JPS62290308A - Steel tower - Google Patents
Steel towerInfo
- Publication number
- JPS62290308A JPS62290308A JP61131785A JP13178586A JPS62290308A JP S62290308 A JPS62290308 A JP S62290308A JP 61131785 A JP61131785 A JP 61131785A JP 13178586 A JP13178586 A JP 13178586A JP S62290308 A JPS62290308 A JP S62290308A
- Authority
- JP
- Japan
- Prior art keywords
- power line
- tower
- ground wire
- overhead ground
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims description 11
- 239000010959 steel Substances 0.000 title claims description 11
- 239000012212 insulator Substances 0.000 claims description 15
- 238000009413 insulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000001010 compromised effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Suspension Of Electric Lines Or Cables (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】
3、発明の詳細な説明
〔発明の目的〕
(産業上の利用分野)
本発明は鉄塔に係り、特に変電所における雷災害防止に
関する。Detailed Description of the Invention 3. Detailed Description of the Invention [Object of the Invention] (Field of Industrial Application) The present invention relates to steel towers, and particularly to prevention of lightning disasters in substations.
(従来の技術)
従来の変電所の鉄塔は第2図に示すように、鉄塔の支持
部1の頂−ヒに架空地線2を支え、鉄塔の支持部1にが
いし連4によって架空地線2の下側に電力線3が支持さ
れている。A点およびB点において電力線3には変電所
用の機器1例えば変圧器、蓮断器、避雷器、計器用変圧
器及び計器用変流器などが接続される。また架空、1!
2については雷撃が直接に電力線3に落ちないように上
述のように電力線3の上側に設けられてシールド効果を
得るようになっている。(Prior Art) As shown in Fig. 2, a conventional substation tower supports an overhead ground wire 2 at the top of a support section 1 of the tower, and connects the overhead ground wire with an insulator 4 to the support section 1 of the tower. A power line 3 is supported below 2. At points A and B, substation equipment 1 such as a transformer, a disconnector, a lightning arrester, an instrument transformer, an instrument current transformer, etc. are connected to the power line 3 at points A and B. Another fictitious one!
2 is provided above the power line 3 to obtain a shielding effect, as described above, to prevent lightning strikes from directly hitting the power line 3.
(発明が解決しようとする問題点)
第2図において、P点にt4に!があって、鉄塔の支持
部1及び架空地線2に雷撃電流が流れるとP点の電位が
衝撃的に上昇してがいし連4の支持点Qの電位もほぼそ
れに比例して上昇する。すると、がいし連4の両端には
FM ’A性電電圧印加され、この衝撃性電圧が、がい
し連4の両端間の破壊電圧以上になると、ここでせん絡
してしまう。すると電力線3に雷撃サージ電圧が侵入し
てA点、B点に接続されている変電所用機器の絶縁をお
びやかすことになる6
本発明は上記の点を考慮してなされたもので、その目的
とするところは、架空地線の鉄塔の支持部に直撃の雷撃
があっても変電所用機器の絶縁を什かすことを防止した
鉄塔を提供することにある。(Problem to be solved by the invention) In Figure 2, at point P and t4! When a lightning current flows through the support part 1 of the steel tower and the overhead ground wire 2, the potential at point P increases impulsively, and the potential at the support point Q of the insulator chain 4 also increases almost proportionally. Then, an FM'A electric voltage is applied to both ends of the insulator chain 4, and when this impact voltage exceeds the breakdown voltage between both ends of the insulator chain 4, a flashover occurs. As a result, lightning surge voltage enters the power line 3 and threatens the insulation of the substation equipment connected to points A and B.6 The present invention has been made in consideration of the above points, and has achieved its purpose. The object of the present invention is to provide a steel tower that prevents the insulation of substation equipment from being compromised even if a direct lightning strike occurs on the supporting part of the tower for an overhead ground wire.
(問題点を解決するための手段と作用)変電所に設ける
鉄塔を架空地線を支える支持塔とこれと並設した別の電
力線支持塔にがいし連によって電力線を支えて架空地線
の下側に電力線を配設して形成し、この電力線に変電所
の譜電気機器を接続することにより、もし、架空地線を
支える支持塔に雷撃があっても、電力線側の電力線支持
塔は別に設けられるとともに電力線は架空地線の下側に
設けられているため、従来発生したようながいし連の両
端間に衝撃性電圧が印加されることなく、従ってがいし
連が雷撃によってせん絡することを防止することができ
るため、この電力線に接続されている諸電気機器の絶縁
は損われることがないことを特徴とする。(Means and effects for solving the problem) A steel tower installed in a substation is installed to support the overhead ground wire, and another power line support tower installed in parallel with this tower supports the power line with an insulator chain to support the power line below the overhead ground wire. By arranging and forming a power line on the power line and connecting the substation's electrical equipment to this power line, even if the support tower supporting the overhead ground wire is struck by lightning, the power line support tower on the power line side can be installed separately. In addition, since the power line is installed below the overhead ground wire, there is no impact voltage applied between both ends of the insulator chain, which occurs in the past, and this prevents the insulator chain from being shattered by lightning strikes. Because it can do so, the insulation of various electrical devices connected to this power line is not impaired.
