JPH0332317A - Protective relay - Google Patents
Protective relayInfo
- Publication number
- JPH0332317A JPH0332317A JP1164525A JP16452589A JPH0332317A JP H0332317 A JPH0332317 A JP H0332317A JP 1164525 A JP1164525 A JP 1164525A JP 16452589 A JP16452589 A JP 16452589A JP H0332317 A JPH0332317 A JP H0332317A
- Authority
- JP
- Japan
- Prior art keywords
- output
- test signal
- circuit
- generating means
- microcomputer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 9
- 238000012360 testing method Methods 0.000 claims abstract description 64
- 230000005611 electricity Effects 0.000 claims description 13
- 238000012790 confirmation Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 13
- 238000005259 measurement Methods 0.000 abstract 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 7
- 230000005856 abnormality Effects 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は装置自身の動作状態の試験を行うことができる
保護継電装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a protective relay device capable of testing the operating state of the device itself.
（徒来の技術）
送電線なとの′心力系統には、系統の安全運転を保障す
るため、ｌ」的に応じた各種の保護継電装置が用いられ
ている。(Archived technology) Various types of protective relay devices are used in power systems such as power transmission lines to ensure safe operation of the system.
ところで、このような系統に用いられる保護継電装置は
、装置白身の動作状態を試験可能にした機能を備えたも
のはなく、普通は、装置の最終動作を強制的に作り出し
て、外部シーケンスを試験する程度であった。このため
、装置自体の試験については、設備の定期点検の際に専
用の試験器を接続することで実施されることがほとんど
であった。By the way, the protective relay devices used in such systems do not have a function that allows testing the operating state of the device itself, and normally the final operation of the device is forcibly produced and the external sequence is It was just for testing. For this reason, testing of the device itself has mostly been carried out by connecting a dedicated testing device during periodic inspections of the equipment.
（発明が解決しようとする課題）
ところが、保護継電装置の動作を試験するのに、専用の
試験器を用意して実施するのでは、試験器を接続するな
ど試験を実施するまでの段取りに時間と手間がかかり、
作業が面倒になる欠点があった。また、このような専用
の試験器は価格的に高価なものでもある。(Problem to be Solved by the Invention) However, when testing the operation of a protective relay device by preparing a dedicated tester, it is difficult to prepare for the test, such as connecting the tester. It takes time and effort,
There was a drawback that the work was troublesome. Moreover, such a dedicated tester is expensive.
本発明は上記事情に鑑みてなされたもので、装置自身に
より動作状態の試験を行うことかできる保護継電装置を
堤供することをト１的とする。The present invention has been made in view of the above circumstances, and its primary purpose is to provide a protective relay device whose operating state can be tested by the device itself.
［発明の構成コ
（課題を解決するための手段）
本発明は、保護対象の電気量が予め整定された値を越え
ると出力を発生する第１の出力発生手段と、上記保護対
象の電気量が所定以上大きくなると出力を発生する第２
の出力発生手段と、試験信号を発生する試験信号発生手
段と、この試験信号光η−丁段からの試験信号を上５己
第１および第２の出力発生手段の少なくとも一方に与え
る試験信号切替手段と、この試験信号切替手段により試
験信号が与えられる上記第１および第２の出力発生手段
の出力からこれら第１および第２の出力発生手段の動作
状態を確認する動作確認手段とを具備したものである。[Configuration of the Invention (Means for Solving the Problems) The present invention provides a first output generating means that generates an output when the amount of electricity to be protected exceeds a preset value, and the amount of electricity to be protected. A second circuit that generates an output when becomes larger than a predetermined value.
output generation means, test signal generation means for generating a test signal, and test signal switching for applying the test signal from the test signal light to at least one of the first and second output generation means. and operation confirmation means for confirming the operating states of the first and second output generation means from the outputs of the first and second output generation means to which the test signal is applied by the test signal switching means. It is something.
