JP2009171722A - Digital protective relay device and test method thereof - Google Patents

Digital protective relay device and test method thereof Download PDF

Info

Publication number
JP2009171722A
JP2009171722A JP2008006473A JP2008006473A JP2009171722A JP 2009171722 A JP2009171722 A JP 2009171722A JP 2008006473 A JP2008006473 A JP 2008006473A JP 2008006473 A JP2008006473 A JP 2008006473A JP 2009171722 A JP2009171722 A JP 2009171722A
Authority
JP
Japan
Prior art keywords
test
relay
converter
relay element
digital
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2008006473A
Other languages
Japanese (ja)
Other versions
JP5252930B2 (en
Inventor
Yoshiaki Date
義明 伊達
Takanori Fujisaki
貴規 藤▲崎▼
Naoko Sugawara
直子 菅原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chugoku Electric Power Co Inc
Original Assignee
Chugoku Electric Power Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chugoku Electric Power Co Inc filed Critical Chugoku Electric Power Co Inc
Priority to JP2008006473A priority Critical patent/JP5252930B2/en
Publication of JP2009171722A publication Critical patent/JP2009171722A/en
Application granted granted Critical
Publication of JP5252930B2 publication Critical patent/JP5252930B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital protective relay device capable of reducing the cost required for a test instrument by eliminating the necessity of the multifunctional test instrument and easily executing a test, and to provide a test method thereof. <P>SOLUTION: A first test terminal 11 capable of connecting a voltage/current generator for imparting a voltage and a current for test is provided on an input side of an input converter 2, and a second test terminal 12 capable of connecting an information processing device 13 for imparting a digital quantity for executing a test of a relay constituent is provided between an A/D converter 3 and a relay constituent calculating section 4. A voltage and a current for test are given from the first test terminal 11 to confirm the soundness of the input converter, and then, a digital quantity for test is given from the second test terminal 12 to execute a test of the relay constituent. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、電力系統の保護に用いられるデジタル保護継電装置およびこれを試験する方法に関する。   The present invention relates to a digital protection relay device used for power system protection and a method for testing the same.

デジタル保護継電装置は、一般的に、電力系統からの電気量を入力する入力変換器と、この入力変換器に入力されたアナログ量をデジタル量に変換するＡ／Ｄ変換器と、前記デジタル量によりリレー要素を動作させ、該リレー要素の動作信号を出力するリレー要素演算部と、前記リレー要素演算部で演算されたリレー動作信号に基づいてシーケンス処理を実行するシーケンス処理部と、前記シーケンス処理の結果を出力する出力処理部（ＤＯ）とを有し、例えば送電線に流れる電流や電圧等の電気量を必要なレベルに変換した上でデジタル信号に変換し、その後演算を実行し、その演算結果を基に予め整定された動作整定値と比較して事故の有無を判定し、事故と判定された場合に遮断器にトリップ指令を出力する機能を有している。   Generally, the digital protection relay device includes an input converter that inputs an electric quantity from an electric power system, an A / D converter that converts an analog quantity input to the input converter into a digital quantity, and the digital A relay element operation unit that operates a relay element according to an amount and outputs an operation signal of the relay element; a sequence processing unit that executes a sequence process based on a relay operation signal calculated by the relay element operation unit; and the sequence It has an output processing unit (DO) that outputs the processing result, and converts, for example, the amount of electricity such as current and voltage flowing in the power transmission line into a required level and then converts it into a digital signal, and then executes the calculation. Based on the calculation result, it has a function of determining the presence or absence of an accident by comparing with an operation set value set in advance, and outputting a trip command to the circuit breaker when it is determined to be an accident.

従来、このデジタル保護継電装置が正常に機能するか否かを試験する場合には、入力変換器の入力側に設けられた試験用端子（ＣＴＴ，ＰＴＴ）に試験用の電圧・電流を与える電圧・電流発生器を接続し、この電圧・電流発生器からさまざまな試験用の電圧・電流をアナログ量の形で供給して試験を行うようにしている。   Conventionally, when testing whether or not this digital protective relay device functions normally, a test voltage / current is applied to the test terminals (CTT, PTT) provided on the input side of the input converter. A voltage / current generator is connected, and various voltages and currents for testing are supplied from the voltage / current generator in the form of analog quantities for testing.

