[go: up one dir, main page]

GB511636A - Improvements in and relating to variable electric pile type resistances - Google Patents

Improvements in and relating to variable electric pile type resistances

Info

Publication number
GB511636A
GB511636A GB1668638A GB1668638A GB511636A GB 511636 A GB511636 A GB 511636A GB 1668638 A GB1668638 A GB 1668638A GB 1668638 A GB1668638 A GB 1668638A GB 511636 A GB511636 A GB 511636A
Authority
GB
United Kingdom
Prior art keywords
generator
voltage
resistance
relating
exciter
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
GB1668638A
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
Original Assignee
General Electric Co
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 filed Critical General Electric Co
Priority to GB1668638A priority Critical patent/GB511636A/en
Publication of GB511636A publication Critical patent/GB511636A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/012—Automatic controllers electric details of the transmission means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

511,636. Automatic control systems. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). June 3. 1938, No. 16686. [Class 38 (iv)] [Also in Group XXXVI] Electromotive force.-For automatically controlling the voltage of a generator 19, a piletype resistance 41 is series connected in the field circuit of an exciter 22 for the generator. Variations in the generator voltage alter the excitation of a magnet 33 causing the armature thereof mounted on a shaft 30 to take up a new position under the action of a biasing spring 34. The pile-resistance is thereby altered through crank- 29 and rods 28 and acts on the exciter to bring' the generator voltage back to normal. The pileresistance has a negative resistance-current characteristic serving to increase the range of voltage control automatically.
GB1668638A 1938-06-03 1938-06-03 Improvements in and relating to variable electric pile type resistances Expired GB511636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1668638A GB511636A (en) 1938-06-03 1938-06-03 Improvements in and relating to variable electric pile type resistances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1668638A GB511636A (en) 1938-06-03 1938-06-03 Improvements in and relating to variable electric pile type resistances

Publications (1)

Publication Number Publication Date
GB511636A true GB511636A (en) 1939-08-22

Family

ID=10081809

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1668638A Expired GB511636A (en) 1938-06-03 1938-06-03 Improvements in and relating to variable electric pile type resistances

Country Status (1)

Country Link
GB (1) GB511636A (en)

Similar Documents

Publication Publication Date Title
US3673422A (en) Loss of synchronism detector
US3040225A (en) Impelling and pulse control system for electronic pendulum clocks
GB511636A (en) Improvements in and relating to variable electric pile type resistances
US1112833A (en) Automatic regulation for electrical apparatus.
US2233772A (en) Electric system
US2133976A (en) Electric system
GB466679A (en) Improvements relating to electric clocks
GB553029A (en) Improvements relating to dynamos and regulating means therefor
GB208567A (en) Improvements in and relating to electric switches
GB529096A (en) Improvements relating to dynamo regulators
GB493348A (en) Improvements relating to dynamo regulators
GB535732A (en) Improvements relating to the control of electrically operated winding or like mechanisms
GB513158A (en) Improvements in and relating to control systems for electric motors
GB624530A (en) Improvements in and relating to impulse-operated electro-magnetic devices
GB523840A (en) Improvements in or relating to electric motor control systems
GB511892A (en) Systems for controlling the speed of electric motors
GB478783A (en) Improvements connected with boosters
GB540547A (en) Improvements in control arrangements for direct current electric motors
GB654756A (en) Improvements in electric motor control systems
GB493347A (en) Improvements in regulating devices for electric drives
GB617235A (en) Improvements in and relating to electrical control or regulating systems and control or regulating devices
GB528789A (en) Means for determining the rate of change of current in a d.c. electric circuit
GB794892A (en) Improvements in control devices for electric motors
GB500488A (en) Improvements in and relating to electric motor speed control systems
GB767172A (en) Improvements in and relating to speed control of electric motors