GB582573A - Improvements connected with the control of acceleration and reversal of electric motors in "ward-leonard" equipment - Google Patents
Improvements connected with the control of acceleration and reversal of electric motors in "ward-leonard" equipmentInfo
- Publication number
- GB582573A GB582573A GB357/44A GB35744A GB582573A GB 582573 A GB582573 A GB 582573A GB 357/44 A GB357/44 A GB 357/44A GB 35744 A GB35744 A GB 35744A GB 582573 A GB582573 A GB 582573A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reversal
- control
- ward
- acceleration
- excited
- 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
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Multiple Motors (AREA)
Abstract
582,573. Control of D.C. motors. WHEELER, H. D., and MOSSAY, P. A. H. Jan. 7, 1944, No. 357. Drawings to Specification. [Class 38 (iii)] Reversing. In a Ward-Leonard system, reversal of the motor is effected quickly and with substantially uniform deceleration and acceleration by suitable design and control of two generator field windings, one of which is a self-excited shunt winding and the other is separately excited. The supply to the latter is reversed to reverse the motor and. at the same time, a resistance in the self-excited field is short circuited by the mechanical closure of a switch. This switch opens electro-magnetically, after reversal, to remove the short circuit when the generator attains a voltage equal to that which it had before reversal. Operating characteristic curves (not shown) are given.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB357/44A GB582573A (en) | 1944-01-07 | 1944-01-07 | Improvements connected with the control of acceleration and reversal of electric motors in "ward-leonard" equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB357/44A GB582573A (en) | 1944-01-07 | 1944-01-07 | Improvements connected with the control of acceleration and reversal of electric motors in "ward-leonard" equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB582573A true GB582573A (en) | 1946-11-21 |
Family
ID=9702963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB357/44A Expired GB582573A (en) | 1944-01-07 | 1944-01-07 | Improvements connected with the control of acceleration and reversal of electric motors in "ward-leonard" equipment |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB582573A (en) |
-
1944
- 1944-01-07 GB GB357/44A patent/GB582573A/en not_active Expired
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