JPS449526B1 - - Google Patents
Info
- Publication number
- JPS449526B1 JPS449526B1 JP3093666A JP3093666A JPS449526B1 JP S449526 B1 JPS449526 B1 JP S449526B1 JP 3093666 A JP3093666 A JP 3093666A JP 3093666 A JP3093666 A JP 3093666A JP S449526 B1 JPS449526 B1 JP S449526B1
- Authority
- JP
- Japan
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/38—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current
- H02H3/382—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45620965 US3339115A (en) | 1965-05-17 | 1965-05-17 | Directional relay apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS449526B1 true JPS449526B1 (en) | 1969-05-02 |
Family
ID=52823388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3093666A Pending JPS449526B1 (en) | 1965-05-17 | 1966-05-17 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3339115A (en) |
| JP (1) | JPS449526B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3963964A (en) * | 1975-02-07 | 1976-06-15 | Westinghouse Electric Corporation | Segregated phase comparison system |
| US4148087A (en) * | 1977-04-20 | 1979-04-03 | Phadke Arun G | Distance relay for electric power transmission lines |
| US4371908A (en) * | 1979-09-17 | 1983-02-01 | Tokyo Shibaura Denki Kabushiki Kaisha | Digital protective relaying systems |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1021502A (en) * | 1961-03-03 | 1966-03-02 | English Electric Co Ltd | Improvements in and relating to electrical protective relay systems |
| US3201651A (en) * | 1962-07-02 | 1965-08-17 | Westinghouse Electric Corp | Distance relaying assembly |
| US3144586A (en) * | 1962-08-15 | 1964-08-11 | Westinghouse Electric Corp | Protective relay assemblies |
| US3303390A (en) * | 1963-06-07 | 1967-02-07 | Westinghouse Electric Corp | Distance relaying |
-
1965
- 1965-05-17 US US45620965 patent/US3339115A/en not_active Expired - Lifetime
-
1966
- 1966-05-17 JP JP3093666A patent/JPS449526B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3339115A (en) | 1967-08-29 |