JPS6310486A - Destruction detection for gapless arrester - Google Patents
Destruction detection for gapless arresterInfo
- Publication number
- JPS6310486A JPS6310486A JP15390686A JP15390686A JPS6310486A JP S6310486 A JPS6310486 A JP S6310486A JP 15390686 A JP15390686 A JP 15390686A JP 15390686 A JP15390686 A JP 15390686A JP S6310486 A JPS6310486 A JP S6310486A
- Authority
- JP
- Japan
- Prior art keywords
- insulator
- resistance element
- nonlinear resistance
- gapless arrester
- zinc oxide
- 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.)
- Granted
Links
- 230000006378 damage Effects 0.000 title claims description 7
- 238000001514 detection method Methods 0.000 title claims description 5
- 239000012212 insulator Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 10
- 230000015556 catabolic process Effects 0.000 claims 2
- 230000020169 heat generation Effects 0.000 claims 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 39
- 239000011787 zinc oxide Substances 0.000 description 20
- 239000011810 insulating material Substances 0.000 description 4
- 229910001006 Constantan Inorganic materials 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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】
（発明の技術分野）
本発明は、ケーブル防食層や絶縁接続部の絶縁筒をサー
ジ電圧より保護するためのギャップレスアレスタが破壊
されているか否かを検出する方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a method for detecting whether or not a gapless arrester for protecting a cable anti-corrosion layer or an insulating cylinder of an insulated connection part from surge voltage has been destroyed.
（発明の技術的背景とその問題点）
最近ではケーブル防食層保護装置として、絶縁体にて覆
われているケース内に非線形抵抗素子である酸化亜鉛素
子を収納した構造のギャップレスアレスタが多用されて
いる。(Technical background of the invention and its problems) Recently, gapless arresters, which have a structure in which a zinc oxide element, which is a nonlinear resistance element, is housed in a case covered with an insulator have been frequently used as a cable protection layer protection device. There is.
かかる構造のギャップレスアレスタは、ケーブルシース
等にサージ電圧が侵入した場合脱時にこのサージ電圧に
て酸化亜鉛素子が破壊し、サージ電流を放電する。しか
し、ケーブル防食層保護袋けは酸化亜鉛素子が絶縁体に
て覆われているため外部より当該酸化亜鉛素子が破壊さ
れているか否かを知ることができないので、活線状態で
ギャップレスアレスタを点検することは困難である。In a gapless arrester having such a structure, when a surge voltage enters the cable sheath or the like, the zinc oxide element is destroyed by the surge voltage when the cable sheath is removed, and a surge current is discharged. However, since the zinc oxide element in the cable anti-corrosion protective bag is covered with an insulator, it is impossible to tell from the outside whether the zinc oxide element has been damaged or not, so inspect the gapless arrester while the line is live. It is difficult to do so.
温度検知用のヒユーズを備える表示器をギャップレスア
レスタに付加し、酸化亜鉛素子の破壊時に発生する熱に
よるヒユーズの溶断にて酸化亜鉛素子が破壊されている
か否かを検知することが行われているが、表示器の窓部
が短期間で汚れたり誤って防食テープが巻き付けられる
等の問題がある上に窓部より水分が入り込んで酸化亜鉛
素子が劣化してしまう虞れがある。An indicator equipped with a fuse for temperature detection is added to the gapless arrester to detect whether or not the zinc oxide element is destroyed by the fuse blowing due to the heat generated when the zinc oxide element is destroyed. However, there are problems such as the window of the display becoming dirty in a short period of time or the anticorrosive tape being wrapped incorrectly, and there is also a risk that moisture may enter through the window and deteriorate the zinc oxide element.
（発明の目的）
本発明の目的は、ギャップレスアレスタの非線形抵抗素
子が破壊されているか否かを活線状態において簡単に検
出することができるギャップレスアレスタの破壊検出方
法を提供することにある。(Object of the Invention) An object of the present invention is to provide a gapless arrester destruction detection method that can easily detect whether or not a nonlinear resistance element of a gapless arrester is destroyed in a live wire state.
