EP3469613A1 - Moyen formant frotteur destiné à un disjoncteur haute tension et utilisation - Google Patents

Moyen formant frotteur destiné à un disjoncteur haute tension et utilisation

Info

Publication number
EP3469613A1
EP3469613A1 EP17739933.4A EP17739933A EP3469613A1 EP 3469613 A1 EP3469613 A1 EP 3469613A1 EP 17739933 A EP17739933 A EP 17739933A EP 3469613 A1 EP3469613 A1 EP 3469613A1
Authority
EP
European Patent Office
Prior art keywords
contact
contact arm
switching device
voltage switching
voltage
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
EP17739933.4A
Other languages
German (de)
English (en)
Other versions
EP3469613B1 (fr
Inventor
Matthias HURNICKI
Mariusz ROHMANN
Bernd RÄTH
Dirk SCHRÄDER
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to PL17739933T priority Critical patent/PL3469613T3/pl
Publication of EP3469613A1 publication Critical patent/EP3469613A1/fr
Application granted granted Critical
Publication of EP3469613B1 publication Critical patent/EP3469613B1/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
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/34—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact adapted to engage an overhead transmission line, e.g. for branching
    • H01H31/36—Contact moved by pantograph

Definitions

  • the invention relates to a Maisarman extract for a high-voltage switching device and their use, wherein the Kon ⁇ tact arm arrangement comprises at least two contact arms, which are arranged in pairs and at least one joint relative to each other movable, and each comprising a Mixarm- upper part and a contact arm lower part ,
  • High-voltage switchgear devices are in Hochwoodsbe ⁇ rich, ie used from a voltage of 1000 V.
  • High-voltage switchgear devices are z.
  • B Disconnector in particular ⁇ special single-column circuit breaker, which are used for visible separation of a current path, or earthing switch.
  • High-voltage switchgear devices can be constructed in the manner of a pantograph.
  • a typical structure comprises at least one contact with a movable and a fixed contact piece.
  • the solid contact piece, ie the fixed contact is z.
  • B is a spatially fixed cylindrical metal tube or cable.
  • the contact piece is made of a material such.
  • B copper which conducts electric current well, and / or aluminum, for a high mechanical strength.
  • the movable contact piece comprises z. B a contact arm arrangement with at least two contact arms, which are arranged in pairs and at least one joint movable relative to each other, analogous to a pantograph.
  • the contact arms each include a contact arm top and a contact arm bottom.
  • the contact arms can z. B consist of tubular metal pieces, z. B made of copper and / or aluminum tubes.
  • the separation distance z. B in disconnectors and earthing switches is clearly visible to the outside, and for reasons of space, the switch is usually not encapsulated and not installed in a housing.
  • the elements or parts of the high-voltage switching device can be set to the weather influences. Wind and / or ice load can lead to unwanted movement of the movable contact pieces, in particular to a movement away from the fixed contact, which deteriorates the electrical contact and thus leads to higher electrical losses across the contact. In extreme cases, the current path can be disconnected, unintentionally and with negative consequences for the connected power grid.
  • the object of the present invention is the avoidance or reduction of the problems described above.
  • it is an object to provide a contact arm assembly for a high voltage switching device and the use thereof, which have a reliable function, allow in particular with low electrical losses of the high-voltage switchgear ⁇ device in the connected state, and a low cost, the require ⁇ gen adapted, in particular allow modular design.
  • a contact arm arrangement according to the invention for a high-voltage switching device comprises at least two contact arms, which are arranged in pairs and at least one joint movable relative to each other, and each having a Maisarm- upper part and a contact arm lower part.
  • the contact arm upper part has in each case at least one or exactly one recess, which is designed to receive a contact element.
  • each contact element can be fastened in a stable and electrically conductive manner to the contact arm in a simple and cost-effective manner.
  • Contact elements with a predetermined, favorable shape and made of a suitable material, regardless of the shape and the material of the contact arm upper part, can be fastened to the contact arm upper part via the recess, matched to the field of application of the high-voltage switching device.
  • the shape of the contact arm upper part is independent of the shape of an electrical contact surface for an electrical contact between the contact arm and fixed contact. It can z.
  • B T-shaped contact elements are used, which are selected according to the voltage ranges and currents through the contact.
  • T-shaped Kon ⁇ tact elements compared to a tubular, ie O-shaped contact piece, produce a larger contact surface between movable contact pieces and fixed contact, which allows in the closed ⁇ senen state of the high-voltage switching device a reli ⁇ sigeren current flow with lower electrical losses.
  • It can contact elements made of copper with or without coatings z.
  • B are made of silver, or flameproof materials for a long-term stable, good electrical contact. The contact elements can provide a good electrical contact in the closed state of the high-voltage switching device, with low electrical Lusten and low resulting costs, especially in adverse weather conditions such. B in wind and ice formation and / or short circuits in the network.
  • Recess for receiving a contact element allows modular construction of the contact arm and a simple exchange of contact elements.
  • the latter can advertising independently selected from the remaining structure of the contact arm assembly to the optimized shape and material for a good electrical contact, according to the required current and clamping ⁇ voltage range of the high voltage switching device.
