GB455844A - Improvements in and relating to means for automatically controlling the voltage of an a.c. circuit - Google Patents

Improvements in and relating to means for automatically controlling the voltage of an a.c. circuit

Info

Publication number
GB455844A
GB455844A GB7872/36A GB787236A GB455844A GB 455844 A GB455844 A GB 455844A GB 7872/36 A GB7872/36 A GB 7872/36A GB 787236 A GB787236 A GB 787236A GB 455844 A GB455844 A GB 455844A
Authority
GB
United Kingdom
Prior art keywords
selector
motor
supply
operating
voltage
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
GB7872/36A
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 GB455844A publication Critical patent/GB455844A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10Regulating voltage or current
    • G05F1/12Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/14Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

455,844. Automatic control systems. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. March 16, 1936, No. 7872. Convention date, March 15, 1935. [Class 38 (iv)] Electromotive force. -Comprises a regulating arrangement in which the voltage of an A.C. supply is adjusted in dependence on the variations of the third harmonic voltage obtained from the open-delta secondary of a transformer connected to the supply. In one form the harmonic voltage operates a relay which controls a motor for adjusting a transformer selector switch. In a modification the harmonic voltage is supplied directly to the motor operating the selector, the motor having applied to it a counter torque so that upon difference of the torques the selector is actuated. The counter torque may be supplied by an opposed motor g connected to the supply, the shaft f operating the selector or operating a switch controlling the selector motor. In a further modification the two motors run continuously and are connected through a differential gear.
GB7872/36A 1935-03-15 1936-03-16 Improvements in and relating to means for automatically controlling the voltage of an a.c. circuit Expired GB455844A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE455844X 1935-03-15

Publications (1)

Publication Number Publication Date
GB455844A true GB455844A (en) 1936-10-28

Family

ID=6539095

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7872/36A Expired GB455844A (en) 1935-03-15 1936-03-16 Improvements in and relating to means for automatically controlling the voltage of an a.c. circuit

Country Status (1)

Country Link
GB (1) GB455844A (en)

Similar Documents

Publication Publication Date Title
GB455844A (en) Improvements in and relating to means for automatically controlling the voltage of an a.c. circuit
US1628409A (en) Control system for electric motors
GB400673A (en) Improvements in or relating to the provision of heating apparatus on petrol-electric and like vehicles
US2116378A (en) Control system
GB395011A (en) Improvements in and relating to speed regulating systems
GB397574A (en) Improvements in speed regulation of direct current motors
GB575283A (en) Improvements in or relating to dynamo speed controlling devices
GB493347A (en) Improvements in regulating devices for electric drives
GB346400A (en) Improvements in and relating to dynamo electric machines
GB440498A (en) Improvements in systems for automatically controlling the speed of electric motor driven hoists and the like
GB513621A (en) Improvements in and relating to the automatic speed regulation of rotating machinery
GB512361A (en) Improvements in and relating to electric motor control systems
GB424547A (en) Improvements in and relating to electric motors
GB466679A (en) Improvements relating to electric clocks
GB500488A (en) Improvements in and relating to electric motor speed control systems
GB463040A (en) Improvements in and relating to methods of and means for automatically controlling acceleration and deceleration
GB641742A (en) Improvements in or relating to electrical voltage regulating systems for rotary alternating electric generating systems
GB469386A (en) Improvements in or relating to the automatic frequency regulation of alternating current supplies
GB445800A (en) Improvements in or relating to refining pulps, fibrous or porous materials
GB564207A (en) Improvements in or relating to electric motor controllers
GB758344A (en) Improvements in and relating to the control of electrically operated winding or like mechanisms
GB413704A (en) Improvements in and relating to systems of electric motor control
GB710059A (en) Improvements in and relating to electric motor control systems
GB399483A (en) Improvements relating to electric motor control gear
GB579157A (en) Improvements in or relating to electrically-operated remote-control or indicating apparatus