EP1347482A1 - Distribution network - Google Patents

Distribution network Download PDF

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Publication number
EP1347482A1
EP1347482A1 EP20020405200 EP02405200A EP1347482A1 EP 1347482 A1 EP1347482 A1 EP 1347482A1 EP 20020405200 EP20020405200 EP 20020405200 EP 02405200 A EP02405200 A EP 02405200A EP 1347482 A1 EP1347482 A1 EP 1347482A1
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EP
European Patent Office
Prior art keywords
distribution network
circuit breaker
power distribution
switching
overhead line
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.)
Granted
Application number
EP20020405200
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German (de)
French (fr)
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EP1347482B1 (en
Inventor
Michael Pohle
Martin Kriegel
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ABB Schweiz AG
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ABB Schweiz AG
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Application filed by ABB Schweiz AG filed Critical ABB Schweiz AG
Priority to DE50208334T priority Critical patent/DE50208334D1/en
Priority to AT02405200T priority patent/ATE341829T1/en
Priority to EP20020405200 priority patent/EP1347482B1/en
Priority to US10/378,849 priority patent/US20030173831A1/en
Priority to RU2003107070A priority patent/RU2321129C2/en
Priority to CNB031199658A priority patent/CN100365902C/en
Publication of EP1347482A1 publication Critical patent/EP1347482A1/en
Publication of EP1347482B1 publication Critical patent/EP1347482B1/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6661—Combination with other type of switch, e.g. for load break 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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H01H33/125—Load break switches comprising a separate circuit breaker
    • 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
    • H01H33/143—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc of different construction or type

Definitions

  • the invention is based on a multi-phase electrical Power distribution network according to the preamble of claim 1:
  • Measures are provided to prevent such large Slopes of recurring voltage can occur.
  • the proven means has been the installation of capacitors in the Power distribution network proved that the natural frequency of the Energy distribution network to be viewed as an LC resonant circuit reduce to the extent that the steepness of the recurring Tension only comparatively small, due to conventional Circuit breaker has safely manageable values.
  • the Capacitors are usually between the High voltage potential of the energy distribution network and the Earth installed.
  • the invention as characterized in the independent claim solves the task of a multi-phase power distribution network to create in which no additional capacitors for the reduction of the steepness of the recurring voltage are required.
  • a hybrid circuit breaker In the power distribution network according to the invention with at least one multiphase overhead line is as Circuit breaker to protect the at least one overhead line a hybrid circuit breaker is provided.
  • the Hybrid circuit breakers have at least two switching chambers operated in different extinguishing media.
  • the at least one first of these interrupters is for the permanent mastery of high withstand voltages at least a second of these interrupters is for the Mastery of comparatively high initial steepness recurring voltage.
  • Embodiment is at least one as a second switching chamber Vacuum interrupter provided. The use of other switching and Isolation media is in such hybrid circuit breakers quite conceivable.
  • the advantages achieved by the invention are there too see that the additional capacitors are omitted, making the Space required for the switch stations of the Energy distribution network is reduced, so that Construction costs for the creation of the energy distribution network can be advantageously reduced. In addition, these do not apply Capacitors also bridged the additional insulators Distances and thus the effort for regular cleaning this isolation. With the elimination of the additional capacitors there is also a risk of undesirable occurrences Ferroresonances banished in the energy distribution network.
  • FIG. 1 shows a highly simplified single-phase Equivalent circuit diagram of a conventionally constructed Power distribution network 1.
  • This Power distribution network 1 has a potential High voltage part 2 and a grounded part 3.
  • a terminal 4 arranged in the high-voltage part 2 and one in the earthed part 3 arranged terminal 5 is an ohmic Resistor 6 connected in series with a capacitor 7.
  • the Resistor 6 represents the ohmic part of the network impedance
  • the capacitor 7 represents the capacitive portion of the Mains impedance
  • that upstream of terminal 4 Inductance 8 represents the inductive part of the network impedance represents an overhead line 9 from the terminal 4.
  • this overhead line 9 is, just like the other not illustrated end, a circuit breaker 10 provided this in the event of a fault, both circuit breakers switch Overhead line 9 from.
  • the circuit breaker 10 Immediately after the circuit breaker 10 is a terminal 11 intended. Between this terminal 11 and one in the grounded Part 3 arranged terminal 12 is an additional capacitor 13 connected. A similar additional capacitor is also on other end of the overhead line 9 is provided. If so, for example triggered by lightning in one Fault location 14 an earth fault 15 occurs, so the disconnect the overhead line 9 of both circuit breakers. If the fault location 14 is comparatively close to the circuit breaker 10 is, in the area in which, on this Circuit breaker 10 related from the occurrence of a Distance short circuit can be spoken by the additional capacitor 13 the slope of the increase in recurring voltage is limited to values that the Circuit breaker 10 can master properly. By the short-circuit on the piece of the overhead line 9 between the circuit breaker 10 and the fault location 14 called traveling wave processes can then no interference cause.
  • FIG. 2 shows a highly simplified single phase Equivalent circuit diagram of a simplified according to the invention established power distribution network 1.
  • the usually always existing scissor disconnectors, earth electrodes and transducers are not shown, also not the energy producers.
  • This Power distribution network 1 has a potential High voltage part 2 and a grounded part 3.
  • a terminal 4 arranged in the high-voltage part 2 and one in the earthed part 3 arranged terminal 5 is an ohmic Resistor 6 connected in series with a capacitor 7.
  • the Resistor 6 represents the ohmic part of the network impedance
  • the capacitor 7 represents the capacitive portion of the Mains impedance
  • Inductance 8 represents the inductive part of the network impedance represents an overhead line 9 from the terminal 4.
  • the hybrid circuit breaker 16 has one preferred Embodiment two series-connected switching chambers 17 and 18, of which the first switching chamber 17 as with a Isolation gas filled chamber is formed while the second Switching chamber 18 is designed as a vacuum switching chamber.
  • the first switching chamber 17 is for permanent control high holding voltages (operating voltages).
  • the second switching chamber 18 is for mastery comparatively high initial steepness of recurring Voltage designed, it takes over shortly after the extinction of the switch-off arc the comparatively great steepness of the increase in the recurring voltage. During this period, the switching distance becomes the first Switch chamber 17 continue to blow and from conductive Switching residues cleaned so that they are sufficient afterwards dielectric strength achieved to further increase the recurring voltage and then the operating voltage withstand.
  • the hybrid circuit breaker 16 is also included an effective voltage control, which ensures that neither of the two switching chambers 17 and 18 during the switch-off process and during normal operation is dielectrically overloaded.
  • the elimination of the additional capacitors has the big advantage with that the natural frequency of the power distribution network certainly far enough from the area lies in which harmful ferroresonances can occur.
  • the operational safety and the availability of the The energy distribution network is thereby advantageously increased.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Hybrid Cells (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

