JPS54142551A - Overcurrent protection device - Google Patents
Overcurrent protection deviceInfo
- 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
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
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)
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 |
-
1978
- 1978-04-27 JP JP4931278A patent/JPS54142551A/en active Pending
Cited By (1)
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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