EP3586347B1 - Arrangement and method for parallel switching of high currents in high-voltage technology - Google Patents

Arrangement and method for parallel switching of high currents in high-voltage technology Download PDF

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Publication number
EP3586347B1
EP3586347B1 EP18716931.3A EP18716931A EP3586347B1 EP 3586347 B1 EP3586347 B1 EP 3586347B1 EP 18716931 A EP18716931 A EP 18716931A EP 3586347 B1 EP3586347 B1 EP 3586347B1
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EP
European Patent Office
Prior art keywords
rated
contact
arrangement
current
contacts
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.)
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Application number
EP18716931.3A
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German (de)
French (fr)
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EP3586347A1 (en
Inventor
Lutz-Rüdiger JÄNICKE
Jörg Teichmann
Nils Werning
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 Energy Global GmbH and Co KG
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Siemens Energy Global GmbH and Co KG
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Publication of EP3586347A1 publication Critical patent/EP3586347A1/en
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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
    • H01H33/02—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
    • 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
    • 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
    • H01H33/42—Driving mechanisms
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
    • H01H33/74—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber wherein the break is in gas
    • 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
    • H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
    • H01H33/596—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle for interrupting dc

Definitions

  • the invention relates to an arrangement and a method for switching high currents in high-voltage technology for one pole, having at least one first and at least one second contact.
  • a contact has at least two contact pieces which are in electrical and/or mechanical contact with one another in the closed switching state.
  • a high-voltage circuit breaker comprises two contacts, a first and a second contact, each with two contact pieces.
  • the first contact is arranged as the main switching point in an insulating housing.
  • the second contact is connected in series with a resistor as an auxiliary switching point and is arranged together with the resistor in an insulating housing.
  • the resistor is used as an on-resistance when switching. If both contacts are open, the second contact with resistance, ie the auxiliary switching point, is closed first, while the first contact, ie the main switching point, is open. The current flow through the auxiliary switching point is limited via the resistor.
  • auxiliary switching point When the main switching point is closed, the auxiliary switching point is bypassed and the current essentially flows via the main switching point, which is designed as a rated current contact. Furthermore, rated current contact means that the contact is designed to carry high current intensities. Limiting the current through the auxiliary switching point with the help of the resistor in series with the auxiliary switching point allows the auxiliary switching point to be designed for low currents.
  • the maximum current flow via the arrangements for switching high currents, and thus the switching capacity of the high-voltage circuit breaker, is essentially determined by the rated current contact.
  • the second contact is resistive, i. H. the auxiliary switching point, through the first contact, d. H. the rated current contact, bridged.
  • An increase in the maximum current flow and the maximum voltage to be switched by the high-voltage circuit breaker are essentially limited by the constructive options for the rated current contact.
  • the object of the present invention is to specify an arrangement and a method for switching high currents in high-voltage technology.
  • it is an object to increase the maximum current flow and/or the maximum voltage to be switched in a simple and cost-effective manner compared to switching arrangements that are known from the prior art.
  • An arrangement according to the invention for switching high currents in high-voltage technology for one pole comprises at least one first and at least one second contact, with one contact having at least two contact pieces.
  • the contact pieces of a contact are in electrical and/or mechanical contact with one another in the closed switching state.
  • the at least one first and the at least one second contact are each rated current contacts, which are connected in parallel to one another.
  • Rated current contacts means that the contacts are designed as contacts with a high current-carrying capacity, in particular for short-circuit currents in the range greater than 1 to 100 kA, with switching voltages of up to 1200 kV.
  • the design of the at least two contacts connected in parallel as rated current contacts makes it possible to increase the maximum possible current compared to known switching arrangements from the prior art, in which only one rated current contact is used per pole and in which arcing or auxiliary switching points are used which are connected in series with a resistor and only have a lower current-carrying capacity.
  • the arrangement according to the invention is designed in particular for switching direct current.
  • the rated current contact pieces can be switched with a switching sequence which opens a second rated current contact includes when switching the first rated current contact.
  • At least one first contact and at least one second contact can be arranged in a common housing.
  • a common housing saves costs and weight and leads to a compact structure.
  • the current flow through the second rated current contact can correspond to 20 to 90%, in particular at least 40%, of the current flow through the first rated current contact.
  • a high current-carrying capacity of the arrangement as a whole is possible, it being possible in particular for a second contact to dispense with a blast nozzle and an arcing contact.
  • the at least one second rated current contact can always be in the open switching state, with the advantages described above.
  • the housing can comprise an insulator, in particular an insulator made of silicone and/or ceramic and/or composite material with ribs on the outside. Ribbed insulators have a high leakage current distance on the outside and result in good electrical insulation. Silicone and ceramic are inexpensive, easy to manufacture, and have good electrical insulator properties.
  • the arrangement can be T-shaped and comprise a common electrically insulating support column, in particular with a switching rod movably arranged inside the Support column and/or kinematically connected, in particular with a common drive.
  • the T-shaped arrangement can comprise two, in particular tubular, insulators arranged essentially perpendicularly to the support column in opposite directions.
  • the insulators can be arranged with the respective longitudinal axis substantially on a common axis and each insulator can each comprise at least two rated current contacts. This results in at least two pairs of rated current contacts connected in parallel, it being possible for the two pairs to be connected in series one behind the other.
  • the parallel connection of rated current contacts increases the current-carrying capacity of the arrangement and the series connection of the rated current contacts increases the switchable voltage of the arrangement compared to a single rated current contact of the same design.
  • the result is a cost-effective, simple construction of the arrangement with high current-carrying capacity and high switching voltage or dielectric strength in the open switching state.
  • the rated current contacts can be kinematically coupled to one another via at least one gear, for converting and transmitting the switching movement, with switching of the respective second rated current contact when the associated first rated current contact is open.
  • the transmission can transmit a switch-on movement, provided by a common drive, to the at least one first rated current contact, in particular with a time delay to the at least one second rated current contact or simultaneously to all rated current contacts.
  • the transmission provided by a common drive, can transmit a switching-off movement to the at least one second rated current contact, in particular delayed in time to the at least one first rated current contact or simultaneously to all rated current contacts.
  • a main and an auxiliary gear can also be used, in particular each arranged between two series-connected rated current contacts, for the transmission of a switching movement with or without delay to parallel-connected rated current contact pairs. This enables a compact, simple and inexpensive arrangement for switching.
  • the arrangement can be designed for switching DC and/or AC voltages, in particular up to 1200 kV.
  • At least one arcing contact can be assigned to at least one, in particular all rated current contacts, and/or at least one blowing nozzle can be assigned to at least one, in particular all rated current contacts.
  • All contacts can have a blast nozzle and/or an arcing contact, which means that a very high power to be switched or very high currents and/or voltages to be switched can be achieved, with the possibility of extinguishing arcs that occur at each contact.
  • a blast nozzle and/or an arcing contact can also be assigned to a pair of rated current contacts, and another pair of rated current contacts can be formed without an assigned blast nozzle and/or without an assigned arcing contact.
  • the thus simplified structure of the arrangement allows costs and masses to be moved to be reduced when shifting, in particular with the same or increased shifting speed.
  • Four rated current contacts can be included in the arrangement for switching, with two first rated current contacts, which include a blow nozzle on the respective rated current contact, and two second rated current contacts, which are designed without a blow nozzle.
  • the rated current contacts can each consist of two contact pieces, in particular two hollow-cylindrical contact pieces with a diameter of 50 to 200 mm, in particular 80 to 150 mm.
  • the contact pieces can be made of a highly conductive metal, in particular copper, aluminum or steel.
  • the contact surfaces of the contact pieces can be silver-plated and/or include carbon.
  • the arrangement can be comprised of a three-pole switchgear, in particular with one arrangement per pole as described above.
  • the three-pole switchgear can have an arrangement as described above for each pole, with the advantages described above for each pole.
  • a method according to the invention for switching direct and/or alternating current in high-voltage technology includes that at least two rated current contacts connected in parallel are switched in a common housing.
  • At least one first rated current contact can be switched on before at least one second rated current contact. At least one first rated current contact can be switched off after at least one second rated current contact.
  • At least one first rated current contact can be switched on simultaneously with at least one second rated current contact and/or at least one first rated current contact can be switched off simultaneously with at least one second rated current contact.
  • two first rated current contacts can be switched on simultaneously, before or simultaneously with the switching on of two second rated current contacts, and/or the two first rated current contacts can in particular be switched off simultaneously, after or simultaneously with the switching off of the two second rated current contacts, in particular in each case with a first and a second rated current contact in a common housing.
  • FIG 1 a schematic sectional view of an arrangement 1 according to the invention for switching high currents in high-voltage technology is shown.
  • the arrangement in figure 1 is designed for switching for one pole, e.g. B. three-pole design are in particular three juxtaposed inventive Arrangements 1 used.
  • the cutting plane of figure 1 through the array 1 runs along the height of the array 1 and perpendicular to connection lines, which for the sake of simplicity are not shown in the figures.
  • the arrangement 1 is on a support frame 5, z. B. in the form of a vertical T or double T-shaped steel beam arranged.
  • a deflection gear 7 is fastened with a drive 6, which is mounted in particular on the side.
