JP2004077251A - Performance test system of protection relay - Google Patents

Performance test system of protection relay Download PDF

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Publication number
JP2004077251A
JP2004077251A JP2002236769A JP2002236769A JP2004077251A JP 2004077251 A JP2004077251 A JP 2004077251A JP 2002236769 A JP2002236769 A JP 2002236769A JP 2002236769 A JP2002236769 A JP 2002236769A JP 2004077251 A JP2004077251 A JP 2004077251A
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Japan
Prior art keywords
relay
test
protection relay
protection
control
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JP2002236769A
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Japanese (ja)
Inventor
Naoya Morohashi
諸橋 直哉
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Meidensha Corp
株式会社明電舎
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Priority to JP2002236769A priority Critical patent/JP2004077251A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a performance test system of protection relays for accurately and safely implementing a performance test of the protection relays respectively built in a plurality of distribution panels in a short time. <P>SOLUTION: In the distribution panels 10<SB>1</SB>to 10<SB>N</SB>, measured signals are inputted from continuous measuring instruments 3, 4 to the protection relay 1. Control relays 11 to 13 are provided, input a performance test input from the outside of the distribution panel to the protection relay and pull out a performance output to the outside of the distribution panel when the operation test is implemented. A protection relay tester 14 generates a performance test voltage/current and obtains the performance output. A sequencer 17 applies the performance test input from the protection relay tester in order of relay elements under control of the control relays. The protection relay tester inputs the performance output. A controller 14A controls the generation of the performance test voltage/current and measures a performance output time. A personal computer 15 generates a test start command and a test end command in order of the relay elements and stores an performance output time data. A printer 16 prints the data. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、受配電盤保護リレーの動作試験システムに関する。
【0002】
【従来の技術】
図3は、一般的な受配電盤保護リレーの結線図を示す。保護リレー1は受配電母線2に接続される変成器(PT)3と変流器(CT)4からの変成電圧および電流を取り込み、これら電圧と電流から不足電圧リレー要素による保護演算と過電流リレー要素による保護演算を行い、それぞれの演算結果で保護を必要とするときにしゃ断器トリップなどの動作出力を得る。
