JP5317724B2 - Switch remote monitoring method, switch remote monitoring system - Google Patents

Switch remote monitoring method, switch remote monitoring system Download PDF

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JP5317724B2
JP5317724B2 JP2009017220A JP2009017220A JP5317724B2 JP 5317724 B2 JP5317724 B2 JP 5317724B2 JP 2009017220 A JP2009017220 A JP 2009017220A JP 2009017220 A JP2009017220 A JP 2009017220A JP 5317724 B2 JP5317724 B2 JP 5317724B2
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switch
remote monitoring
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control device
log
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JP2010178475A (en
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康宏 中
満洋 野々上
隆博 木多
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Chugoku Electric Power Co Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To reduce costs for collectively and remotely monitoring operation of each switch of an electric supply station. <P>SOLUTION: A remote monitoring control device 200 transmits an operation command to a switch being an operation target and outputs an operation log of the switch being the operation target. A switch collective monitoring device 100 measures a master current I1 flowing in a wiring circuit breaker MCCB2 of a control power supply so as to record it as a control current waveform of the switch being the operation target during a period from the start of operation of the switch as the operation target until the end of the operation. The switch collective monitoring device 100 detects a time period during which the control current flows on the basis of the recorded control current waveform as the operating time of the switch being the operation target. The switch collective monitoring device 100 transmits an operating time signal S2, indicating the detected operating time of the switch being the operation target, to the remote monitoring control device 200. The remote monitoring control device 200 outputs an operating time log of the switch being the operation target indicated by the operating time signal S2 received from the switch collective monitoring device 100 successively after the output of the operation log. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

本発明は、開閉器一括遠隔監視方法、開閉器一括遠隔監視システムに関する。   The present invention relates to a switch collective remote monitoring method and a switch collective remote monitoring system.

遠隔地にある制御所(給電所も含む)より電気所(発電所、変電所等)に配置された開閉器(遮断器、断路器)の状態を把握するための開閉器遠隔監視システムとして、特許文献1、2に開示された技術が提案されている。   As a switch remote monitoring system to grasp the status of switches (breakers, disconnectors) located at electrical stations (power plants, substations, etc.) from remote control stations (including power stations), Techniques disclosed in Patent Documents 1 and 2 have been proposed.

特許文献1では、変電所に配置される遮断器に、当該遮断器への電流入力を検知するためのCTセンサ、開閉指令入力を検知するためのTCセンサ、接点コンタクトを検知するためのCCセンサ及びこれらのセンサにより検知されたデータを収集するデータ収集装置を設けることが開示されている。また、変電所と通信網を介して通信可能に接続された監視センターの監視装置が、上記のセンサにより検知された信号を受信することで、遠隔地にある変電所の遮断器の特性のトレンドを画面表示することが開示されている。
特許文献2では、変電所に設置された遠方操作機器である遮断器又は断路器を開閉させるための指令信号を、変電所ごとにまたは複数の変電所毎に設けられた遠制装置から当該遮断器(又は断路器)に入力し、当該指令信号に対する当該遮断器(又は断路器)の開閉動作に応じて作動する補助スイッチ(又はリミットスイッチ)の出力信号を当該遮断器(又は断路器)から当該遠制装置に入力し、当該補助スイッチ(又はリミットスイッチ)の出力信号に応じて当該遮断器(又は断路器)の状態を判定することが開示されている。また、遠制装置が、指令信号を遮断器(又は断路器)に入力した時間から補助スイッチ(又はリミットスイッチ)の出力信号が変化するまでの時間を測定し、この測定した時間の長短により遮断器(又は断路器)の状態を判定することが開示されている。
In Patent Document 1, a circuit breaker disposed in a substation includes a CT sensor for detecting a current input to the circuit breaker, a TC sensor for detecting a switching command input, and a CC sensor for detecting a contact contact. And providing a data collection device for collecting data detected by these sensors. In addition, the monitoring device of the monitoring center that is communicably connected to the substation via the communication network receives the signal detected by the above sensor, so that the trend of the characteristics of the circuit breaker of the substation in the remote place is received. Is displayed on the screen.
In Patent Document 2, a command signal for opening and closing a circuit breaker or disconnector that is a remote operation device installed in a substation is transmitted from the distance control device provided for each substation or for each of a plurality of substations. The output signal of the auxiliary switch (or limit switch) that operates according to the opening / closing operation of the circuit breaker (or disconnector) in response to the command signal is input from the circuit breaker (or disconnector). It is disclosed that the state of the circuit breaker (or disconnector) is determined in accordance with the output signal of the auxiliary switch (or limit switch) that is input to the distance control device. Also, the distance control device measures the time from when the command signal is input to the circuit breaker (or disconnector) until the output signal of the auxiliary switch (or limit switch) changes. Determining the state of a vessel (or disconnector) is disclosed.

特開2002−171696号公報JP 2002-171696 A 特開2005−168121号公報JP 2005-168121 A

しかし、特許文献1に開示された開閉器遠隔監視システムを構築する場合には、変電所に配置される複数の遮断器等の諸設備毎に、当該諸設備への電流入力を検知するためのCTセンサ、開閉指令入力を検知するためのTCセンサ、接点コンタクトを検知するためのCCセンサ及びこれらのセンサにより検知されたデータを収集するデータ収集装置を設ける必要があり、システム構築コストが過大になるという課題がある。   However, when constructing the switch remote monitoring system disclosed in Patent Document 1, for each facility such as a plurality of circuit breakers arranged in a substation, a current input to the facilities is detected. It is necessary to provide a CT sensor, a TC sensor for detecting an opening / closing command input, a CC sensor for detecting a contact contact, and a data collecting device for collecting data detected by these sensors, and the system construction cost is excessive. There is a problem of becoming.

また、特許文献2に開示された開閉器遠隔監視システムを構築する場合には、変電所毎に設けられた遠制装置は、変電所に設置された複数の遮断器(又は断路器)毎に、開閉動作に応じて作動する各補助スイッチ(又はリミットスイッチ)の出力信号を入力するための入力端子を必要とするので、その装置規模が大きくなるという課題がある。また、遠制装置は、入力された複数の補助スイッチ(又はリミットスイッチ)の出力信号に対し、遮断器(又は断路器)に指令信号を入力した時間から当該出力信号が変化するまでの時間を測定する機能や、測定された時間の長短により対象とする遮断器(又は断路器)の状態を判定する機能を備える必要がある。このため、それらの機能を実現するための制御回路が複雑化するとともにその回路規模が過大になるという課題もある。   Moreover, when constructing the switch remote monitoring system disclosed in Patent Document 2, the distance control device provided for each substation is provided for each of a plurality of circuit breakers (or disconnectors) installed in the substation. Since an input terminal for inputting the output signal of each auxiliary switch (or limit switch) that operates according to the opening / closing operation is required, there is a problem that the device scale becomes large. In addition, the distance control device determines the time from when the command signal is input to the circuit breaker (or disconnector) to when the output signal changes with respect to the input signals of the plurality of auxiliary switches (or limit switches). It is necessary to provide a function to measure and a function to determine the state of the target circuit breaker (or disconnector) depending on the length of the measured time. For this reason, there is a problem that the control circuit for realizing these functions becomes complicated and the circuit scale becomes excessive.

前述した課題を解決する主たる本発明は、遠隔監視制御装置が制御所に配置され、当該遠隔監視制御装置と通信可能に接続された遠隔監視制御対象機器である複数の開閉器と、当該複数の開閉器の各制御部及び当該複数の開閉器以外の機器の各制御部に流れる制御電流を配線用遮断器より分岐して供給する制御電源と、当該複数の開閉器の動作を一括監視する開閉器一括監視装置と、が電気所に配置され、前記遠隔監視制御装置が前記開閉器一括監視装置を介して前記複数の開閉器の動作を一括監視する開閉器一括遠隔監視方法であって、前記遠隔監視制御装置が、前記複数の開閉器のうち操作対象の開閉器に操作指令を送信するとともに、当該操作対象の開閉器の操作ログを出力するステップと、前記開閉器一括監視装置が、前記遠隔監視制御装置からの操作指令に基づき前記操作対象の開閉器の動作が開始してから終了するまでの間、前記制御電源の前記配線用遮断器を流れる主幹電流波形を測定して前記操作対象の開閉器の制御電流波形として記録するステップと、前記開閉器一括監視装置が、記録された制御電流波形に基づき制御電流が流れた時間を前記操作対象の開閉器の動作時間として検出するステップと、前記開閉器一括監視装置が、検出した前記操作対象の開閉器の動作時間を示す動作時間信号を、前記遠隔監視制御装置に送信するステップと、前記遠隔監視制御装置が、前記開閉器一括監視装置から受信した動作時間信号が示す前記操作対象の開閉器の動作時間ログを、前記操作ログに続けて出力するステップと、を有することを特徴とする。 The main present invention for solving the above-described problems is that a remote monitoring and control device is disposed in a control station, and a plurality of switches that are remote monitoring and control target devices connected to be able to communicate with the remote monitoring and control device, the plurality of switches A control power supply that branches and supplies the control current flowing through each control unit of the switch and each control unit of the equipment other than the plurality of switches from the circuit breaker for wiring, and a switch that collectively monitors the operations of the plurality of switches A switch batch remote monitoring method, wherein the switch batch monitoring device is disposed at an electric station, and the remote monitoring and control device batch-monitors the operation of the plurality of switches via the switch batch monitoring device. The remote monitoring and control device transmits an operation command to the operation target switch among the plurality of switches, and outputs an operation log of the operation target switch. Remote monitoring Based on the operation command from the control device, the main current waveform flowing through the wiring circuit breaker of the control power source is measured and the operation target switch is operated until the operation of the operation target switch starts and ends. A step of recording as a control current waveform of a switch, and a step of detecting the time when the control current flows based on the recorded control current waveform as the operation time of the switch as the operation target, The switch collective monitoring device transmits an operation time signal indicating the detected operation time of the switch to be operated to the remote monitoring control device; and the remote monitoring control device is connected to the switch collective monitoring device. And a step of outputting an operation time log of the switch to be operated indicated by the received operation time signal following the operation log.

また、上記の開閉器一括遠隔監視方法であって、前記制御電流波形として記録するステップは、前記開閉器一括監視装置が、測定した主幹電流波形から定常電流を差し引いた相対電流波形が、前記開閉器の制御電流波形の特性に基づき前記複数の開閉器のいずれかの制御部に流れる制御電流波形であるか否かを判定するステップと、前記開閉器一括監視装置が、前記制御電流波形であることが判定されたとき、測定した主幹電流波形を制御電流波形として記録するステップと、を含み、当該開閉器一括遠隔監視方法は、前記開閉器一括監視装置が、制御電流波形の記録が完了したことを示す状態信号を、前記動作時間信号とともに前記遠隔監視制御装置に送信するステップと、前記遠隔監視制御装置が、前記操作指令を送信した後に前記開閉器一括監視装置より前記動作時間信号とともに前記状態信号を受信するか否かを監視するステップと、を更に有し、前記操作ログに続けて出力するステップでは、前記遠隔監視制御装置が、前記状態信号を受信した場合、前記開閉器一括監視装置の動作ログを、前記操作ログに続けて出力し、前記動作時間ログを、前記動作ログに続けて出力することとしてもよい。 Further, in the above-described switch batch remote monitoring method, the step of recording as the control current waveform includes a step in which a relative current waveform obtained by subtracting a steady current from a main current waveform measured by the switch batch monitor is the switch Determining whether or not the control current waveform flows through one of the plurality of switches based on characteristics of the control current waveform of the switch, and the switch collective monitoring device is the control current waveform Recording the measured main current waveform as a control current waveform, and the switch collective remote monitoring method has completed the recording of the control current waveform by the switch collective monitoring device. A state signal indicating that the operation time signal is transmitted to the remote monitoring and control device, and the remote monitoring and control device transmits the operation command and then opens and closes the open / close state. A step of monitoring whether or not to receive the status signal with the operation time signal from the batch monitoring device, further comprising a, in the step of continuously output to the operation log, the remote monitoring and control device, the status signal When the operation log is received, the operation log of the switchgear batch monitoring device may be output following the operation log, and the operation time log may be output following the operation log .

また、上記の開閉器一括遠隔監視方法であって、前記遠隔監視制御装置が、前記動作時間信号が示す前記操作対象の開閉器の動作時間と予め記憶しておいた前記開閉器の標準動作時間との差が基準値以内か否かを判定するステップと、前記遠隔監視制御装置が、前記基準値外であることが判定されたとき、前記操作対象の開閉器の動作の異常ログを、前記動作時間ログに続けて出力するステップと、を有してもよい。   Further, in the above-described switch collective remote monitoring method, the remote monitoring and control device stores the operation time of the switch to be operated indicated by the operation time signal and the standard operation time of the switch previously stored. Determining whether or not the difference is within a reference value, and when it is determined that the remote monitoring and control device is outside the reference value, an abnormality log of the operation of the operation target switch, And a step of outputting following the operation time log.

