WO2024068196A1 - Agencement d'éléments rc pour moyenne tension, pour commuter de faibles courants inductifs au moyen d'une technologie de commutation sous vide à haute tension - Google Patents

Agencement d'éléments rc pour moyenne tension, pour commuter de faibles courants inductifs au moyen d'une technologie de commutation sous vide à haute tension Download PDF

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Publication number
WO2024068196A1
WO2024068196A1 PCT/EP2023/074305 EP2023074305W WO2024068196A1 WO 2024068196 A1 WO2024068196 A1 WO 2024068196A1 EP 2023074305 W EP2023074305 W EP 2023074305W WO 2024068196 A1 WO2024068196 A1 WO 2024068196A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
elements
circuit arrangement
arrangement according
housing
Prior art date
Application number
PCT/EP2023/074305
Other languages
German (de)
English (en)
Inventor
Stefan Giere
Thomas Heinz
Jan WEISKER
Rene Schaefer
Original Assignee
Siemens Energy Global GmbH & Co. KG
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 Energy Global GmbH & Co. KG filed Critical Siemens Energy Global GmbH & Co. KG
Publication of WO2024068196A1 publication Critical patent/WO2024068196A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/005—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection avoiding undesired transient conditions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C13/00—Resistors not provided for elsewhere
    • H01C13/02—Structural combinations of resistors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/044—Physical layout, materials not provided for elsewhere

Definitions

  • the invention relates to an arrangement of RC elements designed for medium voltage for realizing an RC filter circuit solution for switching small inductive currents using high-voltage vacuum switching technology.
  • SF6 circuit breakers are predominantly used in high-voltage networks. In these applications the gas switches are not operated without additional protective measures. These measures serve to reduce the overvoltages that occur during the switching process.
  • the invention is based on the problem of providing a solution as to how an RC filter circuit can be used in high-voltage electrical energy transmission, in which the high voltage (HV) is greater than or equal to 72.5 kilovolts. Furthermore, the invention is aimed at specifying variants for the arrangement of the RC elements for efficient insertion into the limited installation space in a substation architecture.
  • HV high voltage
  • circuit arrangement of a plurality of RC elements comprising the features of claim 1.
  • Transferring this technology to high-voltage applications also opens up choke switching applications for high-voltage vacuum switching devices.
  • the arrangement of available, discrete medium-voltage free-air RC elements according to the invention represents an efficient method of also being able to serve high-voltage applications.
  • the efficient arrangement of these RC elements can be particularly suitable for integration into the corresponding substation architecture. Here, available installation space is limited.
  • the existing medium-voltage RC solutions essentially cover the voltage range up to 36 kV.
  • several of these elements are interconnected according to the invention.
  • the R and C elements may be housed together in a metallic housing G .
  • This housing has an outdoor fixed bushing D .
  • the electrical series connection The use of such discrete components makes use at higher voltage levels possible.
  • an RC element is attached by a support insulator or several support insulators S I . This serves on the one hand for mechanical strength and on the other hand for maintaining the distance for voltage insulation.
  • Fig. 1 shows an arrangement according to the invention of three individual RC elements with bushings aligned to the same side
  • Fig. 3 shows an arrangement according to the invention of three individual RC elements with bushings aligned in a row and
  • Fig. 4 shows an arrangement according to the invention of three individual RC elements in exactly two planes.
  • Fig. 1 shows an arrangement of the individual RC elements according to the invention.
  • Three RC elements RC each of which has a series connection of a resistor and a capacitor, are arranged with their main surfaces parallel to one another.
  • the RC elements are each designed for a medium voltage of up to 36 kV.
  • the RC elements each have two electrical ones Connections on , a housing connection GA and a feedthrough connection DA.
  • a feedthrough connection DA is arranged at the end of the feedthrough D facing away from the housing G.
  • the bushing D itself may be arranged on the housing G outside the center of its fastening surface.
  • the feedthrough connections DA of several RC elements face one side.
  • the feedthrough connections DA of adjacent RC elements can be offset from one another, in particular aligned to the right or left, for improved interconnection of the RC elements.
  • the RC elements can be stacked on top of one another or arranged horizontally next to one another. This allows adaptation to the respective space conditions in a substation.
  • the RC elements can be attached by support insulators (not shown in the figure). These serve on the one hand to provide mechanical strength and on the other to maintain the distance to the voltage insulation.
  • Figure 2 shows a second possible arrangement of the individual RC elements, in which the bushings D of the discrete RC elements are arranged alternately at the front and rear. To improve the connection of the various RC elements, the bushings are arranged alternately on the left and right.
  • the RC elements can be stacked on top of one another or arranged horizontally next to one another. This allows adaptation to the respective space conditions in a substation.
  • the RC elements can be attached by support insulators (not shown in the figure). These serve on the one hand to provide mechanical strength and on the other to maintain the distance to the voltage insulation.
  • Figure 3 shows an arrangement in which the RC elements are stacked vertically one on top of the other, but are also arranged with their bushings D in a row. There are two options here:
  • the bushings D are arranged alternately to the left and right.
  • the housing G of the lowest RC element is directly connected to a base that carries earth potential. This arrangement requires only two support insulators SI for three RC elements.
  • Figure 4 shows a particularly compact arrangement of the RC elements.
  • the elements are next to each other on exactly two levels. They are arranged upright and the connection is from an element on the left to an element on the right.
  • the bushings could always be arranged on one side (as shown in the figure) or alternately (front/back).
  • the housing G of the lowest RC element is directly connected to a ground surface that carries ground potential.
  • the series connection of the RC elements can be further developed in such a way that a high-value resistor with the same resistance value is connected in parallel to each RC element. This ensures that the high voltage HV is evenly distributed among the individual RC elements.
  • An RC element can be a commercially available MV APP type from TDK Electronics AG.
  • High voltage in the sense of the invention is understood to mean a voltage of 72.5 kV (kilovolts) and higher, including direct current, alternating current and, if three-pole, also three-phase current.
  • the present invention has been explained in detail for illustrative purposes using specific embodiments. Elements of the individual embodiments can also be combined with one another. The invention should therefore not be restricted to individual embodiments, but should only be restricted by the appended claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

