GB985311A - Improvements in or relating to systems for controlling the speed of alternating current motors - Google Patents
Improvements in or relating to systems for controlling the speed of alternating current motorsInfo
- Publication number
- GB985311A GB985311A GB1088860A GB1088860A GB985311A GB 985311 A GB985311 A GB 985311A GB 1088860 A GB1088860 A GB 1088860A GB 1088860 A GB1088860 A GB 1088860A GB 985311 A GB985311 A GB 985311A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transformer
- rectifier
- relating
- systems
- controlling
- 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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/32—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring using discharge tubes
- H02P25/325—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring 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 Ac Motors In General (AREA)
Abstract
985,311. Automatic speed control. BRENTFORD TRANSFORMERS Ltd., and MATHER & PLATT Ltd. March 27, 1961 [March 28, 1960], No. 10888/60. Heading G3R. [Also in Division H2] The rotor windings of an induction motor M are connected to a saturable transformer 1 having a control winding 2 supplied in accordance with the slip voltage from rectifier 3,the output voltage of the rectifier being opposed by a reference voltage from rectifier 4. A second control winding 6 of the transformer compensates for variations in the rotor current due to load changes. Secondary windings of the transformer energize a mercury arc inverter 10 through rectifier 9 so that transformer 11 feeds power back to the supply. The inverter 10 is associated with a grid transformer 12, negative bias for the grids being provided by rectifier 13 connected to transformer 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1088860A GB985311A (en) | 1960-03-28 | 1960-03-28 | Improvements in or relating to systems for controlling the speed of alternating current motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1088860A GB985311A (en) | 1960-03-28 | 1960-03-28 | Improvements in or relating to systems for controlling the speed of alternating current motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB985311A true GB985311A (en) | 1965-03-10 |
Family
ID=9976162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1088860A Expired GB985311A (en) | 1960-03-28 | 1960-03-28 | Improvements in or relating to systems for controlling the speed of alternating current motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB985311A (en) |
-
1960
- 1960-03-28 GB GB1088860A patent/GB985311A/en not_active Expired
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