JPS54142551A - Overcurrent protection device - Google Patents

Overcurrent protection device

Info

Publication number
JPS54142551A
JPS54142551A JP4931278A JP4931278A JPS54142551A JP S54142551 A JPS54142551 A JP S54142551A JP 4931278 A JP4931278 A JP 4931278A JP 4931278 A JP4931278 A JP 4931278A JP S54142551 A JPS54142551 A JP S54142551A
Authority
JP
Japan
Prior art keywords
microcomputer
protection device
breaker
characteristic
overcurrent protection
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
JP4931278A
Other languages
Japanese (ja)
Inventor
Yoshihiro Matsumoto
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4931278A priority Critical patent/JPS54142551A/en
Priority to GB7913794A priority patent/GB2020124B/en
Priority to US06/032,684 priority patent/US4272816A/en
Priority to CH3908/79A priority patent/CH656742A5/en
Priority to SE7903658A priority patent/SE442366B/en
Priority to DE2917174A priority patent/DE2917174C2/en
Publication of JPS54142551A publication Critical patent/JPS54142551A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a desired precise protection characteristic by the use of a microcomputer.
CONSTITUTION: When an overcurrent flows in the wire 9, the breaker 12 is opened by means of a microcomputer 10 within a time determined on referring to the characteristic diagram which shows the relationship between the time from the occurrence of overcurrent to the trip of breaker and the current value. In this device, the characteristic shown in the diagram is stored in the memory of microcomputer 10 and the storing content can be easily modified by a well-known memory writing unit.
COPYRIGHT: (C)1979,JPO&Japio
JP4931278A 1978-04-27 1978-04-27 Overcurrent protection device Pending JPS54142551A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP4931278A JPS54142551A (en) 1978-04-27 1978-04-27 Overcurrent protection device
GB7913794A GB2020124B (en) 1978-04-27 1979-04-20 Overcurrent protection
US06/032,684 US4272816A (en) 1978-04-27 1979-04-23 Overcurrent protecting apparatus
CH3908/79A CH656742A5 (en) 1978-04-27 1979-04-25 OVERCURRENT PROTECTION CIRCUIT.
SE7903658A SE442366B (en) 1978-04-27 1979-04-26 Troms PROTECTION
DE2917174A DE2917174C2 (en) 1978-04-27 1979-04-27 Overcurrent protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4931278A JPS54142551A (en) 1978-04-27 1978-04-27 Overcurrent protection device

Publications (1)

Publication Number Publication Date
JPS54142551A true JPS54142551A (en) 1979-11-06

Family

ID=12827433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4931278A Pending JPS54142551A (en) 1978-04-27 1978-04-27 Overcurrent protection device

Country Status (1)

Country Link
JP (1) JPS54142551A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62160032A (en) * 1984-07-17 1987-07-16 ゼネラル・エレクトリツク・カンパニイ Static tripping breaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62160032A (en) * 1984-07-17 1987-07-16 ゼネラル・エレクトリツク・カンパニイ Static tripping breaker

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