JPH01298609A - Lightning protection insulator device for overhead power transmission line - Google Patents
Lightning protection insulator device for overhead power transmission lineInfo
- Publication number
- JPH01298609A JPH01298609A JP13052988A JP13052988A JPH01298609A JP H01298609 A JPH01298609 A JP H01298609A JP 13052988 A JP13052988 A JP 13052988A JP 13052988 A JP13052988 A JP 13052988A JP H01298609 A JPH01298609 A JP H01298609A
- Authority
- JP
- Japan
- Prior art keywords
- insulator
- horn
- discharge
- power transmission
- discharge electrode
- 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.)
- Granted
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 230000002265 prevention Effects 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 2
- 229910001296 Malleable iron Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Insulators (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野コ
この発明は架空送電線用避雷碍子装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a lightning arrester device for overhead power transmission lines.
[従来の技術]
従来の架空送電線用避雷碍子装置として特開昭62−9
0815号公報に示すものが提案されている。この装置
は鉄塔の支持アームに対し上部吊下金具を介して懸垂碍
子を多数直列に連結してなる懸垂碍子連を吊下し、その
懸垂碍子連の下端部には下部吊下金具及び電線クランプ
を介して送電線を支持している。又、前記上部吊下金具
には取付アダプタが支持され、そのアダプタの先#A部
には電圧−電流特性が非直線性を有する酸化亜鉛を主材
とする限流素子を内蔵した避雷硝子が吊下固定され、こ
の避雷碍子の下端に設けた接地側の放電電極と、前記下
部吊下金具に片持ち支持した課電側の放Th電極とを所
定の気中放電間隙をもって対向している。[Prior art] A conventional lightning arrester device for overhead power transmission lines is disclosed in Japanese Patent Application Laid-open No. 62-9.
What is shown in Publication No. 0815 has been proposed. This device suspends a suspension insulator chain consisting of a large number of suspension insulators connected in series from the support arm of a steel tower via an upper hanging bracket, and a lower hanging bracket and an electric wire clamp are attached to the lower end of the suspension insulator chain. It supports power transmission lines through. Further, a mounting adapter is supported on the upper hanging metal fitting, and at the end of the adapter, a lightning protection glass containing a current limiting element mainly made of zinc oxide, which has non-linear voltage-current characteristics, is installed. A grounding side discharge electrode which is fixedly suspended and provided at the lower end of this lightning arrester and a energized side discharge Th electrode which is cantilevered on the lower hanging metal fitting are opposed to each other with a predetermined air discharge gap. .
一方、前記上部吊下金具と下部吊下金具には前記懸垂碍
子連の沿面閃絡を防止するための接地側及び課電側のア
ークホーンが同じく所定の気中放電間隙をもって対向配
置されている。On the other hand, arc horns on the ground side and on the energized side for preventing creeping flash of the suspended insulator chain are arranged opposite to each other with a predetermined air discharge gap on the upper hanging metal fitting and the lower hanging metal fitting. .
[発明が解決しようとする課題]
ところが、前記従来の避雷碍子装置は課電側の放電電極
の長さよりも課電側のアークホーンの長さが短く、この
ため両者の重量が不均衡となり、送電線の自重が軽量で
、垂直荷重が比較的少ない送電線路の場合、前記課電側
の放電電極とアークホーンが上下方向に交互に揺動し易
く、前記放電電極の放電間隙及びアーキングホーンの放
電間隙が不安定となり避雷碍子装置としての信頼性に欠
けるという問題があった。[Problems to be Solved by the Invention] However, in the conventional lightning arrester device, the length of the arc horn on the energized side is shorter than the length of the discharge electrode on the energized side, and as a result, the weights of the two become unbalanced. In the case of a power transmission line where the dead weight of the power transmission line is light and the vertical load is relatively small, the discharge electrode and the arcing horn on the energized side tend to swing vertically alternately, and the discharge gap between the discharge electrodes and the arcing horn are There was a problem in that the discharge gap became unstable and the reliability as a lightning arrester device was lacking.
本発明の目的は上記従来の避雷碍子装置に存する問題点
を解消して、課電側の放電電極とアークホーンとを安定
して支持し、信頼性を向上することができる送電線用避
雷碍子装置を提供することにある。An object of the present invention is to provide a lightning arrester for power transmission lines that can stably support the discharge electrode and the arc horn on the power supply side and improve reliability by solving the problems that exist in the conventional lightning arrester device described above. The goal is to provide equipment.
