GB258455A - Improvements in or relating to electric motor control systems - Google Patents

Improvements in or relating to electric motor control systems

Info

Publication number
GB258455A
GB258455A GB3234725A GB3234725A GB258455A GB 258455 A GB258455 A GB 258455A GB 3234725 A GB3234725 A GB 3234725A GB 3234725 A GB3234725 A GB 3234725A GB 258455 A GB258455 A GB 258455A
Authority
GB
United Kingdom
Prior art keywords
motors
speed
relating
electric motor
motor control
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
GB3234725A
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.)
Cutler Hammer Manufacturing Co
Original Assignee
Cutler Hammer Manufacturing 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 Cutler Hammer Manufacturing Co filed Critical Cutler Hammer Manufacturing Co
Priority to GB3234725A priority Critical patent/GB258455A/en
Publication of GB258455A publication Critical patent/GB258455A/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)

Abstract

258,455. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Dec. 22, 1925. Speed-maintaining systems. - To maintain equality of speed between motors M', M<2> driving separate shafts, alternating currents tapped off from the windings of the two motors by means of slip-rings c<1>, c<2> are fed into the stator and rotor respectively of a three-phase torque movement device a. No movement is produced while the frequencies in the stator and rotor are equal; if these become unequal owing to inequality of speed between the motors the device moves a rheostat arm d which alters the field excitation of one motor in a compensatory direction.
GB3234725A 1925-12-22 1925-12-22 Improvements in or relating to electric motor control systems Expired GB258455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3234725A GB258455A (en) 1925-12-22 1925-12-22 Improvements in or relating to electric motor control systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3234725A GB258455A (en) 1925-12-22 1925-12-22 Improvements in or relating to electric motor control systems

Publications (1)

Publication Number Publication Date
GB258455A true GB258455A (en) 1926-09-23

Family

ID=10337202

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3234725A Expired GB258455A (en) 1925-12-22 1925-12-22 Improvements in or relating to electric motor control systems

Country Status (1)

Country Link
GB (1) GB258455A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3052410A (en) * 1955-09-02 1962-09-04 Wuppermann Max Measuring apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3052410A (en) * 1955-09-02 1962-09-04 Wuppermann Max Measuring apparatus

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