JPS56142614A - Clamp type current transformer - Google Patents

Clamp type current transformer

Info

Publication number
JPS56142614A
JPS56142614A JP4611480A JP4611480A JPS56142614A JP S56142614 A JPS56142614 A JP S56142614A JP 4611480 A JP4611480 A JP 4611480A JP 4611480 A JP4611480 A JP 4611480A JP S56142614 A JPS56142614 A JP S56142614A
Authority
JP
Japan
Prior art keywords
magnetic
core
closed
area
materials
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.)
Pending
Application number
JP4611480A
Other languages
Japanese (ja)
Inventor
Joji Owase
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.)
U R D KK
URD KK
Original Assignee
U R D KK
URD KK
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 U R D KK, URD KK filed Critical U R D KK
Priority to JP4611480A priority Critical patent/JPS56142614A/en
Publication of JPS56142614A publication Critical patent/JPS56142614A/en
Pending 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
    • H01F38/30—Constructions

Landscapes

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

Abstract

PURPOSE:To form a magnetic path by a small number of flat plate magnetic materials and miniaturize and lighten a device by a method wherein core materials for forming a closed magnetic circuit are surface-contacted with sufficiently large area as compared to the sectional area of the magnetic flux of magnetic path materials, and the closed magnetic circuit is closed. CONSTITUTION:A separating and contacting section is formed to at least one location of a magnetic closed circuit penetrating a coil, and the contacting area is made large sufficiently as compared to the sectional area of the magnetic flux of the magnetic closed circuit. For example, the both sides 2b, 2c of a flat plate-shaped core 2a penetrating a coil 3 wound on a bobbin 4 are bent in the same direction, and an AC wire A coated with an insulating material is held between the core 2a and can be clamped. The bobbin 4 is covered with an insulator 5, and a lead wire of the coil 3 is connected to terminals 6, 6. The noses 2d, 2e of the core are fixed by means of a clasp 7 so that the contacting area is made large sufficiently as compared to the sectinal area of the core 2. Thus, a magnetic path can be made up by one or a small number of flat plate magnetic materials having high permeability, and a device can be miniaturized and lightened.
JP4611480A 1980-04-08 1980-04-08 Clamp type current transformer Pending JPS56142614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4611480A JPS56142614A (en) 1980-04-08 1980-04-08 Clamp type current transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4611480A JPS56142614A (en) 1980-04-08 1980-04-08 Clamp type current transformer

Publications (1)

Publication Number Publication Date
JPS56142614A true JPS56142614A (en) 1981-11-07

Family

ID=12737968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4611480A Pending JPS56142614A (en) 1980-04-08 1980-04-08 Clamp type current transformer

Country Status (1)

Country Link
JP (1) JPS56142614A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005066641A1 (en) * 2003-12-05 2005-07-21 ABB ENTRELEC (Sciété par actions simplifiée) Auxiliary element for fixing a current sensor to an electrical conductor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005066641A1 (en) * 2003-12-05 2005-07-21 ABB ENTRELEC (Sciété par actions simplifiée) Auxiliary element for fixing a current sensor to an electrical conductor
CN100432678C (en) * 2003-12-05 2008-11-12 Abb接线端子公司 Auxiliary element for fixing a current sensor to an electrical conductor
US7649348B2 (en) 2003-12-05 2010-01-19 Abb Entrelec Auxiliary element for fixing a current sensor to an electrical conductor

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