GB1393538A - Electrical device - Google Patents

Electrical device

Info

Publication number
GB1393538A
GB1393538A GB5213571A GB5213571A GB1393538A GB 1393538 A GB1393538 A GB 1393538A GB 5213571 A GB5213571 A GB 5213571A GB 5213571 A GB5213571 A GB 5213571A GB 1393538 A GB1393538 A GB 1393538A
Authority
GB
United Kingdom
Prior art keywords
housing
windings
lamination
nov
stacks
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
GB5213571A
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.)
HEYES CO Ltd
Original Assignee
HEYES 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 HEYES CO Ltd filed Critical HEYES CO Ltd
Priority to GB5213571A priority Critical patent/GB1393538A/en
Publication of GB1393538A publication Critical patent/GB1393538A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances
    • H01F38/10—Ballasts, e.g. for discharge lamps
    • 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
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type

Abstract

1393538 Inductors HEYES & CO Ltd 9 Nov 1972 [10 Nov 1971] 52135/71 Heading HIT An electrical inductor, for use with discharge lamps and the like, is fitted around the neck thereof as ballast, and comprises windings 12 around generally trapezoidal lamination stacks 11 which are arranged symmetrically around an aperture through which the lamp is inserted, at least two neighbouring stacks being spaced apart, as at 16 where an airgap is produced by an insulating spacer. The lamination stacks comprise elements of a soft magnetic material, e.g. low-silicon magnetic steel and are rendered integral by inter-element resin insulation which is bonded by curing. A heat shrink sleeve (14, Fig. 2, not shown) may surround the lamination and separate it from the winding 12 which may be self supporting. The assembly is enclosed in a housing 17 and a heat conductive resin, e.g. epoxy, polyester, is poured into the housing and cured, and a terminal block is included as at 19, and windings 12 each form a sub-unit of the complete inductance; taps may also be provided on one of the windings. The housing may be permanent or removed after assembly, acting merely as a mould.
GB5213571A 1971-11-10 1971-11-10 Electrical device Expired GB1393538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5213571A GB1393538A (en) 1971-11-10 1971-11-10 Electrical device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5213571A GB1393538A (en) 1971-11-10 1971-11-10 Electrical device

Publications (1)

Publication Number Publication Date
GB1393538A true GB1393538A (en) 1975-05-07

Family

ID=10462768

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5213571A Expired GB1393538A (en) 1971-11-10 1971-11-10 Electrical device

Country Status (1)

Country Link
GB (1) GB1393538A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428903A1 (en) * 1978-06-15 1980-01-11 Inst Elektroswarki Patona ANNULAR TRANSFORMER OF ELECTRIC WELDING END-TO-END
FR2480025A1 (en) * 1980-04-02 1981-10-09 Sundstrand Corp SUPPORT DEVICE FOR CURRENT TRANSFORMERS
EP0082954A1 (en) * 1981-12-28 1983-07-06 Allied Corporation Toroidal core electromagnetic device
US5587694A (en) * 1993-06-30 1996-12-24 Matsushita Electric Industrial Co., Ltd. Reactor with core gap spacers
US5926946A (en) * 1994-12-28 1999-07-27 Matsushita Electric Industrial Co., Ltd. Method for manufacturing reactor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428903A1 (en) * 1978-06-15 1980-01-11 Inst Elektroswarki Patona ANNULAR TRANSFORMER OF ELECTRIC WELDING END-TO-END
DE2914540A1 (en) * 1978-06-15 1980-01-24 Inst Elektroswarki Patona RING TRANSFORMER FOR RESISTANCE-WELDING WELDING MACHINES
FR2480025A1 (en) * 1980-04-02 1981-10-09 Sundstrand Corp SUPPORT DEVICE FOR CURRENT TRANSFORMERS
EP0082954A1 (en) * 1981-12-28 1983-07-06 Allied Corporation Toroidal core electromagnetic device
US4524342A (en) * 1981-12-28 1985-06-18 Allied Corporation Toroidal core electromagnetic device
US5587694A (en) * 1993-06-30 1996-12-24 Matsushita Electric Industrial Co., Ltd. Reactor with core gap spacers
US5926946A (en) * 1994-12-28 1999-07-27 Matsushita Electric Industrial Co., Ltd. Method for manufacturing reactor

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee