GB228575A - Improvements in current transformers - Google Patents

Improvements in current transformers

Info

Publication number
GB228575A
GB228575A GB2954/25A GB295425A GB228575A GB 228575 A GB228575 A GB 228575A GB 2954/25 A GB2954/25 A GB 2954/25A GB 295425 A GB295425 A GB 295425A GB 228575 A GB228575 A GB 228575A
Authority
GB
United Kingdom
Prior art keywords
transformers
current transformers
current
magnetizing current
pfiffner
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
GB2954/25A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB228575A publication Critical patent/GB228575A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

228,575. Pfiffner, E. Feb. 2, 1924, [Convention date]. Transformers. - In current transformers for measuring purposes, air gaps l are formed in the core so as to obtain a magnetically saturated iron path at s thereby causing the flux to be more nearly proportional to the magnetizing current. The resulting increased magnetizing current is compensated for by connecting a condenser c either across the secondary winding, across compensating windings W<a> as shown in Fig. 2, or across a separate auxiliary winding W<c> as shown in Fig. 3.
GB2954/25A 1924-02-02 1925-02-02 Improvements in current transformers Expired GB228575A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE228575X 1924-02-02

Publications (1)

Publication Number Publication Date
GB228575A true GB228575A (en) 1926-05-03

Family

ID=5867287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2954/25A Expired GB228575A (en) 1924-02-02 1925-02-02 Improvements in current transformers

Country Status (1)

Country Link
GB (1) GB228575A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752154C (en) * 1938-04-05 1953-04-27 Aeg Rod core current transformer
DE758478C (en) * 1939-12-03 1954-01-11 Aeg Device for indirect direct current measurement
GB2360135A (en) * 2000-03-06 2001-09-12 Gen Electric Current transformer with partial air gap

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752154C (en) * 1938-04-05 1953-04-27 Aeg Rod core current transformer
DE758478C (en) * 1939-12-03 1954-01-11 Aeg Device for indirect direct current measurement
GB2360135A (en) * 2000-03-06 2001-09-12 Gen Electric Current transformer with partial air gap
US6459349B1 (en) 2000-03-06 2002-10-01 General Electric Company Circuit breaker comprising a current transformer with a partial air gap

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