SE7909924L - STROMKELLA FOR REAR WELDING - Google Patents
STROMKELLA FOR REAR WELDINGInfo
- Publication number
- SE7909924L SE7909924L SE7909924A SE7909924A SE7909924L SE 7909924 L SE7909924 L SE 7909924L SE 7909924 A SE7909924 A SE 7909924A SE 7909924 A SE7909924 A SE 7909924A SE 7909924 L SE7909924 L SE 7909924L
- Authority
- SE
- Sweden
- Prior art keywords
- transformer
- rectifiers
- phase
- welding
- coil
- Prior art date
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
- H02M5/02—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
- H02M5/27—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 for conversion of frequency
- H02M5/271—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 for conversion of frequency from a three phase input voltage
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
In a power source for arc welding comprising a transformer (10), controllable rectifiers are provided for generating an alternating single- phase welding current with a welding current frequency which is one- and-one-half or three times the supply frequency. In order to provide a transformer which structurally is relatively small in size, and for the purpose of reducing the number of controllable rectifiers, the power source is characterized in that, the secondary winding (11) of the transformer (10) is connected to the workpiece (12) and to the welding torch (13), the primary winding (14) of the transformer (10) is provided with three delta-connected part-coils (15, 16, 17) which have identical windings, one end (15a, 16a, 17a) of each primary part-coil (15, 16, 17) is connected to a centre tap (M) of three smoothing chokes (18, 19, 20), the other end (15b, 16b, 17b) of each primary part-coil (15, 16, 17) is connected to one phase (R, S, T) of a three-phase network and to one terminal (21, 22, 23) of two anti- parallel-connected rectifiers (24/25, 26/27, 28/29), and the other terminals (30/31, 32/33, 34/35) of the rectifiers (24 to 29) are connected to the start (18a, 19a, 20a) and to the end (18b, 19b, 20b) of the smoothing choke (18, 19, 20). <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782855662 DE2855662A1 (en) | 1978-12-22 | 1978-12-22 | POWER SOURCE FOR ARC WELDING |
Publications (1)
Publication Number | Publication Date |
---|---|
SE7909924L true SE7909924L (en) | 1980-06-23 |
Family
ID=6058118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7909924A SE7909924L (en) | 1978-12-22 | 1979-11-30 | STROMKELLA FOR REAR WELDING |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS5586686A (en) |
AT (1) | ATA710479A (en) |
BR (1) | BR7908326A (en) |
DE (1) | DE2855662A1 (en) |
FR (1) | FR2444527A1 (en) |
GB (1) | GB2039167A (en) |
IT (1) | IT1126529B (en) |
SE (1) | SE7909924L (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1039074C (en) * | 1990-06-08 | 1998-07-08 | 佐藤亮拿 | Power supply unit and welding equipment |
US6114655A (en) * | 1997-06-11 | 2000-09-05 | Illinois Tool Works Inc. | Method and apparatus for producing welding power |
US6177651B1 (en) * | 1998-06-11 | 2001-01-23 | Illinois Tool Works Inc. | Method and apparatus for producing welding power |
AT411444B (en) * | 2000-06-28 | 2004-01-26 | Fronius Schweissmasch Prod | WELDING MACHINE, WHICH ON ONE, TWO OR THREE-PHASE NETWORKS CAN BE OPERATED |
-
1978
- 1978-12-22 DE DE19782855662 patent/DE2855662A1/en not_active Withdrawn
-
1979
- 1979-11-05 AT AT0710479A patent/ATA710479A/en not_active Application Discontinuation
- 1979-11-30 SE SE7909924A patent/SE7909924L/en not_active Application Discontinuation
- 1979-12-07 IT IT27944/79A patent/IT1126529B/en active
- 1979-12-10 JP JP15930479A patent/JPS5586686A/en active Pending
- 1979-12-14 GB GB7943189A patent/GB2039167A/en not_active Withdrawn
- 1979-12-19 BR BR7908326A patent/BR7908326A/en unknown
- 1979-12-21 FR FR7931506A patent/FR2444527A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2444527B3 (en) | 1982-02-26 |
BR7908326A (en) | 1980-09-16 |
FR2444527A1 (en) | 1980-07-18 |
IT7927944A0 (en) | 1979-12-07 |
ATA710479A (en) | 1982-07-15 |
JPS5586686A (en) | 1980-06-30 |
IT1126529B (en) | 1986-05-21 |
GB2039167A (en) | 1980-07-30 |
DE2855662A1 (en) | 1980-07-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
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