JPS63138616A - Arresting insulator - Google Patents
Arresting insulatorInfo
- Publication number
- JPS63138616A JPS63138616A JP28483786A JP28483786A JPS63138616A JP S63138616 A JPS63138616 A JP S63138616A JP 28483786 A JP28483786 A JP 28483786A JP 28483786 A JP28483786 A JP 28483786A JP S63138616 A JPS63138616 A JP S63138616A
- Authority
- JP
- Japan
- Prior art keywords
- lightning arrester
- lightning
- cap
- insulator
- insulator body
- 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
- 239000012212 insulator Substances 0.000 title claims description 24
- 238000007789 sealing Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
発明の目的
（産業上の利用分野）
この発明は、送電線路において雷撃による地絡事故の防
止を目的として使用される避雷碍子装置用避雷碍子に関
するものであり、さらに詳しくは碍子本体の笠部に避雷
素子を埋設してなる避雷碍子に関するものである６
（従来の技術）
従来のこの種の避雷碍子においては、製造のしやすさそ
の他の理由から避雷素子を碍子本体の頭部や笠部の軸方
向に埋設する構成が採用されていた。[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) The present invention relates to a lightning arrester for a lightning arrester device used for the purpose of preventing ground faults caused by lightning strikes on power transmission lines. This relates to a lightning arrester in which a lightning arrester is embedded in the cap of the insulator body.6 (Prior art) In this type of conventional lightning arrester, the lightning arrester is embedded in the insulator body for ease of manufacture and other reasons. A configuration was adopted in which it was buried in the axial direction of the head and cap.
（発明が解決しようとする問題点）
ところが、避雷素子は特性上ある程度の長さならびに断
面積を必要とする。この諸元は懸垂碍子構造設計面では
相当困難を伴なう値になっていた。(Problems to be Solved by the Invention) However, lightning arrester elements require a certain length and cross-sectional area due to their characteristics. These specifications were values that would pose considerable difficulties in designing the suspended insulator structure.
前記の従来構成では、頭部に埋設する場合は、碍子全長
が素子長さ分必然的に増加して碍子連として既設備へ対
応できない。また、電気的絶縁、機械的強度に対する信
頼性の低下という問題を、また笠部に埋設する場合は、
避雷素子の両端部が笠部の表面及び裏面に突出すること
になり、避雷碍子を架設時屈曲状態にて相互に連結する
際、この避雷素子の突出端部が衝突して邪魔になったり
、避雷素子の突出端部が隣接する避雷碍子の碍子本体に
著しく）Ｂ近して、電気的閃絡特性が低下するという問
題があった。また、この問題を考慮すると碍子全長が増
大し同様に既設備へ適用できないという問題点があった
。これらの点を根本的に改善するためには高性能の素子
の採用により対処する以外方法がなかった。In the conventional structure described above, when the insulator is buried in the head, the total length of the insulator inevitably increases by the length of the element, and it cannot be applied to existing equipment as an insulator chain. In addition, there are problems of decreased reliability in terms of electrical insulation and mechanical strength, and when buried in a shaded area,
Both ends of the lightning arrester will protrude from the front and back surfaces of the shade, and when the lightning arrester insulators are connected to each other in a bent state during installation, the protruding ends of the lightning arrester may collide and get in the way. There was a problem in that the protruding end of the lightning arrester element was brought extremely close to the insulator body of the adjacent lightning arrester, resulting in a decrease in electrical flash characteristics. Furthermore, when this problem is taken into consideration, the overall length of the insulator increases, and there is also the problem that it cannot be applied to existing equipment. In order to fundamentally improve these points, the only way to deal with them was to adopt high-performance elements.
