JPS61227320A - Operator for power switch - Google Patents
Operator for power switchInfo
- Publication number
- JPS61227320A JPS61227320A JP6694385A JP6694385A JPS61227320A JP S61227320 A JPS61227320 A JP S61227320A JP 6694385 A JP6694385 A JP 6694385A JP 6694385 A JP6694385 A JP 6694385A JP S61227320 A JPS61227320 A JP S61227320A
- Authority
- JP
- Japan
- Prior art keywords
- position detection
- sensor
- power switch
- time
- operating device
- 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.)
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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、電力系統に使用される電力開閉器の開閉操作
を行なう電力開閉器用操作装置に関し、特に動作異常の
自己診断機能に関する。DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a power switch operating device for opening and closing a power switch used in an electric power system, and particularly to a self-diagnosis function for abnormal operation.
（発明の技術的背景）
一般に電力開閉器、特に保護しゃ断器等の重要なしゃ断
器においては、液圧操作装置等の操作装置により開閉操
作されるものとなっている。そして、これらのしゃ断器
は、負荷電流の開閉ばかりでなく、電力系統に何らかの
異常が起きて事故電流が流れた場合、速やかにしかも確
実に事故電流をしゃ断する機能を備えている必要がある
。したがって、し中断器の故障を事前に予防する保全手
段が必要である。(Technical Background of the Invention) Generally, power switches, particularly important circuit breakers such as protective circuit breakers, are opened and closed by operating devices such as hydraulic operating devices. In addition to switching on and off the load current, these circuit breakers need to have the ability to quickly and reliably cut off the fault current if some kind of abnormality occurs in the power system and fault current flows. Therefore, there is a need for maintenance measures to prevent failure of the interrupter in advance.
なお、一般にしゃ断器の故障は、その機械動作部の不具
合による場合が大部分であり、特に「かじり」や「潤滑
剤不足」等による動作不具合によっては、いきなり動作
不能に陥ることはなく、次第に開閉時間が遅くなるとい
った現象を呈したのち、最終的に重故障へと進展するこ
とが多い。In general, the majority of breaker failures are due to malfunctions in the mechanical operating parts, and malfunctions such as "galling" or "lack of lubricant" do not cause the circuit breaker to suddenly become inoperable, but rather gradually. After exhibiting a phenomenon such as slow opening/closing time, it often develops into a serious failure.
このような観点から、従来は使用初期における正常な開
閉時間を計測し、これを基準値として予め記録しておき
、定期点検時においてしゃ断器を開閉動作させてみて、
その時の開閉時間と前記基準値とを比較し、その差が許
容値を超えた場合に異常と判断する予防保全手段を採用
していた。From this point of view, conventional methods have been to measure the normal opening/closing time at the beginning of use, record this in advance as a reference value, and then try opening and closing the circuit breaker during periodic inspections.
A preventive maintenance measure was adopted in which the opening/closing time at that time was compared with the reference value, and if the difference exceeded an allowable value, an abnormality was determined.
しかし、定期点検の周期は６力月から数年というように
非常に長い。したがって次の定期点検までの期間中に発
生する動作異常については、これを検知することができ
ず、次の定期点検において異常が検知される前に重故障
が発生してしまうおそれがあった。However, the periodic inspection cycle is extremely long, ranging from six months to several years. Therefore, it is impossible to detect any operational abnormality that occurs during the period until the next periodic inspection, and there is a risk that a serious failure may occur before the abnormality is detected in the next periodic inspection.
本発明の目的は、動作異常の有無を自己診断する機能を
有し、随時適確に異常発生を検知可能で、開閉器の保守
・保全の省力化をはかれると共に、信頼性の高い動作が
期待できる電力開閉器用操作装置を提供することを目的
とする。The purpose of the present invention is to have a function of self-diagnosing whether there is an abnormality in operation, to be able to accurately detect the occurrence of an abnormality at any time, to save labor in the maintenance and maintenance of the switch, and to expect highly reliable operation. The purpose of the present invention is to provide a power switch operating device that can be used.
