BE448376A - - Google Patents
Info
- Publication number
- BE448376A BE448376A BE448376DA BE448376A BE 448376 A BE448376 A BE 448376A BE 448376D A BE448376D A BE 448376DA BE 448376 A BE448376 A BE 448376A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/30—Electromagnetic relays specially adapted for actuation by ac
- H01H51/32—Frequency relays; Mechanically-tuned relays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H53/00—Relays using the dynamo-electric effect, i.e. relays in which contacts are opened or closed due to relative movement of current-carrying conductor and magnetic field caused by force of interaction between them
- H01H53/10—Induction relays, i.e. relays in which the interaction is between a magnetic field and current induced thereby in a conductor
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- 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
- H02H3/427—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 induction relays
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electronic Switches (AREA)
- Transformers For Measuring Instruments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH568390X | 1942-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE448376A true BE448376A (ru) |
Family
ID=4520749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE448376D BE448376A (ru) | 1942-03-26 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2415653A (ru) |
| BE (1) | BE448376A (ru) |
| CH (1) | CH223866A (ru) |
| DE (1) | DE913448C (ru) |
| FR (1) | FR888945A (ru) |
| GB (1) | GB568390A (ru) |
| NL (1) | NL59082C (ru) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE976756C (de) * | 1955-01-08 | 1964-04-16 | Landis & Gyr Ag | An ein Starkstromnetz angeschlossener Fernsteuerempfaenger zur Durchfuehrung von Schaltoperationen vermittels tonfrequenter Befehlsimpulse, welche dem Starkstromnetz aufgedrueckt werden |
| US3683343A (en) * | 1970-07-27 | 1972-08-08 | Stephen Feldman | Demand metering system for electric energy |
| US4390839A (en) * | 1980-09-30 | 1983-06-28 | General Electric Company | Method and apparatus for tone controlled variable sensitivity time-of-day watt-hour metering |
| US4465970A (en) * | 1981-02-26 | 1984-08-14 | General Electric Company | Method and apparatus for multiple rate metering of electrical energy |
| GB2162575A (en) * | 1984-07-31 | 1986-02-05 | Thetford Int Prod | Portable waste compactor |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US706575A (en) * | 1901-01-31 | 1902-08-12 | Gen Electric | Multirate-metering system. |
| US1716752A (en) * | 1923-02-02 | 1929-06-11 | Gen Electric | Control system |
| DE496178C (de) * | 1924-09-30 | 1930-04-16 | Action A Distance Sa L | Induktions-Spannungsrelais mit zwei parallel geschalteten Wicklungen auf dem gleichen oder zwei getrennten Elektromagneten, deren eine in dem Stromkreis eines Kondensators liegt, der zwischen den durch die Elektromagnetwicklungen erzeugten Magnetfluessen eine Phasenverschiebung ergibt |
| US1801302A (en) * | 1926-02-05 | 1931-04-21 | Landis & Gyr Ag | Relay-circuit meter control device |
| GB339807A (ru) * | 1928-12-22 | 1930-12-18 | Allgemeine Elektricitaets-Gesellschaft | |
| US1911346A (en) * | 1932-04-05 | 1933-05-30 | Wired Radio Inc | Duplex integrating system |
| US1996145A (en) * | 1932-08-24 | 1935-04-02 | Cfcmug | Device for receiving high frequency currents superimposed on electrical power supply lines |
| US1957010A (en) * | 1932-08-24 | 1934-05-01 | Cfcmug | Multiple tariff metering system |
| US2131424A (en) * | 1934-05-08 | 1938-09-27 | Western Union Telegraph Co | Selective voice frequency relay |
| US2013815A (en) * | 1934-05-11 | 1935-09-10 | Westinghouse Electric & Mfg Co | Directional relay element |
| US2131164A (en) * | 1934-11-27 | 1938-09-27 | Csf | Remote selective control system |
| DE694463C (de) * | 1935-10-31 | 1940-08-01 | Georg Seibt Akt Ges Dr | Elektrischer Umdrehungsfernanzeiger |
| US2139821A (en) * | 1936-05-08 | 1938-12-13 | Sangamo Electric Co | Combination meter and time switch |
| US2246185A (en) * | 1939-03-03 | 1941-06-17 | Gen Electric | Combined meter and timing motor |
-
0
- BE BE448376D patent/BE448376A/xx unknown
- NL NL59082D patent/NL59082C/xx active
-
1942
- 1942-03-26 CH CH223866D patent/CH223866A/de unknown
- 1942-04-18 DE DEL3510D patent/DE913448C/de not_active Expired
- 1942-12-08 FR FR888945D patent/FR888945A/fr not_active Expired
-
1943
- 1943-02-18 US US476253A patent/US2415653A/en not_active Expired - Lifetime
- 1943-03-26 GB GB4935/43A patent/GB568390A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL59082C (ru) | |
| FR888945A (fr) | 1943-12-27 |
| CH223866A (de) | 1942-10-15 |
| US2415653A (en) | 1947-02-11 |
| DE913448C (de) | 1954-06-14 |
| GB568390A (en) | 1945-04-03 |