JPS58147102A - Deterioration detector for arrester - Google Patents
Deterioration detector for arresterInfo
- Publication number
- JPS58147102A JPS58147102A JP2991782A JP2991782A JPS58147102A JP S58147102 A JPS58147102 A JP S58147102A JP 2991782 A JP2991782 A JP 2991782A JP 2991782 A JP2991782 A JP 2991782A JP S58147102 A JPS58147102 A JP S58147102A
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- arrester
- lightning arrester
- deterioration
- deterioration detection
- 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
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- Thermistors And Varistors (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】
〔発明の技術分野〕
本発明はギャップレス避雷器において、特にそのフィー
ルドでの劣化を自動的に検出し得るようにして保守の省
略化を図つ喪避雷器の劣化検出装置に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a deterioration detection device for a gapless surge arrester, and particularly to a deterioration detection device for a gapless surge arrester, which can automatically detect deterioration in the field and thereby simplify maintenance. .
近年、変電所等の電気所においてはそこに備えられる機
器を、雷或いは開閉時の過渡過電圧のようなサージ性の
異常電圧から保饅するために、ギャップレス避雷器が多
く用いられている。In recent years, gapless lightning arresters have been widely used in electrical stations such as substations to protect equipment there from surge-like abnormal voltages such as lightning or transient overvoltages during switching.
第１図は、従来のギヤ、ブレス避雷器の構成例を示すも
のである０図において、避雷器は非直線性の良いＺｎＯ
非直線抵抗体を複数個積重ねてなる抵抗体柱１を、碍子
尋の絶縁容器２内に収納し、その高圧側端子を送電線路
３に接続し、ま要談地側端子を抵抗体４を介して接地し
ている。さらに、抵抗体４と並列に断路器５を設けてい
る。Figure 1 shows an example of the configuration of a conventional gear and breath arrester.
A resistor column 1 consisting of a plurality of stacked non-linear resistors is housed in an insulating container 2 made of insulator, and its high voltage side terminal is connected to the power transmission line 3, and the ground side terminal is connected to the resistor 4. It is grounded through. Further, a disconnector 5 is provided in parallel with the resistor 4.
かかるギヤ、ｆレス避雷器において、その劣化に対する
保守診断は次のようにして行なっている。つまり、抵抗
体柱１に流れる電流は容量性電流と抵抗分電流とに大別
されるが、図示の如（コンデンサ６．１を用いて容量性
電流を差動アンプ８により消去し、その出力である抵抗
分電＠ｐの大きさを測定することにより、劣化の有無を
判断するようにしている。なお、図において１０は保護
ギヤ、！である。Maintenance diagnosis for deterioration of such a gear and f-less lightning arrester is performed as follows. In other words, the current flowing through the resistor column 1 is roughly divided into a capacitive current and a resistive current. The presence or absence of deterioration is determined by measuring the magnitude of the resistive voltage distribution @p.In the figure, 10 is a protection gear, !.
然し乍ら、かかる従来の劣化検出においては、以下のよ
うな問題がある。第１ｔ−ｊ、劣化を自動的に検出する
ことができないことである。つま抄、上述した劣化検出
は通ｉ断路器５を閉じて運転しているものを、保守点検
時にそれを開いて抵抗体４を流れる電流を測定する方法
である丸め、保守点検の周期が適切でないと意味がない
が、多数の避雷器を適切な間隔にて保守点検する仁とは
不可能に近い。However, such conventional deterioration detection has the following problems. First t-j is the inability to automatically detect deterioration. To summarize, the deterioration detection described above is a method of operating with the disconnector 5 closed, then opening it during maintenance and inspection and measuring the current flowing through the resistor 4. Otherwise, it would be meaningless, but it would be nearly impossible to maintain and inspect a large number of lightning arresters at appropriate intervals.
第２は、抵抗分電流の大きさく波高値）を正確に一定す
ることは、技術的に極めて難かしい場合が多い、つまり
、容量性電流に比較して抵抗分電流が小さｂため、容量
性電流の消去法、抵抗体柱！以外の漏れ電流の存在およ
び系統電圧の歪等によって抵抗分電流が変動し、本来の
抵抗分電流を測定することは困難である。Second, it is often technically extremely difficult to accurately maintain the magnitude (peak value) of the resistive current.In other words, since the resistive current is small compared to the capacitive current, How to eliminate current, resistor pillar! The resistance current fluctuates due to the presence of other leakage currents and distortion of the system voltage, making it difficult to measure the original resistance current.