A hybrid circuit breaker (16) in the network, comprises a switching chamber (17) that is designed to cope with high holding voltage continuously and a vacuum switching chamber (18) copy with comparatively high initial gradients of the returning voltage. Addition capacitors are not included in the power distribution network.

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die Erfindung geht aus von einem mehrphasigen elektrischen Energieverteilungsnetz gemäss dem Oberbegriff des Anspruchs 1:The invention is based on a multi-phase electrical Power distribution network according to the preamble of claim 1:

STAND DER TECHNIKSTATE OF THE ART

Aus dem Artikel von Rainer Bitsch und Friedrich Richter in der Zeitschrift etz-a, Bd. 98 (1977), Seiten 137 bis 141, ist ein mit Hochspannung betriebenes, dreiphasiges Energieverteilungsnetz bekannt. Dieses Energieverteilungsnetz weist Freileitungen auf, welche verschiedene Schaltstationen und Verbraucher verbinden. In den Schaltstationen dieses Energieverteilungsnetzes sind Leistungsschalter vorgesehen, welche u. a. dem Schutz der Leitungen und Verbraucher gegen durch einen Kurzschluss verursachte Folgeschäden dienen. Diese Leistungsschalter schalten im Schadensfall selektiv die fehlerbehafteten Bereiche des Energieverteilungsnetzes ab. Ein handelsüblicher Leistungsschalter beherrscht in der Regel die im Energieverteilungsnetz auftretenden Schaltfälle. Wenn aber das Energieverteilungsnetz eine vergleichsweise hohe Kurzschlussleistung mit Fehlerströmen im Bereich über etwa 40 kA bis 50 kA aufweist, so ist es jedoch möglich, dass die handelsüblichen Leistungsschalter den speziellen Schaltfall des Abstandkurzschlusses nicht in jedem Fall sicher beherrschen. From the article by Rainer Bitsch and Friedrich Richter in the Zeitschrift etz-a, vol. 98 (1977), pages 137 to 141, is a high-voltage operated, three-phase Power distribution network known. This energy distribution network has overhead lines, which different switching stations and connect consumers. In the switch stations this Power distribution network, circuit breakers are provided, which u. a. the protection of lines and consumers against consequential damage caused by a short circuit. This Circuit breakers selectively switch in the event of damage faulty areas of the power distribution network. On commercially available circuit breakers usually master the Switching cases occurring in the power distribution network. If but the energy distribution network is comparatively high Short-circuit power with fault currents in the range above about 40 has kA to 50 kA, however, it is possible that the commercially available circuit breakers the special switching case the short-circuit is not always safe dominate.