本発明は上記目的を達成するために、次の如く構成した
ことを特徴としている。すなわち、電力開閉器の開閉接
点を開閉操作する如くその一部を上記開閉接点と連結さ
れた操作機構における上記連結部分に位置検出用指標を
取付け、この位置検出用指標の位置を検出可能な如く上
記位置検出用指標の移動経路に沿って所定位置に位置検
出センサを配設し、前記電力間ＩＷＪ器の開閉動作指令
が発せられた時点から前記位置検出センサにて検出信号
が得られるまでの時間を計測し、この計測時間を基準時
間と比較して動作異常の有無を判定するようにしたもの
であり、動作異常の有無を自己診断する機能を有してい
ることを特徴としている。In order to achieve the above object, the present invention is characterized by the following configuration. That is, a position detecting index is attached to the connecting part of the operation mechanism, a part of which is connected to the switching contact of the power switch so that the position of the position detecting index can be detected. A position detection sensor is disposed at a predetermined position along the movement route of the position detection index, and the period from the time when the opening/closing operation command of the power IWJ device is issued until the detection signal is obtained by the position detection sensor is provided. This device measures time and compares the measured time with a reference time to determine whether there is an abnormality in operation, and is characterized by having a function to self-diagnose whether or not there is an abnormality in operation.
第１図は、本発明をしゃ断器用油圧操作装置に適用した
第１の実施例を示す図である。１はしゃ断器であり、ガ
スタンク内に固定接触子２．可動接触子３が納められて
いる。４は操作用液体タンクであり、操作用液体として
作動油が貯留されている。この作動油はポンプ５により
昇圧されてアキュムレータ６に送り込まれる。アキュム
レータ６は、いわゆるピストン形のものであり、その中
をピストン７で仕切られている。前記ピストン７で区分
された高圧油室とは反対側の室には、高圧ガス例えばＮ
２ガスが入っている。８はしゃ断器１の開閉操作を行な
う操作シリンダであり、この操作シリンダ８の内部には
、前記アキュームレータ６から供給される高圧作動油に
より動作するピストン９が収容されている。１０は投入
コイル、１１は引外しコイルであり、これらのコイルに
対して制御系から制御電圧が選択的に与えられると、前
記アキュームレータ６からシリンダ８へ高圧作動油が供
給され、ピストン９を所定方向へ駆動するものとなって
いる。１２は連結部としての操作ロッドであり、一端を
ピストン９に結合され、他端を前記可動接触子３に結合
されている。この操作０ツド１２には位置検出指標とし
ての磁性体からなる位置検出板１３が取付けである。１
４は閉路位置検出センサ、１５は中間位置検出センサ、
１６は開路位置検出センサである。これらの各センサは
、磁気感知式センサであり、前記位置検出板１３が感知
範囲内にあるときはＯＮ信号を出力し、前記位置検出板
１３が感知範囲内にないときはＯＦＦ信号を出力する。FIG. 1 is a diagram showing a first embodiment in which the present invention is applied to a hydraulic operating device for a circuit breaker. 1 is a breaker, and a fixed contact 2. is installed in the gas tank. A movable contactor 3 is housed therein. Reference numeral 4 denotes a liquid tank for operation, in which hydraulic oil is stored as the liquid for operation. This hydraulic oil is pressurized by the pump 5 and sent to the accumulator 6. The accumulator 6 is so-called piston-shaped, and the inside thereof is partitioned by a piston 7. A chamber on the opposite side from the high pressure oil chamber divided by the piston 7 is filled with high pressure gas, for example, N.
Contains 2 gases. Reference numeral 8 denotes an operating cylinder for opening and closing the breaker 1, and a piston 9 operated by high-pressure hydraulic oil supplied from the accumulator 6 is housed inside the operating cylinder 8. 10 is a closing coil, and 11 is a tripping coil. When a control voltage is selectively applied to these coils from the control system, high-pressure hydraulic oil is supplied from the accumulator 6 to the cylinder 8, and the piston 9 is moved to a predetermined position. It is designed to be driven in the direction. Reference numeral 12 designates an operating rod as a connecting portion, which has one end coupled to the piston 9 and the other end coupled to the movable contact 3. A position detecting plate 13 made of a magnetic material is attached to this operating point 12 as a position detecting index. 1
4 is a closed circuit position detection sensor, 15 is an intermediate position detection sensor,
16 is an open circuit position detection sensor. Each of these sensors is a magnetic sensor, and outputs an ON signal when the position detection plate 13 is within the sensing range, and outputs an OFF signal when the position detection plate 13 is not within the sensing range. .
