JPH04137382A - Lightning arrester for power transmission lines - Google Patents
Lightning arrester for power transmission linesInfo
- Publication number
- JPH04137382A JPH04137382A JP25815090A JP25815090A JPH04137382A JP H04137382 A JPH04137382 A JP H04137382A JP 25815090 A JP25815090 A JP 25815090A JP 25815090 A JP25815090 A JP 25815090A JP H04137382 A JPH04137382 A JP H04137382A
- Authority
- JP
- Japan
- Prior art keywords
- lightning arrester
- power transmission
- voltage
- gap
- support
- 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 description 11
- 239000012212 insulator Substances 0.000 claims description 13
- 230000003068 static effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
Landscapes
- Insulators (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は架空送電線路を雷サージより保護するための架
空線用避雷装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a lightning arrester for overhead lines for protecting overhead power transmission lines from lightning surges.
（従来の技術及び解決しようとする課題）従来、架空送
電線路に雷サージが加わった時、これを速やかに送電す
ると共に、その後生じる続流を遮断して地絡事故を防止
する避雷装置が提案されている。(Prior art and problems to be solved) Conventionally, a lightning arrester has been proposed that, when a lightning surge occurs on an overhead power transmission line, quickly transmits power and prevents ground faults by blocking the subsequent flow. has been done.
第１図はこのような避雷装置の説明図である。FIG. 1 is an explanatory diagram of such a lightning arrester.
図面に示すように、鉄塔（１）の支持アーム（２）に支
持碍子（３）を介して送電線を支持し、上記支持碍子（
３）の上下両端に間隙Ｇｏ１５０％閃絡電圧ｖＯのアー
キングホーン（５）を設けると共に、この支持碍子（３
）と並行に静電容量Ｃａの避雷碍子（４）を支持アーム
（２）に吊下げ固定する・そして上記避雷碍子（４）の
下端部に取付けた放電電極（８）と、前記支持碍子（３
）側に取付けた放電電極（６）の間に所定の間隙長（Ｇ
ｇ）（その間の静電容量Ｃｇ１間隙自体の５０％閃絡電
圧Ｖｇ）を設けである。As shown in the drawing, a power transmission line is supported on a support arm (2) of a steel tower (1) via a support insulator (3).
Arcing horns (5) with a gap Go of 150% and a flash voltage vO are provided at both the upper and lower ends of the supporting insulator (3).
) A lightning arrester (4) with a capacitance Ca is suspended and fixed on the support arm (2) in parallel with the discharge electrode (8) attached to the lower end of the lightning arrester (4), and the support insulator ( 3
) side with a predetermined gap length (G
g) (50% flash voltage Vg of the capacitance Cg1 gap itself) is provided.
このような避雷装置においては、雷サージ電圧が加わる
と、異常電圧は避雷装置の下端部に設けられている放電
電極（８）の間隙を経由して、避雷碍子（４）内に内蔵
されている非直線性抵抗素子（７）を通して放電し、支
持碍子（３）側のアーキングホーン（５）間では絶対に
閃絡しないようにする必要がある。In such a lightning arrester, when a lightning surge voltage is applied, the abnormal voltage passes through the gap between the discharge electrode (8) provided at the lower end of the lightning arrester and is discharged into the lightning arrester (4). It is necessary to discharge through the non-linear resistance element (7) located in the support insulator (3) and to ensure that there is no flashing between the arcing horns (5) on the support insulator (3) side.
（課題を解決するための手段）
本発明は上述の課題を解決した送電線用避雷装置を提供
するもので、その特徴は、第１図に示す避雷装置におい
て、
Ｃａ／Ｃｇ≧１．０４Ｘ ｖｇ／（０，９１ｉＸ Ｖｏ
−１，０４Ｘ Ｌｇ） 〜１．１５Ｘ Ｖｇ（０，８
５Ｘ Ｖｏ −１，１５Ｘ Ｖｇ）となるようにしたこ
とにある。(Means for Solving the Problems) The present invention provides a lightning arrester for power transmission lines that solves the above-mentioned problems, and is characterized by: In the lightning arrester shown in FIG. 1, Ca/Cg≧1.04X vg /(0,91iX Vo
-1,04X Lg) ~1.15X Vg (0,8
5X Vo -1, 15X Vg).
