GB507479A - Improvements relating to supply arrangements for direct current electric arcs - Google Patents

Improvements relating to supply arrangements for direct current electric arcs

Info

Publication number
GB507479A
GB507479A GB3102237A GB3102237A GB507479A GB 507479 A GB507479 A GB 507479A GB 3102237 A GB3102237 A GB 3102237A GB 3102237 A GB3102237 A GB 3102237A GB 507479 A GB507479 A GB 507479A
Authority
GB
United Kingdom
Prior art keywords
rectifier
circuit
control
current
controlled
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
GB3102237A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB3102237A priority Critical patent/GB507479A/en
Publication of GB507479A publication Critical patent/GB507479A/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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/15—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using discharge tubes only
    • H02M7/151—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using discharge tubes only with automatic control

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Discharge Heating (AREA)

Abstract

507,479. Converting. I. G. FARBEN. INDUSTRIE AKT.-GES., and JOHNSON, G. W. Nov. 11, 1937, No. 31022. [Class 38 (ii)] An A.C. furnace in which the arc burns in an atmosphere of hydrocarbon, is supplied with direct current from an A.C. circuit through a rectifier employing discharge devices having immersion igniter control, the output of the rectifier being controlled in dependence on variations in the arc current to give stability of operation. In the form shown in Fig. 1 the ignition impulses for the discharge device J are derived from a circuit comprising a supply transformer C, saturable choke D and unilaterally conductive device E. Control in dependence on the arc current is obtained by introducing a biassing voltage into the circuit at H from a current transformer A and rectifier bridge B, in opposition to a constant biassing voltage introduced at G. In a modification this control circuit is employed to control an auxiliary grid controlled rectifier and ignition impulses for the main rectifier are derived from a current transformer connected in the anode circuit of the auxiliary rectifier. This auxiliary rectifier may also be controlled by means of any of the arrangements described in Specification 418,971.
GB3102237A 1937-11-11 1937-11-11 Improvements relating to supply arrangements for direct current electric arcs Expired GB507479A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3102237A GB507479A (en) 1937-11-11 1937-11-11 Improvements relating to supply arrangements for direct current electric arcs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3102237A GB507479A (en) 1937-11-11 1937-11-11 Improvements relating to supply arrangements for direct current electric arcs

Publications (1)

Publication Number Publication Date
GB507479A true GB507479A (en) 1939-06-12

Family

ID=10316753

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3102237A Expired GB507479A (en) 1937-11-11 1937-11-11 Improvements relating to supply arrangements for direct current electric arcs

Country Status (1)

Country Link
GB (1) GB507479A (en)

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