Beim Abschalten eines Abstandkurzschlusses treten in der erstlöschenden Phase des Leistungsschalters nach dem Erlöschen des Schaltlichtbogens in der Schaltstrecke zwischen den Schaltkontakten besonders grosse Steilheiten der wiederkehrenden Spannung auf, die bei herkömmlichen Leistungsschaltern zu einem unerwünschten Wiederzünden der Schaltstrecke und damit zu einem Versagen des Leistungsschalters führen können. Um derartige Fehlschaltungen zu vermeiden, werden im mehrphasigen Energieverteilungsnetz Massnahmen vorgesehen, die verhindern, dass derartig grosse Steilheiten der wiederkehrenden Spannung auftreten können. Als bewährtes Mittel hat sich der Einbau von Kondensatoren in das Energieverteilungsnetz erwiesen, welche die Eigenfrequenz des als LC-Schwingkreis anzusehenden Energieverteilungsnetzes soweit reduzieren, dass die Steilheit der wiederkehrenden Spannung nur noch vergleichsweise kleine, durch herkömmliche Leistungsschalter sicher beherrschbare Werte aufweist. Die Kondensatoren werden in der Regel zwischen dem Hochspannungspotential des Energieverteilungsnetzes und der Erde eingebaut.When a distance short circuit is switched off, the First-time phase of the circuit breaker after it has gone out of the switching arc in the switching path between the Switch contacts particularly steep slopes recurring voltage on conventional Circuit breakers to undesired re-ignition of the Switching distance and thus to failure of the Circuit breaker can lead. To such wrong switching to be avoided in the multi-phase power distribution network Measures are provided to prevent such large Slopes of recurring voltage can occur. As The proven means has been the installation of capacitors in the Power distribution network proved that the natural frequency of the Energy distribution network to be viewed as an LC resonant circuit reduce to the extent that the steepness of the recurring Tension only comparatively small, due to conventional Circuit breaker has safely manageable values. The Capacitors are usually between the High voltage potential of the energy distribution network and the Earth installed.

Dieser Einbau von Kondensatoren ist aufwendig im Hinblick auf die Kosten und den Platzbedarf für diese Elemente. Zudem weist jeder der Kondensatoren eine Isolierstrecke gegen Erde auf, die gewartet werden muss, wodurch zusätzliche Kosten verursacht werden, und wobei der Zeitbedarf für diese Wartung die Verfügbarkeit des Energieverteilungsnetzes etwas einschränkt. Der Einbau von zusätzlichen Kondensatoren kann die Eigenfrequenz des Energieverteilungsnetzes so verändern, dass Ferroresonanzen möglich sind. Aufgrund dieser Ferroresonanzen können bei Schaltvorgängen im Netz unerwünschte Überspannungen auftreten. This installation of capacitors is expensive in terms of the cost and space requirements for these elements. Also points each of the capacitors has an isolating path from earth, which needs to be serviced, creating additional costs caused and the time required for this maintenance the availability of the energy distribution network somewhat limits. The installation of additional capacitors can change the natural frequency of the energy distribution network so that ferroresonances are possible. Based on these Ferroresonances can occur during switching operations in the network unwanted surges occur.

DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION

Die Erfindung, wie sie im unabhängigen Anspruch gekennzeichnet ist, löst die Aufgabe, ein mehrphasiges Energieverteilungsnetz zu schaffen, in welchem keine zusätzlichen Kondensatoren für die Reduktion der anlagebedingten Steilheit der wiederkehrenden Spannung benötigt werden.The invention as characterized in the independent claim solves the task of a multi-phase power distribution network to create in which no additional capacitors for the reduction of the steepness of the recurring voltage are required.

In dem erfindungsgemässen Energieverteilungsnetz mit mindestens einer mehrphasigen Freileitung ist als Leistungsschalter zum Schutz der mindestens einen Freileitung ein Hybridleistungsschalter vorgesehen. Der Hybridleistungsschalter weist mindestens zwei mit unterschiedlichen Löschmedien betriebene Schaltkammern auf. Die mindestens eine erste dieser Schaltkammern ist für die dauerhafte Beherrschung hoher Haltespannungen ausgelegt, die mindestens eine zweite dieser Schaltkammern ist für die Beherrschung vergleichsweise hoher Anfangssteilheiten der wiederkehrenden Spannung ausgelegt. Bei einer bevorzugten Ausführungsform ist als zweite Schaltkammer mindestens eine Vakuumschaltkammer vorgesehen. Der Einsatz anderer Schalt- und Isolationsmedien ist bei derartigen Hybridleistungsschaltern durchaus vorstellbar.In the power distribution network according to the invention with at least one multiphase overhead line is as Circuit breaker to protect the at least one overhead line a hybrid circuit breaker is provided. The Hybrid circuit breakers have at least two switching chambers operated in different extinguishing media. The at least one first of these interrupters is for the permanent mastery of high withstand voltages at least a second of these interrupters is for the Mastery of comparatively high initial steepness recurring voltage. In a preferred one Embodiment is at least one as a second switching chamber Vacuum interrupter provided. The use of other switching and Isolation media is in such hybrid circuit breakers quite conceivable.

Die durch die Erfindung erreichten Vorteile sind darin zu sehen, dass die Zusatzkondensatoren entfallen, wodurch der Platzbedarf für die Schaltstationen des Energieverteilungsnetzes verkleinert wird, sodass die Baukosten für die Erstellung des Energieverteilungsnetzes vorteilhaft reduziert werden. Zudem entfallen mit diesen Kondensatoren auch die zusätzlichen isolierend überbrückten Distanzen und damit der Aufwand für die regelmässige Reinigung dieser Isolation. Mit dem Wegfallen der Zusatzkondensatoren wird auch die Gefahr des Auftretens von unerwünschten Ferroresonanzen im Energieverteilungsnetz gebannt. The advantages achieved by the invention are there too see that the additional capacitors are omitted, making the Space required for the switch stations of the Energy distribution network is reduced, so that Construction costs for the creation of the energy distribution network can be advantageously reduced. In addition, these do not apply Capacitors also bridged the additional insulators Distances and thus the effort for regular cleaning this isolation. With the elimination of the additional capacitors there is also a risk of undesirable occurrences Ferroresonances banished in the energy distribution network.

Die Erfindung, ihre Weiterbildung und die damit erzielbaren Vorteile werden nachstehend anhand der Zeichnung, welche lediglich einen möglichen Ausführungsweg darstellt, näher erläutert.The invention, its further development and the achievable with it Advantages are shown below using the drawing, which represents only one possible way of execution, closer explained.

KURZE BESCHREIBUNG DER ZEICHNUNGBRIEF DESCRIPTION OF THE DRAWING

Es zeigen:

  • Fig.1 das Ersatzschaltbild eines Teils eines herkömmlich beschalteten Energieverteilungsnetzes, und
  • Fig. 2 das Ersatzschaltbild eines Teils eines erfindungsgemäss vereinfachten Energieverteilungsnetzes.
    • Show it:
  • 1 shows the equivalent circuit diagram of a part of a conventionally connected power distribution network, and
  • 2 shows the equivalent circuit diagram of part of a simplified energy distribution network according to the invention.

    • Alle für das unmittelbare Verständnis der Erfindung nicht erforderlichen Elemente sind nicht dargestellt bzw. nicht beschrieben.None for the immediate understanding of the invention required elements are not shown or not described.

