GB2001212A - Reactive current compensation of A.C. resistance welding apparatus - Google Patents

Reactive current compensation of A.C. resistance welding apparatus

Info

Publication number
GB2001212A
GB2001212A GB7829980A GB7829980A GB2001212A GB 2001212 A GB2001212 A GB 2001212A GB 7829980 A GB7829980 A GB 7829980A GB 7829980 A GB7829980 A GB 7829980A GB 2001212 A GB2001212 A GB 2001212A
Authority
GB
United Kingdom
Prior art keywords
reactive current
welding apparatus
resistance welding
winding
current compensation
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.)
Withdrawn
Application number
GB7829980A
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.)
Fael SA
Original Assignee
Fael 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 Fael SA filed Critical Fael SA
Publication of GB2001212A publication Critical patent/GB2001212A/en
Withdrawn legal-status Critical Current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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/241—Electric supplies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Generation Of Surge Voltage And Current (AREA)
  • Arc Welding Control (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

Reactive current compensation in alternating current resistance welding apparatus may in theory be achieved by the series-connection of a capacitor (24) into the secondary circuit of the welding transformer (10). However, the capacitance values required are impractically large. To overcome this, a current transformer (23) with a first and a second winding of which the first has a greater number of turns, is connected with its first winding (21) in series with the secondary winding (12) of the welding transformer (10). The reactive current capacitor (24) is connected across the second winding (22) of the current transformer (23). <IMAGE>
GB7829980A 1977-07-14 1978-07-14 Reactive current compensation of A.C. resistance welding apparatus Withdrawn GB2001212A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH871877 1977-07-14

Publications (1)

Publication Number Publication Date
GB2001212A true GB2001212A (en) 1979-01-24

Family

ID=4343923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7829980A Withdrawn GB2001212A (en) 1977-07-14 1978-07-14 Reactive current compensation of A.C. resistance welding apparatus

Country Status (3)

Country Link
DE (1) DE2830595A1 (en)
FR (1) FR2397264A1 (en)
GB (1) GB2001212A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096194A2 (en) * 1982-06-10 1983-12-21 Elpatronic Ag Device for continuously controlling the amplitude of a sine shaped A.C. electric current

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022180A1 (en) * 1990-07-12 1992-01-23 Gernot Sikora Soldering-welding tongs for metal workpiece e.g. copper - with AC generator connected to tongs by two=part transformer comprising part of series oscillating circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096194A2 (en) * 1982-06-10 1983-12-21 Elpatronic Ag Device for continuously controlling the amplitude of a sine shaped A.C. electric current
EP0096194A3 (en) * 1982-06-10 1984-07-18 Elpatronic Ag Device for continuously controlling the amplitude of a sine shaped a.c. electric current

Also Published As

Publication number Publication date
FR2397264A1 (en) 1979-02-09
DE2830595A1 (en) 1979-01-25

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)