GB345785A - 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
GB345785A
GB345785A GB6389/30A GB638930A GB345785A GB 345785 A GB345785 A GB 345785A GB 6389/30 A GB6389/30 A GB 6389/30A GB 638930 A GB638930 A GB 638930A GB 345785 A GB345785 A GB 345785A
Authority
GB
United Kingdom
Prior art keywords
closed
contactor
motor
reverse
time
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
GB6389/30A
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 GB345785A publication Critical patent/GB345785A/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
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/24—Controlling the direction, e.g. clockwise or counterclockwise

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

345,785. Master control of A.C. motors ; electromagnetic relays. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Hardesty, L. C. ; 303, Sanders Avenue, Scotia, New York, U.S.A.) Feb. 26, 1930, No. 6389. Convention date, Feb 26, 1929. [Classes 38 (iii) and 38 (v).] Reversing; non-regenerative braking.-A motor 10 is controlled by " forward," " reverse," and " stop " push-buttons 14, 15, 16 respectively, so connected to time limiting devices 17, 18, that the motor is stopped by plugging it for a predetermined interval of time. By depressing button 14 momentarily the forward contactor 12 is closed and completes a maintaining circuit for itself, as well as connecting the motor 10 for forward running. By depressing button 15 momentarily, the forward contactor 12 is opened and the reverse contactor 13 is closed, completing a maintaining circuit for itself, and connecting the motor 10 for reverse running. By depressing the stop button 16, the particular contactor closed is opened, and the other one closed, the opening of the closed contactor initiating the operation of the particular time limiting device whose contacts are included in the circuit of the newly-closed contactor, so that the latter remains closed for a predetermined interval of time after which the motor is disconnected from the supply mains 11.
GB6389/30A 1929-02-26 1930-02-26 Improvements in and relating to systems of electric motor control Expired GB345785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US345785XA 1929-02-26 1929-02-26

Publications (1)

Publication Number Publication Date
GB345785A true GB345785A (en) 1931-04-02

Family

ID=21877297

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6389/30A Expired GB345785A (en) 1929-02-26 1930-02-26 Improvements in and relating to systems of electric motor control

Country Status (1)

Country Link
GB (1) GB345785A (en)

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