FR1167687A - Electrical protection relay device and systems using them - Google Patents
Electrical protection relay device and systems using themInfo
- Publication number
- FR1167687A FR1167687A FR1167687DA FR1167687A FR 1167687 A FR1167687 A FR 1167687A FR 1167687D A FR1167687D A FR 1167687DA FR 1167687 A FR1167687 A FR 1167687A
- Authority
- FR
- France
- Prior art keywords
- systems
- relay device
- protection relay
- electrical protection
- electrical
- 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
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
- H01H47/16—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for conjoint, e.g. additive, operation of the relay
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
- H01H47/34—Energising current supplied by magnetic amplifier
-
- 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
- H02H3/40—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 ratio of voltage and current
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1754955A GB841866A (en) | 1955-06-17 | 1955-06-17 | Improvements in and relating to electromagnetic relays |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1167687A true FR1167687A (en) | 1958-11-27 |
Family
ID=10097132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1167687D Expired FR1167687A (en) | 1955-06-17 | 1956-05-04 | Electrical protection relay device and systems using them |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1029077B (en) |
FR (1) | FR1167687A (en) |
GB (1) | GB841866A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3508121A (en) * | 1965-10-13 | 1970-04-21 | Matsushita Electric Ind Co Ltd | Alternating current electromagnetic apparatus |
US11462345B2 (en) * | 2019-09-30 | 2022-10-04 | Rockwell Automation Technologies, Inc. | Systems and methods for controlling contactor bounce |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2573249A (en) * | 1944-05-03 | 1951-10-30 | Asea Ab | Saturable reactor impedance relay |
-
1955
- 1955-06-17 GB GB1754955A patent/GB841866A/en not_active Expired
-
1956
- 1956-05-04 FR FR1167687D patent/FR1167687A/en not_active Expired
- 1956-06-14 DE DEE12525A patent/DE1029077B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1029077B (en) | 1958-04-30 |
GB841866A (en) | 1960-07-20 |
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