GB204633A - Improvements in and relating to systems of electric motor control - Google Patents

Improvements in and relating to systems of electric motor control

Info

Publication number
GB204633A
GB204633A GB2919/23A GB291923A GB204633A GB 204633 A GB204633 A GB 204633A GB 2919/23 A GB2919/23 A GB 2919/23A GB 291923 A GB291923 A GB 291923A GB 204633 A GB204633 A GB 204633A
Authority
GB
United Kingdom
Prior art keywords
braking
motor
switch
current
contactor
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
GB2919/23A
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 GB2919/23A priority Critical patent/GB204633A/en
Publication of GB204633A publication Critical patent/GB204633A/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

Abstract

204,633. British Thomson-Houston Co., Ltd., (General Electric Co.). Jan. 31, 1923. Systems for continuous-current motors only; electric braking.-In order to obtain smooth reversal of a motor-driving planing or other reciprocating machinery, an electric braking effect is applied to the motor after current is cut off and iscontinued until after the supply has been re-connected in the opposite, direction. In the anangement shown, the motor 10 is connected to forward and reverse contactor switches 12, 13 and is provided with two braking switches 21, 22. When the forward contactor 12 is opened, a coil 14 connected in shunt with the motor armature closes the switch 21 which puts the motor in a rheostatic braking circuit with a resistance 15. As the current in the braking circuit decreases with decreasing speed, a series lock-out coil closes the second braking switch 22 and holds it closed after the first braking switch has opened and until closure of the reversing contactor 13 has annulled the currentin the lock-out coil.
GB2919/23A 1923-01-31 1923-01-31 Improvements in and relating to systems of electric motor control Expired GB204633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2919/23A GB204633A (en) 1923-01-31 1923-01-31 Improvements in and relating to systems of electric motor control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2919/23A GB204633A (en) 1923-01-31 1923-01-31 Improvements in and relating to systems of electric motor control

Publications (1)

Publication Number Publication Date
GB204633A true GB204633A (en) 1923-10-04

Family

ID=9748533

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2919/23A Expired GB204633A (en) 1923-01-31 1923-01-31 Improvements in and relating to systems of electric motor control

Country Status (1)

Country Link
GB (1) GB204633A (en)

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