GB235885A - Improvements in and relating to electric control systems - Google Patents

Improvements in and relating to electric control systems

Info

Publication number
GB235885A
GB235885A GB15680/25A GB1568025A GB235885A GB 235885 A GB235885 A GB 235885A GB 15680/25 A GB15680/25 A GB 15680/25A GB 1568025 A GB1568025 A GB 1568025A GB 235885 A GB235885 A GB 235885A
Authority
GB
United Kingdom
Prior art keywords
resistance
motor
slip
rings
relating
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
GB15680/25A
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 GB235885A publication Critical patent/GB235885A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/02—Synchronous motors
    • H02K19/10—Synchronous motors for multi-phase current
    • H02K19/12—Synchronous motors for multi-phase current characterised by the arrangement of exciting windings, e.g. for self-excitation, compounding or pole-changing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)

Abstract

235,885. British Thomson-Houston Co., Ltd., (Assignees of Bany, H.). June 17, 1924, [Convention date]. Systems for alternating-current motors only.- In starting a synchronous motor as an induction motor with unexcited field and automatically switching-on exciting current when synchronous speed is attained, the motor 1 supplied through a tapped transformer 5 has its field winding sliprings 7 connected so as to energize a relay coil 17 which acts in conjunction with a voltage relay 16 to connect the slip-rings to an exciter generator 10. A transformer 23 is preferably used to interlinl: the slip-rings with the coil 17. The arrangement comprises a discharge resistance 21, an economy resistance 30, and an exciter fieldweakening resistance 27.
GB15680/25A 1924-06-17 1925-06-17 Improvements in and relating to electric control systems Expired GB235885A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US235885XA 1924-06-17 1924-06-17

Publications (1)

Publication Number Publication Date
GB235885A true GB235885A (en) 1925-09-17

Family

ID=21816048

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15680/25A Expired GB235885A (en) 1924-06-17 1925-06-17 Improvements in and relating to electric control systems

Country Status (1)

Country Link
GB (1) GB235885A (en)

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