また、上記の開閉器一括遠隔監視方法であって、前記開閉器一括監視装置が、前記動作時間信号が示す前記操作対象の開閉器の動作時間と予め記憶しておいた前記開閉器の標準動作時間との差が基準値以内か否かを判定するステップと、前記開閉器一括監視装置が、前記基準値外であることが判定されたとき、前記操作対象の開閉器の動作の異常通知信号を、前記遠隔監視制御装置に送信するステップと、前記遠隔監視制御装置が、前記開閉器一括監視装置より受信した前記異常通知信号に基づき、前記操作対象の開閉器の動作の異常ログを、前記動作時間ログに続けて出力するステップと、を有してもよい。   Further, in the above-mentioned switch collective remote monitoring method, the switch collective monitoring apparatus stores the operation time of the switch to be operated indicated by the operation time signal and the standard operation of the switch stored in advance. A step of determining whether or not a difference from time is within a reference value; and when the switch collective monitoring device determines that the difference is outside the reference value, an abnormality notification signal of the operation of the switch to be operated Transmitting to the remote monitoring and control device, and based on the abnormality notification signal received from the switch collective monitoring device by the remote monitoring and control device, an abnormality log of the operation of the operation target switch, And a step of outputting following the operation time log.

また、前述した課題を解決する主たるその他の本発明は、遠隔監視制御装置が制御所に配置され、当該遠隔監視制御装置と通信可能に接続された遠隔監視制御対象機器である複数の開閉器と、当該複数の開閉器の各制御部及び当該複数の開閉器以外の機器の各制御部に流れる制御電流を配線用遮断器より分岐して供給する制御電源と、当該複数の開閉器の動作を一括監視する開閉器一括監視装置と、が電気所に配置され、前記遠隔監視制御装置が前記開閉器一括監視装置を介して前記複数の開閉器の動作を一括監視する開閉器一括遠隔監視システムであって、前記開閉器一括監視装置は、前記配線用遮断器を流れる主幹電流波形を測定する電流波形測定部と、前記遠隔監視制御装置からの操作指令に基づき操作対象の開閉器の動作が開始してから終了するまでの間、前記電流波形測定部により測定された主幹電流波形を前記操作対象の開閉器の制御電流波形として記録する波形記録部と、前記記録装置により記録された制御電流波形に基づき制御電流が流れた時間を前記操作対象の開閉器の動作時間として検出して当該動作時間を示す動作時間信号を出力する動作時間検出部と、を有し、前記遠隔監視制御装置は、前記複数の開閉器のうち操作指令を送信した操作対象の開閉器の操作ログと、当該操作対象の開閉器に操作指令を送信した後に前記開閉器一括監視装置より受信する動作時間信号が示す当該操作対象の開閉器の動作時間ログと、を出力するログ出力部を有すること、を特徴とする。 In addition, a main other present invention for solving the above-described problems is that a remote monitoring control device is disposed in a control station, and a plurality of switches that are remote monitoring control target devices connected to be able to communicate with the remote monitoring control device. A control power supply that branches and supplies a control current flowing through each control unit of the plurality of switches and each control unit of the equipment other than the plurality of switches from the circuit breaker for wiring, and an operation of the plurality of switches a switch batch monitoring apparatus for collectively monitoring, but are arranged in an electric plant, in switch collectively remote monitoring system wherein the remote monitoring and control device collectively monitors the operation of the plurality of switches via said switch collectively monitoring device The switch overall monitoring device starts operation of a current waveform measuring unit that measures a main current waveform flowing through the circuit breaker for wiring and an operation target switch based on an operation command from the remote monitoring control device. do it Until the operation is completed, based on the waveform recording unit that records the main current waveform measured by the current waveform measuring unit as the control current waveform of the switch to be operated, and the control current waveform recorded by the recording device An operation time detection unit that detects a time when a control current flows as an operation time of the switch to be operated and outputs an operation time signal indicating the operation time, and the remote monitoring control device includes the plurality of The operation target indicated by the operation time signal received from the switch collective monitoring device after transmitting the operation command to the operation target switch and the operation log of the operation target switch that has transmitted the operation command And a log output unit for outputting an operation time log of the switch.

本発明によれば、電気所の各開閉器の動作を一括して遠隔監視するコストを低減することができる。   ADVANTAGE OF THE INVENTION According to this invention, the cost of collectively monitoring the operation | movement of each switch of an electric station can be reduced.

遮断器が投入操作した時の直流電源装置の配線用遮断器MCCBに流れる主幹電流波形及びその電流変化率の時間推移を示した図である。It is the figure which showed the time transition of the main current waveform which flows into the circuit breaker MCCB for wiring of the DC power supply device when the circuit breaker is turned on, and the current change rate. 遮断器の引外し操作の際に引外しコイルに流れる引外しコイル電流の波形(制御電流波形)を示した図である。It is the figure which showed the waveform (control current waveform) of the trip coil current which flows into the trip coil in the case of the trip operation of a circuit breaker. 開閉器一括監視システムの構成を示した図である。It is the figure which showed the structure of the switch collective monitoring system. 遠隔監視制御装置の構成を示した図である。It is the figure which showed the structure of the remote monitoring control apparatus. 開閉器一括監視装置の構成を示した図である。It is the figure which showed the structure of the switch collective monitoring apparatus. 開閉器一括監視装置による遮断器の制御電流波形及び操作電流波形の判定フローを示したフローチャートである。It is the flowchart which showed the determination flow of the control current waveform and the operation current waveform of the circuit breaker by the switch collective monitoring device. 遠隔監視制御装置による遮断器の動作監視フローを示したフローチャートである。It is the flowchart which showed the operation | movement monitoring flow of the circuit breaker by a remote monitoring control apparatus.

<<<開閉器一括遠隔監視システムの概要>>>
本発明の実施の形態の開閉器一括遠隔監視システムは、制御所(給電所を含む)に配置された遠隔監視制御装置と、電気所(発電所、変電所等)に配置された複数の開閉器(遮断器、断路器)と接続される遠制装置(遠隔制御装置)と、を通信網を介して通信可能に接続し、電気所内に配置された遠隔監視制御対象機器である複数の開閉器の動作を一括して制御所内に配置された遠隔監視制御装置により遠隔監視を行うものである。
<<< Overview of Switch Remote Monitoring System >>>
The switch collective remote monitoring system according to the embodiment of the present invention includes a remote monitoring and control device disposed in a control station (including a power supply station) and a plurality of switching devices disposed in an electric station (such as a power plant and a substation). A remote control device (remote control device) connected to a breaker (breaker, disconnector) is communicably connected via a communication network, and is a plurality of open / close devices that are remotely monitored and controlled devices placed in an electric station Remote monitoring is performed by a remote monitoring and control device arranged in the control station collectively.

また、複数の開閉器の動作を一括監視すべく、電気所に配置された複数の開閉器の各制御部に流れる制御電流の供給源である制御電源において、当該制御電源が具備する配線用遮断器MCCB(Molded Case Circuit Breaker)に流れる主幹電流波形を測定する電流波形測定部を設ける。つまり、制御電源電流を各機器に分岐する前の経路上に電流波形測定部を設けることで、全ての機器の制御電流波形を一括して測定できる。   In addition, in order to monitor the operation of a plurality of switches collectively, in a control power source that is a supply source of a control current that flows to each control unit of a plurality of switches arranged in an electric station, the wiring breaker that the control power source has A current waveform measuring unit is provided for measuring a main current waveform flowing in a machine case MCCB (Molded Case Circuit Breaker). That is, by providing the current waveform measuring unit on the path before the control power supply current is branched to each device, the control current waveforms of all the devices can be measured collectively.

さらに、複数の開閉器の動作を一括監視するための開閉器一括監視装置を電気所に配置する。開閉器一括監視装置は、上記の電流波形測定部により測定された制御電源の配線用遮断器MCCBに流れる主幹電流波形を所定時間分記録するとともに、投入操作時又は引外し操作時に開閉器の制御部に流れる制御電流波形であるか否かの判定を行う。そして、主幹電流波形が制御電流波形であると判定した場合、開閉器の動作波形として記録(装置内に保存)する。   Furthermore, a switch collective monitoring device for collectively monitoring the operation of a plurality of switches is arranged at the electric station. The switchgear monitoring device records the main current waveform flowing through the circuit breaker MCCB of the control power source measured by the current waveform measuring unit for a predetermined time, and controls the switch at the time of turning on or off. It is determined whether or not the waveform is a control current flowing through the section. When it is determined that the main current waveform is a control current waveform, it is recorded (stored in the apparatus) as an operation waveform of the switch.

制御電流波形であるか否かの判定は、制御電源の主幹電流波形により導出される特性を用いて行う。尚、主幹電流波形の測定箇所である直流電源装置の配線用遮断器MCCBは、常時一定量の変化の少ない定常電流が流れているため、主幹電流波形の各測定値から定常電流を差し引いた相対電流波形に基づいて判定を行う。   Whether or not the control current waveform is present is determined using characteristics derived from the main current waveform of the control power source. The DC breaker MCCB of the DC power supply device, which is the measurement location of the main current waveform, constantly flows a constant current with a small amount of change. Therefore, the relative value obtained by subtracting the normal current from each measurement value of the main current waveform. The determination is made based on the current waveform.

図1は、開閉器の一例として遮断器が投入操作した時の制御電源の配線用遮断器MCCBに流れる主幹電流波形及びその電流変化率の時間推移を示した図である。尚、電流変化率は、5サンプリングの移動平均で算出した値とする。図1に示す主幹電流波形及びその電流変化率の時間推移より以下の特性を導出できる。   FIG. 1 is a diagram showing a time course of a main current waveform flowing through a circuit breaker MCCB for control power supply when the circuit breaker is turned on as an example of a switch and the current change rate. The current change rate is a value calculated by a moving average of 5 samplings. The following characteristics can be derived from the time course of the main current waveform and the current change rate shown in FIG.

第1に、主幹電流波形が遮断器の制御電流波形である場合の波高値(定常電流を差し引いた相対電流波形)は、1A以上(通常は5A程度)である(電流量特性)。第2に、主幹電流波形が遮断器の制御電流波形となる期間は、比較的短時間(1S未満が殆ど)である(時間特性)。第3に、図1中の破線で囲まれた箇所Aのように、遮断器の投入操作が開始されると同時に、L/Rの時定数を持って主幹電流波形(制御電流波形)が上昇する(波形開始特性)。第4に、図1中の破線で囲まれた箇所Bのように、遮断器の補助接点が投入操作完了時に開くときアーク抵抗により主幹電流波形(制御電流波形)が急減する(波形終了特性)。第5に、図1中の破線で囲まれた箇所Cのように、主幹電流波形(制御電流波形)がL/Rの時定数を持って上昇していく過程で、電流上昇率が一旦急変する(波形中間特性)。   First, the peak value (relative current waveform obtained by subtracting the steady current) when the main current waveform is the control current waveform of the circuit breaker is 1 A or more (usually about 5 A) (current amount characteristic). Second, the period in which the main current waveform becomes the control current waveform of the circuit breaker is relatively short (mostly less than 1S) (time characteristics). Thirdly, as shown in a portion A surrounded by a broken line in FIG. 1, the operation of closing the circuit breaker is started, and at the same time, the main current waveform (control current waveform) rises with an L / R time constant. (Waveform start characteristic) Fourth, the main current waveform (control current waveform) sharply decreases due to arc resistance when the auxiliary contact of the circuit breaker opens when the closing operation is completed, as indicated by a portion B surrounded by a broken line in FIG. 1 (waveform end characteristic). . Fifth, in the process where the main current waveform (control current waveform) rises with a time constant of L / R as shown in a portion C surrounded by a broken line in FIG. (Wave intermediate characteristics)

以上の5つの特性のうち、少なくとも第3、第4、第5の特性(好ましくは全ての特性)を満足する主幹電流波形が遮断器の制御電流波形である、と判定することができる。   Of the above five characteristics, it can be determined that the main current waveform that satisfies at least the third, fourth, and fifth characteristics (preferably all characteristics) is the control current waveform of the circuit breaker.

さらに、開閉器一括監視装置は、上記の電流測定手段により測定された主幹電流波形を制御電流波形と判定したときに生成する状態信号と、制御所の遠隔監視制御装置より電気所の複数の開閉器の中で指定された開閉器に対し所定の操作が行われる場合、指定された開閉器の操作開始から所定の補助接点が操作終了時に動作するまでの時間を示す動作時間信号と、を遠制装置を介して制御所の遠隔監視制御装置に送信する。   In addition, the switchgear collective monitoring device generates a status signal generated when the main current waveform measured by the current measuring means is determined to be a control current waveform, and a plurality of switching of the electric station from the remote monitoring control device of the control station. When a predetermined operation is performed on the specified switch in the switch, an operation time signal indicating the time from the start of operation of the specified switch until the predetermined auxiliary contact operates at the end of the operation is It is transmitted to the remote monitoring control device at the control station via the control device.

