GB584186A - Improvements in control systems for direct current electric motors - Google Patents
Improvements in control systems for direct current electric motorsInfo
- Publication number
- GB584186A GB584186A GB833439A GB833439A GB584186A GB 584186 A GB584186 A GB 584186A GB 833439 A GB833439 A GB 833439A GB 833439 A GB833439 A GB 833439A GB 584186 A GB584186 A GB 584186A
- Authority
- GB
- United Kingdom
- Prior art keywords
- brake
- eddy current
- speed
- driven
- direct current
- 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)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
584,186. Eddy current brakes. TUSTIN, A., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 15, 1939, No. 8334. [Class 103 (i)] [Also in Group XXXVII] An eddy current brake 8, is driven through gearing including a clutch 15 controlled by centrifugal masses so as to slip when the speed at which the brake is driven exceeds a certain value, above which the braking effect becomes independent of the speed. A second eddy current brake 22 is directly driven. The excitation of the brake magnets 9, 11 may be controlled by the field controller 7 of an electric motor being braked so as to vary as the motor field. The torque-speed characteristics resulting from the arrangement are described with reference to Figs. 2 and 3 (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB833439A GB584186A (en) | 1939-03-15 | 1939-03-15 | Improvements in control systems for direct current electric motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB833439A GB584186A (en) | 1939-03-15 | 1939-03-15 | Improvements in control systems for direct current electric motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB584186A true GB584186A (en) | 1947-01-09 |
Family
ID=9850540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB833439A Expired GB584186A (en) | 1939-03-15 | 1939-03-15 | Improvements in control systems for direct current electric motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB584186A (en) |
-
1939
- 1939-03-15 GB GB833439A patent/GB584186A/en not_active Expired
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