GB173480A - Improved process and apparatus for starting three-phase induction electric motors - Google Patents
Improved process and apparatus for starting three-phase induction electric motorsInfo
- Publication number
- GB173480A GB173480A GB2963521A GB2963521A GB173480A GB 173480 A GB173480 A GB 173480A GB 2963521 A GB2963521 A GB 2963521A GB 2963521 A GB2963521 A GB 2963521A GB 173480 A GB173480 A GB 173480A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistances
- starting
- electric motors
- improved process
- phase induction
- 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
- 230000006698 induction Effects 0.000 title abstract 3
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 230000007935 neutral effect Effects 0.000 abstract 2
- 230000001276 controlling effect Effects 0.000 abstract 1
- LTMHDMANZUZIPE-PUGKRICDSA-N digoxin Chemical compound C1[C@H](O)[C@H](O)[C@@H](C)O[C@H]1O[C@@H]1[C@@H](C)O[C@@H](O[C@@H]2[C@H](O[C@@H](O[C@@H]3C[C@@H]4[C@]([C@@H]5[C@H]([C@]6(CC[C@@H]([C@@]6(C)[C@H](O)C5)C=5COC(=O)C=5)O)CC4)(C)CC3)C[C@@H]2O)C)C[C@@H]1O LTMHDMANZUZIPE-PUGKRICDSA-N 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
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
- H02P1/32—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 by star/delta switching
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
Abstract
173,480. Siemens - Schuckertwerke Ges. Dec. 30, 1920, [Convention date]. Alternating - Current induction machines; dynamos, regulating; motors, controlling. - To start induction motors, the stator windings are changed from star to delta connection by inserting resistances and breaking up the neutral point, without interrupting the circuit. The sequence of changes according to one modification is shown in Figs. 1 to 4, in which X, Y, and Z are the three phases of the stator, and A, B, and C, the three resistances inserted in parallel with them. According to another modification, the resistances are inserted in series with the respective phases, and parallel connections are made as shown in Fig. 8 before breaking up the neutral point. In both cases the resistance is finally cut out. The invention may be applied to changing the connections of a dynamo from delta to star.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB173480A true GB173480A (en) | 1922-04-27 |
Family
ID=1741680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2963521A Expired GB173480A (en) | 1921-11-07 | Improved process and apparatus for starting three-phase induction electric motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB173480A (en) |
-
1921
- 1921-11-07 GB GB2963521A patent/GB173480A/en not_active Expired
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