JPH0664957B2 - Arc extinguishing horn - Google Patents
Arc extinguishing hornInfo
- Publication number
- JPH0664957B2 JPH0664957B2 JP62160656A JP16065687A JPH0664957B2 JP H0664957 B2 JPH0664957 B2 JP H0664957B2 JP 62160656 A JP62160656 A JP 62160656A JP 16065687 A JP16065687 A JP 16065687A JP H0664957 B2 JPH0664957 B2 JP H0664957B2
- Authority
- JP
- Japan
- Prior art keywords
- horn
- arc
- arc extinguishing
- gas
- fuse
- 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.)
- Expired - Lifetime
Links
Landscapes
- Insulators (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は碍子を電撃から防護するのみならず、電撃時に
続流を遮断して停電事故を防止することができるアーク
消弧ホーンに関するものである。Description: TECHNICAL FIELD The present invention relates to an arc extinguishing horn that not only protects an insulator from electric shock but also interrupts a follow current during electric shock to prevent a power failure accident. is there.
（従来の技術） 送電線あるいは配電線において電線を支持する碍子装置
には、電撃から碍子を保護するためのアークホーンが取
付けられている。このようなアークホーンは電撃時にア
ークホーン相互間でアーク放電を行わせることによって
碍子が破壊されることを防止するものであるが、一旦ア
ークが形成されるとその後に大電流の続流が流れること
は防止できず、このため送電ラインの遮断器等が作動し
て停電事故に至ることがあった。しかるに近年ではコン
ピューター等のＯＡ機器の拡大により停電はもとより瞬
間的な送電停止でさえも大きな社会問題とされる機会が
多く、従来のアークホーンのように単に碍子保護機能を
有するのみならず、停電回避機能をも併せ持ったアーク
ホーンが求められていた。(Prior Art) An arc horn for protecting an insulator from an electric shock is attached to an insulator device that supports an electric wire in a power transmission line or a distribution line. Such an arc horn prevents destruction of the insulator by causing arc discharge between the arc horns during electric shock, but once an arc is formed, a large current follow-up current flows. This could not be prevented, and as a result, the circuit breaker, etc. of the power transmission line was activated, which could lead to a power outage accident. However, in recent years, due to the expansion of OA equipment such as computers, there are many occasions where not only power outages but also momentary power interruptions are regarded as a major social problem, and not only does it have an insulator protection function like conventional arc horns, but also power outages. There was a need for an arc horn that also had an avoidance function.
（発明が解決しようとする問題点） 本発明は上記のような従来の問題点を解消して、電撃か
ら碍子を保護するとともに、アークが形成された後の続
流を直ちに遮断して停電事故を防止することができるア
ーク消弧ホーンを目的として完成されたものである。(Problems to be Solved by the Invention) The present invention solves the conventional problems as described above, protects the insulator from electric shock, and immediately shuts off the follow-up current after the arc is formed, thereby causing a power failure accident. It was completed for the purpose of arc extinguishing horn that can prevent the above.
（問題点を解決するための手段） 上記の問題点を解消するためになされた本発明は、碍子
に取付けられるホーン本体の先端に、内部に絶縁性の高
い高圧ガスが封入されかつ口部を故障電流により溶解さ
れる肉厚とした圧力容器を取付け、その周囲を難燃性絶
縁材料で絶縁被覆し、この絶縁被覆に容器の口部に達す
るガス放出孔を透設し、該ガス放出孔の内部にヒューズ
を装着したことを特徴とするものである。(Means for Solving the Problems) The present invention, which has been made to solve the above problems, has a horn main body attached to an insulator, in which a high-pressure gas having a high insulating property is enclosed and a mouth is provided. A thick pressure vessel that can be melted by a fault current is attached, the surrounding area is insulation-coated with a flame-retardant insulating material, and a gas-releasing hole reaching the mouth of the vessel is transparently provided through this insulation coating. It is characterized in that a fuse is mounted inside the.
