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JPS54144941A - Relay tap settling system - Google Patents

Relay tap settling system

Info

Publication number
JPS54144941A
JPS54144941A JP5274578A JP5274578A JPS54144941A JP S54144941 A JPS54144941 A JP S54144941A JP 5274578 A JP5274578 A JP 5274578A JP 5274578 A JP5274578 A JP 5274578A JP S54144941 A JPS54144941 A JP S54144941A
Authority
JP
Japan
Prior art keywords
relay
settling
tap
memory
error
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
JP5274578A
Other languages
Japanese (ja)
Inventor
Seishi Nomura
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 Ltd
Original Assignee
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 Ltd filed Critical Hitachi Ltd
Priority to JP5274578A priority Critical patent/JPS54144941A/en
Publication of JPS54144941A publication Critical patent/JPS54144941A/en
Pending legal-status Critical Current

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  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To make a tap value, corresponding to each relay, accommodated in the prescribed storage area without an error, by switching the processor from a protective relay operation program at a normal time to an off-line mode.
CONSTITUTION: In reserved protective relay devices, where a voltage and current in a transmission line are converted into a digital signal with an arithmetic unit 8 operating an arithmetic processing in accordance with the program stored in memory to a ROM6, is provided a tap value setting plate 10, with a relay set value made to be set in a writable non-volatile memory P-ROM11. And a setting in the memory is operated by a combination between a relay selective switch 20 and a digital switch 22 and a read command 24, further with a tap settling operated by switching the processor so as to be usable for the off-line when in a change of settling. Accordingly, the settling of many relays can be correctly practiced without an error.
COPYRIGHT: (C)1979,JPO&Japio
JP5274578A 1978-05-04 1978-05-04 Relay tap settling system Pending JPS54144941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5274578A JPS54144941A (en) 1978-05-04 1978-05-04 Relay tap settling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5274578A JPS54144941A (en) 1978-05-04 1978-05-04 Relay tap settling system

Publications (1)

Publication Number Publication Date
JPS54144941A true JPS54144941A (en) 1979-11-12

Family

ID=12923447

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5274578A Pending JPS54144941A (en) 1978-05-04 1978-05-04 Relay tap settling system

Country Status (1)

Country Link
JP (1) JPS54144941A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52155349A (en) * 1976-06-19 1977-12-23 Tokyo Electric Power Co Inc:The Setting method of digital protective relay
JPS5317950A (en) * 1976-08-03 1978-02-18 Tokyo Electric Power Co Inc:The Settling system for digital protective relay

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52155349A (en) * 1976-06-19 1977-12-23 Tokyo Electric Power Co Inc:The Setting method of digital protective relay
JPS5317950A (en) * 1976-08-03 1978-02-18 Tokyo Electric Power Co Inc:The Settling system for digital protective relay

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