EP0239783A2 - Installation d'interrupteur électrique pour haute tension - Google Patents

Installation d'interrupteur électrique pour haute tension Download PDF

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Publication number
EP0239783A2
EP0239783A2 EP87102568A EP87102568A EP0239783A2 EP 0239783 A2 EP0239783 A2 EP 0239783A2 EP 87102568 A EP87102568 A EP 87102568A EP 87102568 A EP87102568 A EP 87102568A EP 0239783 A2 EP0239783 A2 EP 0239783A2
Authority
EP
European Patent Office
Prior art keywords
switch
switching device
interrupter
voltage
voltages according
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
EP87102568A
Other languages
German (de)
English (en)
Other versions
EP0239783A3 (fr
Inventor
Karl Dipl.-Ing. Stegmüller (FH)
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.)
Schneider Electric Sachsenwerk GmbH
Original Assignee
Sachsenwerk Licht und Kraft AG
AEG Sachsenwerk 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 Sachsenwerk Licht und Kraft AG, AEG Sachsenwerk GmbH filed Critical Sachsenwerk Licht und Kraft AG
Publication of EP0239783A2 publication Critical patent/EP0239783A2/fr
Publication of EP0239783A3 publication Critical patent/EP0239783A3/fr
Ceased legal-status Critical Current

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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
    • H01H33/60—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
    • H01H33/122—Load break switches both breaker and sectionaliser being enclosed, e.g. in SF6-filled container
    • 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
    • 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
    • H01H2033/6667—Details concerning lever type driving rod arrangements

