EP1977435A1 - Commutateur électrique avec commande de potential - Google Patents

Commutateur électrique avec commande de potential

Info

Publication number
EP1977435A1
EP1977435A1 EP07703610A EP07703610A EP1977435A1 EP 1977435 A1 EP1977435 A1 EP 1977435A1 EP 07703610 A EP07703610 A EP 07703610A EP 07703610 A EP07703610 A EP 07703610A EP 1977435 A1 EP1977435 A1 EP 1977435A1
Authority
EP
European Patent Office
Prior art keywords
electrical
switching device
interrupter
electrical switching
interrupter unit
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.)
Withdrawn
Application number
EP07703610A
Other languages
German (de)
English (en)
Inventor
Heiko Jahn
Christian Wallner
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.)
Siemens AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Publication of EP1977435A1 publication Critical patent/EP1977435A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
    • H01H2033/146—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc using capacitors, e.g. for the voltage division over the different switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/008—Pedestal mounted switch gear combinations

Definitions

  • the invention relates to an electrical Heidelberggerat, umfas ⁇ send at least one interrupter unit for interrupting an existing electrical connection, wherein the interrupter unit has an electrical capacitance with respect to the electrical ground.
  • the invention relates to the use of the inventive dungsgeEffgerats for DC or AC networks.
  • Electrical switching devices are essential components of an electrical supply network. Electrical switching devices in the context of the present invention are switching devices for high voltage applications with more than 1 kV voltage.
  • a plurality of interrupter units are activated one after the other due to the high switched voltages in an electrical switching device. assigns.
  • uneven voltage distributions arise between the individual interrupter units and between the interrupter units against the electrical earth, which can result in part in the destruction of the voltage-loaded interrupter unit and thus of the electrical switching device.
  • control capacitors are connected in parallel with the electrical switch point of each interrupter unit, which serve to form an almost uniformly distributed voltage across the electrical switching device.
  • the individual interrupter units of the electrical switching device are subjected to almost equal stress in terms of voltage.
  • These control capacitors lead to an almost complete galvanic isolation of the individual breaker units in the switched-off state with an applied AC voltage and are therefore used as standard in high-voltage circuit breakers.
  • control capacitors in electrical Weggeraten represents a significant cost factor.
  • the additional control capacitors within the interrupter units generate mechanical loads that can lead to the destruction of the electrical Weggerats especially when strong vibrations occur as in a quake or a storm.
  • harmful resonances of the voltage amplitudes within the electrical Weggerats or even within the entire electrical supply network arise.
  • the document DE 199 58 646 C2 discloses a hybrid power switch with a vacuum switching chamber designed as a selector chamber with a conductive coating. A second switching chamber provided contains no conductive coating.
  • the working range of the electrical resistance of the hybrid power switch generated by the conductive coating is less than 500 k ⁇ .
  • Object of the present invention is therefore to avoid the above-mentioned disadvantages in the prior art and to provide an electrical switching device at your disposal, which is inexpensive to manufacture.
  • Switching device is switched. Despite the use of just no control capacitor and an associated electrical capacitance parallel to the electrical switch point within the interrupter unit, a voltage equal distribution over the electrical switching device is achieved.
  • the electricalmaschineat has at least two interrupter units, in each case in parallel with each electrical formwork ters adjusting a Resistive and / or inductively-acting electrical ⁇ ULTRASONIC component is connected in parallel.
  • each electrical formwork ters adjusting a Resistive and / or inductively-acting electrical ⁇ ULTRASONIC component is connected in parallel.
  • Resistive and / or inductively-acting electrical ⁇ specific component as a combination of a resistor and an inductively-acting electrical component together be switched and used parallel to the electrical switch point for voltage division.
  • the aforementioned examples of these disclosed non-capacitive electrical components are not restrictive and therefore also include surge arresters.
  • the interrupter unit is a switching chamber with a switch point, wherein the Sehaltkarmmer has a weakly conductive coating.
  • This coating acts as an electrical resistance, which is arranged parallel to the arranged inside the switching chamber electrical switch point.
  • the conductive coating is attached to the inner walls of the switching chamber.
  • the conductive coating contains conductive paints, conductive plastics, such as: B. filled with Leitfahtechniksruß plastics or intrinsically conductive plastics, such. B. doped polyacetylene or Polypyrrpol.