[課題を解決するための手段]
本発明は上記目的を達成するため、支持アームに対し上
部ホーン取付金具を介して支持碍子を吊下し、該支持碍
子の下端部には下部ホーン取付金具及び電線クランプを
介して送電線を架設し、前記支持アーム側には電圧−電
線特性が非直線性の限流素子を内蔵した避雷碍子を装着
し、前記下部ホーン取付金具に設けた課電側の放電電極
と前記避雷碍子に設けた接地側の放電電極とを所定の気
中放電間隙をもって対向し、さらに前記上部及び下部の
ホーン取付金具には前記支持碍子の沿面閃絡防止用の接
地側及び課電側のアークホーンを取着した避雷碍子装置
において、課電側の放電電極と重量が均衡するように前
記課電側のアークホーンを太径にするという手段をとっ
ている。[Means for Solving the Problems] In order to achieve the above object, the present invention suspends a support insulator from a support arm via an upper horn mounting bracket, and a lower horn mounting bracket and a lower horn mounting bracket are attached to the lower end of the support insulator. A power transmission line is installed via a wire clamp, a lightning arrester with a built-in current limiting element with non-linear voltage-wire characteristics is installed on the support arm side, and a lightning arrester with a built-in current limiting element with non-linear voltage-wire characteristics is installed on the power supply side provided on the lower horn mounting bracket. The discharge electrode and the ground side discharge electrode provided on the lightning arrester are opposed to each other with a predetermined air discharge gap, and the upper and lower horn mounting brackets are provided with a ground side and a ground side disposed on the support insulator to prevent creeping flash. In a lightning arrester device to which an energizing side arc horn is attached, the arc horn on the energizing side is made to have a large diameter so that its weight is balanced with the discharge electrode on the energizing side.
[作用]
本発明の避雷碍子装置は、課電側の放電電極の重量と課
電側のアークホーンの重量とが均衡しているので、送電
線が風圧等により揺動し・た場合、課電側の放電電極と
アークホーンが上下方向に交互に揺動することはなく、
従って、課を側の放電電極と接地側の放電電極との気中
放電間隙及び支持碍子の沿面閃絡を防止するための課電
側と接地側とのアークホーンの気中放電間隙がほぼ一定
に保持され電気的信頼性が向上する。[Function] In the lightning arrester device of the present invention, the weight of the discharge electrode on the power supply side and the weight of the arc horn on the power supply side are balanced, so even if the power transmission line swings due to wind pressure, etc., the lightning arrester device will not be charged. The discharge electrode and arc horn on the power side do not swing vertically alternately,
Therefore, the air discharge gap between the discharge electrode on the side of the section and the discharge electrode on the ground side and the air discharge gap of the arc horn between the energized side and the ground side to prevent creeping flash of the supporting insulator are almost constant. This improves electrical reliability.
[実施例]
以下、本発明を具体化した一実施例を第1図〜第3図に
基づいて説明する。[Example] Hereinafter, an example embodying the present invention will be described based on FIGS. 1 to 3.
鉄塔の支持アーム1には吊下金具2がボルトにより固定
され、該吊下金具2にはUクレビス3が係止され、この
Uクレビス3には上部ホーン取付金具4が連結され、さ
らにこのホーン取付金具4には懸垂碍子を多数直列に連
結してなる支持碍子としての懸垂碍子連5の上端部が連
結されている。A hanging fitting 2 is fixed to the support arm 1 of the steel tower with bolts, a U clevis 3 is locked to the hanging fitting 2, an upper horn mounting fitting 4 is connected to the U clevis 3, and the horn The upper end portion of a suspension insulator chain 5, which serves as a support insulator and is formed by connecting a large number of suspension insulators in series, is connected to the mounting bracket 4.
ス、懸垂碍子連5の下端部には並行うレビス6を介して
下部ホーン取付金具7が連結され、このホーン取付金具
7には連結リンク8が連結され、さらに、この連結リン
ク8には電線クランプ9を介して送電線10が架設され
ている。A lower horn mounting bracket 7 is connected to the lower end of the suspension insulator chain 5 through parallel clevises 6, a connecting link 8 is connected to this horn mounting bracket 7, and an electric wire is connected to the connecting link 8. A power transmission line 10 is installed via a clamp 9.
