GB708267A - Improvements in means for controlling the speed of electric motors - Google Patents
Improvements in means for controlling the speed of electric motorsInfo
- Publication number
- GB708267A GB708267A GB10390/51A GB1039051A GB708267A GB 708267 A GB708267 A GB 708267A GB 10390/51 A GB10390/51 A GB 10390/51A GB 1039051 A GB1039051 A GB 1039051A GB 708267 A GB708267 A GB 708267A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- transductor
- series
- control
- speed
- 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
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/30—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using magnetic devices with controllable degree of saturation, i.e. transductors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Multiple Motors (AREA)
Abstract
708,267. Control of A.C. motors; control of D.C. motors. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. May 3, 1951 [May 6, 1950], No. 10390/51. Drawings to Specification. Class 38(3) [Also in Group XXXV] , A commutator motor has series excitation and may have a series speed-torque characteristic for the starting operation, afterwards being operated as a motor having substantially a shunt characteristic the power winding of a transductor being connected in series with the motor for this purpose. The motor may be of the A.C. type, the transductor having two control windings energized respectively from a constant source and adjustably in accordance with the motor current. The transductor may have, in addition, an adjustable control winding energized through a rectifier in accordance with the motor voltage. In each case the object is to obtain such a relation between the current and voltage of the motor that the speed is kept substantially constant despite varying load. The motor may be of the D.C. type connected to a rectifier which is in series with the transductor. A single control winding of the transductor may be energized in accordance with the difference of currents representing the voltage and current of the motor respectively.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE708267X | 1950-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB708267A true GB708267A (en) | 1954-05-05 |
Family
ID=20315647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10390/51A Expired GB708267A (en) | 1950-05-06 | 1951-05-03 | Improvements in means for controlling the speed of electric motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB708267A (en) |
-
1951
- 1951-05-03 GB GB10390/51A patent/GB708267A/en not_active Expired
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