  • the contact elements When worn, the contact elements can be easily removed from the recess and replaced with new contact elements.
  • the contact arm design with the exception of the recess is independent of the contact element, and can with respect to material and shape on egg ⁇ properties such. B mechanical stability and réellereduk ⁇ tion be optimized.
  • the high voltage switching device can be chromatograph a high voltage switch disconnector, in particular a circuit breaker like a pan, or the high voltage switching device may be a High-voltage earthing switch, in particular a grounding switch in the manner of a pantograph.
  • the high-voltage switching device can be ⁇ forms in the manner of a single-column switching device.
  • a number of contact arms may be included in the contact arm assembly, which is dependent on parameters of the power system, to which the high-voltage switching device is Schlos ⁇ Senen is, in particular depend on the operating current and / or short-circuit current. For larger, maximum currents and / or voltages, a larger number of contact arms can be used. The number can also be selected depending on the shape and shape of the contact arms, especially when reducing the Griffinarmquerterrorisms a higher number of contact arms can be used. The flexibility in the design of the contact arm arrangement can lead to cost reductions, enable safe operation and / or keep or reduce maximum occurring electrical losses over the contact.
  • the contact sub-part and / or the contact insert can / may comprise at least two profile rods which are, in particular via spacers to each other rigidly verbun ⁇ . This allows a mechanically stable contact arm arrangement with good electrical properties, which has recesses. Parts such as B contact elements and areas of the other contact arms can be partially or completely arranged in the recesses. A contact ⁇ part, z. B the contact arm upper part can be in another Kon ⁇ clock arm, z. B are arranged in the contact arm lower part, in particular in a joint region, whereby a scissors-like movement is easily possible.
  • the recess for receiving a contact element of the contact arm upper part may be elongated along the longitudinal axis of the contact arm upper part, in particular in the manner of a gap. In the gap, the contact element can be easily arranged and fixed.
  • the elongated training he ⁇ enables the arrangement of an elongated contact element, the special ⁇ with large contact surface and / or rectangular contact area for good contact properties such. B when moving contact pieces against each other.
  • the respective recess of a contact arm upper part may be formed from ⁇ in the form of a groove in a profile bar, in particular a rectangular profile rod with rounded corners and edges.
  • At least one contact element, in particular in T-shape may beLelas ⁇ sen in the recess at least partially, in mechanical and electrical contact with the section bar.
  • Grooves are simple and inexpensive to produce ⁇ bar, z. B by milling, laser cutting, embossing.
  • a T-shaped contact element can be easily and mechanically stable inserted into a groove, in particular with mechanical and electrical contact with the material of the contact arm shell.
  • the contact arm arrangement can be constructed in a simple and cost-effective manner with contact elements having good electrical properties for contact between contact pieces. Rounded corners and edges reduce or prevent corona and flashovers.
  • the respective recess of a contact arm upper part may be formed al- ternatively or additionally in the form of a slit between at least two rectangular profile bars which are spaced apart via spacers to each other are ⁇ be strengthened.
  • rectangular profile bars with rounded corners and edges can be arranged at a distance.
  • At least one contact element, in particular in T-shape can be at least partially embedded in the recess between the profile rods , in mechanical and electrical Contact with the profile bars.
  • About spaced profile rods can be easily and inexpensively slots or recesses for contact elements are formed.
  • the contact arm arrangement can be constructed in a simple and cost-effective manner with contact elements, with good electrical properties for contact between contact pieces. Rounded corners and edges of rectangular profile bars lead to a reduction or avoidance of corona phenomena and flashovers.
  • At least one fixed contact may be comprised by the contact arm arrangement, which in the closed state of the current path of the high-voltage switchgear is in electrical contact with the at least two contact arms.
  • a hard contact is easy and inexpensive to implement.
  • a movable contact can be used, which moved up to the closing of the contact towards contact tops be ⁇ .
  • Two contact pairs, each having two contact arms can be included in the contact arm assembly, in particular two mutually parallel contact pairs which are at least one connecting element mechanically ver ⁇ connected to each other, in particular via an ON-level in the region of the joints connecting element.
  • An inventive use of the above-described contact arm arrangement comprises that the contact arm arrangement is used in a high-voltage switching device in the manner of a pantograph.
  • Pantographs can form a good contact by clamping at least one contact piece between mating contact pieces, which is mechanically and electrically stable, with low electrical losses.
  • a scissor-like movement of contact pieces of the pantograph can be done easily, with little drive energy, reliably without jamming of contact pieces, resulting in a high reliability and low electrical losses in the switched state of the high-voltage switching device.
  • the high-voltage switching device can be covered by a high-voltage electrical network and / or electrically connected to this, in particular a high-voltage network with voltages from 1000 V operating voltage.
  • a high-voltage electrical network with voltages from 1000 V operating voltage.
  • the advantages described above are positive in particular in a high-voltage network.