また、本発明は、保護対象の電気量が予め整定された値
を越えると出力を発生する第１の出力発生手段と、上記
保護対象の電気量か所定以上大きくなると出力を発生す
る第２の出力発生手段と、試験信号を発生する試験信号
発生手段と、この試験信号発生手段からの試験信号を上
記第１および第２の出力発生手段の少なくとも一方に与
える試験信号切替手段と、この試験信号切替手段に動作
指令をちえるとともに上記試験信号発生手段より試験信
号がＪ５えられる上記第１および第２の出力発生手段の
出力からこれら第１および第２の出力発生手段の動作状
態を確認する手段を有する遠方監視手段とを具備したも
のである。The present invention also provides a first output generating means that generates an output when the amount of electricity to be protected exceeds a predetermined value, and a second output generating means that generates an output when the amount of electricity to be protected exceeds a predetermined value. an output generating means, a test signal generating means for generating a test signal, a test signal switching means for applying a test signal from the test signal generating means to at least one of the first and second output generating means, and this test signal. An operation command is given to the switching means, and a test signal J5 is received from the test signal generating means.The operating states of the first and second output generating means are confirmed from the outputs of the first and second output generating means. and a remote monitoring means having means.
（作用）
この結果、試験信号切替手段のＱノ替に応じて試験信号
発生手段より試験信号が与えられる第１および第２の出
力発生手段の出力に基づいて、これら第１および第２の
出力発生手段の動作状態を確認できるようになる。また
、これら試験信号切替手段の切替および第１および第２
の出力発生手段の動作状態の確認を離れた場所から行う
こともできる。(Function) As a result, based on the outputs of the first and second output generating means to which the test signal is given by the test signal generating means in response to the Q switching of the test signal switching means, these first and second outputs are It becomes possible to check the operating status of the generating means. In addition, the switching of these test signal switching means and the first and second
It is also possible to check the operating state of the output generating means from a remote location.
（実施例） 以下、本発明の一実施例を図面にしたがい説明する。(Example) An embodiment of the present invention will be described below with reference to the drawings.
第１図は同実施例の回路構成を示すものである。FIG. 1 shows the circuit configuration of the same embodiment.
図において、１は電力系統で、この電力系統１に変流器
２を接続している。変流器２の出力側に補助変流器３を
接続している。この補助変流器３は変流器２の２次電流
を検出するものである。そして、補助変流器３の出力側
に抵抗４を接続している。この抵抗４は補助変流器３の
２次電流を電圧に変換するものである。In the figure, 1 is a power system, and a current transformer 2 is connected to this power system 1. An auxiliary current transformer 3 is connected to the output side of the current transformer 2. This auxiliary current transformer 3 detects the secondary current of the current transformer 2. A resistor 4 is connected to the output side of the auxiliary current transformer 3. This resistor 4 converts the secondary current of the auxiliary current transformer 3 into voltage.
抵抗４の出力は動作値比較回路５に与えられる。The output of the resistor 4 is given to the operating value comparison circuit 5.
この動作値比較回路５は電力系統］の電気量に応じた抵
抗４の電圧値が予め設定された整定値を越えると出力を
発生するようにしている。そして、この動作値比較回路
５の出力はマイクロコンピュータ６に入力される。The operating value comparison circuit 5 generates an output when the voltage value of the resistor 4, which corresponds to the amount of electricity in the power system, exceeds a preset value. The output of this operating value comparison circuit 5 is input to the microcomputer 6.
抵抗４の出力は増幅回路７に与えられる。この増幅回路
７は抵抗４の電圧出力を増幅するようにしている。そし
て、増幅回路７の出力はＡ／Ｄ変換回路８に与えられ、
ここでデジタル信号に変換されたのち、マイクロコンピ
ュータ６に人力される。The output of resistor 4 is given to amplifier circuit 7. This amplifier circuit 7 is designed to amplify the voltage output of the resistor 4. Then, the output of the amplifier circuit 7 is given to the A/D conversion circuit 8,
Here, after being converted into a digital signal, it is manually input to the microcomputer 6.
