕり１ノビス２１．２２、−枚リンク２３を介し
て地線耐張クランプ２４それぞれが対称位置に取り付け
られている。この地線耐張クランプ２４それぞれには、
架空地線１１が挿通された状態で二つの地線耐張クラン
プ２４の間の架空地線部分ｌＩＡに所要の弛みを設ける
ように、且つ架空地線１１を強固に支持するための複数
の固定ボルト２５が取り付けられている。また、二つの
地線耐張クランプ２４の間の架空地線部分１１Ａは、腕
金２の長手方向の中間部に取り付けられたジャンパーク
ランプ２６に機械的、電気的に接続されている。従って
架空地線１１はジャンパークランプ２６と腕金２とを介
して、接地状態にある送電鉄塔工と電気的に接続されて
いる。As shown in FIG. 3, a cross arm 2 is fixed to the top of the transmission tower 1 (7) in order to support the overhead ground wire 11 with appropriate tension.
Ground wire tension clamps 24 are attached at symmetrical positions via U-ri 1 novices 21, 22 and negative links 23, respectively. Each of the ground wire tension clamps 24 includes
A plurality of fixings are provided to provide a required slack in the overhead ground wire portion lIA between the two ground wire tension clamps 24 when the overhead ground wire 11 is inserted, and to firmly support the overhead ground wire 11. Bolts 25 are attached. Further, the overhead ground wire portion 11A between the two ground wire tension clamps 24 is mechanically and electrically connected to a jumper clamp 26 attached to the longitudinally intermediate portion of the arm 2. Therefore, the overhead ground wire 11 is electrically connected to the power transmission tower in a grounded state via the jumper clamp 26 and the cross arm 2.
一方、前記垂下線３．４それぞれの上端部は上記ジャン
パークランプ２６に対して前記架空地線１１と共締状態
で接続されるとともに、前記地線耐張クランプ２４と同
様に形成された上部耐張クランプ２７により機械的に支
持される。この上部耐張クランプ２７は、Ｕクレビス２
８．２９、及び−枚リンク３０を介して腕金２の左右端
部に鉛直状に取り付けられており、ジャンパークランプ
２６に接続された状態の垂下線３．４それぞれの上端部
が余裕を持って上部耐張クランプ２７に支持されるよう
になっている。On the other hand, the upper end of each of the hanging wires 3.4 is connected to the jumper clamp 26 in a co-fastened state with the overhead ground wire 11, and is connected to the jumper clamp 26 with an upper end wire formed similarly to the ground wire tension clamp 24. It is mechanically supported by tension clamps 27. This upper tension clamp 27 is connected to the U clevis 2
8.29 and - are vertically attached to the left and right ends of the arms 2 through the links 30, and the upper ends of each of the hanging lines 3.4 connected to the jumper clamp 26 have a margin. and is supported by an upper tension clamp 27.
上端部が上部耐張クランプ２７に支持された垂下線３．
４それぞれの下端部は、第４図に示すように固定されて
いる。A hanging wire whose upper end is supported by an upper tension clamp 27 3.
The lower ends of each of the four parts are fixed as shown in FIG.
第４図に示すように、垂下線３．４それぞれの下端部は
、前記上部耐張クランプ２７と同様に形成された下部耐
張クランプ３１により支持されており下部耐張クランプ
３１から大地方向に延出された垂下線３．４それぞれの
端部は、大地に埋設された埋設地線５と電気的に接続さ
れている。下部耐張クランプ３１は、長幹碍子３２、直
角クレビスリンク３３、スプリング式ターンバックル３
４、及びＵクレビス３５を介してアンカー３６に支持さ
れている。As shown in FIG. 4, the lower end of each of the hanging lines 3.4 is supported by a lower tension clamp 31 formed similarly to the upper tension clamp 27, and extends from the lower tension clamp 31 toward the ground. The ends of each of the extended hanging lines 3.4 are electrically connected to a buried ground wire 5 buried in the ground. The lower tension clamp 31 includes a long insulator 32, a right angle clevis link 33, and a spring type turnbuckle 3.
4, and is supported by an anchor 36 via a U clevis 35.