（発明の概要）
本発明は、ギャップレスアレスタの非線形抵抗素子がサ
ージ電圧にて破壊された場合短絡電流により発熱し、非
線形抵抗素子に固定されている接続端子とバネ部材を介
して間接的に接続されている接続端子との間で温度差が
生じる点に着目してなされたもので、絶縁体の両接続端
子近傍部分の温度差を熱電対や示温ラベル等により検知
することにより非線形抵抗素子が破壊されているか否か
を検出することを特徴とする。(Summary of the Invention) The present invention provides that when a nonlinear resistance element of a gapless arrester is destroyed by a surge voltage, heat is generated due to a short circuit current, and the nonlinear resistance element is indirectly connected via a connecting terminal fixed to the nonlinear resistance element and a spring member. This method was developed by focusing on the fact that there is a temperature difference between the two connecting terminals of the insulator, and the nonlinear resistance element is It is characterized by detecting whether or not it has been destroyed.
（発明の実施例）
以下、本発明の実施例を図面を参照して詳細に説明する
。(Embodiments of the Invention) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図には破壊の有無を点検すべきギャップレスアレス
タの一例が示されている。即ち、このギャップレスアレ
スタはケースｌを備え、このケースｌはガラスＭＡ維強
化プラスチック（ＦＲＰ）から形成され、その−側には
酸化亜鉛素子２が収納されている。酸化亜鉛素子２の一
方の端面ば電極板３Ａに当接され、この電極板３Ａには
接続端子４が導電性接着剤を介して直接的に固着されて
いる。また、酸化亜鉛素子２の他方の端面には電極板３
Ｂが当接され、この電極板３Ｂには他の電極板３Ｃが対
向している。電極板３Ａと電極板３Ｃとはケース１の両
端面にそれぞれ固着されており、電極板３Ｂと電極板３
Ｃとの間にはバネ部材５が配されている。従って、酸化
亜鉛素子２の両端面には電極板３Ａ、３Ｂが弾性的に当
接している。電極板３Ｃには他の接続端子６が導電性接
着剤を介して直接的に固着されている。そして、ケース
１及び再接続端子４．６上にはエポキシ樹脂をモールド
して成る絶縁体７が設けられている。FIG. 1 shows an example of a gapless arrester to be inspected for damage. That is, this gapless arrester includes a case 1, which is made of glass MA fiber reinforced plastic (FRP), and a zinc oxide element 2 is housed on the negative side thereof. One end surface of the zinc oxide element 2 is brought into contact with an electrode plate 3A, and a connecting terminal 4 is directly fixed to the electrode plate 3A via a conductive adhesive. Further, an electrode plate 3 is provided on the other end surface of the zinc oxide element 2.
B is in contact with this electrode plate 3B, and another electrode plate 3C is opposed to this electrode plate 3B. The electrode plate 3A and the electrode plate 3C are fixed to both end surfaces of the case 1, respectively, and the electrode plate 3B and the electrode plate 3
A spring member 5 is disposed between C and C. Therefore, the electrode plates 3A and 3B are elastically in contact with both end surfaces of the zinc oxide element 2. Another connection terminal 6 is directly fixed to the electrode plate 3C via a conductive adhesive. An insulator 7 made of molded epoxy resin is provided on the case 1 and the reconnection terminal 4.6.
かかる構造のギャップレスアレスタは、例えば、絶縁接
続部の防食層より突出している一対のシース端子間にリ
ード線を介して接続端子４．６を接続することにより、
絶縁接続部の絶縁筒保護装置として用いられる。A gapless arrester having such a structure can, for example, connect a connecting terminal 4.6 via a lead wire between a pair of sheath terminals protruding from the anti-corrosion layer of the insulating connection part.
Used as an insulation cylinder protection device for insulation connections.
一方、本発明方法に用いられる熱電対１０は、第２図に
示すように、押圧体１１．１２を有し、各押圧体は、第
３図に示すように、３〜１０ｍｍの肉厚を有する断熱材
１３とこの断熱材１３にラミネートされているＰＶＣフ
ィルム１４とから成る。そして、熱電対１０を構成して
いる複数本のコンスタンタン線１５及び銅線１６は交互
に直列に接続され、基準接点となる接続部は押圧体１１
の断熱材１３とフィルム１４間に固定的に配され、測温
接点となる接続部は押圧体１２の断熱材１３とフィルム
１４間に固定的に配されている。On the other hand, the thermocouple 10 used in the method of the present invention has pressing bodies 11 and 12, as shown in FIG. 2, and each pressing body has a wall thickness of 3 to 10 mm, as shown in FIG. It consists of a heat insulating material 13 and a PVC film 14 laminated to the heat insulating material 13. The plurality of constantan wires 15 and copper wires 16 constituting the thermocouple 10 are alternately connected in series, and the connection portion serving as a reference junction is connected to the pressing body 11.
A connecting portion serving as a temperature measuring contact is fixedly arranged between the heat insulating material 13 of the pressing body 12 and the film 14.
そして、両端側のコンスタンタン線１５は第１図に示す
ように、直流電圧測定器１７に接続されている。The constantan wires 15 at both ends are connected to a DC voltage measuring device 17, as shown in FIG.
次に、本発明の破壊検出方法を説明する。Next, the destruction detection method of the present invention will be explained.
即ち、第１図に示すように、ギャップレスアレスタの接
続端子４．６側に位置する絶縁体７の傾斜面に、各押圧
体１１．１２を押し付ける。この押し付けに際しては手
（指）を介して人体の温度が熱電対１０に伝わるのを防
止するため、断熱材１３を持ってフィルム１４側を絶縁
体７に押し付ける。That is, as shown in FIG. 1, each pressing body 11.12 is pressed against the inclined surface of the insulator 7 located on the connection terminal 4.6 side of the gapless arrester. During this pressing, in order to prevent the temperature of the human body from being transmitted to the thermocouple 10 through the hand (finger), the film 14 side is pressed against the insulator 7 while holding the heat insulating material 13.
ケーブルのシースにサージ電圧が侵入していない場合に
は酸化亜鉛素子２に短絡電流が流れないことから、当該
酸化亜鉛素子２が発熱することがなく、従って、抑圧体
１１．１２の絶縁体７への押し付は位置において温度差
が生じていない。When no surge voltage enters the sheath of the cable, no short circuit current flows through the zinc oxide element 2, so the zinc oxide element 2 does not generate heat, and therefore the insulator 7 of the suppressor 11.12 There is no temperature difference between the positions when pressed.
よって、熱電対１０には熱起電力が発生していないので
、直流電圧測定器１７による測定で酸化亜鉛素子２が破
壊されていないことを検出することができる。Therefore, since no thermoelectromotive force is generated in the thermocouple 10, it can be detected by measurement by the DC voltage measuring device 17 that the zinc oxide element 2 is not destroyed.
これに対して、サージ電圧の侵入により酸化亜鉛素子２
が破壊し、短絡電流が流れると、酸化亜鉛素子２が発熱
するので、抑圧体１２の絶縁体７への押し付は位置が高
温になる。従って、押圧体１１．１２の押し付は位置に
温度差が生じ、熱電対１０に熱起電力が発生するので、
この熱起電力を直流電圧測定器１７にて測定することが
できる。よって、これにより酸化亜鉛素子２が破壊され
ているのを検出することができる。On the other hand, due to the intrusion of surge voltage, the zinc oxide element 2
When the zinc oxide element 2 is broken and a short circuit current flows, the zinc oxide element 2 generates heat, and the position of the suppressor 12 pressed against the insulator 7 becomes high temperature. Therefore, when the pressing bodies 11 and 12 are pressed, a temperature difference occurs between the positions, and a thermoelectromotive force is generated in the thermocouple 10.
This thermoelectromotive force can be measured by the DC voltage measuring device 17. Therefore, it is possible to detect that the zinc oxide element 2 is destroyed.
第４図には本発明方法の他の実施例が示され。FIG. 4 shows another embodiment of the method of the invention.
絶縁体７の傾斜面には示温ラベル１８．１８’が貼り付
けられている。このような状態において、酸化亜鉛素子
２がサージ電圧の侵入で破壊し、短絡電流にて発熱する
と、示温ラベル１８′の貼り付は位置が高温になり、そ
の示指温度が高くなる。従って、両示温ラベル１．８．
１８′の示す温度の差を視認することにより醸化亜鉛素
子２の破壊の有無を知ることができる。A temperature label 18, 18' is attached to the inclined surface of the insulator 7. In such a state, if the zinc oxide element 2 is destroyed by the surge voltage and generates heat due to the short circuit current, the temperature indicator 18' will become hot at the location where it is attached, and the indicator temperature will become high. Therefore, both temperature labels 1.8.
