DK0482425T3 - Apparatus for measuring current, preferably current and voltage, by conductors of a single- or multi-phase system - Google Patents

Apparatus for measuring current, preferably current and voltage, by conductors of a single- or multi-phase system

Info

Publication number
DK0482425T3
DK0482425T3 DK91117196.5T DK91117196T DK0482425T3 DK 0482425 T3 DK0482425 T3 DK 0482425T3 DK 91117196 T DK91117196 T DK 91117196T DK 0482425 T3 DK0482425 T3 DK 0482425T3
Authority
DK
Denmark
Prior art keywords
section
device housing
current
conductors
voltage
Prior art date
Application number
DK91117196.5T
Other languages
Danish (da)
Inventor
Werner Schaechterle
Siegfried Dipl-Ing Kuhn
Original Assignee
Pfisterer Elektrotech Karl
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 Pfisterer Elektrotech Karl filed Critical Pfisterer Elektrotech Karl
Application granted granted Critical
Publication of DK0482425T3 publication Critical patent/DK0482425T3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
    • G01R1/22—Tong testers acting as secondary windings of current transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Transformers For Measuring Instruments (AREA)
  • General Induction Heating (AREA)

Abstract

In a device for measuring current, preferably current and voltage, on conductors of a single or multiphase system, especially conductors of low-voltage power supply installations, having an air-cored coil (123), which is located on a part of its length in a device housing (101), as a current sensor, the air-cored coil (123) has a first section (123a), which projects from the device housing (101), has a non-changing shape, similar to a hook that is open towards the device housing (1; 101), and has a second section (123d), which likewise has a non-changing shape and is guided such that it can move in a guide of the device housing (101) between a position in which its free end is connected to that of the first section (123a) and in which it complements the first section (123a) to form a U-like bracket having limbs which are connected to the device housing (101), and a position in which the hook formed by the first section (123a) is open. A section (123c) which is free of ferromagnetic material, is connected on the one hand to the first section (123a) of the air-cored coil (123) and on the other hand to the second section (123d) of the latter, is provided inside the device housing (101). <IMAGE>
DK91117196.5T 1990-10-20 1991-10-09 Apparatus for measuring current, preferably current and voltage, by conductors of a single- or multi-phase system DK0482425T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9014565U DE9014565U1 (en) 1990-10-20 1990-10-20 Device for measuring current and voltage on conductors of a single or multi-phase system

Publications (1)

Publication Number Publication Date
DK0482425T3 true DK0482425T3 (en) 1996-01-15

Family

ID=6858583

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91117196.5T DK0482425T3 (en) 1990-10-20 1991-10-09 Apparatus for measuring current, preferably current and voltage, by conductors of a single- or multi-phase system

Country Status (6)

Country Link
EP (1) EP0482425B1 (en)
AT (1) ATE127930T1 (en)
DE (2) DE9014565U1 (en)
DK (1) DK0482425T3 (en)
ES (1) ES2078410T3 (en)
GR (1) GR3017501T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0607465A1 (en) * 1992-09-11 1994-07-27 Societe Marechaux Dubost Instruments S.A. Clip-on current probe with improved operating means
FR2717582B1 (en) * 1994-03-21 1996-06-14 Electricite De France Device for measuring a voltage drop on a live conductor.
FR2973881B1 (en) 2011-04-11 2013-11-08 Schneider Electric Ind Sas DEVICE AND ASSEMBLY FOR MEASURING AN ELECTRICAL CURRENT

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482163A (en) * 1967-05-24 1969-12-02 Tektronix Inc Magnetic signal measuring device including degaussing means
DE1905468A1 (en) * 1969-01-31 1970-09-10 Licentia Gmbh Clamp meter
FR2044648A1 (en) * 1969-05-12 1971-02-26 Arnoux Andre
FR2170303A5 (en) * 1971-12-07 1973-09-14 Marechaux Dubost & Cie
DE2249278A1 (en) * 1972-10-07 1974-04-18 Heinrich Dipl Ing List PROBE FOR DC CLAMP FEEDER
FR2538556B1 (en) * 1982-12-22 1985-06-28 Universal Technic ELECTRIC CURRENT MEASURING CLIP WITH MAGNETIC CIRCUIT OPENING BY LINEAR MOTION
FR2538555B1 (en) * 1982-12-22 1985-08-16 Universal Technic ELECTRIC CURRENT MEASURING CLIP WITH MAGNETIC CIRCUIT WITH PIVOTING BRANCH
US4806855A (en) * 1984-06-22 1989-02-21 Davis Murray W System for rating electric power transmission lines and equipment
FR2599848B1 (en) * 1986-06-10 1988-11-25 Universal Technic CURRENT MEASURING DEVICE, AND AMPERMETRIC CLAMP COMPRISING SAME

Also Published As

Publication number Publication date
GR3017501T3 (en) 1995-12-31
ATE127930T1 (en) 1995-09-15
EP0482425B1 (en) 1995-09-13
EP0482425A1 (en) 1992-04-29
DE59106469D1 (en) 1995-10-19
ES2078410T3 (en) 1995-12-16
DE9014565U1 (en) 1991-02-07

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