（実施例） 次に本発明を図示の実施例について詳細に説明する。(Example) Next, this invention is demonstrated in detail about the Example shown in figure.
第１図において、(1)は送電線支持用の耐張式の碍子、
(2)はその接地側金具、(3)はライン側金具、(4)は本発
明のアーク消弧ホーン、(5)は通常のアークホーンであ
る。このアーク消弧ホーン(4)は第２図、第３図に拡大
して示したように、ホーン本体(6)の先端の拡径部(7)に
SF6、ガス、CO2ガスのような絶縁性の高い高圧ガスを数
十気圧の圧力で封入したガスボンベ状の圧力容器(8)を
取付けたものである。圧力容器(8)はその口部を故障電
流により溶解される肉厚としてあり、かつその外周先端
部をエチレンプロピレンゴムのような難燃性絶縁材料か
らなる絶縁被覆(9)によってカバーされている。この絶
縁被覆(9)には圧力容器(8)の口部に達するガス放出孔(1
0)が透設されている。そしてこのガス放出孔(10)の内部
には、低融点合金からなるヒューズ(11)が充填されてい
る。ヒューズ(11)の先端はヒューズを保護し、かつ通絡
させやすくするために設けた絶縁被覆(9)の先端の凹部
(12)の中心からわずかに突出させてあり、電撃時にはこ
のヒューズ(11)を通ってアークの閃絡経路が形成され、
ヒューズ(11)および圧力容器(8)の先端部分がアークの
高熱によって溶けて圧力容器(8)内の絶縁性の高圧ガス
がガス放出孔(10)から噴出する構造となっている。In FIG. 1, (1) is a tension-type insulator for supporting a transmission line,
(2) is the grounding side metal fitting, (3) is the line side metal fitting, (4) is the arc extinguishing horn of the present invention, and (5) is a normal arc horn. This arc extinguishing horn (4) is attached to the enlarged diameter portion (7) at the tip of the horn body (6) as shown in the enlarged view of FIGS. 2 and 3.
It is equipped with a gas cylinder-shaped pressure vessel (8) in which a high-insulating high-pressure gas such as SF 6 , gas, and CO 2 gas is sealed at a pressure of several tens of atmospheres. The pressure vessel (8) has a wall whose thickness is melted by a fault current, and its outer peripheral tip is covered with an insulating coating (9) made of a flame-retardant insulating material such as ethylene propylene rubber. . This insulating coating (9) has gas release holes (1) that reach the mouth of the pressure vessel (8).
0) is transparently installed. A fuse (11) made of a low melting point alloy is filled in the gas discharge hole (10). The tip of the fuse (11) is a recess at the tip of the insulating coating (9) that is provided to protect the fuse and to make it easier to connect.
It is made to project slightly from the center of (12), and at the time of electric shock, a flashover path of the arc is formed through this fuse (11),
The fuse (11) and the tip of the pressure vessel (8) are melted by the high heat of the arc, and the insulating high-pressure gas in the pressure vessel (8) is ejected from the gas discharge hole (10).
なお第３図に示すように、絶縁被覆(9)の先端には半径
方向にもガス抜き孔(13)を設け、急激なガス放出による
絶縁被覆(9)の破壊を防止するとともに、絶縁性ガスが
より広い範囲に噴出されるようにしてもよい。As shown in FIG. 3, a gas vent hole (13) is also provided at the tip of the insulating coating (9) in the radial direction to prevent damage to the insulating coating (9) due to sudden gas release and to improve the insulating property. The gas may be jetted to a wider area.
