JPS54153253A - Protection relay system - Google Patents
Protection relay systemInfo
- Publication number
- JPS54153253A JPS54153253A JP6115078A JP6115078A JPS54153253A JP S54153253 A JPS54153253 A JP S54153253A JP 6115078 A JP6115078 A JP 6115078A JP 6115078 A JP6115078 A JP 6115078A JP S54153253 A JPS54153253 A JP S54153253A
- Authority
- JP
- Japan
- Prior art keywords
- relays
- directional distance
- inputs
- outputs
- outer directional
- 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 interrupt inner troubles for sure when electric source is off on one end by locking the outputs of outer directional distance relays on conditions of the operation of lagging undervoltage relays for ground fault and the non-operation of lagging outer directional distance relays.
CONSTITUTION: Inhibit circuits 201∼203 with inputs of undervoltage relays 114∼ 116 and outer directional distance relays 117∼119 and on-delay timers 204∼206 with inputs of these outputs, and inhibit circuits 207∼209 and off-delay timers 210∼212 with inputs of these outputs, are added to a phase comparison relaying system which compares phases constantly for controlling to the side of non-operation by the operation of outer directional distance relays when an outer trouble is given. In this construction, since unnecessary reactions of outer directional distance relays are locked by inhibit circuits 207∼209, phase comparison relays 129∼131 can be operated for sure for issuing breaker-tripping instructions even in the troubled time when electric source is off on one end.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6115078A JPS54153253A (en) | 1978-05-24 | 1978-05-24 | Protection relay system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6115078A JPS54153253A (en) | 1978-05-24 | 1978-05-24 | Protection relay system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54153253A true JPS54153253A (en) | 1979-12-03 |
Family
ID=13162790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6115078A Pending JPS54153253A (en) | 1978-05-24 | 1978-05-24 | Protection relay system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54153253A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60167623A (en) * | 1984-02-08 | 1985-08-31 | 株式会社東芝 | Direction comparison relay system |
-
1978
- 1978-05-24 JP JP6115078A patent/JPS54153253A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60167623A (en) * | 1984-02-08 | 1985-08-31 | 株式会社東芝 | Direction comparison relay system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS54153253A (en) | Protection relay system | |
JPS5365951A (en) | Multi-terminal protective relay system | |
JPS5559520A (en) | Output switching system for processor duplication system | |
JPS5543647A (en) | Plant control system | |
JPS5447983A (en) | Device for stopping atomic power plant | |
JPS53101643A (en) | Automatically and selectively interrupting system | |
JPS528445A (en) | Spot network receiving facility | |
JPS528446A (en) | Spot network receiving facility | |
JPS51121155A (en) | Level switching circuit for off-set mo relay | |
JPS51129646A (en) | Selective reclosing system for incoming line | |
JPS526948A (en) | Busbar system, three stage closed power board | |
JPS5680946A (en) | Work station link control system | |
SU760306A1 (en) | Automatic switch of standby power supply unit | |
JPS54110453A (en) | Circuit breaker | |
JPS54113045A (en) | Protective relay | |
JPS51129645A (en) | Selective reclosing system for incoming line | |
JPS54153254A (en) | Carrier protection relaying device | |
JPS5467906A (en) | Protector for electric vehicle | |
JPS54113841A (en) | Automatic switching device of bus bar | |
JPS53110041A (en) | Phase comparison relay system | |
JPS544341A (en) | Protective relay system | |
JPS5314321A (en) | Controller or converter for power | |
JPS5362123A (en) | Operation controlling device for steam turbine | |
JPS5394841A (en) | Switching system for circuit corresponding part of communication control un it | |
JPS5696374A (en) | Operating device of electric quantity |