GB307322A - Improvements in or relating to the control of electric motors - Google Patents

Improvements in or relating to the control of electric motors

Info

Publication number
GB307322A
GB307322A GB32746/27A GB3274627A GB307322A GB 307322 A GB307322 A GB 307322A GB 32746/27 A GB32746/27 A GB 32746/27A GB 3274627 A GB3274627 A GB 3274627A GB 307322 A GB307322 A GB 307322A
Authority
GB
United Kingdom
Prior art keywords
motor
winding
field
switched
disc
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
GB32746/27A
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 PLC
Original Assignee
General Electric Co PLC
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 PLC filed Critical General Electric Co PLC
Priority to GB32746/27A priority Critical patent/GB307322A/en
Publication of GB307322A publication Critical patent/GB307322A/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
    • H02P5/48—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 mechanical values representing the speeds
    • H02P5/49—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 mechanical values representing the speeds by intermittently closing or opening electrical contacts

Landscapes

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

Abstract

307,322. General Electric Co., Ltd., and Kahn, M. Dec. 5, 1927. Constant-speed control systems. - In order that a motor 2 may run at a constant speed relative to a master motor 1, a series field-winding 4 of the motor 2 is differentially compounded with a. shunt field-winding 6, and a correcting field-winding 9 is switched in positively or negatively whenever there is a sufficient angular difference between the positions of a segmental contact-disc 11 on the shaft of the motor 1 and a brush-carrier 17 driven by the motor 2. A number of motors may be similarly controlled from a common master motor. In a modification, the field-winding is switched in gradually through a stepped resistance 10, the different steps being connected to different segments of the disc 11. The invention is applied to motors driving elements of paper-making machinery.
GB32746/27A 1927-12-05 1927-12-05 Improvements in or relating to the control of electric motors Expired GB307322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB32746/27A GB307322A (en) 1927-12-05 1927-12-05 Improvements in or relating to the control of electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32746/27A GB307322A (en) 1927-12-05 1927-12-05 Improvements in or relating to the control of electric motors

Publications (1)

Publication Number Publication Date
GB307322A true GB307322A (en) 1929-03-05

Family

ID=10343390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32746/27A Expired GB307322A (en) 1927-12-05 1927-12-05 Improvements in or relating to the control of electric motors

Country Status (1)

Country Link
GB (1) GB307322A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2531834A (en) * 1946-05-09 1950-11-28 Rca Corp Speed control system
US2744173A (en) * 1952-12-18 1956-05-01 Grosse-Lohmann Ralph Automatic critical aerodynamic limit actuator
DE1129048B (en) * 1955-11-03 1962-05-03 Bauer Eugen Gmbh Facility that causes two devices to run synchronously

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2531834A (en) * 1946-05-09 1950-11-28 Rca Corp Speed control system
US2744173A (en) * 1952-12-18 1956-05-01 Grosse-Lohmann Ralph Automatic critical aerodynamic limit actuator
DE1129048B (en) * 1955-11-03 1962-05-03 Bauer Eugen Gmbh Facility that causes two devices to run synchronously

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