EP3469611A1 - Système de contact pour appareil de commutation haute tension, son utilisation et sa fabrication - Google Patents

Système de contact pour appareil de commutation haute tension, son utilisation et sa fabrication

Info

Publication number
EP3469611A1
EP3469611A1 EP17739934.2A EP17739934A EP3469611A1 EP 3469611 A1 EP3469611 A1 EP 3469611A1 EP 17739934 A EP17739934 A EP 17739934A EP 3469611 A1 EP3469611 A1 EP 3469611A1
Authority
EP
European Patent Office
Prior art keywords
contact
elements
shaped
arrangement
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
EP17739934.2A
Other languages
German (de)
English (en)
Other versions
EP3469611B1 (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 PL17739934T priority Critical patent/PL3469611T3/pl
Publication of EP3469611A1 publication Critical patent/EP3469611A1/fr
Application granted granted Critical
Publication of EP3469611B1 publication Critical patent/EP3469611B1/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
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2025—Bridging contacts comprising two-parallel bridges
    • H01H2001/2033—Bridging contacts comprising two-parallel bridges with a contact bridge on both opposite sides of a fixed contact pair, each contact bridge being moved to close or open the circuit

Definitions

  • the invention relates to a contact arrangement for a high-voltage switching device and its use and manufacture ⁇ ment.
  • the contact arrangement comprises at least one bewegli ⁇ contact surfaces, having at least two contact elements for electrically contacting a mating contact piece.
  • High-voltage switching devices are used for switching high voltages and currents, in particular in the range of 70 to 800 kV.
  • High-voltage switching devices are z. B. earthing switch and disconnector, in particular rotary disconnector, toggle disconnector, or single pivot disconnector.
  • a current path is separated on at least one contact with a separation ⁇ distance, which z. B. depends on the applied voltage.
  • An electrical contact comprises a contact arrangement which has at least one contact element and at least one counter contact piece.
  • the at least one contact ⁇ element and the at least one mating contact piece with each other in electrical and in particular in mechanical contact.
  • the off state and electrically separate the high-voltage switching device comprising a Maisele- are at least element and the at least one mating contact piece in a stand From ⁇ one another, wherein no electrical flashover or arcing occur.
  • the at least one contact element is moved relative to the associated mating contact piece.
  • the mating contact piece may be spatially fixed, ie be designed as a fixed contact.
  • the at least one con- Clock element is designed as a contact or is attached to a contact arm in particular electrically conductive.
  • the contact is moved by a drive and / or a transmission, in particular controlled, for. B. to visibly outward represent a separate flow path and thus the off state.
  • a rotary disconnector z. B. the movement as a rotational movement of the contact arm to a particular special ⁇ vertical axis to the longitudinal axis of the contact arm.
  • the object of the present invention is the avoidance or reduction of the problems described above.
  • it is an object to provide a contact arrangement for a high-voltage switchgear and its use and manufacture ben, which allows a good and safe, stable contact with time between at least one contact element and a GE gentitle founded in the on state of the high-voltage switching device with less power dissipation. With high power losses associated costs are to be avoided and damage to a power grid, which is connected to the high voltage switching device should be he ⁇ -making proper contact arrangement avoided.
  • the contact arrangement should be simple and inexpensive to produce and easy to install.
  • the contact arrangement should be versatile, in particular by using standardization.
  • the specified object is achieved by a con ⁇ tact arrangement for a high-voltage switching device with the features according to claim 1 and / or by using the contact arrangement according to claim 11 and by a method for producing the contact arrangement according to claim 15.
  • Advantageous embodiments of the contact arrangement according to the invention for a high-voltage switching device and / or the use of the contact arrangement and of the method for producing the contact arrangement are specified in the subclaims. In this case, objects of the main claims with each other and with features of subclaims and features of the dependent claims can be combined with each other.
  • a contact arrangement according to the invention for a high-voltage switching device comprises at least one movable contact arm with at least two contact elements for electrically contacting a mating contact piece.
  • two contact elements are arranged opposite to each other and form a Kon ⁇ tact finger pair.
  • the use of at least two opposing contact elements, which form a pair of contact fingers, enables stable contact over time between the contact elements and the mating contact piece in the switched-on state of the high-voltage switching device.
  • the power loss and associated costs are minimized, and damage in the power grid, which is connected to the high-voltage switching device is ⁇ avoided.
  • the contact elements may be U-shaped, wherein the openings of the U-shape of the contact elements of a contact ⁇ finger-pair can be arranged facing each other in particular. Characterized the contact elements form two contact surfaces ⁇ respectively at the ends of the U-shape from, are mechanically stable and can be integrated well in the contact arm and fixed to a mechanically stable and highly electrically conductive.
  • the contact elements may be rod-shaped, with a U-shaped cross-section, wherein opposite's ⁇ angle of the U shape having the same length L.
  • the mating contact piece can be mechanically through the U-shaped contact elements are clamped cally, whereby a good temporal and me ⁇ chanical stability of the electrical contact between the counter-contact piece and the contact elements is reached.
