FR51132E - Improvements in relays - Google Patents
Improvements in relaysInfo
- Publication number
- FR51132E FR51132E FR51132DA FR51132E FR 51132 E FR51132 E FR 51132E FR 51132D A FR51132D A FR 51132DA FR 51132 E FR51132 E FR 51132E
- Authority
- FR
- France
- Prior art keywords
- relays
- 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.)
- Expired
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
- H02H3/42—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 product of voltage and current
- H02H3/425—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 product of voltage and current using phase sequence analysing arrangements
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR51132T | 1939-11-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR51132E true FR51132E (en) | 1941-08-08 |
Family
ID=8686040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR51132D Expired FR51132E (en) | 1939-11-30 | 1939-11-30 | Improvements in relays |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR51132E (en) |
-
1939
- 1939-11-30 FR FR51132D patent/FR51132E/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR849288A (en) | Improvements in radio-compasses | |
FR949299A (en) | Improvement in emulsions | |
FR876755A (en) | Relay | |
FR938714A (en) | Electromagnetic relay | |
FR858746A (en) | Improvements in relays | |
FR937589A (en) | Electromagnetic relay | |
FR51132E (en) | Improvements in relays | |
FR858476A (en) | Improvements in relays | |
FR837336A (en) | Improvements in relays | |
FR861601A (en) | Phono-electric relay | |
FR848224A (en) | Improvements in relays | |
FR841583A (en) | Improvements in relays | |
FR834137A (en) | Improvements in relays | |
FR844038A (en) | Time switch | |
FR861604A (en) | Phono-electric relay | |
FR834427A (en) | Relay | |
FR846645A (en) | Improvements to relays | |
FR863896A (en) | Improvements to electronic relays | |
FR837966A (en) | Seat | |
FR859326A (en) | Advanced wattmeter relay | |
FR814232A (en) | Development in relays | |
FR852883A (en) | Improvement in beams | |
FR819679A (en) | Improvements in relays | |
FR803440A (en) | Improvements in relays | |
FR847680A (en) | Improvements in special steels |