  • the drive 6 can, for. B. in the form of a motor and / or a spring-loaded drive.
  • the drive energy or drive movement when shifting is provided by the drive 6 and transmitted to switching contacts via a kinematic chain 13 .
  • the kinematic chain 13 includes in particular the deflection gear 7, a shift rod 11 and a gear head 8.
  • the switching rod 11 is arranged and movably mounted in the interior along the longitudinal axis of a support column 10, in particular in the form of a ribbed insulator made of ceramic, composite material and/or silicone.
  • the support column 10 is arranged on the deflection gear 7 with the longitudinal axis collinear to the longitudinal axis of the support frame 5 .
  • the gear head 8 is arranged on the upper end of the support column.
  • FIG 2 is the inventive arrangement 1 of figure 1 shown schematically in a sectional view from one side, which is perpendicular to the side view of FIG figure 1 extends.
  • the arrangement 1 is T-shaped, with elongate, in particular ribbed, insulator housings 4, which are arranged on two opposite sides of the support column 10, as arms leading away perpendicularly from the support column 10, fastened to the gear head 8.
  • the two insulator housings 4 each comprise a first rated current contact 2 on the inside, as shown in FIG figure 3 is shown, and a second rated current contact 3, as in Figs Figures 2 and 3 shown is, in a common housing.
  • the parallel arrangement of two rated current contacts 2, 3 increases the total current that can flow at a maximum through the arrangement 1 without damaging the arrangement 1 at any one time.
  • the current-carrying capacity of the arrangement 1 is increased.
  • the drive 6 When the arrangement 1 is switched, the drive 6 provides the kinetic energy which is necessary to open or close the contacts 2, 3, ie to drive the movable contact pieces of the contacts 2, 3.
  • the kinetic energy is transmitted to the contacts 2, 3 via the kinematic chain 13.
  • the kinetic energy from the drive 6, in particular a spring-loaded drive is transmitted to the shift rod 11 via the deflection gear 7.
  • the kinetic energy is transmitted from the shift rod 11 to the gear head 8 and, in particular, directly to the first and second rated current contacts 2, 3.
  • Auxiliary gear 9, as in figure 3 shown, may be comprised of the first and second rated current contacts 2, 3, e.g. B.
  • the gear head 8 and/or auxiliary gear 9 are designed to control or regulate temporal differences between the switching of the first rated current contacts 2 and the switching of the second rated current contacts 3.
  • the first rated current contacts 2 are closed first when switching on, after which the second rated current contacts 3 are closed.
  • the second rated current contacts 3 are separated first, then the first rated current contacts 2 are separated.
  • the second rated current contacts 3 are always in the open state when the first rated current contacts 2 are switched.
  • the first rated current contacts 2 are always in the closed state.
  • a current during the switching of the second rated current contacts 3 flow through the first rated current contacts 2 connected in parallel.
  • a deletion of arcs at the second rated current contacts 3 does not have to be done and on quenching devices such.
  • extinguishing nozzles and / or arcing contacts can be omitted for the second rated current contacts 3.
  • An arc which occurs when high currents are switched, can be extinguished at the first rated current contacts 2 .
  • These can be at the first rated current contacts 2 quenching devices such.
  • extinguishing nozzles and / or arcing contacts may be provided.
  • the structure of the second rated current contacts 3 is simplified in the arrangement 1 described above, the mass of which is reduced, and therefore, with a high current-carrying capacity of the arrangement 1, less drive energy is required when switching compared to arrangements known from the prior art.
  • the drive and elements of the kinematic chain 13 can be designed to be smaller, which saves costs compared to an arrangement with rated current contacts 2, 3, in which all rated current contacts 2, 3 have devices for extinguishing arcs.
  • the first and second rated current contacts 2, 3 are closed simultaneously when switching on and/or are separated simultaneously when switching off.
  • the parallel switching of the first and second rated current contacts 2, 3 reduces the current through a rated current contact and thus inhibits the effect of arcing. This eliminates the need for extinguishing devices.
  • quenching devices can alternatively be used on the rated current contacts 2 and/or 3, in particular on all rated current contacts 2.
  • figure 3 is the arrangement 1 of the invention in supervision figure 1 shown schematically in a sectional view along the rated current contacts 2, 3.
  • the rated current contacts 2, 3 are arranged in the insulator housings 4.
  • two first rated current contacts 2 are electrically connected in series one behind the other and between two connection contacts 12 for external current conductors.
  • Parallel to the two series-connected first rated current contacts 2, two second rated current contacts 3 are electrically connected in series one behind the other.
  • the circuit is shown only schematically.
  • Electrical lines in the arrangement 1 according to the invention can run in the insulator housings 4 and gears 8, 9, in particular electrically insulated within an insulator in opposite directions, and/or the rated current contacts 2, 3 can be electrically connected to one another within the insulator housing 4 and gears 8, 9 to be connected.
  • electrical connections 12 can be provided at the ends of the insulator housing 4, via which the rated current contacts 2, 3 are connected analogously to the circuit shown in the figures outside of the insulator housing 4.
  • Other interconnections are also possible, e.g. B. a parallel connection in each case of a first and a second rated current contact 2, 3, connected in series with a further parallel connected first and second rated current contact 2, 3.
  • Electrical lines for an interconnection can lead via the gears 8, 9 or through the gear housing, or be arranged outside of housings, between connection contacts 12.
  • two parallel-connected rated current contacts 2, 3, a first and a second rated current contact 2, 3, are arranged in an insulator housing 4, in particular spatially parallel.
  • Two insulator housings 4, each with two rated current contacts 2, 3 connected in parallel, are in series one behind the other, in particular along arranged along a common longitudinal axis.
  • the two first rated current contact pieces 2 in different insulator housings 4 are connected in series and the two second rated current contact pieces 3 in different insulator housings 4 are connected in series.
  • the two insulator housings 4, each with two rated current contacts 2, 3 per insulator housing 4, are arranged one behind the other, connected via the gears 8, 9, in particular via the gear head 8.
  • the rated current contacts 2, 3 and/or the insulator housing 4 lie with their longitudinal axes in the Essentially in a plane which z. B. is arranged parallel to the ground on which the support frame 5 is placed.
  • a T-shape of the arrangement 1 results, with a perpendicular bisector of the T-shape comprising the support frame 5, the deflection gear 7 with laterally attached drive 6, the support column 10 and the gear head 8.
  • the horizontal of the T-shape results from the two Insulator housings 4, with two rated current contacts 2, 3 per insulator housing 4, one insulator housing 4 being connected to the other insulator housing 4 via the gear head 8.
  • the insulator housing 4 which are shown in the embodiment of the figures, are tubular.
  • the outer surface may be ribbed, which is not shown in the figures for the sake of simplicity.
  • the ribs increase the path along the longitudinal axis of the insulator housing 4 and thus increase the leakage current path between the terminals 12.
  • All rated current contacts 2, 3 can have at least one extinguishing nozzle and/or at least one arcing contact. Alternatively, all rated current contacts 2, 3 can also be designed without an extinguishing nozzle and/or arcing contact. It can also z.
  • the first rated current contacts 2 can be designed with an extinguishing nozzle and/or arcing contact
  • the second rated current contacts 3 can be designed without an extinguishing nozzle and/or arcing contact.
  • the current-carrying parts of different Rated current contacts 2, 3 can be designed with different power line cross-sections and/or in the open state, different rated current contacts 2, 3 can have different distances between the contact pieces.
  • the rated current contacts 2, 3 can also be constructed identically.
  • a control or regulation of different switching times of first and second rated current contacts 2, 3 can be done via the gear 8, 9.
  • the auxiliary gear 9 can bring about later switching on and earlier switching off of the second rated current contacts 3 compared to the first rated current contacts 2 .
  • the gear head and/or gear units of the individual rated current contacts or movable contact pieces can cause the second rated current contacts 3 to be switched on later and to be switched off earlier than the first rated current contacts 2 .
  • the gear head 8 and/or the auxiliary gear 9 can produce synchronous operation of all contacts 2, 3.
  • a control or regulation of the same or different switching times of first and second rated current contacts 2, 3 can take place alternatively or additionally via the position and/or length of the contact gap.
  • the exemplary embodiments described above can be combined with one another and/or can be combined with the prior art.
  • So e.g. B. several shift rods 11, z. B. a shift rod for the gear head 8 and a shift rod 11 for the auxiliary gear 9 can be used.
  • Each contact 2, 3 can be assigned a switching rod 11, or a pair of first and second rated current contacts 2, 3 can each be assigned a switching rod 11. More pairs of contacts 2, 3 can also be included and/or more than two rated current contacts 2, 3 can be connected in parallel and/or in series.
  • the arrangement 1 can be T-shaped, or other shapes such as. B. reversed Have L-shape or I-shape.
  • First and / or second rated current contacts 2, 3 can have quenching devices for quenching arcs, and can with the same or different z.
  • a common drive 6 and/or a deflection gear 7 and/or a support column 10 and/or a shift rod 11 can be provided, or several drives can be provided, e.g. B. one drive per first rated current contacts and one drive per second rated current contacts with other elements of the kinematic chain.
  • a drive can also be provided for each rated current contact, in particular with independent kinematic chains for each rated current contact.
  • the housing in particular the insulator housing 4, can be filled with a switching gas or with an insulating gas, in particular SF 6 or dry air.
  • the support frame 5 can be designed in the form of a T or double T-beam. Other support frames 5 can also be used, in particular made of steel or aluminum. Insulator housing and/or support columns can be tubular, in particular ribbed on the outside, e.g. B. made of silicone, composite materials and / or ceramics. The insulator housing and/or support columns can also have other shapes, e.g. B. conical or spherical shape.
  • the auxiliary gear 9 can be in the gear head 8 or z. B. laterally on the gear head 8 can be arranged. The auxiliary gear 9 can alternatively also z. B. above or below the gear head 8 can be arranged.
  • the gear head 8 can also be designed without an auxiliary gear 9, with only one gear.
  • the arrangement according to the invention can be designed for one pole; more than one arrangement can be arranged, in particular parallel to one another, for a plurality of poles. For switching high currents and/or voltages more than one arrangement according to the invention can be arranged in particular one behind the other.

Description

Die Erfindung betrifft eine Anordnung und ein Verfahren zum Schalten hoher Ströme in der Hochspannungstechnik für einen Pol, mit wenigstens einem ersten und mit wenigstens einem zweiten Kontakt. Ein Kontakt weist wenigstens zwei Kontaktstücke auf, welche im geschlossenen Schaltzustand in elektrischem und/oder mechanischem Kontakt miteinander stehen.The invention relates to an arrangement and a method for switching high currents in high-voltage technology for one pole, having at least one first and at least one second contact. A contact has at least two contact pieces which are in electrical and/or mechanical contact with one another in the closed switching state.