【0003】
この保護リレー1の動作試験には、保護リレー試験器5を用意し、変成器端子(PTT)6と変流器端子(CTT)7に試験プラグを差し、端子6、7の一次側切り離し操作を行う。この後、端子6、7には試験器5に内蔵する電圧発生源と電流発生源との接続操作を行う。また、保護リレー1の動作信号出力端子に保護リレー試験器5の動作信号入力端子に接続する。
【0004】
これら試験準備操作を行った後、保護リレー試験器5の電圧発生源の出力電圧調整スイッチを操作することで保護リレー1に試験電圧を入力し、このときの保護リレー1の動作出力の変化から不足電圧リレー要素の正常/異常のチェックを行う。同様に、保護リレー試験器5の電流発生源の出力電流を複数段に切り替える電流調整スイッチを操作することで保護リレー1に試験電流を入力し、各電流に対する保護リレー1の動作出力の変化から過電流リレー要素の動特性チェックを行う。
【0005】
【発明が解決しようとする課題】
従来の保護リレーの試験方法は、受配電盤と保護リレー試験器との間の端子接続と試験電圧・電流調整という一連の手順操作を試験員がすべて手動操作で行うため、長い試験時間を要する。特に、受配電盤面数が多い場合には非常に長い試験時間になり、非効率的な試験方法であった。
【0006】
また、保護リレーの試験には、取り扱いに精通したものでないと、感電事故や不正な試験をしてしまう問題があった。
【0007】
また、接続操作で誤接続した場合、主回路機器あるいは保護リレーを破損させる可能性があった。
【0008】
本発明の目的は、上記の課題を解決した保護リレーの動作試験システムを提供することにある。
【0009】
【課題を解決するための手段】
本発明は、前記の課題を解決するため、保護リレーに対する計測入力と保護リレー試験器からのリレー要素別の動作試験入力との自動的順次切り替えと、保護リレーからの動作出力の自動取得を制御リレーとシーケンサで順次制御し、これらの動作試験入力の自動調整とリレー要素別の動作時間計測をコントローラで順次制御し、これら自動切り替えと動作時間計測をコンピュータから指令するシステム構成としたもので、以下の構成を特徴とする。
【0010】
(1)受配電盤に内蔵する保護リレーの動作試験システムであって、
前記受配電盤は、常時は受配電母線の電圧・電流を計測する計測器の計測信号を前記保護リレーに入力し、動作試験時には前記計測信号に代えて盤外部からの動作試験入力を該保護リレーに入力しかつ動作出力を盤外部に引き出す制御リレーを設け、
前記受配電盤に接続され、前記保護リレーの動作試験電圧および電流を発生する手段と、該保護リレーの動作出力を取得する手段とを有する保護リレー試験器と、
前記受配電盤に接続され、前記制御リレーのオン・オフ制御によって前記保護リレーのリレー要素順に前記保護リレー試験器からの動作試験入力を印加させ、このときの該保護リレーからの動作出力を該保護リレー試験器に入力するシーケンサと、
前記受配電盤に接続され、前記保護リレー試験器からの動作試験電圧および電流の発生を制御する手段と、前記動作出力の時間を計測する手段とを有するコントローラと、
前記コントローラおよびシーケンサに対するリレー要素順の試験開始指令と試験終了指令を発生し、前記コントローラが計測した動作出力の時間データを記憶および印字させるコンピュータとを備えたことを特徴とする。
【0011】
(2)前記シーケンサは、前記制御リレーのオン・オフ制御に際して、該リレーの接点状態からその動作確認を行う手段を備えたことを特徴とする。
【0012】
【発明の実施の形態】
図1は、本発明の実施形態を示すシステム構成図であり、図3と同等のものは同一符号で示す。
【0013】
N台の受配電盤10〜10は、受配電盤10に代表して示すように、盤外部からオン・オフ制御できる3つの制御リレー11〜13を設ける。
【0014】
制御リレー11は、保護リレー1の動作出力を盤外部に引き出すための接点aを有する。制御リレー12は、保護リレー1への電圧入力を、常時は変成器3からの計測信号を入力し、これを動作試験時には外部入力に切り替える接点bを有する。制御リレー13は、保護リレー1への電流入力を、常時は変流器4からの計測信号を入力し、これを動作試験時には外部入力に切り替える接点cを有する。さらに、各制御リレー11〜13は、そのオン・オフ動作を確認するための出力を盤外部にそれぞれ引き出すための接点a,b,cを有する。
【0015】
保護リレー試験装置は、保護リレー試験器14と、そのコントローラ14Aと、リレー試験のソフトウェアおよび記憶装置を搭載するパソコン(PC)15と、試験結果を印字するプリンタ16および制御リレー11〜13を制御するシーケンサ17で構成される。
【0016】
保護リレー試験器14は、従来の保護リレー試験器5と同等に、保護リレー1に対する試験電圧・電流発生源の出力調整回路と保護リレー1からの動作出力の入力回路を有する。コントローラ14Aは、保護リレー試験器14の出力調整回路の自動制御および動作信号入力回路の自動制御を行う。
【0017】
パソコン15は、コントローラ14Aへの制御指令および動作出力入力指令を発生し、またシーケンサ17へのシーケンス制御指令を発生し、さらにプリンタ16への印字制御指令を発生する。
【0018】
なお、保護リレー試験器14とシーケンス17は各受配電盤10〜10と予め接続され、この接続には盤位置で有線接続または遠隔位置で無線接続とする。また、パソコン15は、リレー試験専用装置としてシーケンス17等と一緒に配置するが、管理室側の受配電監視制御用コンピュータの遠方監視制御機能の一部として設けることができる。
