[go: up one dir, main page]

GB513841A - Improvements relating to means for converting electric currents - Google Patents

Improvements relating to means for converting electric currents

Info

Publication number
GB513841A
GB513841A GB1303937A GB1303937A GB513841A GB 513841 A GB513841 A GB 513841A GB 1303937 A GB1303937 A GB 1303937A GB 1303937 A GB1303937 A GB 1303937A GB 513841 A GB513841 A GB 513841A
Authority
GB
United Kingdom
Prior art keywords
commutator
arrangements
electric currents
improvements relating
converting electric
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
GB1303937A
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.)
WALTER NEEDHAM
Original Assignee
WALTER NEEDHAM
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 WALTER NEEDHAM filed Critical WALTER NEEDHAM
Priority to GB1303937A priority Critical patent/GB513841A/en
Publication of GB513841A publication Critical patent/GB513841A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/34—Conversion of DC power input into DC power output with intermediate conversion into AC by dynamic converters
    • H02M3/38—Conversion of DC power input into DC power output with intermediate conversion into AC by dynamic converters using mechanical contact-making and -breaking parts to interrupt a single potential
    • H02M3/40—Conversion of DC power input into DC power output with intermediate conversion into AC by dynamic converters using mechanical contact-making and -breaking parts to interrupt a single potential wherein the parts are rotating and collectors co-operate with brushes or rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Machiner (AREA)

Abstract

513,841. Commutator switching arrangements. NEEDHAM, W., and ROBINSON, S. April 29, 1938, No. 13039/37. [Class 38 (ii)] Means for converting AC. to D.C. or vice versa comprises a rotary commutator A and a centre-tapped transformer C wherein the D.C. connections are made between the centre-tap on the transformer and a slip ring a<1> associated with the commutator, and condensers a<3> are connected between each of the brushes a<2> associated with the commutator and the slip ring. A pair of such arrangements may be combined as shown and operate as a D.C voltage changer. Alternatively a pair of such arrangements driven at different speeds, one operating to covert A.C. to D.C., and the other operating to convert the D.C. so obtained to A.C. may be used as a frequency changer.
GB1303937A 1938-04-29 1938-04-29 Improvements relating to means for converting electric currents Expired GB513841A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1303937A GB513841A (en) 1938-04-29 1938-04-29 Improvements relating to means for converting electric currents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1303937A GB513841A (en) 1938-04-29 1938-04-29 Improvements relating to means for converting electric currents

Publications (1)

Publication Number Publication Date
GB513841A true GB513841A (en) 1939-10-24

Family

ID=10015681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1303937A Expired GB513841A (en) 1938-04-29 1938-04-29 Improvements relating to means for converting electric currents

Country Status (1)

Country Link
GB (1) GB513841A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1044244B (en) * 1956-07-14 1958-11-20 Licentia Gmbh Arrangement for converting a DC voltage into a DC voltage that can be changed in terms of magnitude and sign

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1044244B (en) * 1956-07-14 1958-11-20 Licentia Gmbh Arrangement for converting a DC voltage into a DC voltage that can be changed in terms of magnitude and sign

Similar Documents

Publication Publication Date Title
GB513841A (en) Improvements relating to means for converting electric currents
GB513886A (en) Improvements relating to means for converting electric currents
GB513885A (en) Improvements relating to means for converting polyphase electric currents
GB516814A (en) Improvements in or relating to variable electrical inductances
GB491947A (en) Improvements in rotary brush type converter with transformer
GB574546A (en) Improvements in and relating to electric filters
GB494517A (en) Improvements in and relating to electric motors
GB499787A (en) Improvements in and relating to electric motors
SU61207A1 (en) Capacitor Asynchronous Phase Converter
GB473796A (en) Improvements in or relating to electric motors
GB254675A (en) Improved damping-winding in rotors of electrical machines
GB221034A (en) Improvements in and relating to induction motors
GB551949A (en) Improvements in and relating to electric phase converting motors
GB447095A (en) Improvements in and relating to rotary liquid switching devices
GB428538A (en) Improvements in and relating to electric motors
GB428876A (en) Improvements in and relating to single phase alternating current electric motors
GB534994A (en) Improvements in starting arrangements for induction motors
GB383346A (en) Improvements in or relating to single phase induction motors
GB417159A (en) Improvements in rotary convertors
GB494660A (en) Improvements in or relating to induction-motors for single- or polyphase-currents
CA371359A (en) Electric current collector
GB411071A (en) Mechanical means for converting direct current into alternating current
AU114361B2 (en) Improvements relating to the conversion of single-phase altornating electric currents to poly-phase currents
GB509236A (en) Improvements in and relating to apparatus for converting direct current into alternating current
GB368982A (en) Improvements in and relating to alternating current motor control gear