GB478332A - Improvements in and relating to the control of the speed or frequency of an alternating current machine - Google Patents

Improvements in and relating to the control of the speed or frequency of an alternating current machine

Info

Publication number
GB478332A
GB478332A GB10365/36A GB1036536A GB478332A GB 478332 A GB478332 A GB 478332A GB 10365/36 A GB10365/36 A GB 10365/36A GB 1036536 A GB1036536 A GB 1036536A GB 478332 A GB478332 A GB 478332A
Authority
GB
United Kingdom
Prior art keywords
speed
control
voltage
motor
frequency
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
GB10365/36A
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.)
British Thomson Houston Co Ltd
Original Assignee
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB478332A publication Critical patent/GB478332A/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
    • H02K17/42—Asynchronous induction generators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

478,332. Automatic control systems; automatic regulation. BRITISH THOMSON-HOUSTON CO., Ltd. April 8, 1936, No. 10365. Void. Convention date, April 10, 1935. [Class 38 (iv)] Speed &c.-The nature of the invention to which the Specification relates is not clear. It purports to be the regulation or control of operating quantities by means of rotating direct or alternating current machines, the control being effected directly or indirectly by the voltage produced through self-excitation. Speed, pressure, heat, voltage and currentstrength are mentioned as operating quantities. To maintain constant the speed of a direct current motor GM an asynchronous generator AM couplied to it is self-excited at the desired speed by a condenser C and the output is supplied through a transformer T and rectifier GR to an auxiliary field winding H on the motor. A carbon pressure regulator in the field circuit of the motor may be controlled by the voltage of the machine AM. The Specification imperfectly describes the application of an asynchronous generator with two starconnected windings in parallel, and excited by a condenser connecting the star-points, to the control of the frequency and voltage of a network.
GB10365/36A 1935-04-10 1936-04-08 Improvements in and relating to the control of the speed or frequency of an alternating current machine Expired GB478332A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE478332X 1935-04-10

Publications (1)

Publication Number Publication Date
GB478332A true GB478332A (en) 1938-01-17

Family

ID=6542235

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10365/36A Expired GB478332A (en) 1935-04-10 1936-04-08 Improvements in and relating to the control of the speed or frequency of an alternating current machine

Country Status (1)

Country Link
GB (1) GB478332A (en)

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