BE485536A - - Google Patents
Info
- Publication number
- BE485536A BE485536A BE485536DA BE485536A BE 485536 A BE485536 A BE 485536A BE 485536D A BE485536D A BE 485536DA BE 485536 A BE485536 A BE 485536A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/24—Variable impedance in stator or rotor circuit
- H02P25/26—Variable impedance in stator or rotor circuit with arrangements for controlling secondary impedance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/22—Control systems or devices for electric drives
- B66C13/23—Circuits for controlling the lowering of the load
- B66C13/26—Circuits for controlling the lowering of the load by ac motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
- B66C2700/081—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists with ac motors
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Stopping Of Electric Motors (AREA)
- Control Of Ac Motors In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US782998A US2493607A (en) | 1947-10-30 | 1947-10-30 | Eddy current preloaded controllable speed motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE485536A true BE485536A (de) |
Family
ID=25127870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE485536D BE485536A (de) | 1947-10-30 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2493607A (de) |
| BE (1) | BE485536A (de) |
| CA (1) | CA502936A (de) |
| CH (1) | CH272402A (de) |
| GB (1) | GB666497A (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2689934A (en) * | 1949-05-27 | 1954-09-21 | Harnischfeger Corp | Induced-current brake traction drive control |
| US2636157A (en) * | 1950-10-16 | 1953-04-21 | Cutler Hammer Inc | Induction motor control by electric brake |
| US2653291A (en) * | 1951-04-02 | 1953-09-22 | Whiting Corp | Apparatus for controlling hoists and the like |
| FR1119161A (fr) * | 1953-11-25 | 1956-06-15 | Electro Mecanique De Laveyron | Perfectionnements apportés aux appareils à courants de foucault, tels notamment que les ralentisseurs |
| US20140110947A1 (en) * | 2012-10-24 | 2014-04-24 | Vestas Wind Systems A/S | Wind turbine generator having an eddy current brake, wind turbine having such a generator, and associated methods |
| IT201700117293A1 (it) * | 2017-10-17 | 2019-04-17 | Extrema S R L | Gruppo frenante per un servoscala. |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2151734A (en) * | 1937-12-23 | 1939-03-28 | Westinghouse Elec Elevator Co | System of control for electric elevators |
| US2437996A (en) * | 1945-01-29 | 1948-03-16 | English Electric Co Ltd | Induction motor control by electric brake |
-
0
- BE BE485536D patent/BE485536A/xx unknown
- CA CA502936A patent/CA502936A/en not_active Expired
-
1947
- 1947-10-30 US US782998A patent/US2493607A/en not_active Expired - Lifetime
-
1948
- 1948-10-18 GB GB27008/48A patent/GB666497A/en not_active Expired
- 1948-10-29 CH CH272402D patent/CH272402A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB666497A (en) | 1952-02-13 |
| CA502936A (en) | 1954-05-25 |
| CH272402A (de) | 1950-12-15 |
| US2493607A (en) | 1950-01-03 |