GB528554A - Improvements in or relating to electric motor control systems - Google Patents
Improvements in or relating to electric motor control systemsInfo
- Publication number
- GB528554A GB528554A GB1386039A GB1386039A GB528554A GB 528554 A GB528554 A GB 528554A GB 1386039 A GB1386039 A GB 1386039A GB 1386039 A GB1386039 A GB 1386039A GB 528554 A GB528554 A GB 528554A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- electric motor
- motor control
- control systems
- shunt field
- 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
- H02P7/24—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 discharge tubes or semiconductor devices
- H02P7/28—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 discharge tubes or semiconductor devices using semiconductor devices
- H02P7/282—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 discharge tubes or semiconductor devices using semiconductor devices controlling field supply only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
- Dc Machiner (AREA)
Abstract
528,554. Control of D.C. motors. GENERAL ELECTRIC CO., Ltd., and CROFT, E. H. May 9, 1939, No. 13860. [Class 38 (iii)] The shunt field discharge resistance of a compound - wound motor is controlled in accordance with the current flowing in the shunt field winding so as to be disconnected at zero and low values thereof. A contactor in the circuit of the discharge resistance is operated by a coil in series with the shunt field.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1386039A GB528554A (en) | 1939-05-09 | 1939-05-09 | Improvements in or relating to electric motor control systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1386039A GB528554A (en) | 1939-05-09 | 1939-05-09 | Improvements in or relating to electric motor control systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB528554A true GB528554A (en) | 1940-10-31 |
Family
ID=10030691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1386039A Expired GB528554A (en) | 1939-05-09 | 1939-05-09 | Improvements in or relating to electric motor control systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB528554A (en) |
-
1939
- 1939-05-09 GB GB1386039A patent/GB528554A/en not_active Expired
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