また、試験条件の都度、条件設定をたびたび行う手間を解消するための自動試験方法も開発されている。例えば、下記する特許文献１に示される構成例においては、保護継電装置に試験を行うための電圧、電流を与える電圧・電流発生部に対して保護継電装置の自動試験を行うために必要な電流・電圧値を与える制御ユニットを設け、この制御ユニットに情報処理装置を接続して試験に必要な各種データを入力したり、制御ユニットから試験データを取り込んで試験結果を表示するデータを処理したりする等の構成が開示されている。
特開２０００―１８４５７４号公報 In addition, an automatic test method has been developed to eliminate the trouble of frequently setting conditions for each test condition. For example, in the configuration example shown in Patent Document 1 below, it is necessary to perform an automatic test of a protective relay device on a voltage / current generator that provides a voltage and current for testing the protective relay device. A control unit that provides current and voltage values is provided, and an information processing device is connected to this control unit to input various data necessary for testing, and test data is taken from the control unit and processed to display test results A configuration such as doing so is disclosed.
JP 2000-184574 A

しかしながら、従来においては、保護継電装置の特性を確認するために、３相電圧・電流を発生することができると共に様々な条件設定が行える多機能な試験器（例えば、外部からのトリップ信号入力部や急変機能、ミリセコンド計等を内臓したもの）が必要となり、現地に多数の試験器材を搬入して試験内容に応じた試験器材の結線作業を行った上でそれぞれの試験器材を調整する必要があるため、試験器に高額な費用が必要となり、また、試験器材の搬入や、取り付け、交換、調整作業等に多くの手間を要するものであった。   However, conventionally, in order to confirm the characteristics of the protective relay device, a multi-function tester (for example, an external trip signal input) that can generate a three-phase voltage / current and set various conditions. Parts, rapid change function, millisecond meter, etc.) are required, and a large number of test equipment is brought to the site and the test equipment is connected according to the test contents, and then each test equipment is adjusted. Therefore, the test equipment is expensive, and it takes a lot of time to carry in, install, replace and adjust the test equipment.

上述した自動試験を行う構成においては、それぞれの試験条件にあった電圧、電流の入力、条件の設定等を自動化することができるものであり、例えば、特許文献１に示される構成においては、保護継電装置の試験を行うために必要な電流・電圧値を与える制御ユニットを情報処理装置で制御することで、試験器材の取り付けや交換にかかる手間を省くようにしているが、様々な条件設定が行える多機能な試験器（制御ユニット等）は依然として必要になるものであった。   In the configuration in which the automatic test described above is performed, voltage, current input, setting of conditions, and the like suitable for each test condition can be automated. For example, in the configuration disclosed in Patent Document 1, protection is performed. By controlling the control unit that gives the current and voltage values necessary for testing the relay device with the information processing device, the effort to install and replace the test equipment is saved. A multifunctional tester (such as a control unit) that can be used is still necessary.

本発明は、上述のような事情に鑑みてなされたものであり、多機能な試験器を不要とし、試験器の搬入、取り付け、交換、調整作業等の試験に伴う作業の手間を低減すると共に、試験を簡易に行うことが可能なデジタル保護継電装置およびデジタル保護継電装置の試験方法を提供することを主たる課題としている。   The present invention has been made in view of the circumstances as described above, eliminates the need for a multifunctional tester, and reduces the labor involved in tests such as loading, mounting, replacement, and adjustment of the tester. The main object is to provide a digital protective relay device and a test method for the digital protective relay device that can be easily tested.