By visually observing the temperature difference indicated by 18', it is possible to know whether or not the zinc fermentation element 2 is broken.
（発明の効果）
本発明によれば、絶縁体にて覆われているケース内の非
線形抵抗素子がサージ電圧にて破壊されて短絡電流によ
り発熱した場合絶縁体の両接続端子近傍部で生じる温度
差を検知するようにしたので、活線状態のケーブルであ
っても非線形抵抗素子が破壊されているか否かを確実に
検出することができる。(Effects of the Invention) According to the present invention, when a nonlinear resistance element in a case covered with an insulator is destroyed by a surge voltage and generates heat due to a short circuit current, the temperature generated near both connection terminals of the insulator Since the difference is detected, it is possible to reliably detect whether or not the nonlinear resistance element is destroyed even in a live cable.
第１図は本発明方法により破壊の有無が点検されるギヤ
・ツブレスアレスタの断面図、第２図及び第３図は本発
明方法に用いられる熱電対の全体的構成図と一部を断面
して示す図、第４図は本発明方法の他の実施例を示す図
である。
２−−−−一−−−−酸化亜鉛素子、
４．６−−−−−−−接続端子、
ｉ ｏ−−一−−−−−熱電対、
１１．１２−−−−一押圧体、
１ｓ−−−−−一−−コンスタンタン線、１６−−−−
−−−−銅線。
（他１名）
第 １ 図
：Ｊり
２−−−−−一−−−５ｅ化亜１１ＴＬ子４．６−−−
−−−一接代塙子
１０−−−−−−−−熱電対
１１．１２−−−一−−押圧体
１５−−−一−−−−コンスタンタノ徨１６−−−−−
−−−誦諜Fig. 1 is a cross-sectional view of a gear splint arrester that is inspected for damage by the method of the present invention, and Figs. 2 and 3 are an overall configuration diagram and a partial cross-section of a thermocouple used in the method of the present invention. FIG. 4 is a diagram showing another embodiment of the method of the present invention. 2-----1-----Zinc oxide element, 4.6-----Connecting terminal, io--1--Thermocouple, 11.12--1 Pressing body , 1s-----Constantan line, 16----
-----Copper wire. (1 other person) Figure 1: Jri 2-----1----5e Kaa 11TL child 4.6----
--- One contact point 10 --- Thermocouple 11.12 --- One -- Pressing body 15 --- One --- Constant number 16 ---
---Recitation
Claims (1)
非線形抵抗素子と、該非線形抵抗素子の一端面に固定さ
れて前記絶縁体より突出している一方の接続端子と、前
記非線形抵抗素子の他端面にバネ部材を介して接続され
て前記絶縁体より突出している他方の接続端子とを備え
るギャップレスアレスタの前記非線形抵抗素子の破壊の
有無を検出する方法であって、前記非線形抵抗素子の破
壊時の短絡電流による発熱にて前記絶縁体の前記両接続
端子近傍部で生じる温度差を検知することを特徴とする
ギャップレスアレスタの破壊検出方法。 ２、前記絶縁体の前記両接続端子近傍部の温度差を熱電
対にて検知することを特徴とする特許請求の範囲第 １
項に記載のギャップレスアレスタの破壊検出方法。 ３、前記絶縁体の前記両接続端子近傍部に示温ラベルを
貼り付けてこれら近傍部の温度差を検知することを特徴
とする特許請求の範囲第１項に記載のギャップレスアレ
スタの破壊検出方法。[Claims] 1. A nonlinear resistance element housed in a case covered with an insulator, and one connection terminal fixed to one end surface of the nonlinear resistance element and protruding from the insulator. and the other connection terminal connected to the other end surface of the nonlinear resistance element via a spring member and protruding from the insulator, the method for detecting the presence or absence of destruction of the nonlinear resistance element of a gapless arrester. A method for detecting breakdown of a gapless arrester, comprising: detecting a temperature difference generated near both connection terminals of the insulator due to heat generation due to a short circuit current when the nonlinear resistance element breaks down. 2. A thermocouple is used to detect the temperature difference in the vicinity of both the connection terminals of the insulator.