一方、９は試験信号発生回路で、この試験信号発生回路
９は試験用信号を出力するものである。On the other hand, 9 is a test signal generation circuit, and this test signal generation circuit 9 outputs a test signal.
そして、この試験用信号はスイッチ部１０のスイッチ１
０１．１０２を各別に介して上記動作値比較回路５およ
び増幅回路７に与えられる。この場合の試験用信号は電
力系統１の異常１１ｊの電気量と同等なものからなって
いる。This test signal is applied to the switch 1 of the switch section 10.
01 and 102 respectively to the operating value comparison circuit 5 and amplifier circuit 7. The test signal in this case consists of a signal equivalent to the amount of electricity of the abnormality 11j of the power system 1.
マイクロコンピュータ６は動作値比較四路５およびＡ／
Ｄ変換回路８の出力から系統異′に（を判定する機能を
有するとともに、これら動作値比較回路５、増幅回路７
およびＡ／Ｄ変換回路８の動作状態を判定する機能をを
している。また、このマイクロコンピュータ６は整定ス
イッチ１１の整定内容によりスイッチ部］０の各スイッ
チ１０１．１０２に対して動作命令を与えるようにして
いる。The microcomputer 6 performs operation value comparison four-way 5 and A/
It has a function of determining whether the system is different from the output of the D conversion circuit 8, and also has the function of determining whether the system is different from the output of the D conversion circuit 8.
It also has the function of determining the operating state of the A/D conversion circuit 8. Further, the microcomputer 6 is configured to give operation commands to the switches 101 and 102 of the switch section 0 according to the setting contents of the setting switch 11.
マイクロコンピュータ６の判定出力は、表示回路１２お
よび出力回路］３に与えられる。ここで、表示囲路１２
はマイクロコンピュータ６で確認された動作値比較回路
５、地部回路７およびＡ／Ｄ変換回路８の動作状態を表
示するようにしている。The determination output of the microcomputer 6 is given to a display circuit 12 and an output circuit]3. Here, the display enclosure 12
displays the operating states of the operating value comparison circuit 5, the ground circuit 7, and the A/D conversion circuit 8, which have been confirmed by the microcomputer 6.
また、出力回路１３はマイクロコンピュータ６により動
作値几較回路５の異常か判定された場合、増幅回路７お
よびＡ／Ｄ変換回路８の異′Ｉ）９が判定された場合に
それぞれ接点１４１を閉して警報を発生させるようにし
ている。また、出力回路１３はマイクロコンピュータ６
が動作値比較回路５およびＡ／Ｄ変換回路８から同１４
ｊに出力か与えられた場合はしゃ断器をトリップさせる
接点１４２を閉して外部ンーケンス試験を行えるように
している。The output circuit 13 also closes the contact 141 when the microcomputer 6 determines whether the operating value comparison circuit 5 is abnormal or when the amplifier circuit 7 and the A/D conversion circuit 8 are determined to be abnormal. It is designed to close and generate an alarm. Further, the output circuit 13 is a microcomputer 6
is from the operating value comparison circuit 5 and the A/D conversion circuit 8 to the same 14.
When an output is given to j, the contact 142 which trips the circuit breaker is closed so that an external sequence test can be performed.
次に、このよう構成した実施例の動作を説明する。Next, the operation of the embodiment configured as described above will be explained.
電力系統１の電気量は変流器２および補助変流器３を介
して抽出され、抵抗４て電圧値に変換され、動作値比較
回路５および増幅器７に与えられている。ここで、系統
１が正常状態にある場合は、抵抗４の電圧値は十分量さ
い値であり、動作値比較回路５より出力は発生せず、ま
た、Ａ／Ｄ変換回路８のデジタル値は所定以下で、マイ
クロコンピュータ６か系統異常を判定することはない。The amount of electricity in the power system 1 is extracted via a current transformer 2 and an auxiliary current transformer 3, converted into a voltage value by a resistor 4, and provided to an operating value comparison circuit 5 and an amplifier 7. Here, when the system 1 is in a normal state, the voltage value of the resistor 4 is a sufficiently small value, no output is generated from the operating value comparison circuit 5, and the digital value of the A/D conversion circuit 8 is If the value is below a predetermined value, the microcomputer 6 will not determine that there is a system abnormality.