１７〜１９は前記各位置検出センサ１４〜１６からの信
号を演算処理装置２０へ伝送するためのケーブルである
。演算処理装置２０は、各位置検出センサ１４〜１６か
らの信号と、端子２１．２２からそれぞれ与えられる引
外し指令信号Ｓ１．投入指令信号Ｓ２との関係から求ま
る検出板１３の所定位置までの動作時間を基準値と比較
し、その結果に基いて動作の異常の有無を判断し、判断
結果を出力端子２３から送出するものとなっている。Cables 17 to 19 transmit signals from the position detection sensors 14 to 16 to the arithmetic processing unit 20. The arithmetic processing unit 20 receives signals from each of the position detection sensors 14 to 16 and trip command signals S1. Compares the operation time of the detection plate 13 to a predetermined position determined from the relationship with the closing command signal S2 with a reference value, determines whether or not there is an abnormality in the operation based on the result, and sends the determination result from the output terminal 23. It becomes.
次に上記の如く構成された本実施例の動作を、第２図を
適時参照しながら説明する。しゃ断器１が完全に投入状
態であるか引外し状態であるかについては、常に監視し
ておく必要があるが、この点に関しては闇路位置検出セ
ンサ１４．開路位置検出センサ１６からの出力信号によ
り確認できる。Next, the operation of this embodiment configured as described above will be explained with reference to FIG. 2 from time to time. It is necessary to constantly monitor whether the circuit breaker 1 is fully closed or tripped, but the dark road position detection sensor 14. This can be confirmed by the output signal from the open circuit position detection sensor 16.
例えば投入状態においては位置検出板１３は図中左端に
あり、閉路位置検出センサ１４の感知範囲内に位置して
いる。このため、この位置検出センサ１４からはＯＮ信
号が出力され、他方、開路位置検出センサ１６からはＯ
ＦＦ信号が出力される。For example, in the closed state, the position detection plate 13 is located at the left end in the figure and within the sensing range of the closed circuit position detection sensor 14. Therefore, the position detection sensor 14 outputs an ON signal, while the open circuit position detection sensor 16 outputs an O signal.
An FF signal is output.
引外し状態においては、この逆である。In the tripped state, the opposite is true.
ところで今、しゃ断器１の投入状態において、第２図に
示すようにある時点で引外しコイル１１に引外し指令信
号Ｓ１が発せられると、第２図の期ｆｉｌＴＡにおいて
引き外し動作が行なわれる。すなわち開閉接点である可
動接触子３と連動する操作ロッド１２に取付けである位
置検出板１３は、図中左から右へ高速で移動する。この
とき位置検出板１３が中間位置検出用の位置検出用セン
サ１５の感知範囲に達すると、この位置検出センサ１５
からＯＮ信号ＳＡが出力され、これがケーブル１８を通
して演算処理装置［２０に送られる。このとき演算処理
装Ｒ２０には引外し指令信＠Ｓ１がすでに入力されてい
る。したがって、位置検出センサ１５からの信号ＳＡが
入力されると、演算処理装置２０において引外し指令信
号Ｓ１が入力した時点から、位置検出センサ１５からの
ＯＮ信号ＳＡが入力されるまでの時！ｌｌＴ１が第２図
に示すように計測され、位置検出板１３が所定位置まで
到達するに要した引外し動作時間が検出される。By the way, when the breaker 1 is in the closed state and a tripping command signal S1 is issued to the tripping coil 11 at a certain point in time as shown in FIG. 2, a tripping operation is performed in period filTA in FIG. That is, the position detection plate 13, which is attached to the operating rod 12 that interlocks with the movable contact 3, which is an opening/closing contact, moves at high speed from left to right in the figure. At this time, when the position detection plate 13 reaches the sensing range of the position detection sensor 15 for intermediate position detection, this position detection sensor 15
An ON signal SA is output from the controller 18, and is sent to the arithmetic processing unit [20] through the cable 18. At this time, the tripping command signal @S1 has already been input to the processing unit R20. Therefore, when the signal SA from the position detection sensor 15 is input, the time from the time when the trip command signal S1 is input to the arithmetic processing unit 20 until the ON signal SA from the position detection sensor 15 is input! llT1 is measured as shown in FIG. 2, and the tripping operation time required for the position detection plate 13 to reach a predetermined position is detected.
