JPS6142220A - Method of restarting digital protection relay - Google Patents
Method of restarting digital protection relayInfo
- Publication number
- JPS6142220A JPS6142220A JP16292884A JP16292884A JPS6142220A JP S6142220 A JPS6142220 A JP S6142220A JP 16292884 A JP16292884 A JP 16292884A JP 16292884 A JP16292884 A JP 16292884A JP S6142220 A JPS6142220 A JP S6142220A
- Authority
- JP
- Japan
- Prior art keywords
- protection relay
- digital protection
- cpu
- restarting
- output
- 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.)
- Pending
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［発明の利用分野〕
本発明による方法は、電力系統のデジタル形保護継電装
置のように、メインとなる系の異常がないかどうかを監
視し、常時は、動作出力が無くて、電子計算機を用いた
保護システムに関する。[Detailed Description of the Invention] [Field of Application of the Invention] The method according to the present invention monitors whether or not there is an abnormality in the main system, such as a digital protective relay device in a power system, and constantly It relates to a protection system that has no output and uses an electronic computer.
例えば、特開昭５２−１３１１３３号公報に示すように
、ディジタル形保護継電装置では、ＣＰＵが外部からの
ノイズ等によりストップしてしまうと、電力系統に事故
が発生しても、それを除去できない。そのため、ＣＰＵ
が停止するなどの異常が発生したら、即座にジェネラル
・リセットをかけ、再起動させる方法が考えられるが、
この方法では、デジタル形保護リレーの故障が永久的な
ものであったなら、誤動作や誤不動作にしてしまう恐れ
があった。For example, as shown in Japanese Unexamined Patent Application Publication No. 52-131133, a digital protective relay device is designed to eliminate the problem even if an accident occurs in the power system, if the CPU stops due to external noise, etc. Can not. Therefore, the CPU
If an abnormality occurs such as stopping, you can immediately perform a general reset and restart it.
With this method, if the failure of the digital protection relay was permanent, there was a risk that it would malfunction or malfunction.
〔発明の１目的〕
本発明の目的は電力系統のデジタルリレーの誤動作、誤
不動作を低減させ、信頼度向上を図るデジタル保護リレ
ーの再スタート方法を提供するにある。[One Object of the Invention] An object of the present invention is to provide a method for restarting a digital protection relay that reduces malfunctions and malfunctions of digital relays in power systems and improves reliability.
Ｃ発明の概要〕
電力系統のデジタル保護継電装置は、常時、電力系統に
１１【故が発生していないかどうかを監視するものなの
で、点検等で装置機能を止める時間はできる限り短い方
がよい。そのため、一時的なノイズ（電波ノイズ等）で
ＣＰＵがストップした場合、即座にＣＰ Ｕを再スター
トさせる。しかし、短時間以内に再度、ＣＰＵが停止す
るようでは、永久故障である疑いが濃い。系統にダメー
ジを与えないため、再起動させない。すなわち、装置異
常警報出力を出し、装置機能を停止させてしまう。C. Summary of the invention] A digital protective relay device for a power system constantly monitors the power system to see if any faults have occurred. good. Therefore, if the CPU stops due to temporary noise (radio wave noise, etc.), the CPU is immediately restarted. However, if the CPU seems to stop again within a short period of time, there is a strong suspicion that it is a permanent failure. Do not restart to avoid damaging the system. In other words, a device abnormality alarm is output and the device functions are stopped.
第１図に本発明のりスタート回路のブロック図を示する
。FIG. 1 shows a block diagram of the glue start circuit of the present invention.
ＣＰＵ異常信号、ウオッチドックタイマ−（ＶＤＴ）異
常信号等のオアｌをとって、この回路に加える。ブロッ
ク２はワンショットパルス（数＋ｍ５ｅｃ）のジェネラ
ル・リセット（ＧＲ）信号を発生する回路である。ブロ
ック３は数秒のワンショットパルスを発生する回路であ
る。アンド・ゲイト４で、オア・ゲイト１とブロック２
とブロック３のアンドを取る。その出力が装置異常警報
であり、この信号は装置出力をロックするために用いた
り、外部の総合監視装置等へ送られたりする。The OR of the CPU abnormal signal, watchdog timer (VDT) abnormal signal, etc. is taken and added to this circuit. Block 2 is a circuit that generates a one-shot pulse (several + m5ec) general reset (GR) signal. Block 3 is a circuit that generates a one-shot pulse of several seconds. And gate 4, or gate 1 and block 2
and take the AND of block 3. The output is a device abnormality alarm, and this signal is used to lock the device output or is sent to an external comprehensive monitoring device.