  • the schematic show in side view a high-voltage switching device 1 in the manner of a pantograph with a contact arm 2 according to the invention, and the Maisarman himself 2 of Figure 1 in more detail, with two contact arms 7 a Mixarm- pair, each having a contact arm upper part 8 and Contact arm lower part 9 connected via a hinge 10 include, and
  • a high-voltage switching device 1 is shown in the manner of a pantograph as a single-column circuit breaker.
  • the high-voltage switching device 1 has a contact arm arrangement 2 according to the invention, which is arranged on a support frame arrangement 5 with insulators 4.
  • the single-column circuit breaker running on a support frame assembly 5, analogous to a stand, a contact arm arrangement 2 with contact arms 7 in the manner of Pan- graph arranged, which in the closed state of the current path of the high-voltage switching device 1 in electrical and mechanical contact in particular with a mating contact 3, designed as a fixed contact, is.
  • the current path, z is the manner of Pan- graph arranged, which in the closed state of the current path of the high-voltage switching device 1 in electrical and mechanical contact in particular with a mating contact 3, designed as a fixed contact, is.
  • the movement of the contact arms 7 and the switching between the open and closed state of the high-voltage switching ⁇ device 1 is driven by a drive 6 on the support frame assembly 5.
  • the movement is from the drive 6 via a kinematic chain with z.
  • B elements such as insulators 4 or waves in the insulators 4 transmitted to the contact arm 2.
  • the drive 6 can, for. B be a motor, in particular an electric motor or a spring-loaded drive. Elements such. B gears, pulleys and / or shafts may be included in the kinematic chain.
  • the joints 10 allow a movement in which the Whyarm- upper parts 8 in the upper region, above the joint 10 between ⁇ two contact arms 2, when closing the current path of the high-voltage switching device 1 to move toward each other and move away from each other when opening.
  • the contact arms 7 form, via the joint 10 between the two contact arms 7, a kind of shear, between whose legs the mating contact 3 is mechanically clamped when the current path is closed.
  • the mating contact 3 is the simplicity sake in Figure 2 is not Darge ⁇ .
  • the contact arm upper part 8 and the contact arm lower part 9 ei ⁇ Nes contact arm 7 are connected via a joint 10 each movable with each other.
  • a joint 10 By the connection of two contact arms 7 and two contact arm tops 8 via a joint 10 performs a movement in which the joints 10, each connecting the contact arm base 9 and the contact arm shell 8 at one end, away from each other, to an opening of the Sche ⁇ re formed by the contact arm tops 8.
  • the joint 10 is moved to connect the two contact ⁇ arms 7 or two contact tops 8 downwards. In this position, the current path is opened via the high-voltage switching device 1.
  • a movement of the contact arms 7 takes place in each case via a Dre ⁇ hen the contact arm lower parts 9 about an axis perpendicular to the plane of Figure 2, wherein the axis of rotation is arranged at the end of the ⁇ each respective contact arm lower part 9, which the end of the contact arm lower part 9 with hinged 10 opposite ⁇ lies.
  • the rotational movement of the contact arm lower part 9 about its lower end is effected by the drive 6, transmitted via the kinematic chain.
  • the contact arm lower parts 9 are rotated away from one another in opposite directions, ie the right contact arm base part 9 in the clockwise direction and the left contact arm lower part 9 in the counterclockwise direction.
  • the contact arm lower parts 9 are rotated in opposite Richtun ⁇ conditions toward each other, ie the right Maisarm- lower part 9 counterclockwise and the left Kunststoffarm- lower part 9 in the clockwise direction.
  • Analog one pantograph the rotational movement of the two contact sub-parts 9 about the axis at the end of the contact arm lower parts 9, a movement of the contact arm tops 8.
  • the shears or the contact to the mating contact 3 is opened and the current path interrupted.
  • the joint 10 which connects the contact arm upper parts 8 of the two contact arms 7 with each other, moved downward.
  • the ends of the contact arm upper parts 8 are moved downwards, as well as the freely movable end of the two contact arm lower parts 9 are each moved downwards.
  • the ends of the contact arm upper parts 8 are moved upwards and the freely movable end of the two contact arm lower parts 9 is in each case moved upward.
  • the contact arm tops 8, as shown in Figure 2, have a kink. As a result, they are bent towards each other at the upper ends of the contact arm tops 8.
  • FIG. 3 shows two parallel contact arm pairs with contact arms 7 of FIG. 2, rigidly connected via connecting elements 11.
  • the connecting elements 11 are z. B arranged in the form of waves or rods perpendicular to the plane of the figure 2 in Figure 3 between the contact arm pairs.
  • the connecting elements 11 are arranged ⁇ respectively at the joints 10 and respectively connect two equivalent joints 10 of the opposing contact pairs with each other.
  • the three connecting elements 11 are the same length, whereby the contact ⁇ arm pairs are arranged parallel to each other.
  • a tubular mating contact 3 is arranged with its longitudinal axis parallel to the longitudinal axes of the connecting elements 11. The one sake of simplicity the counter contact is not drawn to a ⁇ in Figure 3. 3
  • FIG. 4 shows an upper end of a contact arm upper part 8 of the contact arms 7 shown in FIGS. 1 to 3.
  • the dashed line 16 represents the previously beriane- ne kink-axis and the bends in the contact arm tops.
  • An elongated recess in the contact arm upper part 8 is formed by a longitudinal groove 12 along the longitudinal axis of the Kon ⁇ taktarm upper part 8 ,
  • the groove 12 can through the entire cross section of the contact arm shell 8 or only in a surface area to a certain depth, z. B may be formed in the range of centimeters in the contact arm upper part 8.