【0019】
以上の構成になるシステム構成により、各受配電盤10〜10のN個の保護リレー1の一連の動作試験を自動で行う。これを図2の制御フローを参照して以下に詳細に説明する。
【0020】
まず、パソコン15からシーケンサ17に対して自動試験開始指令を伝送する(S1)。この指令により、シーケンサ17はソフトウェア構成の盤面数カウンタ(初期値0)に1を足し、No.1の受配電盤10を動作試験対象として設定する(S2)。
【0021】
次に、シーケンサ17は、盤面数カウンタの値が(N+1)か否かをチェックし(S3)、このカウンタの値が1にあるため、受配電盤10の制御リレー11をオン制御し(S4)、このオン制御が正常になされたか否かを接点aの出力からチェックし(S5)、正常であれば受配電盤10の制御リレー12をオン制御し(S6)、このオン制御が正常になされたか否かを接点bの出力からチェックする(S7)。
【0022】
これら一連の制御により、受配電盤10の制御リレー11と12のオン制御とその正常動作確認がなされることで、保護リレー1の不足電圧リレー要素に対する動作試験準備を完了する。
【0023】
この準備完了で、パソコン15は、不足電圧リレー要素の動作試験指令をコントローラ14Aに伝送する(S8)。
【0024】
次に、コントローラ14Aは、保護リレー試験器14に対して、受配電母線2の定格電圧110Vを電圧発生源から発生させ(S9)、この後に電圧発生源の出力電圧を0V(または不足電圧リレー要素が動作する低い電圧)まで急変させ(S10)、この電圧印加から電圧急変までの保護リレー1の動作出力の時間計測を行う(S11)。
【0025】
これら一連の制御により、保護リレー1の不足電圧リレー要素の動作試験が完了し、この試験結果はコントローラ14Aからパソコン15に伝送する。
【0026】
この試験結果が伝送されたパソコン15は、そのデータを記憶すると共にプリンタ16等で印字させるという、不足電圧リレー要素の試験終了処理を行う(S12)。
【0027】
次に、シーケンサ17は、受配電盤10の制御リレー12をオフ制御すると共に制御リレー13をオン制御し(S13)、これらオフ制御とオン制御が正常になされたか否かを接点bとcの出力からチェックする(S14)。
【0028】
これら一連の制御により、受配電盤10の制御リレー11と13のオン制御で、保護リレー1の過電流リレー要素に対する動作試験準備を完了する。
【0029】
この準備完了で、パソコン15は、過電流リレー要素の動作試験指令をコントローラ14Aに伝送する(S15)。
【0030】
次に、コントローラ14Aは、保護リレー試験器14に対して、受配電母線2の定格電流の200%電流を電流発生源から発生させ(S16)、このときの保護リレー試験器14の動作出力から過電流リレー要素の動作時間を計測する(S17)。同様に、コントローラ14Aは、保護リレー試験器14に対して、受配電母線2の定格電流の300%電流、500%電流、瞬時110%電流の発生と、それぞれの試験電流での動作時間を計測する(S18〜S23)。
【0031】
この試験結果が伝送されたパソコン15は、そのデータを記憶すると共にプリンタ16等で印字させるという、過電流リレー要素の試験終了処理を行う(S24)。
【0032】
次に、シーケンサ17は、受配電盤10の制御リレー11と13をオフ制御し(S25)、これらオフ制御が正常になされたか否かを接点aとcの出力からチェックする(S26)。このオフ制御が正常になされたとき、シーケンサ17は、次の受配電盤10の動作試験に進むため、盤面数カウンタの値を+1する処理S2に戻る。これにより、本システムは、処理S3〜S26までの実行に入る繰り返し制御を行い、N台の受配電盤について、それぞれの保護リレー1の動作試験を自動で行う。
【0033】
なお、本実施形態では、不足電圧リレー要素と過電流リレー要素をもつ保護リレーの動作試験対象とするが、保護リレーが過電圧リレー要素など、他のリレー要素をもつ保護リレーの動作試験に適用して同等の作用効果を得ることができる。
【0034】
【発明の効果】
以上のとおり、本発明によれば、保護リレーに対する計測入力と保護リレー試験器からのリレー要素別の動作試験入力との自動的順次切り替えと、保護リレーからの動作出力の自動取得を制御リレーとシーケンサで順次制御し、これらの動作試験入力の自動調整とリレー要素別の動作時間計測をコントローラで順次制御し、これら自動切り替えと動作時間計測をコンピュータから指令するシステム構成としたため、コンピュータ上で試験開始指令を行う1回のボタン操作のみで全数の受配電盤の保護リレーの正確な動作試験ができ、しかも試験時間を大幅に短縮できる。また、試験員は試験器の取り扱いに精通していなくとも、さらに一人で十分であるし、受配電盤から離れた位置での動作試験になって感電事故等の問題も解消される。
【図面の簡単な説明】
【図1】本発明の実施形態を示すシステム構成図。
【図2】実施形態の処理フロー。
【図3】従来の動作試験装置の構成図。
【符号の説明】
1…保護リレー
2…受配電母線
11〜13…制御リレー
14…保護リレー試験器
14A…コントローラ
15…パソコン
16…プリンタ
17…シーケンサ
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an operation test system for a power distribution board protection relay.
