GB879940A - Improvements relating to electric induction apparatus - Google Patents

Improvements relating to electric induction apparatus

Info

Publication number
GB879940A
GB879940A GB2312157A GB2312157A GB879940A GB 879940 A GB879940 A GB 879940A GB 2312157 A GB2312157 A GB 2312157A GB 2312157 A GB2312157 A GB 2312157A GB 879940 A GB879940 A GB 879940A
Authority
GB
United Kingdom
Prior art keywords
insulated
members
july
core sections
induction apparatus
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
GB2312157A
Inventor
Eric Harold Ball
Harold Robert Ruff
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB2312157A priority Critical patent/GB879940A/en
Publication of GB879940A publication Critical patent/GB879940A/en
Expired 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
    • H01F30/10—Single-phase transformers

Abstract

879,940. Inductances. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 8, 1958 [July 22, 1957], No. 23121/57. Class 38 (2). A choke, e.g. for use with fluorescent lighting, has inner and outer cores 1 and 2 made of spirally wound strips of insulated magnetic material and yokes 3, 4 made of resin bonded iron flakes and formed by moulding or machining. The core sections 1 and 2, and the winding space 5 between them, may be of oval or other non-circular shapes and both core parts and coil 6 may be vacuum impregnated with a thermosetting resin. The yoke members 3, 4 may be insulated from members 1 and 2 by thin insulating members 10 and a further air gap 11 may be provided. The turns of the wound core sections may be insulated by varnish or by interleafing them with paper insulation. The clamping stud 8 is of non-ferrous material. Specification 710,719 is referred to.
GB2312157A 1957-07-22 1957-07-22 Improvements relating to electric induction apparatus Expired GB879940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2312157A GB879940A (en) 1957-07-22 1957-07-22 Improvements relating to electric induction apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2312157A GB879940A (en) 1957-07-22 1957-07-22 Improvements relating to electric induction apparatus

Publications (1)

Publication Number Publication Date
GB879940A true GB879940A (en) 1961-10-11

Family

ID=10190446

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2312157A Expired GB879940A (en) 1957-07-22 1957-07-22 Improvements relating to electric induction apparatus

Country Status (1)

Country Link
GB (1) GB879940A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5345209A (en) * 1992-07-30 1994-09-06 Tdk Corporation Adjustment system for a coil device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5345209A (en) * 1992-07-30 1994-09-06 Tdk Corporation Adjustment system for a coil device
US5572788A (en) * 1992-07-30 1996-11-12 Tdk Corporation Coil device

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