JPS5421550A - Protective relay system - Google Patents
Protective relay systemInfo
- Publication number
- JPS5421550A JPS5421550A JP8566677A JP8566677A JPS5421550A JP S5421550 A JPS5421550 A JP S5421550A JP 8566677 A JP8566677 A JP 8566677A JP 8566677 A JP8566677 A JP 8566677A JP S5421550 A JPS5421550 A JP S5421550A
- Authority
- JP
- Japan
- Prior art keywords
- current
- relay system
- protective relay
- accident
- absolute value
- 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
Links
Landscapes
- Protection Of Static Devices (AREA)
- Ac-Ac Conversion (AREA)
Abstract
PURPOSE: To permit reliable detection of a transient state in the initial stage of an accident by a current comparison system, which determines a wiring accident to be present when difference current between the absolute value of load current and the absolute value of pattern current reaches a predetermined value.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8566677A JPS5421550A (en) | 1977-07-19 | 1977-07-19 | Protective relay system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8566677A JPS5421550A (en) | 1977-07-19 | 1977-07-19 | Protective relay system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5421550A true JPS5421550A (en) | 1979-02-17 |
JPS5526778B2 JPS5526778B2 (en) | 1980-07-16 |
Family
ID=13865137
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8566677A Granted JPS5421550A (en) | 1977-07-19 | 1977-07-19 | Protective relay system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5421550A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55138887A (en) * | 1979-04-17 | 1980-10-30 | Denki Onkyo Co Ltd | Hall element |
JP2006235301A (en) * | 2005-02-25 | 2006-09-07 | Pentax Corp | Magnifying glass |
-
1977
- 1977-07-19 JP JP8566677A patent/JPS5421550A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55138887A (en) * | 1979-04-17 | 1980-10-30 | Denki Onkyo Co Ltd | Hall element |
JPH0228910B2 (en) * | 1979-04-17 | 1990-06-27 | Murata Manufacturing Co | |
JP2006235301A (en) * | 2005-02-25 | 2006-09-07 | Pentax Corp | Magnifying glass |
Also Published As
Publication number | Publication date |
---|---|
JPS5526778B2 (en) | 1980-07-16 |
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