JPS5855726B2 - Conduit aerial power transmission line - Google Patents
Conduit aerial power transmission lineInfo
- Publication number
- JPS5855726B2 JPS5855726B2 JP5831676A JP5831676A JPS5855726B2 JP S5855726 B2 JPS5855726 B2 JP S5855726B2 JP 5831676 A JP5831676 A JP 5831676A JP 5831676 A JP5831676 A JP 5831676A JP S5855726 B2 JPS5855726 B2 JP S5855726B2
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- power transmission
- transmission line
- conduit
- cylindrical conductor
- 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
Links
Landscapes
- Installation Of Bus-Bars (AREA)
Description
【発明の詳細な説明】 本発明は管路気中送電線に関するものである。[Detailed description of the invention] The present invention relates to a conduit aerial power transmission line.
一般に管路気中送電線の工事製造単位は１０〜１２ｍで
ある。Generally, the construction and manufacturing unit of a pipeline aerial power transmission line is 10 to 12 meters.
これを現地に運搬し、接続しながら布設を行い、接続は
溶接によって行なわれている。These are transported to the site and installed while being connected, and the connections are made by welding.
したがって内部円筒を通電導体とする場合はこれも現地
溶接を行うことになる。Therefore, if the inner cylinder is to be used as a current-carrying conductor, it must also be welded on-site.
しかし、この方法では絶縁空間に溶接ゴミ等を混入させ
るおそれがあり、これを避るために内部円筒導体に撚線
導体を引込み通電導体とすることが考えられている。However, with this method, there is a risk that welding dust or the like may be mixed into the insulating space, and in order to avoid this, it has been considered to draw a stranded wire conductor into the inner cylindrical conductor to make it a current-carrying conductor.
しかし、裸撚線導体の場合は内部円筒導体と撚線導体間
で分流が生じ、このための弊害が生じる。However, in the case of a bare stranded conductor, a shunt occurs between the inner cylindrical conductor and the stranded conductor, which causes problems.
そこで、被覆撚線導体を引込めば分流現象はなくなるが
、今度はより線と内部円筒を同電位にするための電気的
な接続が必要になる。Therefore, if the coated stranded wire conductor is withdrawn, the shunt phenomenon will disappear, but this time an electrical connection is required to bring the stranded wire and the inner cylinder to the same potential.
本発明は前記した従来技術の欠点を解消し、安定した性
能の管路気中送電線を提供することを目的とし、その要
旨は内部円筒導体と撚線導体の分流現象を防止するため
に撚線導体を被覆しかつ同電位に保つための電気的連絡
を行うことにある。The present invention aims to eliminate the drawbacks of the prior art described above and provide a conduit aerial power transmission line with stable performance. The purpose is to cover the line conductors and provide electrical communication to keep them at the same potential.
添付図面において、１は内部円筒導体、２は撚線導体、
５は外部円筒導体である。In the accompanying drawings, 1 is an internal cylindrical conductor, 2 is a stranded conductor,
5 is an outer cylindrical conductor.
ここで撚線導体２には絶縁被覆３が施されており、かつ
内部円筒導体１の中央部近傍に位置する個所には絶縁被
覆３の代わりに金属リングもしくは半導電性被覆４が内
部円筒導体１に接するように設けられている。Here, the stranded conductor 2 is provided with an insulating coating 3, and instead of the insulating coating 3, a metal ring or a semiconductive coating 4 is provided at a location near the center of the internal cylindrical conductor 1. 1.
又、内部円筒導体１と外部円筒導体５の空間には高気圧
絶縁気体６が封入されている。Further, a high pressure insulating gas 6 is filled in the space between the inner cylindrical conductor 1 and the outer cylindrical conductor 5.
この場合半導電性被覆４は例えば１０２乃至１０１０５
Ｑ程度の高抵抗を有しており、そのため分流現象はほと
んど見られずしかも電位的には撚線導体２と内部円筒導
体１との連絡を保つことができる。In this case, the semiconductive coating 4 is, for example, 102 to 10105
It has a high resistance on the order of Q, so that the shunting phenomenon is hardly observed, and the connection between the stranded wire conductor 2 and the inner cylindrical conductor 1 can be maintained in terms of potential.
