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GB518176A - Improvements in or relating to systems for controlling the division of load between two or more electric motors - Google Patents

Improvements in or relating to systems for controlling the division of load between two or more electric motors

Info

Publication number
GB518176A
GB518176A GB2415638A GB2415638A GB518176A GB 518176 A GB518176 A GB 518176A GB 2415638 A GB2415638 A GB 2415638A GB 2415638 A GB2415638 A GB 2415638A GB 518176 A GB518176 A GB 518176A
Authority
GB
United Kingdom
Prior art keywords
load
motor
circuit
motors
contactors
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
GB2415638A
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.)
MEECH ELECTRIC DRIVES Ltd
Original Assignee
MEECH ELECTRIC DRIVES 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 MEECH ELECTRIC DRIVES Ltd filed Critical MEECH ELECTRIC DRIVES Ltd
Priority to GB2415638A priority Critical patent/GB518176A/en
Publication of GB518176A publication Critical patent/GB518176A/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
    • H02P5/74—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more AC dynamo-electric motors
    • H02P5/747—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more AC dynamo-electric motors mechanically coupled by gearing

Landscapes

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

Abstract

518,176. Automatic control systems. MEECH ELECTRIC DRIVES, Ltd., and VAUGHAN, C. H. Aug. 16, 1938, No. 24156. [Class 38 (iv)] Load distribution.-The load on motors 1, 2 is maintained equal, or in desired ratio, by rectifying a sample of the supply current to each and passing the difference of these currents through the operating windings 20, 21 of polarised relays, premagnetised from a circuit 24. The relay armature, upon deviation of load closes either contacts 9 or 13 to energise contactors 3a, 3b which respectively operate means to raise or lower the speed of the motor 2 and so adjust its load. An anti-heating intermittent contact device 11 may be included in the circuit of the contactors. The speed variation may be effected by electromechanical means adjusting the brushes of an A.C. motor or varying the field of a D.C. motor. For D.C. motors the' relays are in circuit with potentiometers.
GB2415638A 1938-08-16 1938-08-16 Improvements in or relating to systems for controlling the division of load between two or more electric motors Expired GB518176A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2415638A GB518176A (en) 1938-08-16 1938-08-16 Improvements in or relating to systems for controlling the division of load between two or more electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2415638A GB518176A (en) 1938-08-16 1938-08-16 Improvements in or relating to systems for controlling the division of load between two or more electric motors

Publications (1)

Publication Number Publication Date
GB518176A true GB518176A (en) 1940-02-20

Family

ID=10207267

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2415638A Expired GB518176A (en) 1938-08-16 1938-08-16 Improvements in or relating to systems for controlling the division of load between two or more electric motors

Country Status (1)

Country Link
GB (1) GB518176A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018964B (en) * 1952-05-30 1957-11-07 Siemens Ag Arrangement for influencing the proportional power consumption of several asynchronous motors fed from a power source, in particular squirrel cage armature motors
US2864040A (en) * 1955-02-01 1958-12-09 David M Trotsky Multiple electric motor drive system
DE1156489B (en) * 1956-06-25 1963-10-31 Siemens Ag Arrangement for keeping constant a certain ratio of the active or reactive power consumption or output of AC machines working in parallel, one of which serves as a master machine
DE1286618B (en) * 1961-01-17 1969-01-09 Comp Generale Electricite Monitoring device for an electric drive with two three-phase asynchronous motors that work in synchronism and are connected in star
DE1298609B (en) * 1963-01-14 1969-07-03 Eaton Yale & Towne Drive device with controlled load compensation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018964B (en) * 1952-05-30 1957-11-07 Siemens Ag Arrangement for influencing the proportional power consumption of several asynchronous motors fed from a power source, in particular squirrel cage armature motors
US2864040A (en) * 1955-02-01 1958-12-09 David M Trotsky Multiple electric motor drive system
DE1156489B (en) * 1956-06-25 1963-10-31 Siemens Ag Arrangement for keeping constant a certain ratio of the active or reactive power consumption or output of AC machines working in parallel, one of which serves as a master machine
DE1286618B (en) * 1961-01-17 1969-01-09 Comp Generale Electricite Monitoring device for an electric drive with two three-phase asynchronous motors that work in synchronism and are connected in star
DE1298609B (en) * 1963-01-14 1969-07-03 Eaton Yale & Towne Drive device with controlled load compensation

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