GB971681A - Single-phase welding transformers - Google Patents

Single-phase welding transformers

Info

Publication number
GB971681A
GB971681A GB1013463A GB1013463A GB971681A GB 971681 A GB971681 A GB 971681A GB 1013463 A GB1013463 A GB 1013463A GB 1013463 A GB1013463 A GB 1013463A GB 971681 A GB971681 A GB 971681A
Authority
GB
United Kingdom
Prior art keywords
core
leakage
winding
flux
march
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
GB1013463A
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Switzerland
BBC Brown Boveri France SA
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 Brown Boveri und Cie AG Switzerland, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Switzerland
Publication of GB971681A publication Critical patent/GB971681A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F29/146—Constructional details

Abstract

971,681. Transformers. BROWN, BOVERI & CO. Ltd. March 14, 1963 [March 16, 1962], No. 10134/63. Heading H1T. A single-phase welding transformer with a wound strip core has flux leakage members joining two opposite limbs and separating the primary and secondary windings, each member carrying a D.C. excitation winding to produce a closed D.C. flux in the complete leakage circuit, the windings being so distributed that any alternating voltages induced in them cancel out. Two U-shaped leakage paths U (Fig. 1) preferably of wound strip and each having a winding " e " may abut on either side the transformer core T. A complete magnetic circuit for D.C. flux may be formed on each side of the core T by splitting each of the core pieces U into two U-shaped core pieces U1 and U2 (Fig. 3, not shown). Air gaps may be provided between the leakage cores and core T, and a short-circuited damping winding on the leakage path may be used to reduce the D.C. power necessary for large welding currents, while a winding carrying the welding current may be connected in series opposition to the secondary.
GB1013463A 1962-03-16 1963-03-14 Single-phase welding transformers Expired GB971681A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH322962A CH391921A (en) 1962-03-16 1962-03-16 Single-phase transformer for welding purposes

Publications (1)

Publication Number Publication Date
GB971681A true GB971681A (en) 1964-09-30

Family

ID=4251425

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1013463A Expired GB971681A (en) 1962-03-16 1963-03-14 Single-phase welding transformers

Country Status (5)

Country Link
AT (1) AT242785B (en)
BE (1) BE629601A (en)
CH (1) CH391921A (en)
DE (1) DE1178959B (en)
GB (1) GB971681A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1118509A (en) * 1978-10-20 1982-02-16 Gerald Roberge Inductance variable
FR2445599A1 (en) * 1978-12-27 1980-07-25 Tran Van Sach Static AC generator - has electromagnetically coupled active and exciting coils giving higher output than transformer
FR2472824A1 (en) * 1979-12-27 1981-07-03 Tran Van Sach Static AC power generator - has straight permanent magnets and electromagnets operating from DC, AC or rectifier AC which are mounted in combination with inductor coils

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE707221C (en) * 1937-12-04 1941-06-16 Siemens Schuckertwerke Akt Ges Three-phase transformer
DE698459C (en) * 1938-02-20 1940-11-11 Aeg Single-phase leakage transformer with controllable direct current pre-magnetized shunt
NL75971C (en) * 1947-07-08 1900-01-01
DE843443C (en) * 1950-05-24 1952-07-07 Siemens Ag transformer
US2703391A (en) * 1952-03-07 1955-03-01 Charles F Gunderson Saturable reactor
DE1064624B (en) * 1956-07-17 1959-09-03 Walter Niepenberg Jun Transformer with a fixed variable magnetic shunt, especially a stray field transformer
DE1112223B (en) * 1959-07-30 1961-08-03 Elektromotoren Kirsch Bernhard Portable arc welding transformer
DE1104639B (en) * 1960-01-27 1961-04-13 Bbc Brown Boveri & Cie Regulating arrangement for welding rectifier

Also Published As

Publication number Publication date
CH391921A (en) 1965-05-15
DE1178959B (en) 1964-10-01
AT242785B (en) 1965-10-11
BE629601A (en)

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