又、金属リング４の場合でも、内部円筒導体１の中央部
近傍において部分的に導電部分４が設けられているのみ
なので、導電部分４の抵抗が低くとも（例えば１．５μ
、ＱｃｒｒＬ）分流に対する懸念はない。Furthermore, even in the case of the metal ring 4, the conductive portion 4 is only partially provided near the center of the inner cylindrical conductor 1, so even if the resistance of the conductive portion 4 is low (for example, 1.5μ
, QcrrL) There is no concern about shunting.
本発明の管路気中送電線によれば次のような顕著な効果
を有する。The conduit aerial power transmission line of the present invention has the following remarkable effects.
（１）裸撚線導体を引込む場合は不特定な多点接触とな
り、熱伸縮等により接触点が解難しアークが生じる恐れ
がある。(1) When a bare stranded wire conductor is drawn in, there will be unspecified multi-point contact, and there is a risk that the contact points will break due to thermal expansion and contraction, causing an arc.
しかし本発明によれば、内部円筒導体の中央部近傍で一
点接触（厳密には多点接触であるが、裸撚線導体の場合
と比べはるかに接触点の数が少い）となるため、分流が
ほとんどなく、特に半導電性被覆を使用した場合は抵抗
が高いためまったく分流を無視することができる。However, according to the present invention, there is a single point contact (strictly speaking, it is a multi-point contact, but the number of contact points is much smaller than in the case of a bare stranded wire conductor) near the center of the internal cylindrical conductor. There is almost no shunt current, and especially when a semiconductive coating is used, the resistance is so high that the shunt current can be completely ignored.
また、撚線導体引込みの際に金属同志の接触がないため
、金属粒子の発生もない。Further, since there is no metal-to-metal contact when the stranded conductor is drawn in, metal particles are not generated.
（２）絶縁被覆撚線導体を引込んだ場合に比べ撚線導体
と内部円筒導体との電位を共通するための工事手段が不
要であり、現場作業が容易である。(2) Compared to the case where an insulated stranded wire conductor is drawn in, there is no need for construction means to commonize the potential between the stranded wire conductor and the internal cylindrical conductor, and site work is easier.
第１図は本発明の一実施例を示す縦断面図、第２図はそ
の横断面図である。
１：内部円筒導体、２：撚線導体、３：絶縁被覆、４：
金属リングまたは半導電性被覆、５：外部円筒導体、６
：高圧の絶縁気体。FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view thereof. 1: Internal cylindrical conductor, 2: Stranded conductor, 3: Insulation coating, 4:
Metal ring or semiconductive coating, 5: External cylindrical conductor, 6
: High pressure insulating gas.
Claims (1)
状に保持し、高気圧絶縁気体を封入してなる管路気中送
電線において、内部円筒導体内に電流通電体である被覆
撚線導体が挿入されており、内部円筒導体の中央部近傍
において部分的に被覆撚線導体の被覆が金属リングまた
は半導電性被覆により構成されていることを特徴とする
管路気中送電線。1. In a conduit aerial power transmission line formed by holding an outer cylindrical conductor and an inner cylindrical conductor coaxially with an insulating support and enclosing a high-pressure insulating gas, a coated stranded wire conductor that is a current carrying body is inside the inner cylindrical conductor. 1. A conduit aerial power transmission line characterized in that the inner cylindrical conductor is partially inserted in the vicinity of the center thereof, and the covering of the covered stranded wire conductor is partially constituted by a metal ring or a semiconductive covering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5831676A JPS5855726B2 (en) | 1976-05-20 | 1976-05-20 | Conduit aerial power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5831676A JPS5855726B2 (en) | 1976-05-20 | 1976-05-20 | Conduit aerial power transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52140881A JPS52140881A (en) | 1977-11-24 |
| JPS5855726B2 true JPS5855726B2 (en) | 1983-12-12 |
Family
ID=13080846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5831676A Expired JPS5855726B2 (en) | 1976-05-20 | 1976-05-20 | Conduit aerial power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5855726B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56144429U (en) * | 1980-03-31 | 1981-10-31 | ||
| JPS5836109A (en) * | 1981-08-28 | 1983-03-03 | 古河電気工業株式会社 | Gas insulating cable |
| JP2001224120A (en) * | 2000-02-09 | 2001-08-17 | Mitsubishi Electric Corp | Gas-insulated bus |
-
1976
- 1976-05-20 JP JP5831676A patent/JPS5855726B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52140881A (en) | 1977-11-24 |
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