GB359880A - Improvements in and relating to electric motor control systems - Google Patents

Improvements in and relating to electric motor control systems

Info

Publication number
GB359880A
GB359880A GB16482/31A GB1648231A GB359880A GB 359880 A GB359880 A GB 359880A GB 16482/31 A GB16482/31 A GB 16482/31A GB 1648231 A GB1648231 A GB 1648231A GB 359880 A GB359880 A GB 359880A
Authority
GB
United Kingdom
Prior art keywords
motor
resistance
synchronous
machines
speed
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
GB16482/31A
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 GB359880A publication Critical patent/GB359880A/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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/02—Exposure apparatus for contact printing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

359,880. Maintaining proportional speeds. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) June 5, 1931, No. 16482. Convention date, June 6, 1930. [Class 38 (iii).] Field control.-For maintaining definite speed relations between the several motors driving, for example, the separate units of a paper-making machine, a compressible carbon resistance is used as the synchronization regulating device. A synchronous motor h connected to a supply g common to the synchronous motors associated with all the units, drives the casing of a compressible carbon resistance b, a power screw k for the resistance being driven by the working motor a through coned pulleys d, e. If the speed of the motor a varies, relative motion between the screw k, and the casing of the resistance occurs, and the resistance b in the motor field circuit is varied to bring the speed of the motor a back to its proper value. The machines h may be synchronous machines designed to run synchronously as reaction machines. In a modification, Fig. 2 (not shown), the rotor of the motor h is driven from the motor a, and its " stator " is arranged to actuate the resistance b. The invention is stated to be applicable to a mechanical synchronization regulating device using a leading shaft, and differential gear.
GB16482/31A 1930-06-06 1931-06-05 Improvements in and relating to electric motor control systems Expired GB359880A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE359880X 1904-12-12

Publications (1)

Publication Number Publication Date
GB359880A true GB359880A (en) 1931-10-29

Family

ID=6291319

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16482/31A Expired GB359880A (en) 1930-06-06 1931-06-05 Improvements in and relating to electric motor control systems

Country Status (2)

Country Link
FR (1) FR359880A (en)
GB (1) GB359880A (en)

Also Published As

Publication number Publication date
FR359880A (en) 1906-04-06

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