本発明は上記のような事情に鑑みて成されたもので、そ
の目的は避雷器の劣化の有無を自動的に検出して保守の
省略化を図ることができる構成の簡単な避雷器の劣化検
出装置を提供することにある。The present invention was made in view of the above-mentioned circumstances, and its purpose is to provide a deterioration detection device for a lightning arrester with a simple configuration that can automatically detect the presence or absence of deterioration of the lightning arrester and omit maintenance. Our goal is to provide the following.
上記目的を達成するために、本発明では、予定側の抵抗
体を積重ねて成る抵抗体柱を絶縁容器内に収納して構成
したギヤラグレス避雷器において、前記避雷器の接地側
に設けられた抵抗体と、この抵抗体の温度上昇に応動し
該温度が所定値以上となったことを検出して劣化検出信
号を出力する熱応動要素とから構成したことを特徴とす
る。In order to achieve the above object, the present invention provides a gear lagless lightning arrester configured by storing a resistor column formed by stacking resistors on a scheduled side in an insulating container, in which a resistor column provided on the ground side of the arrester and a thermally responsive element that responds to the temperature rise of the resistor, detects that the temperature has exceeded a predetermined value, and outputs a deterioration detection signal.
以下、本発明を図面に示す一実施例についてＷｉ明する
。第２図は１本発明による避雷器の劣化検出装置の構成
例を示したもので、第１図と同一部分）ＣＦｉ同一符号
を付してその観明を省略する。つまり、本装置は抵抗体
柱１を絶縁容器１内に収納して成るギヤラグレス避雷器
の接地側に抵抗体１ノを設け、この抵抗体１１の上部に
千０１１ｆ上昇に応動する熱応動素子として、金属片１
２．１３にて所定値以上の温度で溶融する低融点金属１
４をはさみ込んで成るものを図示の如く増付け、且つ該
低融点金属１４の溶融により継電器接点１５′ｔｌ−短
絡して、劣化検出信号を接点端子１６より出力するよう
に構成したものである。ま走、ここで１２〜Ｉｇから熱
応動要素を構成し、上記抵抗体１１と共に容器Ｊｉ内に
収納している。さらに、上記劣化検出信号は接点端子７
ｇより図示しない伝送手段により、変電盤室等の場所に
伝送され警報表示し得るようにしている。なお、低融点
金属１４としてはハンダ等で、融点が５０〜２００℃の
範囲のものを用いる。An embodiment of the present invention illustrated in the drawings will be explained below. FIG. 2 shows an example of the configuration of a deterioration detection device for a lightning arrester according to the present invention, and the same parts as those in FIG. In other words, in this device, a resistor 1 is provided on the ground side of a gear lagless surge arrester that includes a resistor column 1 housed in an insulating container 1, and a thermally responsive element that responds to a rise of 1,011 f is placed above the resistor 11. metal piece 1
2.13 Low melting point metal 1 that melts at a temperature higher than a predetermined value
4 is added as shown in the figure, and the relay contact 15'tl is short-circuited by the melting of the low melting point metal 14, and a deterioration detection signal is output from the contact terminal 16. . 12 to Ig constitute a thermally responsive element, which is housed together with the resistor 11 in a container Ji. Further, the deterioration detection signal is transmitted to the contact terminal 7.
g, the signal is transmitted to a location such as a substation panel room or the like by a transmission means (not shown) so that an alarm can be displayed. Note that as the low melting point metal 14, a material such as solder having a melting point in the range of 50 to 200° C. is used.
かかる如く構成した劣化検出装置において、避雷器に劣
化がない状態では抵抗体柱１に流れる抵抗分電流は小さ
い。よって、その電流に対する抵抗体１１、金属片１２
の温度上昇は小さく、低融点金属１４は溶融しない。ま
た、仮りに大きな雷また紘開閉サージにより避雷器が動
作して抵抗体柱１が発熱した場合においても、抵抗体Ｉ
ＩのＩ−Ｒ降下によシ保護ギャップ１０が放電するよう
にしであるため、避雷器の動作が誤ってその劣化と誤検
出されることはない。In the deterioration detection device configured as described above, the resistance current flowing through the resistor column 1 is small when there is no deterioration in the lightning arrester. Therefore, the resistor 11 and metal piece 12 against the current
The temperature rise is small, and the low melting point metal 14 does not melt. In addition, even if the arrester is activated due to large lightning or a surge surge, the resistor column 1 generates heat.
Since the protection gap 10 is caused to discharge due to the I-R drop of I, the operation of the lightning arrester will not be erroneously detected as deterioration.
