WO2014009084A1 - Agencement de composants d'un diviseur de tension adapté en fonction du champ électrique - Google Patents

Agencement de composants d'un diviseur de tension adapté en fonction du champ électrique Download PDF

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Publication number
WO2014009084A1
WO2014009084A1 PCT/EP2013/062086 EP2013062086W WO2014009084A1 WO 2014009084 A1 WO2014009084 A1 WO 2014009084A1 EP 2013062086 W EP2013062086 W EP 2013062086W WO 2014009084 A1 WO2014009084 A1 WO 2014009084A1
Authority
WO
WIPO (PCT)
Prior art keywords
components
circuit board
voltage
electric field
electrical component
Prior art date
Application number
PCT/EP2013/062086
Other languages
German (de)
English (en)
Inventor
Stefan Hain
Wojciech Olszewski
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2014009084A1 publication Critical patent/WO2014009084A1/fr

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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
    • G01R15/04—Voltage dividers

Definitions

  • the invention relates to an electrical component arrangement in which a plurality of electrical components is arranged in series on a support from a central conductor to a predetermined radial distance, wherein the series circuit is applied a predetermined electrical voltage, whereby at each of the plurality of components in each case a voltage drop occurs and whereby between the central conductor and the predetermined radial distance is given an inhomogeneous electric field.
  • Gas insulated (high voltage) switchgear (GIS - Gas Insulated Switchgear) are used in the substation and distribution of power companies, but also in medium voltage networks of industry, e.g. Mining, steelmaking or the paper industry. Also for use in special applications such as wind farms, offshore platforms and
  • Gas-insulated voltage dividers for use in GISs are e.g. Gas-insulated voltage divider of the company
  • Such a voltage divider can be seen in FIG.
  • a spatially correspondingly large voltage divider is constructed, so that substantially an electric field results, which is controlled by the voltage drop across the components.
  • a disadvantage of this large Tension dividers is that their size requires their own space in the GIS and that the electric field that is already present in the GIS is distorted relatively strongly.
  • the difficulty with a conventional device arrangement is that the electric field strength gradient in the vicinity of the conductor is very high, ie a high voltage drop occurs at the individual component.
  • voltage dividers must be made individually, the components are dimensioned so that they can withstand a high voltage drop, no matter where in the electric field they are placed. So it can not be used standard components. The previously required components must be made specifically for the respective voltage divider and are manufactured and offered by a few specialized companies and are quite expensive.
  • the electrical component arrangement according to the invention is advantageously used in a gas-insulated switchgear according to patent claim 10.
  • a multiplicity of electrical components are arranged in series on a support starting from a central conductor up to a predetermined radial distance, wherein a predetermined electrical voltage is applied to the series connection, whereby a respective voltage is applied to each of the plurality of components Voltage drop is formed and whereby between the central conductor and the predetermined radial distance is given an inhomogeneous electric field, wherein the components are formed or arranged on the support so that the potential difference, which results at each of the components in the inhomogeneous electric field, equal to Voltage drop is that occurs at this device according to the voltage division.
  • the component arrangement according to the invention By means of the component arrangement according to the invention, a placement of the components adapted to the field lines is possible, as a result of which the electrical field present in the GIS is not distorted as strongly as in a conventional component arrangement.
  • the arrangement according to the invention has the additional advantage that commercially available components which can be inexpensively obtained in large quantities can be used, which results in a further advantage, namely that no large separate space for the voltage divider in the GIS must be provided thereby. So far, commercial voltage divider for GISen, as mentioned above, must be made extra and require a relatively large amount of space.
  • the carrier is formed as an annular circuit board, in the middle of which the central conductor is arranged, and the components are arranged spirally thereon.
  • the spiral shape has the advantage that standard components can be used.
  • the potential difference that results at each of the devices in the inhomogeneous electric field is equal to the voltage drop across the device.
  • the electric field present in the GIS is not distorted as much as in a conventional device arrangement, and there are also the other advantages, as described above.
  • the distance between adjacent ones of the components in the radial direction is chosen so that it is smaller in adjacent components which are arranged closer to the central conductor, than in adjacent components which are arranged closer to the predetermined radial distance.
  • the components are oriented radially with respect to the electric field, or each of the components is arranged at a predetermined angle with respect to the electric field.
  • this arrangement may also be the
  • the support is a flexible circuit board and the components are disposed radially equidistant thereon, the circuit board being shaped such that the potential difference that results at each of the components in the inhomogeneous electric field is equal to the voltage drop, which arises on this component according to the voltage division.
  • the advantage here is that the circuit board can be bent by their flexibility, for example, so that they can be introduced into the electric field so that the components in turn accept a field line adapted arrangement.
  • each of the plurality of components is similar. This allows a cost-effective purchase in large quantities.
  • each of the components is an RC element.
  • This has the advantage that a use of an RC divider, in which a series and parallel connection of resistors and capacitors is necessary, is made possible.
  • the electrical component arrangement according to the invention is used in a gas-insulated switchgear.
  • FIG. 1 shows an illustration of a Trench voltage divider known from the prior art
  • FIG. 2 is an illustration of an embodiment of the invention in which the components are arranged spirally on an annular circuit board
  • FIG. 3 is a cross section of a portion of a GIS according to another embodiment of the invention, in which the components are radially equidistantly mounted on a flexible printed circuit board, which is installed according to the electric field lines in the electric field.
  • a major challenge is the construction of a voltage divider used in, for example, a gas-insulated (high-voltage) switchgear (GIS), which consists of several series-connected components, such as resistors and capacitors.
  • GIS gas-insulated (high-voltage) switchgear
