GB838108A - Improvements in or relating to field excitation arrangements for direct current electric motors - Google Patents

Improvements in or relating to field excitation arrangements for direct current electric motors

Info

Publication number
GB838108A
GB838108A GB1038957A GB1038957A GB838108A GB 838108 A GB838108 A GB 838108A GB 1038957 A GB1038957 A GB 1038957A GB 1038957 A GB1038957 A GB 1038957A GB 838108 A GB838108 A GB 838108A
Authority
GB
United Kingdom
Prior art keywords
field
coil
signal
relating
direct current
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
GB1038957A
Inventor
Donald Cameron Gilchrist
Peter Scott
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 GB1038957A priority Critical patent/GB838108A/en
Publication of GB838108A publication Critical patent/GB838108A/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
    • H02P5/68—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more dc dynamo-electric motors

Landscapes

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

Abstract

838,108. Control of D.C. motors. GENERAL ELECTRIC CO. Ltd. March 31, 1958 [March 29, 1957], No. 10389/57. Class 38 (3). [Also in Group XXXV] The speed of a D.C. motor, having an armature 1 supplied from terminals 3, is controlled by adjusting the current in a motor field 4 by a series excitation generator 5. A field 7 of the generator is supplied from an amplifier 6 responsive to the difference between a signal in a coil 8 proportional to the field current, and a reference signal in a coil 9 derived from the terminal voltage through an ohmic or voltage dependent resistor 12 selected to compensate for change in motor speed. A third signal in a coil 10 is derived through a resistance 11 from the field voltage and acts in opposition to the signal in coil 8 to compensate for variation in field resistance.
GB1038957A 1957-03-29 1957-03-29 Improvements in or relating to field excitation arrangements for direct current electric motors Expired GB838108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1038957A GB838108A (en) 1957-03-29 1957-03-29 Improvements in or relating to field excitation arrangements for direct current electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1038957A GB838108A (en) 1957-03-29 1957-03-29 Improvements in or relating to field excitation arrangements for direct current electric motors

Publications (1)

Publication Number Publication Date
GB838108A true GB838108A (en) 1960-06-22

Family

ID=9966938

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1038957A Expired GB838108A (en) 1957-03-29 1957-03-29 Improvements in or relating to field excitation arrangements for direct current electric motors

Country Status (1)

Country Link
GB (1) GB838108A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067891A1 (en) * 1981-06-05 1982-12-29 Fried. Krupp Gesellschaft mit beschränkter Haftung Arrangement for stabilizing the rotational speed of a direct current shunt-wound motor in case of variations of the power supply voltage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067891A1 (en) * 1981-06-05 1982-12-29 Fried. Krupp Gesellschaft mit beschränkter Haftung Arrangement for stabilizing the rotational speed of a direct current shunt-wound motor in case of variations of the power supply voltage

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