  • the conductive coating may contain conductive glazes, such as. B. Glazes with SnO / Sb x O y additives.
  • the conductive coating is advantageously applied from the inside to the inner walls of the switching chamber, in particular brushed and / or sprayed on and / or applied by a dipping process.
  • an insulating duster is used for holding at least one interrupter unit, wherein the duster is also coated from the inside with a conductive coating.
  • the adjacent breaker units may occupy any angle with each other. The resulting loss of heat through the
  • the resistance value of the resistor R s connected in parallel with the electrical switch point should be selected such that the resistance value of the resistively and / or inductively acting electrical component connected in parallel with the electrical switch point has the following formula for an electrical switching device having at least one first and one adjacent second interrupter unit is selected at AC voltage so that the quotient of the voltage U applied to the first interrupter unit based on the voltage applied to the first and second interrupter units total voltage U GES approximately gives the value 0.5:
  • the parameter C ⁇ stands for the electrical capacitance of the first interrupter unit when the switch point is open and C E stands for the electrical capacitance of the first and second interrupter unit with respect to the electrical ground.
  • the resistances in both switching chambers are the same for this case and chosen so that about 50% of the applied total voltage U GES drops across each switching chamber via the respective interrupter unit.
  • Breaker units in an electricmaschinegerat with more than two sub is designated as the first interrupter unit interrupter unit always hen in relation to the closing of ⁇ , adjacent second interrupter unit Anlagense ⁇ .
  • the voltage applied to these two interrupter units voltage is to be based on the applied total voltage U GE S.
  • the resistance Rs for the first and second breaker unit is to be calculated in a first step.
  • the former second interrupter unit is defined as the first interrupter unit then in a second step and the third switch unit as a second interrupter ⁇ unit basis.
  • the voltage U GES in this case is the voltage applied to the second and third interrupter unit.
  • the reactance of the inductively acting electrical component is to be calculated as a value to be calculated R 3 analogous to the above formula.
  • the electrical switching device is a circuit breaker, in particular for high-voltage systems.
  • the electrical switching device according to the invention is used in a direct or alternating voltage network, in particular for high voltages.
  • FIG. 1 shows a side view of the electrical switching device with two breaker units and the electrical equivalent circuit diagram
  • FIG. 2 shows a schematic side view of an interrupter unit with an internally arranged conductive coating of the interrupter chamber
  • FIG. Fig. 3 Preparation voltage drop across a interrup ⁇ cheraji based on a used control resistor R 3 per interrupter unit for different capacities of the interrupter unit C ⁇ , and the capacity of the sub ⁇ interrupter units to electrically earth.
  • FIG. 1 shows a side view of the electrical switching device 1 with two breaker units 2 a, 2 b as well as the electrical equivalent circuit diagram.
  • the interrupter units 2a, 2b of the electric Weggerats 1 are fixed by means of a Stut ⁇ decomp. 6
  • the switch points 3 arranged in the breaker units 2 a, 2 b are not shown in FIG. 1.
  • the breaker units 2a, 2b have an electrical capacitance C e with respect to the electrical ground.
  • the electric capacitance Cy connected as a capacitance Ck of the interrupter unit 2a is open, switch position 3 parallel to a resistor R 3.
  • the resistor 4 By using the resistor 4 as a parallel to the capacitance of the interruption unit 2 a connected resistive-acting electrical component, a voltage equal distribution over the electrical switching device 1 is ensured.
  • FIG. 2 shows a schematic side view of the interrupter unit 2 a with an internally arranged conductive coating 5 of the interrupter chamber 7.
  • the conductive coating 5 serves as a resitively acting electrical component 4 parallel to the electrical switch point 3 arranged in the switching chamber 7 (not shown).
  • Fig. 3 is the voltage drop across an interrupter unit with respect to a used control resistor R s applied per interrupter unit for different electrical capacities. It can be seen from FIG. 3 that, given a capacitance of the interrupter unit 2a when the switch point 3 is open, an electrical capacitance C k of 2OpF to 5OpF and assumed capacitances of the interrupter unit 2a with respect to the electrical ground of 20 pF to 50 pF have a different course the quotient of the voltage U applied across the first interrupter unit 2a is present relative to the total voltage U tot applied across the two interrupter units 2a, 2b.
  • the resistance value R s is chosen optimally such that a nearly equal voltage is applied to the two interrupter units 2a, 2b. With the aforementioned capacitances a Gleichver ⁇ distribution of the applied total voltage across both interrupter units 2 a, 2 b is ensured.

