GB988088A - Improvements in and relating to a starting system for small electric motors - Google Patents
Improvements in and relating to a starting system for small electric motorsInfo
- Publication number
- GB988088A GB988088A GB1967261A GB1967261A GB988088A GB 988088 A GB988088 A GB 988088A GB 1967261 A GB1967261 A GB 1967261A GB 1967261 A GB1967261 A GB 1967261A GB 988088 A GB988088 A GB 988088A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- motor
- drum
- electric motors
- starting system
- 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
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/46—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor
- H02P1/52—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor by progressive increase of frequency of supply to motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Superconductive Dynamoelectric Machines (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Control Of Multiple Motors (AREA)
Abstract
988, 088. Photo-electric synchronization. A. BELTRAMI. May 31, 1961 [May 31, 1960], No. 19672/61. Heading G1A. [Also in Division H2] A starting system for electric motors comprises a small pilot motor 31 driving a drum 33 carrying oscillogram 34, Fig. 4 which modulates the radiations of a source 35 (Luminous or radioactive) disposed internally of the drum. The arrangement is such that a beam of the radiation analyses successively the whole surface of the drum 33, the resultant amplitude modulated beam being directed towards transducer 36 to produce an electrical quantity varying in frequency in accordance with the speed of the rotor of motor 31 and which after amplification at 37 is fed over wires or by radio to a plurality of motors to be started such as 39. During the starting period of motor 31 the electrical quantity's frequency is as shown at A, the frequency increasing as the motor 31 runs up to its operating speed when the frequency is as shown at B.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT953860 | 1960-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB988088A true GB988088A (en) | 1965-04-07 |
Family
ID=11131837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1967261A Expired GB988088A (en) | 1960-05-31 | 1961-05-31 | Improvements in and relating to a starting system for small electric motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB988088A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2360885A (en) * | 2000-03-29 | 2001-10-03 | Notetry Ltd | Motor control |
| US6812657B2 (en) | 2000-03-29 | 2004-11-02 | Dyson Limited | Motor control for two motors |
-
1961
- 1961-05-31 GB GB1967261A patent/GB988088A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2360885A (en) * | 2000-03-29 | 2001-10-03 | Notetry Ltd | Motor control |
| US6812657B2 (en) | 2000-03-29 | 2004-11-02 | Dyson Limited | Motor control for two motors |
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