JPS3110023B1 - - Google Patents
Info
- Publication number
- JPS3110023B1 JPS3110023B1 JP2385454A JP2385454A JPS3110023B1 JP S3110023 B1 JPS3110023 B1 JP S3110023B1 JP 2385454 A JP2385454 A JP 2385454A JP 2385454 A JP2385454 A JP 2385454A JP S3110023 B1 JPS3110023 B1 JP S3110023B1
- 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
- H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/34—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system
- H02H3/343—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system using phase sequence analysers
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Protection Of Transformers (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39002053 US2897407A (en) | 1953-11-03 | 1953-11-03 | Negative-phase-sequence responsive apparatus |
| JP2385454A JPS3110023B1 (en:Method) | 1953-11-03 | 1954-11-04 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39002053 US2897407A (en) | 1953-11-03 | 1953-11-03 | Negative-phase-sequence responsive apparatus |
| JP2385454A JPS3110023B1 (en:Method) | 1953-11-03 | 1954-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS3110023B1 true JPS3110023B1 (en:Method) | 1956-11-22 |
Family
ID=52826366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2385454A Pending JPS3110023B1 (en:Method) | 1953-11-03 | 1954-11-04 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2897407A (en:Method) |
| JP (1) | JPS3110023B1 (en:Method) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3154737A (en) * | 1960-05-13 | 1964-10-27 | Gen Electric | Phase-sequence network for eliminating response failure upon positive and negative sequence cancellation |
| US3942074A (en) * | 1974-09-27 | 1976-03-02 | General Electric Company | Static overcurrent relay |
| US3992651A (en) * | 1975-04-01 | 1976-11-16 | General Electric Company | Active symmetrical component network for protective relays |
| US4156186A (en) * | 1977-11-07 | 1979-05-22 | General Electric Company | Method and apparatus for determining negative sequence current in a multi-phase dynamoelectric machine |
| US4146913A (en) * | 1977-12-30 | 1979-03-27 | Westinghouse Electric Corp. | Symmetrical component sequence filter |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1726928A (en) * | 1924-01-08 | 1929-09-03 | Westinghouse Electric & Mfg Co | Phase-sequence relay |
| US2161829A (en) * | 1938-01-28 | 1939-06-13 | Westinghouse Electric & Mfg Co | Phase-sequence filter |
| US2315470A (en) * | 1941-03-14 | 1943-03-30 | Gen Electric | Protective system |
| US2381527A (en) * | 1941-07-31 | 1945-08-07 | Gen Electric | Protective apparatus |
| US2309649A (en) * | 1941-12-30 | 1943-02-02 | Westinghouse Electric & Mfg Co | Phase-sequence relaying equipment |
| US2456976A (en) * | 1945-05-25 | 1948-12-21 | Gen Electric | Phase responsive protective relaying system |
| US2516022A (en) * | 1945-08-18 | 1950-07-18 | Westinghouse Electric Corp | Relaying system |
| US2516025A (en) * | 1947-03-27 | 1950-07-18 | Westinghouse Electric Corp | Ground-relay transmission-line protection |
-
1953
- 1953-11-03 US US39002053 patent/US2897407A/en not_active Expired - Lifetime
-
1954
- 1954-11-04 JP JP2385454A patent/JPS3110023B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US2897407A (en) | 1959-07-28 |