Definitions

  • the invention relates to an electrical switching device for high switching voltages according to the preamble of the first claim.
  • Such switches have hitherto become known as breakers for direct current circuits.
  • DE OS 23 50 584 describes a DC power switching device that works with voltage dividers, in which a first circuit breaker, which can be designed as a vacuum switch, in series with a parallel circuit comprising a second circuit breaker, which can be an SF6 switch, and one electronic switch.
  • the known switching device enables a current interruption at a return voltage that is greater than the dielectric strength of each of the two circuit breakers, essentially controlled by the current-voltage characteristic of the electronic switch in conjunction with capacitors lying in parallel with the switches
  • a switchgear for interrupting high-voltage direct current has also become known, in which a series connection of a vacuum and a gas jet switch is provided, to which the Voltage control, a voltage-dependent resistor or a capacitor are connected in parallel.
  • the ability of the vacuum switch to interrupt currents when the current is steep and the return voltage is used, and on the other hand the high dielectric strength of SF6 switches, which they have in the low-frequency range of the return voltage, is used.
  • the two switches open at the same time, and the capacitor in parallel with the SF6 switch causes a delayed rise in the return voltage.
  • the known switching devices have a relatively complex structure because they use additional switching devices and control elements in addition to the two circuit breakers. Both circuit breakers also work synchronously and are charged with arc times of the same length.
  • DE-OS 29 34 776 medium-voltage switch disconnectors consist of a vacuum interrupter and an air circuit breaker.
  • the vacuum switch height is designed so that it can withstand the interruption of operating currents with inductive and capacitive. citing recurring voltages, while the air disconnect switch only has to open the de-energized high-stress isolating section.
  • the invention has for its object to provide a particularly cost-effective switching device with a small space requirement and a long service life, with which the currents that are essential for power switchgear, particularly in line operation, can be safely interrupted even with high values of the transient voltage in relation to the line voltages.
  • the switching device should also be possible to switch off all fault currents in networks with low short-circuit power.
  • the switching device should also be particularly suitable for installation in switchgear encapsulated on all sides and insulated with gas or liquid.
  • the time profile of the load characteristic curve LS 1 starting at the contact separation KT 1 of the switch S 1 is due to a steep increase in the first milliseconds and a peak value reached after about 10 ms, which for load switch systems, for example, is about twice the phase voltage Up h ( Peak value) should be marked.
  • the contact separation KT 2 of the switch S 2 is later by the interval ⁇ t; the associated load characteristic curve LS 2 begins at time KT 2, it increases linearly with a comparatively low slope to a final value that is significantly greater than that of LS 1.
  • the maximum value of the load characteristic curve LS 1 is in turn significantly higher than the switching voltages U WL ' occurring in the first interrupting phase in a three-phase system when load currents i L are provided with inductive components, as can also be seen from FIG. 1.
  • load currents are therefore interrupted by switch S 1 alone.
  • Inexpensive vacuum circuit breakers with a small nominal voltage can advantageously be used for this.
  • Vacuum load switches with a nominal voltage of 7.2 kV or 12 kV are suitable for use in networks with a nominal voltage of 24 kV.
  • ⁇ t is set in the order of magnitude of the arc time that occurs when inductive currents are interrupted and is several milliseconds.
  • FIG. 2b shows the temporal sequence of movements of the two switches S 1 and S 2 with x 1 as the contact path of the switch 1 and x 2 as the contact path of the switch 2.
  • a small vacuum load switch is provided as switch S 1 with a low dielectric strength in relation to the operating voltage of the system, which is controlled by a drive S 11.
  • Load switches of simple design which work with a high-quality insulating medium, such as SF6, N 2 or switch oil, can be provided as switch S 2. They are actuated via the crank mechanism S 21 by a drive, not shown.
  • the switch S 2 Since the switch S 2 opens later according to the inventive concept by the time difference dt, it is not loaded by weak inductive currents or only briefly in the last quenching phases. This also applies to the interruption of capacitive currents effective arc time, as can be seen from Figure 1, in the first quenching phase only in the falling part of the current i c . In many cases, the switch S 2 will therefore not need an actual extinguishing device. However, in order to be able to promise the longest possible maintenance intervals for the entire switching device, it is advisable to equip the switching contacts of switch S 2 with contact parts 21 and 22 made of erosion-resistant material. (Figure 5).
  • the insulating medium of the switch S 2 can simultaneously be used to increase the external insulation strength of the switch S 1. This makes it possible to use listed vacuum switches with a relatively low nominal voltage for S 1. Since the arc load in switch S 2 is very low due to the contact opening being delayed by Llt, there is no significant reduction in the insulating capacity of the switching device even after many switching operations.
  • the drives of the switches S 1 and S 2 are synchronized via known mechanical or electrical means, which are not shown because they are not essential to the invention, in such a way that the contact openings differ by the time interval dt.
  • FIGS. 3 and 4 each show a sequence of the positions of the switches S 1 and S 2 which are characteristic when a partially inductive load current i L or a capacitive current i c is interrupted.
  • switch S 1 has opened while switch S 2 is still closed, an arc Li is burning at the electrodes of switch S 1 (see FIG. 1).
  • the switch position IIIb is shortly after the contact separation KT 2 of the switch S 2, the current i c has not yet been interrupted by the switch S 1 been. Arcs Li therefore burn in both switches. After the next zero crossing, i c is interrupted, the switches S 1 and S 2 connected in series withstand the peak value ⁇ We of the capacitive switching voltage.
  • the idea of the invention of the gradual interruption of different types of load cases in consumer networks can also be applied sensibly with other coordination of the switching voltages to the load characteristics. So it can be advantageous in some cases to set the upper limit of the characteristic curve LS 1 to a value that is greater than 2.5 x ⁇ ph , while after the contact separation of switch S 2 additional faults with earth faults are interrupted with even greater switching voltages. With an appropriate design of the voltage values, the switching device according to the invention can also be used to advantage for single or two-phase networks.
  • the switches S 1 and S 2 can be combined in a combined switching device with a common drive.
  • 5 shows in a three-field circuit breaker system with the switches X, Y and Z how the switch S 1 is integrated as a vacuum switch in the switch S 2 provided with a swivel arm 13.
  • the switched-on position I of the switching device with a fixed contact 11 which is connected to the busbar 12, the swivel arm 13 with its contact piece 14, the vacuum load switch 15 arranged in the swivel arm, and the fixed fulcrum contact 16, which connects the switch to a bushing 17 or a socket of a high-voltage connector, shown schematically.
  • the fulcrum contact 16 carries the fulcrum 18 of the swivel arm 13 and a link 19 with which the opening movement of the vacuum switch 15 is controlled so that it takes place in its essential part before the galvanic separation of the swivel arm 13 from the fixed contact 11.
  • the switching device In the middle switch Y, the switching device can be seen in a position which corresponds to the position IIIb in FIG. 4 shortly before the interruption of a capacitive current.
  • the fixed contact 11 and the swivel arm 13 can be reinforced by the contact parts 21 and 22 made of erosion-resistant contact material.
  • the switch Z is shown in the open position of the switching device. (Position IV on Figure 4).
  • the switching device just described is preferably used with at least three three-pole switching units in a completely encapsulated, gas- or liquid-insulated switchgear assembly, the encapsulation 23, as well as a moisture absorber 24, which is recommended for SF6-insulated systems, also being indicated in FIG. 5 is.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
EP87102568A 1986-04-04 1987-02-24 Installation d'interrupteur électrique pour haute tension Ceased EP0239783A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3611270 1986-04-03
DE3611270A DE3611270C2 (de) 1986-04-04 1986-04-04 Elektrische Schalteinrichtung für hohe Schaltspannungen

