GB397733A - Improvements in electric motor control systems - Google Patents

Improvements in electric motor control systems

Info

Publication number
GB397733A
GB397733A GB34714/32A GB3471432A GB397733A GB 397733 A GB397733 A GB 397733A GB 34714/32 A GB34714/32 A GB 34714/32A GB 3471432 A GB3471432 A GB 3471432A GB 397733 A GB397733 A GB 397733A
Authority
GB
United Kingdom
Prior art keywords
electric motor
motor control
dec
control systems
compounding
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
GB34714/32A
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 GB397733A publication Critical patent/GB397733A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/122—Insulating between turns or between winding layers
    • 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
    • H02P7/34—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 Ward-Leonard arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

397,733. Control of D. C. motors ; varying E.M.F. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. - (Assignees of Allgemeine Elektricitõts- Ges.; 2, Friedrich Karl-Ufer, Berlin.) Dec. 7, 1932, No. 34714. Convention date, Dec. 8, 1931. [Class 38 (iii).] In a Ward Leonard system in which the generator has a compounding winding 4 controlled in response to variations in the load current, relays 9, 10, 11 are provided, operating respectively in succession at different excess values of load current, to reduce the strength of the compounding, to disconnect the compound winding, and to reverse it.
GB34714/32A 1931-12-08 1932-12-07 Improvements in electric motor control systems Expired GB397733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE397733X 1908-12-12

Publications (1)

Publication Number Publication Date
GB397733A true GB397733A (en) 1933-08-31

Family

ID=6397250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34714/32A Expired GB397733A (en) 1931-12-08 1932-12-07 Improvements in electric motor control systems

Country Status (2)

Country Link
FR (1) FR397733A (en)
GB (1) GB397733A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5556202A (en) * 1995-07-31 1996-09-17 Dorn; Gordon J. Pivotly mounted drum type mixer

Also Published As

Publication number Publication date
FR397733A (en) 1909-05-15

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