上記課題を達成するために、この発明に係るデジタル保護継電装置は、電力系統からの電気量を入力する入力変換器と、前記入力変換器で入力されたアナログ量をデジタル量に変換するＡ／Ｄ変換器と、前記デジタル量によりリレー要素を動作させ、該リレー要素の動作信号を出力するリレー要素演算部と、前記リレー要素演算部で演算されたリレー動作信号に基づきシーケンス処理を実行するシーケンス処理部と、前記シーケンス処理の結果を出力する出力処理部とを有する構成おいて、前記入力変換器の入力側に試験用の電圧、電流を与える電圧・電流発生器を第１のテスト端子を介して接続可能とし、前記Ａ／Ｄ変換器と前記リレー要素演算部との間に前記リレー要素の試験を行うためのデジタル量を与える情報処理装置を第２のテスト端子を介して接続可能とすることを特徴としている。   In order to achieve the above object, a digital protection relay device according to the present invention includes an input converter that inputs an electric quantity from an electric power system, and an analog quantity that is input from the input converter into a digital quantity. A D / D converter, a relay element operation unit that operates the relay element according to the digital quantity, and outputs an operation signal of the relay element, and executes a sequence process based on the relay operation signal calculated by the relay element operation unit In a configuration having a sequence processing unit and an output processing unit for outputting a result of the sequence processing, a voltage / current generator for supplying a test voltage and current to the input side of the input converter is a first test terminal. An information processing apparatus that provides a digital quantity for testing the relay element between the A / D converter and the relay element calculation unit. It is characterized in that a connectable via a terminal.

したがって、電圧・電流発生器を接続可能な第１のテスト端子と情報処理装置を接続可能な第２のテスト端子とを具備しているので、第１のテスト端子に電圧・電流発生器を接続して入力変換器の健全性だけを確認し、入力変換器の健全性が確認できた後には、第２のテスト端子に情報処理装置を接続して試験用のデジタル量を供給し、リレー要素の各種試験を行うことが可能となる。   Accordingly, since the first test terminal to which the voltage / current generator can be connected and the second test terminal to which the information processing apparatus can be connected are provided, the voltage / current generator is connected to the first test terminal. After confirming only the soundness of the input converter and confirming the soundness of the input converter, connect the information processing device to the second test terminal to supply a digital quantity for the test. It is possible to perform various tests.

即ち、電圧・電流発生器を接続して行う試験を入力変換器の健全性を確かめる試験のみとしたので、多機能な試験器は不要となり、また、リレー要素の試験を情報処理装置からのデジタル信号としたので、汎用のパーソナルコンピュータ等を用いることで試験を簡易に行うことが可能となる。   In other words, the test conducted by connecting the voltage / current generator is only the test to confirm the soundness of the input converter, so that a multi-functional tester is not required, and the relay element test is performed digitally from the information processing device. Since the signal is used, the test can be easily performed by using a general-purpose personal computer or the like.

尚、電圧・電流発生器から与えられた電圧・電流による試験結果を、前記第１のテスト端子に接続される情報処理装置に取り込み可能とし、入力変換器の健全性の試験データを情報処理装置に表示させるようにしてもよい。
また、リレー要素の試験結果を、情報処理装置が接続される別個の出力端子を介して、又は、第１のテスト端子を介して情報処理装置に取り込み、情報処理装置にリレー要素の試験データを表示可能としてもよい。 The test result based on the voltage / current supplied from the voltage / current generator can be taken into the information processing apparatus connected to the first test terminal, and the soundness test data of the input converter is stored in the information processing apparatus. You may make it display on.
Also, the relay element test results are taken into the information processing apparatus via a separate output terminal to which the information processing apparatus is connected or via the first test terminal, and the relay element test data is stored in the information processing apparatus. Display may be possible.

したがって、本発明に係るデジタル保護継電装置の試験方法は、電力系統からの電気量を入力する入力変換器と、前記入力変換器で入力されたアナログ量をデジタル量に変換するＡ／Ｄ変換器と、前記デジタル量によりリレー要素を動作させ、該リレー要素の動作信号を出力するリレー要素演算部と、前記リレー要素演算部で演算されたリレー動作信号に基づいてシーケンス処理を実行するシーケンス処理部と、前記シーケンス処理の結果を出力する出力処理部とを有するデジタル保護継電装置の試験方法であって、前記入力変換器の入力側に電圧・電流発生器を接続して試験用の電圧、電流を与えることで入力変換器の健全性を確認する第１の試験ステップと、前記Ａ／Ｄ変換器と前記リレー要素演算部との間に情報処理装置を接続して試験用のデジタル量を与えることで前記リレー要素の試験を行う第２の試験ステップとを具備している。   Therefore, the digital protection relay device testing method according to the present invention includes an input converter for inputting an electric quantity from an electric power system, and an A / D conversion for converting an analog quantity input by the input converter into a digital quantity. A relay element that operates a relay element according to the digital quantity and outputs an operation signal of the relay element, and a sequence process that executes a sequence process based on the relay operation signal calculated by the relay element calculation unit And an output processing unit for outputting the result of the sequence processing, a test method for a digital protection relay device, comprising a voltage / current generator connected to the input side of the input converter A first test step for confirming the soundness of the input converter by applying an electric current, and an information processing device connected between the A / D converter and the relay element calculation unit And and a second test step for testing of the relay elements by providing a digital amount of use.