    WEGE ZUR AUSFÜHRUNG DER ERFINDUNGWAYS OF CARRYING OUT THE INVENTION

    Die Figur 1 zeigt ein stark vereinfachtes einphasiges Ersatzschaltbild eines herkömmlich aufgebauten Energieverteilungsnetzes 1. Die in der Regel stets vorhandenen Scherentrenner, Erder und Messwandler sind nicht eingezeichnet, ebenso nicht die Energieerzeuger. Dieses Energieverteilungsnetz 1 weist einen auf Potential liegenden Hochspannungsteil 2 und einen geerdeten Teil 3 auf. Zwischen einer im Hochspannungsteil 2 angeordneten Klemme 4 und einer im geerdeten Teil 3 angeordneten Klemme 5 ist ein ohmscher Widerstand 6 in Reihe mit einem Kondensator 7 geschaltet. Der Widerstand 6 stellt den ohmschen Anteil der Netzimpedanz dar, der Kondensator 7 stellt den kapazitiven Anteil der Netzimpedanz dar, und die der Klemme 4 vorgeschaltete Induktivität 8 stellt den induktiven Anteil der Netzimpedanz dar. Von der Klemme 4 geht eine Freileitung 9 ab. Am Anfang dieser Freileitung 9 ist, ebenso wie am anderen nicht dargestellten Ende, ein Leistungsschalter 10 vorgesehen, diese beiden Leistungsschalter schalten im Fehlerfall die Freileitung 9 ab.Figure 1 shows a highly simplified single-phase Equivalent circuit diagram of a conventionally constructed Power distribution network 1. As a rule, always available Scissor disconnectors, earth electrodes and transducers are not shown, also not the energy producers. This Power distribution network 1 has a potential High voltage part 2 and a grounded part 3. Between a terminal 4 arranged in the high-voltage part 2 and one in the earthed part 3 arranged terminal 5 is an ohmic Resistor 6 connected in series with a capacitor 7. The Resistor 6 represents the ohmic part of the network impedance, the capacitor 7 represents the capacitive portion of the Mains impedance, and that upstream of terminal 4 Inductance 8 represents the inductive part of the network impedance represents an overhead line 9 from the terminal 4. At the beginning this overhead line 9 is, just like the other not illustrated end, a circuit breaker 10 provided this in the event of a fault, both circuit breakers switch Overhead line 9 from.

    Unmittelbar nach dem Leistungsschalter 10 ist eine Klemme 11 vorgesehen. Zwischen dieser Klemme 11 und einer im geerdeten Teil 3 angeordneten Klemme 12 ist ein Zusatzkondensator 13 geschaltet. Ein gleichartiger Zusatzkondensator ist auch am anderen Ende der Freileitung 9 vorgesehen. Wenn nun, beispielsweise durch einen Blitzschlag ausgelöst, in einem Fehlerort 14 ein Erdkurzschluss 15 auftritt, so müssen die beiden Leistungsschalter die Freileitung 9 abschalten. Wenn der Fehlerort 14 vergleichsweise nahe beim Leistungsschalter 10 ist, in dem Bereich also in dem, auf diesen Leistungsschalter 10 bezogen, vom Auftreten eines Abstandskurzschlusses gesprochen werden kann, so wird durch den Zusatzkondensator 13 die Steilheit des Anstiegs der wiederkehrenden Spannung auf solche Werte begrenzt, die der Leistungsschalter 10 einwandfrei beherrschen kann. Die durch den Abstandskurzschluss auf dem Stück der Freileitung 9 zwischen dem Leistungsschalter 10 und dem Fehlerort 14 hervor gerufenen Wanderwellenvorgänge können dann keine Störungen verursachen.Immediately after the circuit breaker 10 is a terminal 11 intended. Between this terminal 11 and one in the grounded Part 3 arranged terminal 12 is an additional capacitor 13 connected. A similar additional capacitor is also on other end of the overhead line 9 is provided. If so, for example triggered by lightning in one Fault location 14 an earth fault 15 occurs, so the disconnect the overhead line 9 of both circuit breakers. If the fault location 14 is comparatively close to the circuit breaker 10 is, in the area in which, on this Circuit breaker 10 related from the occurrence of a Distance short circuit can be spoken by the additional capacitor 13 the slope of the increase in recurring voltage is limited to values that the Circuit breaker 10 can master properly. By the short-circuit on the piece of the overhead line 9 between the circuit breaker 10 and the fault location 14 called traveling wave processes can then no interference cause.