前記下部ホーン取付金具7の右側のアーム部7aには後
述する接地側の放St極19と所定の気中放電間隙G1
をもって対向する課電側の放電電極11が片持ち支持さ
れている。又、前記上部及び下部のホーン取付金具4.
7のアーム部4a。The right arm portion 7a of the lower horn mounting bracket 7 is provided with a ground side discharge St pole 19 and a predetermined air discharge gap G1, which will be described later.
The discharge electrodes 11 on the charging side facing each other are supported in a cantilever manner. Also, the upper and lower horn mounting brackets 4.
7 arm portion 4a.
4b、7bには前記懸垂碍子連5の沿面閃絡を防止する
ための接地側及び課電側のアークホーン12.13が所
定の気中放電間隙G2をもって対向するように片持支持
されている。そして、課電側のアークホーン13は前記
課電側の放を電極11の重量と均衡するように太径に形
成され、送電線10が風圧等により揺動した場合、放電
電極11とアークホーン13が上下方向に交互に揺動す
るのを防止している。4b and 7b, arc horns 12.13 on the grounding side and on the energizing side for preventing creeping flash of the suspension insulator chain 5 are cantilevered so as to face each other with a predetermined air discharge gap G2. . The arc horn 13 on the power supply side is formed to have a large diameter so as to balance the discharge on the power supply side with the weight of the electrode 11, and when the power transmission line 10 swings due to wind pressure or the like, the discharge electrode 11 and the arc horn 13 is prevented from swinging alternately in the vertical direction.
前記支持アーム1には第2図の平面に示すように取付ア
ダプタ14が支持され、該アダプタ14には避雷碍子1
5の接地側の電極金具16がボルトにより固定されてい
る。この避雷碍子15は例えばFRPなどの耐圧絶縁筒
(図示路)の内部に電圧−電流特性が非直線性の酸化亜
鉛を主材とする限流素子(図示路)を内蔵するとともに
、前記耐圧絶縁筒の両端部に接地側の電極金具16及び
課電側の電極金具17を嵌合固定し、さらに前記耐圧絶
縁筒の外表面に絶縁外套体をゴムモールドして構成され
ている。前記課電側の電極金具17には前記課電側の放
電t ’lli 11と所定の気中放電間隙G1をもっ
て対向する接地側の放電電極19が支持されている。A mounting adapter 14 is supported on the support arm 1 as shown in the plane of FIG.
The ground side electrode fitting 16 of No. 5 is fixed with a bolt. This lightning arrester 15 has a built-in current-limiting element (path shown) whose main material is zinc oxide with non-linear voltage-current characteristics inside a voltage-resistant insulating cylinder (path shown) such as FRP, and The electrode fittings 16 on the grounding side and the electrode fittings 17 on the charging side are fitted and fixed to both ends of the tube, and an insulating jacket is rubber-molded on the outer surface of the voltage-resistant insulating tube. The electrode fitting 17 on the energizing side supports a grounding side discharge electrode 19 that faces the energizing side discharge t'lli 11 with a predetermined aerial discharge gap G1.
次に、前記のように構成した架空送電線用避雷碍子装置
についてその作用を説明する。Next, the operation of the lightning arrester device for overhead power transmission lines constructed as described above will be explained.
今、送電i&110に雷撃によるサージ電流が発生する
と、このサージ電流は連結リンク8、下部ホーン取付金
具7を経て課電側の放電電極11から接地側の放電量電
極19へフラッジオーバーされ、避雷碍子の′!4′!
fl金具17、限流素子(図示時)接地側の電極金具1
6、取付アダプタ14及び支持アーム1を経て鉄塔に放
電される。又、その後生じる続流電流は限流素子と気中
放電間隙G1により抑制遮断される。Now, when a surge current occurs due to a lightning strike in the power transmission i & 110, this surge current passes through the connection link 8 and the lower horn mounting bracket 7, and is flooded over from the discharge electrode 11 on the power supply side to the discharge amount electrode 19 on the grounding side. Insulator’s! 4′!
fl metal fitting 17, current-limiting element (as shown) ground side electrode metal fitting 1
6, is discharged to the steel tower via the mounting adapter 14 and the support arm 1. Further, the subsequent current generated thereafter is suppressed and interrupted by the current limiting element and the air discharge gap G1.
