GB170984A - Improvements in and relating to electric motor control - Google Patents

Improvements in and relating to electric motor control

Info

Publication number
GB170984A
GB170984A GB24262/20A GB2426220A GB170984A GB 170984 A GB170984 A GB 170984A GB 24262/20 A GB24262/20 A GB 24262/20A GB 2426220 A GB2426220 A GB 2426220A GB 170984 A GB170984 A GB 170984A
Authority
GB
United Kingdom
Prior art keywords
circuit
braking
contactors
breaker
case
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
GB24262/20A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to GB24262/20A priority Critical patent/GB170984A/en
Publication of GB170984A publication Critical patent/GB170984A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

170,984. British Thomson - Houston Co., Ltd., (General Electric Co.). Aug. 20, 1920. Systems for continuous-current motors only: electric braking.-In controlling a shunt-wound motor A, driving a planing-machine or the like,. by means of a pair of reversing contactors F, R, provision is made for exerting a powerful dynamic braking effect upon the motor in case one of the contactors fails to open when required. The effect is obtained by moving the master switch S so as to close the open contactor, thus making a momentary short-circuit across the mains, and providing a circuit-breaker C, B which immediately responds and cuts off the supply. The circuit-breaker may, as shown, be provide'd with auxiliary contacts 11, 12 which co-operate with a braking contactor B to establish another braking circuit including a, resistance R in case the reversing contactors behave normally.
GB24262/20A 1920-08-20 1920-08-20 Improvements in and relating to electric motor control Expired GB170984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB24262/20A GB170984A (en) 1920-08-20 1920-08-20 Improvements in and relating to electric motor control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24262/20A GB170984A (en) 1920-08-20 1920-08-20 Improvements in and relating to electric motor control

Publications (1)

Publication Number Publication Date
GB170984A true GB170984A (en) 1921-11-10

Family

ID=10208948

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24262/20A Expired GB170984A (en) 1920-08-20 1920-08-20 Improvements in and relating to electric motor control

Country Status (1)

Country Link
GB (1) GB170984A (en)

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