GB928514A - Improvements in and relating to electric motor control systems - Google Patents

Improvements in and relating to electric motor control systems

Info

Publication number
GB928514A
GB928514A GB36406/58A GB3640658A GB928514A GB 928514 A GB928514 A GB 928514A GB 36406/58 A GB36406/58 A GB 36406/58A GB 3640658 A GB3640658 A GB 3640658A GB 928514 A GB928514 A GB 928514A
Authority
GB
United Kingdom
Prior art keywords
voltage
thyratrons
electric motor
nov
armature
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
GB36406/58A
Inventor
John Cooper Rankin
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB36406/58A priority Critical patent/GB928514A/en
Publication of GB928514A publication Critical patent/GB928514A/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
    • H02P7/24—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 discharge tubes or semiconductor devices
    • H02P7/28—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 discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—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 discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/292—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 discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC
    • H02P7/293—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 discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC using phase control

Abstract

928,514. Control of D.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 2, 1959 [Nov. 12, 1958], No. 36406/58. Class 38 (3). [Also in Group XXXV] A voltage indicating the speed of an electric motor, such as the armature voltage, is applied across potentiometer 5 and, when this voltage exceeds a predetermined value, Zener diodes 4 break down to energize a control winding CC of magnetic amplifier 3. This varies the potential at the star-point of a three-phase transformer 2 to reduce the voltage provided by thyratrons 1 for the motor field excitation. The armature of the motor may be connected to an A.C. supply through thyratrons controlled in accordance with the difference between a reference voltage and a speed-responsive voltage. The thyratrons 1 may be replaced by saturable reactors with amplifiers, and valve or transistor amplifiers may be substituted for the magnetic amplifier 3. Specification 879,928 is referred to.
GB36406/58A 1958-11-12 1958-11-12 Improvements in and relating to electric motor control systems Expired GB928514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB36406/58A GB928514A (en) 1958-11-12 1958-11-12 Improvements in and relating to electric motor control systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36406/58A GB928514A (en) 1958-11-12 1958-11-12 Improvements in and relating to electric motor control systems

Publications (1)

Publication Number Publication Date
GB928514A true GB928514A (en) 1963-06-12

Family

ID=10387843

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36406/58A Expired GB928514A (en) 1958-11-12 1958-11-12 Improvements in and relating to electric motor control systems

Country Status (1)

Country Link
GB (1) GB928514A (en)

Similar Documents

Publication Publication Date Title
ES258210A1 (en) Motor control systems
GB1010668A (en) Improvements relating to electrical proportional control systems
GB897954A (en) Improvements relating to dynamic braking of a.c. motors
GB833965A (en) Improvements in or relating to control systems for regulating the line voltage of a power source or power line
GB928514A (en) Improvements in and relating to electric motor control systems
GB987006A (en) Motor control system with cross-over circuit
GB912875A (en) Electric power supply systems for motor vehicles
GB928019A (en) A device for weakening the field of direct-current serieswound motors
GB918658A (en) A speed-regulating system for an electric motor
GB1056594A (en) A high speed winding collet
GB856760A (en) Control systems for electric motors
GB1058856A (en) Alternating current voltage control arrangement
ES215849A1 (en) Improvements relating to electric motor control systems
GB1089800A (en) Improvements in or relating to the control of d.c. machines
GB943783A (en) Improvements in and relating to generating plants for vehicles
GB909562A (en) Electric motor control systems
GB810119A (en) Improvements relating to the control of electric motors
GB1003312A (en) Improvements in variable speed electric drives
GB989492A (en) Improvements in or relating to battery charging systems for vehicles
GB1000274A (en) Improvements in and relating to control systems for dynamo-electric machines
GB803615A (en) Improvements in or relating to electrical control systems
GB553082A (en) Improvements in control systems for associated dynamo-electric machines particularly applicable to rolling mill drives
GB842699A (en) Improvements relating to electric control systems
GB617754A (en) Improvements in or relating to electric motor control systems
GB749220A (en) Improvements in or relating to electric motor control systems