この際、入力変換器の健全性の確認は、前記Ａ／Ｄ変換器と前記リレー要素演算部との間に接続される情報処理装置で確認するようにしてもよい。また、リレー要素の試験結果は、前記Ａ／Ｄ変換器と前記リレー要素演算部との間に接続される情報処理装置に、前記リレー要素の試験結果情報を取り込んで表示させるようにしてもよい。   At this time, the soundness of the input converter may be confirmed by an information processing device connected between the A / D converter and the relay element calculation unit. Further, the relay element test result may be displayed on the information processing apparatus connected between the A / D converter and the relay element calculation unit by fetching the relay element test result information. .

以上述べたように、本発明によれば、入力変換器の健全性を確認する試験のみを入力変換器の入力側に接続される電圧・電流発生装置からのアナログ量により行い、リレー要素の試験をＡ／Ｄ変換器とリレー要素演算部との間に接続される情報処理装置からのデジタル量により行うようにしたので、多機能な試験器が不要になると共に、リレー要素の試験を簡易に行うことが可能となる。     As described above, according to the present invention, only the test for confirming the soundness of the input converter is performed based on the analog amount from the voltage / current generator connected to the input side of the input converter, and the relay element test is performed. Is performed by the digital quantity from the information processing device connected between the A / D converter and the relay element calculation unit, so that a multi-functional tester is not required and the test of the relay element is simplified. Can be done.

以下、本発明の最良の実施形態を添付図面を参照しながら説明する。   DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, the best embodiment of the invention will be described with reference to the accompanying drawings.

図１において、本発明の実施形態に係るデジタル保護継電装置１の構成図が示されている。
この保護継電装置１は、電力系統の電気量である電圧が図示しない計器用変圧器（ＰＴ）で検出され、また電流が図示しない計器用変流器（ＣＴ）で検出されてアナログ量として取り込まれ、入力変換器２に入力される。この入力されたアナログ量は、入力変換器２においてデジタル型保護継電装置で取り扱える電気信号に変換され、この変換された電気信号は、Ａ／Ｄ変換器３に入力されて、デジタル量に変換される。 In FIG. 1, the block diagram of the digital protection relay apparatus 1 which concerns on embodiment of this invention is shown.
In this protective relay device 1, the voltage, which is the amount of electricity in the power system, is detected by an instrument transformer (PT) (not shown), and the current is detected by an instrument current transformer (CT) (not shown) as an analog quantity. It is captured and input to the input converter 2. The input analog quantity is converted into an electric signal that can be handled by the digital type protective relay device in the input converter 2, and the converted electric signal is input to the A / D converter 3 and converted into a digital quantity. Is done.

このＡ／Ｄ変換器３でデジタル量に変換された入力電気量は、リレー要素演算部４に読み込まれ、ここでリレー演算処理が実施される。即ち、読み込まれたデジタル量に基づいてリレー要素を動作させるリレー演算処理を行い、デジタル量が予め定められた整定値を逸脱するときは電力系統に事故が発生したと判断して、リレー動作信号をシーケンス処理部５に対して出力する制御処理が行われる。   The input electric quantity converted into a digital quantity by the A / D converter 3 is read into the relay element calculation unit 4 where a relay calculation process is performed. That is, a relay calculation process for operating the relay element based on the read digital quantity is performed, and when the digital quantity deviates from a predetermined settling value, it is determined that an accident has occurred in the power system, and the relay operation signal Is output to the sequence processing unit 5.

