JPH0439034U - - Google Patents

Info

Publication number
JPH0439034U
JPH0439034U JP8009790U JP8009790U JPH0439034U JP H0439034 U JPH0439034 U JP H0439034U JP 8009790 U JP8009790 U JP 8009790U JP 8009790 U JP8009790 U JP 8009790U JP H0439034 U JPH0439034 U JP H0439034U
Authority
JP
Japan
Prior art keywords
circuit
short
line selection
relay
time
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
JP8009790U
Other languages
Japanese (ja)
Other versions
JP2539793Y2 (en
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 filed Critical
Priority to JP1990080097U priority Critical patent/JP2539793Y2/en
Publication of JPH0439034U publication Critical patent/JPH0439034U/ja
Application granted granted Critical
Publication of JP2539793Y2 publication Critical patent/JP2539793Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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  • Emergency Protection Circuit Devices (AREA)

Description

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

第１図はこの考案の構成例であるトリツプ回路
を表す図である。第２図はこの考案の実施例であ
る短絡回線選択保護継電装置の主要部の論理回路
図である。第３図および第４図一般的な短絡事故
の例を表す系統図である。第５図および第６図は
一般的な短絡事故発生時の短絡回線選択継電器の
動作を説明するための波形図である。第７図は従
来の短絡回線選択保護継電装置のトリツプ回路図
である。 Ｘ……リレー、Ｔ……タイマ回路、５０Ｓ……
短絡回線選択継電器の接点、５１ＳＳ……過電流
継電器の接点、１５０ＳＴ，２５０ＳＴ……限時
回路。 FIG. 1 is a diagram showing a trip circuit which is an example of the configuration of this invention. FIG. 2 is a logic circuit diagram of the main parts of a short circuit selective protection relay device which is an embodiment of this invention. FIGS. 3 and 4 are system diagrams showing examples of common short-circuit accidents. FIGS. 5 and 6 are waveform diagrams for explaining the operation of the short circuit selection relay when a general short circuit accident occurs. FIG. 7 is a trip circuit diagram of a conventional short circuit selective protection relay device. X...Relay, T...Timer circuit, 50S...
Contact of short circuit selection relay, 51SS... Contact of overcurrent relay, 150ST, 250ST... Time limit circuit.

Claims (1)

【実用新案登録請求の範囲】 短絡回線選択継電器と、この短絡回線選択継電
器により故障回線が検出されてから一定時間を計
時した後に遮断器を作動させる限時回路とを備え
た装置において、 並行二回線の両回線のうち何れか一方の遮断器
が遮断状態となつたとき、上記計時動作を解除す
る計時動作解除回路を設けたことを特徴とする短
絡回線選択保護継電装置。[Scope of claim for utility model registration] A device equipped with a short-circuit line selection relay and a time-limited circuit that operates a circuit breaker after a certain period of time has elapsed since the fault line was detected by the short-circuit line selection relay, A short-circuit line selection protection relay device, characterized in that it is provided with a timing operation cancellation circuit that cancels the timing operation when either one of the circuit breakers is cut off.
JP1990080097U 1990-07-26 1990-07-26 Short circuit selection protection relay Expired - Lifetime JP2539793Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990080097U JP2539793Y2 (en) 1990-07-26 1990-07-26 Short circuit selection protection relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990080097U JP2539793Y2 (en) 1990-07-26 1990-07-26 Short circuit selection protection relay

Publications (2)

Publication Number Publication Date
JPH0439034U true JPH0439034U (en) 1992-04-02
JP2539793Y2 JP2539793Y2 (en) 1997-06-25

Family

ID=31624850

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990080097U Expired - Lifetime JP2539793Y2 (en) 1990-07-26 1990-07-26 Short circuit selection protection relay

Country Status (1)

Country Link
JP (1) JP2539793Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007244031A (en) * 2006-03-06 2007-09-20 Kansai Electric Power Co Inc:The Protection system for two parallel transmission lines

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5656122A (en) * 1979-10-15 1981-05-18 Tokyo Shibaura Electric Co Protecting relay device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5656122A (en) * 1979-10-15 1981-05-18 Tokyo Shibaura Electric Co Protecting relay device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007244031A (en) * 2006-03-06 2007-09-20 Kansai Electric Power Co Inc:The Protection system for two parallel transmission lines

Also Published As

Publication number Publication date
JP2539793Y2 (en) 1997-06-25

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