Eine Anordnung zum Schalten hoher Ströme in der Hochspannungstechnik ist z. B. aus der EP 0 024 252 A1 , der EP 0 050 826 A2 , der US 5 367 134 A und der DE 10 2013 114402 A1 bekannt. Dabei umfasst ein Hochspannungs-Leistungsschalter zwei Kontakte, einen ersten und einen zweiten Kontakt, mit jeweils zwei Kontaktstücken. Der erste Kontakt ist als Hauptschaltstelle in einem Isoliergehäuse angeordnet. Der zweite Kontakt ist als Hilfsschaltstelle in Reihe mit einem Widerstand geschaltet und mit dem Widerstand zusammen in einem Isoliergehäuse angeordnet. Der Widerstand wird beim Schalten als Einschaltwiderstand verwendet. Sind beide Kontakte geöffnet, wird zunächst der zweite Kontakt mit Widerstand, d. h. die Hilfsschaltstelle geschlossen, während der erste Kontakt, d. h. die Hauptschaltstelle geöffnet ist. Über den Widerstand wird der Stromfluss durch die Hilfsschaltstelle begrenzt.An arrangement for switching high currents in high-voltage technology is z. B. from the EP 0 024 252 A1 , the EP 0 050 826 A2 , the U.S. 5,367,134 A and the DE 10 2013 114402 A1 famous. In this case, a high-voltage circuit breaker comprises two contacts, a first and a second contact, each with two contact pieces. The first contact is arranged as the main switching point in an insulating housing. The second contact is connected in series with a resistor as an auxiliary switching point and is arranged together with the resistor in an insulating housing. The resistor is used as an on-resistance when switching. If both contacts are open, the second contact with resistance, ie the auxiliary switching point, is closed first, while the first contact, ie the main switching point, is open. The current flow through the auxiliary switching point is limited via the resistor.

Beim Schließen der Hauptschaltstelle wird die Hilfsschaltstelle überbrückt und der Strom fließt im Wesentlichen über die Hauptschaltstelle, welche als Nennstromkontakt ausgebildet ist. Nennstromkontakt bedeutet im Weiteren, dass der Kontakt ausgebildet ist, große Stromstärken zu tragen. Die Begrenzung der Stromstärke über die Hilfsschaltstelle, mit Hilfe des Widerstands in Reihe zur Hilfsschaltstelle, ermöglicht die Auslegung der Hilfsschaltstelle für geringe Stromstärken.When the main switching point is closed, the auxiliary switching point is bypassed and the current essentially flows via the main switching point, which is designed as a rated current contact. Furthermore, rated current contact means that the contact is designed to carry high current intensities. Limiting the current through the auxiliary switching point with the help of the resistor in series with the auxiliary switching point allows the auxiliary switching point to be designed for low currents.

Dadurch können geringere Durchmesser der Kontaktstücke der Hilfsschaltstelle und somit geringere Massen verwendet werden, welche leichter beschleunigt und somit schneller geschaltet werden können, verglichen mit Nennstromkontakten. Analog Hochspannungs-Leistungsschaltern mit Lichtbogen- und Nennstromkontakten, findet im eingeschalteten Zustand ein Stromfluss im Wesentlichen über den Nennstromkontakt statt, und die Hilfsschaltstelle in Reihe zum Widerstand geschaltet, dient der Verringerung von Lichtbögen beim Schaltvorgang. Ein Schalten des ersten Kontakts, d. h. des Nennstromkontakts, erfolgt immer bei geschlossenem zweitem Kontakt, d. h. bei geschlossener Hilfsschaltstelle.As a result, smaller diameters of the contact pieces of the auxiliary switching point and thus smaller masses can be used, which can be accelerated more easily and thus switched more quickly, compared to rated current contacts. Similar to high-voltage circuit breakers with arcing and rated current contacts, when switched on, a current flow essentially takes place via the rated current contact, and the auxiliary switching point connected in series with the resistor serves to reduce arcing during the switching process. A switching of the first contact, i. H. of the rated current contact, always takes place when the second contact is closed, i. H. when the auxiliary switching point is closed.

Der maximale Stromfluss über die Anordnungen zum Schalten hoher Ströme, und somit das Schaltvermögen des Hochspannungs-Leistungsschalters, wird im Wesentlichen durch den Nennstromkontakt bestimmt. Im eingeschalteten Zustand ist der zweite Kontakt mit Widerstand, d. h. die Hilfsschaltstelle, durch den ersten Kontakt, d. h. den Nennstromkontakt, überbrückt. Eine Erhöhung des maximalen Stromflusses und der maximal zu schaltenden Spannung des Hochspannungs-Leistungsschalters, sind im Wesentlichen durch die konstruktiven Möglichkeiten für den Nennstromkontakt begrenzt.The maximum current flow via the arrangements for switching high currents, and thus the switching capacity of the high-voltage circuit breaker, is essentially determined by the rated current contact. In the on state, the second contact is resistive, i. H. the auxiliary switching point, through the first contact, d. H. the rated current contact, bridged. An increase in the maximum current flow and the maximum voltage to be switched by the high-voltage circuit breaker are essentially limited by the constructive options for the rated current contact.

Aufgabe der vorliegenden Erfindung ist es, eine Anordnung und ein Verfahren zum Schalten hoher Ströme in der Hochspannungstechnik anzugeben. Insbesondere ist es Aufgabe, einfach und kostengünstig den maximalen Stromfluss und/oder die maximal zu schaltende Spannung gegenüber Anordnungen zum Schalten zu erhöhen, welche aus dem Stand der Technik bekannt sind.The object of the present invention is to specify an arrangement and a method for switching high currents in high-voltage technology. In particular, it is an object to increase the maximum current flow and/or the maximum voltage to be switched in a simple and cost-effective manner compared to switching arrangements that are known from the prior art.

Die angegebene Aufgabe wird erfindungsgemäß durch eine Anordnung zum Schalten hoher Ströme in der Hochspannungstechnik für einen Pol mit den Merkmalen gemäß Patentanspruch 1, einer Anordnung zum Schalten mit den Merkmalen gemäß Patentanspruch 12, und/oder durch ein Verfahren zum Schalten von Gleich- und/oder Wechselstrom in der Hochspannungstechnik, insbesondere unter Verwendung der zuvor beschriebenen Anordnung, gemäß Patentanspruch 13 gelöst. Vorteilhafte Ausgestaltungen der erfindungsgemäßen Anordnung zum Schalten hoher Ströme in der Hochspannungstechnik und/oder des Verfahrens zum Schalten von Gleich- und/oder Wechselstrom in der Hochspannungstechnik, insbesondere unter Verwendung der zuvor beschriebenen Anordnung, sind in den Unteransprüchen angegeben. Dabei sind Gegenstände der Hauptansprüche untereinander und mit Merkmalen von Unteransprüchen sowie Merkmale der Unteransprüche untereinander kombinierbar.The stated object is achieved according to the invention by an arrangement for switching high currents in high-voltage technology for one pole with the features according to patent claim 1, an arrangement for switching with the features according to patent claim 12, and/or by a method for switching direct and/or Alternating current in high-voltage technology, in particular solved using the arrangement described above, according to claim 13. Advantageous configurations of the arrangement according to the invention for switching high currents in high-voltage technology and/or the method for switching direct and/or alternating current in high-voltage technology, in particular using the arrangement described above, are specified in the dependent claims. Subjects of the main claims can be combined with one another and with features of the subclaims and features of the subclaims with one another.

Eine erfindungsgemäße Anordnung zum Schalten hoher Ströme in der Hochspannungstechnik für einen Pol umfasst wenigstens einen ersten und wenigstens einen zweiten Kontakt, wobei ein Kontakt wenigstens zwei Kontaktstücke aufweist. Die Kontaktstücke eines Kontakts stehen im geschlossenen Schaltzustand in elektrischem und/oder mechanischem Kontakt miteinander. Der wenigstens eine erste und der wenigstens eine zweite Kontakt sind jeweils Nennstromkontakte, welche parallel zueinander geschaltet sind. Nennstromkontakte bedeutet, dass die Kontakte als Kontakte mit hoher Stromtragfähigkeit ausgebildet sind, insbesondere für Kurzschluss-Ströme im Bereich größer 1 bis 100 kA, bei Schaltspannungen bis 1200 kV.An arrangement according to the invention for switching high currents in high-voltage technology for one pole comprises at least one first and at least one second contact, with one contact having at least two contact pieces. The contact pieces of a contact are in electrical and/or mechanical contact with one another in the closed switching state. The at least one first and the at least one second contact are each rated current contacts, which are connected in parallel to one another. Rated current contacts means that the contacts are designed as contacts with a high current-carrying capacity, in particular for short-circuit currents in the range greater than 1 to 100 kA, with switching voltages of up to 1200 kV.

Die Ausbildung der parallel geschalteten, wenigstens zwei Kontakte als Nennstromkontakte ermöglicht eine Erhöhung des maximal möglichen Stroms gegenüber bekannten Anordnungen zum Schalten aus dem Stand der Technik, bei welchen pro Pol nur ein Nennstromkontakt verwendet wird und bei welchen Lichtbogen- bzw. Hilfsschaltstellen verwendet werden, welche in Reihe mit einem Widerstand geschaltet sind, und die nur eine geringere Stromtragfähigkeit aufweisen. Insbesondere zum Schalten von Gleichstrom ist die erfindungsgemäße Anordnung ausgebildet.The design of the at least two contacts connected in parallel as rated current contacts makes it possible to increase the maximum possible current compared to known switching arrangements from the prior art, in which only one rated current contact is used per pole and in which arcing or auxiliary switching points are used which are connected in series with a resistor and only have a lower current-carrying capacity. The arrangement according to the invention is designed in particular for switching direct current.

Die Nennstromkontaktstücke können mit einer Schaltreihenfolge geschaltet werden, welche einen geöffneten zweiten Nennstromkontakt beim Schalten des ersten Nennstromkontakts umfasst. Dies ermöglicht eine einfache Ausführung des wenigstens einen zweiten Nennstromkontakts ohne Blasdüse zum Löschen von Lichtbögen und/oder ohne Lichtbogenkontakten. Die Anordnung zum Schalten kann dadurch einfach und kostengünstig aufgebaut sein, und ermöglicht ein Schalten mit geringem Kraftaufwand und hohen Schaltgeschwindigkeiten.The rated current contact pieces can be switched with a switching sequence which opens a second rated current contact includes when switching the first rated current contact. This enables a simple design of the at least one second rated current contact without a blast nozzle for extinguishing arcs and/or without arcing contacts. As a result, the arrangement for switching can be constructed simply and cost-effectively, and enables switching with little effort and high switching speeds.