制御所の遠隔監視制御装置は、自身が遠隔操作を行った開閉器を特定することが容易であるため、電気所の遠制装置より送信された状態信号及び動作時間信号に基づいて、通常の開閉器の操作ログの後に続いて、当該開閉器の動作時間ログを出力する仕組みを設ける。この出力されたログを参照することで、電気所の開閉器を操作する度に、開閉器の動作時間の確認が可能となる。   Since it is easy for the remote monitoring and control device of the control station to identify the switch that has been remotely operated, the normal monitoring and control device of the control station is based on the status signal and the operation time signal transmitted from the distance control device of the electric station. A mechanism for outputting an operation time log of the switch is provided following the switch operation log. By referring to the output log, it is possible to check the operation time of the switch every time the switch of the electric station is operated.

また、制御所の遠隔監視制御装置は、電気所の各開閉器の標準動作時間や定格等の情報を予め格納しておき、開閉器の操作に応じて動作時間信号が伝送されてくる度に標準動作間と比較することで、当該開閉器の動作が正常であるか否かの判定や不具合の兆候があるか否か等の判定を行う。これにより、制御所の遠隔監視制御装置は、電気所の各開閉器の状態をリアルタイムで把握することが可能となる。   In addition, the remote monitoring and control device of the control station stores in advance information such as the standard operation time and rating of each switch in the electric station, and each time an operation time signal is transmitted according to the operation of the switch. By comparing with the standard operation, it is determined whether or not the operation of the switch is normal and whether or not there is a sign of malfunction. Thereby, the remote monitoring and control device of the control station can grasp the state of each switch of the electric station in real time.

開閉器の動作不具合の兆候を開閉器の制御電流波形により判定できることを、図2に示す遮断器の引外し操作の際に引外しコイルに流れる引外しコイル電流波形(制御電流波形)を例に挙げて説明する。   An example of the trip coil current waveform (control current waveform) that flows in the trip coil during the trip operation of the circuit breaker shown in FIG. 2 is that the indication of the malfunction of the switch can be determined by the control current waveform of the switch. I will give you a description.

図2に示されるように、引外しコイル電流波形の動作時間を5つの区間D1〜D5に区分した場合、5つの区間D1〜D5は次の要因により延長することが推定される。   As shown in FIG. 2, when the operating time of the trip coil current waveform is divided into five sections D1 to D5, it is estimated that the five sections D1 to D5 are extended due to the following factors.

区間D1は、引外しコイルのプランジャーロッド部2がグリス固着やピンのかじり等が要因となって動作しない場合に、延長することが推定される。区間D2は、引外しコイルのプランジャーロッド部2がピン(不図示)のかじり等が要因となってスムーズに動作しない場合に、延長することが推定される。区間D3は、引外しコイルのプランジャーロッド部2は動作したがリンク機構3の動作がグリス固着やピンのかじり等が要因となって重くなる場合に、延長することが推定される。区間D4は、引外しコイルのプランジャーロッド部2は動作したが、リンク機構3の動作時間が間延びしたか又は遮断器の主回路接点(パレットスイッチのa接点)が切り遅れた場合に、延長することが推定される。区間D5は、遮断器の主回路接点が異常の場合、延長することが推定される。   It is estimated that the section D1 is extended when the plunger rod portion 2 of the trip coil does not operate due to grease sticking, pin galling or the like. It is estimated that the section D2 is extended when the plunger rod portion 2 of the trip coil does not operate smoothly due to galling of a pin (not shown) or the like. It is estimated that the section D3 is extended when the plunger rod portion 2 of the trip coil operates but the operation of the link mechanism 3 becomes heavy due to grease sticking, pin galling or the like. The section D4 is extended when the plunger rod portion 2 of the trip coil is operated but the operation time of the link mechanism 3 is extended or the main circuit contact of the circuit breaker (a contact of the pallet switch) is delayed. It is estimated that It is estimated that the section D5 is extended when the main circuit contact of the circuit breaker is abnormal.

従って、引外しコイル電流波形の動作時間を区分した5つの区間D1〜D5は、グリス固着、ピンのこじれ、リンク機構3のこじれ等の要因によって延長することが推定される。そこで、引外しコイル電流波形の各区間D1〜D5をそれらの標準動作時間と比較することで、遮断器の引外し操作時の動作不具合の兆候を推定することができる。また、各区間D1〜D5単位の判定の他に、引外しコイル電流波形の動作時間(全区間D1〜D5)をその標準動作時間と比較することで、遮断器の引外し操作時の動作不具合の兆候を推定してもよい。   Accordingly, it is estimated that the five sections D1 to D5 that divide the operation time of the trip coil current waveform are extended due to factors such as grease sticking, pin twisting, and link mechanism 3 twisting. Therefore, by comparing each section D1 to D5 of the trip coil current waveform with their standard operation time, it is possible to estimate a sign of an operation failure during the trip operation of the circuit breaker. Moreover, in addition to the determination of each section D1 to D5 unit, the operation time of the tripping coil current waveform (all sections D1 to D5) is compared with the standard operation time, thereby causing an operation failure at the time of tripping the circuit breaker. May be estimated.

遮断器の投入操作時の場合も同様に、投入コイル電流波形の各区間D1〜D5をそれらの標準動作時間と比較することで、遮断器の投入操作時の動作の不具合の兆候を推定することができる。   Similarly, in the case of the circuit breaker closing operation, each section D1 to D5 of the closing coil current waveform is compared with their standard operation time to estimate signs of malfunctions during the circuit breaker closing operation. Can do.

<<<開閉器一括遠隔監視システムの構成>>>
図3は、本発明の一実施形態に係る開閉器一括遠隔監視システムの構成を示した図である。尚、図3には、複数の開閉器を含めた機器の一例として遮断器52のみが図示されている。
<<< Configuration of Switch Remote Monitoring System >>>
FIG. 3 is a diagram illustrating a configuration of a switch batch remote monitoring system according to an embodiment of the present invention. FIG. 3 shows only the circuit breaker 52 as an example of a device including a plurality of switches.

電気所は、電力系統を構成する電線路上に設けられる遮断器52の他に、直流電源装置10と、分電盤20、30と、遠隔監視制御装置(以下、遠制装置と呼ぶ。)40と、遮断器52と、自動復旧回路70と、保護継電器回路80と、開閉器一括監視装置100と、を有する。   In addition to the circuit breaker 52 provided on the electric line constituting the electric power system, the electric station includes a DC power supply device 10, distribution boards 20, 30 and a remote monitoring control device (hereinafter referred to as a distance control device) 40. A circuit breaker 52, an automatic recovery circuit 70, a protective relay circuit 80, and a switchgear collective monitoring device 100.

直流電源装置10は、複数の開閉器を含めた電気所の機器に対し、当該機器夫々を制御するための制御電流と、当該機器夫々を実際に操作するための操作電流と、を供給する直流電源である。つまり、直流電源装置10は、各機器に供給する制御電流を一括して生成する制御電源と、各機器に供給する操作電流を一括して生成する操作電源と、を具備している。尚、本実施の形態に限定されず、制御電源と操作電源は個別の直流電源装置に設けるようにしてもよい。   The DC power supply device 10 supplies a control current for controlling each of the devices and an operation current for actually operating each of the devices to an electrical station device including a plurality of switches. Power supply. That is, the DC power supply device 10 includes a control power source that collectively generates control currents to be supplied to each device, and an operation power source that collectively generates operation currents to be supplied to each device. Note that the present invention is not limited to this embodiment, and the control power supply and the operation power supply may be provided in separate DC power supplies.

開閉器の制御電流は、遮断器52の引外し操作時や投入操作時の各制御電流、具体的には、遮断器52の引外しコイル52Tに流れる引外しコイル電流および投入用制御用継電器52CXに流れる電流とする。また、開閉器の操作電流は、遮断器52の投入操作時の操作電流、具体的には、遮断器52の投入コイル52Cに流れる投入コイル電流とする。尚、投入操作時の方が、引外し操作時よりも多大な電流を必要とするため、本実施の形態では、投入コイル電流のみを操作電流として取り扱うことにしたが、引外しコイル電流を操作電流として取り扱うようにしてもよい。   The control current of the switch is the control current at the time of tripping operation or closing operation of the circuit breaker 52, specifically, the tripping coil current flowing in the tripping coil 52T of the circuit breaker 52 and the control relay for closing 52CX. The current flowing through The operating current of the switch is an operating current at the time of closing operation of the circuit breaker 52, specifically, a closing coil current flowing through the closing coil 52C of the circuit breaker 52. In this embodiment, only the closing coil current is treated as the operating current because the closing operation requires a larger amount of current than the tripping operation. You may make it handle as an electric current.

直流電源装置10は、給電母線11と、給電母線11の電源側に設けられ交流電源からの交流電流を直流電流に変換する整流器12と、整流器12と給電母線1とを接続する配線上に設けられる配線用遮断器MCCB1と、給電母線11の電源側に設けられ整流器12より出力される直流電流を充電する蓄電池13と、を有する。   The DC power supply device 10 is provided on a power supply bus 11, a rectifier 12 that is provided on the power supply side of the power supply bus 11 and converts an AC current from an AC power source into a DC current, and wiring that connects the rectifier 12 and the power supply bus 1. And a storage battery 13 that is provided on the power supply side of the power supply bus 11 and charges a direct current output from the rectifier 12.

さらに、直流電源装置10は、給電母線11の直流電源より分割された制御電源を分電盤20に向けて出力する制御電源出力端子14と、給電母線11と制御電源出力端子14との間の配線上に設けられ第1最大値の主幹電流I1を流すことが可能な配線用遮断器MCCB2と、給電母線11の直流電源より分割された操作電源を分電盤30に向けて出力する操作電源出力端子15と、予備として未使用である一又は複数の電源出力端子16と、給電母線11と操作電源端子15との間の配線上に設けられ第1最大値よりも大きい第2最大値の主幹電流I2を流すことが可能な配線用遮断器MCCB3と、を有する。つまり、配線用遮断器MCCB1は、主幹電流I1の第1最大値と主幹電流I2の第2最大値とを加算した値に対し更に予備分を加えた第3最大値の主幹電流を流すことが可能な定格容量のものを用いる。   Further, the DC power supply device 10 includes a control power supply output terminal 14 that outputs a control power supply divided from the DC power supply of the power supply bus 11 toward the distribution board 20, and a connection between the power supply bus 11 and the control power output terminal 14. The circuit breaker MCCB2 provided on the wiring and capable of flowing the main current I1 having the first maximum value, and the operation power source that outputs the operation power source divided from the DC power source of the power supply bus 11 toward the distribution board 30 A second maximum value larger than the first maximum value provided on the output terminal 15, one or a plurality of power supply output terminals 16 that are unused as spares, and the wiring between the power supply bus 11 and the operation power supply terminal 15. And a circuit breaker MCCB3 that can flow the main current I2. That is, the circuit breaker MCCB1 allows the main current of the third maximum value obtained by adding a preliminary amount to the value obtained by adding the first maximum value of the main current I1 and the second maximum value of the main current I2. Use the rated capacity possible.

直流電源装置10より制御電源出力端子14を介して分電盤20に供給される主幹電流I1の波形はクランプ式電流変成器CT1により測定される。また、直流電源装置10より操作電源出力端子15を介して分電盤300に供給される主幹電流I2の波形はクランプ式電流変成器CT2により測定される。なお、連系変電所等の大規模な電気所の場合、制御電源が分割されている。この場合、主幹電流I1の波形の測定精度を向上するために、制御電源単位にクランプ式電流変成器CT1を設けることが好ましい。   The waveform of the main current I1 supplied from the DC power supply 10 to the distribution board 20 via the control power supply output terminal 14 is measured by the clamp type current transformer CT1. The waveform of the main current I2 supplied from the DC power supply device 10 to the distribution board 300 via the operation power supply output terminal 15 is measured by the clamp type current transformer CT2. In the case of a large-scale electric station such as an interconnected substation, the control power source is divided. In this case, in order to improve the measurement accuracy of the waveform of the main current I1, it is preferable to provide a clamp type current transformer CT1 for each control power source.

分電盤20は、直流電源装置10の制御電源出力端子14を介して供給される制御電源を各機器に分配する受電設備である。分電盤20は、制御電源母線21と、直流電源装置10の制御電源出力端子14と接続されるとともに制御電源母線21と接続される制御電源入力端子22と、制御電源母線21より分配された複数の制御電源を各機器に出力する複数の制御電源出力端子23と、を有する。本実施形態の場合、複数の制御電源出力端子23と接続される各機器の一例として、遠制装置40、遮断器52の投入制御回路60及び引外し回路62等を例示している。   The distribution board 20 is a power receiving facility that distributes control power supplied via the control power output terminal 14 of the DC power supply device 10 to each device. Distribution board 20 is distributed from control power supply bus 21, control power supply output terminal 14 of DC power supply device 10, control power supply input terminal 22 connected to control power supply bus 21, and control power supply bus 21. And a plurality of control power supply output terminals 23 for outputting a plurality of control power supplies to each device. In the case of this embodiment, the distance control device 40, the closing control circuit 60 of the circuit breaker 52, the tripping circuit 62, and the like are illustrated as examples of devices connected to the plurality of control power output terminals 23.