Landscapes

  • Gas-Insulated Switchgears (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

L'invention concerne un commutateur électrique avec commande de potentiel, comprenant au moins une unité de sectionnement, l'unité de sectionnement présentant un point de commutation électrique et l'unité de sectionnement à chaque fois munie d'un point de commutation possédant une capacité électrique par rapport à la terre électrique. Les commutateurs électriques tels que les commutateurs de puissance pour les équipements à haute tension, par exemple, sont généralement utilisés avec des condensateurs dits de commande branchés en parallèle avec le point de commutation pour l'homogénéisation de la tension sur plusieurs unités de sectionnement d'un commutateur électrique, ce qui permet de garantir une contrainte de tension quasiment homogène pour toutes les unités de sectionnement du commutateur électrique. L'objet de la présente invention est d'utiliser, en remplacement ou en complément des condensateurs de commande utilisés, des composants à action résistive et/ou inductive pour l'homogénéisation de la tension sur un commutateur électrique.
EP07703610A 2006-01-26 2007-01-03 Commutateur électrique avec commande de potential Withdrawn EP1977435A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006004811A DE102006004811A1 (de) 2006-01-26 2006-01-26 Elektrisches Schaltgerät mit Potentialsteuerung
PCT/EP2007/050043 WO2007085510A1 (fr) 2006-01-26 2007-01-03 Commutateur électrique avec commande de potential

Publications (1)

Publication Number Publication Date
EP1977435A1 true EP1977435A1 (fr) 2008-10-08

Family

ID=37897438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07703610A Withdrawn EP1977435A1 (fr) 2006-01-26 2007-01-03 Commutateur électrique avec commande de potential

Country Status (5)

Country Link
US (1) US20090014418A1 (fr)
EP (1) EP1977435A1 (fr)
CN (1) CN101375356A (fr)
DE (1) DE102006004811A1 (fr)
WO (1) WO2007085510A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7778514B2 (en) * 2005-07-15 2010-08-17 International Broadband Electric Communications, Inc. Coupling of communications signals to a power line
US8890019B2 (en) * 2011-02-05 2014-11-18 Roger Webster Faulkner Commutating circuit breaker
ES2613669T3 (es) * 2011-09-30 2017-05-25 Alevo International, S.A. Disyuntor de conmutación
US9054530B2 (en) 2013-04-25 2015-06-09 General Atomics Pulsed interrupter and method of operation
DE102017202735A1 (de) * 2017-02-21 2018-08-23 Siemens Aktiengesellschaft Elektrisches Schaltgerät
DE102017202739A1 (de) 2017-02-21 2018-08-23 Siemens Aktiengesellschaft Elektrische Schalteinrichtung
DE102019212106A1 (de) * 2019-08-13 2021-02-18 Siemens Energy Global GmbH & Co. KG Schaltgeräte mit zwei in Reihe geschalteten Unterbrechereinheiten