Publications (2)

Publication Number Publication Date
EP0239783A2 true EP0239783A2 (fr) 1987-10-07
EP0239783A3 EP0239783A3 (fr) 1989-12-06

Family

ID=6297896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102568A Ceased EP0239783A3 (fr) 1986-04-04 1987-02-24 Installation d'interrupteur électrique pour haute tension

Country Status (4)

Country Link
US (1) US4814559A (fr)
EP (1) EP0239783A3 (fr)
CA (1) CA1289995C (fr)
DE (1) DE3611270C2 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2681185A1 (fr) * 1991-09-11 1993-03-12 Alsthom Gec Dispositif de coupure sans passage naturel par zero du courant.
FR2711447A1 (fr) * 1993-10-19 1995-04-28 Gec Alsthom T & D Sa Disjoncteur à haute tension capable de couper des courants de défaut à passage par zéro retardé.
WO2003058661A1 (fr) * 2002-01-12 2003-07-17 Abb T & D Technologies Ltd. Systeme de coupe-circuit haute tension
EP1870916A1 (fr) * 2006-06-23 2007-12-26 Areva T&D SA Actionnement par came cylindrique d'un disjoncteur sectionneur d'alternateur
WO2012146517A1 (fr) * 2011-04-29 2012-11-01 Siemens Aktiengesellschaft Interrupteur
WO2015082306A1 (fr) * 2013-12-04 2015-06-11 Siemens Aktiengesellschaft Sectionneur à coupure en charge à tension alternative pour caténaires d'un réseau d'alimentation en courant de traction et procédé permettant de faire fonctionner un sectionneur à coupure en charge à tension alternative
US9269514B2 (en) 2011-12-21 2016-02-23 Alstom Technology Ltd. Device for protection against particles generated by an electric switching arc
US9443666B2 (en) 2012-10-02 2016-09-13 Alstom Technology Ltd. Electrical contact device of the contact finger type with a strong nominal current
DE102023209613A1 (de) * 2023-09-29 2025-04-03 Siemens Energy Global GmbH & Co. KG Anordnung von Vakuumschaltröhren zum Schalten von Hochspannungen