一方、避雷器が劣化し抵抗体柱１の抵抗分電流が増大し
て基準値を超えると、抵抗体柱１および抵抗体１ノの温
度が上昇し、金属片１２の温度も上昇する。これにより
、低融点金属１４の温度が上昇してその融点温度以上に
なると、これが溶融して金属片１３が落下して接点１５
と短絡される。そして、これによる劣化検出信号が接点
端子１６よシ、図示しない伝送手段−にて蜜電盤室等の
場所に伝送され、警報表示して劣化の有ることが自動的
に検出されることとなる。On the other hand, when the lightning arrester deteriorates and the resistance current of the resistor column 1 increases and exceeds the reference value, the temperature of the resistor column 1 and the resistor 1 increases, and the temperature of the metal piece 12 also increases. As a result, when the temperature of the low melting point metal 14 rises and exceeds its melting point temperature, it melts and the metal piece 13 falls, causing the contact 15
is short-circuited. The resulting deterioration detection signal is transmitted through the contact terminal 16 to a location such as the electrical panel room through a transmission means (not shown), and an alarm is displayed to automatically detect the presence of deterioration. .
このように、予定側のＺｎＯ抵抗体を積重ねて成る抵抗
体柱１を絶縁容器２内に収納して構成したゼヤッデレス
避雷器において、上記避雷器の接地側に般けられた抵抗
体１１と、との抵抗体１１の温度上昇に応動し骸温度が
所定値以上となったことを検出して劣化検出信号を出力
する熱応動要素とから、劣化検出装置を構成したもので
ある。In this way, in the Zeyaddeless lightning arrester constructed by housing the resistor column 1 formed by stacking ZnO resistors on the intended side in the insulating container 2, the resistor 11 placed on the ground side of the arrester and the A deterioration detection device is constituted by a thermally responsive element that responds to the temperature rise of the resistor 11, detects that the body temperature has exceeded a predetermined value, and outputs a deterioration detection signal.
従って、避雷器の劣化を自動的に検出し得る友め、その
旨の警報が発せられるまで保守をする必要がなくなる。Therefore, since deterioration of the lightning arrester can be automatically detected, there is no need for maintenance until an alarm to that effect is issued.
まな、上記理由によシ従来のように適切な間隔で避雷器
を保守することが不要となるため、保守の省略化を図っ
て多数の避雷器の保守を極めて容易に行なうことが可能
と々る。さらに、上記の如く金属片、継電器接点等のみ
から装置を構成しているため、構成が極めて簡単で信頼
性、経済的にも優れたものである。Furthermore, for the above-mentioned reason, it is no longer necessary to maintain the lightning arresters at appropriate intervals as in the past, so it is possible to simplify the maintenance and to perform maintenance of a large number of lightning arresters extremely easily. Furthermore, since the device is constructed from only metal pieces, relay contacts, etc. as described above, the construction is extremely simple and excellent in reliability and economy.
尚、本発明は上記実施例に限定されるものではない。Note that the present invention is not limited to the above embodiments.
（１）上記では、金属片１２．１３および低融点金属１
４を低抗体１１の上部に取付けたが。(1) In the above, metal piece 12.13 and low melting point metal 1
4 was attached to the top of the low antibody 11.
第３図に示すように抵抗体１１の下部に取付ける構成と
してもよく、この場合には接点端子１６には高電圧が印
加されない念め、より安全にして劣化を検出することが
できる。As shown in FIG. 3, it may be attached to the lower part of the resistor 11. In this case, since no high voltage is applied to the contact terminal 16, deterioration can be detected more safely.
（２）熱応動素子として、上記金属片および低融点金属
に代えて、第４図のようにサーモスタット１８を用い、
その作動により劣化を検出するようにしてもよい。(2) As a thermally responsive element, a thermostat 18 is used as shown in FIG. 4 instead of the metal piece and low melting point metal,
Deterioration may be detected by its operation.
（３） 第５図に示すように、前記第２図の抵抗体１
１と直列に抵抗体１９を設け、避雷器が劣化してその検
出信号が得られた場合に、断路器２０を開いて抵抗体１
９に流れる電流を接点端子ｚ１よシ取出して測定するこ
とにより、避雷器の劣化状況を定量的に把握することが
できる。(3) As shown in FIG. 5, the resistor 1 shown in FIG.
A resistor 19 is installed in series with the resistor 1, and when the arrester deteriorates and a detection signal is obtained, the disconnector 20 is opened and the resistor 1 is connected to the resistor 1.
By taking out and measuring the current flowing through contact terminal 9 through contact terminal z1, it is possible to quantitatively understand the deterioration status of the lightning arrester.
