GB750291A - Improvements relating to control systems for electric motors - Google Patents
Improvements relating to control systems for electric motorsInfo
- Publication number
- GB750291A GB750291A GB1593951A GB1593951A GB750291A GB 750291 A GB750291 A GB 750291A GB 1593951 A GB1593951 A GB 1593951A GB 1593951 A GB1593951 A GB 1593951A GB 750291 A GB750291 A GB 750291A
- Authority
- GB
- United Kingdom
- Prior art keywords
- winding
- current
- strip
- starting
- july
- 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
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/04—Asynchronous induction motors for single phase current
- H02K17/08—Motors with auxiliary phase obtained by externally fed auxiliary windings, e.g. capacitor motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
Abstract
750,291. Induction motors. BERESFORD & SON, Ltd., J. July 7, 1952 [July 5, 1951], No. 15939/51. Class 35. The bimetallic starting switch which cuts out the starting winding of a split-phase motor for normal running is operated or held open by current from an additional winding on the stator and energized by transformer action from the other two windings. In the form shown the motor stator carries a main winding 10 and a starting winding 11 connected to terminals 10a, 11a. The starting switch comprises a snapaction bimetallic strip 13 which when cold carries the current from the line L to the starting winding. This current heats the strip 13 so that it snaps over to the position (shown in broken lines) bridging terminals 12a, 12b of the additional winding 12 which generates current for maintaining the strip in a heated condition, a resistor 14 limiting the current. In a modification the additional winding comprises several coils in series and the strip is indirectly heated. A lap-wound capacitor-start machine is also described.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1593951A GB750291A (en) | 1951-07-05 | 1951-07-05 | Improvements relating to control systems for electric motors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1593951A GB750291A (en) | 1951-07-05 | 1951-07-05 | Improvements relating to control systems for electric motors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB750291A true GB750291A (en) | 1956-06-13 |
Family
ID=10068266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1593951A Expired GB750291A (en) | 1951-07-05 | 1951-07-05 | Improvements relating to control systems for electric motors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB750291A (en) |
-
1951
- 1951-07-05 GB GB1593951A patent/GB750291A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB623970A (en) | Improvements relating to frequency-responsive electric relays | |
GB750291A (en) | Improvements relating to control systems for electric motors | |
GB788654A (en) | Improvements in and relating to thermally responsive electric switches | |
GB591634A (en) | Improved control device for electric motors | |
GB764758A (en) | Improvements in and relating to the protection of multi-speed electric motors | |
US2445976A (en) | Motor control system | |
GB849177A (en) | Electric motor control apparatus | |
GB750296A (en) | Improvements relating to control systems for electric motors | |
US1664325A (en) | Motor regulator | |
GB501026A (en) | Improvements in or relating to electric motors | |
US2403156A (en) | Electric motor control | |
US2011851A (en) | Control circuit | |
US2107927A (en) | Control system | |
US2682631A (en) | Single phase motor control | |
US2440896A (en) | Delayed start alternating-current motor | |
US1297096A (en) | Starting direct-current motors. | |
GB631696A (en) | Improvements in and relating to the starting of single phase induction motors | |
GB528022A (en) | Improvements relating to thermal switches for controlling electric motors | |
GB621470A (en) | Improvements in and relating to control circuits for single phase capacitor motors | |
GB466349A (en) | Improvements in and relating to the speed control of dynamo electric machines | |
GB647274A (en) | A starter or starting switch for single-phase induction split-phase motors | |
US1359700A (en) | Electric brake | |
GB392490A (en) | Improvements in and relating to thermal time relays for controlling the auxiliary windings of induction motors | |
GB771874A (en) | Improvements relating to thermal protection of single phase a.c. motors | |
GB166878A (en) | Improvements relating to the control of alternating-current electric motors |