そして、シーケンス処理部５においては、リレー動作信号に基づきシーケンス処理が実行される。このシーケンス処理に必要な現地機器からの情報（遮断機、断路器のパレット信号等）は、入力処理部（ＤＩ）６から入力され、シーケンス処理部５は、電力系統の保護区間の遮断器に対して出力処理部（ＤＯ）７を介してトリップ信号を出力する。   In the sequence processing unit 5, the sequence processing is executed based on the relay operation signal. Information from the field equipment necessary for this sequence processing (breaker, pallet signal of disconnector, etc.) is input from the input processing unit (DI) 6, and the sequence processing unit 5 is used as a circuit breaker in the protection section of the power system. On the other hand, a trip signal is output via an output processing unit (DO) 7.

したがって、電気系統に事故が発生した場合には、リレー要素演算部４のリレー演算処理によりリレー動作信号が出力され、シーケンス処理部５でシーケンス処理が実施され、出力処理部（ＤＯ）７から電力系統の事故区間の遮断器に対してトリップ信号を出力して遮断器の引き離しコイルを励磁して主接点を開成し、電力系統の保護を行う。尚、リレーの動作情報などの保護継電装置１の動作情報は、出力処理部（ＤＯ）８から出力端子９を介して取り出すことができるようになっている。   Therefore, when an accident occurs in the electrical system, a relay operation signal is output by the relay calculation process of the relay element calculation unit 4, the sequence process is performed by the sequence processing unit 5, and power is output from the output processing unit (DO) 7. A trip signal is output to the circuit breaker in the fault section of the system to excite the circuit breaker coil and open the main contact to protect the power system. In addition, the operation information of the protective relay device 1 such as the operation information of the relay can be taken out from the output processing unit (DO) 8 through the output terminal 9.

このようなデジタル保護継電装置１において、当該保護継電装置１が正常に機能するか否かを試験するために、入力変換器２の入力側にアナログ量としての試験用の電圧、電流を与える電圧・電流発生器１０を接続可能な第１のテスト端子（ＰＴＴ，ＣＴＴ）１１と、Ａ／Ｄ変換器３とリレー要素演算部４との間にリレー要素の試験を行うためのデジタル量を与えるパーソナルコンピュータ等の汎用性のある情報処理装置１３を接続可能な第２のテスト端子１２とが設けられている。   In such a digital protective relay device 1, in order to test whether or not the protective relay device 1 functions normally, a test voltage or current as an analog amount is applied to the input side of the input converter 2. A digital quantity for testing a relay element between a first test terminal (PTT, CTT) 11 to which a voltage / current generator 10 to be applied can be connected, and the A / D converter 3 and the relay element calculation unit 4 And a second test terminal 12 to which a general-purpose information processing device 13 such as a personal computer that can provide the information can be connected.

以上の構成において、次に、デジタル保護継電装置１の試験方法について説明する。
まず、図２に示されるように、第１のテスト端子１１に試験器としての電圧・電流発生器１０を接続し、また、第２のテスト端子１２に情報処理装置１３を接続して入力変換器２の健全性についての試験を行う。この試験は、電圧・電流発生器１０から試験用の電圧・電流を保護継電装置１に入力し、その結果を第２のテスト端子１２に接続された情報処理装置１３に取り込んで表示させ、入力された電気量に対して所定のデジタル値が得られているか否かを判断することにより行われる。 Next, a test method for the digital protection relay device 1 in the above configuration will be described.
First, as shown in FIG. 2, a voltage / current generator 10 as a tester is connected to the first test terminal 11 and an information processing device 13 is connected to the second test terminal 12 to perform input conversion. Test the integrity of vessel 2. In this test, a voltage / current for testing is input from the voltage / current generator 10 to the protective relay device 1, and the result is captured and displayed on the information processing device 13 connected to the second test terminal 12. This is done by determining whether or not a predetermined digital value is obtained for the input quantity of electricity.

このため、入力変換器２の健全性が確認できればいいので、試験器として多機能な電圧・電流発生器は不要であり、単純な試験器（電圧・電流発生器）１０で差し支えないため、試験器に要する費用を低減することが可能となる。   Therefore, as long as the soundness of the input converter 2 can be confirmed, a multifunctional voltage / current generator is not required as a tester, and a simple tester (voltage / current generator) 10 can be used. The cost required for the vessel can be reduced.

