GB226329A - Improvements in induction motors - Google Patents

Improvements in induction motors

Info

Publication number
GB226329A
GB226329A GB2757423A GB2757423A GB226329A GB 226329 A GB226329 A GB 226329A GB 2757423 A GB2757423 A GB 2757423A GB 2757423 A GB2757423 A GB 2757423A GB 226329 A GB226329 A GB 226329A
Authority
GB
United Kingdom
Prior art keywords
poles
sections
point
starting
produce
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
Application number
GB2757423A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
F & A Parkinson Ltd
WILLIAM ALAN BENGER
Original Assignee
F & A Parkinson Ltd
WILLIAM ALAN BENGER
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by F & A Parkinson Ltd, WILLIAM ALAN BENGER filed Critical F & A Parkinson Ltd
Priority to GB2757423A priority Critical patent/GB226329A/en
Publication of GB226329A publication Critical patent/GB226329A/en
Expired legal-status Critical Current

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
    • H02K17/04—Asynchronous induction motors for single phase current
    • H02K17/06—Asynchronous induction motors for single phase current having windings arranged for permitting pole-changing

Abstract

226,329. Bender, W. A., and Parkinson, Ltd., F. & A. Nov. 2, 1923. Alternating-current induction machines; motors, controlling.-The stator winding of a single-phase induction motor comprises four sections, Fig. 1, arranged so that at starting the pair of sections AB, AD together produce a number of poles and the sections BC, BD produce a similar field angularly displaced from the field due to the first set; in the running condition, the current through one section of each pair is reversed without changing the connections of the sections with one another so that the combined sections produce a different number of poles. The necessary phase displacement at starting may be obtained by the use of condensers, choking coils, or a resistance EGF. At starting the lines are connected to the points E, C, and the point F is connected to the points B, D. In the running condition, the lines are connected to the points B, D. Fig. 2 shows a winding adapted to give 6 poles for starting and 4 poles for running. Winding ends 1, 5 correspond to point A, ends 2, 3 to point B, ends 7, 6 to point D, and ends 4, 8 to point C. When operating on the lower number of poles there are two slots at the centre of each pole in which the currents oppose each other. This arrangement is stated to produce a field form approaching a true sine wave.
GB2757423A 1923-11-02 1923-11-02 Improvements in induction motors Expired GB226329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2757423A GB226329A (en) 1923-11-02 1923-11-02 Improvements in induction motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2757423A GB226329A (en) 1923-11-02 1923-11-02 Improvements in induction motors

Publications (1)

Publication Number Publication Date
GB226329A true GB226329A (en) 1924-12-24

Family

ID=10261829

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2757423A Expired GB226329A (en) 1923-11-02 1923-11-02 Improvements in induction motors

Country Status (1)

Country Link
GB (1) GB226329A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145291A (en) * 1983-06-15 1985-03-20 Ass Elect Ind Variable pole brushless rotor winding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145291A (en) * 1983-06-15 1985-03-20 Ass Elect Ind Variable pole brushless rotor winding
US4628245A (en) * 1983-06-15 1986-12-09 Associated Electrical Industries Limited Multipolar excitation systems

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