JPS54108251A - Protective relay device - Google Patents
Protective relay deviceInfo
- Publication number
- JPS54108251A JPS54108251A JP1563678A JP1563678A JPS54108251A JP S54108251 A JPS54108251 A JP S54108251A JP 1563678 A JP1563678 A JP 1563678A JP 1563678 A JP1563678 A JP 1563678A JP S54108251 A JPS54108251 A JP S54108251A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- difference
- electricity
- time
- electric current
- 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
Landscapes
- Protection Of Transformers (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
PURPOSE: To enable to work the device in high speed at an inner trouble time, by facilitating time co-operation between working quantity of electricity and suppression quantity of electricity.
CONSTITUTION: In the device, difference circuit 33 by which electric current difference in each terminal of electric power systems, circuit 35 which commutates output from this circuit 33, sum circuit 40 which sums up electric current, after rectifying electric current in each terminal, and circuit 100 in which difference between working quantity of electricity obtained in a circuit fundamental wave passing filter 34 and suppression quantity of electricity obtained in the sum circuit 40 can be obtained are provided, and when output of this circuit 100 is over a specified value, relay output can be obtained. Thus, since it is not neccessary to make the difference of transient characteristics among working quantity and suppression quantity to be avoided with time-limiting timer such as former condition, high speed treatment at an inner trouble time can be easily done, and at the same time, structure of the relay device can be simplified.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1563678A JPS54108251A (en) | 1978-02-14 | 1978-02-14 | Protective relay device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1563678A JPS54108251A (en) | 1978-02-14 | 1978-02-14 | Protective relay device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54108251A true JPS54108251A (en) | 1979-08-24 |
Family
ID=11894197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1563678A Pending JPS54108251A (en) | 1978-02-14 | 1978-02-14 | Protective relay device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54108251A (en) |
-
1978
- 1978-02-14 JP JP1563678A patent/JPS54108251A/en active Pending
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