[0002]
[Prior art]
FIG. 3 shows a connection diagram of a general power distribution board protection relay. The protection relay 1 takes in transformed voltages and currents from a transformer (PT) 3 and a current transformer (CT) 4 connected to the power receiving / distributing bus 2, and performs protection calculation by an undervoltage relay element and overcurrent from these voltages and currents. A protection operation is performed by a relay element, and when a result of each operation requires protection, an operation output such as a circuit breaker trip is obtained.
[0003]
For the operation test of the protection relay 1, a protection relay tester 5 is prepared, a test plug is inserted into the transformer terminal (PTT) 6 and the current transformer terminal (CTT) 7, and the primary side disconnection operation of the terminals 6, 7 is performed. I do. After that, the terminals 6 and 7 are connected to the voltage generator and the current generator built in the tester 5. Also, the operation signal output terminal of the protection relay 1 is connected to the operation signal input terminal of the protection relay tester 5.
[0004]
After performing these test preparation operations, the test voltage is input to the protection relay 1 by operating the output voltage adjustment switch of the voltage generation source of the protection relay tester 5, and the change in the operation output of the protection relay 1 at this time is obtained. Check whether the undervoltage relay element is normal or abnormal. Similarly, a test current is input to the protection relay 1 by operating a current adjustment switch that switches the output current of the current generation source of the protection relay tester 5 to a plurality of stages, and a change in the operation output of the protection relay 1 for each current is obtained. Check the dynamic characteristics of the overcurrent relay element.
[0005]
[Problems to be solved by the invention]
The conventional method of testing a protection relay requires a long test time because the tester manually performs a series of procedures such as terminal connection between a power distribution board and a protection relay tester and test voltage / current adjustment. In particular, when the number of power receiving and distributing panels is large, the test time becomes very long, which is an inefficient test method.
[0006]
In addition, in the test of the protection relay, there is a problem that an electric shock accident or an improper test is performed if the user is not familiar with the handling.
[0007]
In addition, if the connection operation is incorrectly performed, the main circuit device or the protection relay may be damaged.
[0008]
An object of the present invention is to provide a protection relay operation test system that solves the above-mentioned problems.
[0009]
[Means for Solving the Problems]
The present invention, in order to solve the above-mentioned problems, controls automatic sequential switching between a measurement input to a protection relay and an operation test input for each relay element from a protection relay tester, and automatically obtains an operation output from the protection relay. A relay and a sequencer are sequentially controlled, the automatic adjustment of these operation test inputs and the operation time measurement for each relay element are sequentially controlled by a controller, and the automatic switching and the operation time measurement are commanded from a computer. It is characterized by the following configuration.
[0010]
(1) An operation test system for a protection relay built into a power distribution panel,
The power distribution panel always inputs a measurement signal of a measuring instrument for measuring the voltage and current of the power distribution bus to the protection relay, and performs an operation test input from outside the panel instead of the measurement signal during an operation test. A control relay to input to the
A protection relay tester that is connected to the power distribution panel and that generates an operation test voltage and current of the protection relay, and a unit that obtains an operation output of the protection relay;
An operation test input from the protection relay tester is connected to the power receiving and distributing panel in the relay element order of the protection relay by on / off control of the control relay, and the operation output from the protection relay at this time is protected. A sequencer for input to the relay tester,
A controller that is connected to the power distribution panel and that controls generation of an operation test voltage and current from the protection relay tester, and a unit that measures time of the operation output,
A computer that generates a test start command and a test end command in the order of relay elements to the controller and the sequencer, and stores and prints time data of an operation output measured by the controller.