Destruction detection method for gapless arrester described in Section 1. 3. The method for detecting breakdown of a gapless arrester according to claim 1, characterized in that a temperature label is attached to a portion of the insulator near both the connection terminals, and a temperature difference between these portions is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61153906A JP2540518B2 (en) | 1986-06-30 | 1986-06-30 | Destruction detection method for gear press press arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61153906A JP2540518B2 (en) | 1986-06-30 | 1986-06-30 | Destruction detection method for gear press press arrester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6310486A true JPS6310486A (en) | 1988-01-18 |
| JP2540518B2 JP2540518B2 (en) | 1996-10-02 |
Family
ID=15572688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61153906A Expired - Lifetime JP2540518B2 (en) | 1986-06-30 | 1986-06-30 | Destruction detection method for gear press press arrester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2540518B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8027920B1 (en) | 1999-11-10 | 2011-09-27 | Mei, Inc. | Value transaction systems |
| JP2012160537A (en) * | 2011-01-31 | 2012-08-23 | Tokyo Electric Power Co Inc:The | Lightning arrester |
| JP2018010906A (en) * | 2016-07-12 | 2018-01-18 | 岡谷電機産業株式会社 | Arrester |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59230172A (en) * | 1983-06-13 | 1984-12-24 | Mitsubishi Electric Corp | Detecting method of deterioration of lightning arrester |
-
1986
- 1986-06-30 JP JP61153906A patent/JP2540518B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59230172A (en) * | 1983-06-13 | 1984-12-24 | Mitsubishi Electric Corp | Detecting method of deterioration of lightning arrester |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8027920B1 (en) | 1999-11-10 | 2011-09-27 | Mei, Inc. | Value transaction systems |
| JP2012160537A (en) * | 2011-01-31 | 2012-08-23 | Tokyo Electric Power Co Inc:The | Lightning arrester |
| JP2018010906A (en) * | 2016-07-12 | 2018-01-18 | 岡谷電機産業株式会社 | Arrester |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2540518B2 (en) | 1996-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4649364A (en) | Bifunctional environment sensor | |
| US3588689A (en) | Variable impedance system for electrical cable fault locating and temperature monitoring | |
| DK0523901T3 (en) | Battery with integrated condition tester | |
| JP2601046B2 (en) | Temperature sensor | |
| JPS5937773B2 (en) | temperature detection device | |
| US6787718B2 (en) | Device, method, and system for detecting the presence of liquid in proximity to electronic components | |
| JPS6310486A (en) | Destruction detection for gapless arrester | |
| JP2005024385A (en) | Pressure sensitive sensor | |
| CN211783946U (en) | Temperature acquisition device and electric energy meter | |
| CN212646786U (en) | Electric energy meter capable of measuring temperature in real time | |
| US2941149A (en) | Electrical instrument protectors | |
| KR102283300B1 (en) | Terminal thermal detecting apparatus | |
| CN218299156U (en) | Temperature sensing cable and fire alarm system | |
| US5015988A (en) | Temperature probe | |
| CN212963757U (en) | Temperature sensing element, temperature measurement component and battery pack | |
| JP2572246Y2 (en) | Water leak detection device | |
| JPH0323789Y2 (en) | ||
| JPH0727562Y2 (en) | Battery pack | |
| JPH04155275A (en) | Method for identifying electrical wiring terminal | |
| ITVR980073A1 (en) | TEMPERATURE DETECTOR ASSOCIATED WITH THE CONNECTION TERMINALS OF MODULAR ELECTRICAL EQUIPMENT. | |
| CN117769125A (en) | Flexible circuit board and manufacturing method thereof | |
| CN115131936A (en) | Temperature sensing cable and fire alarm system | |
| JP2019052874A (en) | Battery temperature measurement probe and battery temperature detection device | |
| HUP9702249A2 (en) | Overvoltage arrester | |
| JPS628459A (en) | Detection terminal of fuel cell |