この状態から、系統１に異常が発生し、抵抗４の電圧値
かＪ： ’ｙ（−すると、動作値比較回路５では、予め
設定された整定値を越えた時点で出力を発生する。また
、増幅器７の出力も上昇し、Ａ／Ｄ変換回路８のデジタ
ル値も大きな値となる。これによりマイクロコンピュー
タ６は動作値比較回路５の出力およびＡ／Ｄ変換回路８
のデジタル値の特性演算結果から系統異常を判定する。In this state, an abnormality occurs in the system 1, and when the voltage value of the resistor 4 is J: 'y(-), the operating value comparison circuit 5 generates an output when it exceeds a preset setting value. , the output of the amplifier 7 also rises, and the digital value of the A/D conversion circuit 8 also becomes a large value.As a result, the microcomputer 6 outputs the output of the operating value comparison circuit 5 and the A/D conversion circuit 8.
A system abnormality is determined from the characteristic calculation result of the digital value.
そして、マイクロコンピュータ６の系統５“４常の判定
結果か出力回路コ３に与えられと、接点１４２が閉成さ
れ図示しないしゃ断器かトリップされるようになる。Then, when the determination result of the system 5'4 of the microcomputer 6 is applied to the output circuit 3, the contact 142 is closed and a breaker (not shown) is tripped.
次に、装置の試験を実施する場合、整定スイッチ１１よ
り整定内容がマイクロコンピュータ６に与えられる。ま
す、スイッチ部１ｏのスイッチ１０１に動作命令を与え
ると、試験信号発生回路９の試験用信号がスイッチ１．
０１を介して動作値比較回路５に！ｊえられる。すると
、この場合、試験用信号は電力系統１の異常時の電気量
と同文今なものからなっているので、動作値比較回路５
より出力が発生し、この出力に基づいてマイクロコンピ
ュータ６により動作値比較四路５の動作状態が１゛叶定
される。そして、マイクロコンピュータ６での判定出力
は表示回路１２および出力回路１３に＋７．えられるが
、この現金、マイクロコンピュータ６により動作値比較
回路５の動作状態が異常と判定されると、表示凹路１２
にその旨が表示されるとともに、出力回路１３により接
点１４１が閉成されて警報か発生されるようになる。Next, when testing the device, the setting contents are given to the microcomputer 6 from the setting switch 11. First, when an operation command is given to the switch 101 of the switch unit 1o, the test signal of the test signal generation circuit 9 is sent to the switch 1.
01 to the operating value comparison circuit 5! I can get it. In this case, since the test signal is the same as the amount of electricity at the time of abnormality in the power system 1, the operating value comparison circuit 5
An output is generated, and based on this output, the microcomputer 6 determines the operating state of the operating value comparison four-way 5. Then, the judgment output from the microcomputer 6 is sent to the display circuit 12 and the output circuit 13 by +7. However, when the microcomputer 6 determines that the operating state of the operating value comparison circuit 5 is abnormal, the display concave path 12
A message to that effect is displayed, and the output circuit 13 closes the contact 141 to generate an alarm.
