GB1044257A - Circuit arrangements for the speed control of induction motors - Google Patents

Circuit arrangements for the speed control of induction motors

Info

Publication number
GB1044257A
GB1044257A GB890364A GB890364A GB1044257A GB 1044257 A GB1044257 A GB 1044257A GB 890364 A GB890364 A GB 890364A GB 890364 A GB890364 A GB 890364A GB 1044257 A GB1044257 A GB 1044257A
Authority
GB
United Kingdom
Prior art keywords
motors
induction motors
capacitor
speed control
circuit arrangements
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
GB890364A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1044257A publication Critical patent/GB1044257A/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
    • H02P25/24—Variable impedance in stator or rotor circuit
    • H02P25/26—Variable impedance in stator or rotor circuit with arrangements for controlling secondary impedance

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

1,044,257. Control of A.C. motors. LICENTIA PATENT - VERWALTUNGS G.m.b.H. March 3, 1964 [March 5, 1963; Aug. 9, 1963], No. 8903/64. Addition to 992,175. Heading H2J. The arrangement for controlling induction motors by varying the on/off periods of a semiconductor switch T R in the rotor circuit described in the parent Specification is modified by the replacement of the quenching circuit by a capacitor C L in series with the fixed resistor R. There is further described an arrangement (Fig. 4, not shown) for operating a plurality of motors with individual switches and resistors but a common capacitor; the switches are triggered in sequence so as to provide a uniform load on the capacitor.
GB890364A 1963-03-05 1964-03-03 Circuit arrangements for the speed control of induction motors Expired GB1044257A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEL0044276 1963-03-05
DEL0045567 1963-08-09

Publications (1)

Publication Number Publication Date
GB1044257A true GB1044257A (en) 1966-09-28

Family

ID=25985639

Family Applications (1)

Application Number Title Priority Date Filing Date
GB890364A Expired GB1044257A (en) 1963-03-05 1964-03-03 Circuit arrangements for the speed control of induction motors

Country Status (4)

Country Link
AT (1) AT242251B (en)
BE (1) BE644735A (en)
GB (1) GB1044257A (en)
SE (1) SE310213B (en)

Also Published As

Publication number Publication date
AT242251B (en) 1965-09-10
BE644735A (en) 1964-07-01
SE310213B (en) 1969-04-21

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