Wenigstens ein erster Kontakt und wenigstens ein zweiter Kontakt können in einem gemeinsamen Gehäuse angeordnet sein. Ein gemeinsames Gehäuse spart Kosten, Gewicht und führt zu einem kompakten Aufbau.At least one first contact and at least one second contact can be arranged in a common housing. A common housing saves costs and weight and leads to a compact structure.

Im eingeschalteten Zustand kann der Stromfluss über den zweiten Nennstromkontakt 20 bis 90%, insbesondere mindestens 40% des Stromflusses über den ersten Nennstromkontakt entsprechen. Dadurch ist eine hohe Stromtragfähigkeit der Anordnung im Ganzen möglich, wobei insbesondere bei einem zweiten Kontakt auf eine Blasdüse und einen Lichtbogenkontakt verzichtet werden kann.When switched on, the current flow through the second rated current contact can correspond to 20 to 90%, in particular at least 40%, of the current flow through the first rated current contact. As a result, a high current-carrying capacity of the arrangement as a whole is possible, it being possible in particular for a second contact to dispense with a blast nozzle and an arcing contact.

Beim Schalten des wenigstens einen ersten Nennstromkontakts kann der wenigstens eine zweite Nennstromkontakt immer im geöffneten Schaltzustand sein, mit den zuvor beschriebenen Vorteilen.When the at least one first rated current contact is switched, the at least one second rated current contact can always be in the open switching state, with the advantages described above.

Das Gehäuse kann einen Isolator umfassen, insbesondere einen außen gerippten Isolator aus Silikon und/oder aus Keramik und/oder aus Kompositmaterial. Gerippte Isolatoren weisen eine hohe Kriechstromstrecke auf der Außenseite auf und führen zu einer guten elektrische Isolation. Silikon und Keramik sind kostengünstig, einfach herzustellen und weisen gute elektrische Isolatoreigenschaften auf.The housing can comprise an insulator, in particular an insulator made of silicone and/or ceramic and/or composite material with ribs on the outside. Ribbed insulators have a high leakage current distance on the outside and result in good electrical insulation. Silicone and ceramic are inexpensive, easy to manufacture, and have good electrical insulator properties.

Die Anordnung kann T-förmig sein und eine gemeinsame, elektrisch isolierende Stützersäule umfassen, insbesondere mit einer Schaltstange beweglich angeordnet im Inneren der Stützersäule und/oder kinematisch verbunden insbesondere mit einem gemeinsamen Antrieb. Dabei kann die T-förmige Anordnung zwei im Wesentlichen senkrecht zur Stützersäule in entgegengesetzte Richtungen angeordnete, insbesondere rohrförmige Isolatoren umfassen. Die Isolatoren können mit der jeweiligen Längsachse im Wesentlichen auf einer gemeinsamen Achse angeordnet sein und jeder Isolator kann jeweils wenigstens zwei Nennstromkontakte umfassen. Somit ergeben sich wenigstens zwei Paare von parallel geschalteten Nennstromkontakten, wobei die zwei Paare in Reihe hintereinander geschaltet sein können. Die Parallelschaltung von Nennstromkontakten erhöht die Stromtragfähigkeit der Anordnung und die Reihenschaltung der Nennstromkontakte erhöht die schaltbare Spannung der Anordnung gegenüber einem gleich aufgebauten einzelnen Nennstromkontakt. Es ergibt sich ein kostengünstiger, einfacher Aufbau der Anordnung mit hoher Stromtragfähigkeit und hoher Schaltspannung bzw. Spannungsfestigkeit im geöffneten Schaltzustand.The arrangement can be T-shaped and comprise a common electrically insulating support column, in particular with a switching rod movably arranged inside the Support column and/or kinematically connected, in particular with a common drive. In this case, the T-shaped arrangement can comprise two, in particular tubular, insulators arranged essentially perpendicularly to the support column in opposite directions. The insulators can be arranged with the respective longitudinal axis substantially on a common axis and each insulator can each comprise at least two rated current contacts. This results in at least two pairs of rated current contacts connected in parallel, it being possible for the two pairs to be connected in series one behind the other. The parallel connection of rated current contacts increases the current-carrying capacity of the arrangement and the series connection of the rated current contacts increases the switchable voltage of the arrangement compared to a single rated current contact of the same design. The result is a cost-effective, simple construction of the arrangement with high current-carrying capacity and high switching voltage or dielectric strength in the open switching state.

Die Nennstromkontakte können über wenigstens ein Getriebe kinematisch miteinander gekoppelt sein, zur Umwandlung und Übertragung der Schaltbewegung, mit einem Schalten des jeweils zweiten Nennstromkontakts bei geöffnetem zugeordnetem erstem Nennstromkontakt. Das Getriebe kann eine Einschaltbewegung, von einem gemeinsamen Antrieb bereitgestellt, an den wenigstens einen ersten Nennstromkontakt übertragen, insbesondere zeitlich verzögert auf den wenigstens einen zweiten Nennstromkontakt oder zeitlich gleichzeitig auf alle Nennstromkontakte. Eine Ausschaltbewegung kann das Getriebe, von einem gemeinsamen Antrieb bereitgestellt, an den wenigstens einen zweiten Nennstromkontakt übertragen, insbesondere zeitlich verzögert auf den wenigstens einen ersten Nennstromkontakt oder zeitlich gleichzeitig auf alle Nennstromkontakte. Die Verwendung eines Getriebes ermöglicht unterschiedliche Schaltreihenfolgen definiert zu übertragen, mit den zuvor beschriebenen Vorteilen, bei Verwendung von nur einem gemeinsamen Antrieb, wodurch ein einfacher, kostengünstiger Aufbau der Anordnung ermöglicht wird. Es kann auch ein Haupt- und Nebengetriebe verwendet werden, insbesondere jeweils angeordnet zwischen zwei in Reihe geschalteten Nennstromkontakten, zur Übertragung einer Schaltbewegung mit oder ohne Verzögerung auf parallel geschaltete Nennstromkontaktpaare. Dadurch ist eine kompakte, einfache und kostengünstige Anordnung zum Schalten möglich.The rated current contacts can be kinematically coupled to one another via at least one gear, for converting and transmitting the switching movement, with switching of the respective second rated current contact when the associated first rated current contact is open. The transmission can transmit a switch-on movement, provided by a common drive, to the at least one first rated current contact, in particular with a time delay to the at least one second rated current contact or simultaneously to all rated current contacts. The transmission, provided by a common drive, can transmit a switching-off movement to the at least one second rated current contact, in particular delayed in time to the at least one first rated current contact or simultaneously to all rated current contacts. The use of a transmission enables different switching sequences to be transmitted in a defined manner, with the advantages described above, when using only one common drive, resulting in a simpler, more cost-effective design the arrangement is allowed. A main and an auxiliary gear can also be used, in particular each arranged between two series-connected rated current contacts, for the transmission of a switching movement with or without delay to parallel-connected rated current contact pairs. This enables a compact, simple and inexpensive arrangement for switching.

Die Anordnung kann ausgebildet sein zum Schalten von Gleich- und/oder Wechselspannungen, insbesondere bis 1200 kV.The arrangement can be designed for switching DC and/or AC voltages, in particular up to 1200 kV.

Wenigstens einem, insbesondere allen Nennstromkontakten kann wenigstens ein Lichtbogenkontakt zugeordnet sein, und/oder wenigstens einem, insbesondere allen Nennstromkontakten kann wenigstens eine Blasdüse zugeordnet sein. So können alle Kontakte eine Blasdüse und/oder einen Lichtbogenkontakt aufweisen, wodurch eine sehr hohe zu schaltende Leistung bzw. sehr hohe zu schaltende Ströme und/oder Spannungen erreicht werden können, mit der Möglichkeit entstehende Lichtbögen an jedem Kontakt zu löschen. Alternativ kann auch einem Paar an Nennstromkontakten eine Blasdüse und/oder ein Lichtbogenkontakt zugeordnet sein, und ein anderes Paar an Nennstromkontakten ohne zugeordneter Blasdüse und/oder ohne zugeordneten Lichtbogenkontakt ausgebildet sein. Durch den somit vereinfachten Aufbau der Anordnung können Kosten und zu bewegende Massen beim Schalten reduziert werden, insbesondere bei gleicher oder erhöhter Schaltgeschwindigkeit. Vier Nennstromkontakte können von der Anordnung zum Schalten umfasst sein, mit zwei ersten Nennstromkontakten, welche eine Blasdüse am jeweiligen Nennstromkontakt umfassen, und zwei zweiten Nennstromkontakten, welche ohne Blasdüse ausgebildet sind.At least one arcing contact can be assigned to at least one, in particular all rated current contacts, and/or at least one blowing nozzle can be assigned to at least one, in particular all rated current contacts. All contacts can have a blast nozzle and/or an arcing contact, which means that a very high power to be switched or very high currents and/or voltages to be switched can be achieved, with the possibility of extinguishing arcs that occur at each contact. Alternatively, a blast nozzle and/or an arcing contact can also be assigned to a pair of rated current contacts, and another pair of rated current contacts can be formed without an assigned blast nozzle and/or without an assigned arcing contact. The thus simplified structure of the arrangement allows costs and masses to be moved to be reduced when shifting, in particular with the same or increased shifting speed. Four rated current contacts can be included in the arrangement for switching, with two first rated current contacts, which include a blow nozzle on the respective rated current contact, and two second rated current contacts, which are designed without a blow nozzle.

Die Nennstromkontakte können jeweils aus zwei Kontaktstücken bestehen, insbesondere zwei hohlzylinderförmigen Kontaktstücken mit einem Durchmesser von 50 bis 200 mm, insbesondere 80 bis 150 mm. Die Kontaktstücke können aus einem gut leitenden Metall, insbesondere Kuper, Aluminium oder Stahl bestehen.The rated current contacts can each consist of two contact pieces, in particular two hollow-cylindrical contact pieces with a diameter of 50 to 200 mm, in particular 80 to 150 mm. The contact pieces can be made of a highly conductive metal, in particular copper, aluminum or steel.