分電盤30は、直流電源装置10の操作電源出力端子15を介して供給される操作電源を各機器に分配する受電設備である。分電盤30は、操作電源母線31と、直流電源装置10の操作電源出力端子15と接続されるとともに操作電源母線31と接続される操作電源入力端子32と、操作電源母線31より分配された複数の操作電源を各機器に出力する複数の操作電源出力端子33と、を有する。本実施形態の場合、複数の操作電源出力端子33と接続される各機器の一例として、遮断器52の投入回路64を例示している。   The distribution board 30 is a power receiving facility that distributes the operation power supplied through the operation power output terminal 15 of the DC power supply device 10 to each device. The distribution board 30 is distributed from the operation power supply bus 31, the operation power supply input terminal 32 connected to the operation power supply bus 31, the operation power supply bus 31, and the operation power supply bus 31. And a plurality of operation power output terminals 33 for outputting a plurality of operation power to each device. In the case of the present embodiment, a closing circuit 64 of the circuit breaker 52 is illustrated as an example of each device connected to the plurality of operation power output terminals 33.

遠制装置40は、通信網210を介して制御所に配置された遠隔監視制御装置200と通信可能に接続され、遠隔監視制御装置200の後述の親局201に対する子局として機能する。具体的には、遠制装置40は、遠隔監視制御装置200からの遮断器52を含めた複数の開閉器に向けた投入指令又は引外し指令を所定の伝送手順により受信して各指令に応じた信号を当該複数の開閉器に送信する機能と、開閉器監視装置100より出力される後述の状態信号S1及び動作時間信号S2を所定の伝送手順により遠隔監視制御装置200に送信する機能と、を有する。尚、所定の伝送手順としては、情報を定周期で送受信するCDT(Cyclic Data Transfer)方式、イベント情報が発生する度に送受信するHDLC(High level Data Link Control)方式等が採用される。   The remote control device 40 is communicably connected to the remote monitoring control device 200 disposed in the control station via the communication network 210, and functions as a slave station for the later-described parent station 201 of the remote monitoring control device 200. Specifically, the distance control device 40 receives a closing command or a trip command for a plurality of switches including the circuit breaker 52 from the remote monitoring control device 200 by a predetermined transmission procedure, and responds to each command. A function of transmitting the received signal to the plurality of switches, a function of transmitting a status signal S1 and an operation time signal S2 described later output from the switch monitoring device 100 to the remote monitoring control device 200 according to a predetermined transmission procedure, Have As a predetermined transmission procedure, a CDT (Cyclic Data Transfer) method for transmitting and receiving information at a fixed period, an HDLC (High Level Data Link Control) method for transmitting and receiving information whenever event information occurs, and the like are adopted.

遠制装置40は、分電盤20の複数の制御電源出力端子23の中の一つと接続される一の電源入力端子41と、遠隔監視制御装置200から受信した投入指令に基づいて複数の開閉器の中でいずれか一つの開閉器を投入する際に励磁される制御用継電器42と、遠隔監視制御装置200から受信した投入指令に基づいて複数の開閉器の中で投入操作を行う開閉器を選択する複数の選択用継電器43と、複数の選択用継電器43毎に対応づけられて設けられ選択用継電器43により選択された開閉器の投入制御回路60に向けて投入指令を出力する投入指令出力端子44と、を有する。尚、制御用継電器42及び複数の選択用継電器43は、対応する継電器が励磁された場合に連動して閉じる主接点及び補助接点を夫々有する。   The distance control device 40 has a power input terminal 41 connected to one of the plurality of control power output terminals 23 of the distribution board 20 and a plurality of opening / closing operations based on the input command received from the remote monitoring control device 200. A control relay 42 that is excited when any one of the switches is turned on, and a switch that performs a making operation among the plurality of switches based on the making command received from the remote monitoring control device 200. A plurality of selection relays 43 that select the switch, and a closing command that is provided in association with each of the plurality of selection relays 43 and that outputs a closing command to the switching control circuit 60 of the switch selected by the selection relay 43 And an output terminal 44. The control relay 42 and the plurality of selection relays 43 each have a main contact and an auxiliary contact that close together when a corresponding relay is excited.

さらに、遠制装置40は、遠隔監視制御装置200から受信した引外し指令に基づいて複数の開閉器の中でいずれか一つの開閉器を遮断する際に励磁される制御用継電器45と、遠隔監視制御装置200から受信した引外し指令に基づいて複数の開閉器の中で引外し操作を行う開閉器を選択する複数の選択用継電器46と、複数の選択用継電器46毎に対応づけられて設けられ選択用継電器46により選択された開閉器の引外し回路62に向けて引外し指令を出力する引外し指令出力端子47と、を有する。尚、制御用継電器45及び複数の選択用継電器46は、対応する継電器が励磁された場合に連動して閉じる主接点及び補助接点を夫々有する。   Further, the distance control device 40 includes a control relay 45 that is excited when one of the plurality of switches is cut off based on the trip command received from the remote monitoring control device 200, A plurality of selection relays 46 for selecting a switch for performing a trip operation among a plurality of switches based on a trip command received from the monitoring control device 200, and a plurality of selection relays 46 are associated with each other. A trip command output terminal 47 that outputs a trip command toward the trip circuit 62 of the switch that is provided and selected by the selection relay 46; The control relay 45 and the plurality of selection relays 46 each have a main contact and an auxiliary contact that close together when the corresponding relay is excited.

遮断器52は、高圧・特別高圧向けの電線路(送電線又は配電線)に流れる電流の開閉を行う開閉器であり、真空遮断器、ガス遮断器、空気遮断器、磁気遮断器等の種類がある。遮断器52は、絶縁ケース内に可動接触子と固定接触子とを具備する遮断部(不図示)と、投入制御回路60と、引外し回路62と、投入回路64と、投入コイル52C又は引外しコイル52Tの駆動力を伝達するリンク機構(不図示)と、当該リンク機構より伝達された駆動力を絶縁操作ロッド等を介して遮断部の可動接触子に伝える駆動機構(不図示)と、を有する。尚、上記のリンク機構や駆動機構は、例えば、特開2005−168121号公報の図2等に示されている。   The circuit breaker 52 is a switch that opens and closes a current flowing in a high-voltage / extra-high-voltage electric line (transmission line or distribution line). Types of vacuum circuit breaker, gas circuit breaker, air circuit breaker, magnetic circuit breaker, etc. There is. The breaker 52 includes a breaker (not shown) having a movable contact and a fixed contact in an insulating case, a closing control circuit 60, a tripping circuit 62, a closing circuit 64, and a closing coil 52C or a pulling circuit. A link mechanism (not shown) that transmits the driving force of the release coil 52T, a drive mechanism (not shown) that transmits the driving force transmitted from the link mechanism to the movable contactor of the blocking portion via an insulating operation rod, etc. Have The link mechanism and the drive mechanism described above are shown in, for example, FIG. 2 of Japanese Patent Application Laid-Open No. 2005-168121.

以下、投入制御回路60、引外し回路62、投入回路64について詳述する。投入制御回路60及び引外し回路62は分電盤20の制御電源により動作し、投入回路64は分電盤30の操作電源により動作する。このため、遮断器52は、電源系統として2系統有する。   Hereinafter, the closing control circuit 60, the trip circuit 62, and the closing circuit 64 will be described in detail. The closing control circuit 60 and the tripping circuit 62 are operated by the control power supply of the distribution board 20, and the closing circuit 64 is operated by the operation power supply of the distribution board 30. For this reason, the circuit breaker 52 has two systems as a power supply system.

投入制御回路60は、分電盤20の制御電源出力端子23と接続された制御電源の正側制御電源線P1と負側制御電源線N1との間に、手動操作型の投入スイッチ3−52F「入」と、投入用制御用継電器52CXと、反復防止用継電器52CZの補助接点52CZ(b接点)と、を直列に接続し、投入用制御用継電器52CX及び補助接点52CZ(b接点)と並列に反復防止用継電器52CZ及び補助接点52CZ(a接点)を設け、補助接点52CZ(a接点)と並列に引外しコイル52TのリミットスイッチLS(a接点)を設けて構成される。尚、投入スイッチ3−52F「入」は、断路端子コネクタを介して遮断器52の外付けとされる。投入スイッチ3−52F「入」と断路端子コネクタとの間には、遠制装置40の複数の投入指令出力端子44の中で対応する端子と接続されるとともに、自動復旧回路80の出力側と接続される。   The closing control circuit 60 is a manually operated closing switch 3-52F between the positive control power line P1 and the negative control power line N1 of the control power source connected to the control power output terminal 23 of the distribution board 20. “ON”, the closing control relay 52CX and the auxiliary contact 52CZ (b contact) of the repeat prevention relay 52CZ are connected in series, and in parallel with the closing control relay 52CX and the auxiliary contact 52CZ (b contact). Is provided with a repeat prevention relay 52CZ and an auxiliary contact 52CZ (a contact), and a trip switch 52T limit switch LS (a contact) in parallel with the auxiliary contact 52CZ (a contact). The closing switch 3-52F “ON” is externally attached to the circuit breaker 52 via a disconnect terminal connector. Between the input switch 3-52F “ON” and the disconnect terminal connector, a corresponding terminal among the plurality of input command output terminals 44 of the distance control device 40 is connected, and the output side of the automatic recovery circuit 80 Connected.

引外し回路62は、分電盤20の複数の制御電源出力端子23の中の一つと接続された制御電源の正側制御電源線P1と負側制御電源線N1との間に、手動操作型の引外しスイッチ3−52F「切」と、引外しコイル52Tと、引外しコイル52TのリミットスイッチLS(a接点)と、を直列に接続して構成される。尚、引外しスイッチ3−52F「切」は、断路端子コネクタを介して遮断器52の外付けとされる。引外しスイッチ3−52F「切」と断路端子コネクタとの間には、遠制装置40の複数の引外し指令出力端子47の中で対応する端子と接続されるとともに、保護継電器回路70の出力側と接続される。   The trip circuit 62 is manually operated between the positive control power line P1 and the negative control power line N1 of the control power supply connected to one of the plurality of control power output terminals 23 of the distribution board 20. Trip switch 3-52F “off”, trip coil 52T, and limit switch LS (a contact) of trip coil 52T are connected in series. The trip switch 3-52F “off” is externally attached to the circuit breaker 52 via a disconnect terminal connector. Between the trip switch 3-52F “off” and the disconnect terminal connector, a corresponding terminal among the plurality of trip command output terminals 47 of the distance control device 40 is connected and the output of the protective relay circuit 70 is connected. Connected with the side.

投入回路64は、分電盤30の複数の操作電源出力端子33の中の一つと接続された操作電源の正側操作電源線P0と負側操作電源線N0との間に、投入用制御用継電器52CXの補助接点52CX(a接点)と、投入コイル52Cと、を直列に接続して構成される。   The input circuit 64 is for control for input between the positive operating power line P0 and the negative operating power line N0 of the operating power connected to one of the plurality of operating power output terminals 33 of the distribution board 30. The auxiliary contact 52CX (a contact) of the relay 52CX and the closing coil 52C are connected in series.

保護継電器回路70は、引外しスイッチ3−52F「切」と並列に設けられ、分電盤20の複数の制御電源出力端子23の中の一つと接続された制御電源(正側制御電源線P1)により動作する。保護継電器回路70は、地絡事故や短絡事故を検出した場合、引外しスイッチ3−52F「切」の手動操作よりも優先して、遮断器52の引外し回路62の引外しコイル52Tを励磁させる。   The protective relay circuit 70 is provided in parallel with the trip switch 3-52F “OFF”, and is connected to one of the plurality of control power output terminals 23 of the distribution board 20 (positive control power line P1). ). The protective relay circuit 70 excites the tripping coil 52T of the tripping circuit 62 of the circuit breaker 52 in preference to the manual operation of the tripping switch 3-52F “off” when a ground fault or a short-circuiting fault is detected. Let

自動復旧回路80は、投入スイッチ3−52F「入」と並列に設けられ、分電盤20の複数の制御電源出力端子23の中の一つと接続された制御電源(正側制御電源線P1)により動作する。自動復旧回路80は、地絡事故や短絡事故を検出した場合、投入スイッチ3−52F「入」の手動操作よりも優先して、遮断器52の投入制御回路60の投入用制御用継電器52CXを励磁させる。   The automatic recovery circuit 80 is provided in parallel with the ON switch 3-52F “ON”, and is connected to one of the plurality of control power output terminals 23 of the distribution board 20 (positive control power line P1). It works by. When the automatic restoration circuit 80 detects a ground fault or a short-circuit accident, the automatic restoration circuit 80 prioritizes manual operation of the on switch 3-52F “on” and sets the on-off control relay 52CX of the on-off control circuit 60 of the circuit breaker 52. Energize.