一方、しゃ断器１の投入状態において、第２図に示すよ
うにある時点で投入コイル１０に投入指令信号Ｓ２が与
えられると、第２図の期間ＴＢにおいて投入動作が行な
われる。すなわちｒｊＩＪｗＩ接点である可動接触子３
と連動する操作ロッド１２に取付けである位置検出板１
３は、図中布から左へ高速で移動する。このとき位置検
出板１３が中間位置検出用の位置検出用センサ１５の感
知範囲に達すると、この位置検出センサ１５からＯＮ信
号８Ｂが出力され、これがケーブル１８を通して演算処
理装置２０に送られる。このとき演算処理装置２ｏには
投入指令信＠Ｓ２がすでに入力されている。したがって
、位置検出センサ１５からの信号ＳＢが入力されると、
演算処理装置２０において投入指令信号Ｓ２が入力した
時点から、位置検出センサ１５からのＯＮ信号ＳＢが入
力されるまでの時ＭＴ２が第２図に示すように計測され
、位置検出板１３が所定位置まで到達するに要した投入
動作時間が検出される。On the other hand, in the closed state of the breaker 1, when the closing command signal S2 is applied to the closing coil 10 at a certain point in time as shown in FIG. 2, the closing operation is performed during the period TB in FIG. In other words, the movable contact 3 which is an rjIJwI contact
The position detection plate 1 is attached to the operation rod 12 that interlocks with the
3 moves from the cloth to the left at high speed in the figure. At this time, when the position detection plate 13 reaches the sensing range of the position detection sensor 15 for intermediate position detection, the position detection sensor 15 outputs an ON signal 8B, which is sent to the arithmetic processing unit 20 through the cable 18. At this time, the input command signal @S2 has already been input to the arithmetic processing unit 2o. Therefore, when the signal SB from the position detection sensor 15 is input,
MT2 is measured as shown in FIG. 2 from the time when the input command signal S2 is input to the arithmetic processing unit 20 until the ON signal SB from the position detection sensor 15 is input, and the position detection plate 13 is at a predetermined position. The closing operation time required to reach this point is detected.
このようにして計測された所定位置までの移動に要した
引外しおよび投入動作時１１１Ｔ１．Ｔ２は、演算処理
装置２０内において基準値と比較され、その差が許容値
以内であるか否かにより、動作の異常の有無を判断され
る。そして異常であると判断さると、出力端子２３から
警報信号が送出される。111T1 during the tripping and closing operations required to move to the predetermined position measured in this way. T2 is compared with a reference value within the arithmetic processing unit 20, and it is determined whether or not there is an abnormality in the operation based on whether the difference is within a tolerance value. If it is determined that there is an abnormality, an alarm signal is sent from the output terminal 23.
このように本実施例によれば、開閉接点である可動接触
子３に連動する操作機構の連結部すなわち操作ロッド１
２へ取り付けた位置検出板１３と、この位置検出板１３
の位置を検出する位置検出センサ１５等を用いて、開閉
動作が行なわれる毎に、引外し指令信号Ｓ１および投入
指令信号Ｓ２が発せられた時点から所定位置までの動作
時間が常時監視されることになる。この場合、しゃ断ま
たは投入の全所要時間とは別の、所定中間位置までの動
作時間を監視していることから、微妙な異常動作に関し
ても比較的感度よく適確に検知可能であリ、すぐれた自
己診断機能が発揮されることになる。かくして、しゃ断
器動作の異常の有無を定期点検をまたずに、早期にしか
も適確に検知することができる。その結果、しゃ断器１
の開閉操作に関する保守・保全の省力化をはかれると共
に、信頼性の向上がはかれる。As described above, according to the present embodiment, the connecting portion of the operating mechanism, that is, the operating rod 1 that is linked to the movable contact 3 that is an opening/closing contact.
