FI954140A - Power converter, especially for an electronic electricity meter - Google Patents

Power converter, especially for an electronic electricity meter Download PDF

Info

Publication number
FI954140A
FI954140A FI954140A FI954140A FI954140A FI 954140 A FI954140 A FI 954140A FI 954140 A FI954140 A FI 954140A FI 954140 A FI954140 A FI 954140A FI 954140 A FI954140 A FI 954140A
Authority
FI
Finland
Prior art keywords
plane
conductor
conductor loop
electricity meter
electronic electricity
Prior art date
Application number
FI954140A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI954140A0 (en
Inventor
Frank Herrmann
Otto Raetsch
Original Assignee
Stepper & Co
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 Stepper & Co filed Critical Stepper & Co
Publication of FI954140A publication Critical patent/FI954140A/en
Publication of FI954140A0 publication Critical patent/FI954140A0/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/06—Magnetic circuits of induction meters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • 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

Abstract

A current transformer (10) having a conductor which forms an approximately U-shaped conductor loop (11) lying approximately in a plane and flowed through by the current to be measured, inside which conductor a coil (13) which can be connected to an electronic electricity meter is arranged, the windings of which lie parallel to the plane of the conductor loop (11), the conductor loop (11) and the coil (13) being enclosed by a cover made of a magnetically conducting material which also acts as screening. Easily producible construction and high long-term stability in operation are achieved if, according to the invention, the soft magnetic cover is made by at least one flat lamellar element (14) whose plane extends approximately perpendicularly to the plane of the conductor loop (11). <IMAGE>
FI954140A 1993-03-05 1995-09-04 Electric current transducer, especially for electronic electricity meters FI954140A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP93103524A EP0618451B1 (en) 1993-03-05 1993-03-05 Current transducer particularly for an electronic electricity meter
PCT/EP1994/000649 WO1994020860A1 (en) 1993-03-05 1994-03-04 Current transformer, in particular a current transformer for an electronic electricity meter

Publications (2)

Publication Number Publication Date
FI954140A true FI954140A (en) 1995-09-04
FI954140A0 FI954140A0 (en) 1995-09-04

Family

ID=8212665

Family Applications (1)

Application Number Title Priority Date Filing Date
FI954140A FI954140A0 (en) 1993-03-05 1995-09-04 Electric current transducer, especially for electronic electricity meters

Country Status (10)

Country Link
EP (1) EP0618451B1 (en)
AT (1) ATE134449T1 (en)
AU (1) AU6425194A (en)
DE (1) DE59301685D1 (en)
DK (1) DK0618451T3 (en)
ES (1) ES2085667T3 (en)
FI (1) FI954140A0 (en)
GR (1) GR3019277T3 (en)
NO (1) NO953331L (en)
WO (1) WO1994020860A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19549181A1 (en) * 1995-12-30 1997-07-03 Bosch Gmbh Robert Appliance for measuring the current in conductor
EP0886147B1 (en) * 1997-05-21 2008-09-17 Landis+Gyr AG Device for obtaining a current-proportional magnetic induction at the position of a magnetic field sensor
FR2800167B1 (en) * 1999-10-25 2001-11-30 Schlumberger Ind Sa DEVICE FOR MEASURING AN ELECTRIC CURRENT AND ELECTRICITY METER COMPRISING SUCH A DEVICE
FR2803914B1 (en) * 2000-01-19 2002-05-17 Sagem INDUCTIVE SENSOR FOR AC MEASUREMENT
JP5820164B2 (en) * 2011-07-01 2015-11-24 東光東芝メーターシステムズ株式会社 Current detection device and watt-hour meter using the same
CN114200189A (en) * 2021-12-10 2022-03-18 宁波泰丰源电气有限公司 High-protection ammeter current transformer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE507820C (en) * 1930-09-20 Koch & Sterzel Akt Ges Bushing current transformer
FR2291591A1 (en) * 1974-02-25 1976-06-11 Metalimphy Magnetic circuit for differential transformer - has prismatic block of laminations matching winding core windows
US4591942A (en) * 1984-12-07 1986-05-27 General Electric Company Current sensing transformer assembly
CH673160A5 (en) * 1986-02-10 1990-02-15 Landis & Gyr Ag
EP0481104A1 (en) * 1990-10-15 1992-04-22 Siemens Aktiengesellschaft Transducer for electricity meter

Also Published As

Publication number Publication date
ES2085667T3 (en) 1996-06-01
DK0618451T3 (en) 1996-06-03
EP0618451B1 (en) 1996-02-21
DE59301685D1 (en) 1996-03-28
NO953331D0 (en) 1995-08-24
GR3019277T3 (en) 1996-06-30
ATE134449T1 (en) 1996-03-15
NO953331L (en) 1995-10-20
FI954140A0 (en) 1995-09-04
EP0618451A1 (en) 1994-10-05
WO1994020860A1 (en) 1994-09-15
AU6425194A (en) 1994-09-26

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