GB976432A - Improvements relating to current transformers - Google Patents

Improvements relating to current transformers

Info

Publication number
GB976432A
GB976432A GB2056861A GB2056861A GB976432A GB 976432 A GB976432 A GB 976432A GB 2056861 A GB2056861 A GB 2056861A GB 2056861 A GB2056861 A GB 2056861A GB 976432 A GB976432 A GB 976432A
Authority
GB
United Kingdom
Prior art keywords
gaps
core
inch
reduce
current transformers
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
GB2056861A
Inventor
Norman Ashton
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB2056861A priority Critical patent/GB976432A/en
Publication of GB976432A publication Critical patent/GB976432A/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
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • 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
    • H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
    • H01F27/422—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers
    • H01F27/427—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers for current transformers

Landscapes

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

Abstract

976,432. Transformers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 22, 1962 [June 7, 1961], No. 20568/61. Heading H1T. A current transformer has one or more gaps in its core of such length, or such total length, that the alternating exciting current is not greater than 5% of the alternating primary current of the transformer. The total length of the magnetic (gaps) is of the order of 0.01 inch to 0.1 inch. The effect of the gap is to reduce the remanent flux to enable a much smaller core cross-section to be used as compared with a core having no gaps and to reduce very substantially the peak open-circuit secondary voltage.
GB2056861A 1961-06-07 1961-06-07 Improvements relating to current transformers Expired GB976432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2056861A GB976432A (en) 1961-06-07 1961-06-07 Improvements relating to current transformers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2056861A GB976432A (en) 1961-06-07 1961-06-07 Improvements relating to current transformers

Publications (1)

Publication Number Publication Date
GB976432A true GB976432A (en) 1964-11-25

Family

ID=10148067

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2056861A Expired GB976432A (en) 1961-06-07 1961-06-07 Improvements relating to current transformers

Country Status (1)

Country Link
GB (1) GB976432A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1288677B (en) * 1967-01-18 1969-02-06 Licentia Gmbh Measuring transducer for an alternating current which has at least temporarily a direct current component

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1288677B (en) * 1967-01-18 1969-02-06 Licentia Gmbh Measuring transducer for an alternating current which has at least temporarily a direct current component

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