GB623988A - Improvements in and relating to electric motor control - Google Patents

Improvements in and relating to electric motor control

Info

Publication number
GB623988A
GB623988A GB784545A GB784545A GB623988A GB 623988 A GB623988 A GB 623988A GB 784545 A GB784545 A GB 784545A GB 784545 A GB784545 A GB 784545A GB 623988 A GB623988 A GB 623988A
Authority
GB
United Kingdom
Prior art keywords
motor
speed
voltage
coil
pile
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
GB784545A
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.)
ARTHUR HOSSLE
DOUGLAS HARRY GRAHAM
British Thomson Houston Co Ltd
Original Assignee
ARTHUR HOSSLE
DOUGLAS HARRY GRAHAM
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 ARTHUR HOSSLE, DOUGLAS HARRY GRAHAM, British Thomson Houston Co Ltd filed Critical ARTHUR HOSSLE
Priority to GB784545A priority Critical patent/GB623988A/en
Publication of GB623988A publication Critical patent/GB623988A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current

Abstract

623,988. Automatic control systems. BRITISH THOMSON-HOUSTON CO., Ltd., GRAHAM, D. H., and HOSSLE, A. March 28, 1945, No. 7845. [Class 38 (iv)] Voltage.-A speed controller for an electric motor comprises a carbon pile having a control coil in parallel with the motor shunt field coil and both coils in series with a variable resistance. As shown, a carbon pile regulator A, B maintains constant voltage across control coil B (1, 2) and field coil F (1, 2) and with variable resistance R at zero the motor armature (3, 2) will receive the same voltage and the motor will run at the minimum speed. As R is increased the carbon pile A will absorb less volts in maintaining constant voltage across 1, 2, thus increasing the voltage across 3, 2 and therefore the motor speed. A bucking series field winding S may be included so that motor speed is substantially independent of motor load. In a modification, arcing between the sheets of the pile due to rapid changing from top to low speed is prevented by shunting a relatively high resistance across it.
GB784545A 1945-03-28 1945-03-28 Improvements in and relating to electric motor control Expired GB623988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB784545A GB623988A (en) 1945-03-28 1945-03-28 Improvements in and relating to electric motor control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB784545A GB623988A (en) 1945-03-28 1945-03-28 Improvements in and relating to electric motor control

Publications (1)

Publication Number Publication Date
GB623988A true GB623988A (en) 1949-05-26

Family

ID=9840885

Family Applications (1)

Application Number Title Priority Date Filing Date
GB784545A Expired GB623988A (en) 1945-03-28 1945-03-28 Improvements in and relating to electric motor control

Country Status (1)

Country Link
GB (1) GB623988A (en)

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