GB386714A - Improvements in and relating to electric motor control systems - Google Patents

Improvements in and relating to electric motor control systems

Info

Publication number
GB386714A
GB386714A GB25960/31A GB2596031A GB386714A GB 386714 A GB386714 A GB 386714A GB 25960/31 A GB25960/31 A GB 25960/31A GB 2596031 A GB2596031 A GB 2596031A GB 386714 A GB386714 A GB 386714A
Authority
GB
United Kingdom
Prior art keywords
motors
devices
speed
sept
equalizing devices
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
GB25960/31A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB386714A publication Critical patent/GB386714A/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
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/50—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing electrical values representing the speeds

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Multiple Motors (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

386,714. Maintaining proportional speeds. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Sept. 16, 1931, No. 25960. Convention date, Sept. 18, 1930. Drawings to Specification. [Class 38 (iii).] In a multi-motor drive for paper-making machines, the motors of the first or second drying group are provided with speed equalizing devices, but the motors of the intermediate drives are operated without such devices. The speed equalizing devices may be of the electrical differential type, with coned pulley drives. Some or all of the motors which have no speed equalizing devices are compound wound, and may be provided with adjustable field resistances. The tension adjusting means of the calender speed regulating device may be driven by a motor controlled by a relay responsive to the armature and field currents of the motor driving the first or second drying group.
GB25960/31A 1930-09-18 1931-09-16 Improvements in and relating to electric motor control systems Expired GB386714A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE386714X 1930-09-18

Publications (1)

Publication Number Publication Date
GB386714A true GB386714A (en) 1933-01-26

Family

ID=6371019

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25960/31A Expired GB386714A (en) 1930-09-18 1931-09-16 Improvements in and relating to electric motor control systems

Country Status (1)

Country Link
GB (1) GB386714A (en)

Similar Documents

Publication Publication Date Title
GB386714A (en) Improvements in and relating to electric motor control systems
GB1133730A (en) Improvements relating to the unwinding and winding of yarn bands and webs of material
US2498234A (en) Drive system
US2845586A (en) Motor control systems
US1527637A (en) Segregated drive for paper-making machines and the like
US1278192A (en) Method of and apparatus for proportioning the load between a plurality of series motors.
GB392991A (en) Improvements in and relating to systems of electric motor control
US2094377A (en) Control system
US1982338A (en) Acceleration control means
US1743246A (en) Regulator system
GB292478A (en) Improvements in or relating to speed controlling mechanisms for motor drives
GB380085A (en) Improvements in and relating to electric motor control systems
GB337719A (en)
GB719654A (en) Improvements in or relating to control arrangements for electric locomotives
GB478610A (en) Improvements in and relating to electric drives for rolling mills
GB427868A (en) Apparatus for actuating or controlling electrically operated machines
US1805502A (en) Control system for dynamo-electric machines
GB209850A (en) Improvements in and relating to speed controlling system for motors and the like
GB252795A (en) Means for controlling the speeds of a number of electric motors
GB248503A (en) Improvements in and relating to systems of electric motor control
GB655253A (en) Improvements in and relating to sectional machine drives
GB434899A (en) Improvements in and relating to electric drives for machines or machine parts working with a constant speed ratio
GB213972A (en) Improvements in and relating to drives for paper making machines and the like
GB334014A (en) Improvements in and relating to systems of electric motor control
GB186470A (en) Improvements in and relating to electric drives for paper machines and the like