  • four contact surfaces are formed by two U-shaped contact elements with the mating contact piece, which ensure good electrical contact with minimized power loss.
  • Edges and corners of the contact elements may be rounded, in particular all edges and corners, each with a radius corresponding to the position on the contact element. This avoids or at least reduces corona phenomena and possible flashovers at edges and edges.
  • the contact arm may comprise at least one pair of profile rods which at least partially surrounds at least one contact finger pair.
  • the contact finger pair is kept mechanically stable.
  • the pair of contact fingers Arranged with a mating contact piece between the pair of contact fingers, in the switched-on state of the high-voltage switching device, the pair of contact fingers can be pressed against the mating contact piece, from opposite sides.
  • the mating contact piece between the contact fingers of the contact finger pair is clamped and a good mechanical ⁇ shear and electrical contact is stable between the contact finger pair and the mating contact piece, via the contact finger pair an electrical contact with the profile rod pair, ie exists over the contact arm.
  • the contact elements may have holes for fasteners.
  • the contact elements can be fixed electrically conductively to at least one fastening element in each case on a profile bar, in particular via at least one
  • the contact elements may be made of copper or comprise copper as a material, wherein the contact elements may be silvered in particular. Copper and especially silver-plated copper are good electrical conductors and can give good electrical contact.
  • At least one mating contact piece may be comprised by the contact arrangement, in particular at least one fixed contact, which comprises a plate-shaped contact element, wherein the plate-shaped contact element may be made of copper or may comprise copper as material, in particular silvered on a contact surface.
  • the plate-shaped contact element can be clamped in a closed state of the high-voltage GmbHgerä ⁇ tes of at least one pair of contact fingers, in particular with good electrical contact between the at least one contact finger pair and the clamped plate-shaped contact element.
  • a contact element may in each case form two contact surfaces with the associated mating contact piece in the closed state of the high-voltage switching device, in particular with a size of the contact surfaces, which may be dependent on the length of the contact element. This allows the length of the contact member to design and dimension of the high-voltage switching device for certain current values successes gene. Two contact surfaces instead of increasing the reliability of the contact in the closed state of the high tensioning ⁇ -voltage switching device, even at z. B. unwanted movements of the contact by z. As environmental influences such as wind and / or ice.
  • the at least one movable contact arm may have a number of contact finger pairs, depending on the rated current and / or short-circuit current of the high-voltage switching device.
  • the at least one movable contact may in particular each one, two, three or more contact fingers pairs aufwei ⁇ sen. As a result, the design or dimensioning of the high-voltage GmbHgerä ⁇ tes done for certain current values on the number of contact finger pairs.
  • a use according to the invention of the contact arrangement comprises a use of the contact arrangement in a high-voltage circuit breaker, in particular in a rotary disconnect switch, or in a lever disconnector, in particular toggle disconnector, or in a single or double pivot disconnector as a high voltage switching device, or a use of the contact arrangement in a high voltage earthing switch as a high voltage switching device.
  • a switching device can be used in the manner of a horizontal switching device or in the manner of a vertical switching device.
  • the at least one contact element in particular all contact elements, may be in electrical and / or mechanical contact with at least one, in particular all, respective associated mating contact pieces of the high-voltage switching device.
  • a mating contact piece in particular formed as a fixed contact, between at least two opposing contact elements, which are each ⁇ out with U-shaped profile and are arranged on opposite, movable profile bars are clamped, in particular by at least one Spring element, in particular in operative connection with at least one spacer element.
  • An inventive method for producing a contact arrangement comprises that the contact elements of sheet metal bent parts and / or U-shaped semifinished product and / or by milling a groove in a rod material are generated U-shaped, and / or that the contact elements be electrically conductively mounted in U-shaped profile bars, in particular by screwing, riveting, soldering, welding and / or gluing in opposite profile bars, wherein the openings of the U-shape of a profile bar pair and the openings of the U-shape of a contact element pair respectively be arranged facing each other.
  • FIGS. 1 to 4 exemplary embodiments of the invention will be shown schematically in FIGS. 1 to 4 and described in more detail below.
  • the figure 1 shows schematically in an oblique view the front of a contact arrangement 1 according to the invention for a high-voltage switching device with three contact finger pairs 4, each pair of contact fingers 4 is comprised of a pair of profile rods 11 of the contact arm 2, and schematically in side view the Contact arrangement 1 of Fig. 1 in electrical and mechanical contact with a plate-shaped contact element 18 of a mating contact piece 17, and schematically in plan view a contact element 3 of the contact arrangement 1 of Figure 1 in detail, and schematically a cross section of the contact element 3 of Figure 3 in detail, along the width of the contact element 3rd
  • FIG. 1 diagrammatically shows, in an oblique view, the front side of a contact arrangement 1 according to the invention for a high-voltage switching device with three contact finger pairs 4.
  • Each contact finger pair 4 is in each case of a profile gene pair 11 encompasses or surrounds.