次に、入力変換器２の健全性が確認された後に、図３に示されるように、第２のテスト端子１２に情報処理装置１３を接続した状態とし、リレー要素を試験するためのデジタル波形データを情報処理装置１３からリレー要素演算部４に直接入力し、リレー要素の試験を行う。この試験結果は、リレー要素の動作情報等を出力する出力処理部（ＤＯ）８から出力端子９を介して情報処理装置１３に取り込まれ、情報処理装置１３のモニター上に表示される。   Next, after the soundness of the input converter 2 is confirmed, as shown in FIG. 3, a digital waveform for testing the relay element with the information processing device 13 connected to the second test terminal 12 Data is directly input from the information processing device 13 to the relay element calculation unit 4 to test the relay element. The test result is taken into the information processing device 13 from the output processing unit (DO) 8 that outputs the operation information of the relay element and the like through the output terminal 9 and displayed on the monitor of the information processing device 13.

したがって、リレー要素の試験は、情報処理装置１３からのデジタル信号である波形データの入力によって行われるので、所定のプログラムによって入力すべきデジタル波形データを自動生成することが可能となり、リレー要素の試験を簡易に行うことが可能となる。   Therefore, since the relay element test is performed by inputting waveform data that is a digital signal from the information processing device 13, digital waveform data to be input by a predetermined program can be automatically generated, and the relay element test is performed. Can be performed easily.

尚、上述の構成においては、リレー要素の動作情報等を出力端子９を介して情報処理装置１３に取り込むようにしたが、保護継電装置内で出力処理部（ＤＯ）８を第２のテスト端子１２に結線し、この第２のテスト端子１２を介して双方向のデータの送受信を可能とすることで、出力処理部（ＤＯ）８からの出力データを第２のテスト端子１２を介して情報処理装置１３に取り込むようにしてもよい。   In the above-described configuration, the operation information of the relay element and the like is taken into the information processing device 13 via the output terminal 9, but the output processing unit (DO) 8 is set in the second test in the protective relay device. By connecting to the terminal 12 and enabling bidirectional data transmission / reception via the second test terminal 12, output data from the output processing unit (DO) 8 can be transmitted via the second test terminal 12. You may make it take in in the information processing apparatus 13. FIG.

図１は、本発明に係るデジタル保護継電装置の全体構成を示すブロック図である。FIG. 1 is a block diagram showing the overall configuration of a digital protection relay device according to the present invention. 図２は、図１のデジタル保護継電装置を用いて入力変換器の健全性を確認する手法を説明するブロック図である。FIG. 2 is a block diagram illustrating a method for confirming the soundness of the input converter using the digital protection relay device of FIG. 図３は、図１のデジタル保護継電装置を用いてリレー要素を試験する手法を説明するブロック図である。FIG. 3 is a block diagram illustrating a technique for testing relay elements using the digital protective relay device of FIG.

符号の説明Explanation of symbols

１ デジタル保護継電装置
２ 入力変換器
３ Ａ／Ｄ変換器
４ リレー要素演算部
５ シーケンス処理部
７，８ 出力処理部
１０ 電圧・電流発生器
１１ 第１のテスト端子
１２ 第２のテスト端子
１３ 情報処理装置 DESCRIPTION OF SYMBOLS 1 Digital protective relay apparatus 2 Input converter 3 A / D converter 4 Relay element operation part 5 Sequence processing part 7, 8 Output processing part 10 Voltage / current generator 11 1st test terminal 12 2nd test terminal 13 Information processing device

Claims (6)