圧力容器(8)の口部形状は第４図〜第６図に示すように
種々のものがある。第４図は先端に折れ易い突起(14)を
設けたもの、第５図は薄肉部(15)を形成したもの、第６
図は低融点合金による封止部(16)を設けたものである。
いずれの形式のものも、電撃時はホーン間に流れる故障
電流でこれらの口部を溶解させて内部の高圧ガスを噴出
させるもので、突起(14)の径および高さあるいは薄肉部
(15)の肉厚は圧力容器(8)の材質を鉄とした場合、下記
の実験式で求めることができる。There are various shapes of the mouth of the pressure vessel (8) as shown in FIGS. FIG. 4 shows a tip provided with a fragile protrusion (14), and FIG. 5 shows a thin portion (15) formed.
In the figure, a sealing portion (16) made of a low melting point alloy is provided.
In either type, during electrical shock, these currents are melted by a fault current flowing between the horns to eject high-pressure gas inside, and the diameter and height of the protrusion (14) or the thin-walled part
The wall thickness of (15) can be obtained by the following empirical formula when the material of the pressure vessel (8) is iron.
アークによる鉄の容損量≒0.0059×Ａ×Ｔ−2.6但し、
溶損量：ｇ、Ａ：想定する短絡電流(A)、Ｔ：想定する
通電時間（秒） またヒューズ(11)および低融点合金の融点は気温、太陽
熱によるアークホーンの温度上昇を考慮して70℃以上と
するのが望ましい。Loss of iron due to arc ≒ 0.0059 x A x T-2.6 However,
Melting loss: g, A: Assumed short-circuit current (A), T: Assumed energizing time (seconds) In addition, the melting point of the fuse (11) and low melting point alloy is taken into consideration the temperature rise of the arc horn due to temperature and solar heat. A temperature of 70 ° C or higher is desirable.
（作用） このように構成されたものは、第１図に示されるように
碍子(1)に取付けて使用されるものであり、電撃時にア
ークホーン(5)との間を通絡させることによって碍子(1)
が破壊されることを防止することは従来のアークホーン
と変るところはない。(Operation) The one configured in this manner is used by being attached to the insulator (1) as shown in FIG. 1, and is connected to the arc horn (5) at the time of electric shock by Insulator (1)
It is no different from the conventional arc horn to prevent the destruction of the.
しかし本発明のアーク消弧ホーンにおいては、電撃時に
は絶縁被覆(9)のガス放出孔(10)の先端から頭を突出さ
せたヒューズ(11)、圧力容器(8)、ホーン本体(6)を通っ
て閃絡経路が形成されることとなるため、アーク電流に
よってヒューズ(11)および圧力容器(8)の先端の突起(1
4)、薄肉部(15)あるいは封止部(16)が溶解して圧力容器
(8)の内部のSF6ガスのような絶縁性の高圧ガスがガス放
出孔(10)を経て高速度で前方へ噴射される。このように
して噴射された絶縁性ガスはその高速、高圧のガス流に
よって直ちにアークを吹き消すので、アークが形成され
た経路を伝って流れようとする続流は遮断されることと
なり、大電流の続流によって変電所等の遮断器が動作す
ることによる停電事故を未然に防止できることとなる。
特にSF6ガスを用いた場合には、化学的、熱的安定性に
優れるうえ不活性、不燃性で絶縁耐力にも優れ、消弧性
能が高いので、最も確実にアークを吹き消すことが可能
となる。However, in the arc extinguishing horn of the present invention, at the time of electric shock, the fuse (11) whose head is projected from the tip of the gas discharge hole (10) of the insulating coating (9), the pressure vessel (8), and the horn body (6) are provided. Since a flashover path is formed through the arc current, the arc current causes a protrusion (1) at the tip of the fuse (11) and pressure vessel (8).
4), the thin wall part (15) or the sealing part (16) melts and pressure vessel
Insulating high-pressure gas such as SF 6 gas inside (8) is injected forward at high speed through the gas discharge hole (10). The insulating gas injected in this way immediately blows off the arc by the high-speed, high-pressure gas flow, so that the follow-up flow that tries to flow along the path in which the arc is formed is interrupted, and a large current flows. It is possible to prevent a power failure accident due to the operation of a circuit breaker in a substation, etc.