以上のような構成において、送電鉄塔ｌにあるいは架空
地線１１に雷撃を受けると、雷電流は送電鉄塔１と垂下
線３．４とに分流された状態で大地に流れ込むため、送
電鉄塔１の電位上昇か抑制され、高耐圧碍子１５部にお
ける逆閃絡の発生が防止される。尚、垂下線３．４それ
ぞれの下端部は、埋設地線５に亘接接続する代わりに送
電鉄塔１の脚部に接続しても良い。In the above configuration, when the power transmission tower 1 or the overhead ground wire 11 is struck by lightning, the lightning current flows into the ground in a state where it is divided into the power transmission tower 1 and the hanging wire 3.4, so that the power transmission tower 1 is struck by lightning. The increase in potential is suppressed, and the occurrence of reverse flash in the high voltage insulator 15 is prevented. Note that the lower ends of each of the hanging wires 3 and 4 may be connected to the legs of the power transmission tower 1 instead of being connected to the buried ground wire 5.
また、垂下線３．４の施工は既設の送電鉄塔に対しても
容易であり、且つ、垂下線３．４の施工のために新たに
敷地を取得する必要かないため、雷電流の分流を安価に
実現することができる。In addition, construction of hanging line 3.4 is easy even on existing transmission towers, and there is no need to acquire new land for construction of hanging line 3.4, so lightning current diversion can be done at low cost. can be realized.
（発明の効果）
以上のように本発明によれば、雷撃を受けたときに、雷
電流を送電鉄塔及び垂下線の両方に分流させることによ
り、送電線に対する送電鉄塔の電位の上昇を抑制し、碍
子装置等における逆閃絡の発生を防止することができる
ため、停電状態になったり、遮断器、あるいは変圧器等
が損傷するという事故を防止し、電力供給の安定化に寄
与することかできるという効果がある。(Effects of the Invention) As described above, according to the present invention, when a lightning strike occurs, the lightning current is shunted to both the power transmission tower and the hanging wire, thereby suppressing the rise in potential of the power transmission tower relative to the power transmission line. It is possible to prevent the occurrence of reverse flash faults in insulator devices, etc., thereby preventing accidents such as power outages and damage to circuit breakers or transformers, contributing to the stabilization of power supply. There is an effect that it can be done.
図面は実施例に係り、第１図は送電鉄塔と垂下線とを正
面方向から見た外観図、第２図は送電鉄塔と垂下線とを
側面方向から見た外観図、第３図は垂下線の上部接続状
態を示した説明図、第４図は垂下線の下部接続状態を示
した説明図である。
１：送電鉄塔
２：腕金
３．４：垂下線
５コ埋設地線
１１；架空地線
１２．１３．１４：送電線
２６：ジャンパークランプ
２７；上部耐張クランプ
３１：下部耐張クランプ
ａ願人 中部電力株式会社
圧願人 株式会社トーエネックThe drawings relate to the embodiment, and Fig. 1 is an external view of the power transmission tower and the hanging line as seen from the front, Fig. 2 is an external view of the transmission tower and the hanging line as seen from the side, and Fig. 3 is the hanging line. FIG. 4 is an explanatory diagram showing how the wires are connected at the top, and FIG. 4 is an explanatory diagram showing how the hanging lines are connected at the bottom. 1: Transmission tower 2: Cross arm 3.4: 5 hanging wires Buried ground wire 11; Overhead ground wire 12.13.14: Transmission line 26: Jumper clamp 27; Upper tension clamp 31: Lower tension clamp a request People Chubu Electric Power Co., Ltd. Toenec Co., Ltd.
Claims (2)
上端部が接続されるとともに前記送電鉄塔の中心軸に平
行に垂直状に張設され、且つ下端部が接地されて前記送
電鉄塔、もしくは架空地線に雷撃を受けたときの雷電流
を前記送電鉄塔と分担して大地に流すための垂下線を備
えたことを特徴とする送電鉄塔の雷電流分流装置。(1) The upper end is connected to the top of the power transmission tower on which the power transmission line and the overhead ground wire are installed, and the power transmission tower is stretched vertically parallel to the central axis of the power transmission tower, and the lower end is grounded. , or a lightning current shunting device for a power transmission tower, characterized in that it is provided with a hanging wire for sharing the lightning current with the power transmission tower and flowing it to the ground when an overhead ground wire is struck by lightning.
