JPS6337518A - Breaker monitor - Google Patents
Breaker monitorInfo
- Publication number
- JPS6337518A JPS6337518A JP17876286A JP17876286A JPS6337518A JP S6337518 A JPS6337518 A JP S6337518A JP 17876286 A JP17876286 A JP 17876286A JP 17876286 A JP17876286 A JP 17876286A JP S6337518 A JPS6337518 A JP S6337518A
- Authority
- JP
- Japan
- Prior art keywords
- circuit breaker
- voltage
- current measuring
- current
- measuring element
- 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
- 238000012806 monitoring device Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 description 8
- 238000009826 distribution Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、電力用遮断器の異常、特にその通電路の接
触抵抗を監視するための遮断器監視装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a circuit breaker monitoring device for monitoring abnormalities in a power circuit breaker, particularly contact resistance of its current carrying path.
第３図は従来の遮断器監視装置を示し、特に接触抵抗を
監視する手段として、一つの遮断点の電圧の分担を均等
にするための均圧コンデンサ（−）を設けた遮断器（１
）の表面温度を測定し、その温度分布を観測する赤外線
テレビ（３）を用いこの温度分布の異常を目視または計
算機による判断で監視するものである。Figure 3 shows a conventional circuit breaker monitoring device, in which a circuit breaker (1
), and using an infrared television (3) that observes the temperature distribution, abnormalities in this temperature distribution are monitored visually or by computer judgment.
すなわち、遮断器（１）の内部の接触抵抗が上昇すると
、発熱量が増加して当該部分の温度が上昇する。これを
赤外線を検出するテレビカメラ（３）で撮影することＫ
よシ、定量的に温度の分布を測定する。したがって、こ
の温度分布を正常時の分布と比較したり、左右分布を比
較したりするのに、内部の接触抵抗が高い場合には、そ
れを通常の運転状態のままで検出することができる。That is, when the contact resistance inside the circuit breaker (1) increases, the amount of heat generated increases and the temperature of the part concerned increases. Photograph this with a television camera (3) that detects infrared rays.
Well, measure the temperature distribution quantitatively. Therefore, if the internal contact resistance is high when comparing this temperature distribution with the normal distribution or comparing the left and right distributions, it can be detected under normal operating conditions.
以上のような従来の遮断器監視装置では、表面の温度分
布に変化を生じさせる他の要因、例えば風、雨などがあ
った９、流通電流が変化した直後には、温度分布状態か
ら機器の正常性を判定することは必ずしも容易ではない
という問題点があった。With conventional circuit breaker monitoring devices such as those described above, there are other factors that cause changes in the surface temperature distribution, such as wind and rain9. There was a problem in that it was not always easy to determine normality.
この発明はかような問題点を解消するためになされたも
ので、接触抵抗の６極ごとの差を任意の時点に比較する
ことができる遮断器監視装置を得ることを目的とする。The present invention was made to solve these problems, and an object of the present invention is to provide a circuit breaker monitoring device that can compare the difference in contact resistance among six poles at any time.
この発明に係る遮断器監視装置は、複数個の均圧素子回
路に鎖交してそれぞれ電流計測素子が設けられておシ、
この電流計測素子の出力信号を比較する電圧比較器を備
えている。The circuit breaker monitoring device according to the present invention includes a plurality of voltage equalizing element circuits each having a current measuring element interlinked with each other.
A voltage comparator is provided to compare the output signals of this current measuring element.
この発明においては、開極したときに遮断器の各極忙か
かる電圧を均圧化するために各種に並列に接続した均圧
素子に分流する電流が、接触抵抗の変動により変化する
ことを検出する。In this invention, it is detected that the current that is shunted to the voltage equalizing elements connected in parallel in order to equalize the voltage applied to each circuit breaker when the circuit breaker is opened changes due to fluctuations in contact resistance. do.