Die Kontaktflächen der Kontaktstücke können versilbert sein und/oder Carbon umfassen. Dadurch kann verlustarm, d. h. mit geringem Widerstand über Kontakte bei eingeschaltetem Zustand der Anordnung, ein hoher Strom über die Anordnung fließen. Eine hohe Stromtragfähigkeit bei einfachem, kostengünstigem Aufbau der Anordnung wird dadurch gewährleistet.The contact surfaces of the contact pieces can be silver-plated and/or include carbon. As a result, low-loss, i. H. with low resistance across contacts when the device is on, a high current can flow across the device. This ensures a high current-carrying capacity with a simple, cost-effective construction of the arrangement.

Die Anordnung kann von einer dreipoligen Schaltanlage, insbesondere mit einer zuvor beschriebenen Anordnung pro Pol, umfasst sein. Die dreipolige Schaltanlage kann je Pol eine zuvor beschriebene Anordnung aufweisen, mit den zuvor pro Pol beschriebenen Vorteilen.The arrangement can be comprised of a three-pole switchgear, in particular with one arrangement per pole as described above. The three-pole switchgear can have an arrangement as described above for each pole, with the advantages described above for each pole.

Ein erfindungsgemäßes Verfahren zum Schalten von Gleich- und/oder Wechselstrom in der Hochspannungstechnik, insbesondere unter Verwendung einer zuvor beschriebenen Anordnung, umfasst, dass wenigstens zwei parallel geschaltete Nennstromkontakte in einem gemeinsamen Gehäuse geschaltet werden.A method according to the invention for switching direct and/or alternating current in high-voltage technology, in particular using an arrangement described above, includes that at least two rated current contacts connected in parallel are switched in a common housing.

Wenigstens ein erster Nennstromkontakt kann vor wenigstens einem zweiten Nennstromkontakt eingeschaltet werden. Wenigstens ein erster Nennstromkontakt kann nach wenigstens einem zweiten Nennstromkontakt ausgeschaltet werden.At least one first rated current contact can be switched on before at least one second rated current contact. At least one first rated current contact can be switched off after at least one second rated current contact.

Alternativ kann wenigstens ein erster Nennstromkontakt gleichzeitig mit wenigstens einem zweiten Nennstromkontakt eingeschaltet werden und/oder wenigstens ein erster Nennstromkontakt kann gleichzeitig mit wenigstens einem zweiten Nennstromkontakt ausgeschaltet werden.Alternatively, at least one first rated current contact can be switched on simultaneously with at least one second rated current contact and/or at least one first rated current contact can be switched off simultaneously with at least one second rated current contact.

Zwei erste Nennstromkontakte können insbesondere gleichzeitig eingeschaltet werden, vor oder gleichzeitig mit dem Einschalten von zwei zweiten Nennstromkontakten, und/oder die zwei ersten Nennstromkontakte können insbesondere gleichzeitig ausgeschaltet werden, nach oder gleichzeitig mit dem Ausschalten der zwei zweiten Nennstromkontakte, insbesondere jeweils mit einem ersten und einem zweiten Nennstromkontakt in einem gemeinsamen Gehäuse.In particular, two first rated current contacts can be switched on simultaneously, before or simultaneously with the switching on of two second rated current contacts, and/or the two first rated current contacts can in particular be switched off simultaneously, after or simultaneously with the switching off of the two second rated current contacts, in particular in each case with a first and a second rated current contact in a common housing.

Im eingeschalteten Zustand kann der Stromfluss ausschließlich über Nennstromkontakte erfolgen.When switched on, the current flow can only take place via rated current contacts.

Die Vorteile des erfindungsgemäßen Verfahrens zum Schalten von Gleich- und/oder Wechselstrom in der Hochspannungstechnik, insbesondere unter Verwendung einer zuvor beschriebenen Anordnung, gemäß Anspruch 13 sind analog den zuvor beschriebenen Vorteilen der erfindungsgemäßen Anordnung zum Schalten hoher Ströme in der Hochspannungstechnik für einen Pol gemäß Anspruch 1 und umgekehrt.The advantages of the method according to the invention for switching direct and/or alternating current in high-voltage technology, in particular using an arrangement described above, according to claim 13 are analogous to the advantages described above of the arrangement according to the invention for switching high currents in high-voltage technology for one pole according to claim 1 and vice versa.

Im Folgenden wird ein Ausführungsbeispiel der Erfindung schematisch in den Figuren 1 bis 3 dargestellt und nachfolgend näher beschrieben.In the following an embodiment of the invention is shown schematically in the Figures 1 to 3 shown and described in more detail below.

Dabei zeigen die

Figur 1
schematisch in Schnittansicht für einen Pol eine erfindungsgemäße Anordnung 1 zum Schalten hoher Ströme in der Hochspannungstechnik von einer Seite betrachtet, und
Figur 2
schematisch in Schnittansicht die Anordnung 1 der Figur 1, von einer Seite senkrecht zur Ansicht der Figur 1 betrachtet, und
Figur 3
schematisch in Schnittansicht die Anordnung 1 der Figur 1 in Aufsicht betrachtet.
The show
figure 1
schematically in a sectional view for one pole an arrangement 1 according to the invention for switching high currents in high-voltage technology viewed from one side, and
figure 2
schematic sectional view of the arrangement 1 of figure 1 , from a side perpendicular to the view of figure 1 considered, and
figure 3
schematic sectional view of the arrangement 1 of figure 1 viewed under supervision.

In Figur 1 ist schematisch in Schnittansicht eine erfindungsgemäße Anordnung 1 zum Schalten hoher Ströme in der Hochspannungstechnik dargestellt. Die Anordnung in Figur 1 ist zum Schalten für einen Pol ausgelegt, bei z. B. dreipoliger Auslegung werden insbesondere drei nebeneinander angeordnete erfindungsgemäße Anordnungen 1 verwendet. Die Schnittebene der Figur 1 durch die Anordnung 1 verläuft entlang der Höhe der Anordnung 1 und senkrecht zu Anschlussleitungen, welche der Einfachheit halber in den Figuren nicht dargestellt sind. Die Anordnung 1 ist auf einem Traggestell 5, z. B. in Form eines senkrechten T- oder Doppel-T-förmigen Stahlträgers, angeordnet.In figure 1 a schematic sectional view of an arrangement 1 according to the invention for switching high currents in high-voltage technology is shown. The arrangement in figure 1 is designed for switching for one pole, e.g. B. three-pole design are in particular three juxtaposed inventive Arrangements 1 used. The cutting plane of figure 1 through the array 1 runs along the height of the array 1 and perpendicular to connection lines, which for the sake of simplicity are not shown in the figures. The arrangement 1 is on a support frame 5, z. B. in the form of a vertical T or double T-shaped steel beam arranged.

Am oberen Ende des Traggestells 5 ist ein Umlenkgetriebe 7 mit einem insbesondere seitlich angebrachten Antrieb 6 befestigt. Der Antrieb 6 kann z. B. in Form eines Motors und/oder eines Federspeicherantriebs ausgebildet sein. Die Antriebsenergie bzw. Antriebsbewegung beim Schalten wird vom Antrieb 6 bereitgestellt und über eine kinematische Kette 13 auf Schaltkontakte übertragen. Die kinematische Kette 13 umfasst insbesondere das Umlenkgetriebe 7, eine Schaltstange 11 und einen Getriebekopf 8.At the upper end of the support frame 5, a deflection gear 7 is fastened with a drive 6, which is mounted in particular on the side. The drive 6 can, for. B. in the form of a motor and / or a spring-loaded drive. The drive energy or drive movement when shifting is provided by the drive 6 and transmitted to switching contacts via a kinematic chain 13 . The kinematic chain 13 includes in particular the deflection gear 7, a shift rod 11 and a gear head 8.

Die Schaltstange 11 ist im Inneren entlang der Längsachse einer Stützsäule 10, insbesondere in Form eines gerippten Isolators aus Keramik, Kompositmaterial und/oder Silikon, angeordnet und beweglich gelagert. Die Stützsäule 10 ist auf dem Umlenkgetriebe 7, mit der Längsachse kollinear zur Längsachse des Traggestells 5, angeordnet. Auf dem oberen Ende der Stützsäule ist der Getriebekopf 8 angeordnet.The switching rod 11 is arranged and movably mounted in the interior along the longitudinal axis of a support column 10, in particular in the form of a ribbed insulator made of ceramic, composite material and/or silicone. The support column 10 is arranged on the deflection gear 7 with the longitudinal axis collinear to the longitudinal axis of the support frame 5 . The gear head 8 is arranged on the upper end of the support column.

In Figur 2 ist die erfindungsgemäße Anordnung 1 der Figur 1 schematisch in Schnittansicht von einer Seite dargestellt, welche sich senkrecht zur Seitenansicht der Figur 1 erstreckt. Die Anordnung 1 ist T-förmig ausgebildet, mit länglich, insbesondere gerippt ausgebildeten Isolatorgehäusen 4, welche jeweils auf zwei entgegengesetzten Seiten der Stützersäule 10, als Arme senkrecht von der Stützersäule 10 wegführend, am Getriebekopf 8 befestigt, angeordnet sind. Die zwei Isolatorgehäuse 4 umfassen jeweils im Inneren einen ersten Nennstromkontakt 2, wie in Figur 3 gezeigt ist, und einen zweiten Nennstromkontakt 3, wie in den Figuren 2 und 3 gezeigt ist, in einem gemeinsamen Gehäuse. Durch die parallele Anordnung von jeweils zwei Nennstromkontakten 2, 3 erhöht sich der Gesamtstrom, der maximal über die Anordnung 1, ohne Schädigung der Anordnung 1, zu einem Zeitpunkt fließen kann. Die Stromtragfähigkeit der Anordnung 1 ist erhöht.In figure 2 is the inventive arrangement 1 of figure 1 shown schematically in a sectional view from one side, which is perpendicular to the side view of FIG figure 1 extends. The arrangement 1 is T-shaped, with elongate, in particular ribbed, insulator housings 4, which are arranged on two opposite sides of the support column 10, as arms leading away perpendicularly from the support column 10, fastened to the gear head 8. The two insulator housings 4 each comprise a first rated current contact 2 on the inside, as shown in FIG figure 3 is shown, and a second rated current contact 3, as in Figs Figures 2 and 3 shown is, in a common housing. The parallel arrangement of two rated current contacts 2, 3 increases the total current that can flow at a maximum through the arrangement 1 without damaging the arrangement 1 at any one time. The current-carrying capacity of the arrangement 1 is increased.