(実施例)
以下本発明の鉄塔の一実施例を第1図を参照して説明す
る。第2図と同一部分は同符号を付しである。変電所に
鉄塔の支持塔10の頂点に架空地線2を支え、この支持
塔10と並設して電力線支持塔11を設ける。この電力
線支持塔11にはがいし連4を介して電力線3を支え、
この電力線3は架空地線2の下側に配設される。またこ
の電力線3のA点、B点には変電所の図示しないが諸電
気機器が接続される。(Example) An example of the steel tower of the present invention will be described below with reference to FIG. The same parts as in FIG. 2 are given the same reference numerals. An overhead ground wire 2 is supported at the top of a support tower 10 of a steel tower in a substation, and a power line support tower 11 is provided in parallel with this support tower 10. This power line support tower 11 supports the power line 3 via the insulator 4,
This power line 3 is arranged below the overhead ground wire 2. Furthermore, various electric devices (not shown) of a substation are connected to points A and B of this power line 3.
もし、架空地線2を支える支持塔10のP点に雷撃があ
って、P点の電位が衝撃的に上昇しても、電力線3をが
いし連4を介して支える電力線支持塔11は支持塔10
と別に並設されており、また架空地線2の下側に電力線
2が配設されているため、電力線支持塔11の電位は上
昇しない。従って、がいし連4の両端間には雷撃による
衝撃性電圧は印加されずに1両端間はせん絡するような
ことは防止される。Even if there is a lightning strike at point P of the support tower 10 that supports the overhead ground wire 2 and the potential at point P rises shockingly, the power line support tower 11 that supports the power line 3 via the insulator 4 is 10
Since the power line 2 is arranged separately and in parallel with the overhead ground wire 2, and the power line 2 is arranged below the overhead ground wire 2, the potential of the power line support tower 11 does not rise. Therefore, an impact voltage due to a lightning strike is not applied between both ends of the insulator chain 4, and a flashover between both ends of the insulator chain 4 is prevented.
以上説明したように本発明によれば、架空地線を支える
支持塔と別に並設した電力線支持塔にがいし連を介して
電力線を支え、架空地線の下側に電力線が位置するよう
に配設されることによって、変電所において架空地線ま
たはこれを支える支持塔にT:!堂があっても、電力線
支持塔の電力線を支えるがいし連の両端間にはWI撃性
電位が印加されず、従ってがいし連のせん絡が防止され
、電力線に雷撃サージ電圧が侵入することが防止され、
電力線に接続される諸電気機器の絶縁破壊を防止できる
鉄塔を提供することができる。As explained above, according to the present invention, the power line is supported via an insulator chain on a power line support tower installed in parallel with the support tower supporting the overhead ground wire, and the power line is arranged below the overhead ground wire. By installing T:! on the overhead ground wire or the support tower supporting it at the substation. Even if there is a power line, no WI shock potential is applied between both ends of the insulator chain that supports the power line of the power line support tower, thus preventing the insulator chain from flashing and preventing lightning surge voltage from entering the power line. is,
It is possible to provide a steel tower that can prevent insulation breakdown of various electrical devices connected to power lines.
第1図は本発明の鉄塔の正面図、第2図は従来の鉄塔の
正面図である。FIG. 1 is a front view of a steel tower according to the present invention, and FIG. 2 is a front view of a conventional steel tower.
Claims (1)
の電力線支持塔にがいし連を介して電力線を支え前記架
空地線の下側に前記電力線を配設したことを特徴とする
鉄塔。The power line is supported by a support tower supporting an overhead ground wire, and a separate power line support tower installed in parallel with the support tower through an insulator chain, and the power line is disposed below the overhead ground wire. Steel tower.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61131785A JPS62290308A (en) | 1986-06-09 | 1986-06-09 | Steel tower |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61131785A JPS62290308A (en) | 1986-06-09 | 1986-06-09 | Steel tower |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62290308A true JPS62290308A (en) | 1987-12-17 |
Family
ID=15066088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61131785A Pending JPS62290308A (en) | 1986-06-09 | 1986-06-09 | Steel tower |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62290308A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH093324A (en) * | 1995-06-19 | 1997-01-07 | Taisei Plus Kk | Thermoplastic elastomer composition excellent in fusibility |
-
1986
- 1986-06-09 JP JP61131785A patent/JPS62290308A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH093324A (en) * | 1995-06-19 | 1997-01-07 | Taisei Plus Kk | Thermoplastic elastomer composition excellent in fusibility |
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