Especially when SF 6 gas is used, it has excellent chemical and thermal stability, as well as inertness, non-combustibility and excellent dielectric strength, and has high arc extinguishing performance, so it is possible to blow out the arc most reliably. Becomes
なお第７図、第８図に示したように、ホーン本体(6)の
先端に複数本の圧力容器(8)を並列に配置しけておけ
ば、多重雷あるいは複数回の電撃の都度アークの消弧作
用を行わせることができる。これはアークはいずれかひ
とつのヒューズ(11)だけを通って通絡する性質を利用し
たものであって、最初のヒューズ(11)が溶融した後の電
撃時には他のヒューズ(11)に通絡して溶融し、絶縁性ガ
スを噴出させるものである。As shown in Fig. 7 and Fig. 8, if multiple pressure vessels (8) are arranged in parallel at the tip of the horn body (6), multiple arcs are generated each time multiple lightning strikes or multiple electric shocks occur. Can be extinguished. This is due to the fact that the arc is struck through only one of the fuses (11), and the other fuse (11) is struck during an electric shock after the first fuse (11) is melted. It is then melted and an insulating gas is ejected.
（発明の効果） 本発明は以上の説明からも明らかなように、現行のアー
クホーンと同様に碍子が電撃によって破壊されることを
防止できることは勿論、電撃時には圧力容器からSF6ガ
スのような絶縁性の高圧ガスを噴射することによってア
ークを直ちに吹き消し、アークが形成された経路を伝っ
て流れようとする続流を遮断することができる。このた
め本発明のアーク消弧ホーンを用いれば続流による停電
事故の発生を未燃に防止することができ、コンピュータ
ー等のＯＡ機器に対する影響を最少限にとどめることが
できる。しかも本発明のアーク消弧ホーンは碍子装置へ
の取付けが容易であること、極めて安価に製作できるこ
と、圧力容器の内部に絶縁性の高圧ガスを封入したので
長期間にわたり安定した性能を有すること等の利点もあ
る。よって本発明は従来の問題点を一掃したアーク消弧
ホーンとして、産業の発展に寄与するところは極めて大
である。(Effect of the Invention) The present invention, as is apparent from the above description, of course be possible to prevent the insulator as well as the current arcing horn is destroyed by the shock, the shock at the time, such as SF 6 gas from the pressure vessel By injecting the insulating high-pressure gas, the arc can be immediately extinguished, and the follow-up flow that tries to flow along the path in which the arc is formed can be interrupted. Therefore, by using the arc extinguishing horn of the present invention, it is possible to prevent the occurrence of a power failure accident due to a follow-up current, and to minimize the influence on OA equipment such as a computer. Moreover, the arc extinguishing horn of the present invention is easy to attach to the insulator device, can be manufactured at extremely low cost, and has a stable performance for a long period because the insulating high pressure gas is enclosed in the pressure vessel. There are also advantages. Therefore, the present invention is an arc extinguishing horn that eliminates the conventional problems, and has a great contribution to industrial development.
