EP1782081A1 - Dispositif pour mesurer le courant electrique, la tension et la temperature au niveau d'un conducteur electrique constitue d'un materiau rigide - Google Patents

Dispositif pour mesurer le courant electrique, la tension et la temperature au niveau d'un conducteur electrique constitue d'un materiau rigide

Info

Publication number
EP1782081A1
EP1782081A1 EP05778292A EP05778292A EP1782081A1 EP 1782081 A1 EP1782081 A1 EP 1782081A1 EP 05778292 A EP05778292 A EP 05778292A EP 05778292 A EP05778292 A EP 05778292A EP 1782081 A1 EP1782081 A1 EP 1782081A1
Authority
EP
European Patent Office
Prior art keywords
conductor
measuring
voltage
sections
current
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.)
Ceased
Application number
EP05778292A
Other languages
German (de)
English (en)
Inventor
Klaus-Georg MÜLLER
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.)
ABB AG Germany
Original Assignee
ABB Patent GmbH
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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP1782081A1 publication Critical patent/EP1782081A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G01R15/142—Arrangements for simultaneous measurements of several parameters employing techniques covered by groups G01R15/14 - G01R15/26
    • 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
    • G01R15/146—Measuring arrangements for current not covered by other subgroups of G01R15/14, e.g. using current dividers, shunts, or measuring a voltage drop
    • 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
    • G01R15/22—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-emitting devices, e.g. LED, optocouplers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/32—Compensating for temperature change

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • busbars In a low-voltage switchgear busbars run horizontally for power supply, the busbars are assigned vertical or vertical Verteiler ⁇ rails.
  • the individual control, switching and control devices are located in slots, wherein on the inserts contact elements are provided, which include the distribution rails in the mouth.
  • contact elements In case of improper maintenance or from others. There is a risk that even small deviations in the contact forces lead to a high temperature increase at these contact points due to high current densities. The consequences can be cable fires and the destruction of the plant. Due to the high metrological effort, the temperature of such busbar contacts in low-voltage switchgear not memorin ⁇ moderately monitored.
  • the object of the invention is to provide a device with which the electrical current, the voltage and the temperature of the contact pieces can be measured in a simple manner.
  • the conductor is formed from two conductor sections between which an electrical resistance element made of a material having a higher resistance than the conductor is provided, wherein a flattening with a depression is arranged in the region of the resistance element a Meßschaltan Aunt is placed Bretagne ⁇ through which flows a part of the current flowing through the conductor, and that the measuring arrangement is disposed near a connection contact piece with which the conductor can be brought into an electrically conductive connection with another conductor, so that at the contact point resulting heat is measured.
  • This circuit can be used for current, voltage and temperature measurement in the conductor section, which is directly connected to or carries the aforementioned mouse contact piece, so that heat generated there can be measured directly by the circuit.
  • a conductor either a ribbon conductor can be used, which has two sections, between which the electrical resistance element is located;
  • a round wire conductor which is provided with a flat surface, in the region of which the depression and thus also the resistance element are located. The current flows through the resistor element and parallel to it via the measuring circuit.
  • the resistive element may be made of manganin, which has a 20 times increased resistance to copper.
  • Fig. 1 is a perspective view of a conductor piece
  • Fig. 3 is a perspective view of an angled contact pieces
  • Fig. 4 shows a circuit arrangement for the measuring device.
  • FIG. 1 shows a perspective view of a conductor 10, at one end of which has a crimp connection for a connecting conductor, which is connected to the conductor 10 by means of a screw connection 12.
  • the conductor 10 is composed of a first conductor section 13, to which the crimp connection 11 is fastened, and a second conductor section 14, to which a contact piece 15 with two contact tongues 16 and 17 is connected by means of a rivet connection 18.
  • This contact piece 15 reaches ge with a vertically extending conductor 19 in connection by the conductor 10 is pushed with the contact piece 15 on the vertically extending ribbon conductor 19, so that the ribbon conductor 19 in the space 20 between the Zun- gene 16 and 17 is located.
  • the insertion direction is shown by the arrow P.
  • a resistance element 23 is provided, which is soldered to the contact points 24 and 25 with the two conductor sections 13 and 14.
  • the thickness of the resistance element 23 is smaller than the thickness of the conductor sections 13 and 14, so that a depression 26 is formed.
  • the resistive element may be, for example, manganin, which has a resistance 20 times higher than the resistance of the two conductor sections 13 and 14 made of copper.
  • a printed circuit board 27 is soldered onto which a measuring circuit 28 is fixed; the circuit board 27 together with the measuring circuit 28 forms a measuring arrangement for measuring the current and in particular the temperature, which measuring arrangement, as mentioned above, is known per se. Due to the thickness d2 of the resistive element 23, which is reduced in relation to the thickness di of the two conductor sections 13 and 14, the current flows both via the resistive element and via the measuring arrangement, although this is not shown here.
  • the board 27 is soldered on the sections 13 and 14.
  • the measuring device or measuring arrangement which in its entirety is numbered 29, is at mains potential, i. at a potential up to 1000 V.
  • a conductor 30 is shown, which is composed of two conductor sections 31 and 32 1966 ⁇ , between which in the same manner as in the embodiment of FIG. 1 is a resistance element which is similar to the resistive element 23.
  • a depression is provided on which a printed circuit board 33 is soldered, in the same way as on the sections 13 and 14.
  • Fig. 2 it is shown that on the circuit board 27 opposite side of the sections 13 and 14, the contact piece 15 is attached.
  • a contact piece 36 is riveted to the conductor section 31 on the side opposite to the circuit board 33, which is not flat, just like the contact piece 15, but bent in a Z-shape.
  • the one leg 37 is located on the conductor portion 31 and the other, parallel thereto legs 38 carries contact prongs 39 and 40 which are mit ⁇ means of a contact pressure spring 51 connected to each other, which is formed as a U-shaped Kunststoff ⁇ compression spring, wherein a first U-shape 42 and a U-shape 43 running parallel thereto are provided, which are connected to one another by means of connecting elements 44 and 45, wherein the two U-shapes 42 and 43 are inserted over the contact piece, wherein the spring force of the leg pairs 42, 43 are applied to each other via the connecting portions 44, 45 on the contact tongues 39 and 40.
  • Such a contact arrangement is also known per se.
  • FIG. 4 shows a circuit arrangement with a number of phases corresponding to the number of printed circuit boards 50, 51 and 52, on each of which a circuit 28 and 34 corresponding Asic circuit 53, 54 and 55 are applied, which with ei ⁇ are connected to the first microprocessor 56, 57 and 58, in which the signals of the circuit 53 to 55 are processed in a first step.
  • the output signals of the microprocessors 56, 57 and 58 are fed via optocouplers 59, 60, 61 to a microprocessor 62, in which the signals of the microprocessors 56 to 58 are further processed.
  • control devices 63 for a Heidelberg ⁇ device control and for a display device 64 at.
  • the power supply via a supply line 65, which is supplied to a line 66 for a control voltage which ensures and controls the energy supply via three isolated power supply devices 67, 68 and 69.
  • Fig. 1 shows a conductor section 10, which has at its one end a crimp receptacle 11 for a connection conductor.
  • This crimping terminal 11 connects to a first conductor section 12.
  • a resistive resistor element 14 ange ⁇ closed, for example, welded or soldered, at the free end edge 15, a contact piece 16 connects, which ends in a fork shape 17 with two forks 18 and 19 , Not shown are spring elements that press the two forks 18 and 19 against each other.
  • the opening 20 between the two forks 19 and 18 is inserted over a vertically extending rail 21.
  • the entire conductor arrangement 10 serves to supply switching, control and regulating devices located in the interior of a switchgear with electricity.
  • the distribution rails 21, which extend vertically in the switchgear are connected to horizontally extending busbars, which are not shown here.
  • the thickness Di of the section 12 or 16 is greater than the thickness D 2 of the resistance element, so that a recess 22 forms in the region of the resistance element.
  • This recess 22 is covered by an electrical circuit 23, wherein the circuit 23 comprises a printed circuit board 24, are applied to the measuring elements 25 for elektri ⁇ 's current, voltage and temperature.
  • measuring element 23 On the measuring element 23 connecting conductors are provided, which are connected to a microprocessor, in which the signals coming from the measuring device 23 can be further processed.
  • the measuring device is at mains potential, d. H. at a potential up to 1000V.
  • Digital signals are present at the output of the measuring device 23, via potential separation, e.g. Optocouplers are supplied to the microprocessor.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

