JPS465976A - - Google Patents
Info
- Publication number
- JPS465976A JPS465976A JP2844571A JP2844571A JPS465976A JP S465976 A JPS465976 A JP S465976A JP 2844571 A JP2844571 A JP 2844571A JP 2844571 A JP2844571 A JP 2844571A JP S465976 A JPS465976 A JP S465976A
- 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.)
- Granted
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
- H02H3/08—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 excess current
- H02H3/093—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 excess current with timing means
Landscapes
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3296070A | 1970-04-29 | 1970-04-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS465976A true JPS465976A (en:Method) | 1971-12-06 |
| JPS5319776B2 JPS5319776B2 (en:Method) | 1978-06-22 |
Family
ID=21867806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2844571A Expired JPS5319776B2 (en:Method) | 1970-04-29 | 1971-04-28 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3602776A (en:Method) |
| JP (1) | JPS5319776B2 (en:Method) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3707651A (en) * | 1971-06-29 | 1972-12-26 | Westinghouse Electric Corp | Frequency shifted modulated carrier protective relaying system with amplitude modulated voice communication |
| JPS5183147A (en:Method) * | 1975-01-20 | 1976-07-21 | Tokyo Shibaura Electric Co | |
| US4006387A (en) * | 1975-09-22 | 1977-02-01 | The United States Of America As Represented By The Secretary Of The Air Force | Low power solid state three-phase overcurrent/undercurrent protection circuit |
| JPS607129U (ja) * | 1983-06-24 | 1985-01-18 | トキワ工業株式会社 | 安全スイツチ |
| US6058353A (en) * | 1997-01-23 | 2000-05-02 | Commonwealth Edison Company | System and method for providing backup protection for circuit breaker failure |
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1970
- 1970-04-29 US US32960A patent/US3602776A/en not_active Expired - Lifetime
-
1971
- 1971-04-28 JP JP2844571A patent/JPS5319776B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5319776B2 (en:Method) | 1978-06-22 |
| US3602776A (en) | 1971-08-31 |