第１図は本発明の実施例を示す一部切欠正面図、第２図
は要部の一部切欠正面図、第３図はその変形例を示す一
部切欠正面図、第４図、第５図、第６図は本発明に用い
られる圧力容器の口部を示す要部断面図、第７図は他の
実施例の要部を示す断面図、第８図はその側面図であ
る。 (1)：碍子、(6)：ホーン本体、(8)：圧力容器、(9)：絶
縁被覆、(10)：ガス放出孔、(11)：ヒューズFIG. 1 is a partially cut-away front view showing an embodiment of the present invention, FIG. 2 is a partially cut-away front view of an essential part, and FIG. 3 is a partially cut-away front view showing a modified example thereof. 5 and 6 are sectional views showing the main part of the mouth of the pressure vessel used in the present invention, FIG. 7 is a sectional view showing the main part of another embodiment, and FIG. 8 is a side view thereof. (1): Insulator, (6): Horn body, (8): Pressure vessel, (9): Insulation coating, (10): Gas release hole, (11): Fuse
Claims (3)
内部に絶縁性の高い高圧ガスが封入されかつ口部を故障
電流により溶解される肉厚とした圧力容器を取付け、そ
の周囲を難燃性絶縁材料で絶縁被覆し、この絶縁被覆に
容器の口部に達するガス放出孔を透設し、該ガス放出孔
の内部にヒューズを装着したことを特徴とするアーク消
弧ホーン。1. A tip of a horn body attached to an insulator,
A high-pressure gas container with high insulating properties is filled inside, and a mouth is attached with a thick pressure vessel that is melted by a fault current.The surrounding area is insulation-coated with a flame-retardant insulating material. An arc extinguishing horn, characterized in that a gas discharge hole reaching the above portion is provided through and a fuse is mounted inside the gas discharge hole.
の範囲第１項記載のアーク消弧ホーン。2. The arc extinguishing horn according to claim 1, wherein a plurality of pressure vessels are arranged in parallel.
突出させた特許請求の範囲第１項記載のアーク消弧ホー
ン。3. The arc extinguishing horn according to claim 1, wherein the tip of the fuse is slightly projected from the gas discharge hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62160656A JPH0664957B2 (en) | 1987-06-27 | 1987-06-27 | Arc extinguishing horn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62160656A JPH0664957B2 (en) | 1987-06-27 | 1987-06-27 | Arc extinguishing horn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS646331A JPS646331A (en) | 1989-01-10 |
| JPH0664957B2 true JPH0664957B2 (en) | 1994-08-22 |
Family
ID=15719651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62160656A Expired - Lifetime JPH0664957B2 (en) | 1987-06-27 | 1987-06-27 | Arc extinguishing horn |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0664957B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015007071A1 (en) * | 2013-07-16 | 2015-01-22 | Wang Jufeng | Lightning protection gap device for segmental arc extinguishing at different voltage classes |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2926291B2 (en) * | 1993-05-31 | 1999-07-28 | 関西電力株式会社 | Subsequent break arc horn |
| JPH0714594U (en) * | 1993-08-03 | 1995-03-10 | 日本碍子株式会社 | Arc horn |
| CN102856021B (en) * | 2012-09-27 | 2014-11-05 | 王巨丰 | Follow current-free arc lightening-protection gap protection device |
| JP6355490B2 (en) * | 2014-09-02 | 2018-07-11 | 関西電力株式会社 | Continuous current interrupting device and arc horn device |
| CN104332828B (en) * | 2014-11-13 | 2016-05-04 | 王巨丰 | A kind of energy continuous flashover of defence or the repeatedly arc extinguishing lightning protection clearance apparatus of flashover |
| CN104701735B (en) * | 2015-02-10 | 2016-09-14 | 王巨丰 | Repeat thunder and cut arc lightning protection device |
| RU2668992C9 (en) * | 2017-04-07 | 2018-12-25 | Общество С Ограниченной Ответственностью "Мзва" (Ооо "Мзва") | INDICATOR OF OVERLAPPING OF INSULATORS OF OVERHEAD POWER LINES WITH A VOLTAGE OF 6–1150 kV |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5710074U (en) * | 1980-06-17 | 1982-01-19 | ||
| JPS59214180A (en) * | 1983-05-18 | 1984-12-04 | 中国電力株式会社 | Continuous current breaking flash over display unit |
| JPS61208766A (en) * | 1985-03-13 | 1986-09-17 | 冨田 正雄 | Continuous current breaker for distribution line |
-
1987
- 1987-06-27 JP JP62160656A patent/JPH0664957B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015007071A1 (en) * | 2013-07-16 | 2015-01-22 | Wang Jufeng | Lightning protection gap device for segmental arc extinguishing at different voltage classes |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS646331A (en) | 1989-01-10 |
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