電力系統からの電気量を入力する入力変換器と、前記入力変換器で入力されたアナログ量をデジタル量に変換するＡ／Ｄ変換器と、前記デジタル量によりリレー要素を動作させ、該リレー要素の動作信号を出力するリレー要素演算部と、前記リレー要素演算部で演算されたリレー動作信号に基づきシーケンス処理を実行するシーケンス処理部と、前記シーケンス処理の結果を出力する出力処理部とを有するデジタル保護継電装置において、
前記入力変換器の入力側に試験用の電圧、電流を与える電圧・電流発生器を第１のテスト端子を介して接続可能とし、
前記Ａ／Ｄ変換器と前記リレー要素演算部との間に前記リレー要素の試験を行うためのデジタル量を与える情報処理装置を第２のテスト端子を介して接続可能とする
ことを特徴とするデジタル保護継電装置。 An input converter for inputting an electric quantity from an electric power system, an A / D converter for converting an analog quantity inputted by the input converter into a digital quantity, and operating a relay element by the digital quantity, the relay element A relay element calculation unit that outputs the operation signal of the above, a sequence processing unit that executes sequence processing based on the relay operation signal calculated by the relay element calculation unit, and an output processing unit that outputs the result of the sequence processing In digital protection relay device,
A voltage / current generator for applying a test voltage and current to the input side of the input converter can be connected via the first test terminal,
An information processing device for providing a digital quantity for testing the relay element can be connected between the A / D converter and the relay element calculation unit via a second test terminal. Digital protective relay device. 前記電圧・電流発生器から与えられた電圧・電流による試験結果は、前記第２のテスト端子に接続される前記情報処理装置に取り込み可能であることを特徴とする請求項１記載のデジタル保護継電装置。 2. The digital protection relay according to claim 1, wherein the test result based on the voltage / current supplied from the voltage / current generator can be taken into the information processing apparatus connected to the second test terminal. Electrical equipment. 前記リレー要素の試験結果は、前記情報処理装置に接続可能な出力端子を介して、又は、前記第２のテスト端子を介して前記情報処理装置に取り込み可能であることを特徴とする請求項１記載のデジタル保護継電装置。 2. The test result of the relay element can be taken into the information processing apparatus via an output terminal connectable to the information processing apparatus or via the second test terminal. The digital protective relay device described. 電力系統からの電気量を入力する入力変換器と、前記入力変換器で入力されたアナログ量をデジタル量に変換するＡ／Ｄ変換器と、前記デジタル量によりリレー要素を動作させ、該リレー要素の動作信号を出力するリレー要素演算部と、前記リレー要素演算部で演算されたリレー動作信号に基づいてシーケンス処理を実行するシーケンス処理部と、前記シーケンス処理の結果を出力する出力処理部とを有するデジタル保護継電装置の試験方法において、
前記入力変換器の入力側に電圧・電流発生器を接続して試験用の電圧、電流を与えることで前記入力変換器の健全性を確認する第１の試験ステップと、
前記Ａ／Ｄ変換器と前記リレー要素演算部との間に情報処理装置を接続して試験用のデジタル量を与えることで前記リレー要素の試験を行う第２の試験ステップと
を具備することを特徴とするデジタル保護継電装置の試験方法。 An input converter for inputting an electric quantity from an electric power system, an A / D converter for converting an analog quantity inputted by the input converter into a digital quantity, and operating a relay element by the digital quantity, the relay element A relay element calculation unit that outputs an operation signal of the above, a sequence processing unit that executes sequence processing based on the relay operation signal calculated by the relay element calculation unit, and an output processing unit that outputs a result of the sequence processing In the test method of the digital protective relay device having,
A first test step of confirming the soundness of the input converter by connecting a voltage / current generator to the input side of the input converter and applying a test voltage and current;
A second test step of testing the relay element by connecting an information processing device between the A / D converter and the relay element computing unit to give a digital quantity for testing. A test method for a digital protective relay device, which is characterized. 前記入力変換器の健全性の確認は、前記Ａ／Ｄ変換器と前記リレー要素演算部との間に接続される前記情報処理装置で確認することを特徴とする請求項４記載のデジタル保護継電装置の試験方法。 5. The digital protection relay according to claim 4, wherein the soundness of the input converter is confirmed by the information processing apparatus connected between the A / D converter and the relay element calculation unit. Testing method for electrical equipment. 前記リレー要素の試験結果は、前記Ａ／Ｄ変換器と前記リレー要素演算部との間に接続される前記情報処理装置に、試験結果情報を取り込んで表示させることを特徴とする請求項４記載のデジタル保護継電装置の試験方法。 5. The test result of the relay element is captured and displayed on the information processing apparatus connected between the A / D converter and the relay element calculation unit. Test method for digital protective relay device.
JP2008006473A 2008-01-16 2008-01-16 Digital protective relay device and test method thereof Active JP5252930B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008006473A JP5252930B2 (en) 2008-01-16 2008-01-16 Digital protective relay device and test method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008006473A JP5252930B2 (en) 2008-01-16 2008-01-16 Digital protective relay device and test method thereof

Publications (2)