L'invention concerne un agencement de circuit d'éléments RC pour moyenne tension, pour la mise en oeuvre d'une solution de circuit de filtre RC pour commuter de faibles courants inductifs au moyen d'une technologie de commutation sous vide à haute tension dans la plage de haute tension > = 72,5 kV. D'autres modes de réalisation avantageux concernent des agencements spécifiques pour l'espace d'installation limité disponible dans une sous-station.
PCT/EP2023/074305 2022-09-27 2023-09-05 Agencement d'éléments rc pour moyenne tension, pour commuter de faibles courants inductifs au moyen d'une technologie de commutation sous vide à haute tension WO2024068196A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022210201.0A DE102022210201A1 (de) 2022-09-27 2022-09-27 Anordnung von für Mittelspannung ausgelegten RC-Elementen für das Schalten von kleinen induktiven Strömen mittels Vakuumschalttechnik auf Hochspannungsebene
DE102022210201.0 2022-09-27

Publications (1)

Publication Number Publication Date
WO2024068196A1 true WO2024068196A1 (fr) 2024-04-04

Family

ID=87934073

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/074305 WO2024068196A1 (fr) 2022-09-27 2023-09-05 Agencement d'éléments rc pour moyenne tension, pour commuter de faibles courants inductifs au moyen d'une technologie de commutation sous vide à haute tension

Country Status (2)

Country Link
DE (1) DE102022210201A1 (fr)
WO (1) WO2024068196A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220200245A1 (en) * 2020-12-18 2022-06-23 Hubbell Incorporated Spark gap assembly for overvoltage protection and surge arrester

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220200245A1 (en) * 2020-12-18 2022-06-23 Hubbell Incorporated Spark gap assembly for overvoltage protection and surge arrester

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TRUNK KAI ET AL: "Small inductive current switching with high-voltage vacuum circuit breakers", 2020 29TH INTERNATIONAL SYMPOSIUM ON DISCHARGES AND ELECTRICAL INSULATION IN VACUUM (ISDEIV), IEEE, 26 September 2021 (2021-09-26), pages 331 - 334, XP034011189, DOI: 10.1109/ISDEIV46977.2021.9587197 *

Also Published As

Publication number Publication date
DE102022210201A1 (de) 2024-03-28

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