  • FIG. 5 shows an alternative embodiment of the contact arm upper part 8 shown in FIG. The
  • Recess is formed between two parallel profile bars 13 by spacers 15 between the profile bars 13.
  • the distance between the profile bars 13 and the width of the spacers 15 gives the width of the recess and the distance of the spacers 15 from each other gives the length of the recess along the longitudinal axis of the contact arm shell 8.
  • the spacers 15 can z. B by means of screws and / or welding and / or soldering and / or gluing to the two profile bars 13 of the contact arm upper part 8. Hold the two Pro ⁇ filstangen 13 to a particular constant distance from each other along the longitudinal axis of the section bars 13 and the contact arm upper part 8.
  • the fastening elements 14 ent ⁇ long the longitudinal axis of the section bars 13 or of the Maisarm- upper part 8 may be arranged in order to mechanically and in particular electrically connect the two profile rods 13 with each other.
  • the contact arm lower parts 9 can be constructed of two profile rods 13 with fastening 14 and / or spacer elements 15.
  • Figure 6 is a contact arm upper part 8 of Figure 4, with a contact element 17 in the groove 12 as a recess angeord ⁇ net, shown in sectional view.
  • a contact element 17 is arranged or recessed form ⁇ conclusively.
  • the contact element 17 is rod-shaped, ie elongated, in particular without being hollow on the inside.
  • the contact element 17 has a T-shape in cross-section and is formed analogously to a rail. Holes are continuous through the contact element 17 on one side arranged vertical surface 19, which holes are assigned in a lateral surface of the profile bar 13.
  • Screws 14 and / or bolts can be guided through the holes, the contact element 17 on the profile bar 13 mechanically stable and / or good electrically conductive fix.
  • the mounting ⁇ element 14 can be inserted along the mounting ⁇ element 14 in the interior of the profile bar 13, between the wall of the profile bar 20 and the contact surface 19, stand-off elements 21.
  • the profile bar 13 may, for. B made of copper, and / or made of aluminum.
  • the contact element 17 may be made of copper for good electrical conductivity and good electrical contact, and is kept cally stable over the section bar 13 mecha ⁇ .
  • a contact arm upper part 8 is described, with high mechanical stability and good electrical contact properties in contact with the fixed or mating contact 3.
  • the Kunststoffarm- lower part 9 of the contact arm 7 may be analogous to the Whyarm- upper part 8, only without groove 12 and / or contact ⁇ element 17th
  • FIG. 7 shows a contact arm upper part 8 according to FIG. 5 in a sectional view, with a contact element 17 arranged in the recess between the two profile rods 13.
  • the contact arm 9 of the upper part of Figure 7 has filstange instead of a product 13 with a rectangular cross section, as shown in Fi gur ⁇ 6, two mutually parallel profile rods 13 with an oval cross-section.
  • the oval cross-section or the wall 20 of a profile bar 13 is composed of two flat, parallel sides which are mechanically connected to one another centrally via a connecting web 18 extending perpendicularly on the sides, which extends along the length of the profile bars 13, and two Semicircles with radius r, which each miteinan ⁇ connect the opposite ends of the planes parallel to the connecting web 18.
  • the two profile bars 13 are spaced, parallel zueinan ⁇ arranged, whereby a gap or a recess between the profile bars 13 is formed.
  • Spacer elements 15 with a thickness can be arranged between the profile bars 13, in particular in the region of Befest onlysele ⁇ elements 14.
  • the two profile rods 13 of the Kunststoffarm- upper part 8 are fixed in parallel, relative to each other.
  • the con- taktarm lower part 9 of the contact 7 can be constructed analogous to the Kon ⁇ taktarm upper part 8, but without the contact element 17 and spacer elements 15 instead of the contact element 17 in the obe ⁇ ren area of the section bars 13.
  • one or a respective contact element 17 may be arranged. It can also be two or more profile bars 13, in particular arranged parallel to each other, as shown in Figure 7, and the contact element 17 or the contact ⁇ elements 17 may be arranged between or respectively between the profile bars 13.
  • This profile bars 13 cross sections such. B rectangular, oval and / or elliptical oval. In each case all profile rods 13 may be formed with the same cross section or with different cross sections, in particular with different shape. Combinations of the exemplary embodiments of FIGS. 6 and 7 may also be used, with contact elements 17 being arranged between profile rods 13 and in recesses of the respective profile bar 13.
  • Two, four or more contact arms 7 can be used for the contact arm arrangement 2. These can be parallel
  • the contact arm tops 8 and the contact arm parts 9 may, for. B have the shape as shown in Figure 6, or have the shape as shown in Figure 7, or combinations of research men. It can be arranged between the contact arms 7 electrically conductive or non-conductive connecting elements 11. It may, as shown in Figure 3, five connection ⁇ elements 11 are used, or a smaller or larger number of connection elements 11. Joints 10 may waves and / or storage and, optionally, additional elements for power transmission, consisting of highly conductive materials such as copper or aluminum are made.
  • the contact elements 17 and profile bars 13 can instead of screws 14, rivets or bolts z. B be joined together by welding or gluing. Contact elements 14 and / or profile bars 13 may be coated for better electrical conductivity, for.
  • Profile rods 13 and / or contact elements 17 may be made of a material, in particular ⁇ special a good conductive material such. B copper, or mechanically stable materials such. B steel or aluminum, and / or may have different Materia ⁇ lien and / or alloys.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Contacts (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