Publication Number Publication Date
JP2009171722A true JP2009171722A (en) 2009-07-30
JP5252930B2 JP5252930B2 (en) 2013-07-31

Family

ID=40972271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008006473A Active JP5252930B2 (en) 2008-01-16 2008-01-16 Digital protective relay device and test method thereof

Country Status (1)

Country Link
JP (1) JP5252930B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012249387A (en) * 2011-05-26 2012-12-13 Toshiba Corp Power system protection control system, test method, protection control device, merging unit, and test device
CN103576037A (en) * 2013-11-26 2014-02-12 国家电网公司 Testing method based on intelligent testing platform of hydraulic generator microprocessor protection device
US11101635B2 (en) 2017-03-10 2021-08-24 Korea Electric Power Corporation Protective relay test equipment operation device and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01146732U (en) * 1988-03-14 1989-10-11
JPH07308018A (en) * 1994-05-12 1995-11-21 Hitachi Ltd Automatic supervisory circuit having failure locating function
JPH08317544A (en) * 1995-05-15 1996-11-29 Mitsubishi Electric Corp Digital relay, its testing method and test signal generator
JP2000184574A (en) * 1998-12-18 2000-06-30 Toshiba Eng Co Ltd Protective relay device
JP2000209767A (en) * 1999-01-12 2000-07-28 Takaoka Electric Mfg Co Ltd Analog input section monitoring device for digital protective controller

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01146732U (en) * 1988-03-14 1989-10-11
JPH07308018A (en) * 1994-05-12 1995-11-21 Hitachi Ltd Automatic supervisory circuit having failure locating function
JPH08317544A (en) * 1995-05-15 1996-11-29 Mitsubishi Electric Corp Digital relay, its testing method and test signal generator
JP2000184574A (en) * 1998-12-18 2000-06-30 Toshiba Eng Co Ltd Protective relay device
JP2000209767A (en) * 1999-01-12 2000-07-28 Takaoka Electric Mfg Co Ltd Analog input section monitoring device for digital protective controller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012249387A (en) * 2011-05-26 2012-12-13 Toshiba Corp Power system protection control system, test method, protection control device, merging unit, and test device
CN103576037A (en) * 2013-11-26 2014-02-12 国家电网公司 Testing method based on intelligent testing platform of hydraulic generator microprocessor protection device
US11101635B2 (en) 2017-03-10 2021-08-24 Korea Electric Power Corporation Protective relay test equipment operation device and method

Also Published As

Publication number Publication date
JP5252930B2 (en) 2013-07-31

Similar Documents

Publication Publication Date Title
JP2009171723A (en) Test instrument for digital protective relay
EP2365348B1 (en) Monitoring apparatus for current transformer
WO2014027571A1 (en) Digital protection relay, digital protection relay test device, and method for testing digital protection relay
JP5791796B2 (en) Protection relay operation test system
KR20190019377A (en) fault simulator for protection relay and method
JP5252930B2 (en) Digital protective relay device and test method thereof
KR102462925B1 (en) Protective Relay Characteristics Test System
KR101787885B1 (en) Voltage Measurement Error Compensation Device
US9041383B2 (en) Method and device for linearizing a transformer
CN111030038B (en) Power system relay protection setting value checking method
JP2007236101A (en) Test apparatus and test method of independent operation detector
EP2378295A9 (en) Method and arrangement for voltage measurement
KR100886474B1 (en) Protective relay equipment
CN116997806A (en) Insulation resistance monitoring device
JPH08114634A (en) Contact resistance measuring device
JP5415473B2 (en) Reactive power measurement system
JP2014215277A (en) Oscilloscope device and power system monitoring system
JP2755697B2 (en) Protective relay
JP2004007921A (en) Inspection test device of digital form protection relay system
JP6689217B2 (en) Analog input circuit and protective relay
JPH11118862A (en) Protective relay
JP5100793B2 (en) Switching method of measuring device
JPH06351149A (en) Digital protective relay
JP4738288B2 (en) Distribution system ground fault protective relay device
CN116008683A (en) Automatic voltage phase checking device and method for transformer substation

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20101101

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120709

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120801

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120828

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20130410

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20130416

R150 Certificate of patent or registration of utility model

Ref document number: 5252930

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20160426

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250