遠隔監視制御装置200は、図4に示される構成を有する。即ち、遠隔監視制御装置200は、親局201、メモリ202、データベース203、CPU204、入力装置205、表示装置206、ログ出力装置207を夫々バス208を介して通信可能に接続して構成される。尚、本願請求項に記載のログ出力部は、ログ出力装置207に対応する。   The remote monitoring control device 200 has the configuration shown in FIG. That is, the remote monitoring control device 200 is configured by connecting a master station 201, a memory 202, a database 203, a CPU 204, an input device 205, a display device 206, and a log output device 207 via a bus 208 so that they can communicate with each other. Note that the log output unit described in the claims corresponds to the log output device 207.

親局201は、電気所の遠制装置40と通信可能に接続される遠制装置である。メモリ202は、CPU204より実行されるプログラムや作業データを格納する。データベース203は、電気所に配置された複数の開閉器の情報を格納する。CPU204は、メモリ202に格納されたプログラムを実行することで、遠隔監視制御装置200全体の制御を統括するプロセッサである。入力装置205は、キーボード、マウス、タッチパネル等である。表示装置206は、液晶ディスプレイやプラズマディスプレイ等であり、電気所の電力系統図や電気所に配置された複数の開閉器の動作監視の結果等の各種表示を行う。ログ出力装置207は、電気所に配置された複数の開閉器の動作監視の結果のログ(後述の開閉器の操作ログ、動作時間ログ、異常ログを含む。)を出力する。ログ出力装置207より出力されたログは、ログ出力装置207内に格納されるようにしてもよいし、データベース203等に格納されるようにしてもよい。また、データベース203等に格納されたログは、表示装置206に表示することができる。   The master station 201 is a distance control device that is communicably connected to the distance control device 40 of the electric station. The memory 202 stores programs executed by the CPU 204 and work data. The database 203 stores information on a plurality of switches arranged at the electric station. The CPU 204 is a processor that controls the entire remote monitoring control device 200 by executing a program stored in the memory 202. The input device 205 is a keyboard, a mouse, a touch panel, or the like. The display device 206 is a liquid crystal display, a plasma display, or the like, and performs various displays such as a power system diagram of an electric station and a result of operation monitoring of a plurality of switches arranged in the electric station. The log output device 207 outputs a log (including a switch operation log, an operation time log, and an abnormality log, which will be described later) as a result of operation monitoring of a plurality of switches arranged at an electric station. The log output from the log output device 207 may be stored in the log output device 207, or may be stored in the database 203 or the like. In addition, the log stored in the database 203 or the like can be displayed on the display device 206.

開閉器一括監視装置100は、電気所に配置された複数の開閉器の動作を一括監視する装置である。開閉器一括監視装置100は、図5に示される構成を有する。即ち、開閉器一括監視装置100は、ADC(AD変換器)101、メモリ102、データベース103、CPU104、入力装置105、表示装置106を夫々バス108を介して通信可能に接続して構成される。尚、本願請求項に記載の波形記録部はデータベース103に対応し、本願請求項に記載の動作時間検出部はCPU104に対応する。   The switchgear collective monitoring device 100 is a device that collectively monitors the operations of a plurality of switches arranged in an electric station. The switch collective monitoring apparatus 100 has a configuration shown in FIG. In other words, the switchgear batch monitoring device 100 is configured by connecting an ADC (AD converter) 101, a memory 102, a database 103, a CPU 104, an input device 105, and a display device 106 via a bus 108 so that they can communicate with each other. The waveform recording unit described in the claims of the present application corresponds to the database 103, and the operation time detection unit described in the claims of the present application corresponds to the CPU 104.

ADC101は、クランプ式電流変成器CT1により測定される主幹電流I1の波形と、クランプ式電流変成器CT2により測定される主幹電流I2の波形と、遠制装置40の制御用継電器42、45の各補助接点の開閉状態を表した接点信号S0と、を、所定のサンプリング周期で所定のバッファメモリ(リングバッファ等)にサンプリングする。メモリ102は、CPU104より実行されるプログラムや作業データを格納する。データベース103は、複数の開閉器の動作波形(制御電流波形、操作電流波形)を記録保存する。CPU104は、メモリ202に格納されたプログラムを実行することにより、開閉器一括監視装置100全体の制御を統括するプロセッサである。入力装置105は、キーボード、マウス、タッチパネル等である。表示装置106は、液晶ディスプレイやプラズマディスプレイ等であり、電気所に配置された複数の開閉器の動作監視の結果等の各種表示を行う。   The ADC 101 includes a waveform of the main current I1 measured by the clamp type current transformer CT1, a waveform of the main current I2 measured by the clamp type current transformer CT2, and each of the control relays 42 and 45 of the distance control device 40. The contact signal S0 indicating the open / closed state of the auxiliary contact is sampled in a predetermined buffer memory (ring buffer or the like) at a predetermined sampling period. The memory 102 stores programs executed by the CPU 104 and work data. The database 103 records and saves operation waveforms (control current waveform, operation current waveform) of a plurality of switches. The CPU 104 is a processor that controls the entire switch batch monitoring apparatus 100 by executing a program stored in the memory 202. The input device 105 is a keyboard, a mouse, a touch panel, or the like. The display device 106 is a liquid crystal display, a plasma display, or the like, and performs various displays such as results of operation monitoring of a plurality of switches arranged in an electric station.

<<<遮断器52の操作時の主な流れ>>>
以下、遮断器52の引外し操作時及び投入操作時の主な流れを説明する。
遮断器52の引外し回路62による引外し操作時の流れは次のとおりである。制御所の遠隔監視制御装置200より遠制装置40に送信される引外し指令、引外しスイッチ3−52F「切」の手動操作による引外し指令又は保護継電器回路70から出力される引外し指令により、投入時にリミットスイッチLS(a接点)は閉じていることから、引外しコイル電流52Tに引外しコイル電流(制御電流)が流れて励磁される。尚、この引外しコイル電流はクランプ式電流変成器CT1により検出される。引外しコイル52Tが励磁されたとき、引外しコイル52T内に設けられるプランジャーロッド部2が押し出され、プランジャーロッド部2の先端が接触する引外しフックがリンク機構(コロ等)との係合を解除する方向に回転する。これにより、遮断バネや圧接バネの力によって駆動機構が動作し、遮断部の可動接触子と固定接触子とを引き外す。
<<< Main flow during operation of circuit breaker 52 >>>
Hereinafter, main flows at the time of tripping operation and closing operation of the circuit breaker 52 will be described.
The flow at the time of the trip operation by the trip circuit 62 of the circuit breaker 52 is as follows. By a trip command transmitted from the remote monitoring and control device 200 of the control station to the distance control device 40, a trip command by manual operation of the trip switch 3-52F “off”, or a trip command output from the protective relay circuit 70 Since the limit switch LS (a contact) is closed at the time of turning on, the trip coil current (control current) flows through the trip coil current 52T and is excited. The trip coil current is detected by a clamp type current transformer CT1. When the trip coil 52T is excited, the plunger rod 2 provided in the trip coil 52T is pushed out, and the trip hook with which the tip of the plunger rod 2 comes into contact with the link mechanism (roller or the like). Rotate in the direction to cancel the match. As a result, the drive mechanism is operated by the force of the cutoff spring or the pressure spring, and the movable contact and the fixed contact of the cutoff portion are pulled off.

遮断器52の投入制御回路60及び投入回路64による投入操作時の流れは次のとおりである。制御所の遠隔監視制御装置200より遠制装置40に送信される投入指令、投入スイッチ3−52F「入」の手動操作による投入指令又は自動復旧回路80から出力される投入指令により、反復防止用継電器52CZの補助接点52CZ(b接点)が閉じていることから、投入用制御用継電器52CXに投入制御電流(制御電流)が流れて励磁される。尚、この投入制御電流はクランプ式電流変成器CT1により検出される。   The flow during the closing operation by the closing control circuit 60 and the closing circuit 64 of the circuit breaker 52 is as follows. By using a closing command transmitted from the remote monitoring control device 200 of the control station to the distance control device 40, a closing command by manually operating the closing switch 3-52F “ON”, or a closing command output from the automatic recovery circuit 80 Since the auxiliary contact 52CZ (b contact) of the relay 52CZ is closed, a closing control current (control current) flows through the closing control relay 52CX and is excited. This closing control current is detected by a clamp type current transformer CT1.

投入用制御用継電器52CXの励磁により補助接点52CXが閉じ、投入コイル52Cに投入操作電流(操作電流)が流れて励磁される。尚、この投入操作電流はクランプ式電流変成器CT2により検出される。投入コイル52Cを励磁すると可動鉄心と一体に固定された操作ロッドが押し出され、操作ロッドの先端と接触するリンク機構を介して駆動機構が動作し、遮断部の可動接触子を固定接触子に接触させる。   The auxiliary contact 52CX is closed by excitation of the closing control relay 52CX, and a closing operation current (operation current) flows through the closing coil 52C to be excited. This closing operation current is detected by a clamp type current transformer CT2. When the closing coil 52C is excited, the operating rod fixed integrally with the movable iron core is pushed out, the drive mechanism is operated via the link mechanism that comes into contact with the tip of the operating rod, and the movable contactor of the blocking portion contacts the fixed contactor. Let

尚、遮断器52の投入操作完了によりリミットスイッチLS(a接点)が閉じるため、反復防止用継電器52CZが励磁されて、補助接点52CZが開く。以降、反復防止用継電器52CZの励磁が自己保持され、連続した遮断器52の投入指令に対する投入反復操作を防止する。   Since the limit switch LS (a contact) is closed when the closing operation of the circuit breaker 52 is completed, the repeat prevention relay 52CZ is excited and the auxiliary contact 52CZ is opened. Thereafter, the excitation of the repeat prevention relay 52CZ is self-maintained to prevent the repeated repetitive operation in response to the continuous breaker 52 turn-on command.

<<<遮断器52の制御電流波形及び操作電流波形判定フロー>>>
以下、図6に示すフローチャートを用いて、開閉器一括監視装置100による遮断器52の制御電流波形及び操作電流波形の判定フローを説明する。尚、以下では特に断らない限り、本フローの動作主体は、メモリ102に格納されたプログラムに従って動作するCPU104である。
<<< Control Current Waveform and Operation Current Waveform Determination Flow of Circuit Breaker 52 >>>
Hereinafter, the determination flow of the control current waveform and the operation current waveform of the circuit breaker 52 by the switch batch monitoring apparatus 100 will be described using the flowchart shown in FIG. In the following description, unless otherwise specified, the operating subject of this flow is the CPU 104 that operates according to a program stored in the memory 102.

開閉器一括監視装置100は、直流電源装置10の配線用遮断器MCCB2に流れる主幹電流I1の波形をクランプ式電流変成器CT1を介して常時ADC101のバッファメモリにサンプリングするとともに、直流電源装置10の配線用遮断器MCCB3に流れる主幹電流I2の波形をクランプ式電流変成器CT2を介して常時ADC101のバッファメモリにサンプリングする(S600)。   The switch collective monitoring device 100 constantly samples the waveform of the main current I1 flowing in the circuit breaker MCCB2 of the DC power supply device 10 in the buffer memory of the ADC 101 via the clamp-type current transformer CT1, and The waveform of the main current I2 flowing through the wiring breaker MCCB3 is always sampled in the buffer memory of the ADC 101 via the clamp-type current transformer CT2 (S600).

開閉器一括監視装置100は、ADC101によりサンプリングされた主幹電流I1及び主幹電流I2の波形の電流変化率(複数サンプリングデータの移動平均)を監視しており、少なくともいずれか一方の電流変化率が急変するか(所定の変化率以上となるか)否かを判定する(S601)。ADC101によりサンプリングされた主幹電流I1及び主幹電流I2の波形の少なくともいずれか一方の電流変化率が急変した場合(S601:YES)、制御電流及び操作電流が流れる時間よりも余裕を持たせた所定時間分の主幹電流I1及び主幹電流I2の波形をデータベース103に記録保存する(S602)。尚、短時間記録のためにトリガがかからない虞があるため、電流変化率が急変する前の主幹電流I1及び主幹電流I2の波形を記録することができるプリトリガ機能を有した記録を採用することが好ましい。   The switchgear monitoring apparatus 100 monitors the current change rate (moving average of a plurality of sampling data) of the waveforms of the main current I1 and the main current I2 sampled by the ADC 101, and at least one of the current change rates changes suddenly. It is determined whether or not (whether the change rate is equal to or higher than a predetermined rate) (S601). When the current change rate of at least one of the waveforms of the main current I1 and the main current I2 sampled by the ADC 101 changes abruptly (S601: YES), a predetermined time with a margin longer than the time during which the control current and the operation current flow Minute main current I1 and main current I2 waveforms are recorded and stored in the database 103 (S602). In addition, since there is a possibility that a trigger is not applied for a short time recording, it is possible to employ a recording having a pre-trigger function capable of recording the waveforms of the main current I1 and the main current I2 before the current change rate suddenly changes. preferable.