発明の構成
（問題点を解決するための手段）
この発明は、前記のような問題点に着目してなされたも
のであって、碍子本体の笠部の周方向へ延びるように、
横断面が平偏状をなす避雷素子を複数個前記笠部の上面
に設けた凹所に収容し、前記凹所には避雷素子を封着す
る到着蓋を嵌合し、避雷素子の一方の電極を笠部の表面
に突出させるとともに、他方の電極を笠部の裏面に突出
させた構成を採用している。Structure of the Invention (Means for Solving the Problems) The present invention has been made by paying attention to the above-mentioned problems.
A plurality of lightning arrester elements each having a flat cross-section are housed in a recess provided on the upper surface of the shade, and an arrival cover for sealing the lightning arrester element is fitted into the recess, and one of the lightning arrester elements is fitted into the recess. A configuration is adopted in which one electrode projects from the front surface of the cap and the other electrode projects from the back surface of the cap.
（作用）
従って、この発明の避雷碍子においては、避雷素子の長
さに制約を受けることなく、所定の長さを容易に確保す
ることができるとともに、その避雷素子の両端部が碍子
本体の笠部の表裏両面がら突出しないことから、避雷碍
子を容易に連結でき、また、電気的閃絡特性の低下を防
止できると共に、碍子全長の増加を防止でき既設備へ容
易に適用できる。(Function) Therefore, in the lightning arrester of the present invention, a predetermined length can be easily secured without being subject to restrictions on the length of the lightning arrester, and both ends of the lightning arrester can be connected to the shade of the insulator body. Since the parts do not protrude from both the front and back sides, the lightning arrester can be easily connected, and it is possible to prevent deterioration of the electrical flash characteristics, as well as prevent an increase in the overall length of the insulator, and it can be easily applied to existing equipment.
（実施例）
以下、この発明を具体化した避雷碍子の一実施例を第１
図〜第４図に従って詳細に説明する。(Example) Hereinafter, a first example of a lightning arrester embodying the present invention will be described.
This will be explained in detail according to FIGS.
第１図及び第２図に示すように、碍子本体１の中央上部
にはキャップ金具２がセメント３により被冠固定され、
中央下部にはビン金具４がセメント５により挿嵌固定さ
れている。そして、このビン金具４を隣接する避雷碍子
のキャップ金具２に係合させることにより、複数個の避
雷碍子を順次直列に連結できるようになっている。As shown in FIGS. 1 and 2, a cap fitting 2 is fixed to the upper center of the insulator body 1 with cement 3.
A bottle fitting 4 is inserted and fixed at the lower center with cement 5. By engaging this bottle fitting 4 with the cap fitting 2 of an adjacent lightning arrester, a plurality of lightning arresters can be successively connected in series.
前記碍子本体１の笠部１ａ上面には環状の凹所６が形成
されている。碍子本体１の軸線とほぼ直交して横方向へ
延びるように、凹所６内には平面形はぼ四半円弧状をな
す４個の避雷素子７が収容配置され、ゴム、合成樹脂、
ガラス等の無機質材よりなる１１＠材によって凹所６内
に封着されて、さらに、磁器、ガラス等の無１質のＭ８
を同様に封着することにより素子と外気間を隔離してい
る。An annular recess 6 is formed in the upper surface of the shade portion 1a of the insulator body 1. Four lightning arrester elements 7 each having a planar shape of a semicircular arc are accommodated in the recess 6 so as to extend laterally and substantially perpendicular to the axis of the insulator body 1, and are made of rubber, synthetic resin,
The inside of the recess 6 is sealed with a material 11 made of an inorganic material such as glass, and an M8 made of inorganic material such as porcelain or glass is further sealed.
By similarly sealing the elements, the elements and the outside air are isolated.
そして、各ｙｌＩ雷素子７は続流しゃ所持性に優れた非
直線性の電圧−電流特性を示す酸化亜鉛（ＺｎＯ）を主
材として構成されている。Each ylI lightning element 7 is mainly made of zinc oxide (ZnO), which exhibits nonlinear voltage-current characteristics with excellent follow-on blocking properties.