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE726441C (de) * 1940-06-08 1942-10-14 Bbc Brown Boveri & Cie Schalter mit Mehrfachunterbrechung
DE905159C (de) * 1944-04-28 1954-02-25 Aeg Widerstand zur Spannungssteuerung an Leistungsunterbrechungsstrecken
DE1018504B (de) * 1956-03-02 1957-10-31 Licentia Gmbh Potentialsteuerung fuer Schaltstrecken von Hochspannungsschaltern
FR1194388A (fr) * 1957-04-12 1959-11-09
EP0068067B1 (fr) * 1981-06-26 1985-11-06 Manoranjan Prasad Dr.-Ing. Verma Résistance à haute tension pour isolateurs de lignes aériennes
DE19912022B4 (de) * 1999-03-17 2009-02-12 Abb Ag Hochspannungsschaltgerät mit Serienschaltung von mindestens zwei Vakuumschaltkammern und Verfahren zum Betrieb des Hochspannungsschallgerätes
DE19958646C2 (de) * 1999-12-06 2001-12-06 Abb T & D Tech Ltd Hybridleistungsschalter
EP1390961A1 (fr) * 2001-05-30 2004-02-25 ABB PATENT GmbH Commande d'au moins un trajet de commutation a vide

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007085510A1 *

Also Published As

Publication number Publication date
WO2007085510A1 (fr) 2007-08-02
CN101375356A (zh) 2009-02-25
US20090014418A1 (en) 2009-01-15
DE102006004811A1 (de) 2007-08-09

Similar Documents

Publication Publication Date Title
EP2737510B1 (fr) Disjoncteur de courant continu
EP1566868B1 (fr) Dispositif dérivateur de surtensions et dispositif d'allumage pour dispositif dérivateur de surtensions
WO2007085510A1 (fr) Commutateur électrique avec commande de potential
EP3807920B1 (fr) Tube de commutation sous vide et dispositif de commutation à haute tension
EP1577904A1 (fr) Traversée haute tension avec élément pour les contrôle du champ électrique
EP3510618A1 (fr) Disjoncteur
DE102007006719A1 (de) Anordnung und Verfahren zur Kompensation eines Fehlerstromes bei einem Erdschluss
WO2018046709A1 (fr) Disjoncteur
EP3304671A1 (fr) Circuit de protection contre les surtensions
EP3589964A1 (fr) Procédé et dispositif pour surveiller les facteurs de pertes de traversées de condensateurs
DE102016117003A1 (de) Schutzschaltgerät
WO2017129291A1 (fr) Dispositif de dérivation de surtensions
DE102010048677B4 (de) Schaltung und Verfahren zum Messen der Entladezeit eines Kondensators über mindestens einen Messwiderstand
CH668516A5 (de) Ueberspannungsschutzeinrichtung fuer elektrische anlagen, insbesondere fuer elektronische apparate.
WO2017012740A1 (fr) Composant de la technique énergétique, en particulier tube commutateur à vide
EP3928406A1 (fr) Procédé de surveillance d'un dispositif électrique
DE112014006555B4 (de) Kommutierungsschaltung
DE102006050732A1 (de) Elektrische Schaltgeräteanordnung mit einer Schaltstelle
EP3084911A1 (fr) Unité de régulation de tension électrique
DE202015102834U1 (de) Überspannungsschutzschaltung
DE1463261C (de) Schutzanordnung für ein elektrisches Wechselstromgerät
EP4244879A1 (fr) Dispositif de commutation électrique pour utilisations à moyenne et/ou haute tension
EP0842557A1 (fr) Batterie de condensateurs commutee par des thyristors
DE102011003182A1 (de) Vorrichtung zum Unterdrücken harmonischer Oberschwingungen
DE102013224736A1 (de) Vorrichtung und Verfahren zur Korrektur von Wechselströmen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20080613

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR LI SE

RBV Designated contracting states (corrected)

Designated state(s): CH DE FR LI SE

17Q First examination report despatched

Effective date: 20091013

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100426