次に、マイクロコンピュータ６よりスイッチ部１０のス
イッチ１０２に動作命令を与えると、試験信号発生回路
９の試験用信号がスイッチ１０２を介して増幅回路７に
与えられる。そして、この増幅回路７の出力はＡ／Ｄ変
換回路８に与えられデジタル信号に変換され、マイクロ
コンピー−タロに′ｊえられる。この場合、試験用信号
は電力系統１の異常時の電気量と同等なものからなって
おり、この条件の下でＡ／Ｄ変挽回路８のデジタル値の
特性演算結果から増幅回路７およびＡ／Ｄ変換回路８の
動作状態が判定される。ここで、増幅回路７およびＡ／
Ｄ変挽回路８の動作状態か異常と判断されると、表示回
路１２にその旨が表示されるとともに、出力回路１３に
より接点］４］が開成されて警報か発生されるようにな
る。Next, when the microcomputer 6 gives an operation command to the switch 102 of the switch unit 10, the test signal from the test signal generation circuit 9 is given to the amplifier circuit 7 via the switch 102. The output of the amplifier circuit 7 is then applied to an A/D converter circuit 8, where it is converted into a digital signal and input to a microcomputer. In this case, the test signal is equivalent to the amount of electricity at the time of an abnormality in the power system 1, and under these conditions, the amplifier circuit 7 and the A The operating state of the /D conversion circuit 8 is determined. Here, the amplifier circuit 7 and the A/
When it is determined that the operating state of the D-change circuit 8 is abnormal, the display circuit 12 displays this fact, and the output circuit 13 opens the contact [4] to generate an alarm.
次に、マイクロコンピュータ６よりスイッチ部］０のス
イッチ１０１．１０２に同時に動作命令０
に応して動作時間か文化する特性回路２２を１没けてい
る。そして、動作値比４”２ ｌｉ”ｌ路５の出力を表
示回路１２１、出力回路２３］に与えるどともに、アン
ド回路］８の一方の入力端子に１１え、特性回路２２の
出力を表示回路］２２、出力回路２３２に１ｊえるとと
もに、アンド回路１８の他方の入力端子に５−えるよう
にしている。そして、出力回路２゛３１により接点２４
１、出力１す１踏２３２により接点２４２をそれぞれ閉
じるようにし、また、これらの接点２４］、２４２の状
態を遠方監視装置１７に送るようにしている。また、ア
ンド回路１８の出力を出力１す１路］９にｌｊえ、しゃ
断器をトリップさせる接点２０を閉しるようにして、こ
の接点２０の状態ち遠方監視装置１７にＩＪえるように
している。さらに、遠方監視装置］７によりリレー２５
１．２５２の動作を制御するようにし、これらリレー２
５１．２５２によりスイッチ部１０のスイッチ１０１．
１０２を動作するようにしている。その他は、第２図と
同様であり同一部分には同７：１号を（＝１して説明を
省略する。Next, the microcomputer 6 simultaneously inserts into the switches 101 and 102 of the switch unit 0 a characteristic circuit 22 which determines the operating time in response to the operation command 0. Then, the output of the operating value ratio 4"2 li"l path 5 is given to the display circuit 121 and the output circuit 23, and the output of the characteristic circuit 22 is given to one input terminal of the AND circuit 8, and the output of the characteristic circuit 22 is given to the display circuit 121 and the output circuit 23. ]22, 1j is applied to the output circuit 232, and 5- is applied to the other input terminal of the AND circuit 18. Then, the contact 24 is connected to the output circuit 2'31.
1. The contacts 242 are closed by the output 1 and 1 232, and the states of these contacts 24 and 242 are sent to the remote monitoring device 17. In addition, the output of the AND circuit 18 is connected to the output 1/1 path] 9, and the contact 20 that trips the circuit breaker is closed, so that the state of this contact 20 can be transmitted to the remote monitoring device 17. There is. Furthermore, the relay 25 is
1.252 operations, and these relays 2
51.252, the switch 101. of the switch unit 10 is activated.
102 to operate. The other parts are the same as those in FIG. 2, and the same parts are denoted by No. 7:1 (=1) and the explanation is omitted.
］］
このようにすれば、動作値比較回路５および特性回路２
２の動作状態を表示回路１２１、コー２２により各別に
表示することかできるとともに、出力ロ路２３１．２３
２による接点２４１．２４２の動作により試験結果を得
られ、さらに、上述したと同様な効果に加え、遠く離れ
た所から装置の動作試験を実施することができる。]] In this way, the operating value comparison circuit 5 and the characteristic circuit 2
2 can be displayed separately by the display circuit 121 and the output circuit 22, and the output low path 231.23
Test results can be obtained by operation of the contacts 241, 242 by 2, and in addition to the same effects as described above, the operation of the device can be tested from a distance.
なお、本発明は上記実施例にのみ限定されず、要旨を変
更ｊ〜ない範囲で適宜変形して実施できる。It should be noted that the present invention is not limited only to the above-mentioned embodiments, but can be implemented with appropriate modifications within the scope of the gist.
［発明の効果］
本発明によれば、試験信号切替手段の切替に応にて試験
信号発生手段より試験信号かｌｊえられる上記第１およ
び第２の出力発生平段の出力から、これら第１および第
２の出力発生手段の動作状態を判定できるようしている
ので、装置白身により動作状態の試験を行うことができ
る。また、これら試験信号助長手段の勿賛および狛］お
よび第２の出力発生手段の動作状態の確認を離れた場所
から行うこともできるので、適用可能な範囲を著しく払
大できる。[Effects of the Invention] According to the present invention, from the outputs of the first and second output generation stages, the test signal is generated by the test signal generation means in response to the switching of the test signal switching means. Since the operating state of the second output generating means can be determined, the operating state can be tested using the white of the device. Furthermore, since the operational states of the test signal promoting means and the second output generating means can be checked from a remote location, the range of applicability can be greatly expanded.
］ ６] 6
第１図は本発明の一実施例を示す四路構成図、第２図乃
至昂４図はそれぞれ本発明の異なる他の実施例を示す回
路構成図である。
１・電力系統、２・・・変流器、３・？１１ｊ助変流器
、４・・・抵抗、５・・動作値比較回路、６・・マイク
ロコンピュータ、７・・ｊ曽幅回路、８・・Ａ／Ｄｉ換
回路、９・試験信号発生回路、１０・・スイッチ部、１
０１．１０２・・・スイッチ、１１・・・整定スイッチ
、１２．１２１．１２２・・・表示回路、］］、１つ、
２３１．２３２・・・出力回路、］４］５．１４２．２
４１．２４２・接点、１５ ・インターフェース、１６
・伝送装置、１７・・・遠方監視装置、１８・・アンド
回路、２２・・特性回路、２５１．２５２・・・リレーFIG. 1 is a four-way configuration diagram showing one embodiment of the present invention, and FIGS. 2 to 4 are circuit diagrams showing other different embodiments of the present invention. 1. Power system, 2... Current transformer, 3.? 11j auxiliary current transformer, 4... resistance, 5... operating value comparison circuit, 6... microcomputer, 7... j wide circuit, 8... A/Di conversion circuit, 9... test signal generation circuit, 10...Switch part, 1
01.102...Switch, 11...Setting switch, 12.121.122...Display circuit, ]], one,
231.232...Output circuit, ]4]5.142.2
41.242・Contact, 15・Interface, 16
・Transmission device, 17... Distant monitoring device, 18... AND circuit, 22... Characteristic circuit, 251.252... Relay
Claims (2)
出力を発生する第１の出力発生手段と、上記保護対象の
電気量が所定以上大きくなると出力を発生する第２の出
力発生手段と、試験信号を発生する試験信号発生手段と
、この試験信号発生手段の試験信号を上記第１および第
２の出力発生手段の少なくとも一方に与える試験信号切
替手段と、この試験信号切替手段により試験信号が与え
られる上記第１および第２の出力発生手段の出力からこ
れら第１および第２の出力発生手段の動作状態を確認す
る動作確認手段とを具備したことを特徴とする保護継電
装置。(1) A first output generating means that generates an output when the amount of electricity to be protected exceeds a preset value, and a second output generating means that generates an output when the amount of electricity to be protected exceeds a predetermined value. a test signal generating means for generating a test signal; a test signal switching means for supplying the test signal of the test signal generating means to at least one of the first and second output generating means; A protective relay device comprising: operation confirmation means for confirming the operating states of the first and second output generation means from the outputs of the first and second output generation means to which signals are applied.
