GB381123A - Improvements in or relating to controllers for electric motors - Google Patents
Improvements in or relating to controllers for electric motorsInfo
- Publication number
- GB381123A GB381123A GB13319/32A GB1331932A GB381123A GB 381123 A GB381123 A GB 381123A GB 13319/32 A GB13319/32 A GB 13319/32A GB 1331932 A GB1331932 A GB 1331932A GB 381123 A GB381123 A GB 381123A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- winding
- windings
- reactors
- energized
- 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
- 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
- H02P25/28—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 using magnetic devices with controllable degree of saturation, e.g. transductors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
381,123. Master control of A.C. motors. IGRANIC ELECTRIC CO., Ltd., 147, Queen Victoria Street, London.-(Assignees of Seeger, E. W. ; Wauwatosa, Wisconsin, U.S.A.) May 9, 1932, No. 13319. Convention date, May 11, 1931. [Class 38 (iii).] Regenerative braking.-A two-speed motor M, connected for high or low-speed operation by means of a switch 9, has reactors 1, 2, 3 in circuit with the low-speed winding S, and direct current windings W2, energized in accordance with the position of the switch 9, are provided on the reactors. As a master switch 11 is moved in one direction or the other a main switch 6 and one of two reversing switches 7, 8 are closed, and the motor M is connected for low-speed operation, the direct-current windings W2 on the reactors 1, 2, 3 being energized and controlling the acceleration. If the movement of the switch 11 is completed the switch 9 is energized, disconnecting the windings W2, and the winding S, and connecting the motor winding S1 for high-speed operation. Upon return of the switch 11 to its " off '' position, the switches 6, 7, 8 are maintained closed over auxiliary contacts 7c, 8c, and the contacts of a relay 10, while the switch 9 drops out to disconnect the winding S1 and connect the slow-speed winding S, and the direct-current windings W2. Regenerative braking is effected under the control of the windings W2, and after a time the relay 10, energized in series with the windings W2, opens to de-energize the switches 6, 7, 8 to disconnect the motor from the supply. Reactors such as 1, 2, 3 may also be provided in the circuit of the winding S1.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US381123XA | 1931-05-11 | 1931-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB381123A true GB381123A (en) | 1932-09-29 |
Family
ID=21898152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13319/32A Expired GB381123A (en) | 1931-05-11 | 1932-05-09 | Improvements in or relating to controllers for electric motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB381123A (en) |
-
1932
- 1932-05-09 GB GB13319/32A patent/GB381123A/en not_active Expired
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