GB780294A - Improvements relating to starting systems for synchronous motors - Google Patents
Improvements relating to starting systems for synchronous motorsInfo
- Publication number
- GB780294A GB780294A GB3262255A GB3262255A GB780294A GB 780294 A GB780294 A GB 780294A GB 3262255 A GB3262255 A GB 3262255A GB 3262255 A GB3262255 A GB 3262255A GB 780294 A GB780294 A GB 780294A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- resistor
- machine
- self
- exciter
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
Abstract
780,294. Control of A.C. motors. VEB LEUNA WERKE W. ULBRIGHT. Nov. 15, 1955, No. 32622/55. Class 38 (3). A synchronous motor, having a self-excited D.C. exciter 6 coupled to its shaft, is started as an induction motor by closing switch 7 to energize stator winding 2, the alternating current initially induced in the rotor field winding 1 of the motor being limited by means of choke 5 connected in parallel with resistor 4. The voltage of the exciter 6 increases only gradually during the starting period, the full value of the excitation current not being reached until the motor attains synchronous speed. For this purpose, a self-regulating resistor 8 is connected in the excitation circuit of the machine 6. The alternating current induced in the motor field winding during the starting period may be prevented from influencing the excitation of the machine 6 by providing this machine with an auxiliary exciter also driven by the synchronous motor. A resistor, corresponding to the resistor 8, as well as a choke, may be placed in the self-excitation circuit of the additional machine, Fig. 2 (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3262255A GB780294A (en) | 1955-11-15 | 1955-11-15 | Improvements relating to starting systems for synchronous motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3262255A GB780294A (en) | 1955-11-15 | 1955-11-15 | Improvements relating to starting systems for synchronous motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB780294A true GB780294A (en) | 1957-07-31 |
Family
ID=10341484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3262255A Expired GB780294A (en) | 1955-11-15 | 1955-11-15 | Improvements relating to starting systems for synchronous motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB780294A (en) |
-
1955
- 1955-11-15 GB GB3262255A patent/GB780294A/en not_active Expired
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