JPS53121144A - Carrier protective relaying equipment - Google Patents
Carrier protective relaying equipmentInfo
- Publication number
- JPS53121144A JPS53121144A JP3547477A JP3547477A JPS53121144A JP S53121144 A JPS53121144 A JP S53121144A JP 3547477 A JP3547477 A JP 3547477A JP 3547477 A JP3547477 A JP 3547477A JP S53121144 A JPS53121144 A JP S53121144A
- Authority
- JP
- Japan
- Prior art keywords
- protective relaying
- carrier protective
- relaying equipment
- equipment
- detecting
- 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
- Emergency Protection Circuit Devices (AREA)
Abstract
PURPOSE: To enable locking of equipment without requiring another channel, by controlling noise detection relay or noise lock channel signal thereby changing constant frequency transmission signal and detecting said change at the opposite terminal.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3547477A JPS53121144A (en) | 1977-03-31 | 1977-03-31 | Carrier protective relaying equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3547477A JPS53121144A (en) | 1977-03-31 | 1977-03-31 | Carrier protective relaying equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS53121144A true JPS53121144A (en) | 1978-10-23 |
Family
ID=12442763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3547477A Pending JPS53121144A (en) | 1977-03-31 | 1977-03-31 | Carrier protective relaying equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53121144A (en) |
-
1977
- 1977-03-31 JP JP3547477A patent/JPS53121144A/en active Pending
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