L'invention concerne un dispositif servant à mesurer le courant électrique, la tension et la température dans un conducteur électrique constitué d'un matériau rigide, de préférence dans une installation électrique basse tension. Selon l'invention, ledit conducteur (10) est formé de deux sections conductrices (13, 14) entre lesquelles est placé un élément de résistance (23) électrique constitué d'un matériau présentant une résistivité supérieure à celle du matériau des sections conductrices. Au niveau de cet élément de résistance (23) se trouve un méplat présentant un renfoncement (26) au-dessus duquel est placé un système de mesure (29) à la manière d'un pont, une partie du courant parcourant le conducteur (10) circulant à travers ce système de mesure (29). Ledit système de mesure (29) est disposé à proximité d'une pièce de contact de liaison (15) au moyen de laquelle le conducteur (10) peut être relié à un autre conducteur (19) de façon électriquement conductrice de sorte que la chaleur générée au niveau du point de contact soit mesurée.
EP05778292A 2004-08-21 2005-08-19 Dispositif pour mesurer le courant electrique, la tension et la temperature au niveau d'un conducteur electrique constitue d'un materiau rigide Ceased EP1782081A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410040575 DE102004040575A1 (de) 2004-08-21 2004-08-21 Einrichtung zum Messen von elektrischem Strom, Spannung und Temperatur an einem aus starrem Material bestehenden elektrischen Leiter
PCT/EP2005/009013 WO2006021389A1 (fr) 2004-08-21 2005-08-19 Dispositif pour mesurer le courant electrique, la tension et la temperature au niveau d'un conducteur electrique constitue d'un materiau rigide

Publications (1)