つぎに、開閉器一括監視装置100は、データベース103に記録保存された主幹電流I1の波形のサンプリングデータ(ADC101のバッファメモリに格納)に基づいて、主幹電流I1の波形より定常電流を差し引いた第1相対電流波形が、制御電流として規定された規定電流量以上であるか否かを判定する(S603)。例えば、引外し操作時の制御電流(引外しコイル電流)の規定電流量は1A以上と規定されており、1A未満の規定外のデータを排除するためである。第1相対電流波形が制御電流として規定された規定電流量未満の場合(S603:NO)、主幹電流I2の波形のサンプリングデータに基づいて、主幹電流I2の波形より定常電流を差し引いた第2相対電流波形が、操作電流として規定された規定電流量(例えば、2A〜5A)以上であるか否かを判定する(S608)。第2相対電流波形が操作電流の規定電流量以上である場合(S608:YES)にはS609に進み、第2相対電流波形が操作電流の規定電流量未満である場合(S608:NO)には主幹電流I1及び主幹電流I2の波形のサンプリングデータをADC101のバッファメモリより消去してS600に戻る。   Next, the switchgear collective monitoring apparatus 100 is configured to subtract the steady current from the waveform of the main current I1 based on the sampling data (stored in the buffer memory of the ADC 101) of the main current I1 waveform recorded and stored in the database 103. It is determined whether or not one relative current waveform is greater than or equal to a specified current amount specified as a control current (S603). For example, the specified current amount of the control current (tripping coil current) at the time of the trip operation is defined as 1 A or more, and data other than the specified value less than 1 A is excluded. When the first relative current waveform is less than the specified current amount specified as the control current (S603: NO), the second relative value obtained by subtracting the steady current from the waveform of the main current I2 based on the sampling data of the main current I2 waveform. It is determined whether or not the current waveform is greater than or equal to a specified current amount (for example, 2A to 5A) specified as the operation current (S608). When the second relative current waveform is equal to or greater than the specified current amount of the operating current (S608: YES), the process proceeds to S609, and when the second relative current waveform is less than the specified current amount of the operating current (S608: NO). The sampling data of the main current I1 and main current I2 waveforms are erased from the buffer memory of the ADC 101, and the process returns to S600.

つぎに、開閉器一括監視装置100は、主幹電流I1の波形のサンプリングデータに基づいて、第1相対電流波形の急増時間(制御電流の規定電流量以上を継続する時間)が制御電流として規定された規定時間(例えば、1S)未満であるか否かを判定する(S604)。第1相対電流波形の急増時間が規定時間以上であれば(S604:NO)、遮断器52の制御電流波形でないと判定され、主幹電流I1及び主幹電流I2の波形のサンプリングデータをADC101のバッファメモリより消去してS600に戻る。主幹電流I1より定常電流を差し引いた第1相対電流波形の急増時間が規定時間未満であれば(S604:YES)、S605に進む。   Next, the switchgear batch monitoring apparatus 100 defines the rapid increase time of the first relative current waveform (the time during which the control current exceeds the specified current amount) as the control current based on the sampling data of the waveform of the main current I1. It is determined whether it is less than a specified time (for example, 1S) (S604). If the rapid increase time of the first relative current waveform is equal to or longer than the specified time (S604: NO), it is determined that it is not the control current waveform of the circuit breaker 52, and sampling data of the main current I1 and main current I2 waveforms is stored in the buffer memory of the ADC 101. Delete more and return to S600. If the rapid increase time of the first relative current waveform obtained by subtracting the steady current from the main current I1 is less than the specified time (S604: YES), the process proceeds to S605.

つぎに、開閉器一括監視装置100は、主幹電流I1の波形のサンプリングデータに基づいて、主幹電流I1の波形より定常電流を差し引いた第1相対電流波形が所定の時定数(L/R)で上昇しているか否かを判定する(S605)。所定の時定数で上昇していない場合(S605:NO)、遮断器52の制御電流波形でないと判定され、主幹電流I1及び主幹電流I2の波形のサンプリングデータをADC101のバッファメモリより消去してS600に戻る。所定の時定数で上昇する場合(S605:YES)、S606に進む。   Next, the switch overall monitoring apparatus 100 has a predetermined time constant (L / R) based on the sampling data of the waveform of the main current I1 and the first relative current waveform obtained by subtracting the steady current from the main current I1 waveform. It is determined whether or not it has risen (S605). If the current does not increase at the predetermined time constant (S605: NO), it is determined that the current waveform is not the control current waveform of the circuit breaker 52, and the sampling data of the main current I1 and main current I2 waveforms are erased from the buffer memory of the ADC 101 and S600 Return to. When it rises with a predetermined time constant (S605: YES), the process proceeds to S606.

つぎに、開閉器一括監視装置100は、主幹電流I1の波形のサンプリングデータに基づいて、主幹電流I1の波形より定常電流を差し引いた第1相対電流波形の電流上昇率が一旦急変するか否かを判定する(S606)。電流上昇率が急変しない場合(S606:NO)、遮断器52の制御電流波形でないと判定され、主幹電流I1及び主幹電流I2の波形のサンプリングデータをADC101のバッファメモリより消去してS600に戻る。電流上昇率が急変する場合(S606:YES)、S607に進む。   Next, the switch batch monitoring apparatus 100 determines whether or not the current increase rate of the first relative current waveform obtained by subtracting the steady current from the waveform of the main current I1 changes suddenly once based on the sampling data of the main current I1 waveform. Is determined (S606). If the current increase rate does not change abruptly (S606: NO), it is determined that it is not the control current waveform of the circuit breaker 52, the sampling data of the main current I1 and main current I2 waveforms are erased from the buffer memory of the ADC 101, and the process returns to S600. When the current increase rate changes suddenly (S606: YES), the process proceeds to S607.

つぎに、開閉器一括監視装置100は、主幹電流I1の波形のサンプリングデータに基づいて、主幹電流I1の波形より定常電流を差し引いた第1相対電流波形が所定の時定数で上昇した後に急減(所定の減少率で減少)するか否かを判定する(S607)。急減しない場合(S607:NO)、遮断器52の制御電流波形でないと判定され、主幹電流I1及び主幹電流I2の波形のサンプリングデータをADC101のバッファメモリより消去してS600に戻る。急減する場合(S607:YES)、S609に進む。   Next, the switchgear monitoring apparatus 100 rapidly decreases after the first relative current waveform obtained by subtracting the steady current from the waveform of the main current I1 rises with a predetermined time constant based on the sampling data of the main current I1 waveform ( It is determined whether or not to decrease at a predetermined decrease rate (S607). When it does not decrease rapidly (S607: NO), it is determined that the control current waveform is not the circuit breaker 52, and the sampling data of the waveforms of the main current I1 and main current I2 are erased from the buffer memory of the ADC 101, and the process returns to S600. When it decreases rapidly (S607: YES), the process proceeds to S609.

つぎに、開閉器一括監視装置100は、配線用遮断器MCCB2の開閉状況に基づいて、突入電流(電気機器に電源を投入したときに、一時的に流れる大電流)が発生したか否かを判定する(S609)。突入電流が発生した場合(S609:NO)、開閉器一括監視装置100は、主幹電流I1及び主幹電流I2の波形のサンプリングデータをADC101のバッファメモリより消去してS600に戻る。   Next, the switchgear collective monitoring device 100 determines whether or not an inrush current (a large current that flows temporarily when the electric device is turned on) is generated based on the switching state of the circuit breaker MCCB2. Determination is made (S609). If an inrush current has occurred (S609: NO), the switchgear monitoring apparatus 100 erases the sampling data of the main current I1 and main current I2 waveforms from the buffer memory of the ADC 101, and returns to S600.

突入電流が発生しなかった場合(S609:YES)、開閉器一括監視装置100は、主幹電流I1及び主幹電流I2の波形のサンプリングデータ、つまり制御電流波形及び操作電流波形をデータベース103に記録保存する(S610)。そして、開閉器一括監視装置100は、遠制装置40を介して遠隔監視制御装置200に向けて、制御電流波形及び操作電流波形の記録保存が完了したことを示す状態信号S1、記録保存した制御電流波形より検出される遮断器52の動作時間を示す動作時間信号S2を送信する(S611)。   When the inrush current has not occurred (S609: YES), the switchgear monitoring apparatus 100 records and saves the sampling data of the main current I1 and main current I2 waveforms, that is, the control current waveform and the operation current waveform, in the database 103. (S610). Then, the switch collective monitoring device 100 sends a status signal S1 indicating that recording and storage of the control current waveform and the operation current waveform is completed to the remote monitoring control device 200 via the distance control device 40, and the recorded and stored control. An operation time signal S2 indicating the operation time of the circuit breaker 52 detected from the current waveform is transmitted (S611).

ところで、図6のS601に示した主幹電流I1及び主幹電流I2の波形のサンプリングデータの記録を行うための判定を、制御用継電器42、45の各補助接点の開閉状態を表した接点信号S0に基づいて行ってもよい。具体的には、遠制装置40は、遠隔監視制御装置200より操作対象の開閉器が選択される場合、開閉器単位に設置される選択用継電器43、46が動作し、遠隔監視制御装置200より開閉器操作が行われる場合、各開閉器共通の制御用継電器42、45が動作して、選択用継電器43、46により選択された開閉器に操作指令が出力される仕組みとなっている。また、開閉器一括監視装置100は、上記のとおり、制御用継電器42、45の各補助接点の開閉状態を表した接点信号S0を取得している。そこで、開閉器一括監視装置100は、主幹電流I1及び主幹電流I2の波形のサンプリングデータの記録を行うための条件として、制御用継電器42、45の補助接点の接点信号S0に基づいて制御用継電器42、45が動作したことをトリガ条件としてもよい。   By the way, the determination for recording the sampling data of the waveforms of the main current I1 and the main current I2 shown in S601 of FIG. 6 is made to the contact signal S0 representing the open / closed state of each auxiliary contact of the control relays 42 and 45. May be based on. Specifically, in the distance control device 40, when a switch to be operated is selected from the remote monitoring control device 200, the selection relays 43 and 46 installed in units of the switches operate, and the remote monitoring control device 200 is operated. When a switch operation is further performed, the control relays 42 and 45 common to the respective switches operate, and an operation command is output to the switch selected by the selection relays 43 and 46. Further, as described above, the switchgear collective monitoring device 100 acquires the contact signal S0 representing the open / closed state of each auxiliary contact of the control relays 42 and 45. Therefore, the switch batch monitoring apparatus 100 uses the control relay based on the contact signal S0 of the auxiliary contacts of the control relays 42 and 45 as a condition for recording the sampling data of the waveforms of the main current I1 and the main current I2. The trigger condition may be that 42 and 45 are operated.

<<<遮断器52の動作監視フロー>>>
図7は、制御所の遠隔監視制御装置200による遮断器52の動作監視フローを示すフローチャートである。尚、以下のフローの説明において、特に断らない限り、制御所側では遠隔監視制御装置200のCPU204が動作主体となり、電気所側では開閉器一括監視装置100のCPU104が動作主体となる
遠隔監視制御装置200は、通信網210を介して電気所の遠制装置40に遮断器52の投入又は引外し操作指令を送信する。このとき、遠隔監視制御装置200のログ出力装置207は、遮断器52の操作ログを出力する(S700)。操作ログとは、操作日時、操作内容、操作対象機器等を対応づけた操作の履歴情報のことである。
<<< Operation Monitoring Flow of Circuit Breaker 52 >>>
FIG. 7 is a flowchart showing an operation monitoring flow of the circuit breaker 52 by the remote monitoring control device 200 of the control station. In the following description of the flow, unless otherwise specified, the CPU 204 of the remote monitoring and control device 200 is the operating subject on the control station side, and the CPU 104 of the switchgear batch monitoring device 100 is the operating subject on the electrical station side. The device 200 transmits an operation command for turning on or off the circuit breaker 52 to the distance control device 40 of the electric station via the communication network 210. At this time, the log output device 207 of the remote monitoring control device 200 outputs an operation log of the circuit breaker 52 (S700). The operation log is operation history information in which operation date / time, operation content, operation target device, and the like are associated.

