GB710719A - Improvements in and relating to electric induction apparatus - Google Patents

Improvements in and relating to electric induction apparatus

Info

Publication number
GB710719A
GB710719A GB2643951A GB2643951A GB710719A GB 710719 A GB710719 A GB 710719A GB 2643951 A GB2643951 A GB 2643951A GB 2643951 A GB2643951 A GB 2643951A GB 710719 A GB710719 A GB 710719A
Authority
GB
United Kingdom
Prior art keywords
yoke portions
outer portion
wound
windings
portions
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
GB2643951A
Inventor
Eric Harold Ball
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
Priority to GB2643951A priority Critical patent/GB710719A/en
Publication of GB710719A publication Critical patent/GB710719A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/33—Arrangements for noise damping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/25—Magnetic cores made from strips or ribbons
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

710,719. Transformers and inductors. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 17, 1952 [Nov. 12, 1951], No. 26439/51. Class 38(2) An electric induction device such as a transformer or a ballast inductor for fluorescent lighting has a shell type core composed of co-axial coils of spirally wound strips of magnetic material forming an inner portion 2, two yoke portions 4 and an outer portion 6, one or more windings 3 being arranged within the space bounded by these core parts. When two or more windings are used, magnetic shunts, constructed similarly to the yoke portions 4, may be placed between them. The inner and outer core portions 2, 6 may, if desired, be wound in two pieces and arranged with an air gap between them. Since the flux travels at right angles to the planes of the laminations in the yoke portions the magnetic circuit will contain a number of small air gaps; thus a conventionally arranged air gap may be dispensed with. The yoke portions 4 may be wound on the inner portion as shown, or directly on the former 1 and may be enclosed within the outer portion 6 or extend to the external diameter of the outer portion. The device may be completely enclosed by a cover member.
GB2643951A 1951-11-12 1951-11-12 Improvements in and relating to electric induction apparatus Expired GB710719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2643951A GB710719A (en) 1951-11-12 1951-11-12 Improvements in and relating to electric induction apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2643951A GB710719A (en) 1951-11-12 1951-11-12 Improvements in and relating to electric induction apparatus

Publications (1)

Publication Number Publication Date
GB710719A true GB710719A (en) 1954-06-16

Family

ID=10243626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2643951A Expired GB710719A (en) 1951-11-12 1951-11-12 Improvements in and relating to electric induction apparatus

Country Status (1)

Country Link
GB (1) GB710719A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2962679A (en) * 1955-07-25 1960-11-29 Gen Electric Coaxial core inductive structures
US4689592A (en) * 1982-09-23 1987-08-25 Honeywell Inc. Combined transformer and inductor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2962679A (en) * 1955-07-25 1960-11-29 Gen Electric Coaxial core inductive structures
US4689592A (en) * 1982-09-23 1987-08-25 Honeywell Inc. Combined transformer and inductor

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