GB519925A - Means for converting polyphase current into single-phase current of lower frequency - Google Patents

Means for converting polyphase current into single-phase current of lower frequency

Info

Publication number
GB519925A
GB519925A GB19776/38A GB1977638A GB519925A GB 519925 A GB519925 A GB 519925A GB 19776/38 A GB19776/38 A GB 19776/38A GB 1977638 A GB1977638 A GB 1977638A GB 519925 A GB519925 A GB 519925A
Authority
GB
United Kingdom
Prior art keywords
rectifier
inverter
polyphase
current
july
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
GB19776/38A
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB519925A publication Critical patent/GB519925A/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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/005—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases using discharge tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

519,925. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. July 4, 1938, No. 19776. Convention date, July 9, 1937. [Class 38 (ii)] In a frequency changing arrangement supplying a load subject to rapid fluctuation from a polyphase supply, to avoid uneven phase loading of the supply a rectifier followed by a separate inverter provided with means for effecting forced commutation is employed. In the form shown in the Figure, a polyphase rectifier 1 supplies a single-phase inverter 2, 4, the discharge device 2 being provided with auxiliary anodes supplied from condensers 25 inductively coupled to effect communtation. To enable a load having a low power factor to be supplied, a rectifier 3, 5 connected reversely in parallel with the inverter is provided. A modification is described in which " Graetz connected discharge device are employed. Specification 512,023 is referred to.
GB19776/38A 1937-07-09 1938-07-04 Means for converting polyphase current into single-phase current of lower frequency Expired GB519925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE519925X 1937-07-09

Publications (1)

Publication Number Publication Date
GB519925A true GB519925A (en) 1940-04-10

Family

ID=20311159

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19776/38A Expired GB519925A (en) 1937-07-09 1938-07-04 Means for converting polyphase current into single-phase current of lower frequency

Country Status (1)

Country Link
GB (1) GB519925A (en)

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