EP3559967A1 - Appareillage de commutation électrique - Google Patents

Appareillage de commutation électrique

Info

Publication number
EP3559967A1
EP3559967A1 EP18704432.6A EP18704432A EP3559967A1 EP 3559967 A1 EP3559967 A1 EP 3559967A1 EP 18704432 A EP18704432 A EP 18704432A EP 3559967 A1 EP3559967 A1 EP 3559967A1
Authority
EP
European Patent Office
Prior art keywords
switching
electrically insulating
electrical
chamber
switching device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18704432.6A
Other languages
German (de)
English (en)
Other versions
EP3559967C0 (fr
EP3559967B1 (fr
Inventor
Thomas Chyla
Stefan Giere
Volker Lehmann
Jens Schimmelpfennig
Jörg Teichmann
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
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP3559967A1 publication Critical patent/EP3559967A1/fr
Application granted granted Critical
Publication of EP3559967C0 publication Critical patent/EP3559967C0/fr
Publication of EP3559967B1 publication Critical patent/EP3559967B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

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

Definitions

  • the invention relates to an electrical switching device with a first switching point and with a first electrically insulating switching chamber, which are supported by an electrically insulating support frame.
  • An electrical switching device is for example from the
  • an electrical switching device which has a first switching point and a first electrically insulating switching ⁇ chamber.
  • the first switching point and the first electrically insulating switching chamber are supported by an electrically insulating support frame.
  • the known electrical switching device is intended for use in electron energy networks.
  • the electrical switching device when used under high voltages, is of an appropriate size equipped with trainees to ensure sufficient insulation distances in atmospheric air ⁇ . With increasing voltage load of the electrical switching device , the electrical switching ⁇ devices are to increase accordingly.
  • the space for setting up electrical switching devices is particularly limited densely populated regions.
  • the object is an electrical
  • an aspect ratio of an insulating gap of the first electrically insulating switching chamber to an insulating gap of the electrically insulating support frame is less than 0.6, in particular less than 0.45.
  • An electrical switching device is used to interrupt or produce a phase conductor, over which ge ⁇ driven by an electrical voltage, if necessary, an electrical current can be switched.
  • the electrical Kunststoffge ⁇ advises can be designed as a load switching device that makes a sub ⁇ refraction or a switching through the phase conductor under load of a rated current.
  • the electrical switching device (disconnecting device) is designed only for the currentless switching of a phase conductor train.
  • the electrical switching device can switch on and off a multiple of a rated current.
  • a power switching device can control a short circuit.
  • Electrical switching devices can have a mechanical switching point for producing or interrupting a phase conductor train. For example, to be movable re ⁇ tively to each other to contact each other or to dissolve a contact between the switching contact pieces switching contact pieces. However, it can also be provided that, for example, a semiconducting switching point are used which changes its impedance, for example due to an external circuit.
  • An electrical switching device can be used in particular in electrical energy transmission networks that serve a transport or a distribution of electrical energy.
  • Such electrical power transmission networks can be operated ⁇ example with AC or DC voltage.
  • an electrically insulating supporting framework By using an electrically insulating supporting framework, the possibility is given, electrically isolated from a Potenti ⁇ al, for example earth potential, to move the switching chamber and the switching point.
  • the carrying Scaffolding can be performed in sections electrically conductive and from ⁇ cut, electrically insulating. In ⁇ example, can be arranged in the support frame, an isolation distance or multiple isolation distances.
  • the isolation distance of the electrically insulating supporting framework can be prepared by a plurality of interconnected electrically insulating From ⁇ sections.
  • the composite of the plurality of electrically insulating portions and, for example, electrically conductive flange between see see the electrically insulating sections are used.
  • the proportions of the sections are preferably summed, which are free from an electrically conductive covering (eg. As the valve).
  • an electrically conductive covering eg. As the valve.
  • a voltage reduction for example from a high-voltage potential to a ground potential, can be carried out.
  • the isolation path is used for the electrical isolation ⁇ or separation of electrical potentials, on the one hand, the first switching point or the first electrically insulating switching chamber and on the other hand a different potential, such as earth potential can be separated ⁇ nen.
  • the support frame can be partially columnar, gege ⁇ possibly hollow, be executed, wherein the support frame is attached at one end to a foundation, and can be carried freely promoting with its other end. ⁇ advantage adhesive enough, may be disposed at the free end of the electrically insulating support frame, the first switching point or the electrically insulating switching chamber.
  • the electrically insulating switching chamber for example, forming a housing for the first switching point and surround the ers ⁇ te switching point.
  • An insulating gap can play extending in parallel to the switching ⁇ or bridge the switching point.
  • a substantially tubular portion of the switching chamber may form the isolation path.
