JPH0536327A - Abnormal action detecting device for switch - Google Patents
Abnormal action detecting device for switchInfo
- Publication number
- JPH0536327A JPH0536327A JP21269791A JP21269791A JPH0536327A JP H0536327 A JPH0536327 A JP H0536327A JP 21269791 A JP21269791 A JP 21269791A JP 21269791 A JP21269791 A JP 21269791A JP H0536327 A JPH0536327 A JP H0536327A
- Authority
- JP
- Japan
- Prior art keywords
- force
- operating
- switchgear
- operating force
- switch
- 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
Landscapes
- Emergency Alarm Devices (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Keying Circuit Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、電力用遮断器などの
開閉機器の動作異常を簡単にかつ精度よく検出する動作
異常検出装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation abnormality detecting device for easily and accurately detecting an operation abnormality of a switchgear such as a power circuit breaker.
【０００２】[0002]
【従来の技術】遮断器等の開閉機器に関する故障統計に
よれば、大半が機械的故障によるものである。そのう
ち、動作不能、動作不具合の故障については、事前の徴
候として、動作遅延などの動作異常がある場合が多い。
従ってこの動作異常を早期に発見することが開閉機器の
予防保全に有効な手段となりうる。図４は例えば特開昭
６１−２０３８２０号公報に示された従来の動作異常検
出装置の動作特性図を示すものである。2. Description of the Related Art According to failure statistics on switchgear and other switchgear, most of them are due to mechanical failure. Of these, malfunctions such as inoperability and malfunction often have a malfunction such as a motion delay as a symptom in advance.
Therefore, early detection of this operation abnormality can be an effective means for preventive maintenance of switchgear. FIG. 4 shows an operation characteristic diagram of a conventional operation abnormality detecting device disclosed in, for example, Japanese Patent Laid-Open No. 61-203820.
【０００３】図において、１はストロークカーブ、２は
投入コイル電流、３は主接点の信号、４は主接点に連動
して開閉する補助スイッチのａ接点の信号、５はｂ接点
の信号である。投入コイルが励磁されてからｂ接点が開
くまでの時間ＴC1と投入コイルが励磁されてからａ接点
が閉じるまでの時間ＴC2は、補助スイッチに電圧を印加
しておき、タイマ等との併用によって得ることができ
る。そして、上記得られた時間を基準値と比較すること
によって、操作系の正常あるいは異常を検出する。In the figure, 1 is a stroke curve, 2 is a making coil current, 3 is a signal of a main contact, 4 is a signal of an a-contact of an auxiliary switch which opens and closes in conjunction with the main contact, and 5 is a signal of a b-contact. .. The time T C1 from the excitation of the closing coil to the opening of the b contact and the time T C2 from the excitation of the closing coil to the closing of the a contact T C2 apply voltage to the auxiliary switch together with a timer etc. Can be obtained by Then, by comparing the obtained time with a reference value, the normality or abnormality of the operating system is detected.
【０００４】図５は上記異常検出を行う検出装置の一例
を示したもので、ＴC の電気信号をアンプ６によって増
幅し、次のコンパレータ７によって微小波形を除去し、
クロック８からのパルス信号で入力電気信号を時間とし
て読み取り１０進カウンタ９で出力する。また予め正常
値をディジタルスイッチ１０に設定しておき、その設定
値とコンパーレタ１１で比較し出力することにより、正
常異常を検出することができる。FIG. 5 shows an example of a detecting device for detecting the above abnormality. An electric signal of T C is amplified by an amplifier 6 and a minute waveform is removed by a next comparator 7,
The pulse signal from the clock 8 is used to read the input electric signal as time and output it by the decimal counter 9. Further, by setting a normal value in the digital switch 10 in advance, and comparing the set value with the comparator 11 and outputting the result, it is possible to detect the normal abnormality.