The position detection plate 13 attached to 2 and this position detection plate 13
Each time an opening/closing operation is performed, the operating time from the time when the tripping command signal S1 and the closing command signal S2 are issued to the predetermined position is constantly monitored using a position detection sensor 15 etc. that detects the position of the opening/closing operation. become. In this case, since the operating time to a predetermined intermediate position is monitored, which is separate from the total time required for shutting off or closing, it is possible to accurately detect even subtle abnormal operations with relatively high sensitivity. The self-diagnosis function will be fully utilized. In this way, the presence or absence of an abnormality in the breaker operation can be detected early and accurately without having to perform periodic inspections. As a result, breaker 1
This will save labor in maintenance and maintenance related to opening/closing operations, and improve reliability.
第３図は本発明の第２の実施例を示す図である。FIG. 3 is a diagram showing a second embodiment of the present invention.
この実施例が前記第１の実施例と異なる点は、動作異常
判定手段として、操作機構を駆動する液圧力を検出する
液圧カセンサ、Ｉｆ磁弁を制御する電圧を検出する電圧
センサ、周囲温度を検出する濃度センサからの各情報に
基いて、計測時間の補正を行なう補正手段を含ませた異
常判定手段を用いた点である。すなわち、３１は操作機
構を駆動する液圧力を検出する液圧力センサであり、３
２は周囲温度を計測するための温度センサである。また
３３．３４はそれぞれ投入コイル１０．引外しコイル１
１の両端に与えられるＩｌｌ １０電圧を測定する電圧
センサである。これらの各センサからの信号は全て演算
処理装置２０に入力される構成となりている。なお上記
以外は前記第１の実施例と同一の構成となっている。
引外し指令信号および投入指令信号が発せられた時点か
ら位置検出板１３が所定位置に達するまでの動作時間ｔ
は、液圧力Ｐ１周囲温度Ｔ、制御電圧Ｅ、の影響を受け
て変化する。これらの関係は試験データを基に、ｔ−ｆ
（Ｐ、Ｔ、Ｅ）の関数で表わすことができる。従って
前記計測時間に対し、液圧力センサ３１、ＷＡ度センサ
３２．電圧センサ３３．３４からの検出情報に基いた補
正を施すようにしたものである。This embodiment differs from the first embodiment in that, as operation abnormality determining means, a hydraulic pressure sensor detects the hydraulic pressure that drives the operating mechanism, a voltage sensor detects the voltage that controls the If magnetic valve, and an ambient temperature sensor. The point is that an abnormality determination means is used that includes a correction means for correcting the measurement time based on each information from the concentration sensor that detects the . That is, 31 is a hydraulic pressure sensor that detects the hydraulic pressure that drives the operating mechanism;
2 is a temperature sensor for measuring ambient temperature. In addition, 33 and 34 are the input coils 10 and 34, respectively. Tripping coil 1
This is a voltage sensor that measures the Ill 10 voltage applied across the Ill 1. All signals from these sensors are input to the arithmetic processing unit 20. Note that the configuration other than the above is the same as that of the first embodiment.
Operation time t from when the tripping command signal and the closing command signal are issued until the position detection plate 13 reaches the predetermined position
changes under the influence of the liquid pressure P1, the ambient temperature T, and the control voltage E. These relationships are based on test data, t-f
It can be expressed as a function of (P, T, E). Therefore, for the measurement time, the hydraulic pressure sensor 31, the WA degree sensor 32. Correction is performed based on detection information from voltage sensors 33 and 34.
この第２の実施例によれば、前記第１の実施例の作用効
果の他に、より正確な動作時間の監視を行ない得、異常
検知精度を上げる得るという利点がある。According to the second embodiment, in addition to the effects of the first embodiment, there is an advantage that more accurate operation time can be monitored and abnormality detection accuracy can be improved.
第４図は本発明の第３の実施例を示す図である。FIG. 4 is a diagram showing a third embodiment of the present invention.
この実施例が前記第２の実施例と異なる点は、位置検出
センサ１４．１６を開極状態および閉極状態のストロ′
−クエンドにそれぞれ配設し、位置検出センサ１５を開
極点に配設した点であるシこのように各位置検出センサ
１４〜１６を配置することにより、開閉動作時の「開極
時間」「閉極時間」を正確に監視することができる。な
お上記時間測定に使用される各センサとして無接点式の
ものを用いれば、より信頼性の高い時間測定を行なえる
。The difference between this embodiment and the second embodiment is that the position detection sensor 14.16 has a stroke in an open state and a closed state.