第２図〜第４図に示すように、隣接する一対の避雷素子
７の一方の対向端部には第１′ＩＲ極９がそれぞれ設け
られ、碍子本体１の笠部１ａ表面に突出して互いに接合
されている。隣接する一対の避雷素子７の他方の対向端
部には第２電極１０がそれぞれ設けられ、碍子本体１の
笠部１ａ裏面に突出して互いに接合されている。そして
、第１電極９の上端側部にはキャップ金具２の外周から
延びる接続リード１１が接続され、第２電極１０にはピ
ン金ｌ′４４から延びる接続リード１２が接続されてい
る。As shown in FIGS. 2 to 4, a 1' IR pole 9 is provided at one opposing end of a pair of adjacent lightning arrester elements 7, and they protrude from the surface of the shade portion 1a of the insulator body 1 and are mutually connected to each other. It is joined. A second electrode 10 is provided at the other opposing end of a pair of adjacent lightning arrester elements 7, respectively, and protrudes from the back surface of the shade portion 1a of the insulator body 1 and is joined to each other. A connection lead 11 extending from the outer periphery of the cap metal fitting 2 is connected to the upper end side of the first electrode 9, and a connection lead 12 extending from the metal pin l'44 is connected to the second electrode 10.
さて、この実施例のＭ雷碍子においては、前記のように
避雷素子７が平面形四半円弧状に形成されていて、碍子
本体１の笠部１ａ上の凹所６内に横方向へ延びるように
配置されているため、避雷素子７の長さに制約を受ける
ことなく所定の長さを容易に確保することができる。ま
た、素子の厚さはより偏平とすることで薄肉化できるた
め、笠厚さもわずかな増加にとどめることができる。送
電線に過大な當サージ電圧が印加されると、各避雷素子
７に雷サージ電流が流れ、避雷素子７はその特性により
速やかに抵抗値を減じて、雷サージによる電流を放電さ
せる。又、この雷サージに継続する続流に対しては、各
避雷素子７が直ちに抵抗値を復元して絶縁を回復するの
で、続流放雷は抑シリしゃ断されて電線路は正常に復帰
する。Now, in the M lightning insulator of this embodiment, the lightning arrester element 7 is formed in a planar quarter-arc shape as described above, and extends laterally into the recess 6 on the shade portion 1a of the insulator body 1. Since the lightning arrester element 7 is arranged at a predetermined length, a predetermined length can be easily secured without being restricted by the length of the lightning arrester element 7. Furthermore, since the thickness of the element can be made thinner by making it more flat, the thickness of the cap can also be limited to a slight increase. When an excessive surge voltage is applied to the power transmission line, a lightning surge current flows through each lightning arrester element 7, and the lightning arrester element 7 quickly reduces its resistance value due to its characteristics to discharge the current caused by the lightning surge. In addition, in response to a follow-on current following this lightning surge, each lightning arrester element 7 immediately restores its resistance value and restores insulation, so that the follow-on lightning is suppressed and cut off, and the electrical line returns to normal.
なお、この発明は前記実施例の構成に限定されるもので
はなく、次のように変更して具体化することも可能であ
る。It should be noted that the present invention is not limited to the configuration of the above-mentioned embodiment, but can be modified and embodied as follows.
（１）第５図に示すように、避雷素子７を直線棒状に形
成し、これを碍子本体１の笠部１ａ上に４個埋設配置す
ること。(1) As shown in FIG. 5, the lightning arrester elements 7 are formed in the shape of straight rods, and four lightning arresters 7 are buried in the cap 1a of the insulator body 1.
（２）第３図に示すような平面形円弧状の避雷素子７を
、２個、３個又は５個以上の適数個設けること。(2) An appropriate number of planar arcuate lightning arrester elements 7 such as 2, 3, or 5 or more as shown in FIG. 3 are provided.
（３）第５図に示すような直線棒状の避雷素子７を、２
個、３個又は５個以上の適数個設けること。(3) A linear bar-shaped lightning arrester 7 as shown in FIG.