    Die Figur 2 zeigt ein stark vereinfachtes einphasiges Ersatzschaltbild eines erfindungsgemäss vereinfacht aufgebauten Energieverteilungsnetzes 1. Die in der Regel stets vorhandenen Scherentrenner, Erder und Messwandler sind nicht eingezeichnet, ebenso nicht die Energieerzeuger. Dieses Energieverteilungsnetz 1 weist einen auf Potential liegenden Hochspannungsteil 2 und einen geerdeten Teil 3 auf. Zwischen einer im Hochspannungsteil 2 angeordneten Klemme 4 und einer im geerdeten Teil 3 angeordneten Klemme 5 ist ein ohmscher Widerstand 6 in Reihe mit einem Kondensator 7 geschaltet. Der Widerstand 6 stellt den ohmschen Anteil der Netzimpedanz dar, der Kondensator 7 stellt den kapazitiven Anteil der Netzimpedanz dar, und die der Klemme 4 vorgeschaltete Induktivität 8 stellt den induktiven Anteil der Netzimpedanz dar. Von der Klemme 4 geht eine Freileitung 9 ab.Figure 2 shows a highly simplified single phase Equivalent circuit diagram of a simplified according to the invention established power distribution network 1. The usually always existing scissor disconnectors, earth electrodes and transducers are not shown, also not the energy producers. This Power distribution network 1 has a potential High voltage part 2 and a grounded part 3. Between a terminal 4 arranged in the high-voltage part 2 and one in the earthed part 3 arranged terminal 5 is an ohmic Resistor 6 connected in series with a capacitor 7. The Resistor 6 represents the ohmic part of the network impedance, the capacitor 7 represents the capacitive portion of the Mains impedance, and that upstream of terminal 4 Inductance 8 represents the inductive part of the network impedance represents an overhead line 9 from the terminal 4.

    Am Anfang dieser Freileitung 9 ist, ebenso wie am anderen nicht dargestellten Ende, ein Hybridleistungsschalter 16 vorgesehen, diese beiden Hybridleistungsschalter schalten im Fehlerfall die Freileitung 9 ab. Wenn nun, beispielsweise durch einen Blitzschlag ausgelöst, in einem Fehlerort 14 ein Erdkurzschluss 15 auftritt, so schalten die beiden Hybridleistungsschalter die Freileitung 9 einwandfrei ab. Sie schalten die Freileitung 9 auch im Fehlerfall "Abstandskurzschluss" problemlos ab, da sie sämtliche, in Energieverteilungsnetzen 1 möglichen Steilheiten des Anstiegs der wiederkehrenden Spannung beherrschen. Kondensatoren für die Reduzierung des Anstiegs der wiederkehrenden Spannung sind deshalb hier nicht nötig.At the beginning of this overhead line 9, as well as at the other not shown end, a hybrid circuit breaker 16th provided, these two hybrid circuit breakers switch in Failure of the overhead line 9. If so, for example triggered by a lightning strike in a fault location 14 Earth fault 15 occurs, the two switch Hybrid circuit breaker the overhead line 9 flawlessly. she switch the overhead line 9 even in the event of a fault "Short circuit" without problems, since they all, in Power distribution networks 1 possible steepness of the increase the recurring tension. Capacitors for are the reduction in the increase in recurring voltage therefore not necessary here.