【０００５】[0005]
【発明が解決しようとする課題】従来の動作異常検出装
置は以上のように構成されているので、操作源が油圧や
空気圧の場合、正常な操作圧の許容範囲が約１０％あ
り、更に気温の変化によっても操作圧が変動するため、
これらによりストローク特性の変化は無視できず、その
結果誤検出を防止するため正常動作の判定領域を広げな
ければならず、精度の良い動作異常検出が困難である問
題点があった。Since the conventional operation abnormality detecting device is constructed as described above, when the operation source is hydraulic pressure or pneumatic pressure, the allowable range of normal operating pressure is about 10%, and the temperature range is further increased. Since the operating pressure also changes with changes in
Due to these, changes in stroke characteristics cannot be ignored, and as a result, the normal operation determination region must be widened to prevent erroneous detection, which makes it difficult to detect abnormal motions with high accuracy.
【０００６】この発明は上記のような問題点を解消する
ためになされたもので、正常な操作力の変動によるスト
ローク特性への影響を排除し、精度の高い動作異常検出
装置を得ることを目的としている。The present invention has been made to solve the above problems, and an object of the present invention is to eliminate the influence of normal fluctuations in operating force on stroke characteristics and to obtain a highly accurate motion abnormality detecting device. I am trying.
【０００７】[0007]
【課題を解決するための手段】この発明に係る開閉機器
の動作異常検出装置は、開閉機器の投入、引出しの何れ
か一方の指令を電気的に与え、この指令に基づいて機械
的に操作力を駆動機構部へ伝達する操作部を有する開閉
機器において、開閉機器動作初期の操作力を測定する操
作力測定部と、この操作力に応動して開閉機器が動作す
るまでの時間を測定する動作時間測定部と、上記測定さ
れた操作力と動作時間より機構部に発生する摩擦等の阻
止力を計算する演算器と、該阻止力計算値と予め設定さ
れた正常時の阻止力とを比較し、開閉機器の動作異常を
判定するコンパレータとを設けたものである。SUMMARY OF THE INVENTION An operation abnormality detecting device for a switchgear according to the present invention electrically gives a command for either opening or closing of the switchgear, and mechanically operates an operating force based on this command. In a switchgear having an operating part for transmitting the operating force to the drive mechanism part, an operation force measuring part for measuring the operating force at the beginning of the operation of the switchgear and an operation for measuring the time until the switchgear operates in response to this operating force. A time measuring unit, an arithmetic unit for calculating the blocking force such as friction generated in the mechanism unit from the measured operating force and operation time, and comparing the calculated blocking force with the preset blocking force in normal times However, a comparator for determining an operation abnormality of the switchgear is provided.
【０００８】[0008]
【作用】この発明における開閉機器の動作異常検出装置
は、操作直前の操作力すなわち操作圧を操作力測定部で
測定し、可動部質量動作ストロークの定数と、動作時間
測定部で測定された動作時間から摩擦力等の阻止力を演
算器での計算により求め、この値と正常時の阻止力とを
コンパレータで比較することにより異常検出を行う。こ
の方法によれば操作力の正常な変動によるストローク特
性への影響を排除することができ、精度の高い動作異常
検出をすることができる。In the operation abnormality detecting apparatus for the switchgear according to the present invention, the operating force immediately before the operation, that is, the operating pressure is measured by the operating force measuring section, and the constant of the moving stroke of the movable part and the operation measured by the operating time measuring section are measured. Abnormality is detected by calculating the blocking force such as frictional force from the time by calculation in a computing unit and comparing this value with the blocking force under normal conditions by a comparator. According to this method, it is possible to eliminate the influence on the stroke characteristic due to the normal fluctuation of the operating force, and it is possible to detect the operation abnormality with high accuracy.
【０００９】[0009]
実施例１．以下、この発明の一実施例を図について説明
する。図１は動作特性を示したもので、１はストローク
カーブ、２は投入コイル電流、３は主接点の信号、４は
主接点に連動して開閉する補助スイッチのａ接点の信
号、５はｂ接点の信号、１２は主接点を開閉する操作装
置の操作圧力のデータで圧力センサ等により測定され
る。Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows operating characteristics. 1 is a stroke curve, 2 is a making coil current, 3 is a signal of a main contact, 4 is a signal of an a-contact of an auxiliary switch which is opened and closed in conjunction with the main contact, and 5 is b. The signal of the contact, 12 is the data of the operating pressure of the operating device that opens and closes the main contact, and is measured by a pressure sensor or the like.
【００１０】投入コイル２が励磁されると、これをトリ
ガとして操作圧力１２のデータを取り込む。また投入コ
イル２が励磁されてからｂ接点が開くまでの時間ＴC1と
投入コイル２が励磁されてからａ接点が閉じるまでの時
間ＴC2とを補助スイッチに電圧を印加しておき、タイマ
等の併用によって得ることができる。これらの情報から
ａ、ｂ接点のずれ時間ＴC3も得ることができる。When the closing coil 2 is excited, this is used as a trigger to fetch the data of the operating pressure 12. Also the time T C2 from closing coil 2 is energized time T C1 and the input coil 2 from being energized until b contact opening until a contact is closed in advance by applying a voltage to the auxiliary switch, a timer, etc. Can be obtained in combination. The shift time T C3 between the a and b contacts can also be obtained from these pieces of information.
【００１１】図２は図１のデータから動作異常検出を行
うフローチャートを示したものである。投入信号の入力
より、動作初期の操作圧Ｐを読み込み、これにシリンダ
面積Ａを掛けて操作力Ｆ（＝ＡＰ）を計算する。図１の
ｂ接点、ａ接点から得られる時間ＴC1、ＴC2からＴ
C3（＝ＴC2−ＴC1）を計算し、既知データである可動部
質量Ｍ、この間のストロークＳから運動方程式により摩
擦力等の阻止力ＦＲを計算する。FIG. 2 shows a flow chart for detecting an abnormal operation from the data shown in FIG. The operating pressure P at the initial stage of operation is read from the input of the closing signal, and this is multiplied by the cylinder area A to calculate the operating force F (= AP). The time T C1 , T C2 to T obtained from the b contact and the a contact in FIG.
C3 (= T C2 −T C1 ) is calculated, and the blocking force FR such as frictional force is calculated from the mass M of the movable part, which is known data, and the stroke S between them, by the equation of motion.
【００１２】一方、同様の方法により得られた正常時の
阻止力ＦＲ0 のデータと動作により計算された阻止力Ｆ
Ｒを比較することによりＦＲ／ＦＲ0 が一定値以上とな
った時に動作異常と判定する。図３は本発明の検出装置
の一例を示したもので、１８は操作力測定装置、１９は
動作時間測定装置である。On the other hand, the stopping force F 0 calculated by the operation and the data of the stopping force FR 0 in the normal state obtained by the same method.
By comparing R, it is determined that the operation is abnormal when FR / FR 0 exceeds a certain value. FIG. 3 shows an example of the detection device of the present invention, in which 18 is an operating force measuring device and 19 is an operating time measuring device.
【００１３】ＴC の電気信号をアンプ６によって増幅
し、パルス発生器１３により操作圧Ｐを読み込みアンプ
１４で増幅する。一方アンプ６により増幅されたＴC の
電気信号はコンパレータ７によって微小波形を除去し、
クロック８からのパルス信号で入力電気信号を時間とし
て読取り、１０進カウンタ９で出力する。The electric signal of T C is amplified by the amplifier 6, the operating pressure P is read by the pulse generator 13, and amplified by the amplifier 14. On the other hand, the electric signal of T C amplified by the amplifier 6 has a minute waveform removed by the comparator 7,
The input electric signal is read as time with the pulse signal from the clock 8 and output by the decimal counter 9.
【００１４】これらの操作圧Ｐと時間ＴC を演算器１５
で演算することにより、この動作における阻止力を得
る。また予め正常時の阻止力をディジタルスイッチ１６
に設定しておき、その設定値とコンパレータ１７で比較
し出力することにより、正常、異常を検出することがで
きる。The operating pressure P and the time T C are calculated by the calculator 15
The blocking force in this operation is obtained by calculating with. In addition, the blocking force during normal operation is set in advance by the digital switch 16
It is possible to detect normality / abnormality by setting the above value and comparing the set value with the comparator 17 and outputting the result.