遠制装置40は、遠隔監視制御装置200より受信した投入又は引外し操作指令に基づき、制御用継電器42又は45及び選択用継電器43又は46を動作させる。例えば、投入操作指令の場合、投入用の制御用継電器42が励磁され、投入操作対象の開閉器に対応した選択用継電器43が励磁される。これにより、遮断器52の投入操作が開始される(S701)。また、引外し操作指令の場合、引外し用の制御用継電器45が励磁され、引外し操作対象の開閉器に対応した選択用継電器46が励磁される。これにより、遮断器52の引外し操作が開始される(S701)。   The distance control device 40 operates the control relay 42 or 45 and the selection relay 43 or 46 based on the input or trip operation command received from the remote monitoring control device 200. For example, in the case of the making operation command, the making control relay 42 is excited, and the selecting relay 43 corresponding to the making operation target switch is excited. Thereby, the closing operation of the circuit breaker 52 is started (S701). In the case of a trip operation command, the trip control relay 45 is excited, and the selection relay 46 corresponding to the tripping operation target switch is excited. Thereby, the trip operation of the circuit breaker 52 is started (S701).

開閉器一括監視装置100は、遮断器52が動作したことに伴い、主幹電流I1及び主幹電流I2の波形の急変を検出する。そして、開閉器一括監視装置100は、図6に示したフローチャートに従い、所定時間分の制御電流及び操作電流の波形のサンプリングデータをデータベース103に記録保存する(S702)。その後、開閉器一括監視装置100は、遠制装置40を介して遠隔監視制御装置200に状態信号S1及び動作時間信号S2を送信する(S703)。   The switchgear collective monitoring device 100 detects a sudden change in the waveforms of the main current I1 and the main current I2 as the circuit breaker 52 operates. Then, according to the flowchart shown in FIG. 6, the switchgear batch monitoring apparatus 100 records and saves the sampling data of the control current and operation current waveforms for a predetermined time in the database 103 (S702). Thereafter, the switchgear collective monitoring device 100 transmits the status signal S1 and the operation time signal S2 to the remote monitoring control device 200 via the distance control device 40 (S703).

遠隔監視制御装置200は、遮断器52の操作指令を送信した後、遠制装置40から状態信号S1及び動作時間信号S2が送られてくるか否かを監視している(S704)。遠隔監視制御装置200は、遮断器52の操作指令を送信した後に遠制装置40から状態信号S1を受信できなかった場合(S704:NO)、開閉器一括監視装置100より制御電流波形又は操作電流波形が特定できなかったこと、つまり遮断器52の操作が正常に行われなかったことを識別する。   The remote monitoring control device 200 monitors whether or not the status signal S1 and the operation time signal S2 are sent from the distance control device 40 after transmitting the operation command for the circuit breaker 52 (S704). When the remote monitoring control device 200 cannot receive the status signal S1 from the distance control device 40 after transmitting the operation command for the circuit breaker 52 (S704: NO), the remote monitoring control device 200 receives the control current waveform or operation current from the switch batch monitoring device 100. It is identified that the waveform could not be specified, that is, the circuit breaker 52 was not normally operated.

つぎに、遠隔監視制御装置200は、遠制装置40から状態信号S1の受信を確認できた場合(S704:YES)、ログ出力装置207によって、開閉器一括監視装置100が正常に動作したことを示す動作ログ(動作イベント発生日時、開閉器一括監視装置100の識別子、開閉器一括監視装置100が動作した旨等を対応づけたログ)を、S700で出力した操作ログに続けて出力する(S705)。さらに、遠制装置40から状態信号S1とともに受信した動作時間信号S2に基づいて、ログ出力装置207によって、遮断器52の動作時間を示した動作時間ログ(動作イベント発生日時、遮断器52の識別子、遮断器52の動作時間等を対応づけたログ)を、S705で出力した動作ログに続けて出力する(S706)。   Next, when the remote monitoring control device 200 can confirm the reception of the status signal S1 from the distance control device 40 (S704: YES), the log output device 207 confirms that the switch batch monitoring device 100 has operated normally. The operation log (the operation event occurrence date and time, the identifier of the switch collective monitoring device 100, the log indicating that the switch collective monitoring device 100 is operated, etc.) is output following the operation log output in S700 (S705). ). Further, based on the operation time signal S2 received together with the status signal S1 from the distance control device 40, the log output device 207 operates the operation time log indicating the operation time of the circuit breaker 52 (operation event occurrence date and time, circuit breaker 52 identifier). , The log in which the operation time of the circuit breaker 52 is associated) is output following the operation log output in S705 (S706).

つぎに、遠隔監視制御装置200は、遠制装置40から受信した動作時間信号S2が示す遮断器52の動作時間と、メモリ202等に予め格納しておいた遮断器52の標準動作時間との差が基準値以内か否かを判定する(S706)。基準値内であることが判定された場合(S706:NO)、遮断器52の動作が正常であるため、S700に戻る。一方、基準値外であることが判定された場合(S706:NO)、ログ出力装置207によって、遮断器52の動作に異常が発生したことを通知するための異常ログ(異常イベント発生日時、遮断器52の識別子、遮断器52の動作に異常が発生した旨等を対応づけたログ)を、S705で出力した動作時間ログに続けて出力する(S707)。   Next, the remote monitoring control device 200 calculates the operation time of the circuit breaker 52 indicated by the operation time signal S2 received from the distance control device 40 and the standard operation time of the circuit breaker 52 stored in advance in the memory 202 or the like. It is determined whether or not the difference is within a reference value (S706). If it is determined that the value is within the reference value (S706: NO), the operation of the circuit breaker 52 is normal, and the process returns to S700. On the other hand, when it is determined that the value is outside the reference value (S706: NO), the log output device 207 notifies an abnormality log (abnormal event occurrence date / time, interruption) for notifying that an abnormality has occurred in the operation of the circuit breaker 52. The log indicating that the identifier of the device 52 is associated with the occurrence of an abnormality in the operation of the circuit breaker 52) is output following the operation time log output in S705 (S707).

尚、S707における遮断器52の動作に異常が発生したか否かの判定は、開閉器一括監視装置100が行ってもよい。この場合、開閉器一括監視装置100は、上記異常ログの内容を通知する異常通知信号を、状態信号S1及び動作時間信号S2とともに、遠制装置40を介して遠隔監視制御装置200に送信する。また、遠隔監視制御装置200は、開閉器一括監視装置100から受信した状態信号S1、動作時間信号S2、異常通知信号(異常の場合のみ)に基づいて、ログ出力装置207によって、遮断器52の操作ログ、開閉器一括監視装置100の動作ログ、遮断器52の動作時間ログ、遮断器52の動作の異常ログ(異常の場合のみ)を、時系列に出力する。   Note that the switch batch monitoring device 100 may determine whether or not an abnormality has occurred in the operation of the circuit breaker 52 in S707. In this case, the switchgear collective monitoring device 100 transmits an abnormality notification signal for notifying the contents of the abnormality log to the remote monitoring control device 200 via the distance control device 40 together with the status signal S1 and the operation time signal S2. In addition, the remote monitoring control device 200 uses the log output device 207 to control the circuit breaker 52 based on the status signal S1, the operation time signal S2, and the abnormality notification signal (only in case of abnormality) received from the switchgear collective monitoring device 100. An operation log, an operation log of the switchgear batch monitoring device 100, an operation time log of the circuit breaker 52, and an abnormality log (only in case of an abnormality) of the operation of the circuit breaker 52 are output in time series.

表1は、○○変電所の○○線に配置された遮断器番号101の遮断器52を投入操作した場合に、遮断器番号101の遮断器52の動作時間(30.5ms)と標準動作時間との差が基準値内となるとき、遠隔監視制御装置200のログ出力装置207によって出力されるログの一例を示している。表1の中で、1行目が遮断器52の操作ログに対応し、2行目が開閉器一括監視装置200の動作ログに対応し、3行目が遮断器52の動作時間ログに対応している。

Figure 0005317724
Table 1 shows the operation time (30.5 ms) and standard operation of the circuit breaker 52 with the circuit breaker number 101 when the circuit breaker 52 with the circuit breaker number 101 arranged on the line XX of the XX substation is turned on. An example of the log output by the log output device 207 of the remote monitoring control device 200 when the difference from the time is within the reference value is shown. In Table 1, the first line corresponds to the operation log of the circuit breaker 52, the second line corresponds to the operation log of the switchgear monitoring apparatus 200, and the third line corresponds to the operation time log of the circuit breaker 52. doing.
Figure 0005317724

表2は、○○変電所の○○線に配置された遮断器番号101の遮断器52を投入操作した場合に、その遮断器52の動作時間(60.3ms)と標準動作時間との差が基準値外となるとき、遠隔監視制御装置200のログ出力装置207によって出力されるログの一例を示している。表2の中で、1行目が遮断器52の操作ログに対応し、2行目が開閉器一括監視装置200の動作ログに対応し、3行目が遮断器52の動作時間ログに対応し、4行目が遮断器52の異常ログに対応している。

Figure 0005317724
Table 2 shows the difference between the operation time (60.3 ms) of the circuit breaker 52 and the standard operation time when the circuit breaker 52 with the circuit breaker number 101 arranged on the line XX of the XX substation is operated. 6 shows an example of a log output by the log output device 207 of the remote monitoring control device 200 when the value is outside the reference value. In Table 2, the first line corresponds to the operation log of the circuit breaker 52, the second line corresponds to the operation log of the switchgear monitoring apparatus 200, and the third line corresponds to the operation time log of the circuit breaker 52. The fourth line corresponds to the abnormal log of the circuit breaker 52.
Figure 0005317724

以上、本発明によれば、電気所に開閉器一括監視装置100を1台設置すれば、電気所の開閉器を停電することなく、当該電気所内の全ての開閉器の動作特性、具体的には、系統操作時や事故遮断時等において当該開閉器が動作する際にその制御部に流れる制御電流波形及び操作電流波形や、操作指令を発してから当該開閉器の制御用継電器の補助接点(52a、52b等)が動作するまでの動作時間を測定できる。つまり、1台の開閉器一括監視装置100によって、電気所内の全ての開閉器の状態を低コストで把握することが可能である。   As described above, according to the present invention, when one switch monitoring device 100 is installed in an electric station, the operating characteristics of all the switches in the electric station, specifically, without power failure of the switch in the electric station, specifically, Is a control current waveform and an operation current waveform that flow to the control unit when the switch is operated at the time of system operation, accident interruption, etc., and an auxiliary contact of the control relay of the switch after issuing an operation command ( 52a, 52b, etc.) can be measured. That is, it is possible to grasp the state of all the switches in the electric station at a low cost by the single switch overall monitoring apparatus 100.

また、上記の表1、表2に示すとおり、遠隔監視制御装置200は、遮断器52の通常の操作ログに続けて、開閉器一括監視装置100の動作ログと、遮断器52の動作時間を示す動作時間ログと、遮断器52の動作に異常が発生した場合には異常ログと、を続けて出力する。これらの出力されたログによって、電気所の開閉器を一々停止して点検作業しなくても、電気所の開閉器を操作する毎に、電気所の開閉器の状態把握をリアルタイムで行うことが可能である。   Further, as shown in Tables 1 and 2 above, the remote monitoring and control device 200 displays the operation log of the switchgear batch monitoring device 100 and the operation time of the circuit breaker 52 following the normal operation log of the circuit breaker 52. The operation time log shown, and when an abnormality occurs in the operation of the circuit breaker 52, the abnormality log is continuously output. With these logs, you can grasp the status of the electrical switch in real time each time you operate the electrical switch, without having to stop and check the electrical switch. Is possible.

また、 遠隔監視制御装置200は、ログ出力装置207によって、電気所全ての開閉器の動作時間を動作時間ログとしてデータベース203等に蓄積しているため、将来的な電気所の開閉器の予防保全のための基礎データを取得することができる。   In addition, the remote monitoring and control device 200 stores the operation time of all switches in the electric station as the operation time log in the database 203 or the like by the log output device 207. Therefore, preventive maintenance of the switch in the future electric station Basic data for can be obtained.

また、遠隔監視制御装置200は、電気所の各開閉器の標準動作時間をメモリ202等に予め格納しておき、遠制装置40から送られる動作時間信号S2が示す動作時間と照合することで、開閉器の動作に異常が発生したか否かの判定を自動で行うことができる。このため、監視員による開閉器の動作良否の判断が不要となる。   In addition, the remote monitoring control device 200 stores the standard operation time of each switch in the electric station in the memory 202 or the like in advance, and compares it with the operation time indicated by the operation time signal S2 sent from the distance control device 40. It is possible to automatically determine whether or not an abnormality has occurred in the operation of the switch. For this reason, it is not necessary to judge whether the operation of the switch is good or not.

また、グリス固化が原因となる遮断器の不具合を把握するためには、停電操作等の最初の操作時において遮断器の動作特性を測定することが有効であることが知られている。本実施の形態によれば、開閉器一括監視装置100を配置しているため、停電操作前に専用の測定装置を設置することが不要となり、監視コストの低減化を図ることができる。   Moreover, it is known that measuring the operating characteristics of the circuit breaker at the time of the first operation such as a power failure operation is effective for grasping the malfunction of the circuit breaker caused by grease solidification. According to the present embodiment, since the switchgear collective monitoring device 100 is arranged, it is not necessary to install a dedicated measuring device before a power failure operation, and the monitoring cost can be reduced.