Provide an appropriate number of 1, 3, or 5 or more.
発明の効果
以上詳述したようにこの発明は、避雷素子の長さに制約
を受けることな（、所定の長さを容易に確保することが
できるとともに、その避雷素子の両端部が碍子本体の監
部の表裏両面から突出しないことから、避雷碍子を容易
に連結でき、また、電気的閃絡特性の低下を防止できる
と共に、碍子全長の増加を防止でき既設備へ容易に適用
できるという優れた効果を奏する。Effects of the Invention As detailed above, the present invention is not limited to the length of the lightning arrester (it is possible to easily secure a predetermined length, and the both ends of the lightning arrester are connected to the insulator body). Since it does not protrude from both the front and back sides of the control section, the lightning arrester can be easily connected, and it also prevents deterioration of electrical flash characteristics, prevents an increase in the overall length of the insulator, and is easy to apply to existing equipment. be effective.
第１図はこの発明を具体化した避雷碍子の一実施例を示
す斜視図、第２図はその避雷碍子の部分断面図、第３図
は避雷素子の配置構成を示す平面図、第４図は避雷素子
の両端の電極構造を拡大して示す部分斜視図、第５図は
避雷素子及びその配置構成の異なった実施例を示す平面
図である。
１・・・碍子本体、１ａ・・・監部、２・・・キャップ
金具、４・・・ピン金具、７・・・避雷素子、９・・・
第１電極、１０・・・第２電極。FIG. 1 is a perspective view showing an embodiment of a lightning arrester embodying the present invention, FIG. 2 is a partial sectional view of the lightning arrester, FIG. 3 is a plan view showing the arrangement of lightning arrester elements, and FIG. 4 5 is an enlarged partial perspective view showing the electrode structure at both ends of the lightning arrester element, and FIG. 5 is a plan view showing different embodiments of the lightning arrester element and its arrangement. DESCRIPTION OF SYMBOLS 1... Insulator body, 1a... Supervisory part, 2... Cap fitting, 4... Pin fitting, 7... Lightning arrester element, 9...
1st electrode, 10... 2nd electrode.
Claims (1)
うに、横断面が平偏状をなす避雷素子（７）を複数個前
記笠部（１ａ）の上面に設けた凹所（６）に収容し、前
記凹所（６）には避雷素子（７）を封着する封着蓋（８
）を嵌合し、避雷素子（７）の一方の電極（９）を笠部
（１ａ）の表面に突出させるとともに、他方の電極（１
０）を笠部（１ａ）の裏面に突出させたことを特徴とす
る避雷碍子。1. A recess in which a plurality of lightning arresting elements (7) each having a flat cross section are provided on the upper surface of the cap (1a) of the insulator body (1) so as to extend in the circumferential direction of the cap (1a). (6), and the recess (6) has a sealing lid (8) for sealing the lightning arrester (7).
) so that one electrode (9) of the lightning arrester (7) protrudes from the surface of the cap (1a), and the other electrode (1
0) is made to protrude from the back surface of the cap (1a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28483786A JPS63138616A (en) | 1986-11-28 | 1986-11-28 | Arresting insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28483786A JPS63138616A (en) | 1986-11-28 | 1986-11-28 | Arresting insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63138616A true JPS63138616A (en) | 1988-06-10 |
Family
ID=17683654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28483786A Pending JPS63138616A (en) | 1986-11-28 | 1986-11-28 | Arresting insulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63138616A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06103845A (en) * | 1992-09-22 | 1994-04-15 | Ngk Insulators Ltd | Manufacture of suspension type lightning arresting insulator and body of insulator |
-
1986
- 1986-11-28 JP JP28483786A patent/JPS63138616A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06103845A (en) * | 1992-09-22 | 1994-04-15 | Ngk Insulators Ltd | Manufacture of suspension type lightning arresting insulator and body of insulator |
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