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SE7909925L - STROMKELLA FOR REAR WELDING - Google Patents

STROMKELLA FOR REAR WELDING

Info

Publication number
SE7909925L
SE7909925L SE7909925A SE7909925A SE7909925L SE 7909925 L SE7909925 L SE 7909925L SE 7909925 A SE7909925 A SE 7909925A SE 7909925 A SE7909925 A SE 7909925A SE 7909925 L SE7909925 L SE 7909925L
Authority
SE
Sweden
Prior art keywords
frequency
welding
frequency converter
welding current
phase
Prior art date
Application number
SE7909925A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
E Rohm
Original Assignee
Messer Griesheim Gmbh
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 Messer Griesheim Gmbh filed Critical Messer Griesheim Gmbh
Publication of SE7909925L publication Critical patent/SE7909925L/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/12—Two-phase, three-phase or polyphase transformers
    • H01F30/14—Two-phase, three-phase or polyphase transformers for changing the number of phases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1006—Power supply
    • 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
    • H02M5/02—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 without intermediate conversion into DC
    • H02M5/04—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 without intermediate conversion into DC by static converters
    • H02M5/22—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 without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/25—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 without intermediate conversion into DC 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
    • H02M5/257—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 without intermediate conversion into DC 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 semiconductor devices only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding Control (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

In a power source (10) for arc welding, two transformers (12) are connected in the manner of a Scott connection in a three-phase network (R, S, T,) and, in addition, a frequency converter (15) is provided for generating an alternating single- phase welding current with a welding current frequency of twice the supply frequency. In order to provide a relatively small structure having relatively low weight, whilst at the same time achieving optimum welding characteristics, the frequency converter (15) is provided as two secondary transformer windings (16, 17) which are associated with two pairs of controllable rectifiers (18, 19, and 20, 21) connected with opposite flow directions (22, 23) in a centre-tapped halfwave circuit. <IMAGE>
SE7909925A 1978-12-22 1979-11-30 STROMKELLA FOR REAR WELDING SE7909925L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782855663 DE2855663A1 (en) 1978-12-22 1978-12-22 POWER SOURCE FOR ARC WELDING

Publications (1)

Publication Number Publication Date
SE7909925L true SE7909925L (en) 1980-06-23

Family

ID=6058119

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7909925A SE7909925L (en) 1978-12-22 1979-11-30 STROMKELLA FOR REAR WELDING

Country Status (8)

Country Link
JP (1) JPS55144379A (en)
AT (1) ATA710779A (en)
BR (1) BR7908448A (en)
DE (1) DE2855663A1 (en)
FR (1) FR2444528A1 (en)
GB (1) GB2039166A (en)
IT (1) IT1126528B (en)
SE (1) SE7909925L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4004667A1 (en) * 1990-02-15 1991-08-22 Peter Bodewigs AC POWER SOURCE FOR WELDING
US6114655A (en) * 1997-06-11 2000-09-05 Illinois Tool Works Inc. Method and apparatus for producing welding power
US7573000B2 (en) 2003-07-11 2009-08-11 Lincoln Global, Inc. Power source for plasma device
KR100655089B1 (en) * 2004-10-04 2006-12-08 이성래 Assembly structure of signboard frame

Also Published As

Publication number Publication date
FR2444528A1 (en) 1980-07-18
IT1126528B (en) 1986-05-21
BR7908448A (en) 1980-08-26
FR2444528B3 (en) 1981-10-02
ATA710779A (en) 1982-07-15
IT7927943A0 (en) 1979-12-07
GB2039166A (en) 1980-07-30
DE2855663A1 (en) 1980-07-03
JPS55144379A (en) 1980-11-11

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