L'invention concerne un moyen formant frotteur (2) destiné à un disjoncteur haute tension (1), comprenant au moins deux segments (7) qui sont disposés par paires, qui sont mobiles l'un par rapport à l'autre par l'intermédiaire d'au moins une articulation (10), et qui comportent respectivement une partie supérieure de frotteur (8) et une partie inférieure de frotteur (9). La partie supérieure de frotteur (8) présente respectivement au moins un évidement qui est conçu pour recevoir un élément formant contact (17). Selon l'invention, le moyen formant frotteur (2) peut être utilisé dans un disjoncteur haute tension (1) à la manière d'un pantographe.
EP17739933.4A 2016-08-03 2017-07-06 Moyen formant frotteur destiné à un disjoncteur haute tension et utilisation Active EP3469613B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17739933T PL3469613T3 (pl) 2016-08-03 2017-07-06 Układ ramienia stykowego do przyrządu rozdzielczego wysokiego napięcia i jego zastosowanie

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016214377.8A DE102016214377B4 (de) 2016-08-03 2016-08-03 Kontaktarmanordnung für ein Hochspannungs-Schaltgerät und deren Verwendung
PCT/EP2017/067006 WO2018024437A1 (fr) 2016-08-03 2017-07-06 Moyen formant frotteur destiné à un disjoncteur haute tension et utilisation

