JPS5465344A - Protective relaying equipment - Google Patents
Protective relaying equipmentInfo
- Publication number
- JPS5465344A JPS5465344A JP13023777A JP13023777A JPS5465344A JP S5465344 A JPS5465344 A JP S5465344A JP 13023777 A JP13023777 A JP 13023777A JP 13023777 A JP13023777 A JP 13023777A JP S5465344 A JPS5465344 A JP S5465344A
- Authority
- JP
- Japan
- Prior art keywords
- characteristic detecting
- detecting section
- mho
- current inversion
- delay timer
- 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
- Emergency Protection Circuit Devices (AREA)
Abstract
PURPOSE: To eliminate unnecessary response against current inversion, by providing on-delay timer which is excited when both of reactance characteristic detecting section and mho characteristic detecting section are functioned and holding circuit which is provided with the output from said timer.
CONSTITUTION: Outputs from first and second stage reactance characteristic detecting sections 11, 12, mho characteristic detecting section 13 and offset mho characteristic detecting section 14 are combined through AND gate 15, OR gate 16 and on- delay timer 17 to function aux. relay 18, while the time limit of on-delay timer 17c is made longer than max. reset lap time of first reactance characteristic detecting section 11 and mho characteristic detecting section 13 during current inversion and shorter than memory time of mho characteristic detecting section. Consequently unnecessary response against current inversion is eliminated and reliably responded even for inner close end fault.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13023777A JPS6041533B2 (en) | 1977-11-01 | 1977-11-01 | Protective relay device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13023777A JPS6041533B2 (en) | 1977-11-01 | 1977-11-01 | Protective relay device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5465344A true JPS5465344A (en) | 1979-05-25 |
JPS6041533B2 JPS6041533B2 (en) | 1985-09-17 |
Family
ID=15029382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13023777A Expired JPS6041533B2 (en) | 1977-11-01 | 1977-11-01 | Protective relay device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6041533B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3338959C1 (en) * | 1983-10-27 | 1985-03-21 | Daimler-Benz Ag, 7000 Stuttgart | Method for determining irregular combustion cylinders of an internal combustion engine and device for carrying out this method |
-
1977
- 1977-11-01 JP JP13023777A patent/JPS6041533B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6041533B2 (en) | 1985-09-17 |
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