GB929543A - Control of induction motors - Google Patents

Control of induction motors

Info

Publication number
GB929543A
GB929543A GB2794159A GB2794159A GB929543A GB 929543 A GB929543 A GB 929543A GB 2794159 A GB2794159 A GB 2794159A GB 2794159 A GB2794159 A GB 2794159A GB 929543 A GB929543 A GB 929543A
Authority
GB
United Kingdom
Prior art keywords
field
winding
zero
induction motor
bias
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
GB2794159A
Inventor
Harold Edward Cameron Clapham
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.)
Bruce Peebles and Co Ltd
Original Assignee
Bruce Peebles and 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 Bruce Peebles and Co Ltd filed Critical Bruce Peebles and Co Ltd
Priority to GB2794159A priority Critical patent/GB929543A/en
Publication of GB929543A publication Critical patent/GB929543A/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
    • H02K17/34—Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter
    • H02K17/40—Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter with a rotary AC/DC converter

Abstract

929,543. Control of motors. BRUCE PEEBLES & CO. Ltd. Aug. 11, 1960 [Aug. 14, 1959], No. 27941/59. Class 38 (3). The rotor winding of an induction motor 1 is connected through rectifiers 4 to the armature 2 of a D.C. machine, which is coupled to the induction motor, and whose field (and hence the back e.m.f.) may be reduced to zero and then reversed. By this means the resultant voltage at the D.C. side of the rectifiers may be brought to zero, enabling the induction motor to reach a speed close to that obtained if the rotor windings, were short-circuited. The field may comprise a separately excited main winding 5 with or without an opposing bias winding 6, and with or without an opposing series bias winding 7. When bias windings are used reversal of the resultant field is attained without switching, by reducing the current in main field 5 to zero. Reference has been directed by the Comptroller to Specifications 868,763 and 875,379.
GB2794159A 1959-08-14 1959-08-14 Control of induction motors Expired GB929543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2794159A GB929543A (en) 1959-08-14 1959-08-14 Control of induction motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2794159A GB929543A (en) 1959-08-14 1959-08-14 Control of induction motors

Publications (1)

Publication Number Publication Date
GB929543A true GB929543A (en) 1963-06-26

Family

ID=10267744

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2794159A Expired GB929543A (en) 1959-08-14 1959-08-14 Control of induction motors

Country Status (1)

Country Link
GB (1) GB929543A (en)

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