さて、本発明実施例においては下部ホーン取付金具7に
対し課電側の放電を極11と、課trfjAのアークホ
ーン13とが重量上均衡するようにアークホーン13の
径を大きくしたので、送電線10が風圧等により揺動し
ても放電電極11とアークホーン13が上下方向に交互
に揺動することがなくなる。従って、前記気中放電間隙
Gl、G2がほぼ一定に保持され、避雷碍子装置として
の電気的信頼性が向上するとともに、直撃雷などの異状
放電によりアークホーン13上端が溶損しても、太径で
ある分、損耗の進展を少なくでき、気中放電間隙G2の
変動を抑制することができる。Now, in the embodiment of the present invention, the diameter of the arc horn 13 is increased so that the discharge on the energizing side of the lower horn mounting bracket 7 is balanced between the pole 11 and the arc horn 13 of the charge trfjA in terms of weight. Even if the electric wire 10 swings due to wind pressure or the like, the discharge electrode 11 and the arc horn 13 will not swing alternately in the vertical direction. Therefore, the above-mentioned aerial discharge gaps Gl and G2 are maintained almost constant, and the electrical reliability of the lightning arrester device is improved. Therefore, the progress of wear and tear can be reduced, and fluctuations in the air discharge gap G2 can be suppressed.
なお、本発明は前記実施例に限定されるものではなく、
次のように具体化することもできる。Note that the present invention is not limited to the above embodiments,
It can also be specified as follows.
(1)前記実施例では課電側のアークホーン13を同一
材料により一体に形成したが、第4図に示すように、パ
イプ23の内部にこのパイプの材料よりも比重の大きい
例えば鉛24等の別材料を充填し、パイプ23の先端部
に中実の放電部25を嵌合固定すること。(1) In the embodiment described above, the arc horn 13 on the energizing side was integrally formed of the same material, but as shown in FIG. Filling the pipe with another material, and fitting and fixing the solid discharge part 25 to the tip of the pipe 23.
(2)第5図に示すように、課電側の放電電極11及び
アークホーン13の基端部に対し上下方向の傾斜角を調
節するために、下部ホーン取付金具7のアーム部7a1
,7bに対し長孔7cを円弧状に形成し、ボルト26.
27により締付固定すること。(2) As shown in FIG. 5, in order to adjust the vertical inclination angle with respect to the base end of the discharge electrode 11 and the arc horn 13 on the energizing side, the arm portion 7a1 of the lower horn mounting bracket 7 is
, 7b is formed with a long hole 7c in an arc shape, and the bolt 26.
Tighten and fix using 27.
(3)アークホーン13上への積雪量を軽減するため、
該ホーンの上下方向の径を水平方向の径よりも大きくす
ること。(3) To reduce the amount of snow accumulated on the arc horn 13,
The diameter of the horn in the vertical direction is made larger than the diameter in the horizontal direction.
(4)避雷碍子15をホーン取付金具4のアーム部4a
に装着し、アークホーン12の径を太くして避雷碍子1
5と均衡させること。(4) Attach the lightning arrester 15 to the arm portion 4a of the horn mounting bracket 4.
The lightning arrester 1 is installed by increasing the diameter of the arc horn 12.
To balance with 5.
[発明の効果]
以上詳述したように、本発明は送電線が風圧等により揺
動しても課電側の放電電極及び課′@側のアークホーン
の装着状態を安定化し、かつアーク放電による溶損の進
展を少なくすることにより、気中放電間隙の変動を抑制
し、電気的信頼性を向上することができる効果がある。[Effects of the Invention] As described in detail above, the present invention stabilizes the attachment state of the discharge electrode on the power supply side and the arc horn on the division side even if the power transmission line oscillates due to wind pressure, etc., and prevents arc discharge. By reducing the progress of melting loss caused by this, it is possible to suppress fluctuations in the air discharge gap and improve electrical reliability.