Der Antrieb 6 stellt beim Schalten der Anordnung 1 die Bewegungsenergie bereit, welche zum Öffnen oder Schließen der Kontakte 2, 3, d. h. zum Antreiben der beweglichen Kontaktstücke der Kontakte 2, 3, notwendig ist. Die Bewegungsenergie wird über die kinematische Kette 13 auf die Kontakte 2, 3 übertragen. Z. B. wird die Bewegungsenergie vom Antrieb 6, insbesondere einem Federspeicherantrieb, über das Umlenkgetriebe 7 auf die Schaltstange 11 übertragen. Von der Schaltstange 11 wird die Bewegungsenergie auf den Getriebekopf 8 übertragen und insbesondere direkt an die ersten und zweiten Nennstromkontakte 2, 3 abgegeben. Hilfsgetriebe 9, wie in Figur 3 gezeigt, können von den ersten und zweiten Nennstromkontakten 2, 3 umfasst sein, um z. B. zeitlich und vom Betrag und/oder der Richtung der Kraft her, unterschiedliche bewegliche Kontaktstücke eines Nennstromkontaktes 2 anzutreiben, insbesondere mit gleichen oder unterschiedlichen Bewegungsprofielen. Der Getriebekopf 8 und/oder Hilfsgetriebe 9 sind ausgebildet zum Steuern oder Regeln zeitlicher Unterschiede zwischen dem Schalten der ersten Nennstromkontakte 2 und dem Schalten der zweiten Nennstromkontakte 3.When the arrangement 1 is switched, the drive 6 provides the kinetic energy which is necessary to open or close the contacts 2, 3, ie to drive the movable contact pieces of the contacts 2, 3. The kinetic energy is transmitted to the contacts 2, 3 via the kinematic chain 13. For example, the kinetic energy from the drive 6, in particular a spring-loaded drive, is transmitted to the shift rod 11 via the deflection gear 7. The kinetic energy is transmitted from the shift rod 11 to the gear head 8 and, in particular, directly to the first and second rated current contacts 2, 3. Auxiliary gear 9, as in figure 3 shown, may be comprised of the first and second rated current contacts 2, 3, e.g. B. in terms of time and the magnitude and/or the direction of the force to drive different movable contact pieces of a rated current contact 2, in particular with the same or different movement profiles. The gear head 8 and/or auxiliary gear 9 are designed to control or regulate temporal differences between the switching of the first rated current contacts 2 and the switching of the second rated current contacts 3.

In einem Ausführungsbeispiel werden die ersten Nennstromkontakte 2 beim Einschalten zuerst geschlossen, danach werden die zweiten Nennstromkontakte 3 geschlossen. Beim Ausschalten werden die zweiten Nennstromkontakte 3 zuerst getrennt, danach werden die ersten Nennstromkontakte 2 getrennt. Somit sind die zweiten Nennstromkontakte 3 immer im geöffneten Zustand, wenn die ersten Nennstromkontakte 2 geschaltet werden. Beim Schalten der zweiten Nennstromkontakte 3 sind die ersten Nennstromkontakte 2 immer im geschlossenen Zustand. Dadurch kann ein Strom während des Schaltens der zweiten Nennstromkontakte 3 über die parallel geschalteten ersten Nennstromkontakte 2 fließen. Ein Löschen von Lichtbögen an den zweiten Nennstromkontakte 3 muss dadurch nicht erfolgen und auf Löscheinrichtungen, wie z. B. Löschdüsen und/oder Lichtbogenkontakte, kann für die zweiten Nennstromkontakte 3 verzichtet werden. Ein Lichtbogen, welcher beim Schalten hoher Ströme auftritt, kann an den ersten Nennstromkontakten 2 gelöscht werden. Dazu können an den ersten Nennstromkontakten 2 Löscheinrichtungen, wie z. B. Löschdüsen und/oder Lichtbogenkontakte, vorgesehen sein.In one embodiment, the first rated current contacts 2 are closed first when switching on, after which the second rated current contacts 3 are closed. When switching off, the second rated current contacts 3 are separated first, then the first rated current contacts 2 are separated. Thus, the second rated current contacts 3 are always in the open state when the first rated current contacts 2 are switched. When switching the second rated current contacts 3, the first rated current contacts 2 are always in the closed state. As a result, a current during the switching of the second rated current contacts 3 flow through the first rated current contacts 2 connected in parallel. A deletion of arcs at the second rated current contacts 3 does not have to be done and on quenching devices such. B. extinguishing nozzles and / or arcing contacts can be omitted for the second rated current contacts 3. An arc, which occurs when high currents are switched, can be extinguished at the first rated current contacts 2 . These can be at the first rated current contacts 2 quenching devices such. B. extinguishing nozzles and / or arcing contacts may be provided.

Der Aufbau der zweiten Nennstromkontakte 3 ist bei der zuvor beschriebenen Anordnung 1 vereinfacht, deren Masse reduziert und somit ist bei hoher Stromtragfähigkeit der Anordnung 1 eine geringere Antriebsenergie beim Schalten notwendig, verglichen mit Anordnungen bekannt aus dem Stand der Technik. Der Antrieb und Elemente der kinematischen Kette 13 können kleiner ausgelegt sein, was Kosten einspart gegenüber einer Anordnung mit Nennstromkontakten 2, 3, bei welcher alle Nennstromkontakte 2, 3 Einrichtungen zum Löschen von Lichtbögen aufweisen.The structure of the second rated current contacts 3 is simplified in the arrangement 1 described above, the mass of which is reduced, and therefore, with a high current-carrying capacity of the arrangement 1, less drive energy is required when switching compared to arrangements known from the prior art. The drive and elements of the kinematic chain 13 can be designed to be smaller, which saves costs compared to an arrangement with rated current contacts 2, 3, in which all rated current contacts 2, 3 have devices for extinguishing arcs.

In einem alternativen Ausführungsbeispiel werden die ersten und zweiten Nennstromkontakte 2, 3 beim Einschalten gleichzeitig geschlossen und/oder beim Ausschalten gleichzeitig getrennt. Durch das parallele Schalten der ersten und zweiten Nennstromkontakte 2, 3 wird der Strom über einen Nennstromkontakt verringert und somit die Wirkung von Lichtbögen gehemmt. Dadurch kann auf Löscheinrichtungen verzichtet werden. Insbesondere bei sehr hohen zu schaltenden Stromstärken können alternativ Löscheinrichtungen an den Nennstromkontakten 2 und/oder 3 verwendet werden, insbesondere an allen Nennstromkontakten 2.In an alternative exemplary embodiment, the first and second rated current contacts 2, 3 are closed simultaneously when switching on and/or are separated simultaneously when switching off. The parallel switching of the first and second rated current contacts 2, 3 reduces the current through a rated current contact and thus inhibits the effect of arcing. This eliminates the need for extinguishing devices. Particularly in the case of very high currents to be switched, quenching devices can alternatively be used on the rated current contacts 2 and/or 3, in particular on all rated current contacts 2.

In Figur 3 ist in Aufsicht die erfindungsgemäße Anordnung 1 der Figur 1 schematisch in Schnittansicht entlang der Nennstromkontakte 2, 3 dargestellt. Die Nennstromkontakte 2, 3 sind in den Isolatorgehäusen 4 angeordnet. Im Ausführungsbeispiel der Erfindung, welches in den Figuren dargestellt ist, sind zwei erste Nennstromkontakte 2 elektrisch in Reihe hintereinander und zwischen zwei Anschlusskontakten 12 für äußere Stromleiter geschaltet. Parallel zu den zwei in Reihe geschalteten ersten Nennstromkontakten 2 sind zwei zweite Nennstromkontakte 3 elektrisch in Reihe hintereinander geschaltet. Die Schaltung ist nur schematisch dargestellt. Elektrische Leitungen in der erfindungsgemäßen Anordnung 1 können in den Isolatorgehäusen 4 und Getrieben 8, 9 verlaufen, insbesondere elektrisch isoliert innerhalb eines Isolators in entgegengesetzte Richtungen, und/oder die Nennstromkontakte 2, 3 können untereinander elektrisch innerhalb der Isolatorgehäuse 4 und Getriebe 8, 9 miteinander verbunden sein.In figure 3 is the arrangement 1 of the invention in supervision figure 1 shown schematically in a sectional view along the rated current contacts 2, 3. The rated current contacts 2, 3 are arranged in the insulator housings 4. In the exemplary embodiment of the invention, which is illustrated in the figures, two first rated current contacts 2 are electrically connected in series one behind the other and between two connection contacts 12 for external current conductors. Parallel to the two series-connected first rated current contacts 2, two second rated current contacts 3 are electrically connected in series one behind the other. The circuit is shown only schematically. Electrical lines in the arrangement 1 according to the invention can run in the insulator housings 4 and gears 8, 9, in particular electrically insulated within an insulator in opposite directions, and/or the rated current contacts 2, 3 can be electrically connected to one another within the insulator housing 4 and gears 8, 9 to be connected.

