CA979987A - Magnetic core structures for instrument transformers - Google Patents

Magnetic core structures for instrument transformers

Info

Publication number
CA979987A
CA979987A CA178,241A CA178241A CA979987A CA 979987 A CA979987 A CA 979987A CA 178241 A CA178241 A CA 178241A CA 979987 A CA979987 A CA 979987A
Authority
CA
Canada
Prior art keywords
magnetic core
core structures
instrument transformers
transformers
instrument
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
CA178,241A
Inventor
Edward C. Wentz
Belvin B. Ellis
Angelo A. Delaurentis
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of CA979987A publication Critical patent/CA979987A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01F27/341—Preventing or reducing no-load losses or reactive currents
    • 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
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Transformers For Measuring Instruments (AREA)
CA178,241A 1972-09-01 1973-08-07 Magnetic core structures for instrument transformers Expired CA979987A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28569672A 1972-09-01 1972-09-01

Publications (1)

Publication Number Publication Date
CA979987A true CA979987A (en) 1975-12-16

Family

ID=23095342

Family Applications (1)

Application Number Title Priority Date Filing Date
CA178,241A Expired CA979987A (en) 1972-09-01 1973-08-07 Magnetic core structures for instrument transformers

Country Status (3)

Country Link
US (1) US3775722A (en)
CA (1) CA979987A (en)
YU (1) YU36236B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214199A (en) * 1978-02-27 1980-07-22 Westinghouse Electric Corp. Current transformer
US4740663A (en) * 1987-01-02 1988-04-26 Continental Can Company, Inc. Transverse flux induction heating unit
US4754113A (en) * 1987-01-02 1988-06-28 Continental Can Company, Inc. Induction coil heating unit for heat sealing closures to containers
US6100783A (en) * 1999-02-16 2000-08-08 Square D Company Energy efficient hybrid core

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523071A (en) * 1944-06-01 1950-09-19 Gen Electric Electromagnetic induction apparatus
FR924543A (en) * 1945-03-28 1947-08-07 Brown Magnetic core for current transformers
US2524754A (en) * 1945-06-19 1950-10-10 Lumalampan Ab Unitary magnetic core and condenser
US2947960A (en) * 1957-09-18 1960-08-02 Superior Electric Co Winding and core therefor
US3179634A (en) * 1962-01-26 1965-04-20 Du Pont Aromatic polyimides and the process for preparing them
US3339163A (en) * 1965-01-29 1967-08-29 Westinghouse Electric Corp Split or separable core current transformers
GB1135462A (en) * 1966-05-13 1968-12-04 Ici Ltd Aromatic polyamides
US3469221A (en) * 1967-05-19 1969-09-23 Olsen Magnetic Inc Transformer core

Also Published As

Publication number Publication date
US3775722A (en) 1973-11-27
YU36236B (en) 1982-02-25
YU224173A (en) 1981-06-30

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