  • fittings may limit / terminate a tubular section.
  • Spacing a switching point / switching chamber ensures against earth potential, wherein the projection ei ⁇ ner electrically insulating switching chamber or a switching point is reduced compared to known structures.
  • the projection ei ⁇ ner electrically insulating switching chamber or a switching point is reduced compared to known structures.
  • the mass can be reduced at the free end of the electrically insulating support frame. According break forces are reduced at Tragge ⁇ Jost, thereby shoring can be formed as a result in comparable simplified way.
  • the electrically insulating switching chamber is an electrically insulating chassis for the first switching point to move the same ⁇ electrically isolated, and to realize a generic dielekt- stabilization of the first switching point.
  • the isolation path of the switching chamber extends in We ⁇ sentlichen parallel to the orientation of the switching point.
  • a further advantageous embodiment can provide that a second switching ⁇ site and a second electrically insulating switching chamber are arranged on the electrically insulating support frame.
  • the electrical switching device can for example have a Wegunterbre ⁇ sponding switching path, said first switching point and the second switching part repeatedly interrupt ⁇ are of the switching path.
  • it is a doubly interrupting switching path. This can be the first and the second switching point to be electrically connected in series. This makes it possible to distribute a pending electric power to multiple switching Stel ⁇ len over the switching path.
  • Switching chamber and the first electrically insulating switching chamber can be performed substantially identical.
  • the two switching chambers and the two switching points can be arranged in opposite directions, in particular to each other in alignment.
  • a further advantageous embodiment may provide that a length ratio of an insulating gap of the first electrically insulating switching chamber plus an isolation path of the second electrically insulating switching chamber to an isolation path of the electrically insulating support stand ⁇ less than 0.6, in particular less than 0.45.
  • Both the first and the second switching chamber each provide an insulation gap at the first and second, respectively
  • the two switching points result in particular in an electrical switching device with a multi-interrupting switching path an isolation distance, which is composed of the sum of the isolation distance to the first switching chamber and the isolation distance to the second switching ⁇ chamber.
  • the sum of these Isolationsstre ⁇ CKEN the switching chambers can have a ratio of lengths in a range of preferably from 0.3 to 0.45 for the isolation path of the supporting framework.
  • the length of the electrical insulation gap of the first and / or the second switching chamber should be at least 2,500 mm.
  • this isolation distance of min ⁇ least 2,500 mm, both the first and the second switching chamber have, so that sets in total a minimum length of the insulation distance of the first and second switching chamber of 5,000 mm.
  • Such a design makes it possible to design an electrical switching device which can also be used in the high-voltage range, that is to say, for example, in ranges of 800 kV or 1,100 kV.
  • a further advantageous embodiment can provide that an electrically insulating switching chamber surrounds a receiving space which has a cross section, wherein a ratio of the maximum extent of the cross section to Iso ⁇ lationsorder of the receiving space encompassing electrically insulating switching chamber is greater than or equal 0.1.
  • the switching chamber can encompass a receiving space within which a switching point can be arranged.
  • the receiving space can act as an electrical insulator and form an insulation gap of an electrically insulating switching chamber.
  • the receiving space can be designed in the manner of a cylinder with an oval or circular cross section.
  • the cross section of the receiving space is provided with a maximum extent. For a circular cross section, this is the diameter. Due to the noted rectifnver ⁇ isses holds a sufficient mechanical stability is ensured by the switching chamber in order to position a switching safely.
  • a further advantageous embodiment can provide that an electrically insulating switching chamber surrounds a receiving space with a substantially elliptical, in particular circular cross-section.
  • an elliptical, in particular circular cross-section has the advantage that edges and projections are avoided in the cross ⁇ section . This results in walls for the switching chamber, which provide a favorable course available to distribute forces within the switching chamber and to avoid point overloads of the switching chamber.
  • the maxi ⁇ male extension of the cross section corresponds to the diameter of the Krei ⁇ ses.
  • the maximum extent of the length of the major axis corresponds to the ellipse.
  • the maximum stretching He ⁇ a distance of greater than or equal to 350 mm, in particular greater amount to 400 mm up to a maximum of 500 to 600 mm.
  • an electrically insulating switching chamber is substantially tubular.
  • a substantially tubular switching chamber has the advantages in part, that the casing side a Um gleich aconsrau ⁇ mes can be formed.
  • the tube shape is suitable to frontally to provide example ⁇ , one or both sides of the front side each access to the receiving space of the switching chamber.
  • the end faces can be closed or closed, for example, with valves.
  • the valves can also serve to electrically contact a switching point arranged in the interior of the receiving space and to integrate it in a phase conductor cable to be switched.
  • the switching chamber may, for example, have a tubular structure of an electrically insulating material.