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DE3832493A1 (de) * 1988-09-22 1990-03-29 Siemens Ag Vakuumschaltroehre, eine solche schaltroehre enthaltender lasttrennschalter und verfahren zum betrieb eines solchen lasttrennschalters
DE4015979C2 (de) * 1990-05-18 1998-04-30 Sachsenwerk Ag Schalterkombination für Lastschaltanlagen
FR2682807B1 (fr) * 1991-10-17 1997-01-24 Merlin Gerin Disjoncteur electrique a deux cartouches a vide en serie.
JP2773510B2 (ja) * 1992-02-12 1998-07-09 三菱電機株式会社 ガス絶縁開閉装置
DE4211155A1 (de) * 1992-03-31 1993-10-07 Siemens Ag Gasisolierte Schaltanlage mit einem mehrpoligen Vakuumschalter und einem mehrpoligen Lasttrennschalter
US5347166A (en) * 1993-02-01 1994-09-13 Electric Power Research Institute Apparatus and method for switching high power levels
US5420495A (en) * 1993-04-19 1995-05-30 Electric Power Research Institute, Inc. Transmission line power flow controller
DE4405206A1 (de) * 1994-02-18 1995-08-24 Abb Research Ltd Schaltvorrichtung
US5483032A (en) * 1994-03-30 1996-01-09 Trayer; Frank C. High voltage load interrupter with safety system
GB2300305B (en) * 1995-04-27 1999-04-28 Gec Alsthom Ltd Circuit interrupter arrangement
US5661280A (en) * 1995-08-02 1997-08-26 Abb Power T&D Company Inc. Combination of a gas-filled interrupter and oil-filled transformer
DE19608765B4 (de) * 1996-03-07 2006-06-29 Abb Patent Gmbh Elektrische Schaltvorrichtung
DE19904178A1 (de) * 1999-02-03 2000-08-10 Alstom Sachsenwerk Gmbh Schaltgerät einer Schaltanlage
KR100319407B1 (ko) * 1999-10-07 2002-01-05 이종수 배전용 개폐기기의 아크 소호장치
DE10022415A1 (de) * 1999-10-09 2001-05-03 Abb Patent Gmbh Hochspannungsschaltgerät mit Serienschaltung von mindestens zwei Schaltgeräten und Verfahren zum Betrieb eines Hochspannungsschaltgerätes
JP3799924B2 (ja) 2000-01-11 2006-07-19 株式会社日立製作所 電力用遮断器および発電所電気回路装置
DE10016950A1 (de) * 2000-04-05 2001-10-11 Abb Hochspannungstechnik Ag Zu Verfahren zum Abschalten eines Kurzschlussstroms im generatornahen Bereich
US6600124B1 (en) * 2001-02-28 2003-07-29 Mcgraw-Edison Company Safety interlock between a vacuum interrupter and a disconnect switch
DE10157140B4 (de) * 2001-11-21 2011-02-24 Abb Ag Hybridschalter
DE10351948A1 (de) * 2003-11-07 2005-06-09 Abb Patent Gmbh Mittelspannungsschaltanlage
FR2877136B1 (fr) * 2004-10-27 2006-12-15 Areva T & D Sa Cinematique d'entrainement dans un disjoncteur hybride
DE102005002139B4 (de) * 2005-01-13 2007-01-25 Siemens Ag Dreistellungsschalter mit Kurvenscheibe
JP4682039B2 (ja) * 2005-12-28 2011-05-11 株式会社日立製作所 開閉装置
FR2906642B1 (fr) * 2006-09-29 2008-12-19 Areva T & D Sa Actionnement par came cylindrique des contacts d'une chambre de coupure a double mouvement.
WO2011147717A1 (fr) * 2010-05-25 2011-12-01 Siemens Aktiengesellschaft Commutateur de rupture de charge
DE102011078650A1 (de) * 2011-07-05 2013-01-10 Siemens Aktiengesellschaft Schaltvorrichtung
DE102013210136A1 (de) 2013-05-30 2014-12-04 Siemens Aktiengesellschaft Elektrisches Schaltgerät
CN103489704B (zh) * 2013-09-25 2015-12-16 苏州朗格电气有限公司 一种真空断路器操作装置
CN108599748B (zh) * 2018-03-23 2022-04-22 加码技术有限公司 一种开关元件保护电路、保护方法及保护装置
DE102019102858A1 (de) * 2019-02-05 2019-03-21 Peter Lell Verfahren und Vorrichtung zum dauerhaften Trennen eines Stromkreises mit induktiver Last durch zeitversetztes Schalten zweier in Reihe geschalteter Schalter
ES2995238T3 (en) 2021-03-03 2025-02-07 Abb Schweiz Ag A medium voltage switching apparatus
CN115085037B (zh) * 2022-07-16 2022-12-20 东营金丰正阳科技发展有限公司 一种油田用潜油电泵智能配电柜

