GB891846A - Improvements in dynamo-electric machines - Google Patents
Improvements in dynamo-electric machinesInfo
- Publication number
- GB891846A GB891846A GB177060A GB177060A GB891846A GB 891846 A GB891846 A GB 891846A GB 177060 A GB177060 A GB 177060A GB 177060 A GB177060 A GB 177060A GB 891846 A GB891846 A GB 891846A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phase
- change
- pole
- cyclic order
- star
- 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
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/12—Asynchronous induction motors for multi-phase current
- H02K17/14—Asynchronous induction motors for multi-phase current having windings arranged for permitting pole-changing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ac-Ac Conversion (AREA)
Abstract
891,846. Change-pole machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 29, 1960 [Jan. 18, 1960], No. 1770/60. Class 35. A change-pole induction or synchronous machine operates by reconnecting parts of each phase winding in series or parallel with another phase winding in cyclic order with reversal of polarity of the transposed part to modify the harmonic pattern of the M.M.F. and so obtain a change in effective polenumber. In the star-connected form shown, each phase is divided into four sections 1, 2, 3 and 4 arranged in two groups I and II. In the normal connection, all the windings of each phase are connected in series. Operation of the pole-changing switches 5, 6 reconnects section 2a into phase B (and so on in cyclic order) and also reverses it. Simultaneously, section 3b (and so on) is also reversed in polarity. In a simpler form (Figs. 2 and 4, not shown), each group consists of a single winding only, one of which is transferred in cyclic order and reversed, and in a more complicated form, each phase is divided into three sections, two of which are transposed in opposite directions. Star-delta arrangements (Figs. 5 and 6, not shown), are described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB177060A GB891846A (en) | 1960-01-18 | 1960-01-18 | Improvements in dynamo-electric machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB177060A GB891846A (en) | 1960-01-18 | 1960-01-18 | Improvements in dynamo-electric machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB891846A true GB891846A (en) | 1962-03-21 |
Family
ID=9727680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB177060A Expired GB891846A (en) | 1960-01-18 | 1960-01-18 | Improvements in dynamo-electric machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB891846A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306471A (en) * | 2018-03-06 | 2018-07-20 | 崔金益 | A kind of threephase asynchronous machine winding construction |
-
1960
- 1960-01-18 GB GB177060A patent/GB891846A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306471A (en) * | 2018-03-06 | 2018-07-20 | 崔金益 | A kind of threephase asynchronous machine winding construction |
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