In den Figuren der Einfachheit halber nicht dargestellt, können jeweils an den Enden der Isolatorgehäuse 4 elektrische Anschlüsse 12 vorgesehen sein, über welche eine Verschaltung der Nennstromkontakte 2, 3 analog der in den Figuren dargestellte Verschaltung, außerhalb der Isolatorgehäuse 4 realisiert wird. Es sind auch andere Verschaltungen möglich, z. B. eine parallele Verschaltung jeweils eines ersten und eines zweiten Nennstromkontakts 2, 3, in Reihe geschaltet mit einem weiteren parallel verschalteten ersten und zweiten Nennstromkontakts 2, 3. Elektrische Leitungen für eine Verschaltung können über die Getriebe 8, 9 bzw. durch Getriebegehäuse führen, oder jeweils außerhalb von Gehäusen angeordnet sein, zwischen Anschlusskontakten 12.Not shown in the figures for the sake of simplicity, electrical connections 12 can be provided at the ends of the insulator housing 4, via which the rated current contacts 2, 3 are connected analogously to the circuit shown in the figures outside of the insulator housing 4. Other interconnections are also possible, e.g. B. a parallel connection in each case of a first and a second rated current contact 2, 3, connected in series with a further parallel connected first and second rated current contact 2, 3. Electrical lines for an interconnection can lead via the gears 8, 9 or through the gear housing, or be arranged outside of housings, between connection contacts 12.

In dem Ausführungsbeispiel der erfindungsgemäßen Anordnung 1, welches in den Figuren dargestellt ist, sind in einem Isolatorgehäuse 4 jeweils zwei parallel geschaltete Nennstromkontakte 2, 3, ein erster und ein zweiter Nennstromkontakt 2, 3, insbesondere räumlich parallel angeordnet. Zwei Isolatorgehäuse 4 mit jeweils zwei parallel geschalteten Nennstromkontakten 2, 3 sind in Reihe hintereinander insbesondere entlang einer gemeinsamen Längsachse angeordnet. Die zwei ersten Nennstromkontaktstücke 2 in unterschiedlichen Isolatorgehäusen 4 sind in Reihe verschaltet und die zwei zweiten Nennstromkontaktstücke 3 in unterschiedlichen Isolatorgehäusen 4 sind in Reihe verschaltet.In the exemplary embodiment of the arrangement 1 according to the invention, which is shown in the figures, two parallel-connected rated current contacts 2, 3, a first and a second rated current contact 2, 3, are arranged in an insulator housing 4, in particular spatially parallel. Two insulator housings 4, each with two rated current contacts 2, 3 connected in parallel, are in series one behind the other, in particular along arranged along a common longitudinal axis. The two first rated current contact pieces 2 in different insulator housings 4 are connected in series and the two second rated current contact pieces 3 in different insulator housings 4 are connected in series.

Die zwei Isolatorgehäuse 4, mit jeweils zwei Nennstromkontakten 2, 3 pro Isolatorgehäuse 4, sind hintereinander angeordnet, verbunden über die Getriebe 8, 9, insbesondere über den Getriebekopf 8. Die Nennstromkontakte 2, 3 und/oder die Isolatorgehäuse 4 liegen mit ihren Längsachsen im Wesentlichen in einer Ebene, welche z. B. parallel zum Untergrund, auf welchem das Traggestell 5 aufgestellt ist, angeordnet ist. Eine T-Form der Anordnung 1 ergibt sich, mit einer Mittelsenkrechten der T-Form umfassend das Traggestell 5, das Umlenkgetriebe 7 mit seitlich befestigtem Antrieb 6, der Stützsäule 10 und dem Getriebekopf 8. Die Waagerechte der T-Form ergibt sich aus den zwei Isolatorgehäusen 4, mit zwei Nennstromkontakten 2, 3 pro Isolatorgehäuse 4, wobei ein Isolatorgehäuse 4 über den Getriebekopf 8 mit dem anderen Isolatorgehäuse 4 verbunden ist.The two insulator housings 4, each with two rated current contacts 2, 3 per insulator housing 4, are arranged one behind the other, connected via the gears 8, 9, in particular via the gear head 8. The rated current contacts 2, 3 and/or the insulator housing 4 lie with their longitudinal axes in the Essentially in a plane which z. B. is arranged parallel to the ground on which the support frame 5 is placed. A T-shape of the arrangement 1 results, with a perpendicular bisector of the T-shape comprising the support frame 5, the deflection gear 7 with laterally attached drive 6, the support column 10 and the gear head 8. The horizontal of the T-shape results from the two Insulator housings 4, with two rated current contacts 2, 3 per insulator housing 4, one insulator housing 4 being connected to the other insulator housing 4 via the gear head 8.

Die Isolatorgehäuse 4, welche im Ausführungsbeispiel der Figuren dargestellt sind, sind rohrförmig ausgebildet. Die äußere Oberfläche kann gerippt sein, was in den Figuren der Einfachheit halber nicht dargestellt ist. Die Rippen erhöhen den Weg entlang der Längsachse der Isolatorgehäuse 4 und erhöhen somit den Kriechstromweg zwischen den Anschlüssen 12.The insulator housing 4, which are shown in the embodiment of the figures, are tubular. The outer surface may be ribbed, which is not shown in the figures for the sake of simplicity. The ribs increase the path along the longitudinal axis of the insulator housing 4 and thus increase the leakage current path between the terminals 12.

Alle Nennstromkontakte 2, 3 können wenigstens eine Löschdüse und/oder wenigstens einen Lichtbogenkontakt aufweisen. Es können alternativ auch alle Nennstromkontakte 2, 3 ohne Löschdüse und/oder Lichtbogenkontakt ausgebildet sein. Es können auch z. B. die ersten Nennstromkontakte 2 mit Löschdüse und/oder Lichtbogenkontakt ausgebildet sein, und die zweiten Nennstromkontakte 3 können ohne Löschdüse und/oder Lichtbogenkontakt ausgebildet sein. Die stromtragenden Teile unterschiedlicher Nennstromkontakte 2, 3 können mit unterschiedlichen Stromleitungsquerschnitt ausgebildet sein und/oder im geöffneten Zustand können unterschiedlicher Nennstromkontakte 2, 3 unterschiedliche Abstände zwischen den Kontaktstücken aufweisen. Die Nennstromkontakte 2, 3 können auch identisch aufgebaut sein.All rated current contacts 2, 3 can have at least one extinguishing nozzle and/or at least one arcing contact. Alternatively, all rated current contacts 2, 3 can also be designed without an extinguishing nozzle and/or arcing contact. It can also z. For example, the first rated current contacts 2 can be designed with an extinguishing nozzle and/or arcing contact, and the second rated current contacts 3 can be designed without an extinguishing nozzle and/or arcing contact. The current-carrying parts of different Rated current contacts 2, 3 can be designed with different power line cross-sections and/or in the open state, different rated current contacts 2, 3 can have different distances between the contact pieces. The rated current contacts 2, 3 can also be constructed identically.

Eine Steuerung oder Regelung unterschiedlicher Schaltzeiten von ersten und zweiten Nennstromkontakten 2, 3 kann über die Getriebe 8, 9 erfolgen. Insbesondere das Hilfsgetriebe 9 kann zeitlich ein späteres Einschalten und ein früheres Ausschalten der zweiten Nennstromkontakte 3 gegenüber den ersten Nennstromkontakten 2 bewirken. Alternativ oder zusätzlich können der Getriebekopf und/oder Getriebeeinheiten der einzelnen Nennstromkontakte bzw. beweglichen Kontaktstücke ein späteres Einschalten und ein früheres Ausschalten der zweiten Nennstromkontakte 3 gegenüber den ersten Nennstromkontakten 2 bewirken. Bei gleichen Schaltzeiten aller Nennstromkontaktstücke 2, 3 kann der Getriebekopf 8 und/oder das Hilfsgetriebe 9 einen Gleichlauf aller Kontakte 2, 3 erzeugen. Eine Steuerung oder Regelung gleicher oder unterschiedlicher Schaltzeiten von ersten und zweiten Nennstromkontakten 2, 3 kann alternativ oder zusätzlich über die Position und/oder Länge der Schaltstrecke erfolgen.A control or regulation of different switching times of first and second rated current contacts 2, 3 can be done via the gear 8, 9. In particular, the auxiliary gear 9 can bring about later switching on and earlier switching off of the second rated current contacts 3 compared to the first rated current contacts 2 . Alternatively or additionally, the gear head and/or gear units of the individual rated current contacts or movable contact pieces can cause the second rated current contacts 3 to be switched on later and to be switched off earlier than the first rated current contacts 2 . With the same switching times of all rated current contacts 2, 3, the gear head 8 and/or the auxiliary gear 9 can produce synchronous operation of all contacts 2, 3. A control or regulation of the same or different switching times of first and second rated current contacts 2, 3 can take place alternatively or additionally via the position and/or length of the contact gap.

Die zuvor beschriebenen Ausführungsbeispiele können untereinander kombiniert werden und/oder können mit dem Stand der Technik kombiniert werden. So können z. B. mehrere Schaltstangen 11, z. B. eine Schaltstange für den Getriebekopf 8 und eine Schaltstange 11 für das Hilfsgetriebe 9, verwendet werden. Jedem Kontakt 2, 3 kann eine Schaltstange 11 zugeordnet sein, oder einem Paar von ersten und zweiten Nennstromkontakten 2, 3 kann jeweils eine Schaltstange 11 zugeordnet sein. Es können auch mehr Kontaktpaare 2, 3 umfasst sein und/oder mehr als zwei Nennstromkontakte 2, 3 jeweils parallel und/oder in Reihe geschaltet sein. Die Anordnung 1 kann T-förmig sein, oder andere Formen wie z. B. umgekehrte L-Form oder I-Form aufweisen. Erste und/oder zweite Nennstromkontakte 2, 3 können Löscheinrichtungen zum Löschen von Lichtbögen aufweisen, und können mit gleichen oder unterschiedlichen z. B. Rohrdurchmessern für Kontaktstücke ausgebildet sein, um unterschiedliche Stromtragfähigkeiten zu realisieren, und/oder können Vakuumröhren als Nennstromkontakte umfassen. Es kann ein gemeinsamer Antrieb 6 und/oder ein Umlenkgetriebe 7 und/oder eine Stützersäule 10 und/oder eine Schaltstange 11 vorgesehen sein, oder es können mehrere Antriebe vorgesehen sein, z. B. ein Antrieb pro ersten Nennstromkontakten und ein Antrieb pro zweiten Nennstromkontakten mit weiteren Elementen der kinematischen Kette. Es kann auch für jeden Nennstromkontakt ein Antrieb vorgesehen sein, insbesondere mit unabhängigen kinematischen Ketten für jeden Nennstromkontakt.The exemplary embodiments described above can be combined with one another and/or can be combined with the prior art. So e.g. B. several shift rods 11, z. B. a shift rod for the gear head 8 and a shift rod 11 for the auxiliary gear 9 can be used. Each contact 2, 3 can be assigned a switching rod 11, or a pair of first and second rated current contacts 2, 3 can each be assigned a switching rod 11. More pairs of contacts 2, 3 can also be included and/or more than two rated current contacts 2, 3 can be connected in parallel and/or in series. The arrangement 1 can be T-shaped, or other shapes such as. B. reversed Have L-shape or I-shape. First and / or second rated current contacts 2, 3 can have quenching devices for quenching arcs, and can with the same or different z. B. tube diameters for contact pieces, in order to realize different current carrying capacities, and/or can include vacuum tubes as rated current contacts. A common drive 6 and/or a deflection gear 7 and/or a support column 10 and/or a shift rod 11 can be provided, or several drives can be provided, e.g. B. one drive per first rated current contacts and one drive per second rated current contacts with other elements of the kinematic chain. A drive can also be provided for each rated current contact, in particular with independent kinematic chains for each rated current contact.

