GB836785A - Improvements relating to control arrangements for electric motors - Google Patents

Improvements relating to control arrangements for electric motors

Info

Publication number
GB836785A
GB836785A GB20181/55A GB2018155A GB836785A GB 836785 A GB836785 A GB 836785A GB 20181/55 A GB20181/55 A GB 20181/55A GB 2018155 A GB2018155 A GB 2018155A GB 836785 A GB836785 A GB 836785A
Authority
GB
United Kingdom
Prior art keywords
valve
valves
grid
controlling
control signal
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
GB20181/55A
Inventor
Harold William Bond
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB20181/55A priority Critical patent/GB836785A/en
Publication of GB836785A publication Critical patent/GB836785A/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
    • H02P7/285—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 armature supply only
    • H02P7/292—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 armature supply only using static converters, e.g. AC to DC
    • H02P7/293—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 armature supply only using static converters, e.g. AC to DC using phase control

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Flow Control (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

836,785. Controlling D.C. motors. BRITISH THOMSON-HOUSTON CO. Ltd. Oct. 10, 1956 [July 12, 1955], No. 20181/55. Class 38 (3). A system for controlling a D.C. motor M comprises valves A, B, or banks of valves arranged to vary the direction and magnitude of current from separate D.C. supplies through the armature in response to a control signal applied across C, C1. Valves A, B are normally biased at cut-off, the control signal being applied directly between grid and cathode of valve A, also through a voltage inverter, shown in the dotted rectangle, to valve B. Positive control signals cause valve A to conduct, while grid of valve B is driven more negative. Similarly, valve B conducts for negative control signals. The voltage inverter comprises a double triode V1 operating as a cathode follower square-wave generator, the output from which is rectified and fed to valve B through a biasing battery E1. Specification 827,956 is referred to.
GB20181/55A 1955-07-12 1955-07-12 Improvements relating to control arrangements for electric motors Expired GB836785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB20181/55A GB836785A (en) 1955-07-12 1955-07-12 Improvements relating to control arrangements for electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20181/55A GB836785A (en) 1955-07-12 1955-07-12 Improvements relating to control arrangements for electric motors

Publications (1)

Publication Number Publication Date
GB836785A true GB836785A (en) 1960-06-09

Family

ID=10141740

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20181/55A Expired GB836785A (en) 1955-07-12 1955-07-12 Improvements relating to control arrangements for electric motors

Country Status (1)

Country Link
GB (1) GB836785A (en)

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