GB252246A - Improvements in and relating to dynamo electric machines - Google Patents
Improvements in and relating to dynamo electric machinesInfo
- Publication number
- GB252246A GB252246A GB463125A GB463125A GB252246A GB 252246 A GB252246 A GB 252246A GB 463125 A GB463125 A GB 463125A GB 463125 A GB463125 A GB 463125A GB 252246 A GB252246 A GB 252246A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- reactance
- rings
- starting
- short
- 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
- H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
Abstract
252,246. British Thomson-Houston Co., Ltd., and Whitaher, F. P. Feb. 19, 1925. Synchronizing dynamoelectric machines. - A motor - converter is started by an apparatus comprising resistance and reactance such that at starting at least the resistance is connected to the slip-rings and when the desired speed is reached the resistance is rendered ineffective and the reactance alone is left in circuit with the rings. In the form shown in Fig. 2, the resistance a is connected to the rings b at starting, and when the converter has reached a nearly synchronous speed the switch d is thrown over so as to replace the resistance by a reactance c. A switch e may be provided for short-circuiting the reactance when the machine has dropped into synchronism. The resistance and reactance elements may be connected in series, as shown in Fig. 3, the two-way switch d being thrown upwards for starting on the resistance with the reactance short-circuited and downwards, thereafter, for synchronizing on the reactance with the resistance short-circuited. A second switch e enables the rings to be short-circuited for permanent running. Alternatively, both resistance and reactance may be in circuit with the rings at starting, the resistance being so operated subsequently as to leave the reactance alone in circuit for synchronization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB463125A GB252246A (en) | 1925-02-19 | 1925-02-19 | Improvements in and relating to dynamo electric machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB463125A GB252246A (en) | 1925-02-19 | 1925-02-19 | Improvements in and relating to dynamo electric machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB252246A true GB252246A (en) | 1926-05-19 |
Family
ID=9780806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB463125A Expired GB252246A (en) | 1925-02-19 | 1925-02-19 | Improvements in and relating to dynamo electric machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB252246A (en) |
-
1925
- 1925-02-19 GB GB463125A patent/GB252246A/en not_active Expired
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