【００１５】実施例２．上記実施例では、遮断器の投入
動作について説明したが、遮断動作でもよく、また断路
器や他の開閉装置であっても良い。更に上記実施例では
比較判定に摩擦等の阻止力を計算する例を示したが、動
作時間そのものを比較しても同様の効果を奏する。Example 2. In the above embodiment, the closing operation of the circuit breaker has been described, but it may be a breaking operation, a disconnecting switch, or another switchgear. Further, in the above-described embodiment, an example in which the blocking force such as friction is calculated for the comparison determination is shown, but the same effect can be obtained by comparing the operating times themselves.
【００１６】[0016]
【発明の効果】以上のようにこの発明によれば、開閉動
作時に正常な範囲で変化しうる操作力のストローク特性
への影響を排除するため、動作初期の操作力を測定し、
演算を行うように構成したので、安価で精度の高い動作
異常検出装置が得られる効果がある。As described above, according to the present invention, in order to eliminate the influence on the stroke characteristic of the operating force which can be changed in the normal range during the opening / closing operation, the operating force at the initial operation is measured,
Since the calculation is performed, there is an effect that an inexpensive and highly accurate operation abnormality detecting device can be obtained.
【図１】本発明の一実施例における動作異常検出装置で
ある。FIG. 1 is an operation abnormality detection device according to an embodiment of the present invention.
【図２】本発明の一実施例における動作を説明するフロ
ーチャートである。FIG. 2 is a flowchart illustrating an operation in one embodiment of the present invention.
【図３】本発明の一実施例における動作特性図である。FIG. 3 is an operating characteristic diagram in an example of the present invention.
【図４】従来の開閉機器の動作特性図である。FIG. 4 is an operating characteristic diagram of a conventional switchgear.
【図５】従来の開閉機器の動作異常検出装置である。FIG. 5 is a conventional operation abnormality detection device for a switchgear.
１５ 演算器 １６ ディジタルスイッチ １７ コンパレータ １８ 操作力測定装置 １９ 動作時間測定装置 15 arithmetic unit 16 digital switch 17 comparator 18 operating force measuring device 19 operating time measuring device
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成３年１１月８日[Submission date] November 8, 1991
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００７[Correction target item name] 0007
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００７】[0007]
【課題を解決するための手段】この発明に係る開閉機器
の動作異常検出装置は、開閉機器の投入、引外しの何れ
か一方の指令を電気的に与え、この指令に基づいて機械
的に操作力を駆動機構部へ伝達する操作部を有する開閉
機器において、開閉機器動作初期の操作力を測定する操
作力測定部と、この操作力に応動して開閉機器が動作す
るまでの時間を測定する動作時間測定部と、上記測定さ
れた操作力と動作時間より機構部に発生する摩擦等の阻
止力を計算する演算器と、該阻止力計算値と予め設定さ
れた正常時の阻止力とを比較し、開閉機器の動作異常を
判定するコンパレータとを設けたものである。SUMMARY OF THE INVENTION An operation abnormality detecting device for a switchgear according to the present invention electrically gives a command for either closing or tripping the switchgear and mechanically operates based on this command. For a switchgear that has an operating part that transmits force to the drive mechanism part, an operating force measuring part that measures the operating force at the beginning of operation of the switchgear, and the time until the switchgear operates in response to this operating force. An operating time measuring unit, an arithmetic unit for calculating a blocking force such as friction generated in the mechanism unit from the measured operating force and operating time, a calculated blocking force and a preset blocking force in a normal state. A comparator is provided for making a comparison and determining an operation abnormality of the switchgear.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００９[Correction target item name] 0009
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００９】[0009]
【実施例】 実施例１．以下、この発明の一実施例を図について説明
する。図３は動作特性を示したもので、１はストローク
カーブ、２は投入コイル電流、３は主接点の信号、４は
主接点に連動して開閉する補助スイッチのａ接点の信
号、５はｂ接点の信号、１２は主接点を開閉する操作装
置の操作圧力のデータで圧力センサ等により測定され
る。EXAMPLES Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 3 shows the operating characteristics . 1 is a stroke curve, 2 is a closing coil current, 3 is a signal of a main contact, 4 is a signal of an a-contact of an auxiliary switch that opens and closes in conjunction with the main contact, and 5 is b. The signal of the contact, 12 is the data of the operating pressure of the operating device that opens and closes the main contact, and is measured by a pressure sensor or the like.