    Der Hybridleistungsschalter 16 weist in einer bevorzugten Ausführungsform zwei in Reihe geschaltete Schaltkammern 17 und 18 auf, von denen die erste Schaltkammer 17 als mit einem Isoliergas gefüllte Kammer ausgebildet ist, während die zweite Schaltkammer 18 als Vakuumschaltkammer ausgebildet ist. Die erste Schaltkammer 17 ist für die dauerhafte Beherrschung hoher Haltespannungen (Betriebsspannungen) ausgelegt. Die zweite Schaltkammer 18 ist für die Beherrschung vergleichsweise hoher Anfangssteilheiten der wiederkehrenden Spannung ausgelegt, sie übernimmt in dem Zeitraum kurz nach dem Erlöschen des Ausschaltlichtbogens die vergleichsweise grosse Steilheit des Anstiegs der wiederkehrenden Spannung. Während dieses Zeitraums wird die Schaltstrecke der ersten Schaltkammer 17 weiter beblasen und von leitenden Schaltrückständen gereinigt, sodass sie danach eine genügende dielektrische Festigkeit erreicht, um dem weiteren Anstieg der wiederkehrenden Spannung und danach der Betriebsspannung standzuhalten. Der Hybridleistungsschalter 16 ist zudem mit einer wirkungsvollen Spannungssteuerung versehen, welche sicherstellt, dass keine der beiden Schaltkammern 17 und 18 während des Ausschaltvorgangs und während des Normalbetriebs dielektrisch überlastet wird.The hybrid circuit breaker 16 has one preferred Embodiment two series-connected switching chambers 17 and 18, of which the first switching chamber 17 as with a Isolation gas filled chamber is formed while the second Switching chamber 18 is designed as a vacuum switching chamber. The first switching chamber 17 is for permanent control high holding voltages (operating voltages). The second switching chamber 18 is for mastery comparatively high initial steepness of recurring Voltage designed, it takes over shortly after the extinction of the switch-off arc the comparatively great steepness of the increase in the recurring voltage. During this period, the switching distance becomes the first Switch chamber 17 continue to blow and from conductive Switching residues cleaned so that they are sufficient afterwards dielectric strength achieved to further increase the recurring voltage and then the operating voltage withstand. The hybrid circuit breaker 16 is also included an effective voltage control, which ensures that neither of the two switching chambers 17 and 18 during the switch-off process and during normal operation is dielectrically overloaded.

    Der Wegfall der Zusatzkondensatoren bringt den grossen Vorteil mit sich, dass die Eigenfrequenz des Energieverteilungsnetzes mit grosser Sicherheit genügend weit von dem Bereich entfernt liegt, in welchem schädliche Ferroresonanzen auftreten können. Die Betriebssicherheit und die Verfügbarkeit des Energieverteilungsnetzes wird dadurch vorteilhaft erhöht.The elimination of the additional capacitors has the big advantage with that the natural frequency of the power distribution network certainly far enough from the area lies in which harmful ferroresonances can occur. The operational safety and the availability of the The energy distribution network is thereby advantageously increased.

    BEZEICHNUNGSLISTENAME LIST

    11
    EnergieverteilungsnetzPower distribution network
    22
    HochspannungsteilHV unit
    33
    geerdeter Teilgrounded part
    4,54.5
    Klemmeclamp
    66
    Widerstandresistance
    77
    Kondensatorcapacitor
    88th
    Induktivitätinductance
    99
    Freileitungoverhead line
    1010
    Leistungsschalterbreakers
    11,1211.12
    Klemmeclamp
    1313
    Zusatzkondensatoradditional capacitor
    1414
    Fehlerortfault location
    1515
    Erdkurzschlussearth fault
    1616
    HybridleistungsschalterHybrid circuit breaker
    17,1817.18
    Schaltkammerswitching chamber

    Claims (4)

    Energieverteilungsnetz mit mindestens einer mehrphasigen Freileitung (9), mit mindestens einem zum Schutz der mindestens einen Freileitung (9) vorgesehenen Leistungsschalter, dadurch gekennzeichnet, dass als Leistungsschalter ein Hybridleistungsschalter (16) vorgesehen ist. Energy distribution network with at least one multi-phase overhead line (9), with at least one circuit breaker provided to protect the at least one overhead line (9), characterized in that that a hybrid circuit breaker (16) is provided as the circuit breaker. Energieverteilungsnetz nach Anspruch 1, dadurch gekennzeichnet, dass der Hybridleistungsschalter (16) mindestens zwei mit unterschiedlichen Löschmedien betriebene Schaltkammern (17,18) aufweist, dass die mindestens eine erste dieser Schaltkammern (17) für die dauerhafte Beherrschung hoher Haltespannungen ausgelegt ist, und dass die mindestens eine zweite dieser Schaltkammern (18) für die Beherrschung vergleichsweise hoher Anfangssteilheiten der wiederkehrenden Spannung ausgelegt ist. Energy distribution network according to claim 1, characterized in that the hybrid circuit breaker (16) has at least two switching chambers (17, 18) operated with different extinguishing media, that the at least one first of these switching chambers (17) is designed for the permanent control of high holding voltages, and that the at least one second of these switching chambers (18) is designed for the control of comparatively high initial steepness of the recurring voltage. Energieverteilungsnetz nach Anspruch 2, dadurch gekennzeichnet, dass als zweite Schaltkammer mindestens eine Vakuumschaltkammer vorgesehen ist. Power distribution network according to claim 2, characterized in that that at least one vacuum interrupter is provided as the second interrupter. Energieverteilungsnetz nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass keine Zusatzkondensatoren (13) vorgesehen sind. Energy distribution network according to one of Claims 1 to 3, characterized in that that no additional capacitors (13) are provided.
    EP20020405200 2002-03-15 2002-03-15 Distribution network Revoked EP1347482B1 (en)