[0011]
(2) The sequencer is characterized in that, at the time of on / off control of the control relay, there is provided means for confirming the operation from the contact state of the relay.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a system configuration diagram showing an embodiment of the present invention, and components equivalent to those in FIG. 3 are denoted by the same reference numerals.
[0013]
Power distributor 10 1 to 10 N of the N block, as representatively shown in the power distributor 10 1, providing three control relays 11 to 13 can on-off control from Bangaibu.
[0014]
Control relay 11 has a contact a 1 for extracting the operation output of the protection relay 1 to Bangaibu. Control relay 12, the voltage input to the protective relay 1, normally enter the measurement signals from the transformer 3 has a contact b 1 to switch to the external input is this during the operation test. Control relay 13, the current input to the protective relay 1, normally enter the measurement signal from the current transformer 4, having contacts c 1 to switch to the external input is this during the operation test. Further, each of the control relays 11 to 13 has contacts a 2 , b 2 , and c 2 for drawing outputs for checking the on / off operation to the outside of the panel.
[0015]
The protection relay test apparatus controls a protection relay tester 14, its controller 14A, a personal computer (PC) 15 on which relay test software and a storage device are mounted, a printer 16 for printing test results, and control relays 11 to 13. And a sequencer 17.
[0016]
The protection relay tester 14 has an output adjustment circuit of a test voltage / current generation source for the protection relay 1 and an input circuit of an operation output from the protection relay 1, similarly to the conventional protection relay tester 5. The controller 14A performs automatic control of the output adjustment circuit of the protection relay tester 14 and automatic control of the operation signal input circuit.
[0017]
The personal computer 15 generates a control command and an operation output input command to the controller 14A, generates a sequence control command to the sequencer 17, and further generates a print control command to the printer 16.
[0018]
The protective relay tester 14 and sequence 17 is pre-connected to each power distributor 10 1 to 10 N, in this connection, and wireless connection wired or remote location at board position. Further, the personal computer 15 is arranged as a dedicated device for the relay test together with the sequence 17 and the like, but can be provided as a part of the remote monitoring control function of the power receiving / distribution monitoring / control computer on the management room side.
[0019]
The system configuration including the above configuration, a series of operational tests of the N protection relay 1 of the power distributor 10 1 to 10 N automatically. This will be described in detail below with reference to the control flow of FIG.
[0020]
First, an automatic test start command is transmitted from the personal computer 15 to the sequencer 17 (S1). With this command, the sequencer 17 adds 1 to the board number counter (initial value 0) of the software configuration, and Setting the power distributor 10 1 1 as an operation test subject (S2).
[0021]
Next, the sequencer 17, the value of the board number counter (N + 1) whether checked (S3), the value of the counter is due to the 1, on-controlled control relay 11 of the power distributor 10 1 (S4 ), whether the on control is normally performed by checking the output contact a 2 (S5), and on controlling the power distributor 10 the first control relay 12 if normal (S6), the on-control is normal Check whether made from the output of the contact b 2 (S7).
[0022]
These series of control, that power distributor 10 1 of control relay 11 and 12 on control and its normal operation confirmation is made, completes the operation test preparation for undervoltage relay element of the protective relay 1.
[0023]
When the preparation is completed, the personal computer 15 transmits an operation test command for the undervoltage relay element to the controller 14A (S8).
[0024]
Next, the controller 14A causes the protection relay tester 14 to generate the rated voltage 110V of the power receiving / distributing bus 2 from the voltage generation source (S9), and thereafter, the output voltage of the voltage generation source to 0V (or the undervoltage relay). The voltage is suddenly changed to a low voltage at which the element operates (S10), and the time of the operation output of the protection relay 1 from the voltage application to the sudden voltage change is measured (S11).
[0025]
With these series of controls, the operation test of the undervoltage relay element of the protection relay 1 is completed, and the test result is transmitted from the controller 14A to the personal computer 15.
[0026]
The personal computer 15 to which the test result has been transmitted performs an undervoltage relay element test termination process of storing the data and printing the data on the printer 16 or the like (S12).