- By arranging the position detection sensors 14 to 16 in this way, which is the point where the position detection sensor 15 is arranged at the opening point, the "opening time" and "closing time" during opening and closing operations can be adjusted. "Polar time" can be accurately monitored. It should be noted that if non-contact type sensors are used for the above-mentioned time measurement, more reliable time measurement can be performed.
第５図は本発明の第４の実施例を示す図である。FIG. 5 is a diagram showing a fourth embodiment of the present invention.
この実施例が前記第２．第３の実施例と異なる点は、位
置検出センサ、液圧カセンサ、ｉｔ圧センサ。This example is the second example. The difference from the third embodiment is a position detection sensor, a hydraulic pressure sensor, and an IT pressure sensor.
温度センサに関し、光学的手法を適用した点である。す
なわち位置検出用として光学式センサ２４〜２６を用い
、位置検出指標として光学的反射板２７を用いている。The point is that an optical method was applied to the temperature sensor. That is, optical sensors 24 to 26 are used for position detection, and an optical reflection plate 27 is used as a position detection index.
そして上記光学センサ２４〜２６の電気的出力信号を一
旦電・光変換器４４〜４６にて光に変換し、これを光フ
アイバーケーブル４７〜４９を介して伝送するようにし
ている。The electrical output signals of the optical sensors 24-26 are once converted into light by electro-optic converters 44-46, and the light is transmitted via optical fiber cables 47-49.
一方、液圧力センサ３１．温度センサ３２．電圧センサ
３３．３４の電気的出力信号を、一旦電・光変換器５１
〜５４にてそれぞれ光に変換し、これを光フアイバーケ
ーブル６１〜６４を介して伝送するようにしている。そ
して伝送された光を、光・電変換器７１．７２により電
気信号に逆変換して演算処理装置２０に導入するように
している。On the other hand, the liquid pressure sensor 31. Temperature sensor 32. The electrical output signals of the voltage sensors 33 and 34 are once transferred to the electrical/optical converter 51.
- 54 are converted into light, respectively, and this is transmitted via optical fiber cables 61 - 64. The transmitted light is then inversely converted into an electrical signal by optical/electrical converters 71 and 72 and introduced into the arithmetic processing unit 20.
この実施例によれば、前記各実施例の作用効果の他に、
変電所内において使用される場合において開閉サージ等
の誘導の影響を受けにくいという効果を奏する。According to this embodiment, in addition to the effects of each of the above embodiments,
When used in a substation, it has the effect of being less susceptible to induction effects such as switching surges.
なお本発明は前記各実施例に限定されるものではなく、
本発明の要旨を逸脱しない範囲で種々変形実施可能であ
るのは勿論である。Note that the present invention is not limited to the above embodiments,
Of course, various modifications can be made without departing from the spirit of the invention.
本発明は、電力開閉器の開閉接点を開閉操作する如くそ
の一部を上記開閉接点と連結された操作機構における上
記連結部分に位置検出用指標を取付け、この位置検出用
指標の位置を検出可能な如く上記位置検出用指標の移動
経路に沿って所定位置に位置検出センサを配設し、前記
電力開閉器の開閉動作指令が発せられた時点から前記位
置検出センサにて検出信号が得られるまでの時間を計測
し、この計測時間を基準時間と比較して動作異常の有無
を判定するようにしたことを特徴としている。The present invention is capable of detecting the position of a position detection indicator by attaching a position detection indicator to the connecting part of the operation mechanism, a part of which is connected to the switching contact of a power switch so as to open and close the switching contact. A position detection sensor is disposed at a predetermined position along the movement path of the position detection index, and from the time when the opening/closing operation command of the power switch is issued until a detection signal is obtained by the position detection sensor. The device is characterized in that the time is measured, and this measured time is compared with a reference time to determine whether there is an abnormality in operation.
