GB958231A - Improvements in or relating to speed control of alternating current motors - Google Patents

Improvements in or relating to speed control of alternating current motors

Info

Publication number
GB958231A
GB958231A GB3821260A GB3821260A GB958231A GB 958231 A GB958231 A GB 958231A GB 3821260 A GB3821260 A GB 3821260A GB 3821260 A GB3821260 A GB 3821260A GB 958231 A GB958231 A GB 958231A
Authority
GB
United Kingdom
Prior art keywords
relating
alternating current
speed control
current motors
slip
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
GB3821260A
Inventor
Graham Makerpeace Clark
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.)
Brentford Transformers Ltd
Original Assignee
Brentford Transformers 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 Brentford Transformers Ltd filed Critical Brentford Transformers Ltd
Priority to GB3821260A priority Critical patent/GB958231A/en
Publication of GB958231A publication Critical patent/GB958231A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/28—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring using magnetic devices with controllable degree of saturation, e.g. transductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

958,231. Control of A.C. motors. BRENTFORD TRANSFORMERS Ltd. April 13, 1961 [Nov. 7, 1960], No. 38212/60. Heading H2J. [Also in Division G3] An auto-self-excited transductor SR is arranged in the rotor circuit of an induction motor M and has a control winding DC energized by the slip voltage rectified and backed by a constant voltage derived from the A.C. mains. The slip voltage appears across a variable resistor VR by which the motor speed is regulated; the constant voltage appears across a resistor A. Alternatively, the output of a tachogenerator may be used instead of the slip voltage.
GB3821260A 1960-11-07 1960-11-07 Improvements in or relating to speed control of alternating current motors Expired GB958231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3821260A GB958231A (en) 1960-11-07 1960-11-07 Improvements in or relating to speed control of alternating current motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3821260A GB958231A (en) 1960-11-07 1960-11-07 Improvements in or relating to speed control of alternating current motors

Publications (1)

Publication Number Publication Date
GB958231A true GB958231A (en) 1964-05-21

Family

ID=10401986

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3821260A Expired GB958231A (en) 1960-11-07 1960-11-07 Improvements in or relating to speed control of alternating current motors

Country Status (1)

Country Link
GB (1) GB958231A (en)

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