以上ｆｆｌ明したように本発明）てよれば、避雷器Ｃ劣
化の有無を自動的に検出して保守の省略化を図ることが
できる構成が簡単で極めて信頼性の高い避雷器の劣化検
出装置が提供できる。As explained above, according to the present invention, there is provided a deterioration detection device for a lightning arrester that has a simple configuration and is extremely reliable, which can automatically detect the presence or absence of deterioration of the lightning arrester C and omit maintenance. can.
第１図は従来の避雷器の劣化検出装置を示す図、第２図
は本発明の一実権例を示す構成図、第３図〜第５図は本
発明の他の実施例を示す構成図である。
１・・・抵抗体柱、２・・絶縁容器、３・・送電線路、
４．１１．１９・・・抵抗体、５，２０ ・断路器、ｌ
、１・・コンデンサ、８・・差動アン！、９・・・抵抗
分電流、１０ 保護イヤ、！、１１．１３・・・金属片
、Ｉ４−低融点金属、１５・・継電器接点、１６．１１
・・接点端子、１１・・容器、１８・・サーモスタット
。
出願人代理人 弁理士 鈴 江 武 彦第１図
第２図FIG. 1 is a diagram showing a conventional deterioration detection device for a lightning arrester, FIG. 2 is a block diagram showing one practical example of the present invention, and FIGS. 3 to 5 are block diagrams showing other embodiments of the present invention. be. 1... Resistor column, 2... Insulating container, 3... Power transmission line,
4.11.19...Resistor, 5,20 ・Disconnector, l
, 1... Capacitor, 8... Differential amplifier! , 9...Resistance current, 10 Protective ear,! , 11.13...Metal piece, I4-Low melting point metal, 15...Relay contact, 16.11
...Contact terminal, 11..Container, 18..Thermostat. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2
Claims (1)
縁容器内に収納して構成したギャップレス避雷器におい
て、前記避雷器の接地側に設けられ大抵抗体と、この抵
抗体の温度上昇に応動し該温度が所定値以上となったこ
とを検出して劣化検出信号を出力する熱応動要素とを具
備したことを特徴とする避雷器の劣化検出装置。 ＠ 抵抗体の近傍に低融点金属を設け、これ−１！融す
ることによプ継電器接点を短絡するようｋし大特許請求
の範囲第（１）項記載の避雷器の劣化検出装置。 ０） 抵抗体の近傍にナーモスク、トを設け、これが作
動することによル継電器接点を短絡するようｋした特許
請求の範囲第（１）項記載の避雷ＩＩＯ劣化楡出装曾。(1) In a gapless surge arrester constructed by housing a resistor column made up of stacked resistors on the intended side in an insulating container, a gapless surge arrester is provided on the grounding side of the arrester, and a resistor column that responds to the rise in temperature of this resistor. 1. A deterioration detection device for a lightning arrester, comprising: a thermally responsive element that detects that the temperature has exceeded a predetermined value and outputs a deterioration detection signal. @ Provide a low melting point metal near the resistor, this -1! A deterioration detecting device for a lightning arrester according to claim 1, wherein the deterioration detection device for a lightning arrester is configured to short-circuit the contacts of a lightning arrester by melting the contacts. 0) The lightning arrester IIO deteriorating elm exit device according to claim (1), wherein a narm is provided near the resistor so that the relay contacts are short-circuited when the narm is activated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2991782A JPS58147102A (en) | 1982-02-26 | 1982-02-26 | Deterioration detector for arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2991782A JPS58147102A (en) | 1982-02-26 | 1982-02-26 | Deterioration detector for arrester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58147102A true JPS58147102A (en) | 1983-09-01 |
| JPH0125206B2 JPH0125206B2 (en) | 1989-05-16 |
Family
ID=12289341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2991782A Granted JPS58147102A (en) | 1982-02-26 | 1982-02-26 | Deterioration detector for arrester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58147102A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60153106A (en) * | 1984-01-20 | 1985-08-12 | 株式会社富士電機総合研究所 | Arrester |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56152210A (en) * | 1980-04-28 | 1981-11-25 | Tokyo Shibaura Electric Co | Arrester |
-
1982
- 1982-02-26 JP JP2991782A patent/JPS58147102A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56152210A (en) * | 1980-04-28 | 1981-11-25 | Tokyo Shibaura Electric Co | Arrester |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60153106A (en) * | 1984-01-20 | 1985-08-12 | 株式会社富士電機総合研究所 | Arrester |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0125206B2 (en) | 1989-05-16 |
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