GB329517A - Improvements relating to alternating-current electric motors - Google Patents
Improvements relating to alternating-current electric motorsInfo
- Publication number
- GB329517A GB329517A GB16476/29A GB1647629A GB329517A GB 329517 A GB329517 A GB 329517A GB 16476/29 A GB16476/29 A GB 16476/29A GB 1647629 A GB1647629 A GB 1647629A GB 329517 A GB329517 A GB 329517A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slots
- plates
- winding
- cage
- tunnels
- 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
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/18—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having double-cage or multiple-cage rotors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
329,517. Jacoby, H. C. E., and Gilbert, N. W.. May 29, 1929. Alternating-current commutator and induction machines. - The rotor of an induction motor having a squirrel-cage and another winding, either of squirrel-cage or commutating type, is made by assembling laminae of two types one of which has deep open slots adapted to contain both windings and the other of which has shallower outer slots for one winding and inner piercings which form tunnels for the other winding. By apportioning the ratio of the two kinds of laminae in the core. the requisite reactance properties may be conferred upon the windings to give the motor a desired characteristic. Figs. 1 and 2 show one combination of laminµ comprising plates 0 with open-topped slots o having wide and narrow outer and inner portions o', o<2> respectively and plates B having wide outer slots b' and narrow inner tunnels b<2> which register with the slots of the plates 0. The complete rotor comprises a central portion of plates 0 and end-portions of plates B, a squirrel-cage being placed in the tunnels b<2> and slots o<2> and a commutator winding in the outer slots b<1>, o<1>. The cage winding has a high leakage inductance in the end-portions and a low inductance in the central part of the core. The inner tun. nels may be placed radially below some only of the slots in plates B and narrow air-slits may connect the slots and tunnels. Figs. 4 and 5 show a double squirrel-cage rotor with bars of circular section comprising end-packets of plates B with slots b<1> and tunnels b<2> and a central portion of plates 0 having outer slots similar to the slots b' alternating with wide slots o terminating in enlargements coincident with the tunnels b<2>. All the slots have narrow peripheral openings o<3>. The winding g has a high leakage inductance and the winding h a low inductance, the values of which depend upon the numbers of plates of each type employed. The Specification describes how a repulsion motor may be given a shunt motor speed characteristic and an improved power factor by employing a peripheral commutator winding and an inner squirrel-cage winding in a composite core as above described, the cage bars being arranged so as to produce no torque or only a slight torque at all speeds in core-sections such as B and full torque in sections such as 0.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB16476/29A GB329517A (en) | 1929-05-29 | 1929-05-29 | Improvements relating to alternating-current electric motors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB16476/29A GB329517A (en) | 1929-05-29 | 1929-05-29 | Improvements relating to alternating-current electric motors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB329517A true GB329517A (en) | 1930-05-22 |
Family
ID=10078024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16476/29A Expired GB329517A (en) | 1929-05-29 | 1929-05-29 | Improvements relating to alternating-current electric motors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB329517A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2141290A (en) * | 1983-03-10 | 1984-12-12 | James Millington | Improvements in and relating to induction motors |
CN105680654A (en) * | 2016-01-28 | 2016-06-15 | 珠海凌达压缩机有限公司 | Air conditioner, compressor and rotor of compressor |
-
1929
- 1929-05-29 GB GB16476/29A patent/GB329517A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2141290A (en) * | 1983-03-10 | 1984-12-12 | James Millington | Improvements in and relating to induction motors |
CN105680654A (en) * | 2016-01-28 | 2016-06-15 | 珠海凌达压缩机有限公司 | Air conditioner, compressor and rotor of compressor |
CN105680654B (en) * | 2016-01-28 | 2018-04-20 | 珠海凌达压缩机有限公司 | A kind of air conditioner, compressor and its rotor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1302307A (en) | ||
US1829686A (en) | Induction motor | |
GB329517A (en) | Improvements relating to alternating-current electric motors | |
US2037532A (en) | Induction motor secondary | |
GB1376539A (en) | Electrical machines | |
GB523311A (en) | Improvements in and relating to rotors for dynamo electric machines | |
GB280858A (en) | An improved synchronous electric motor | |
US3396295A (en) | Rotary electric machines | |
GB183612A (en) | Improvements in alternating current motors | |
US2246305A (en) | Damper winding | |
GB451569A (en) | Improvements in and relating to electric motors | |
Sastry et al. | Two-speed single-winding single-phase induction motor using nonintegral cycle modulation techniques | |
GB466936A (en) | Improvements in dynamo electric machines | |
GB680137A (en) | Improvements in or relating to electric motor | |
GB454139A (en) | Improvements in and relating to alternating current dynamo-electric machines, especially synchronous machines, for running at different speeds | |
GB175995A (en) | Improvements relating to alternating current machines | |
GB222861A (en) | Improvements in or relating to rotors for asynchronous motors | |
GB466719A (en) | Improvements in and relating to dynamo electric machines | |
GB299865A (en) | Improvements in or relating to induction motors | |
GB473515A (en) | Improvements in and relating to dynamo electric machines | |
JPS5649671A (en) | Repulsion start type single-phase induction motor | |
GB449202A (en) | Improvements in or relating to synchronous electric motors of the squirrel cage type | |
GB456887A (en) | Improvement in electric induction motors | |
GB292071A (en) | Improvements relating to alternating current motors with short-circuited armatures | |
GB494660A (en) | Improvements in or relating to induction-motors for single- or polyphase-currents |