GB688696A - Improvements in heteropolar inductor alternators - Google Patents

Improvements in heteropolar inductor alternators

Info

Publication number
GB688696A
GB688696A GB650750A GB650750A GB688696A GB 688696 A GB688696 A GB 688696A GB 650750 A GB650750 A GB 650750A GB 650750 A GB650750 A GB 650750A GB 688696 A GB688696 A GB 688696A
Authority
GB
United Kingdom
Prior art keywords
teeth
stator
rotor
pitch
zones
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
GB650750A
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.)
KENNETH FRANCIS RABY
British Thomson Houston Co Ltd
Original Assignee
KENNETH FRANCIS RABY
British Thomson Houston Co Ltd
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 KENNETH FRANCIS RABY, British Thomson Houston Co Ltd filed Critical KENNETH FRANCIS RABY
Priority to GB650750A priority Critical patent/GB688696A/en
Publication of GB688696A publication Critical patent/GB688696A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/22—Synchronous generators having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators
    • H02K19/24—Synchronous generators having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators with variable-reluctance soft-iron rotors without winding

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)

Abstract

688,696. Inductor alternators. BRITISH THOMSON-HOUSTON CO., Ltd., and RABY, K. F. Feb. 23, 1951 [March 15, 1950], No. 6507/50. Class 35. In a single-phase heteropolar inductor generator the relative arrangement of the stator and rotor slots and teeth are such as to produce alternate zones of relatively high and low reluctance in the air gap, the zones interchanging when the rotor R moves through one-half rotor slot pitch, and the pitch of the stator small teeth is different from that of the rotor teeth. In the known machine shown in Fig. 1, each coil of the exciting winding has its opposite sides located in alternate stator slots SE embracing the high and low reluctance zones, the A.C. winding being located in slots SG (only one is shown). Fig. 3 shows the stator having four large teeth each having a number of small teeth, the pitch of which is different from that of the rotor teeth. The pitch of the stator large teeth is an odd multiple of # radians electrical so as to obtain the required alternate zones of high and low reluctance. The object of the above arrangement is to reduce the E.M.F. harmonics of inductor generators. Specification 554,827 is referred to.
GB650750A 1950-03-15 1950-03-15 Improvements in heteropolar inductor alternators Expired GB688696A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB650750A GB688696A (en) 1950-03-15 1950-03-15 Improvements in heteropolar inductor alternators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB650750A GB688696A (en) 1950-03-15 1950-03-15 Improvements in heteropolar inductor alternators

Publications (1)

Publication Number Publication Date
GB688696A true GB688696A (en) 1953-03-11

Family

ID=9815774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB650750A Expired GB688696A (en) 1950-03-15 1950-03-15 Improvements in heteropolar inductor alternators

Country Status (1)

Country Link
GB (1) GB688696A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006064089A1 (en) * 2004-12-13 2006-06-22 Kone Corporation Reduction of harmonics in an electric motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006064089A1 (en) * 2004-12-13 2006-06-22 Kone Corporation Reduction of harmonics in an electric motor
US7675213B2 (en) 2004-12-13 2010-03-09 Kone Corporation Reduction of harmonics in an electric motor

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