GB842916A - Improvements in and relating to the speed control of electric motor drives - Google Patents

Improvements in and relating to the speed control of electric motor drives

Info

Publication number
GB842916A
GB842916A GB1594057A GB1594057A GB842916A GB 842916 A GB842916 A GB 842916A GB 1594057 A GB1594057 A GB 1594057A GB 1594057 A GB1594057 A GB 1594057A GB 842916 A GB842916 A GB 842916A
Authority
GB
United Kingdom
Prior art keywords
motor
variable
speed control
energized
acting
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
GB1594057A
Inventor
Leonard Jack Clark
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 GB1594057A priority Critical patent/GB842916A/en
Publication of GB842916A publication Critical patent/GB842916A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/26—Starting; Ignition
    • F02C7/268—Starting drives for the rotor, acting directly on the rotor of the gas turbine to be started
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/47—Automatic regulation in accordance with output requirements for achieving a target output speed

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

842,916. Variable-speed control. BRITISH THOMSON-HOUSTON CO. Ltd. May 6,1958 [May 20, 1957], No. 15940/57. Addition to 841,585. Class 80 (2). [Also in Groups XXVII. XXIX and XXXV] In a control system according to the parent Specification wherein a motor generator 1, acting as a motor, starts an aircraft gas turbine 3 through a variable-ratio gear 2 controlled automatically at 8 by means responsive to motor current to maintain constant speed and power of the motor 1, the motor generator 1 is of the compound wound synchronous type and the variable ratio control 8 is actuated by a solenoid 5 acting on a spring-biased armature 6 and energized by a current transformer ST in one of the three-phase leads supplying the motor 1. The motor field FW is energized through rectifiers R1, R2 fed directly and through current transformers CT respectively.
GB1594057A 1957-05-20 1957-05-20 Improvements in and relating to the speed control of electric motor drives Expired GB842916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1594057A GB842916A (en) 1957-05-20 1957-05-20 Improvements in and relating to the speed control of electric motor drives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1594057A GB842916A (en) 1957-05-20 1957-05-20 Improvements in and relating to the speed control of electric motor drives

Publications (1)

Publication Number Publication Date
GB842916A true GB842916A (en) 1960-07-27

Family

ID=10068291

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1594057A Expired GB842916A (en) 1957-05-20 1957-05-20 Improvements in and relating to the speed control of electric motor drives

Country Status (1)

Country Link
GB (1) GB842916A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2478852A (en) * 2010-03-17 2011-09-21 Hamilton Sundstrand Corp Drive arrangement for a turbomachine
US9394831B2 (en) 2010-03-17 2016-07-19 Hamilton Sundstrand Corporation Turbomachine drive arrangement

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2478852A (en) * 2010-03-17 2011-09-21 Hamilton Sundstrand Corp Drive arrangement for a turbomachine
GB2478852B (en) * 2010-03-17 2012-08-08 Hamilton Sundstrand Corp Turbomachine drive arrangement
US9394831B2 (en) 2010-03-17 2016-07-19 Hamilton Sundstrand Corporation Turbomachine drive arrangement

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