Die Gehäuse, insbesondere die Isolatorgehäuse 4, können mit einem Schaltgas bzw. mit einem Isoliergas befüllt sein, insbesondere SF6 oder trockener Luft.The housing, in particular the insulator housing 4, can be filled with a switching gas or with an insulating gas, in particular SF 6 or dry air.

Das Traggestell 5 kann in Form eines T- oder Doppel-T-Trägers ausgebildet sein. Es können auch andere Traggestelle 5 verwendet werden, insbesondere aus Stahl oder Aluminium. Isolatorgehäuse und/oder Stützersäulen können rohrförmig, insbesondere außen gerippt ausgebildet sein, z. B. aus Silikon, Kompositwerkstoffen und/oder Keramik. Die Isolatorgehäuse und/oder Stützersäulen können auch andere Formen aufweisen, z. B. Kegel- oder Kugelform. Das Hilfsgetriebe 9 kann im Getriebekopf 8 oder z. B. seitlich am Getriebekopf 8 angeordnet sein. Das Hilfsgetriebe 9 kann alternativ auch z. B. über oder unter dem Getriebekopf 8 angeordnet sein. Der Getriebekopf 8 kann auch ohne Hilfsgetriebe 9 ausgebildet sein, mit nur einem Getriebe. Die erfindungsgemäße Anordnung kann für einen Pol ausgebildet sein, es können für mehrere Pole mehr als eine Anordnung, insbesondere parallel zueinander angeordnet werden. Zum Schalten hoher Ströme und/oder Spannungen können mehr als eine erfindungsgemäße Anordnung insbesondere hintereinander angeordnet werden.The support frame 5 can be designed in the form of a T or double T-beam. Other support frames 5 can also be used, in particular made of steel or aluminum. Insulator housing and/or support columns can be tubular, in particular ribbed on the outside, e.g. B. made of silicone, composite materials and / or ceramics. The insulator housing and/or support columns can also have other shapes, e.g. B. conical or spherical shape. The auxiliary gear 9 can be in the gear head 8 or z. B. laterally on the gear head 8 can be arranged. The auxiliary gear 9 can alternatively also z. B. above or below the gear head 8 can be arranged. The gear head 8 can also be designed without an auxiliary gear 9, with only one gear. The arrangement according to the invention can be designed for one pole; more than one arrangement can be arranged, in particular parallel to one another, for a plurality of poles. For switching high currents and/or voltages more than one arrangement according to the invention can be arranged in particular one behind the other.

BezugszeichenlisteReference List

11
Anordnung zum Schalten hoher StrömeArrangement for switching high currents
22
erster Nennstromkontaktfirst rated current contact
33
zweiter Nennstromkontaktsecond rated current contact
44
Isolatorgehäuseinsulator housing
55
Traggestellsupport frame
66
Antriebdrive
77
Umlenkgetriebedeflection gear
88th
Getriebekopfgear head
99
Hilfsgetriebeauxiliary gear
1010
Stützersäulesupport column
1111
Schaltstangeshift rod
1212
Anschlusskontaktconnection contact
1313
kinematische Kettekinematic chain

Claims (17)

  1. Arrangement (1) for switching high currents in high-voltage engineering for one pole, having at least one first and having at least one second contact (2, 3), wherein a contact (2, 3) has at least two contact pieces that are in electrical and/or mechanical contact with one another in the closed switching state,
    characterized in that
    the at least one first and the at least one second contact (2, 3) are each configured as rated-current contacts connected in parallel with one another.
  2. Arrangement (1) according to Claim 1,
    characterized in that
    at least one first contact (2) and at least one second contact (3) are arranged in a common housing (4).
  3. Arrangement (1) according to either of the preceding claims,
    characterized in that
    in the switched-on state the current flow through the second rated-current contact (3) is equal to 20 to 90%, in particular at least 40%, of the current flow through the first rated-current contact (2).
  4. Arrangement (1) according to one of the preceding claims,
    characterized in that
    when the at least one first rated-current contact (2) is switched on, the at least one second rated-current contact (3) is always in the open switching state.
  5. Arrangement (1) according to one of the preceding claims,
    characterized
    in that the housing (4) comprises an insulator, in particular an externally ribbed insulator of silicone and/or ceramic and/or composite material.
  6. Arrangement (1) according to one of the preceding claims,
    characterized in that
    the arrangement (1) is T-shaped and comprises a common, electrically insulating support pillar (10), in particular with a switching rod (11) which is movably arranged inside the support pillar (10) and/or kinematically connected in particular to a common drive (6), and wherein the T-shaped arrangement (1) comprises two insulators (4), in particular tubular in shape, arranged substantially perpendicular to the support pillar (10) in opposite directions, wherein the insulators are arranged in particular with their respective longitudinal axes substantially on a common axis and each insulator comprises at least two rated-current contacts (2, 3).
  7. Arrangement (1) according to one of the preceding claims,
    characterized in that
    the rated-current contacts (2, 3) are kinematically coupled to each other via at least one transmission (8, 9), for converting and transmitting the switching movement, in particular with a switching of the respective first rated-current contact (3) while the assigned second rated-current contact (2) is open.
  8. Arrangement (1) according to one of the preceding claims,
    characterized in that
    the arrangement (1) is designed to switch DC and/or AC voltages, in particular up to 1200 kV.
  9. Arrangement (1) according to one of the preceding claims,
    characterized in that
    at least one, in particular all rated-current contacts (2, 3) are assigned at least one arcing contact, and/or in that at least one, in particular all rated-current contacts (2, 3) are assigned at least one air nozzle.
  10. Arrangement (1) according to one of Claims 1 to 8,
    characterized in that
    it comprises four rated-current contacts (2, 3), with two first rated-current contacts (2), which comprise an air nozzle on the respective rated-current contact (2), and two second rated-current contacts (3), which are designed without an air nozzle.
  11. Arrangement (1) according to one of the preceding claims,
    characterized in that
    the rated-current contacts (2, 3) each consist of two contact pieces, in particular two hollow-cylindrical contact pieces with a diameter of 50 to 200 mm, in particular 80 to 150 mm, and/or in that the contact pieces consist of a highly conducting metal, in particular copper, aluminum or steel, and/or in that the contact surfaces of the contact pieces are silver plated and/or comprise carbon.
  12. Arrangement (1) according to one of the preceding claims,
    characterized in that
    the arrangement (1) is comprised in a three-pole switching system, in particular having an arrangement (1) according to one of the preceding claims per pole.
  13. Method for switching direct current and/or alternating current in high-voltage engineering, in particular using an arrangement (1) according to one of the preceding claims,
    characterized in that
    at least two parallel-connected rated-current contacts (2, 3) in a common housing (4) are switched.
  14. Method according to Claim 13,
    characterized in that
    at least one first rated-current contact (2) is switched on before at least one second rated-current contact (3) and/or in that at least one first rated-current contact (2) is switched off after at least one second rated-current contact (3).
  15. Method according to Claim 13,
    characterized in that
    at least one first rated-current contact (2) is switched on at the same time as at least one second rated-current contact (3) and/or in that at least one first rated-current contact (2) is switched off at the same time as at least one second rated-current contact (3).
  16. Method according to Claim 13,
    characterized in that
    two first rated-current contacts (2) are switched on, in particular simultaneously, before or at the same time as the activation of two second rated-current contacts (3), and/or in that the two first rated-current contacts (2) are switched off, in particular simultaneously, after or at the same time as the deactivation of the two second rated-current contacts (3), in particular with a respective first and second rated-current contact (2, 3) in a common housing (4).
  17. Method according to one of Claims 12 to 16,
    characterized in that
    in the switched-on state the current flow takes place exclusively through rated-current contacts (2, 3).
EP18716931.3A 2017-04-21 2018-03-27 Arrangement and method for parallel switching of high currents in high-voltage technology Active EP3586347B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017206746.2A DE102017206746A1 (en) 2017-04-21 2017-04-21 Arrangement and method for parallel switching of high currents in high voltage engineering
PCT/EP2018/057699 WO2018192751A1 (en) 2017-04-21 2018-03-27 Arrangement and method for parallel switching of high currents in high-voltage technology

Publications (2)

Publication Number Publication Date
EP3586347A1 EP3586347A1 (en) 2020-01-01
EP3586347B1 true EP3586347B1 (en) 2022-05-04

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Country Link
EP (1) EP3586347B1 (en)
CN (1) CN110537236B (en)
BR (1) BR112019020546B1 (en)
DE (1) DE102017206746A1 (en)
WO (1) WO2018192751A1 (en)

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Also Published As

Publication number Publication date
CN110537236A (en) 2019-12-03
BR112019020546B1 (en) 2024-03-05
CN110537236B (en) 2022-05-13
WO2018192751A1 (en) 2018-10-25
EP3586347A1 (en) 2020-01-01
BR112019020546A2 (en) 2020-04-28
DE102017206746A1 (en) 2018-10-25

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