  • electrically insulating materials are, for example, ceramics or plastics, such as resins, silicates kone or similar plastics.
  • the recording can be provided with a ribbing space outside the casing side, a creepage distance (in particular, between end Armatu ⁇ ren) on its outer surface to increase.
  • a further advantageous embodiment can provide that the electrically insulating switching chambers are connected to one another via a gear head, which is seated on a free end of the electrically insulating support frame.
  • a gear head may be arranged.
  • the gear head in turn may be formed from elekt ⁇ driven conductive material.
  • the switching chambers can then be connected to the gearhead, so that the switching chambers are supported on the support frame via the gearhead.
  • the switching chambers can be struck in particular in a tubular configuration with a front side on the gear head and carry with their respective other front side of the gear head freely.
  • the gear head, and in particular a housing of the gear head for example, also be used in order to provide an electrical contact-making element is available, via which first are so ⁇ as a second switching electrically connected in series with each other a.
  • the Ge ⁇ head gear may be used to transform a drive movement and to transfer, for example by a common drive means a motion to both a first switching point and to a second switching point.
  • the gear head can be attached to an insulating section of the electrically insulating Traggerüs ⁇ tes.
  • the electrically insulating switching chambers are oriented opposite to each other.
  • the switching chambers may be arranged on the gear head on opposite sides of the same and in opposite directions to each other from the gear head.
  • the switching chambers can in particular be aligned in alignment with one another, wherein the gear head is positioned between the aligned switching chambers. Accordingly, it is possible to form an electric switching device in outdoor version in T-shape.
  • a coaxial alignment of the longitudinal axes of the tubular switching chambers may be provided.
  • the electrically insulating switching chambers each receive a switching point.
  • a switching chamber When using a switching chamber can be provided that a switching chamber receives a switching point.
  • a switching chamber may have a receiving space which is surrounded by the switching chamber and provides mechanical protection for the switching point.
  • the switching point can be inserted in the receiving space, so that the
  • Switching point is added in the switching chamber. It can be provided that a separate switching chamber is set up for each switching point. As a result, a modular structure of an electrical switching device is advantageously supported by, for example, identical switching chambers and identical switching points are used several times on the electrical switching device.
  • a further advantageous embodiment may provide that at least one switching point a switching resistor is connected elekt ⁇ parallel.
  • overvoltages can occur on an electrical switching device which have a higher magnitude than the measuring voltage of the electrical switching device. This may for example by dynamic processes in an electric energy transmission network ⁇ such.
  • the electrically insulating support frame can be used to position a Wegwi ⁇ resistance.
  • a switching resistor can be arranged electrically parallel to both the first and the second switching point.
  • the switching resistance can be positioned outside a switching chamber but also within a switching chamber.
  • end fittings arranged on the one hand for contacting a
  • valves can be provided for positioning the switching resistance, for example parallel to the switching chamber.
  • a further advantageous embodiment can provide that an electrically insulating switching chamber is a pressure vessel.
  • a switching chamber can provide a receiving space available within which, for example, a switching point is arranged ⁇ .
  • the switching chamber can encapsulate the receiving space fluid-tight, whereby the interior of the switching chamber can also be filled with a separate fluid. This fluid is z. B. under an overpressure or a negative pressure
  • This pressure difference has the
  • Resist switching chamber so that it is designed as a pressure vessel.
  • the switching chamber can advantageously be formed tubular, wherein the end face a closure is made by means of fittings.
  • the fittings may be corresponding part of the pressure vessel and serve to allow integration of the electrical switching device or a switching point in a phase conductor to be switched.
  • an electrically insulating fluid is enclosed under overpressure in an electrically insulating switching chamber.
  • An electrically insulating fluid in gaseous and / or liquid form may be included in the switching chamber.
  • Suitable electrically insulating fluids are, for example, fluorine-containing substances such as sulfur hexafluoride, fluoroketones, fluoronitriles, peroxides, nitrogen, oxygen and other electronegative substances or mixtures with such substances.
  • the figure shows a side view of an electrical switching device ⁇ .
  • the figure shows a side view of an electrical switching ⁇ device in Freiluftbauweise.
  • the electrical switching device is designed as a free-air-insulated circuit breaker in so-called Lifetank design.
  • the electrical switching device has an electrically insulating support frame 1.
  • the electrically insulating support frame has a base, which is generally constructed of electrically conductive elements.
  • the base may be a Stahlkon ⁇ construction, which introduces forces in a foundation.
  • a drive device 2 is posted. If necessary, kinetic energy can be delivered by means of the drive device 2 in order to control a switching operation of the electrical switchgear. trigger.