したがって本発明によれば、動作異常の有無を自己診断
する機能を有し、随時適確に異常発生を検知可能で、開
閉器の保守・保全の省力化をはかれると共に、信頼性の
高い動作が期待できる電力開閉器用操作装置を提供でき
る。Therefore, according to the present invention, the present invention has a function of self-diagnosing the presence or absence of abnormality in operation, can accurately detect the occurrence of abnormality at any time, saves labor in maintenance and maintenance of the switch, and ensures highly reliable operation. It is possible to provide a promising power switch operating device.
第１図は本発明をしゃ断器用油圧操作装置に適用した第
１の実施例を示す図、第２図は同実施例の動作説明用の
波形図、第３図は本発明の第２の実施例を示す図、第４
図は本発明の第３の実施例を示す図、第５図は本発明の
第４の実施例を示す図である。
１・・・しゃ断器、２・・・固定接触子、３・・・可動
接触子、４・・・液体タンク、５・・・ポンプ、６・・
・アキュムレータ、７・・・ピストン、８・・・操作シ
リンダ、９・・・ピストン、１０・・・投入コイル、１
１・・・引外しコイル、１２・・・操作ロッド、１３・
・・位置検出板、１４・・・閉路位置検出センサ、１５
・・・中間位置検出センサ、１６・・・開路位置検出セ
ンサ、１７〜１９・・・ケーブル、２０・・・演算処理
装置、３１・・・液圧力センサ、３２・・・温度センサ
、３３・・・電圧センサく投入コイル用）、３４・・・
電圧センサ（引外しコイル用）、２４〜２６・・・光学
式センサ、２７・・・位置検出用光反射板、４４〜４６
．５１〜５４・・・Ｅ１０変換器、４７〜４９．６１〜
６４・・・光フアイバケーブル、７１．７２−・・０／
Ｅ変換器。
出願人代理人 弁理士 鈴圧式彦
第１図
第２図
第３図
第４図FIG. 1 is a diagram showing a first embodiment in which the present invention is applied to a hydraulic operating device for a circuit breaker, FIG. 2 is a waveform diagram for explaining the operation of the same embodiment, and FIG. 3 is a diagram showing a second embodiment of the present invention. Illustration showing an example, 4th
The figure shows a third embodiment of the invention, and FIG. 5 shows a fourth embodiment of the invention. 1... Breaker, 2... Fixed contact, 3... Movable contact, 4... Liquid tank, 5... Pump, 6...
・Accumulator, 7... Piston, 8... Operation cylinder, 9... Piston, 10... Closing coil, 1
1...Tripping coil, 12...Operation rod, 13.
...Position detection plate, 14...Closed circuit position detection sensor, 15
... Intermediate position detection sensor, 16... Open circuit position detection sensor, 17-19... Cable, 20... Arithmetic processing unit, 31... Liquid pressure sensor, 32... Temperature sensor, 33.・・Voltage sensor (for closing coil), 34...
Voltage sensor (for tripping coil), 24-26... Optical sensor, 27... Light reflection plate for position detection, 44-46
．． 51-54...E10 converter, 47-49.61-
64...Optical fiber cable, 71.72-...0/
E converter. Applicant's agent Patent attorney Shikihiko Suzutsuta Figure 1 Figure 2 Figure 3 Figure 4
Claims (6)
部を上記開閉接点と連結された操作機構と、この操作機
構の上記連結部分に取付けた位置検出用指標と、この位
置検出用指標の位置を検出可能な如く上記位置検出用指
標の移動経路に沿って所定位置に配設された位置検出セ
ンサと、前記電力開閉器の開閉動作指令が発せられた時
点から前記位置検出センサにて検出信号が得られるまで
の時間を計測しこの計測時間を基準時間と比較して動作
異常の有無を判定する動作異常判定手段とを備えたこと
を特徴とする電力開閉器用操作装置。(1) An operating mechanism whose part is connected to the switching contact of the power switch so as to open and close the switching contact, a position detection indicator attached to the connection part of this operating mechanism, and this position detection indicator a position detection sensor disposed at a predetermined position along the movement path of the position detection index so as to be able to detect the position of the position detection index; 1. An operating device for a power switch, comprising: an operation abnormality determining means that measures the time until a detection signal is obtained and compares the measured time with a reference time to determine the presence or absence of an operational abnormality.