    Priority Applications (6)

    Application Number Priority Date Filing Date Title
    DE50208334T DE50208334D1 (en) 2002-03-15 2002-03-15 Power distribution network
    AT02405200T ATE341829T1 (en) 2002-03-15 2002-03-15 ENERGY DISTRIBUTION NETWORK
    EP20020405200 EP1347482B1 (en) 2002-03-15 2002-03-15 Distribution network
    US10/378,849 US20030173831A1 (en) 2002-03-15 2003-03-05 Power distribution network
    RU2003107070A RU2321129C2 (en) 2002-03-15 2003-03-14 Distributing power network
    CNB031199658A CN100365902C (en) 2002-03-15 2003-03-14 Energy distribution network

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP20020405200 EP1347482B1 (en) 2002-03-15 2002-03-15 Distribution network

    Publications (2)

    Publication Number Publication Date
    EP1347482A1 true EP1347482A1 (en) 2003-09-24
    EP1347482B1 EP1347482B1 (en) 2006-10-04

    Family

    ID=27771978

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP20020405200 Revoked EP1347482B1 (en) 2002-03-15 2002-03-15 Distribution network

    Country Status (6)

    Country Link
    US (1) US20030173831A1 (en)
    EP (1) EP1347482B1 (en)
    CN (1) CN100365902C (en)
    AT (1) ATE341829T1 (en)
    DE (1) DE50208334D1 (en)
    RU (1) RU2321129C2 (en)

    Families Citing this family (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US9054530B2 (en) 2013-04-25 2015-06-09 General Atomics Pulsed interrupter and method of operation
    CN110224379B (en) * 2018-03-01 2021-07-27 郑州大学 High-voltage direct-current circuit breaker based on vacuum and series connection of SF6 arc extinguish chambers

    Citations (1)

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    DE10022415A1 (en) * 1999-10-09 2001-05-03 Abb Patent Gmbh High voltage switching device has two switching units, one designed for dielectric loads and the other for short circuits or arcs

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    US4087664A (en) * 1975-08-29 1978-05-02 I-T-E Imperial Corporation Hybrid power circuit breaker
    US4204101A (en) * 1977-06-22 1980-05-20 Gould Inc. Hybrid circuit breaker with varistor in parallel with vacuum interrupter
    JPH06310000A (en) * 1993-04-20 1994-11-04 Hitachi Ltd Grounding switch
    DE19511168A1 (en) * 1995-03-28 1996-10-02 Abb Management Ag Switching device
    GB2341737B (en) * 1998-09-17 2003-03-05 Alstom Uk Ltd Fault protection apparatus
    DE19912022B4 (en) * 1999-03-17 2009-02-12 Abb Ag High-voltage switching device with series connection of at least two vacuum switching chambers and method for operating the high-voltage sounding device
    DE19958646C2 (en) * 1999-12-06 2001-12-06 Abb T & D Tech Ltd Hybrid circuit breakers
    JP3799924B2 (en) * 2000-01-11 2006-07-19 株式会社日立製作所 Power circuit breaker and power plant electrical circuit device

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    Also Published As

    Publication number Publication date
    CN100365902C (en) 2008-01-30
    EP1347482B1 (en) 2006-10-04
    CN1445899A (en) 2003-10-01
    ATE341829T1 (en) 2006-10-15
    RU2321129C2 (en) 2008-03-27
    US20030173831A1 (en) 2003-09-18
    DE50208334D1 (en) 2006-11-16

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