GB1306910A - Chokes or transformers - Google Patents

Chokes or transformers

Info

Publication number
GB1306910A
GB1306910A GB605172A GB1306910DA GB1306910A GB 1306910 A GB1306910 A GB 1306910A GB 605172 A GB605172 A GB 605172A GB 1306910D A GB1306910D A GB 1306910DA GB 1306910 A GB1306910 A GB 1306910A
Authority
GB
United Kingdom
Prior art keywords
core
transformers
chokes
berndeisel
johann
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
GB605172A
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.)
Berndeisel & Co Johann
Original Assignee
Berndeisel & Co Johann
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 Berndeisel & Co Johann filed Critical Berndeisel & Co Johann
Publication of GB1306910A publication Critical patent/GB1306910A/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
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

1306910 Transformers and inductors JOHANN BERNDEISEL & CO 30 April 1970 6051/72 Divided out of 1288447 Heading HIT A choke or transformer is enclosed in a two part metal screening casing 21, 23 the flanged ends of the U-section part 21 being held in grooves in the springy cover member 23 to press the free ends of core links 5, 6 against the ends of core member 3. Core member 3 is also pressed by member 23 so that it squeezes an insulating insert 8 against the end of core members 2 thus forming a non-magnetic gap. The core may be formed of U and T portions or the central limb may be a separate member.
GB605172A 1970-04-30 1970-04-30 Chokes or transformers Expired GB1306910A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB605172 1970-04-30

Publications (1)

Publication Number Publication Date
GB1306910A true GB1306910A (en) 1973-02-14

Family

ID=9807523

Family Applications (1)

Application Number Title Priority Date Filing Date
GB605172A Expired GB1306910A (en) 1970-04-30 1970-04-30 Chokes or transformers

Country Status (1)

Country Link
GB (1) GB1306910A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240057A (en) * 1978-08-19 1980-12-16 Firma Hermann Schwabe Inductive element construction, particularly fluorescent lamp ballast
GB2129622A (en) * 1982-10-28 1984-05-16 Telcon Magnetic Components Lim Magnetic cores

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240057A (en) * 1978-08-19 1980-12-16 Firma Hermann Schwabe Inductive element construction, particularly fluorescent lamp ballast
GB2129622A (en) * 1982-10-28 1984-05-16 Telcon Magnetic Components Lim Magnetic cores

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees