GB544209A - Improvement in electric motor control systems - Google Patents
Improvement in electric motor control systemsInfo
- Publication number
- GB544209A GB544209A GB148541A GB148541A GB544209A GB 544209 A GB544209 A GB 544209A GB 148541 A GB148541 A GB 148541A GB 148541 A GB148541 A GB 148541A GB 544209 A GB544209 A GB 544209A
- Authority
- GB
- United Kingdom
- Prior art keywords
- potentiometer
- speed
- grid
- voltage
- pilot generator
- 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
- H02P7/26—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 discharge tubes
- H02P7/265—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 discharge tubes whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
- Control Of Multiple Motors (AREA)
Abstract
544,209. Automatic control systems for electric motors. TRIGGS, W. W. (Niles-Bement-Pond Co.). Feb. 4, 1941, No. 1485. [Class 38 (iv)] Speed. To control the speed and related torque of a repulsion motor 10 the primary winding of a transformer 13 is connected in the brush circuit and a thermionic tube 14 in the secondary circuit of the transformer is grid-controlled by a pilot generator 17 and a potentiometer 29, 30, for example, to determine and stabilize the speed. The grid circuit of the valve 14 includes a load resistance 21 for the rectified output of the pilot generator which biases the grid negatively, a positive D C. bias from a potentiometer 26 and a potentiometer 24, fed with A.C. of adjustable phase and amplitude, whereby the instant of ignition of the valve 14 is determined. A positive bias voltage from a potentiometer 42 prevents voltage appearing on the resistor 21 until the maximum voltage in the coil 18 of the pilot generator exceeds the brush voltage and prevents variation in the characteristic and speed regulation at different speeds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB148541A GB544209A (en) | 1941-02-04 | 1941-02-04 | Improvement in electric motor control systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB148541A GB544209A (en) | 1941-02-04 | 1941-02-04 | Improvement in electric motor control systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB544209A true GB544209A (en) | 1942-04-01 |
Family
ID=9722835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB148541A Expired GB544209A (en) | 1941-02-04 | 1941-02-04 | Improvement in electric motor control systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB544209A (en) |
-
1941
- 1941-02-04 GB GB148541A patent/GB544209A/en not_active Expired
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