第２図は本発明の再スタート回路の動作を示すタイムチ
ャートである。最上段の図はＣＰＵが動いているかどう
かを示すもので、Ｌレベルで動作中、■ルベルで停止中
の場合の例を示す。上から二段１１の図はジェネラル・
リセット信号であり、ネガティブエツジでＣＰＵに再起
動させる。上から三段目は再異常検出期間を示す。第１
図のブロック３の出力である。最下段は装置異常警報出
力４６号であり、平常時Ｉ−レベルの場合を示している
。FIG. 2 is a time chart showing the operation of the restart circuit of the present invention. The diagram at the top shows whether the CPU is running or not, and shows an example where it is operating at L level and stopped at ■ level. The diagram in the second row 11 from the top is General
This is a reset signal and causes the CPU to restart at a negative edge. The third row from the top shows the re-abnormality detection period. 1st
This is the output of block 3 in the figure. The bottom row is device abnormality alarm output No. 46, which shows the case of normal I-level.
この信号は、第１図のアンド・ゲイト４の出力である。This signal is the output of AND gate 4 in FIG.
本発明によれば、デジタル形保護リレーのＣＰＵが、一
度、ストップした場合、ただちに、再起動するので誤不
動作が防げる。また、短時間（数秒）以内に二度もＣＰ
Ｕが停止したり、その他の異常信号が出たりした時に、
装置を止めてしまい、誤動作防止につながり、信頼度が
向上する。According to the present invention, once the CPU of the digital protection relay has stopped, it is immediately restarted, thereby preventing malfunctions. Also, CP occurred twice within a short period of time (several seconds).
When the U stops or other abnormal signals are output,
The device is stopped, which helps prevent malfunctions and improves reliability.
ムチャ−１〜である。
Ｊ ・オアゲート、２・・・ブロック、３・・ブロック
、４・・・アンドゲート。Mucha-1~. J ・Or gate, 2...block, 3...block, 4...and gate.
Claims (1)
ル等により一時的にＣＰＵが停止した場合、自動的に再
起動させ、その後、一定時間以内に再度、停止すると、
永久故障と判断し、装置を停止することを特徴とするデ
ジタル保護リレー再スタート方法。1. If the CPU is temporarily stopped by an external nozzle, etc. in a digital protection relay device for the electric power system, it will be restarted automatically and then stopped again within a certain period of time.
A method for restarting a digital protection relay characterized by determining a permanent failure and stopping the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16292884A JPS6142220A (en) | 1984-08-03 | 1984-08-03 | Method of restarting digital protection relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16292884A JPS6142220A (en) | 1984-08-03 | 1984-08-03 | Method of restarting digital protection relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6142220A true JPS6142220A (en) | 1986-02-28 |
Family
ID=15763896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16292884A Pending JPS6142220A (en) | 1984-08-03 | 1984-08-03 | Method of restarting digital protection relay |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6142220A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU707754B2 (en) * | 1995-10-09 | 1999-07-22 | Otsuka Pharmaceutical Co., Ltd. | Method for spectrometrically measuring isotopic gas and apparatus thereof |
| US6444985B1 (en) | 1997-01-14 | 2002-09-03 | Otsuka Pharmaceutical Co., Ltd. | Stable isotope measurement method and apparatus by spectroscopy |
| US6940083B2 (en) | 2000-09-25 | 2005-09-06 | Otsuka Pharmaceutical Co., Ltd. | Isotopic gas analyzer and method of judging absorption capacity of carbon dioxide absorbent |
| WO2020059102A1 (en) | 2018-09-21 | 2020-03-26 | 大塚電子株式会社 | Signal processing circuit, measurement device, and signal processing method |
-
1984
- 1984-08-03 JP JP16292884A patent/JPS6142220A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU707754B2 (en) * | 1995-10-09 | 1999-07-22 | Otsuka Pharmaceutical Co., Ltd. | Method for spectrometrically measuring isotopic gas and apparatus thereof |
| US6274870B1 (en) | 1995-10-09 | 2001-08-14 | Otsuka Pharmaceutical Co.,Ltd. | Method for spectrometrically measuring isotopic gas and apparatus thereof |
| US6444985B1 (en) | 1997-01-14 | 2002-09-03 | Otsuka Pharmaceutical Co., Ltd. | Stable isotope measurement method and apparatus by spectroscopy |
| US6455852B2 (en) | 1997-01-14 | 2002-09-24 | Otsuka Pharmaceutical Co., Ltd. | Stable isotope measurement method and apparatus by spectroscopy |
| US6940083B2 (en) | 2000-09-25 | 2005-09-06 | Otsuka Pharmaceutical Co., Ltd. | Isotopic gas analyzer and method of judging absorption capacity of carbon dioxide absorbent |
| WO2020059102A1 (en) | 2018-09-21 | 2020-03-26 | 大塚電子株式会社 | Signal processing circuit, measurement device, and signal processing method |
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