第1図〜第3図は本発明の架空送電線用避雷碍子装置を
具体化した一実施例を示し、第1図は装置全体の正面図
、第2図は同じく平面図、第3図は同じく右側面図、第
4図は本発明の別例を示す要部の断面図、第5図は同じ
く本発明の別例を示す要部の正面図である。
1・・・支持アーム、4・・・上部ホーン取付金具、5
・・・支持碍子としての懸垂碍子連、7・・・下部ホー
ン取付金具、9・・・電線クランプ、10・・・送電線
、11・・・課電側の放Th電極としてのアークホーン
、12(13)・・・接地(課電HpJのアークホーン
、14・・・取付アダプタ、15・・・避雷日子、19
・・・接地側の放電電極としてのアークホーン。
特許出願人 日本碍子 株式会社
旭可鍛鉄 株式会社
代 理 人 弁理士 恩1)博宣1 to 3 show an embodiment of the lightning arrester device for overhead power transmission lines according to the present invention, in which FIG. 1 is a front view of the entire device, FIG. 2 is a plan view, and FIG. Similarly, FIG. 4 is a right side view, FIG. 4 is a sectional view of the main part showing another example of the present invention, and FIG. 5 is a front view of the main part showing another example of the invention. 1...Support arm, 4...Upper horn mounting bracket, 5
... Suspended insulator chain as a support insulator, 7. Lower horn mounting bracket, 9. Wire clamp, 10. Power transmission line, 11. Arc horn as a discharge Th electrode on the charging side. 12 (13)... Earthing (arc horn of electrified HpJ, 14... Mounting adapter, 15... Lightning arrester, 19
... Arc horn as a discharge electrode on the ground side. Patent applicant Nippon Insulators Asahi Malleable Iron Co., Ltd. Agent Patent attorney On1) Hironobu
Claims (1)
を介して支持碍子(5)を吊下し、該支持碍子(5)の
下端部には下部ホーン取付金具(7)及び電線クランプ
(9)を介して送電線(10)を架設し、前記支持アー
ム(1)側には電圧−電線特性が非直線性の限流素子を
内蔵した避雷碍子(15)を装着し、前記下部ホーン取
付金具(7)に設けた課電側の放電電極(11)と前記
避雷碍子(15)に設けた接地側の放電電極(19)と
を所定の気中放電間隙(G1)をもって対向し、さらに
前記上部及び下部のホーン取付金具(4、7)には前記
支持碍子(5)の沿面閃絡防止用の接地側及び課電側の
アークホーン(12、13)を取着した避雷碍子装置に
おいて、課電側の放電電極(11)と重量が均衡するよ
うに前記課電側のアークホーン(13)を太径としたこ
とを特徴とする架空送電線用避雷碍子装置。1. Upper horn mounting bracket (4) for support arm (1)
A support insulator (5) is suspended through the support insulator (5), and a power transmission line (10) is installed at the lower end of the support insulator (5) via a lower horn mounting bracket (7) and a wire clamp (9). A lightning arrester (15) containing a current limiting element with non-linear voltage-wire characteristics is installed on the support arm (1) side, and a discharge electrode (15) on the energized side provided on the lower horn mounting bracket (7) is installed on the support arm (1) side. 11) and the ground side discharge electrode (19) provided on the lightning arrester (15), facing each other with a predetermined aerial discharge gap (G1), and further attaching the upper and lower horn mounting brackets (4, 7) to each other. is a lightning arrester device in which arc horns (12, 13) on the grounding side and the charging side for preventing creeping flash of the support insulator (5) are attached, and the weight is balanced with the discharge electrode (11) on the charging side. A lightning arrester device for an overhead power transmission line, characterized in that the arc horn (13) on the power supply side has a large diameter so that the power supply side arc horn (13) has a large diameter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13052988A JPH0834068B2 (en) | 1988-05-27 | 1988-05-27 | Lightning arrester device for overhead power lines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13052988A JPH0834068B2 (en) | 1988-05-27 | 1988-05-27 | Lightning arrester device for overhead power lines |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01298609A true JPH01298609A (en) | 1989-12-01 |
JPH0834068B2 JPH0834068B2 (en) | 1996-03-29 |
Family
ID=15036479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13052988A Expired - Lifetime JPH0834068B2 (en) | 1988-05-27 | 1988-05-27 | Lightning arrester device for overhead power lines |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0834068B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105207154A (en) * | 2015-09-16 | 2015-12-30 | 国家电网公司 | Method for improving anti-thunder level of 10-kV distribution line |
-
1988
- 1988-05-27 JP JP13052988A patent/JPH0834068B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105207154A (en) * | 2015-09-16 | 2015-12-30 | 国家电网公司 | Method for improving anti-thunder level of 10-kV distribution line |
Also Published As
Publication number | Publication date |
---|---|
JPH0834068B2 (en) | 1996-03-29 |
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