GB1302419A - - Google Patents

Info

Publication number
GB1302419A
GB1302419A GB2855770A GB2855770A GB1302419A GB 1302419 A GB1302419 A GB 1302419A GB 2855770 A GB2855770 A GB 2855770A GB 2855770 A GB2855770 A GB 2855770A GB 1302419 A GB1302419 A GB 1302419A
Authority
GB
United Kingdom
Prior art keywords
yoke
laminations
leg
june
joints
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
GB2855770A
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 filed Critical
Publication of GB1302419A publication Critical patent/GB1302419A/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
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core
    • Y10T29/49078—Laminated

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

1302419 Transformers WESTINGHOUSE ELECTRIC CORP 12 June 1970 [20 June 1969] 28557/70 Heading HIT The ends of the laminations forming the centre leg 18 of a core, e.g. for a polyphase transformer, are in the form of truncated isosceles triangles penetrating into notches in the yoke (aminations 20, 22, the joints in adjacent layers being relatively stepped, there being at least three steps in the same direction before reversal the inner leg laminations may all be the same length. The joints between the yoke and outer leg laminations 14, 16 are mitred and also stopped. Each yoke lamination may be made in two parts, a truncated triangle and a parallelogram which is notched to receive the centre leg.
GB2855770A 1969-06-20 1970-06-12 Expired GB1302419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83499869A 1969-06-20 1969-06-20

Publications (1)

Publication Number Publication Date
GB1302419A true GB1302419A (en) 1973-01-10

Family

ID=25268307

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2855770A Expired GB1302419A (en) 1969-06-20 1970-06-12

Country Status (5)

Country Link
US (1) US3559136A (en)
JP (1) JPS4922607B1 (en)
BE (1) BE752299A (en)
FR (1) FR2049200B1 (en)
GB (1) GB1302419A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5272420A (en) * 1975-12-12 1977-06-16 Hitachi Ltd Inner iron type transformer core
US4201966A (en) * 1979-01-04 1980-05-06 Westinghouse Electric Corp. Magnetic core structure
US4200854A (en) * 1979-01-04 1980-04-29 Westinghouse Electric Corp. Core with step-lap joints
JPS5844705A (en) * 1981-09-10 1983-03-15 Mitsubishi Electric Corp Iron core for electromagnetic induction apparatus
US7249546B1 (en) 1991-05-13 2007-07-31 Franklin Electric Co., Ltd. Die-shaping apparatus and process and product formed thereby
KR101904100B1 (en) * 2016-12-20 2018-10-04 효성중공업 주식회사 Core for transformer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL93030C (en) * 1900-01-01
FR1241331A (en) * 1958-10-15 1960-09-16 Westinghouse Electric Corp Magnetic core construction
FR1256000A (en) * 1960-02-01 1961-03-17 Westinghouse Electric Corp Magnetic core structure
GB923276A (en) * 1960-02-09 1963-04-10 Ferranti Ltd Improvements relating to electrical transformers
FR1324664A (en) * 1962-06-07 1963-04-19 sheet metal elements for magnetic circuits

Also Published As

Publication number Publication date
BE752299A (en) 1970-12-01
US3559136A (en) 1971-01-26
JPS4922607B1 (en) 1974-06-10
FR2049200A1 (en) 1971-03-26
FR2049200B1 (en) 1975-02-21

Similar Documents

Publication Publication Date Title
GB1424982A (en) Three-phase transformer
GB854728A (en) Improvements relating to electrical transformers
GB1302419A (en)
US2544871A (en) Three-phase transformer
GB1217703A (en) Electrical winding structures
GB1217903A (en) Improvements in and relating to laminated magnetic core structures for large transformers or choke coils
GB646859A (en) Improvements in or relating to the manufacture of magnetic cores for electric induction apparatus
CA939765A (en) Laminated magnetic core for induction devices and laminations for forming such magnetic core
GB1142598A (en) High voltage coil
GB1417122A (en) Transformers
GB912599A (en) Cores for dynamoelectric machine
GB851241A (en) Improvements in or relating to laminated electromagnetic cores
GB1190454A (en) Superconductor Transformers not Employing Iron Cores.
GB693288A (en) Improvements in and relating to electric induction apparatus
GB887081A (en) Improvements in and relating to laminated cores
GB554000A (en) Improvements in or relating to magnetic core structures
GB735228A (en) Improvements in or relating to laminated cores for electric transformers, inductances and the like
GB907827A (en) Improvements in or relating to magnetic core structures for use in electrical inductive apparatus
GB1271635A (en) Improvements relating to transformers
GB554384A (en) Improvements relating to cores for electric transformers and chokes
GB1384950A (en) Transformer
GB1400599A (en) Ferromagnetic core structures for transformers or choke coils
GB887092A (en) Improved method of constructing transformer cores
GB688861A (en) Improvements in or relating to laminated magnetic cores for single phase transformers
GB613045A (en) Improvements in or relating to transformers

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee