GB1015103A - Alternating current electric motors - Google Patents
Alternating current electric motorsInfo
- Publication number
- GB1015103A GB1015103A GB786264A GB786264A GB1015103A GB 1015103 A GB1015103 A GB 1015103A GB 786264 A GB786264 A GB 786264A GB 786264 A GB786264 A GB 786264A GB 1015103 A GB1015103 A GB 1015103A
- Authority
- GB
- United Kingdom
- Prior art keywords
- winding
- pitch
- windings
- concentric
- coil
- 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
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Abstract
1,015,103. Winding layouts for electric motors. HITACHI Ltd. Feb. 25, 1964 [March 4, 1963; April 22, 1963; Aug. 31, 1963], No. 7862/64. Heading H2A. Concentric pole windings producing successive poles in a motor stator winding are of alternately long and short pitch, or expressed another way, each phase band consists of a major part belonging to a concentric winding having a greater maximum pitch, and a minor part belonging to a coil or concentric winding of smaller pitch than this. Thus, as shown, phase U has pole-windings Una, Unb and Unc, Und generating (say) north poles and of pitches nine and seven slots respectively, and pole windings Usa, Usb generating south poles and of pitch seven slots only. The use of this shortpitched coil saves copper and reduces leakage, and it may be further short-pitched so that its sides are not contiguous with those of the main coils. The inner coil of the main winding may be omitted. Various other arrangements are described. The motor may be of split-phase type, and the windings may be graded.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1012163 | 1963-03-04 | ||
| JP2014163 | 1963-04-22 | ||
| JP4688663 | 1963-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1015103A true GB1015103A (en) | 1965-12-31 |
Family
ID=27278845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB786264A Expired GB1015103A (en) | 1963-03-04 | 1964-02-25 | Alternating current electric motors |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH409101A (en) |
| GB (1) | GB1015103A (en) |
-
1964
- 1964-02-25 GB GB786264A patent/GB1015103A/en not_active Expired
- 1964-03-03 CH CH265764A patent/CH409101A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH409101A (en) | 1966-03-15 |
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