第１図、第一図はこの発明の一実施例を示し、図におい
て、監視対象の遮断器（１）のλつの遮断点の電圧の分
担を均等にするための均圧コンデンサ（２）が、一つの
遮断点にそれぞれ並列に接続されている。均圧コンデン
サ回路には、これと鎖交して電流計測素子（り）が設け
られている。これらの電流計測素子（りの出力電圧は、
電圧比較器（３）で比較され、比較結果を表示器（６）
に表示される。Figures 1 and 1 show an embodiment of the present invention, in which a voltage equalizing capacitor (2) is installed to equalize the voltage sharing at the λ breaking points of the circuit breaker (1) to be monitored. , are each connected in parallel to one interrupting point. A current measuring element (ri) is provided in the voltage equalizing capacitor circuit interlinked therewith. The output voltage of these current measuring elements is
The voltage is compared by the voltage comparator (3) and the comparison result is displayed on the display (6).
will be displayed.
なお、電流計測素子（り）は、高感度であると同時に大
きな電流に対してその出力が飽和するものを用いること
もある。Note that the current measuring element may be one that is highly sensitive and at the same time its output saturates with a large current.
以上の構成により、遮断器（１）の閉極状態で電流を通
電しているときは、接触抵抗に対応する電圧降下分の電
圧が均圧コンデンサ（２）の極間に発生する。このため
、均圧コンデンサ（２）Ｋ極小さい電流が流れる。この
電流値を高感度な電流計測素子（りで計測する。このと
き、各種の均圧コンデンサ（２）Ｋ分流する電流は、各
種の接触抵抗が同じ程度であればとの極においても大略
同じ値となる。この電流計測素子（ＩＩ）のＵ圧出力を
電圧比較器（３）で比較することによシ、いづれの極で
異常な接触抵抗の上昇があったかを検知することができ
る。With the above configuration, when the circuit breaker (1) is in the closed state and current is flowing, a voltage corresponding to the voltage drop corresponding to the contact resistance is generated between the poles of the voltage equalizing capacitor (2). Therefore, an extremely small current flows through the equalizing capacitor (2). This current value is measured with a highly sensitive current measuring element (2).At this time, the current that flows through various voltage equalizing capacitors (2) K is approximately the same at both poles if the contact resistances of each type are the same. By comparing the U voltage output of the current measuring element (II) with the voltage comparator (3), it is possible to detect which pole has experienced an abnormal increase in contact resistance.
遮断器（１）が閉極状態にあるときには接触抵抗対応の
電圧が発生しているのに対して、遮断器（１）が開極状
態にあるときには大きな電圧が発生し、均圧コンデンサ
（２）の回路にはよシ大きい電流が流れる。When the circuit breaker (1) is in the closed state, a voltage corresponding to the contact resistance is generated, whereas when the circuit breaker (1) is in the open state, a large voltage is generated and the voltage equalizing capacitor (2) is generated. ) A large current flows through the circuit.
電流計測素子（りを可飽和形にすると、この電流による
出力が電圧比較器（りに悪影響を与えないように、出力
電圧を抑制することができる。If the current measuring element is made saturable, the output voltage can be suppressed so that the output from this current does not adversely affect the voltage comparator.
なお、上記実施例ではコ点切の遮断器の場合で、かつ、
均圧素子としてコンデンサを用いた例を説明したが、遮
断点数がさらに多く、均圧素子としては抵抗を用いても
同等の効果を期待することができる。In addition, in the above embodiment, it is a case of a circuit breaker with a single cutout, and
Although an example has been described in which a capacitor is used as the pressure equalizing element, the same effect can be expected even if the number of cut-off points is larger and a resistor is used as the pressure equalizing element.
以上のように、この発明は、均圧素子に分流する電流を
計測することによって主導電部の接触抵抗を監視するよ
うにしたので、確実性の高い監視が行えるという効果が
あ、テ）。As described above, the present invention monitors the contact resistance of the main conductive part by measuring the current that flows into the voltage equalizing element, and has the advantage that highly reliable monitoring can be performed.
