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GB584186A - Improvements in control systems for direct current electric motors - Google Patents

Improvements in control systems for direct current electric motors

Info

Publication number
GB584186A
GB584186A GB833439A GB833439A GB584186A GB 584186 A GB584186 A GB 584186A GB 833439 A GB833439 A GB 833439A GB 833439 A GB833439 A GB 833439A GB 584186 A GB584186 A GB 584186A
Authority
GB
United Kingdom
Prior art keywords
brake
eddy current
speed
driven
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
GB833439A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB833439A priority Critical patent/GB584186A/en
Publication of GB584186A publication Critical patent/GB584186A/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)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

584,186. Eddy current brakes. TUSTIN, A., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 15, 1939, No. 8334. [Class 103 (i)] [Also in Group XXXVII] An eddy current brake 8, is driven through gearing including a clutch 15 controlled by centrifugal masses so as to slip when the speed at which the brake is driven exceeds a certain value, above which the braking effect becomes independent of the speed. A second eddy current brake 22 is directly driven. The excitation of the brake magnets 9, 11 may be controlled by the field controller 7 of an electric motor being braked so as to vary as the motor field. The torque-speed characteristics resulting from the arrangement are described with reference to Figs. 2 and 3 (not shown).
GB833439A 1939-03-15 1939-03-15 Improvements in control systems for direct current electric motors Expired GB584186A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB833439A GB584186A (en) 1939-03-15 1939-03-15 Improvements in control systems for direct current electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB833439A GB584186A (en) 1939-03-15 1939-03-15 Improvements in control systems for direct current electric motors

Publications (1)

Publication Number Publication Date
GB584186A true GB584186A (en) 1947-01-09

Family

ID=9850540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB833439A Expired GB584186A (en) 1939-03-15 1939-03-15 Improvements in control systems for direct current electric motors

Country Status (1)

Country Link
GB (1) GB584186A (en)

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