（作用）
第１図の避雷装置において、支持碍子（３）の上下端に
設けたアーキングホーン（５）の間隙（Ｇｏ）の放電開
始電圧として５０％閃絡電圧ｖＯより２σ〜３σを差引
いた値をとり、放電電極（６）間隙（Ｇｇ）の放電開始
電圧として５０％閃絡電圧Ｖｇに２σ〜３σを加えた値
をとるものとし、両者の間で絶縁協調をはかるためには
、即ち確実に放電間隙Ｇｇで閃絡させるためには、
Ｃａ／Ｃｇ≧ＶｇＸ Ｉ １ ＋ （２ａ 〜３σ））
／ ［ＶｏＸ Ｉ １− （２σ〜３σ））−ＶｇＸ
（１＋（２σ〜３σ））］
σの値として、２％〜５％の値をとるものとすれば、
Ｃａ／Ｃｇ≧１．０４Ｘ Ｙｇ／（０，９８Ｘ Ｖｏ
−１，０４Ｘ Ｖｇ）−１、Ｉ５×Ｖｇ（０，８５×Ｖ
ｏ −１，１５×Ｖｇ）となる。このように放電電極（
６）の間隙の静電容量Ｃｇ及び避雷碍子（４）の静電容
量Ｃａを設定することにより、送電線又は鉄塔に雷サー
ジが印加された場合、確実に放電電極（６）の間隙Ｇｇ
で閃絡し、支持碍子（３）に設けたアーキングホーン（
５）の間隙部Ｇｏで閃絡することはない。(Function) In the lightning arrester shown in Figure 1, 2σ to 3σ is subtracted from the 50% flash voltage vO as the discharge starting voltage in the gap (Go) between the arcing horns (5) provided at the upper and lower ends of the support insulator (3). The discharge starting voltage of the discharge electrode (6) gap (Gg) is the sum of 50% flash voltage Vg and 2σ to 3σ. In order to achieve insulation coordination between the two, In order to ensure flashing in the discharge gap Gg, Ca/Cg≧VgX I 1 + (2a ~ 3σ))
/ [VoX I 1- (2σ~3σ))-VgX
(1+(2σ~3σ))] If the value of σ is 2%~5%, then Ca/Cg≧1.04X Yg/(0,98X Vo
-1,04X Vg)-1,I5xVg(0,85xV
o −1,15×Vg). In this way, the discharge electrode (
6) By setting the capacitance Cg of the gap and the capacitance Ca of the lightning arrester (4), when a lightning surge is applied to a power transmission line or tower, the gap Gg of the discharge electrode (6) can be reliably maintained.
The arcing horn (
5) There is no flashover in the gap Go.
（実施例）
上述の設定条件を満足するための手段として、第１図に
示す避雷装置において、避雷碍子（４）の静電容量Ｃａ
を大きくするために、例えば第２図に示すように清秋を
なした金属製容器（１１）内に非直線性抵抗限流素子（
Ｉ２）を収納固定し、容器（１１）の外側を絶縁物で被
覆（１５）すると共に、内部空隙部に有機絶縁物（１６
）を充填した避雷器（ｌＯ）を用いる。このような構造
の避雷器は、その構造上、従来のようなＦＲＰの耐圧容
器内に、非直線性抵抗限流素子を収納し、その両端に電
極を設けた構造のものに比して静電容量が大きくなるた
め、容易に前述の設定条件を満足することが出来る。な
お、図面において、（＋３）は非直線性抵抗限流素子（
１２）を金属容器（１１）内に吊下げ固定するための吊
り棒、（＋４）は高圧側電極である。(Example) As a means for satisfying the above-mentioned setting conditions, in the lightning arrester shown in FIG.
In order to increase the resistance, for example, a non-linear resistance current limiting element (
I2) is housed and fixed, the outside of the container (11) is covered with an insulating material (15), and the internal cavity is covered with an organic insulating material (16).
) A lightning arrester (lO) is used. Due to its structure, a lightning arrester with this structure has a non-linear resistance current limiting element housed in a pressure-resistant container made of FRP, and has electrodes at both ends. Since the capacity is increased, the above-mentioned setting conditions can be easily satisfied. In addition, in the drawing, (+3) is a nonlinear resistance current limiting element (
12) is suspended and fixed in the metal container (11), and (+4) is a high voltage side electrode.