Publications (2)

Publication Number Publication Date
EP3469613A1 true EP3469613A1 (fr) 2019-04-17
EP3469613B1 EP3469613B1 (fr) 2021-03-03

Family

ID=59350902

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17739933.4A Active EP3469613B1 (fr) 2016-08-03 2017-07-06 Moyen formant frotteur destiné à un disjoncteur haute tension et utilisation

Country Status (6)

Country Link
EP (1) EP3469613B1 (fr)
CN (1) CN109643617B (fr)
BR (1) BR112019001279A2 (fr)
DE (1) DE102016214377B4 (fr)
PL (1) PL3469613T3 (fr)
WO (1) WO2018024437A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112002590B (zh) * 2020-08-17 2022-10-28 赫兹曼电力（广东）有限公司 蓄能驱动装置及应用其的三工位操动机构

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1901689A (en) * 1931-05-04 1933-03-14 Delta Star Electric Co Switch
SE310905B (fr) * 1965-10-15 1969-05-19 Asea Ab
US3388225A (en) * 1966-09-29 1968-06-11 Ite Circuit Breaker Ltd Jaw for ice breaking switch
DE3235380A1 (de) * 1982-09-24 1984-03-29 Ruhrtal Elektrizitätsgesellschaft Hartig GmbH & Co, 4300 Essen Gegenkontakt fuer trennschalter
US4564731A (en) * 1982-03-17 1986-01-14 Ruhrtal-Elektrizitatsgesellschaft Hartig Gmbh & Co. Scissor-type disconnect switch with contact elements having wear-resistant armatures
DE3231170A1 (de) 1982-08-21 1984-02-23 Brown, Boveri & Cie Ag, 6800 Mannheim Scherentrennschalter
FR2819626B1 (fr) * 2001-01-12 2003-02-21 Alstom Sectionneur a haute tension a isolation dans l'air
CN2938357Y (zh) * 2006-08-24 2007-08-22 周新辉 高压接地开关鼓包型静触头装置

Also Published As

Publication number Publication date
PL3469613T3 (pl) 2021-08-23
DE102016214377B4 (de) 2018-10-25
CN109643617B (zh) 2020-09-25
DE102016214377A1 (de) 2018-02-08
CN109643617A (zh) 2019-04-16
EP3469613B1 (fr) 2021-03-03
WO2018024437A1 (fr) 2018-02-08
BR112019001279A2 (pt) 2019-04-30

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