Publication Number Publication Date
EP1782081A1 true EP1782081A1 (fr) 2007-05-09

Family

ID=35335664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05778292A Ceased EP1782081A1 (fr) 2004-08-21 2005-08-19 Dispositif pour mesurer le courant electrique, la tension et la temperature au niveau d'un conducteur electrique constitue d'un materiau rigide

Country Status (7)

Country Link
US (1) US8947097B2 (fr)
EP (1) EP1782081A1 (fr)
CN (1) CN101006349A (fr)
DE (1) DE102004040575A1 (fr)
NO (1) NO20071166L (fr)
WO (1) WO2006021389A1 (fr)
ZA (1) ZA200701134B (fr)

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DE102007033182B4 (de) * 2007-07-13 2012-11-29 Auto-Kabel Management Gmbh Kraftfahrzeugbatteriesensorelement sowie Verfahren zur Herstellung eines Kraftfahrzeugbatteriesensorelements
US9523720B2 (en) 2013-03-15 2016-12-20 Infineon Technologies Ag Multiple current sensor device, a multiple current shunt device and a method for providing a sensor signal
JP2014132270A (ja) * 2014-02-19 2014-07-17 Mitsubishi Electric Corp 抵抗兼用導体
DE102016010012B4 (de) * 2016-08-17 2018-06-21 Isabellenhütte Heusler Gmbh & Co. Kg Messanordnung zur Messung eines elektrischen Stroms im Hochstrombereich
US10132834B2 (en) * 2016-11-04 2018-11-20 Peaceful Thriving Enterprise Co., Ltd. Probe
WO2020048584A1 (fr) * 2018-09-04 2020-03-12 Isabellenhütte Heusler Gmbh & Co. Kg Résistance de mesure du courant et procédé de fabrication associé
DE102019108541A1 (de) * 2019-04-02 2020-10-08 Eberspächer Controls Landau Gmbh & Co. Kg Strommessbaugruppe

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DE3324224A1 (de) * 1983-06-09 1984-12-13 LGZ Landis & Gyr Zug AG, Zug Anordnung zum messen eines stromes
DE3414907A1 (de) * 1984-04-19 1985-10-31 Zünderwerk Rudolf Brüggemann, 5300 Bonn Kabel- oder leiterverbindungsdose, insbesondere fuer kraftfahrzeuge
US20030057770A1 (en) * 1999-12-18 2003-03-27 Andreas Heim Battery sensor device
DE10332410B3 (de) * 2003-07-16 2004-05-27 Auto Kabel Managementgesellschaft Mbh Kraftfahrzeugbordnetzsensorvorrichtung und Verfahren zur Herstellung einer Sensorvorrichtung
FR2847728A3 (fr) * 2002-11-25 2004-05-28 Amadeo Marti Carbonell Sa Dispositif pour fixer des cables sur des pinces

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US3245021A (en) * 1962-12-27 1966-04-05 Gen Electric Shunt for electrical instruments
US3372334A (en) 1964-03-25 1968-03-05 Udylite Corp Calibrated bypass conductor current measuring system
US4182982A (en) 1978-07-11 1980-01-08 Westinghouse Electric Corp. Current sensing transducer for power line current measurements
US4524426A (en) * 1983-04-19 1985-06-18 Pitney Bowes Inc. Electronic postage meter controllable by mailing machine
US4973937A (en) * 1989-03-13 1990-11-27 Barnet Weinstein Electrical shunt apparatus
DE19510662C2 (de) * 1995-03-23 1998-08-06 Siemens Ag Aktives optisches Strommeßsystem
FR2733108B1 (fr) * 1995-04-13 1997-05-16 Thomson Multimedia Sa Dispositif de communication
US6028426A (en) * 1997-08-19 2000-02-22 Statpower Technologies Partnership Temperature compensated current measurement device
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Publication number Priority date Publication date Assignee Title
DE3324224A1 (de) * 1983-06-09 1984-12-13 LGZ Landis & Gyr Zug AG, Zug Anordnung zum messen eines stromes
DE3414907A1 (de) * 1984-04-19 1985-10-31 Zünderwerk Rudolf Brüggemann, 5300 Bonn Kabel- oder leiterverbindungsdose, insbesondere fuer kraftfahrzeuge
US20030057770A1 (en) * 1999-12-18 2003-03-27 Andreas Heim Battery sensor device
FR2847728A3 (fr) * 2002-11-25 2004-05-28 Amadeo Marti Carbonell Sa Dispositif pour fixer des cables sur des pinces
DE10332410B3 (de) * 2003-07-16 2004-05-27 Auto Kabel Managementgesellschaft Mbh Kraftfahrzeugbordnetzsensorvorrichtung und Verfahren zur Herstellung einer Sensorvorrichtung

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Title
See also references of WO2006021389A1 *

Also Published As

Publication number Publication date
US20080246462A1 (en) 2008-10-09
WO2006021389A1 (fr) 2006-03-02
DE102004040575A1 (de) 2006-02-23
US8947097B2 (en) 2015-02-03
CN101006349A (zh) 2007-07-25
ZA200701134B (en) 2008-07-30
NO20071166L (no) 2007-03-01

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