また、開閉器一括監視装置100のデータベース103に記録保存されている開閉器の制御電流波形及び操作電流波形により詳細な分析(例えば、開閉器の不具合の前兆)が可能となり、事故に進展するよりも前に、実効性の高い予防保全の対応が可能となる。   In addition, the control current waveform and the operation current waveform of the switch recorded and stored in the database 103 of the switchgear monitoring apparatus 100 enables detailed analysis (for example, a precursor of a malfunction of the switch), and progresses to an accident. Before that, it is possible to respond to highly effective preventive maintenance.

以上、本発明の実施形態について前述したように説明したが、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。本発明は、その趣旨を逸脱することなく、変更/改良され得るととともに、本発明にはその等価物も含まれる。   As mentioned above, although embodiment of this invention was described as mentioned above, it is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. The present invention can be changed / improved without departing from the gist thereof, and the present invention includes equivalents thereof.

10 直流電源装置
CT1、CT2 電流変成器
MCCB1、MCCB2、MCCB3 配線用遮断器
20、30 分電盤
40 遠制装置
42、45 制御用継電器
43、46 選択用継電器
52 遮断器
60 投入制御回路
62 引外し回路
64 投入回路
70 保護継電器回路
80 自動復旧回路
100 開閉器一括監視装置
101 ADC
102 メモリ
103 データベース
104 CPU
105 入力装置
106 表示装置
200 遠隔監視制御装置
201 親局
202 メモリ
203 データベース
204 CPU
205 入力装置
206 表示装置
207 ログ出力装置
208 バス
210 通信網
10 DC power supply devices CT1, CT2 Current transformers MCCB1, MCCB2, MCCB3 Circuit breaker 20, 30 Distribution board 40 Distance control device 42, 45 Control relay 43, 46 Selection relay 52 Breaker 60 Input control circuit 62 Pull Removal circuit 64 Closing circuit 70 Protection relay circuit 80 Automatic recovery circuit 100 Switch batch monitoring device 101 ADC
102 Memory 103 Database 104 CPU
105 Input Device 106 Display Device 200 Remote Monitoring and Control Device 201 Master Station 202 Memory 203 Database 204 CPU
205 Input Device 206 Display Device 207 Log Output Device 208 Bus 210 Communication Network

Claims (5)

遠隔監視制御装置が制御所に配置され、当該遠隔監視制御装置と通信可能に接続された遠隔監視制御対象機器である複数の開閉器と、当該複数の開閉器の各制御部及び当該複数の開閉器以外の機器の各制御部に流れる制御電流を配線用遮断器より分岐して供給する制御電源と、当該複数の開閉器の動作を一括監視する開閉器一括監視装置と、が電気所に配置され、前記遠隔監視制御装置が前記開閉器一括監視装置を介して前記複数の開閉器の動作を一括監視する開閉器一括遠隔監視方法であって、
前記遠隔監視制御装置が、前記複数の開閉器のうち操作対象の開閉器に操作指令を送信するとともに、当該操作対象の開閉器の操作ログを出力するステップと、
前記開閉器一括監視装置が、前記遠隔監視制御装置からの操作指令に基づき前記操作対象の開閉器の動作が開始してから終了するまでの間、前記制御電源の前記配線用遮断器を流れる主幹電流波形を測定して前記操作対象の開閉器の制御電流波形として記録するステップと、
前記開閉器一括監視装置が、記録された制御電流波形に基づき制御電流が流れた時間を前記操作対象の開閉器の動作時間として検出するステップと、
前記開閉器一括監視装置が、検出した前記操作対象の開閉器の動作時間を示す動作時間信号を、前記遠隔監視制御装置に送信するステップと、
前記遠隔監視制御装置が、前記開閉器一括監視装置から受信した動作時間信号が示す前記操作対象の開閉器の動作時間ログを、前記操作ログに続けて出力するステップと、
を有することを特徴とする開閉器一括遠隔監視方法。
A remote monitoring and control device is disposed at a control station, and is connected to the remote monitoring and control device so as to be able to communicate with the remote monitoring and control device, a plurality of switches, each control unit of the plurality of switches, and the plurality of switching A control power supply that branches and supplies the control current that flows to each control unit of the equipment other than the switch from the circuit breaker for wiring, and a switch monitoring device that collectively monitors the operation of the switch The remote monitoring and control device is a switch batch remote monitoring method in which the operations of the plurality of switches are collectively monitored via the switch batch monitoring device,
The remote monitoring and control device transmits an operation command to an operation target switch among the plurality of switches, and outputs an operation log of the operation target switch;
The main switch that flows through the circuit breaker of the control power source from the start to the end of the operation of the target switch based on the operation command from the remote monitoring control device. Measuring a current waveform and recording it as a control current waveform of the switch to be operated;
The switch collective monitoring device detects a time when a control current flows based on a recorded control current waveform as an operation time of the switch to be operated;
The switch collective monitoring device transmits an operation time signal indicating the detected operation time of the switch to be operated to the remote monitoring control device;
The remote monitoring control device outputs an operation time log of the operation target switch indicated by the operation time signal received from the switch collective monitoring device, following the operation log;
A switch batch remote monitoring method characterized by comprising:
請求項1に記載の開閉器一括遠隔監視方法であって、
前記制御電流波形として記録するステップは、
前記開閉器一括監視装置が、測定した主幹電流波形から定常電流を差し引いた相対電流波形が、前記開閉器の制御電流波形の特性に基づき前記複数の開閉器のいずれかの制御部に流れる制御電流波形であるか否かを判定するステップと、
前記開閉器一括監視装置が、前記制御電流波形であることが判定されたとき、測定した主幹電流波形を制御電流波形として記録するステップと、
を含み、
当該開閉器一括遠隔監視方法は、
前記開閉器一括監視装置が、制御電流波形の記録が完了したことを示す状態信号を、前記動作時間信号とともに前記遠隔監視制御装置に送信するステップと、
前記遠隔監視制御装置が、前記操作指令を送信した後に前記開閉器一括監視装置より前記動作時間信号とともに前記状態信号を受信するか否かを監視するステップと、を更に備え、
前記操作ログに続けて出力するステップでは、前記遠隔監視制御装置が、前記状態信号を受信した場合、前記開閉器一括監視装置の動作ログを、前記操作ログに続けて出力し、前記動作時間ログを、前記動作ログに続けて出力すること、を特徴とする開閉器一括遠隔監視方法。
The switch remote monitoring method according to claim 1,
The step of recording as the control current waveform comprises:
The control current that the relative current waveform obtained by subtracting the steady current from the main current waveform measured by the switch collective monitoring device flows to one of the control units of the plurality of switches based on the characteristics of the control current waveform of the switch Determining whether it is a waveform; and
Recording the measured main current waveform as a control current waveform when it is determined that the switch batch monitoring device is the control current waveform; and
Including
The switch remote monitoring method is
The switch collective monitoring device transmits a status signal indicating that the recording of the control current waveform is completed to the remote monitoring control device together with the operation time signal;
The remote monitoring and control device further comprises a step of monitoring whether or not the status signal is received together with the operation time signal from the switch collective monitoring device after transmitting the operation command ,
In the step of outputting following the operation log, when the remote monitoring control device receives the status signal, the operation log of the switch collective monitoring device is output following the operation log, and the operation time log Is output in succession to the operation log .
請求項1又は2に記載の開閉器一括遠隔監視方法であって、
前記遠隔監視制御装置が、前記動作時間信号が示す前記操作対象の開閉器の動作時間と予め記憶しておいた前記開閉器の標準動作時間との差が基準値以内か否かを判定するステップと、
前記遠隔監視制御装置が、前記基準値外であることが判定されたとき、前記操作対象の開閉器の動作の異常ログを、前記動作時間ログに続けて出力するステップと、
を有することを特徴とする開閉器一括遠隔監視方法。
The switch remote monitoring method according to claim 1 or 2,
The remote monitoring control device determines whether or not a difference between an operation time of the switch to be operated indicated by the operation time signal and a standard operation time of the switch stored in advance is within a reference value. When,
When it is determined that the remote monitoring and control device is out of the reference value, an abnormality log of the operation of the switch to be operated is output following the operation time log; and
A switch batch remote monitoring method characterized by comprising:
請求項1又は2に記載の開閉器一括遠隔監視方法であって、
前記開閉器一括監視装置が、前記動作時間信号が示す前記操作対象の開閉器の動作時間と予め記憶しておいた前記開閉器の標準動作時間との差が基準値以内か否かを判定するステップと、
前記開閉器一括監視装置が、前記基準値外であることが判定されたとき、前記操作対象の開閉器の動作の異常通知信号を、前記遠隔監視制御装置に送信するステップと、
前記遠隔監視制御装置が、前記開閉器一括監視装置より受信した前記異常通知信号に基づき、前記操作対象の開閉器の動作の異常ログを、前記動作時間ログに続けて出力するステップと、
を有することを特徴とする開閉器一括遠隔監視方法。
The switch remote monitoring method according to claim 1 or 2,
The switch overall monitoring device determines whether or not a difference between an operation time of the switch to be operated indicated by the operation time signal and a standard operation time of the switch stored in advance is within a reference value. Steps,
When it is determined that the switch batch monitoring device is outside the reference value, an abnormality notification signal of the operation of the switch to be operated is transmitted to the remote monitoring control device;
The remote monitoring and control device, based on the abnormality notification signal received from the switch collective monitoring device, outputting an operation abnormality log of the operation target switch following the operation time log;
A switch batch remote monitoring method characterized by comprising:
遠隔監視制御装置が制御所に配置され、当該遠隔監視制御装置と通信可能に接続された遠隔監視制御対象機器である複数の開閉器と、当該複数の開閉器の各制御部及び当該複数の開閉器以外の機器の各制御部に流れる制御電流を配線用遮断器より分岐して供給する制御電源と、当該複数の開閉器の動作を一括監視する開閉器一括監視装置と、が電気所に配置され、前記遠隔監視制御装置が前記開閉器一括監視装置を介して前記複数の開閉器の動作を一括監視する開閉器一括遠隔監視システムであって、
前記開閉器一括監視装置は、
前記配線用遮断器を流れる主幹電流波形を測定する電流波形測定部と、
前記遠隔監視制御装置からの操作指令に基づき操作対象の開閉器の動作が開始してから終了するまでの間、前記電流波形測定部により測定された主幹電流波形を前記操作対象の開閉器の制御電流波形として記録する波形記録部と、
前記記録装置により記録された制御電流波形に基づき制御電流が流れた時間を前記操作対象の開閉器の動作時間として検出して当該動作時間を示す動作時間信号を出力する動作時間検出部と、を有し、
前記遠隔監視制御装置は
前記複数の開閉器のうち操作指令を送信した操作対象の開閉器の操作ログと、当該操作対象の開閉器に操作指令を送信した後に前記開閉器一括監視装置より受信する動作時間信号が示す当該操作対象の開閉器の動作時間ログと、を出力するログ出力部を有すること、
を特徴とする開閉器一括遠隔監視システム。
A remote monitoring and control device is disposed at a control station, and is connected to the remote monitoring and control device so as to be able to communicate with the remote monitoring and control device, a plurality of switches, each control unit of the plurality of switches, and the plurality of switching A control power supply that branches and supplies the control current that flows to each control unit of the equipment other than the switch from the circuit breaker for wiring, and a switch monitoring device that collectively monitors the operation of the switch The remote monitoring and control device is a switch batch remote monitoring system that collectively monitors the operation of the plurality of switches via the switch batch monitoring device,
The switch collective monitoring device is:
A current waveform measuring unit for measuring a main current waveform flowing through the circuit breaker for wiring;
The main current waveform measured by the current waveform measuring unit is controlled from the start of the operation of the operation target switch based on the operation command from the remote monitoring control device until the operation ends. A waveform recording section for recording as a current waveform;
An operation time detection unit that detects a time when a control current flows based on a control current waveform recorded by the recording device as an operation time of the switch to be operated and outputs an operation time signal indicating the operation time; Have
The remote monitoring control device receives an operation log of an operation target switch that has transmitted an operation command from among the plurality of switches, and transmits the operation command to the operation target switch after being received from the switch collective monitoring device. Having a log output unit for outputting an operation time log of the switch to be operated indicated by the operation time signal;
Switch remote monitoring system characterized by
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JP5727239B2 (en) * 2011-01-17 2015-06-03 中国電力株式会社 Circuit breaker test apparatus, program, and circuit breaker test method
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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61108980A (en) * 1984-11-01 1986-05-27 Mitsubishi Electric Corp Signal current waveform detector
JPS61198070A (en) * 1985-02-28 1986-09-02 Fuji Electric Co Ltd Control current monitor device for circuit breaker
JPH1084643A (en) * 1996-09-10 1998-03-31 East Japan Railway Co Open current detector for current breaker
JP3876966B2 (en) * 2000-11-28 2007-02-07 株式会社日立エンジニアリング・アンド・サービス Substation facility remote monitoring system and remote monitoring method
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