GB706414A - Improvements in and relating to the control of ward-leonard systems driving winding engines - Google Patents

Improvements in and relating to the control of ward-leonard systems driving winding engines

Info

Publication number
GB706414A
GB706414A GB30446/50A GB3044650A GB706414A GB 706414 A GB706414 A GB 706414A GB 30446/50 A GB30446/50 A GB 30446/50A GB 3044650 A GB3044650 A GB 3044650A GB 706414 A GB706414 A GB 706414A
Authority
GB
United Kingdom
Prior art keywords
voltage
speed
ward
control
representative
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
GB30446/50A
Inventor
Thomas Hayes Petch
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
Priority to GB30446/50A priority Critical patent/GB706414A/en
Publication of GB706414A publication Critical patent/GB706414A/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
    • H02P7/18Arrangements 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 by master control with auxiliary power
    • H02P7/34Arrangements 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 by master control with auxiliary power using Ward-Leonard arrangements
    • H02P7/347Arrangements 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 by master control with auxiliary power using Ward-Leonard arrangements in which only the generator field is controlled

Abstract

706,414. Automatic speed control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 26, 1951 [Dec. 13, 1950], No. 30446/50. Drawings to Specification. Class 38 (4) The invention relates to Ward-Leonard systems for controlling speed in response to the difference between a reference voltage and a speed representative voltage, the normal speed voltage being greater than the main-generator-exciter system voltage. The speed-representative-voltage is taken from a potentiometer across, e.g. the main generator, and is maintained at a substantially constant value at all speeds, while the voltage across generator rises as the potentiometer tapping is reduced at high speed. Thereby the full generated voltage is used at low speeds, and provides close control. The speed-representative voltage may alternatively be provided by a tachogenerator, and the exciter may be an amplidyne or magnetic amplifier.
GB30446/50A 1950-12-13 1950-12-13 Improvements in and relating to the control of ward-leonard systems driving winding engines Expired GB706414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB30446/50A GB706414A (en) 1950-12-13 1950-12-13 Improvements in and relating to the control of ward-leonard systems driving winding engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30446/50A GB706414A (en) 1950-12-13 1950-12-13 Improvements in and relating to the control of ward-leonard systems driving winding engines

Publications (1)

Publication Number Publication Date
GB706414A true GB706414A (en) 1954-03-31

Family

ID=10307814

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30446/50A Expired GB706414A (en) 1950-12-13 1950-12-13 Improvements in and relating to the control of ward-leonard systems driving winding engines

Country Status (1)

Country Link
GB (1) GB706414A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888621A (en) * 1956-04-09 1959-05-26 Westinghouse Electric Corp Electric drive
US3045161A (en) * 1957-05-28 1962-07-17 Allis Louis Co Motor speed regulator arrangement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888621A (en) * 1956-04-09 1959-05-26 Westinghouse Electric Corp Electric drive
US3045161A (en) * 1957-05-28 1962-07-17 Allis Louis Co Motor speed regulator arrangement

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