  • the drive device 2 preferably has the same electrical potential as the base. This electrical potential is preferably ground potential.
  • the electrically insulating support column 3 has a plurality of electrically insulating ⁇ sections, which are interconnected ⁇ the. Each of the electrically insulating sections has an electrically insulating hollow body which is delimited at the end by fittings. About the fittings, the electrically insulating sections are connected to each other with an angle. Further, a connection to the base is on the remaining fittings at the ends of the electrically insulating support column 3 of a hand, are provided so that the support column 3 ⁇ rüsts continued protrudes from the base of the electrically insulating Tragge-. On the other hand connect with a Ge ⁇ gear head 5 is provided.
  • electrically insulating support column 3 of the electrically insulating support frame 1 ei ⁇ ne insulation section 4 of the electrically insulating Tragge ⁇ rüsts 1 is made.
  • the surface is ribbed.
  • the gear head 5 is held.
  • the gear ⁇ head 5 has a housing made of electrically conductive material and is connected via a counter flange to the valve of the electrically insulating support column 3 with this rigid angle.
  • a kinematic chain is laid inside the hollow electrically insulating support column 3, which extends into the gear head 5 inside.
  • an axially displaceable drive rod may for example be arranged in the interior of the electrically insulating support column 3 which is electrically insulating and thus the Isolationsfä ⁇ ability of the electrically insulating support column 3 ER- erect holds.
  • the drive rod can be electrically transferred to a movement in the transmission head 5 iso ⁇ Liert.
  • a first electrically insulating switching chamber 6 and a second electrically insulating switching chamber 7 are arranged on opposite sides (shown in section in the figure).
  • the two switching chambers 6, 7 have a similar structure and are similar to the electrically insulating elements of the electrically insulating support column 3 each equipped with a tubular electrically isolie ⁇ - generating body.
  • the electrically insulating base bodies each surround a receiving space.
  • a second switching point 9 is arranged.
  • At the end of the tubular base body of the electrically insulating switching chambers 6, 7 each valves are arranged.
  • the remote from the gear head 5 ends of the electrically insulating switching chambers 6, 7 are closed with valves, which are used as connection points of the electrical
  • a division of the kinematic chain is made inside the Getriebekop ⁇ fes 5, via which a movement of the drive device 2 to the two switching points 8, 9 can be made.
  • About the kinematic chain is a relative movement of re ⁇ relative to each other movable switching contact pieces of the first and the second switching point 8, 9 allows.
  • a common On ⁇ drive device 2 for operating the first and the second switching 8, are used. 9 Accordingly, in a simple manner that a timed switching behavior of the first and the second switching point 8, 9 takes place. In ⁇ example, the two switching points 8, 9 are operated synchronously.
  • a switching resistor 10a, 10b is arranged parallel to the insulating path of the two electrically insulating switching chambers 6, 7 (shown in section in the FIGURE ).
  • the shift resistors 10a, 10b are each constructed identically, wherein electrically isolie ⁇ Rende housing each receive a resistive element in its interior and protect the resistance element from external weathering.
  • the switching resistors 10a, 10b may be switchable, so that the parallel connections to the switching points 8, 9 can be separated.
  • the electrically insulating switching chambers 6, 7 are designed as pressure vessels, ie the switching chambers 6, 7 hermetically enclose an electrically insulating fluid (gas and / or liquid) in their interior.
  • an electrically insulating fluid gas and / or liquid
  • a pressurization of the electrically insulating fluid is provided. It can be provided that via the flanging of the electrically insulating switching chambers 6, 7 with the gear head 5 and with the electrically insulating support column 3, a fluid filling of the switching chambers 6, 7, the gear head 5 and the electrically insulating ⁇ - generating support column 3 takes place.
  • the electrically insulating switching chambers 6, 7 each have an insulation gap IIa, IIb.
  • the insulation paths IIa, IIb are formed by the electrically insulating base body.
  • the insulation paths IIa, IIb are bounded by the ends located on the electrically insulating switching chambers 6, 7 fittings.
  • the insulation distances IIa, IIb parallel to the first and the second switching 8, 9.
  • the insulation section 4 of the elekt ⁇ driven insulating supporting frame 1 is formed by the electrically insulating portions of the electrically insulating support column. 3
  • the insulation section 4 of the support frame 1 in this case has a greater length than the respective isolation ⁇ stretch IIa, IIb of the first electrically insulating switching chamber 6 or the second electrically insulating switching chamber 7.
  • the insulation distances are the distances that are necessary for the separation of different electrical potentials, eg ground potential and potential to be switched.
  • the insulation distances IIa, IIb of the first switching chamber 6 or the second switching chamber 7 should be at least 2500mm.
  • the electrically insulating switching chamber 6, 7 each encompass a receiving space, which has a substantially circular cross-section. A maximum extension di of a circular cross section is its diameter. In this case, the cross section in its maximum extent is greater than 10% of the length of the insulation section IIa, IIb, which surrounds the respective receiving space.