第１図はこの発明の一実施例の結線図、第２図は同じく
一部結線図、第７図は従来の遮断器監視装置の概略配置
図である。
（１）・・遮断器、（２）・・均圧コンデンサ（均圧素
子）、（ダ）・・電流計測素子、（３）・・電圧比較器
。
なお、各図中、同一符号は同−又は相当部分を示す。FIG. 1 is a wiring diagram of an embodiment of the present invention, FIG. 2 is a partial wiring diagram, and FIG. 7 is a schematic layout diagram of a conventional circuit breaker monitoring device. (1)...breaker, (2)...equalizing capacitor (equalizing element), (da)...current measuring element, (3)...voltage comparator. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (2)
の均圧素子回路にそれぞれ設けた電流計測素子と、この
電流計測素子の出力信号を比較する電圧比較器とを備え
てなる遮断器監視装置。(1) Circuit breaker monitoring comprising a current measuring element provided in each of a plurality of voltage equalizing element circuits of a circuit breaker having at least two breaking points, and a voltage comparator that compares the output signals of the current measuring elements. Device.
第１項記載の遮断器監視装置。(2) The circuit breaker monitoring device according to claim 1, comprising a saturable current measuring element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17876286A JPS6337518A (en) | 1986-07-31 | 1986-07-31 | Breaker monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17876286A JPS6337518A (en) | 1986-07-31 | 1986-07-31 | Breaker monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6337518A true JPS6337518A (en) | 1988-02-18 |
Family
ID=16054164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17876286A Pending JPS6337518A (en) | 1986-07-31 | 1986-07-31 | Breaker monitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6337518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03148195A (en) * | 1989-10-25 | 1991-06-24 | Du Pont Japan Ltd | Manufacture of multilayer circuit plate |
-
1986
- 1986-07-31 JP JP17876286A patent/JPS6337518A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03148195A (en) * | 1989-10-25 | 1991-06-24 | Du Pont Japan Ltd | Manufacture of multilayer circuit plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4805063A (en) | Fault detector for detecting faults in a DC capacitor circuit | |
| US11709197B2 (en) | Devices and methods for surge protection device monitoring | |
| CN110221164A (en) | Detect the system and method for copper bar connection in battery pack | |
| CN103650277B (en) | The supervising device of electrical network, photovoltaic system and operation method for the insulation structure of photovoltaic system | |
| WO2016174854A1 (en) | Disconnection detection method for storage battery monitoring circuit | |
| US3125720A (en) | Capacitor fault indicator including resistance voltage divider | |
| JPS6337518A (en) | Breaker monitor | |
| CN105811368B (en) | Adaptivity zero line break protection device and system | |
| KR100925342B1 (en) | Surge protector for power with power state quality monitoring function | |
| US5115188A (en) | Resistance sensor and switch | |
| CN216285512U (en) | Intelligent detection surge protector system | |
| CN204575787U (en) | With the self-monitoring treatment circuit for resistive sensor | |
| CN217405529U (en) | Battery pack and temperature sampling device thereof | |
| JPH10341578A (en) | Arm short-circuit detecting circuit of inverter equipment | |
| SU995077A1 (en) | Device for protecting multi-channel stabilizers with polar difference | |
| JPH0618606A (en) | Method for generating alarm for insulation deterioration | |
| JPS6138363Y2 (en) | ||
| JPH0656400B2 (en) | Contact information detection unit | |
| JPS5825286B2 (en) | input/output device | |
| JPS6281927A (en) | Power device temperature detector | |
| JPS604868A (en) | Sensor circuit | |
| SU955147A1 (en) | Device for signalling status of object under checking | |
| SU834813A1 (en) | Device for protecting traction network from short-circuiting current | |
| JPH03253219A (en) | Overheat monitor for electric facility | |
| JPS61122701A (en) | Protecting method of disconnection |