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１２[Correction target item name] 0012
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１２】一方、同様の方法により得られた正常時の
阻止力ＦＲ0 のデータと動作により計算された阻止力Ｆ
Ｒを比較することによりＦＲ／ＦＲ0 が一定値以上とな
った時に動作異常と判定する。図１は本発明の検出装置
の一例を示したもので、１８は操作力測定装置、１９は
動作時間測定装置である。On the other hand, the stopping force F 0 calculated by the operation and the data of the stopping force FR 0 in the normal state obtained by the same method.
By comparing R, it is determined that the operation is abnormal when FR / FR 0 exceeds a certain value. FIG. 1 shows an example of the detecting device of the present invention, in which 18 is an operating force measuring device and 19 is an operating time measuring device.
Claims (1)
指令を電気的に与え、この指令に基づいて機械的に操作
力を駆動機構部へ伝達する操作部を有する開閉機器にお
いて、開閉機器動作初期の操作力を測定する操作力測定
部と、この操作力に応動して開閉機器が動作するまでの
時間を測定する動作時間測定部と、上記測定された操作
力と動作時間より機構部に発生する摩擦等の阻止力を計
算する演算器と、該阻止力計算値と予め設定された正常
時の阻止力とを比較し、開閉機器の動作異常を判定する
コンパレータとを備えたことを特徴とする開閉機器の動
作異常検出装置。Claim: What is claimed is: 1. An operating unit is provided which electrically gives either one of a switching device opening and closing command and mechanically transmits an operating force to the drive mechanism unit based on the command. In the switchgear, an operating force measurement unit that measures the operating force at the beginning of the operation of the switchgear, an operation time measurement unit that measures the time until the switchgear operates in response to this operating force, and the measured operating force And a comparator for calculating the blocking force such as friction generated in the mechanism section from the operating time and the calculated blocking force and the preset blocking force at the normal time to judge the operation abnormality of the switchgear An operation abnormality detection device for switchgear, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21269791A JP2728994B2 (en) | 1991-07-30 | 1991-07-30 | Switching device operation abnormality detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21269791A JP2728994B2 (en) | 1991-07-30 | 1991-07-30 | Switching device operation abnormality detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0536327A true JPH0536327A (en) | 1993-02-12 |
| JP2728994B2 JP2728994B2 (en) | 1998-03-18 |
Family
ID=16626933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21269791A Expired - Fee Related JP2728994B2 (en) | 1991-07-30 | 1991-07-30 | Switching device operation abnormality detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2728994B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8885139B2 (en) | 2005-01-21 | 2014-11-11 | Johnson & Johnson Vision Care | Adaptive electro-active lens with variable focal length |
| US10191294B2 (en) | 2011-11-23 | 2019-01-29 | Magic Leap, Inc. | Three dimensional virtual and augmented reality display system |
-
1991
- 1991-07-30 JP JP21269791A patent/JP2728994B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8885139B2 (en) | 2005-01-21 | 2014-11-11 | Johnson & Johnson Vision Care | Adaptive electro-active lens with variable focal length |
| US10191294B2 (en) | 2011-11-23 | 2019-01-29 | Magic Leap, Inc. | Three dimensional virtual and augmented reality display system |
| US10444527B2 (en) | 2011-11-23 | 2019-10-15 | Magic Leap, Inc. | Three dimensional virtual and augmented reality display system |
| US10670881B2 (en) | 2011-11-23 | 2020-06-02 | Magic Leap, Inc. | Three dimensional virtual and augmented reality display system |
| US11474371B2 (en) | 2011-11-23 | 2022-10-18 | Magic Leap, Inc. | Three dimensional virtual and augmented reality display system |
| US11822102B2 (en) | 2011-11-23 | 2023-11-21 | Magic Leap, Inc. | Three dimensional virtual and augmented reality display system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2728994B2 (en) | 1998-03-18 |
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