第３図は本発明の避雷装置の他の実施例の説明図である
。避雷碍子（４）としてＦＲＰの耐圧容器内に非直線性
抵抗限流素子を収納した従来構造の避雷器を用いた場合
でも、図に示すように、避雷碍子（４）に並列にコンデ
ンサ（８）を配置することにより、前述の設定条件を実
現することが可能となる。FIG. 3 is an explanatory diagram of another embodiment of the lightning arrester of the present invention. Even when a conventional lightning arrester is used as the lightning arrester (4), in which a nonlinear resistance current limiting element is housed in an FRP pressure-resistant container, a capacitor (8) is connected in parallel to the lightning arrester (4) as shown in the figure. By arranging , it becomes possible to realize the above-mentioned setting conditions.
（発明の効果）
以上説明したように、本発明の送電線用避雷装置によれ
ば、送電線又は鉄塔に雷サージが印加された場合、確実
に放電電極の間隙部で閃絡し、送電線の支持碍子に設け
たアーキングホーンの間隙部で閃絡することはない。(Effects of the Invention) As explained above, according to the lightning arrester for power transmission lines of the present invention, when a lightning surge is applied to a power transmission line or a steel tower, flash shorting occurs reliably in the gap between the discharge electrodes, and the power transmission line There will be no flashover in the gap between the arcing horns provided in the supporting insulator.
第１図は送電線用避雷装置の一例の説明図である。
第２図は本発明の避雷装置において避雷碍子に用いる避
雷器の具体例の縦断面図である。
第３図は本発明の避雷装置の他の実施例の説明図である
。
１・・・鉄塔、２・・・支持アーテ、３・・・支持碍子
、４・・・避雷碍子、５・・・アーキングホーン、６・
・・放電電極、７・・・避雷器、８・・・コンデンサ、
１１・・・金属円筒容器、１２・・・非直線性抵抗限流
素子、１５・・・絶縁物被覆、１６・・・充填絶縁物。
算
図FIG. 1 is an explanatory diagram of an example of a lightning arrester for a power transmission line. FIG. 2 is a vertical sectional view of a specific example of a lightning arrester used as a lightning arrester in the lightning arrester of the present invention. FIG. 3 is an explanatory diagram of another embodiment of the lightning arrester of the present invention. 1... Steel tower, 2... Support arte, 3... Support insulator, 4... Lightning arrester, 5... Arching horn, 6...
...Discharge electrode, 7... Lightning arrester, 8... Capacitor,
DESCRIPTION OF SYMBOLS 11... Metal cylindrical container, 12... Nonlinear resistance current limiting element, 15... Insulator coating, 16... Filling insulator. Arithmetic diagram
Claims (1)
持し、同支持碍子の両端にアーキングホーン（５０％閃
絡電圧Ｖｏ）を設けると共に、支持碍子と並行に避雷碍
子（装置の静電容量Ｃａ）を吊下げ固定し、同避雷碍子
の下端部に取付けた放電電極と前記支持碍子に取付けた
放電電極の間に所定の放電間隙長（その間の静電容量Ｃ
ｇ、間隙自体の５０％閃絡電圧Ｖｇ）を設けた避雷装置
において、Ｃａ／Ｃｇ≧１．０４×Ｖｇ／（０．９６×
Ｖｏ−１．０４×Ｖｇ）〜１．１５×Ｖｇ／（０．８５
×Ｖｏ−１．１５×Ｖｇ）となるようにしたことを特徴
とする送電線用避雷装置。(1) Support the power transmission line on the support arm of the tower via a support insulator, provide an arcing horn (50% flash voltage Vo) at both ends of the support insulator, and install a lightning arrester (equipment static voltage) in parallel with the support insulator. The capacitance Ca) is suspended and fixed, and a predetermined discharge gap length (capacitance C
g, 50% flash fault voltage Vg of the gap itself), Ca/Cg≧1.04×Vg/(0.96×
Vo-1.04 x Vg) ~ 1.15 x Vg/(0.85
×Vo−1.15×Vg).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25815090A JPH04137382A (en) | 1990-09-26 | 1990-09-26 | Lightning arrester for power transmission lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25815090A JPH04137382A (en) | 1990-09-26 | 1990-09-26 | Lightning arrester for power transmission lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04137382A true JPH04137382A (en) | 1992-05-12 |
Family
ID=17316221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25815090A Pending JPH04137382A (en) | 1990-09-26 | 1990-09-26 | Lightning arrester for power transmission lines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04137382A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971865A (en) * | 2013-01-24 | 2014-08-06 | 上海兆邦电力器材有限公司 | Discharge gap cross-arm insulator |
-
1990
- 1990-09-26 JP JP25815090A patent/JPH04137382A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971865A (en) * | 2013-01-24 | 2014-08-06 | 上海兆邦电力器材有限公司 | Discharge gap cross-arm insulator |
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