GB666268A - Improvements relating to systems for operating a small two-phase motor from a single-phase supply - Google Patents

Improvements relating to systems for operating a small two-phase motor from a single-phase supply

Info

Publication number
GB666268A
GB666268A GB702249A GB702249A GB666268A GB 666268 A GB666268 A GB 666268A GB 702249 A GB702249 A GB 702249A GB 702249 A GB702249 A GB 702249A GB 666268 A GB666268 A GB 666268A
Authority
GB
United Kingdom
Prior art keywords
motor
phase
supply
voltage
winding
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
GB702249A
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.)
DENIS WILLIAMSON
Ferranti International PLC
Original Assignee
DENIS WILLIAMSON
Ferranti PLC
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 DENIS WILLIAMSON, Ferranti PLC filed Critical DENIS WILLIAMSON
Priority to GB702249A priority Critical patent/GB666268A/en
Publication of GB666268A publication Critical patent/GB666268A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/04—Asynchronous induction motors for single phase current
    • H02K17/08—Motors with auxiliary phase obtained by externally fed auxiliary windings, e.g. capacitor motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

666,268. Control of A.C. motors. FERRANTI, Ltd., and WILLIAMSON, D. March 13, 1950. [March 15, 1949] No. 7022/49. Class 38 (iii). A two-phase induction motor 10 is energized from a single-phase supply, the voltage of which exceeds the working-voltage of the motor. A step-down transformer 11 has its primary winding connected to the supply and its secondary winding to a field winding 20 of the motor, the other field winding 21 being connected in series with a capacitor 22 across the supply. The capacitance of the element 22 is such that the voltage applied to the winding 21 approximates to the working-voltage of the motor, whilst the capacitor produces a phaseshift sufficiently approaching quadrature to afford satisfactory motor-operation. The element 11 may be replaced by an autotransformer, Fig. 2 (not shown), or a potentiometer. The motor may be of the synchronous or other two-phase type.
GB702249A 1949-03-15 1949-03-15 Improvements relating to systems for operating a small two-phase motor from a single-phase supply Expired GB666268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB702249A GB666268A (en) 1949-03-15 1949-03-15 Improvements relating to systems for operating a small two-phase motor from a single-phase supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB702249A GB666268A (en) 1949-03-15 1949-03-15 Improvements relating to systems for operating a small two-phase motor from a single-phase supply

Publications (1)

Publication Number Publication Date
GB666268A true GB666268A (en) 1952-02-06

Family

ID=9825162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB702249A Expired GB666268A (en) 1949-03-15 1949-03-15 Improvements relating to systems for operating a small two-phase motor from a single-phase supply

Country Status (1)

Country Link
GB (1) GB666268A (en)

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