GB562206A - Improvements relating to the supply of single phase alternating electric current load circuits from three-phase supply circuits - Google Patents

Improvements relating to the supply of single phase alternating electric current load circuits from three-phase supply circuits

Info

Publication number
GB562206A
GB562206A GB1793842A GB1793842A GB562206A GB 562206 A GB562206 A GB 562206A GB 1793842 A GB1793842 A GB 1793842A GB 1793842 A GB1793842 A GB 1793842A GB 562206 A GB562206 A GB 562206A
Authority
GB
United Kingdom
Prior art keywords
supply
circuits
load
phase
electric current
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
GB1793842A
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal 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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB1793842A priority Critical patent/GB562206A/en
Publication of GB562206A publication Critical patent/GB562206A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00Fixed transformers not covered by group H01F19/00
    • H01F30/06Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/12Two-phase, three-phase or polyphase transformers
    • H01F30/14Two-phase, three-phase or polyphase transformers for changing the number of phases

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

562,206. Phase changing. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., and WALKER, A. H. B. Dec. 17, 1942, No. 17938. [Class 38 (ii)] An arrangement for supplying a single phase load L from a three-phase network R, B, Y and maintaining a balance of load thereon comprises at least two transformers having their primaries 1, 2 star-connected to at least two of the lines and their secondaries 3, 4 connected in series and to the load, one of the primaries having a condenser C in shunt therewith and all the transformer cores operating at saturation at full load. To avoid the limitation of a 2-to-1 secondary to primary ratio inherent in arrangements using only two transformers, a third transformer 5, 6, Fig. 3, may be used to supply the voltage component otherwise provided by the line R. A reactance X may be provided in series with the condenser C to form a circuit tuned to the third harmonic so as to byepass magnetizing current of this frequency.
GB1793842A 1942-12-17 1942-12-17 Improvements relating to the supply of single phase alternating electric current load circuits from three-phase supply circuits Expired GB562206A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1793842A GB562206A (en) 1942-12-17 1942-12-17 Improvements relating to the supply of single phase alternating electric current load circuits from three-phase supply circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1793842A GB562206A (en) 1942-12-17 1942-12-17 Improvements relating to the supply of single phase alternating electric current load circuits from three-phase supply circuits

Publications (1)

Publication Number Publication Date
GB562206A true GB562206A (en) 1944-06-22

Family

ID=10103866

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1793842A Expired GB562206A (en) 1942-12-17 1942-12-17 Improvements relating to the supply of single phase alternating electric current load circuits from three-phase supply circuits

Country Status (1)

Country Link
GB (1) GB562206A (en)

Similar Documents

Publication Publication Date Title
GB562206A (en) Improvements relating to the supply of single phase alternating electric current load circuits from three-phase supply circuits
GB586519A (en) Improvements in frequency changers
GB609667A (en) Means for exciting synchronous alternating current machines through rectifiers
GB863403A (en) Improvements in or relating to interphase transformers
US2280456A (en) Conversion of single-phase alternating electric currents to polyphase currents
GB584420A (en) Improvements relating to voltage regulating apparatus for polyphase alternating current circuits
GB250966A (en) Improvements in systems for converting electric currents
US2157897A (en) Electric valve converting system
GB612191A (en) Improvements relating to apparatus for operating devices having a negative resistance characteristic from an alternating electric current supply circuit
GB647712A (en) Static equipment for arc and resistance welding
GB460449A (en) Improvements in electric transformers
GB384914A (en) Transformer with adjustable stray reactance
GB518632A (en) Improvements relating to the conversion of single phase alternating electric currents to polyphase currents
GB812937A (en) Improvements in or relating to circuits for operating alternators in series
GB406275A (en) Improvements relating to alternating current dynamo electric machines
GB617706A (en) Static transformer for arc welding
GB447455A (en) Improvements in or relating to electric supply systems
GB479112A (en) Supplying a single-phase load from a three-phase supply
GB574778A (en) Improvements in or relating to alternating current electric transformers
GB833366A (en) Improvements in or relating to apparatus for operating self-excited compounded synchronous generators in parallel
GB578612A (en) Improvements in and relating to electric circuits for transformers
GB802377A (en) Method and apparatus for electric arc welding
GB522973A (en) Improvements in and relating to electric transformers
GB592003A (en) Improvements in electric transformers
GB281275A (en)