Landscapes

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

Abstract

L'invention concerne un appareillage de commutation électrique qui comprend une structure de support (1) isolante électrique. La structure de support (1) isolante électrique porte un premier point de commutation (8) ainsi qu'une première chambre de commutation (6) isolante électrique. Un rapport entre une ligne d'isolement (11a) de la première chambre de commutation (6) isolante électrique et une ligne d'isolement (4) de la structure de support (1) est inférieur à 0,6, en particulier inférieur à 0,45.
EP18704432.6A 2017-02-21 2018-01-23 Appareillage de commutation électrique Active EP3559967B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017202735.5A DE102017202735A1 (de) 2017-02-21 2017-02-21 Elektrisches Schaltgerät
PCT/EP2018/051553 WO2018153593A1 (fr) 2017-02-21 2018-01-23 Appareillage de commutation électrique

Publications (3)

Publication Number Publication Date
EP3559967A1 true EP3559967A1 (fr) 2019-10-30
EP3559967C0 EP3559967C0 (fr) 2023-08-02
EP3559967B1 EP3559967B1 (fr) 2023-08-02

Family

ID=61192864

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18704432.6A Active EP3559967B1 (fr) 2017-02-21 2018-01-23 Appareillage de commutation électrique

Country Status (4)

Country Link
EP (1) EP3559967B1 (fr)
CN (1) CN110392917B (fr)
DE (1) DE102017202735A1 (fr)
WO (1) WO2018153593A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018214493A1 (de) * 2018-08-28 2020-03-05 Siemens Aktiengesellschaft Mittel- oder Hochspannungs-Schalter und dessen Verwendung
CN110137004A (zh) * 2019-06-04 2019-08-16 国网四川省电力公司技能培训中心 一种用于输电网络的电气开关装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1024361A (fr) * 1950-09-07 1953-04-01 Alsthom Cgee Perfectionnement aux interrupteurs à soufflage par gaz comprimé, avec sectionneur incorporé
CH331003A (de) * 1955-02-16 1958-06-30 Bbc Brown Boveri & Cie Druckgasschalter mit Mehrfachunterbrechung
DE1197532B (de) * 1958-04-16 1965-07-29 Licentia Gmbh Gekapselte, in mit Isoliergas erhoehten Drucks gefuellten rohrfoermigen Behaeltern untergebrachte Schaltanlagen
EP0721197B1 (fr) * 1995-01-06 2002-03-06 Gec Alsthom T & D Sa Disjoncteur à deux chambres de coupure par pôles
DE102006004811A1 (de) 2006-01-26 2007-08-09 Siemens Ag Elektrisches Schaltgerät mit Potentialsteuerung
CN200986885Y (zh) * 2006-11-13 2007-12-05 王光顺 一种用于gis的特高压断路器
JP4703616B2 (ja) * 2007-08-30 2011-06-15 株式会社日立製作所 ガス絶縁遮断器
CN202454479U (zh) * 2011-12-20 2012-09-26 平高集团有限公司 1100kV特高压串补旁路开关

Also Published As

Publication number Publication date
WO2018153593A1 (fr) 2018-08-30
DE102017202735A1 (de) 2018-08-23
EP3559967C0 (fr) 2023-08-02
CN110392917B (zh) 2022-02-08
EP3559967B1 (fr) 2023-08-02
CN110392917A (zh) 2019-10-29

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