  • this voltage divider is in conventional design in a strong, predetermined, even inhomogeneous electric field.
  • the electric field is specified, for example, by the conductors and the metal container of the GIS.
  • the voltage drop in the electric field outside the components is greater than that in the component, which is formed by the voltage division of the components.
  • the series connection is necessary because the individual components are not required Have dielectric strength for the entire potential difference.
  • an electrical component arrangement in which a plurality of electrical components is arranged in series on a carrier starting from a central conductor up to a predetermined radial distance, wherein a predetermined electrical voltage is applied to the series circuit.
  • a voltage drop occurs at each of the plurality of components, and an inhomogeneous electric field is applied between the central conductor and the predetermined radial distance.
  • the potential difference that results for each of the components in the inhomogeneous electric field is equal to the voltage drop that occurs at this component according to the voltage division.
  • annular printed circuit board 1A with an inner edge 4 and an outer edge 5 is shown.
  • a hole 2 can be seen through which a central conductor (not shown in FIG 2) can lead.
  • the central conductor leads, for example, high voltage.
  • a high voltage is generally referred to an electrical voltage which is greater than 1000V, ie greater than lkV.
  • the outer edge 5 of the annular circuit board 1A is at ground potential, for example.
  • a plurality of devices 3 are arranged in series on the annular circuit board 1A in a spiral shape.
  • one end of this component spiral starts at the central conductor, ie at the edge of the hole 2, and is spirally guided around the central conductor such that the other end of the component spiral is secured to the outer edge 5 of the annular conductor.
  • terplatte 1A, ie at a radial distance 6 from the conductor to the outer edge of the annular circuit board 1A ends.
  • the radial distance 6 is thus the distance from the central conductor to the outer edge 5 of the annular circuit board 1A.
  • Each of the spirally arranged components 3 has a predefined distance x1, x2... Xn to its neighboring component 3 in the radial direction. This distance x1, x2... Xn is selected so that it is smaller between adjacent components 3, which are arranged closer to the central conductor, than between adjacent components 3, which are closer to the outside
  • the radial distance 6 of the central conductor is so large. This means that the distance xl, x2... Xn between adjacent components 3 increases with the distance from the central conductor, that is to say xl> x2. "> Xn.
  • the arrangement of the devices at different distances has the background that the electric field strength gradient is greatest in the vicinity of the central conductor, i. this decreases, the farther the distance of the individual component 3 from the central conductor is. This in turn means that the closer it is to the central conductor, the greater the potential difference caused by the inhomogeneous field at a radially extending printed circuit board section.
  • the components 3 placed close to the central conductor must be arranged closer together than components 3 which have a greater radial distance from the central conductor, ie closer to the outer edge 5 of the annular circuit board 1A are arranged.
  • the arrangement of the components 3 on the annular circuit board 1A may be such that the components 3 are oriented radially with respect to the electric field.
  • the components 3 can also be connected at an angle to the electric field. be ordered, if this, for example, the design, so for example, the size of the components 3 requires. This may be the case if the components 3 are very large and the voltage drop along the component 3 could not be kept constant by a radial arrangement.
  • the individual components are arranged according to the field strength gradients.
  • a voltage drop is produced across this component 3 according to the voltage division over all components, and equal to the potential difference of the electrical component surrounding this component 3 Field is.
  • Voltage division generally involves the distribution of an electrical voltage through a series circuit from eg Resistances understood.
  • FIG. 3 shows a cross section of a section of a GIS according to a further embodiment of the component arrangement according to the invention.
  • a flexible printed circuit board 1B is shown, which is arranged within a container wall 8 of a GIS.
  • a plurality of components 3 are arranged, wherein the individual components 3 are arranged along the circuit board from the inside outwards equally spaced.
  • a conductor 7 carrying high voltage is disposed inside the container of the GIS, that is, between the container walls 8, so that the side of the flexible circuit board 1B on which no components 3 are mounted is toward the conductor.
  • the flexible printed circuit board 1B is bent in the direction of the container wall 8 of the GIS, to which the components 3 are arranged so that the components 3 are arranged according to the field strength distribution 9 of the inhomogeneous electric field, which is indicated in FIG. 3, in the interior of the GIS ,
  • the components 3, as well as in the previous embodiment shown in FIG. 2 are arranged such that the potential difference which results at each of the components 3 in the inhomogeneous electric field 9 is equal to the voltage drop occurring at this component 3 arises according to the voltage division.
  • An advantage of this arrangement is that the individual components 3 can be mounted radially equidistant on the printed circuit board 1B and the printed circuit board can then be bent in accordance with the gradient of the electric field, which facilitates mounting of the printed circuit board.
  • each of the devices 3 may also be formed as an RC element, or the capacitor additionally required for the RC divider may be placed next to the respective resistor, so that the required Parallel and series connection can be realized.
  • similar components 3 can be used for the series connection.
  • the arrangement of the components according to the embodiments of the present invention makes it possible to use commercially available and inexpensive in large quantities components, since the dimensioning of the components according to their placement in the electric field is such that they are matched to the resulting voltage drop.
  • the individual components are thus neither over nor under-dimensioned for the voltage drop occurring at the individual component or the potential difference of the electric field surrounding the individual component.
  • the components can either be arranged on the carrier, eg the printed circuit board, as shown for example in FIG.
  • the components are arranged equidistantly on a flexible printed circuit board 1B corresponding to the electric field is mounted inside the GIS, for example, by bending the circuit board, that again the potential difference around the components is as large as the voltage drop across the component.
  • the electrical component arrangement is advantageously installed in a gas-insulated switchgear.