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DE2522525A1 (de) * 1975-05-21 1976-12-02 Driescher Eltech Werk Lasttrennschalter, insbesondere fuer den betrieb in einem mittelspannungsbereich
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US4204101A (en) * 1977-06-22 1980-05-20 Gould Inc. Hybrid circuit breaker with varistor in parallel with vacuum interrupter
DE2934776C2 (de) * 1979-08-28 1982-05-06 Siemens AG, 1000 Berlin und 8000 München Mittelspannungslasttrennschalter.
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DE3412399A1 (de) * 1984-04-03 1985-10-10 Sachsenwerk, Licht- und Kraft-AG, 8000 München Dreistellungsschalter

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2681185A1 (fr) * 1991-09-11 1993-03-12 Alsthom Gec Dispositif de coupure sans passage naturel par zero du courant.
EP0532394A1 (fr) * 1991-09-11 1993-03-17 Gec Alsthom Sa Dispositif de coupure sans passage naturel par zéro du courant
FR2711447A1 (fr) * 1993-10-19 1995-04-28 Gec Alsthom T & D Sa Disjoncteur à haute tension capable de couper des courants de défaut à passage par zéro retardé.
WO2003058661A1 (fr) * 2002-01-12 2003-07-17 Abb T & D Technologies Ltd. Systeme de coupe-circuit haute tension
EP1870916A1 (fr) * 2006-06-23 2007-12-26 Areva T&D SA Actionnement par came cylindrique d'un disjoncteur sectionneur d'alternateur
FR2902923A1 (fr) * 2006-06-23 2007-12-28 Areva T & D Sa Actionnement par came cylindrique d'un disjoncteur sectionneur d'alternateur
US7718913B2 (en) 2006-06-23 2010-05-18 Areva T&D Sa Actuation by cylindrical CAM of a circuit-breaker for an alternator
WO2012146517A1 (fr) * 2011-04-29 2012-11-01 Siemens Aktiengesellschaft Interrupteur
US9269514B2 (en) 2011-12-21 2016-02-23 Alstom Technology Ltd. Device for protection against particles generated by an electric switching arc
US9443666B2 (en) 2012-10-02 2016-09-13 Alstom Technology Ltd. Electrical contact device of the contact finger type with a strong nominal current
WO2015082306A1 (fr) * 2013-12-04 2015-06-11 Siemens Aktiengesellschaft Sectionneur à coupure en charge à tension alternative pour caténaires d'un réseau d'alimentation en courant de traction et procédé permettant de faire fonctionner un sectionneur à coupure en charge à tension alternative
DE102023209613A1 (de) * 2023-09-29 2025-04-03 Siemens Energy Global GmbH & Co. KG Anordnung von Vakuumschaltröhren zum Schalten von Hochspannungen

Also Published As

Publication number Publication date
CA1289995C (fr) 1991-10-01
DE3611270A1 (de) 1987-10-08
EP0239783A3 (fr) 1989-12-06
US4814559A (en) 1989-03-21
DE3611270C2 (de) 1995-08-17

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