Nothing Special   »   [go: up one dir, main page]

DK0497681T3 - Transformer and a method of manufacturing it - Google Patents

Transformer and a method of manufacturing it

Info

Publication number
DK0497681T3
DK0497681T3 DK92400208.2T DK92400208T DK0497681T3 DK 0497681 T3 DK0497681 T3 DK 0497681T3 DK 92400208 T DK92400208 T DK 92400208T DK 0497681 T3 DK0497681 T3 DK 0497681T3
Authority
DK
Denmark
Prior art keywords
transformer
sheet metal
segments
manufacturing
permanently
Prior art date
Application number
DK92400208.2T
Other languages
Danish (da)
Inventor
Claude Cornibe
Original Assignee
Bardin Ets
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 Bardin Ets filed Critical Bardin Ets
Application granted granted Critical
Publication of DK0497681T3 publication Critical patent/DK0497681T3/en

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
    • H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
    • H01F41/022—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) by winding the strips or ribbons around a coil
    • 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
    • H01F27/25—Magnetic cores made from strips or ribbons
    • 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
    • H01F2038/305—Constructions with toroidal magnetic core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Manufacturing Of Electric Cables (AREA)

Abstract

Transformer torus comprising a magnetic circuit consisting of a plurality of segments of sheet metal strip (2) permanently having the general shape of a slit cylinder, the various sheet metal segments (2) being arranged concentrically and being assembled in this position at at least one point (4) of their circumference, for example by welding. Application: in particular to measurement transformers, for example for detecting faults in electrical cables. <IMAGE>
DK92400208.2T 1991-01-29 1992-01-27 Transformer and a method of manufacturing it DK0497681T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9100982A FR2672152B1 (en) 1991-01-29 1991-01-29 TRANSFORMER TORE, AND METHOD FOR MANUFACTURING SUCH A TORE.

Publications (1)

Publication Number Publication Date
DK0497681T3 true DK0497681T3 (en) 1998-03-09

Family

ID=9409153

Family Applications (1)

Application Number Title Priority Date Filing Date
DK92400208.2T DK0497681T3 (en) 1991-01-29 1992-01-27 Transformer and a method of manufacturing it

Country Status (7)

Country Link
EP (1) EP0497681B1 (en)
AT (1) ATE156929T1 (en)
DE (1) DE69221512T2 (en)
DK (1) DK0497681T3 (en)
ES (1) ES2108096T3 (en)
FR (1) FR2672152B1 (en)
GR (1) GR3025040T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700395B1 (en) * 1993-01-08 1995-04-21 Bardin Ets Transformer, in particular measuring transformer, for example for the detection of faults on electric cables.
MY132433A (en) * 1995-01-10 2007-10-31 Procter & Gamble Foams made from high internal phase emulsions useful as absorbent members for catamenial pads
US5770634A (en) * 1995-06-07 1998-06-23 The Procter & Gamble Company Foam materials for insulation, derived from high internal phase emulsions
EP0999565A1 (en) * 1998-11-06 2000-05-10 Chauvin Arnoux Measuring transformer for measuring an electric current
WO2017077379A1 (en) * 2015-11-05 2017-05-11 Hm Power Ab Current sensor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB539093A (en) * 1939-06-21 1941-08-27 British Thomson Houston Co Ltd Improvements in and relating to cores for electrical apparatus and method of making the same
US2972804A (en) * 1955-12-29 1961-02-28 Westinghouse Electric Corp Method of making stepped-lap core for inductive apparatus
JPS5450819A (en) * 1977-09-29 1979-04-21 Matsushita Electric Ind Co Ltd Manufacture of transformer

Also Published As

Publication number Publication date
EP0497681B1 (en) 1997-08-13
GR3025040T3 (en) 1998-01-30
ES2108096T3 (en) 1997-12-16
DE69221512T2 (en) 1997-12-18
FR2672152B1 (en) 1993-05-07
ATE156929T1 (en) 1997-08-15
FR2672152A1 (en) 1992-07-31
EP0497681A1 (en) 1992-08-05
DE69221512D1 (en) 1997-09-18

Similar Documents

Publication Publication Date Title
EP0238922B1 (en) Magnetic position sensor
CA2083008A1 (en) Magnetic field sensing device
FR2470387B1 (en) MEASUREMENT TRANSFORMER FOR MEASURING A MAGNETIC FIELD, PARTICULARLY GENERATED BY A MEASUREMENT CURRENT
DE3677706D1 (en) MANUFACTURING METHOD FOR A TRANSFORMER WITH COAXIAL COILS.
IT8021438A0 (en) MEASUREMENT TRANSFORMER USEFUL FOR MEASURING, WITHOUT POTENTIAL CONSTRAINTS, ELECTRICAL CURRENTS OR VOLTAGES.
AT381183B (en) DIFFERENTIAL TRANSFORMER CORE FOR FAULT CURRENT CIRCUIT BREAKERS WITH A RING TAPE CORE MAGNETIZABLE BY PULSATING CURRENTS
DK0497681T3 (en) Transformer and a method of manufacturing it
DK475877A (en) METHOD AND APPARATUS FOR ENGAGING MAGNETIC MARKS ON A WIRE CABLE
ATE38736T1 (en) TRANSFORMER AND METHOD OF MAKING THE SAME.
DE69008226D1 (en) Closed ferrite magnetic circuit transformer.
NO177513C (en) Current transformer for improved measurement accuracy.
KR840007047A (en) Device for measuring position of moving member relative to fixed member
BE882511A (en) IMPROVEMENTS ON INTERMEDIATE APPARATUS FOR WINDING METAL STRIPS
FR2720835B1 (en) Current measurement circuit comprising a mutual inductance transformer and an integrator circuit.
ATA77689A (en) DEVICE FOR DISPLAYING AN APPLICABLE VOLTAGE, PREFERRED CURRENT TRANSFORMER
DE59101427D1 (en) Shield for an electrical device.
IT8119687A0 (en) EQUIPMENT FOR TESTING SURFACE DEFECTS WITH EDDISH CURRENTS.
NO773445L (en) TREBENET IRON CORE FOR A CHOOSE COIL OR A TRANSFORMER.
JPS5414232A (en) Method of detecting focus position depending on chromatic aberration of lens
DE3676446D1 (en) CURRENT TRANSFORMER FOR A CIRCUIT BREAKER.
RU93025872A (en) METHOD FOR CONTROL DEFORMATION OF WINDING POWER TRANSFORMERS
DE69727896D1 (en) Transformer provided with a current divider for current measurement
JPS51134827A (en) Coiled core type transformer and its manufacturing method
DE69114584D1 (en) Current transformer mounting device for a circuit breaker.
GB2001196A (en) Temperature measuring device