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

Abstract

Dans l'agencement de composants électriques selon l'invention, une pluralité de composants électriques est disposée en série sur un support jusqu'à une distance radiale prédéfinie à partir d'un conducteur central. Une tension électrique prédéterminée est appliquée au circuit en série de telle façon qu'une chute de tension se produit aux bornes de chaque composant de ladite pluralité de composants et qu'un champ électrique inhomogène est généré entre le conducteur central et la distance radiale prédéfinie. Les composants sont formés ou disposés sur le support de telle façon que la différence de potentiel dans chacun des composants présents dans le champ électrique inhomogène est égale à la chute de tension aux bornes de ce composant suivant la division de tension. Le support est avantageusement un circuit imprimé de forme annulaire sur lequel les composants sont disposés en spirale de l'intérieur vers l'extérieur, ou bien le circuit imprimé est un circuit imprimé souple sur lequel les composants sont disposés à égale distance dans le sens radial et le circuit imprimé est courbé en correspondance avec le champ électrique.
PCT/EP2013/062086 2012-07-10 2013-06-12 Agencement de composants d'un diviseur de tension adapté en fonction du champ électrique WO2014009084A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012211989.2 2012-07-10
DE201210211989 DE102012211989A1 (de) 2012-07-10 2012-07-10 E-Feld angepasste Anordnung von Bauteilen eines Spannungsteilers

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WO2014009084A1 true WO2014009084A1 (fr) 2014-01-16

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PCT/EP2013/062086 WO2014009084A1 (fr) 2012-07-10 2013-06-12 Agencement de composants d'un diviseur de tension adapté en fonction du champ électrique

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DE (1) DE102012211989A1 (fr)
WO (1) WO2014009084A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3811470A4 (fr) * 2018-06-22 2022-03-16 3M Innovative Properties Company Capteurs à éléments d'impédance sur substrat pour connecteurs haute tension séparables

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999014604A1 (fr) * 1997-09-16 1999-03-25 Trench Switzerland Ag Diviseur de tension
DE10024335A1 (de) * 1999-05-17 2000-11-23 Abb Transmit Oy Vaasa Ohmscher Spannungsfühler

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2409595B2 (de) * 1974-02-25 1978-06-22 Siemens Ag, 1000 Berlin Und 8000 Muenchen Spannungswandler für eine vollisolierte, metallgekapselte Hochspannungsschaltanlage
DE4211944A1 (de) * 1992-04-09 1993-10-14 Philips Patentverwaltung Hochspannungseinheit mit einer Meßteiler-Widerstandsanordnung
DE4412784C2 (de) * 1994-04-18 1997-04-03 Abb Patent Gmbh Strom- und Spannungssensor für ein Hochspannungsschaltfeld
FR2858887B1 (fr) * 2003-08-14 2005-09-23 Ge Med Sys Global Tech Co Llc Dispositif de production d'une haute tension comportant une resistance interne de mesure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999014604A1 (fr) * 1997-09-16 1999-03-25 Trench Switzerland Ag Diviseur de tension
DE10024335A1 (de) * 1999-05-17 2000-11-23 Abb Transmit Oy Vaasa Ohmscher Spannungsfühler

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