[0027]
Next, the sequencer 17 turns on the control a control relay 13 turns off controls the control relay 12 of the power distributor 10 1 (S13), whether the contact b 2 and c these off control and on the control has been made successfully Check from the output of No. 2 (S14).
[0028]
These series of control, on-control of the power distributor 10 1 of control relay 11 and 13, completes the operation test preparation for overcurrent relay element of the protective relay 1.
[0029]
When the preparation is completed, the personal computer 15 transmits an operation test command for the overcurrent relay element to the controller 14A (S15).
[0030]
Next, the controller 14A causes the protection relay tester 14 to generate a current of 200% of the rated current of the power receiving / distributing bus 2 from the current source (S16), and from the operation output of the protection relay tester 14 at this time. The operation time of the overcurrent relay element is measured (S17). Similarly, the controller 14A causes the protection relay tester 14 to generate 300% current, 500% current, and instantaneous 110% current of the rated current of the power receiving / distributing bus 2, and measure the operation time at each test current. (S18 to S23).
[0031]
The personal computer 15 to which the test result is transmitted performs a test termination process of the overcurrent relay element, in which the data is stored and printed by the printer 16 or the like (S24).
[0032]
Next, the sequencer 17 turns off controls the control relay 11 and 13 of the power distributor 10 1 (S25), these off control to check whether made normally from the output contact a 2 and c 2 (S26) . When the off control is normally performed, the sequencer 17, to proceed to operation test of the next power distributor 10 2, the flow returns to step S2 to +1 values of board counter. As a result, the present system performs repetitive control to enter the execution of processes S3 to S26, and automatically performs an operation test of each protection relay 1 for the N power distribution boards.
[0033]
In this embodiment, the operation test of the protection relay having the undervoltage relay element and the overcurrent relay element is performed, but the protection relay is applied to the operation test of the protection relay having another relay element such as the overvoltage relay element. The same operation and effect can be obtained.
[0034]
【The invention's effect】
As described above, according to the present invention, the control relay automatically switches between the measurement input to the protection relay and the operation test input for each relay element from the protection relay tester, and automatically obtains the operation output from the protection relay. The sequencer controls the operation sequentially, and the automatic adjustment of these operation test inputs and the operation time measurement for each relay element are sequentially controlled by the controller.The system is configured so that these automatic switching and operation time measurement are instructed from a computer. An accurate operation test of the protection relays of all the power distribution boards can be performed with only one button operation for issuing a start command, and the test time can be greatly reduced. Further, even if the tester is not familiar with the handling of the test equipment, it is sufficient for the tester to be alone, and the operation test is performed at a position away from the power distribution panel, so that the problem such as an electric shock accident is solved.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram showing an embodiment of the present invention.
FIG. 2 is a processing flow of the embodiment.
FIG. 3 is a configuration diagram of a conventional operation test apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Protection relay 2 ... Power distribution bus 11-13 ... Control relay 14 ... Protection relay tester 14A ... Controller 15 ... Personal computer 16 ... Printer 17 ... Sequencer

Claims (2)

  1. 受配電盤に内蔵する保護リレーの動作試験システムであって、
    前記受配電盤は、常時は受配電母線の電圧・電流を計測する計測器の計測信号を前記保護リレーに入力し、動作試験時には前記計測信号に代えて盤外部からの動作試験入力を該保護リレーに入力しかつ動作出力を盤外部に引き出す制御リレーを設け、
    前記受配電盤に接続され、前記保護リレーの動作試験電圧および電流を発生する手段と、該保護リレーの動作出力を取得する手段とを有する保護リレー試験器と、
    前記受配電盤に接続され、前記制御リレーのオン・オフ制御によって前記保護リレーのリレー要素順に前記保護リレー試験器からの動作試験入力を印加させ、このときの該保護リレーからの動作出力を該保護リレー試験器に入力するシーケンサと、
    前記受配電盤に接続され、前記保護リレー試験器からの動作試験電圧および電流の発生を制御する手段と、前記動作出力の時間を計測する手段とを有するコントローラと、
    前記コントローラおよびシーケンサに対するリレー要素順の試験開始指令と試験終了指令を発生し、前記コントローラが計測した動作出力の時間データを記憶および印字させるコンピュータとを備えたことを特徴とする保護リレーの動作試験システム。
    An operation test system for a protection relay built in a power distribution panel,
    The power distribution panel always inputs a measurement signal of a measuring instrument for measuring the voltage and current of the power distribution bus to the protection relay, and performs an operation test input from outside the panel instead of the measurement signal during an operation test. A control relay to input to the
    A protection relay tester that is connected to the power distribution panel and that generates an operation test voltage and current of the protection relay, and a unit that obtains an operation output of the protection relay;
    An operation test input from the protection relay tester is connected to the power receiving and distributing panel in the relay element order of the protection relay by on / off control of the control relay, and the operation output from the protection relay at this time is protected. A sequencer for input to the relay tester,
    A controller that is connected to the power distribution panel and that controls generation of an operation test voltage and current from the protection relay tester, and a unit that measures time of the operation output,
    A computer for generating a test start command and a test end command in the order of relay elements to the controller and the sequencer, and storing and printing time data of the operation output measured by the controller. system.