  • the profiled rod pairs 11 with the associated contact finger pairs 4 form a contact arm 2 of the high-voltage switching device.
  • Each contact ⁇ finger-pair 4 consists of two contact elements 3, which are formed in profile, ie in cross-section U-shaped.
  • the two U-shaped contact elements 3 are so arranged opposite each other ⁇ one another, that the open sides of the U-form pointing to each other.
  • Each profile bar pair 11 consists of two profile bars 6, which are also U-shaped in profile, ie in cross section.
  • the two U-shaped profile bars 6 are arranged opposite each other such that the open sides of the U-shape face each other.
  • the profile bars 6 have a greater width than the contact elements 3.
  • a contact element 3 is arranged at the end along the longitudinal axis of the profile bar 6 parallel to the profile bar 6, fitted into the U-shaped opening and z. B. via a spacer such. B. a washer 16 spaced from the profile bar 6 attached.
  • the opening of the U-shape of the profile bar 6 and the opening of the U-shape of the ⁇ orderly contact element 3, which is located in the profile bar 6, point in the same direction.
  • the contact elements 3 are each on the associated Pro ⁇ filstange 6 via fasteners 13, such. B. screws 14 with nuts 15, attached.
  • Washers 16 may be arranged as a spacer between the contact element 3 and the profile bar 6, alternatively, not shown for simplicity in the figures, the contact elements 3 may also be arranged directly resting on the profile bar 6.
  • each contact ⁇ element 3 each have two fastening elements 13, that is, two screws 14, each with a nut 15 and a UN washer to 16 between the contact element 3 and the Pro ⁇ filstange 6, electrically conductively connected to the associated profile bar 6 mechanically fastened.
  • Spring elements 19 may be provided on the profile bar 6 in order to press or press spaced apart, opposite profile bars 3, and thus the spaced, opposite contact elements 3 fastened in them.
  • the contact assembly 1 of FIG. 1 is shown schematically, in side view.
  • the contact arm 2 with the environmentally framed profile bars 6 and contact elements 3, is in electrical and mechanical contact with a plate-shaped contact element 18 of a counter-contact piece 17.
  • the Kon ⁇ clock elements 3 to the profile bars 6 form, in cooperation with the mating contact piece 17 an electrical Contact.
  • the plate-shaped contact element 18 of Yukon ⁇ contact piece 17 is clamped by the profiled rod pairs 11 with the associated contact finger pairs 4.
  • the contact finger pairs 4 can be more compressed by the spring elements 19 at the end of the contact arm 2, ie the contact elements 3 of a contact finger pair 4 have ei ⁇ NEN smaller distance from each other, in particular compared with the thickness of the plate-shaped contact element 18th
  • the high-voltage switching device is moved from an open to a closed ⁇ nen, ie contacted state .
  • the plate-shaped contact element 18 of the mating contact piece 17 is pushed between the opposing contact elements 3 of the contact finger pairs 4 and the contact arm 2 pushes the contact elements 3 above and below the plate-shaped Maisele ⁇ ment 18.
  • the contact pressure of the spring elements 19 results in a mechanically and electrically stable Contact between the contact elements 3 of the contact arm 2 and the plate-shaped contact element 18 of the mating contact piece 17.
  • the contact arm 2 is rotated in the opposite direction about the vertical axis.
  • the plate-shaped contact element 18 of the mating contact piece 17 is pushed out of the gap between the opposing contact elements 3 of the contact finger pairs 4 and the contact arm 2 pushes the contact elements 3 in a position spaced from the plate-shaped contact element 18.
  • the contact pressure of the spring elements 19 moves the Kunststoffele ⁇ 3 of a contact finger pair 4 further toward each other and the spacer element 20 keeps the contact elements 3 at egg ⁇ NEN minimum distance.
  • a contact element 3 of the contact arrangement 1 of Figures 1 and 2 is shown in detail schematically in plan view.
  • the U-shaped contact element 3 is connected to the opening the U-shape pointing upwards.
  • the contact element 3 is rail-shaped or rod-shaped, with two
  • the contact element 3 of Figure 3 in detail is shown schematically in cross section, perpendicular to the longitudinal axis Darge ⁇ .
  • the U-shape is essentially cut in the form of a rectangle cut in half, cut along a parallel to a rectangle side, with rounded corners and edges 7, 8, 9.
  • the legs 5 are perpendicular ⁇ right on the central part 21 of the contact element 3, each considered a leg 5 on the right and left side of the contact ⁇ element 3 along the cross section.
  • the legs 5 are arranged parallel to one another, formed as parallel plates, with rounded inner and outer edges 7, 8 in the region of the transition to the central part 21 and rounded edges 9 at the upper leg end.
  • the legs 5 of a contact ⁇ elements 3 are the same length formed with leg length L, ie, the length L of the legs 5 in cross section.
  • leg length L ie, the length L of the legs 5 in cross section.
  • a bore is shown in Figure 4 in cross-section illustrated in section 12, for performing fasteners. 13
  • Contact elements 3 can z. B. of highly conductive metals such as copper, aluminum or steel or of alloys of these metals and with Coatings such. As silver be provided for a good electrical contact.
  • silver in particular partially be provided in certain areas, for a good electrical contact and high mechanical stability.
  • bolts may also be used as fastening elements 13, or a fastening may be used, for example.
  • contact elements 3 can also have shapes such as V-shape or U-shape, with a half-round central portion 21 between the legs 5 of the U-shape.
  • There may be more than one spring element 19 and / or spacer element 20 per profile rod pair 11 may be included.
  • the number of profile rod pairs 11 with contact finger pairs 4 can be adapted to the field of application of the high-voltage switching device, in particular ⁇ with regard to the current carrying capacity and / or the short-circuit current strength.

