GB8901136D0 - Ring transformer - Google Patents

Ring transformer

Info

Publication number
GB8901136D0
GB8901136D0 GB898901136A GB8901136A GB8901136D0 GB 8901136 D0 GB8901136 D0 GB 8901136D0 GB 898901136 A GB898901136 A GB 898901136A GB 8901136 A GB8901136 A GB 8901136A GB 8901136 D0 GB8901136 D0 GB 8901136D0
Authority
GB
United Kingdom
Prior art keywords
ring transformer
transformer
ring
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Withdrawn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
GB898901136A
Other versions
GB2227888A (en
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.)
Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr
Original Assignee
Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr
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 Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr filed Critical Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr
Publication of GB8901136D0 publication Critical patent/GB8901136D0/en
Publication of GB2227888A publication Critical patent/GB2227888A/en
Withdrawn legal-status Critical Current

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
    • H01F30/16—Toroidal transformers
    • 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
    • B23K11/08—Seam welding not restricted to one of the preceding subgroups
    • B23K11/093—Seam welding not restricted to one of the preceding subgroups for curved planar seams
    • B23K11/0935—Seam welding not restricted to one of the preceding subgroups for curved planar seams of tube sections

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)
GB8901136A 1989-01-30 1989-01-19 Ring transformer for welding pipes Withdrawn GB2227888A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8901127A FR2642566A1 (en) 1989-01-30 1989-01-30 ANNULAR TRANSFORMER

Publications (2)

Publication Number Publication Date
GB8901136D0 true GB8901136D0 (en) 1989-03-15
GB2227888A GB2227888A (en) 1990-08-08

Family

ID=9378253

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8901136A Withdrawn GB2227888A (en) 1989-01-30 1989-01-19 Ring transformer for welding pipes

Country Status (2)

Country Link
FR (1) FR2642566A1 (en)
GB (1) GB2227888A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2771109B2 (en) 1994-03-16 1998-07-02 北村機電株式会社 Wound iron core
CN2232618Y (en) * 1995-12-28 1996-08-07 胡素珍 Transformer using magnetic material protection box as low-voltage winding

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1077458A (en) * 1953-05-20 1954-11-08 Cem Comp Electro Mec Secondary high current transformers
DE1132265B (en) * 1959-12-09 1962-06-28 Combustion Eng Device for butt welding the ends of metal pipes
DE2115574B2 (en) * 1971-03-31 1973-03-22 AEG-Elotherm GmbH, 5630 Remscheid-Hasten POWER TRANSFORMER FOR MEDIUM FREQUENCY
FR2511625A1 (en) * 1981-08-21 1983-02-25 Inst Elektroswarki Patona Internal tube resistance butt welding rig - with welding transformer connected to shoes on clamping devices

Also Published As

Publication number Publication date
FR2642566A1 (en) 1990-08-03
GB2227888A (en) 1990-08-08

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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)