る特許請求の範囲第（１）項記載の電力開閉器用操作装
置。(2) The operating device for a power switch according to claim (1), wherein the operating mechanism is a hydraulic operating mechanism.
を検出する液圧力センサ、電磁弁を制御する電圧を検出
する電圧センサ、周囲温度を検出する温度センサからの
各情報に基いて計測時間の補正を行なう補正手段を含む
ものであることを特徴とする特許請求の範囲第（２）項
記載の電力開閉器用操作装置。(3) The operation abnormality determination means performs measurement based on information from a fluid pressure sensor that detects the fluid pressure that drives the operating mechanism, a voltage sensor that detects the voltage that controls the solenoid valve, and a temperature sensor that detects the ambient temperature. The power switch operating device according to claim 2, further comprising a correction means for correcting time.
トロークエンドおよび開極点にそれぞれ配設されている
ことを特徴とする特許請求の範囲第（１）項または第（
２）項記載の電力開閉器用操作装置。(4) The position detection sensor is disposed at the stroke end and the opening point in the open state and the open state, respectively.
2) The power switch operating device described in item 2).
度センサは、無接点式のものであることを特徴とする特
許請求の範囲第（３）項記載の電力開閉器用操作装置。(5) The power switch operating device according to claim (3), wherein the position detection sensor, liquid pressure sensor, voltage sensor, and temperature sensor are of a non-contact type.
度センサは、光学的手法を適用したものであることを特
徴とする特許請求の範囲第（３）項記載の電力開閉器用
操作装置。(6) The power switch operating device according to claim (3), wherein the position detection sensor, hydraulic pressure sensor, voltage sensor, and temperature sensor are those to which an optical method is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6694385A JPS61227320A (en) | 1985-03-30 | 1985-03-30 | Operator for power switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6694385A JPS61227320A (en) | 1985-03-30 | 1985-03-30 | Operator for power switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61227320A true JPS61227320A (en) | 1986-10-09 |
Family
ID=13330592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6694385A Pending JPS61227320A (en) | 1985-03-30 | 1985-03-30 | Operator for power switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61227320A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63257142A (en) * | 1987-04-13 | 1988-10-25 | 株式会社日立製作所 | Operation monitor for switch |
| CN103630832A (en) * | 2012-08-27 | 2014-03-12 | 特变电工新疆新能源股份有限公司 | Power-on self-detection method and device of switch piece in electric power electronic device |
| WO2022264442A1 (en) * | 2021-06-15 | 2022-12-22 | 株式会社東芝 | Current-limiting device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5541621A (en) * | 1978-09-18 | 1980-03-24 | Tokyo Shibaura Electric Co | Switching device monitoring unit |
| JPS5556318A (en) * | 1978-10-20 | 1980-04-25 | Hitachi Ltd | Trouble shooting device for power breaker |
| JPS5990061A (en) * | 1983-07-01 | 1984-05-24 | Masahiko Inoue | Device for transmitting output signal of capacitance potential device |
| JPS59194215A (en) * | 1983-04-18 | 1984-11-05 | Hitachi Constr Mach Co Ltd | Fault predicting device of hydraulic system |
-
1985
- 1985-03-30 JP JP6694385A patent/JPS61227320A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5541621A (en) * | 1978-09-18 | 1980-03-24 | Tokyo Shibaura Electric Co | Switching device monitoring unit |
| JPS5556318A (en) * | 1978-10-20 | 1980-04-25 | Hitachi Ltd | Trouble shooting device for power breaker |
| JPS59194215A (en) * | 1983-04-18 | 1984-11-05 | Hitachi Constr Mach Co Ltd | Fault predicting device of hydraulic system |
| JPS5990061A (en) * | 1983-07-01 | 1984-05-24 | Masahiko Inoue | Device for transmitting output signal of capacitance potential device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63257142A (en) * | 1987-04-13 | 1988-10-25 | 株式会社日立製作所 | Operation monitor for switch |
| CN103630832A (en) * | 2012-08-27 | 2014-03-12 | 特变电工新疆新能源股份有限公司 | Power-on self-detection method and device of switch piece in electric power electronic device |
| WO2022264442A1 (en) * | 2021-06-15 | 2022-12-22 | 株式会社東芝 | Current-limiting device |
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