上端部が接続されるとともに前記送電鉄塔の中心軸に平
行に垂直状に張設され、且つ下端部が接地されて前記送
電鉄塔、もしくは架空地線に雷撃を受けたときの雷電流
を前記送電鉄塔と分担して大地に流すために設けられた
垂下線のそれぞれを多条化したことを特徴とする送電鉄
塔の雷電流分流装置。(2) The upper end is connected to the top of the power transmission tower on which the power transmission line and the overhead ground wire are installed, and the power transmission tower is vertically stretched parallel to the central axis of the power transmission tower, and the lower end is grounded. , or a lightning current shunting of a power transmission tower, characterized in that each of the hanging wires provided to share the lightning current with the power transmission tower and flow it to the ground when an overhead ground wire is struck by lightning is made multi-stranded. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2027681A JPH03235612A (en) | 1990-02-07 | 1990-02-07 | Lightning current shunting device for transmission steel tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2027681A JPH03235612A (en) | 1990-02-07 | 1990-02-07 | Lightning current shunting device for transmission steel tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03235612A true JPH03235612A (en) | 1991-10-21 |
Family
ID=12227714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2027681A Pending JPH03235612A (en) | 1990-02-07 | 1990-02-07 | Lightning current shunting device for transmission steel tower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03235612A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05199636A (en) * | 1992-01-16 | 1993-08-06 | Chubu Electric Power Co Inc | Arrester for distribution line |
| CN101964507A (en) * | 2009-09-08 | 2011-02-02 | 国网电力科学研究院 | Central vertical grounding leading-down method for composite pole tower and pole tower thereof |
| WO2011029312A1 (en) * | 2009-09-08 | 2011-03-17 | 国网电力科学研究院 | Method for vertically grounding and leading-down from center of composite material pole tower and pole tower thereof |
| WO2011029314A1 (en) * | 2009-09-08 | 2011-03-17 | 广东电网公司深圳供电局 | Method for vertically grounding and leading-down from inner side of composite material pole tower and pole tower thereof |
| CN110824303A (en) * | 2019-10-16 | 2020-02-21 | 广西大学 | Method for eliminating central direct flashover of span by utilizing advanced discharge |
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|---|---|---|---|---|
| JPS641414A (en) * | 1987-06-22 | 1989-01-05 | Taisuke Inoue | Steel tower combined with aerial earth wire and resistor |
| JPH01122316A (en) * | 1987-11-05 | 1989-05-15 | Furukawa Electric Co Ltd:The | Aerial transmission line |
-
1990
- 1990-02-07 JP JP2027681A patent/JPH03235612A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS641414A (en) * | 1987-06-22 | 1989-01-05 | Taisuke Inoue | Steel tower combined with aerial earth wire and resistor |
| JPH01122316A (en) * | 1987-11-05 | 1989-05-15 | Furukawa Electric Co Ltd:The | Aerial transmission line |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05199636A (en) * | 1992-01-16 | 1993-08-06 | Chubu Electric Power Co Inc | Arrester for distribution line |
| CN101964507A (en) * | 2009-09-08 | 2011-02-02 | 国网电力科学研究院 | Central vertical grounding leading-down method for composite pole tower and pole tower thereof |
| WO2011029312A1 (en) * | 2009-09-08 | 2011-03-17 | 国网电力科学研究院 | Method for vertically grounding and leading-down from center of composite material pole tower and pole tower thereof |
| WO2011029314A1 (en) * | 2009-09-08 | 2011-03-17 | 广东电网公司深圳供电局 | Method for vertically grounding and leading-down from inner side of composite material pole tower and pole tower thereof |
| CN110824303A (en) * | 2019-10-16 | 2020-02-21 | 广西大学 | Method for eliminating central direct flashover of span by utilizing advanced discharge |
| CN110824303B (en) * | 2019-10-16 | 2021-10-01 | 广西大学 | Method for eliminating central direct flashover of span by utilizing advanced discharge |
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