JPS54147445A - Trip controller for breaker - Google Patents

Trip controller for breaker

Info

Publication number
JPS54147445A
JPS54147445A JP5447378A JP5447378A JPS54147445A JP S54147445 A JPS54147445 A JP S54147445A JP 5447378 A JP5447378 A JP 5447378A JP 5447378 A JP5447378 A JP 5447378A JP S54147445 A JPS54147445 A JP S54147445A
Authority
JP
Japan
Prior art keywords
self
relays
breaking
retention
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.)
Pending
Application number
JP5447378A
Other languages
Japanese (ja)
Inventor
Kiwamu Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Engineering Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Engineering Co Ltd
Hitachi Ltd
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 Hitachi Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Engineering Co Ltd
Priority to JP5447378A priority Critical patent/JPS54147445A/en
Publication of JPS54147445A publication Critical patent/JPS54147445A/en
Pending legal-status Critical Current

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Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To accomplish trip control of a breaker by constant breaking characteristic, free from any time lag set in the breaking circuit through self-retention of identifictation for respective trouble detection relays by means of a self- retaineing circuit.
CONSTITUTION: It is the same with the conventional controller that in response to internal troubles developing in two circuits of No.1 and 2 transmission lines 1 and 2, protective relays 1R and 2R starts working. But, the transmitssion line protective relay 1R and 2R respectively provided with self-retaining auxiliary relays 1X and 2X so that self-retention may be formed through normally open contacts 1CB2 and 2CB2 of breakers 1CB and 2CB in the respective circuits. With such an arrangement, the breaking characteistic can be maintained at the same level both in No.1 and 2 lines as when under the self-retention. If there is no difference in the working time between the auxiliary relays 1X and 2X, the breaking characteristic can be maintained at the same level, thus made free from difference in the settling time of the time relays 1T and 2T.
COPYRIGHT: (C)1979,JPO&Japio
JP5447378A 1978-05-10 1978-05-10 Trip controller for breaker Pending JPS54147445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5447378A JPS54147445A (en) 1978-05-10 1978-05-10 Trip controller for breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5447378A JPS54147445A (en) 1978-05-10 1978-05-10 Trip controller for breaker

Publications (1)

Publication Number Publication Date
JPS54147445A true JPS54147445A (en) 1979-11-17

Family

ID=12971632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5447378A Pending JPS54147445A (en) 1978-05-10 1978-05-10 Trip controller for breaker

Country Status (1)

Country Link
JP (1) JPS54147445A (en)

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