出力を発生する第１の出力発生手段と、上記保護対象の
電気量が所定以上大きくなると出力を発生する第２の出
力発生手段と、試験信号を発生する試験信号発生手段と
、この試験信号発生手段の試験信号を上記第１および第
２の出力発生手段の少なくとも一方に与える試験信号切
替手段と、この試験信号切替手段に切替指令を与えると
ともに上記試験信号発生手段より試験信号が与えられる
上記第１および第２の出力発生手段の出力からこれら第
１および第２の出力発生手段の動作状態を確認する手段
を有する遠方監視手段とを具備したことを特徴とする保
護継電装置。(2) A first output generating means that generates an output when the amount of electricity to be protected exceeds a preset value, and a second output generating means that generates an output when the amount of electricity to be protected exceeds a predetermined value. and a test signal generating means for generating a test signal, a test signal switching means for supplying the test signal of the test signal generating means to at least one of the first and second output generating means, and switching to the test signal switching means. remote monitoring means having means for confirming the operational states of the first and second output generating means from the outputs of the first and second output generating means to which the test signal is applied by the test signal generating means as well as the command; A protective relay device characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1164525A JP2755697B2 (en) | 1989-06-27 | 1989-06-27 | Protective relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1164525A JP2755697B2 (en) | 1989-06-27 | 1989-06-27 | Protective relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0332317A true JPH0332317A (en) | 1991-02-12 |
| JP2755697B2 JP2755697B2 (en) | 1998-05-20 |
Family
ID=15794825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1164525A Expired - Lifetime JP2755697B2 (en) | 1989-06-27 | 1989-06-27 | Protective relay |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2755697B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014039408A (en) * | 2012-08-17 | 2014-02-27 | Toshiba Corp | Digital protection relay, digital protection relay testing device and digital protection relay testing method |
| CN105765393A (en) * | 2013-11-22 | 2016-07-13 | 三菱电机株式会社 | Electronic circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5222685A (en) * | 1975-08-15 | 1977-02-21 | Matsushita Electric Works Ltd | Maimtenance process of supervisory transmission system |
| JPS5341687A (en) * | 1976-09-29 | 1978-04-15 | Hitachi Ltd | Remote control system |
| JPS609338A (en) * | 1983-06-13 | 1985-01-18 | モトロ−ラ・インコ−ポレ−テツド | Device and method for monitoring electric load |
| JPS6043015A (en) * | 1983-08-19 | 1985-03-07 | 株式会社東芝 | Protective relaying device |
-
1989
- 1989-06-27 JP JP1164525A patent/JP2755697B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5222685A (en) * | 1975-08-15 | 1977-02-21 | Matsushita Electric Works Ltd | Maimtenance process of supervisory transmission system |
| JPS5341687A (en) * | 1976-09-29 | 1978-04-15 | Hitachi Ltd | Remote control system |
| JPS609338A (en) * | 1983-06-13 | 1985-01-18 | モトロ−ラ・インコ−ポレ−テツド | Device and method for monitoring electric load |
| JPS6043015A (en) * | 1983-08-19 | 1985-03-07 | 株式会社東芝 | Protective relaying device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014039408A (en) * | 2012-08-17 | 2014-02-27 | Toshiba Corp | Digital protection relay, digital protection relay testing device and digital protection relay testing method |
| CN105765393A (en) * | 2013-11-22 | 2016-07-13 | 三菱电机株式会社 | Electronic circuit breaker |
| JP6076499B2 (en) * | 2013-11-22 | 2017-02-08 | 三菱電機株式会社 | Electronic circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2755697B2 (en) | 1998-05-20 |
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