GB978099A - Kramer system - Google Patents

Kramer system

Info

Publication number
GB978099A
GB978099A GB4734962A GB4734962A GB978099A GB 978099 A GB978099 A GB 978099A GB 4734962 A GB4734962 A GB 4734962A GB 4734962 A GB4734962 A GB 4734962A GB 978099 A GB978099 A GB 978099A
Authority
GB
United Kingdom
Prior art keywords
machine
dec
switch
coupled
motor
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
GB4734962A
Inventor
Harold Edward Cameron Clapham
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.)
Bruce Peebles and Co Ltd
Original Assignee
Bruce Peebles and 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 Bruce Peebles and Co Ltd filed Critical Bruce Peebles and Co Ltd
Priority to GB4734962A priority Critical patent/GB978099A/en
Publication of GB978099A publication Critical patent/GB978099A/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
    • H02K17/02—Asynchronous induction motors
    • H02K17/34—Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter
    • H02K17/40—Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter with a rotary AC/DC converter

Landscapes

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

Abstract

978,099. Control of A.C. motors. BRUCE PEEBLES & CO. Ltd., and H. E. C. CLAPHAM. Dec. 10, 1963 [Dec. 14, 1962], No. 47349/62. Heading H2J. An induction motor has a D.C. machine M on the same shaft, the secondary voltage from the A.C. motor being supplied through a rectifier to the armature of the D.C. machine. For operation at low speeds, a second D.C. machine A is provided with means for connecting it in series with the machine M. The speed is first reduced by applying full field to the machine M, and switch C is then closed and switch B is opened. During this switching operation, the voltage of the machine A is zero, but, as the field of the machine A is strengthened, the speed falls to a desired value. The machine A may be coupled to the shaft of the induction motor, or may be coupled to an induction generator.
GB4734962A 1962-12-14 1962-12-14 Kramer system Expired GB978099A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4734962A GB978099A (en) 1962-12-14 1962-12-14 Kramer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4734962A GB978099A (en) 1962-12-14 1962-12-14 Kramer system

Publications (1)

Publication Number Publication Date
GB978099A true GB978099A (en) 1964-12-16

Family

ID=10444638

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4734962A Expired GB978099A (en) 1962-12-14 1962-12-14 Kramer system

Country Status (1)

Country Link
GB (1) GB978099A (en)

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