GB540434A - Improvements in electromagnetic induction apparatus - Google Patents

Improvements in electromagnetic induction apparatus

Info

Publication number
GB540434A
GB540434A GB16915/40A GB1691540A GB540434A GB 540434 A GB540434 A GB 540434A GB 16915/40 A GB16915/40 A GB 16915/40A GB 1691540 A GB1691540 A GB 1691540A GB 540434 A GB540434 A GB 540434A
Authority
GB
United Kingdom
Prior art keywords
core
windings
insulating
nov
insulation
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
GB16915/40A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB540434A publication Critical patent/GB540434A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • 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
    • H01F30/10—Single-phase transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Of Coils (AREA)

Abstract

540,434. Transformers. BRITISH THOMSONHOUSTON CO., Ltd. Nov. 25, 1940, No. 16915. Convention date, Nov. 24, 1939. [Class 38 (ii)] A transformer comprises an annular core 11 formed of spirally wound strip, primary and secondary windings 13, 14 arranged side by side, an insulating barrier 28 between the windings and an insulating cylinder between the windings and the core. The windings have stepped sides and are supported on insulating rings 15, 19. The elements forming the insulating barriers 28 and the insulating cylinder 24, 25 are formed as shown in the exploded view, Fig. 5, to interlock with each other on assembly, the core structure, which is applied by the method described in Specification 501,474, serving to maintain the cylinder halves together. Insulation 27 is provided between the core 11 and casing 42, and in order to distribute voltage stresses symmetrically, an electrostatic shield 43 insulated from the core but connected to the high voltage winding 13 is provided so that the total capacity from the high voltage winding to the core equals the total capacity from the core to earth. For insulation and cooling purposes the casing may be filled with liquid or with a mixture of sand and wax.
GB16915/40A 1939-11-24 1940-11-25 Improvements in electromagnetic induction apparatus Expired GB540434A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US540434XA 1939-11-24 1939-11-24

Publications (1)

Publication Number Publication Date
GB540434A true GB540434A (en) 1941-10-16

Family

ID=21988412

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16915/40A Expired GB540434A (en) 1939-11-24 1940-11-25 Improvements in electromagnetic induction apparatus

Country Status (1)

Country Link
GB (1) GB540434A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011733A1 (en) * 1978-12-04 1980-06-11 Allied Corporation Magnetic core winding method and apparatus
GB2257840A (en) * 1991-06-10 1993-01-20 Gec Alsthom Ltd Distribution transformers.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011733A1 (en) * 1978-12-04 1980-06-11 Allied Corporation Magnetic core winding method and apparatus
GB2257840A (en) * 1991-06-10 1993-01-20 Gec Alsthom Ltd Distribution transformers.
GB2257840B (en) * 1991-06-10 1996-01-10 Gec Alsthom Ltd Distribution transformers

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