GB404917A - Improvements in and relating to electric control circuits - Google Patents

Improvements in and relating to electric control circuits

Info

Publication number
GB404917A
GB404917A GB1095432A GB1095432A GB404917A GB 404917 A GB404917 A GB 404917A GB 1095432 A GB1095432 A GB 1095432A GB 1095432 A GB1095432 A GB 1095432A GB 404917 A GB404917 A GB 404917A
Authority
GB
United Kingdom
Prior art keywords
motor
alternator
april
valves
supplies
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
GB1095432A
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 GB1095432A priority Critical patent/GB404917A/en
Publication of GB404917A publication Critical patent/GB404917A/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
    • H02P7/26—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 discharge tubes
    • H02P7/265—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 discharge tubes whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

404,917. Maintaining defined speeds of motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Zucker, M. ; 1708, Crooks Road, Royal Oak, Michigan, U.S.A.) April 16, 1932, No. 10954. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 18, 1932]. [Class 38 (iii).] A D.C. motor 10 is maintained at constant speed by causing it to drive an alternator 20 which supplies, through a transformer 15 and valves 16, 17, the motor field 12. The alternator also supplies a tuned circuit 22, 23 in series with a resistor 25 and capacitor 24 across which is a grid feed transformer 18. The circuit 22 .. 25 is arranged so that at normal speed the potentials applied to the grids of the valves 16, 17 lag behind the anode potentials by approximately 45‹. If the motor speed increases above normal, this lag is reduced and the field 12 is strengthened. The alternator 20 may be a power device and constitute the load on the motor.
GB1095432A 1932-04-16 1932-04-16 Improvements in and relating to electric control circuits Expired GB404917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1095432A GB404917A (en) 1932-04-16 1932-04-16 Improvements in and relating to electric control circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1095432A GB404917A (en) 1932-04-16 1932-04-16 Improvements in and relating to electric control circuits

Publications (1)

Publication Number Publication Date
GB404917A true GB404917A (en) 1934-01-25

Family

ID=9977359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1095432A Expired GB404917A (en) 1932-04-16 1932-04-16 Improvements in and relating to electric control circuits

Country Status (1)

Country Link
GB (1) GB404917A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442213A (en) * 1944-12-29 1948-05-25 Gen Electric Dynamoelectric machine
US2717982A (en) * 1950-06-28 1955-09-13 Robert E Mcnett Speed control for alternator
US2764728A (en) * 1952-09-10 1956-09-25 Bendix Aviat Corp Frequency regulator device
US2842345A (en) * 1950-04-07 1958-07-08 Walter J Brown Thermal regulating system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442213A (en) * 1944-12-29 1948-05-25 Gen Electric Dynamoelectric machine
US2842345A (en) * 1950-04-07 1958-07-08 Walter J Brown Thermal regulating system
US2717982A (en) * 1950-06-28 1955-09-13 Robert E Mcnett Speed control for alternator
US2764728A (en) * 1952-09-10 1956-09-25 Bendix Aviat Corp Frequency regulator device

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