JP2535299Y2 - Interphase spacer - Google Patents
Interphase spacerInfo
- Publication number
- JP2535299Y2 JP2535299Y2 JP1991055963U JP5596391U JP2535299Y2 JP 2535299 Y2 JP2535299 Y2 JP 2535299Y2 JP 1991055963 U JP1991055963 U JP 1991055963U JP 5596391 U JP5596391 U JP 5596391U JP 2535299 Y2 JP2535299 Y2 JP 2535299Y2
- Authority
- JP
- Japan
- Prior art keywords
- interphase spacer
- interphase
- spacer
- current
- rod
- 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
- Suspension Of Electric Lines Or Cables (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、架空送電線路用の相間
スペーサに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interphase spacer for an overhead transmission line.
【０００２】[0002]
【従来の技術】架空送電線のギャロッピング等による短
絡事故を防止するには、上相電線と中相電線、中相電線
と下相電線を相間スペーサで連結しておくことが有効で
ある。2. Description of the Related Art In order to prevent a short circuit accident due to galloping or the like of an overhead transmission line, it is effective to connect an upper-phase electric wire and a middle-phase electric wire, and a middle-phase electric wire and a lower-phase electric wire with an interphase spacer.
【０００３】従来、このような目的で使用される相間ス
ペーサは、絶縁体として陶磁器製の長幹碍子を使用して
いたが、陶磁器製の碍子は重量が大きいため相間スペー
サの重量が大きくなりすぎ、架空送電線への取付けが困
難であるとか、弛度が増大する等の問題があった。Conventionally, ceramic interphase spacers used for such purposes have used ceramic long-stem insulators as insulators. However, ceramic insulators are heavy, so the weight of the interphase spacer becomes too large. However, there are problems such as difficulty in attachment to overhead transmission lines and an increase in sag.
【０００４】そこで最近では絶縁体にポリマー碍子を用
いた相間スペーサが使用されるようになってきている。
ポリマー碍子はＦＲＰロッドの外周にシリコンゴム等に
より多重かさ形の絶縁体を一体成形したもので、これを
用いた相間スペーサは陶磁器製碍子を用いた相間スペー
サに比べ、重量が約１／２になる。Therefore, recently, an interphase spacer using a polymer insulator as an insulator has been used.
The polymer insulator is made by integrally molding a multi-bulk insulator around the outer circumference of the FRP rod with silicon rubber or the like. The interphase spacer using this is about half the weight of the interphase spacer using the ceramic insulator. Become.
【０００５】[0005]
【考案が解決しようとする課題】しかしながらポリマー
碍子は長期間、課電状態で使用すると、漏洩電流により
トラッキングと呼ばれる絶縁破壊が生じ、絶縁性能が徐
々に劣化するという問題がある。このためポリマー碍子
を用いた相間スペーサを長期間使用していると、最終的
には相間短絡を引き起こす危険性がある。However, when the polymer insulator is used for a long period of time in a state where power is applied, there is a problem that a dielectric breakdown called tracking occurs due to a leakage current, and the insulation performance is gradually deteriorated. For this reason, if an interphase spacer using a polymer insulator is used for a long time, there is a risk that an interphase short circuit will eventually occur.
【０００６】[0006]
【課題を解決するための手段】本考案は、上記のような
課題を解決した相間スペーサを提供するもので、その構
成は、架空送電線の異なる相の電線を把持する一対のク
ランプ間を、全長の少なくとも一部がポリマー碍子で構
成された棒状体で連結してなる相間スペーサにおいて、
前記棒状体の中間部に、その棒状体に一定値以上の電流
が流れたときに表示動作をする電流検出器を取り付けた
ことを特徴とする。SUMMARY OF THE INVENTION The present invention provides an interphase spacer which solves the above-mentioned problems, and comprises a pair of clamps for gripping wires of different phases of an overhead power transmission line. An interphase spacer in which at least a part of the entire length is connected by a rod-shaped body made of a polymer insulator,
A current detector that performs a display operation when a current of a predetermined value or more flows through the rod-shaped body is attached to an intermediate portion of the rod-shaped body.
