JPS58143425U - Protection relay monitoring device - Google Patents

Protection relay monitoring device

Info

Publication number
JPS58143425U
JPS58143425U JP1982170802U JP17080282U JPS58143425U JP S58143425 U JPS58143425 U JP S58143425U JP 1982170802 U JP1982170802 U JP 1982170802U JP 17080282 U JP17080282 U JP 17080282U JP S58143425 U JPS58143425 U JP S58143425U
Authority
JP
Japan
Prior art keywords
output
detection relay
circuit
outputs
relay
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
Application number
JP1982170802U
Other languages
Japanese (ja)
Inventor
仁井　嘉司
古瀬　溢泰
Original Assignee
東京電力株式会社
株式会社明電舎
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 東京電力株式会社, 株式会社明電舎 filed Critical 東京電力株式会社
Priority to JP1982170802U priority Critical patent/JPS58143425U/en
Publication of JPS58143425U publication Critical patent/JPS58143425U/en
Pending legal-status Critical Current

Links

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａは演算の例を示す波形図、同図す、　　ｃは夫
々演算の例を示すメモリ書き込み状態図、第２図はディ
ジタル的保護リレーの出カバターン、第３図、第４図は
夫々本考案の実施例を示すブロック図である。 １・・・・・・ディジタル的事故検出リレー、２・・・
・・・ディジタル的主検出リレー、３，７・・・・・・
ノット回路、４〜６，１４．１５・・・・・・アンド回
路、８・・・・・・検出装置、９・・・・・・オア回路
、１０・・・・・・タイム回路、１１・・・・・・カウ
ンタ回路、１２゛・・・・・・カウント判定回路、１３
・・・・・・判定装置、１６・・・・・・判別装置。Figure 1a is a waveform diagram showing an example of calculation, Figure 1c is a memory write state diagram showing an example of calculation, Figure 2 is an output pattern of a digital protection relay, Figures 3 and 4 are FIG. 3 is a block diagram showing an embodiment of the present invention. 1...Digital accident detection relay, 2...
...Digital main detection relay, 3,7...
Not circuit, 4 to 6, 14.15...AND circuit, 8...detection device, 9...OR circuit, 10...time circuit, 11 ... Counter circuit, 12゛ ... Count judgment circuit, 13
. . . Determination device, 16 . . . Determination device.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電力系統を保護するディジタル的事故検出リレーとあら
かじめ定められた保護区間の事故のみに応動するディジ
タル的主検出リレーのうち、いずれか一方のリレーのみ
が動作出力を出したことを検出して出力を送出する第１
、第２アンド回路と、この第１゛、第２アンド回路の出
力を所定時間内において計数し、所定回数以上であれば
前記主検出リーレーと前記事故検出リレーのうちのいず
れかが不良動作したと判定し、出力を送出するカウント
判定回路と、前記第１、第２アンド回路の出力が各々第
１入力端に供給され且つ前記カウント判定回路の出力が
各々第２入力端に供給される第３、第４アンド回路とを
備え、前記主検出リレーか前記事故検出リレーかのいず
れが不良となったかを判別することを特徴とする保護リ
レーの監視装置。Output is detected when only one of the digital fault detection relays that protect the power system and the digital main detection relay that responds only to faults within a predetermined protection zone has outputted an operational output. 1st to send
, the outputs of the second AND circuit and the first and second AND circuits are counted within a predetermined period of time, and if the outputs are greater than or equal to the predetermined number of times, one of the main detection relay and the accident detection relay has malfunctioned. a count determination circuit that determines and sends out an output; and a count determination circuit that supplies the outputs of the first and second AND circuits to first input terminals, and supplies the output of the count determination circuit to second input terminals. 3. A protection relay monitoring device, comprising a fourth AND circuit, and determining which of the main detection relay and the accident detection relay has become defective.
JP1982170802U 1976-05-26 1982-11-11 Protection relay monitoring device Pending JPS58143425U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1982170802U JPS58143425U (en) 1976-05-26 1982-11-11 Protection relay monitoring device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6148076A JPS52144754A (en) 1976-05-26 1976-05-26 Supervisory unit for protective relay
JP1982170802U JPS58143425U (en) 1976-05-26 1982-11-11 Protection relay monitoring device

Publications (1)

Publication Number Publication Date
JPS58143425U true JPS58143425U (en) 1983-09-27

Family

ID=13172270

Family Applications (3)

Application Number Title Priority Date Filing Date
JP6148076A Pending JPS52144754A (en) 1976-05-26 1976-05-26 Supervisory unit for protective relay
JP1982170802U Pending JPS58143425U (en) 1976-05-26 1982-11-11 Protection relay monitoring device
JP1982170803U Pending JPS58143426U (en) 1976-05-26 1982-11-11 Protection relay monitoring device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP6148076A Pending JPS52144754A (en) 1976-05-26 1976-05-26 Supervisory unit for protective relay

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP1982170803U Pending JPS58143426U (en) 1976-05-26 1982-11-11 Protection relay monitoring device

Country Status (1)

Country Link
JP (3) JPS52144754A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0270221A (en) * 1988-09-01 1990-03-09 Toshiba Corp Protective relay
JPH0311916A (en) * 1989-06-08 1991-01-21 Toshiba Corp Digital protective relay device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6120777Y2 (en) * 1977-12-02 1986-06-21

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS518426B2 (en) * 1972-01-18 1976-03-16

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0270221A (en) * 1988-09-01 1990-03-09 Toshiba Corp Protective relay
JPH0311916A (en) * 1989-06-08 1991-01-21 Toshiba Corp Digital protective relay device

Also Published As

Publication number Publication date
JPS58143426U (en) 1983-09-27
JPS52144754A (en) 1977-12-02

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