GB528554A - Improvements in or relating to electric motor control systems - Google Patents

Improvements in or relating to electric motor control systems

Info

Publication number
GB528554A
GB528554A GB1386039A GB1386039A GB528554A GB 528554 A GB528554 A GB 528554A GB 1386039 A GB1386039 A GB 1386039A GB 1386039 A GB1386039 A GB 1386039A GB 528554 A GB528554 A GB 528554A
Authority
GB
United Kingdom
Prior art keywords
relating
electric motor
motor control
control systems
shunt field
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
GB1386039A
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.)
EDWARD HUGH CROFT
General Electric Co PLC
Original Assignee
EDWARD HUGH CROFT
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 EDWARD HUGH CROFT, General Electric Co PLC filed Critical EDWARD HUGH CROFT
Priority to GB1386039A priority Critical patent/GB528554A/en
Publication of GB528554A publication Critical patent/GB528554A/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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/282—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling field supply only

Landscapes

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

Abstract

528,554. Control of D.C. motors. GENERAL ELECTRIC CO., Ltd., and CROFT, E. H. May 9, 1939, No. 13860. [Class 38 (iii)] The shunt field discharge resistance of a compound - wound motor is controlled in accordance with the current flowing in the shunt field winding so as to be disconnected at zero and low values thereof. A contactor in the circuit of the discharge resistance is operated by a coil in series with the shunt field.
GB1386039A 1939-05-09 1939-05-09 Improvements in or relating to electric motor control systems Expired GB528554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1386039A GB528554A (en) 1939-05-09 1939-05-09 Improvements in or relating to electric motor control systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1386039A GB528554A (en) 1939-05-09 1939-05-09 Improvements in or relating to electric motor control systems

Publications (1)

Publication Number Publication Date
GB528554A true GB528554A (en) 1940-10-31

Family

ID=10030691

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1386039A Expired GB528554A (en) 1939-05-09 1939-05-09 Improvements in or relating to electric motor control systems

Country Status (1)

Country Link
GB (1) GB528554A (en)

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