GB1515565A - Star-shaped magnetic core elements - Google Patents

Star-shaped magnetic core elements

Info

Publication number
GB1515565A
GB1515565A GB2190875A GB2190875A GB1515565A GB 1515565 A GB1515565 A GB 1515565A GB 2190875 A GB2190875 A GB 2190875A GB 2190875 A GB2190875 A GB 2190875A GB 1515565 A GB1515565 A GB 1515565A
Authority
GB
United Kingdom
Prior art keywords
star
loop
legs
shaped magnetic
magnetic core
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
GB2190875A
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.)
Martin & Cie Ets
Original Assignee
Martin & Cie Ets
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
Priority claimed from FR7417646A external-priority patent/FR2272471A1/en
Priority claimed from FR7435225A external-priority patent/FR2288379A2/en
Priority claimed from FR7509707A external-priority patent/FR2305833A2/en
Application filed by Martin & Cie Ets filed Critical Martin & Cie Ets
Publication of GB1515565A publication Critical patent/GB1515565A/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
    • H01F27/24—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
    • H01F30/12—Two-phase, three-phase or polyphase 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
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
    • 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
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets
    • H01F41/024—Manufacturing of magnetic circuits made from deformed sheets

Abstract

1515565 Transformers ETABS MARTIN ET CIE 21 May 1975 [21 May 1974 18 Oct 1974 27 March 1975] 21908/75 Heading H1T [Also in Division B3] A star-shaped magnetic core element for a poly-phase transformer comprises at least one endless loop (1, Fig. 6a or 31, Fig. 3) of magnetic material, the loop being included in at least two legs of the star and a portion of the loop being folded upon itself in each of the two legs. As shown the core element is formed from a single loop 1 or three loops 31 wound from strip and pressed into shape between dies and baked, a lubricant such as grease, oil or talc being used between the layers to facilitate the deformation. A yoke 5 is clamped on one or each side of the star to close the magnetic circuit between the legs.
GB2190875A 1974-05-21 1975-05-21 Star-shaped magnetic core elements Expired GB1515565A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR7417646A FR2272471A1 (en) 1974-05-21 1974-05-21 Core assembly for three limb transformer - without joints in flux path at core centre
FR7435225A FR2288379A2 (en) 1974-10-18 1974-10-18 Core assembly for three limb transformer - without joints in flux path at core centre
FR7509707A FR2305833A2 (en) 1975-03-27 1975-03-27 Core assembly for three limb transformer - without joints in flux path at core centre

Publications (1)

Publication Number Publication Date
GB1515565A true GB1515565A (en) 1978-06-28

Family

ID=27250307

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2190875A Expired GB1515565A (en) 1974-05-21 1975-05-21 Star-shaped magnetic core elements

Country Status (4)

Country Link
JP (1) JPS50161623A (en)
BR (1) BR7503131A (en)
DE (1) DE2521666A1 (en)
GB (1) GB1515565A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10734154B2 (en) 2017-07-04 2020-08-04 Fanuc Corporation Core body reactor
CN113226726A (en) * 2018-10-26 2021-08-06 宾夕法尼亚州大学理事会 Patterned magnetic core

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4942605B2 (en) * 2007-10-03 2012-05-30 トクデン株式会社 Three-phase induction machine
DE102010001394A1 (en) * 2010-01-29 2011-08-04 Vacuumschmelze GmbH & Co. KG, 63450 Antenna core, antenna and method for producing an antenna core and an antenna
JP6259277B2 (en) * 2013-12-20 2018-01-10 トクデン株式会社 Scott connection transformer iron core and Scott connection transformer
KR102195785B1 (en) 2013-12-20 2020-12-28 토쿠덴 가부시기가이샤 Power circuit, iron core for scott connected transformer, scott connected transformer and superheated steam generator
JP6378287B2 (en) * 2016-10-31 2018-08-22 ファナック株式会社 Three-phase AC reactor having a coil directly connected to an external device and method for manufacturing the same
JP6633785B2 (en) * 2019-01-17 2020-01-22 ファナック株式会社 Core body, reactor and manufacturing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10734154B2 (en) 2017-07-04 2020-08-04 Fanuc Corporation Core body reactor
US11107618B2 (en) 2017-07-04 2021-08-31 Fanuc Corporation Core body and reactor
CN113226726A (en) * 2018-10-26 2021-08-06 宾夕法尼亚州大学理事会 Patterned magnetic core

Also Published As

Publication number Publication date
BR7503131A (en) 1976-04-27
DE2521666A1 (en) 1975-12-04
JPS50161623A (en) 1975-12-27

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Legal Events

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