【０００７】[0007]
【作用】ポリマー碍子の絶縁劣化は、ある時点で急速に
進行するものではなく、劣化が始まるとわずかな漏洩電
流が流れ出し、それによって劣化がわずかに進み、その
ために漏洩電流がわずかに大きくなり、さらに劣化が進
行するというように、劣化の進行はゆるやかである。し
たがってある一定値以上の漏洩電流が流れたことを電流
検出器で検出して、それを何らかの手段で表示するよう
にしておけば、ポリマー碍子の劣化が一定限度以上に進
行していることが分かるから、その時点で相間スペーサ
交換などの対策をとることが可能となる。[Function] The insulation deterioration of a polymer insulator does not proceed rapidly at a certain point in time. When the deterioration starts, a small leakage current flows, whereby the deterioration slightly progresses, and as a result, the leakage current slightly increases. The progress of deterioration is gradual, such as further progress of deterioration. Therefore, if the current detector detects that a leakage current of a certain value or more has flowed and displays it by some means, it can be understood that the deterioration of the polymer insulator has progressed beyond a certain limit. Therefore, it is possible to take measures such as replacement of the inter-phase spacer at that time.
【０００８】[0008]
【実施例】以下、本考案の実施例を図面を参照して詳細
に説明する。図１は本考案の一実施例を示す。この相間
スペーサは、架空送電線の異なる相の電線を把持する一
対のクランプ11Ａ、11Ｂを、ポリマー碍子12Ａ、12Ｂと
金属パイプ（アルミパイプまたは亜鉛メッキ鋼管など）
13を接続した棒状体14により連結した構造である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment of the present invention. This inter-phase spacer includes a pair of clamps 11A and 11B for holding electric wires of different phases of an overhead power transmission line, a polymer insulator 12A and 12B and a metal pipe (aluminum pipe or galvanized steel pipe or the like).
This is a structure in which rods 13 connected to each other are connected.
【０００９】この相間スペーサの特徴は金属パイプ13の
部分に電流検出器15が取り付けられていることである。
この電流検出器15は金属パイプ13に固定されたケース16
内に、一次コイル17を巻いた環状鉄心18と、二次コイル
19を巻いた永久磁石20とを備えている。環状鉄心18は金
属パイプ13を囲むように設置され、一次コイル17と二次
コイル19は定電圧ダイオード21により一方向に電流が流
れるようにループ状に接続されている。二次コイル19の
巻き方向は上記一方向の電流が流れると永久磁石20を減
磁する方向となっている。The feature of this interphase spacer is that the current detector 15 is attached to the metal pipe 13.
This current detector 15 is a case 16 fixed to a metal pipe 13.
Inside, an annular core 18 wound with a primary coil 17 and a secondary coil
A permanent magnet 20 wound with 19 is provided. The annular core 18 is installed so as to surround the metal pipe 13, and the primary coil 17 and the secondary coil 19 are connected in a loop by a constant voltage diode 21 so that current flows in one direction. The winding direction of the secondary coil 19 is such that the permanent magnet 20 is demagnetized when the one-way current flows.
【００１０】永久磁石20には磁性材料で形成された表示
片22が吸着されている。この表示片22は永久磁石20に吸
着しているときは図示のようにケース16内に引っ込んだ
状態にある。この状態はまだポリマー碍子12Ａ、12Ｂの
劣化が一定限度まで進行してないことを示している。A display piece 22 made of a magnetic material is attracted to the permanent magnet 20. When the display piece 22 is attracted to the permanent magnet 20, the display piece 22 is retracted into the case 16 as illustrated. This state indicates that the deterioration of the polymer insulators 12A and 12B has not yet progressed to a certain limit.
【００１１】ポリマー碍子12Ａ、12Ｂが劣化すると、ク
ランプ11Ａ、11Ｂ間の電位差により漏洩電流が流れる。
この漏洩電流が一定限度以上になると、つまりポリマー
碍子12Ａ、12Ｂの劣化が一定限度以上になると、一次コ
イル17の誘起電圧により定電圧ダイオード21が導通し、
二次コイル19に電流が流れる。すると永久磁石20が減磁
され、表示片22の吸着力が弱くなって、表示片22が自重
で落下し、その下端部がケース16の孔から外部に突出す
る。これがポリマー碍子12Ａ、12Ｂの劣化が一定限度以
上に達したことの表示である。When the polymer insulators 12A and 12B deteriorate, a leakage current flows due to a potential difference between the clamps 11A and 11B.
When this leakage current exceeds a certain limit, that is, when the deterioration of the polymer insulators 12A and 12B exceeds a certain limit, the constant voltage diode 21 conducts due to the induced voltage of the primary coil 17,
A current flows through the secondary coil 19. Then, the permanent magnet 20 is demagnetized, the attraction force of the display piece 22 is weakened, the display piece 22 falls by its own weight, and its lower end protrudes from the hole of the case 16 to the outside. This is an indication that the deterioration of the polymer insulators 12A and 12B has reached a certain limit or more.
【００１２】したがってこの表示が出たときは、相間ス
ペーサを交換する等の対策をとれば、相間短絡事故を未
然に防ぐことができる。以上は本考案の一実施例であ
り、本考案はこれに限定されるものではない。特に電流
検出器としては種々のものを利用することができる。例
えばホール素子などにより電流を検出して無線で外部に
信号を発信するものとか、検出信号を光ファイバーによ
り監視所に送るものなど、種々のタイプの電流検出器の
利用が可能である。Therefore, when this display appears, by taking measures such as replacing the interphase spacer, it is possible to prevent an interphase short circuit accident. The above is one embodiment of the present invention, and the present invention is not limited to this. In particular, various current detectors can be used. For example, various types of current detectors can be used, such as a type that detects a current using a Hall element and transmits a signal to the outside wirelessly, and a type that transmits a detection signal to a monitoring station by an optical fiber.
【００１３】[0013]
【考案の効果】以上説明したように本考案によれば、ポ
リマー碍子を用いた相間スペーサにおいて、ポリマー碍
子の劣化が一定限度以上に進行した場合に、それを検出
することができるから、その時点で相間スペーサ交換な
どの対策をとることにより、相間短絡事故を未然に防止
できるという顕著な効果がある。As described above, according to the present invention, when the deterioration of the polymer insulator has progressed beyond a certain limit in the interphase spacer using the polymer insulator, it can be detected. By taking measures such as replacement of the inter-phase spacer, there is a remarkable effect that the inter-phase short-circuit accident can be prevented beforehand.
【図１】 本考案の一実施例に係る相間スペーサを、要
部を切開して示す正面図。FIG. 1 is a front view of an interphase spacer according to an embodiment of the present invention, in which main parts are cut away.
11Ａ、11Ｂ：クランプ 12Ａ、12Ｂ：ポリマー碍子
13：金属パイプ 14：棒状体 15：電流検出器 16：ケース 17：一
次コイル 18：環状鉄心 19：二次コイル 20：永久磁石
21：定電圧ダイオード 22：表示片11A, 11B: Clamp 12A, 12B: Polymer insulator
13: Metal pipe 14: Rod 15: Current detector 16: Case 17: Primary coil 18: Annular core 19: Secondary coil 20: Permanent magnet
21: Constant voltage diode 22: Display piece
Claims (1)
一対のクランプ間を、全長の少なくとも一部がポリマー
碍子で構成された棒状体で連結してなる相間スペーサに
おいて、前記棒状体の中間部に、その棒状体に一定値以
上の電流が流れたときに表示動作をする電流検出器を取
り付けたことを特徴とする相間スペーサ。1. An interphase spacer comprising a pair of clamps for gripping electric wires of different phases of an overhead power transmission line connected by a rod having at least a part of the entire length made of a polymer insulator. An interphase spacer, wherein a current detector that performs a display operation when a current of a predetermined value or more flows through the rod-shaped body is attached to the portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991055963U JP2535299Y2 (en) | 1991-06-24 | 1991-06-24 | Interphase spacer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991055963U JP2535299Y2 (en) | 1991-06-24 | 1991-06-24 | Interphase spacer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH052535U JPH052535U (en) | 1993-01-14 |
| JP2535299Y2 true JP2535299Y2 (en) | 1997-05-07 |
Family
ID=13013741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991055963U Expired - Lifetime JP2535299Y2 (en) | 1991-06-24 | 1991-06-24 | Interphase spacer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2535299Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2690859B2 (en) * | 1994-03-29 | 1997-12-17 | 日本碍子株式会社 | Interphase spacer |
| KR100514720B1 (en) * | 2005-02-07 | 2005-09-14 | 주식회사 한국건설관리공사 | A power cable space for power transmission tower |
| JP4550711B2 (en) * | 2005-10-11 | 2010-09-22 | 古河電気工業株式会社 | Interphase spacer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7535613U (en) * | 1975-11-08 | 1976-05-06 | Rosenthal Technik Ag, 8672 Selb | Device for preventing mechanical vibrations on high-voltage overhead lines |
| JPS5789924A (en) * | 1980-11-27 | 1982-06-04 | Kikuchi Kasei:Kk | Separation and recovery of synthetic resin waste lined with backing |
-
1991
- 1991-06-24 JP JP1991055963U patent/JP2535299Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH052535U (en) | 1993-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |