GB684530A - Improvements relating to ward-leonard motor speed regulation systems - Google Patents

Improvements relating to ward-leonard motor speed regulation systems

Info

Publication number
GB684530A
GB684530A GB1079/51A GB107951A GB684530A GB 684530 A GB684530 A GB 684530A GB 1079/51 A GB1079/51 A GB 1079/51A GB 107951 A GB107951 A GB 107951A GB 684530 A GB684530 A GB 684530A
Authority
GB
United Kingdom
Prior art keywords
ward
motor speed
speed regulation
improvements relating
regulation systems
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
GB1079/51A
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 GB684530A publication Critical patent/GB684530A/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
    • H02P7/06—Arrangements 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
    • H02P7/18—Arrangements 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
    • H02P7/34—Arrangements 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Multiple Motors (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

684,530. Automatic speed control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 15, 1951. [Jan. 21, 1950], No. 1079/51. Drawings to Specification. Class 38 (iv). The field of a Ward-Leonard generator is energized through grid-controlled rectifiers in accordance with the difference between a reference voltage and a voltage proportional to the motor speed. The speed voltage comprises the motor terminal voltage plus the I.R. drop across a series resistor to give the true B.E.M.F.
GB1079/51A 1950-01-21 1951-01-15 Improvements relating to ward-leonard motor speed regulation systems Expired GB684530A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US684530XA 1950-01-21 1950-01-21

Publications (1)

Publication Number Publication Date
GB684530A true GB684530A (en) 1952-12-17

Family

ID=22082667

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1079/51A Expired GB684530A (en) 1950-01-21 1951-01-15 Improvements relating to ward-leonard motor speed regulation systems

Country Status (1)

Country Link
GB (1) GB684530A (en)

Similar Documents

Publication Publication Date Title
GB960992A (en) Series motor control
GB1106800A (en) Controller
GB1255225A (en) A control circuit for an alternating current motor
GB1437087A (en) Generator control circuits
GB1187079A (en) Improvements in Electromagnetic Clutch Control.
GB684530A (en) Improvements relating to ward-leonard motor speed regulation systems
GB1174650A (en) Circuit Apparatus
GB1181646A (en) Speed Control System for a D.C. Electric Motor
GB1480063A (en) Control circuits for electrically driven vehicles
GB1447778A (en) Speed control circuit for a universal motor
GB1246820A (en) Power supply for a stepping motor
GB860061A (en) Improvements in devices for limiting the power losses in direct current control devic
GB673114A (en) Improvements in and relating to electronic speed control systems for series motors
GB709768A (en) An improved arrangement for regulating the speed of rolling-mill motors
GB1106829A (en) Speed control reference signal generators for lift drives
GB678835A (en) Improvements in and relating to electric motor control systems
GB1090607A (en) Motor control circuit for d.c. shunt motor using controlled rectifiers
GB706414A (en) Improvements in and relating to the control of ward-leonard systems driving winding engines
GB1193005A (en) Speed Control Circuit for Single Phase Commutator Electric Motor
GB885563A (en) Improvements in or relating to direct current motor control
GB1003665A (en) Improvements in or relating to electric motor systems
GB620850A (en) Improvements in electrical speed responsive means
GB1173648A (en) Electric Motor Control System.
GB660698A (en) A system for supplying alternating current circuits under constant voltage and frequency from a source of variable voltage direct current
GB681316A (en) Automatic dynamic braking compensation system for a.c. electric motors