GB261144A - Control of electric motors - Google Patents

Control of electric motors

Info

Publication number
GB261144A
GB261144A GB2395325A GB2395325A GB261144A GB 261144 A GB261144 A GB 261144A GB 2395325 A GB2395325 A GB 2395325A GB 2395325 A GB2395325 A GB 2395325A GB 261144 A GB261144 A GB 261144A
Authority
GB
United Kingdom
Prior art keywords
motor
field
shunt
generator
steps
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
GB2395325A
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.)
JOHN VERNON PEACOCK
British Thomson Houston Co Ltd
Original Assignee
JOHN VERNON PEACOCK
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 JOHN VERNON PEACOCK, British Thomson Houston Co Ltd filed Critical JOHN VERNON PEACOCK
Priority to GB2395325A priority Critical patent/GB261144A/en
Publication of GB261144A publication Critical patent/GB261144A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • B66C13/23—Circuits for controlling the lowering of the load
    • B66C13/24—Circuits for controlling the lowering of the load by dc motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Multiple Motors (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

261,144. British Thomson-Houston Co., Ltd., Given, R. D., and Peacock, J. V. Sept. 25, 1925. Systems for continous current motors only.- In controlling a motor 22 for hoisting, excavat- ,ing, or other heavy work, by regulating a genera- -tor 20 which supplies the motor with current, each machine has a series field and a shunt or separately excited field, the two fields of the motor assisting each other and those of the generator opposing each other. During acceleration, resistance 28 is gradually cut out of the generator shunt field, and, after a certain number of steps, gradually inserted into the motor shunt field. The controller may have additional segments or resistances for effecting steps uf regenerative braking.
GB2395325A 1925-09-25 1925-09-25 Control of electric motors Expired GB261144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2395325A GB261144A (en) 1925-09-25 1925-09-25 Control of electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2395325A GB261144A (en) 1925-09-25 1925-09-25 Control of electric motors

Publications (1)

Publication Number Publication Date
GB261144A true GB261144A (en) 1926-11-18

Family

ID=10203997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2395325A Expired GB261144A (en) 1925-09-25 1925-09-25 Control of electric motors

Country Status (1)

Country Link
GB (1) GB261144A (en)

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