  2. 前記シーケンサは、前記制御リレーのオン・オフ制御に際して、該リレーの接点状態からその動作確認を行う手段を備えたことを特徴とする請求項1に記載の保護リレーの動作試験システム。2. The operation test system for a protection relay according to claim 1, wherein the sequencer includes means for checking the operation of the control relay based on a contact state of the relay when the control relay is turned on / off.
JP2002236769A 2002-08-15 2002-08-15 Performance test system of protection relay Pending JP2004077251A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007312445A (en) * 2006-05-15 2007-11-29 Gs Yuasa Corporation:Kk Management system for insulation monitoring device
JP2010220302A (en) * 2009-03-13 2010-09-30 Toshiba Corp Protective relay
JP2010230675A (en) * 2010-04-05 2010-10-14 Chubu Electric Power Co Inc Method for inspection of relay
JP2010277749A (en) * 2009-05-27 2010-12-09 Kaiei Denki:Kk Failure diagnostic device of control panel
JP2012182905A (en) * 2011-03-01 2012-09-20 Chugoku Electric Power Co Inc:The Diagnostic apparatus for protective relay
KR101507297B1 (en) 2014-11-04 2015-04-08 정인 Apparatus for testing Relay
KR101575806B1 (en) * 2015-05-22 2015-12-21 주식회사 한빛파워 Ground relay test equipment
CN105929287A (en) * 2016-07-01 2016-09-07 国网浙江省电力公司杭州供电公司 DTU test simulator and DTU test system
JP2016217835A (en) * 2015-05-19 2016-12-22 株式会社東芝 Control device of substation facility
KR20190133495A (en) * 2018-05-23 2019-12-03 한국전력공사 Protection and distribution panal with inspection switches

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007312445A (en) * 2006-05-15 2007-11-29 Gs Yuasa Corporation:Kk Management system for insulation monitoring device
JP2010220302A (en) * 2009-03-13 2010-09-30 Toshiba Corp Protective relay
JP2010277749A (en) * 2009-05-27 2010-12-09 Kaiei Denki:Kk Failure diagnostic device of control panel
JP4672785B2 (en) * 2009-05-27 2011-04-20 有限会社海栄電気 Control panel failure diagnosis device
JP2010230675A (en) * 2010-04-05 2010-10-14 Chubu Electric Power Co Inc Method for inspection of relay
JP2012182905A (en) * 2011-03-01 2012-09-20 Chugoku Electric Power Co Inc:The Diagnostic apparatus for protective relay
KR101507297B1 (en) 2014-11-04 2015-04-08 정인 Apparatus for testing Relay
JP2016217835A (en) * 2015-05-19 2016-12-22 株式会社東芝 Control device of substation facility
KR101575806B1 (en) * 2015-05-22 2015-12-21 주식회사 한빛파워 Ground relay test equipment
CN105929287A (en) * 2016-07-01 2016-09-07 国网浙江省电力公司杭州供电公司 DTU test simulator and DTU test system
KR20190133495A (en) * 2018-05-23 2019-12-03 한국전력공사 Protection and distribution panal with inspection switches
KR102066852B1 (en) * 2018-05-23 2020-01-16 한국전력공사 Protection and distribution panal with inspection switches

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