Landscapes

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

Abstract

L'invention concerne un système de contact (1) destiné à un appareil de commutation haute tension, ainsi que son utilisation et sa fabrication. Ce système de contact (1) comprend au moins un bras de contact (2) mobile pourvu d'au moins deux éléments de contact (3) destinés à établir un contact électrique avec une pièce de contact complémentaire (17). Deux éléments de contact (3) sont agencés respectivement l'un en vis-à-vis de l'autre et forment une paire de doigts de contact (4). Le système de contact (1) est utilisé dans un sectionneur haute tension ou dans un sectionneur de mise à la terre haute tension.
EP17739934.2A 2016-08-03 2017-07-06 Système de contact pour appareil de commutation haute tension, son utilisation et sa fabrication Active EP3469611B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17739934T PL3469611T3 (pl) 2016-08-03 2017-07-06 Układ stykowy dla łącznika wysokiego napięcia oraz jego zastosowanie i wytwarzanie

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016214368.9A DE102016214368B4 (de) 2016-08-03 2016-08-03 Kontaktanordnung für ein Hochspannungs-Schaltgerät sowie dessen Verwendung und Herstellung
PCT/EP2017/067014 WO2018024438A1 (fr) 2016-08-03 2017-07-06 Système de contact pour appareil de commutation haute tension, son utilisation et sa fabrication

Publications (2)

Publication Number Publication Date
EP3469611A1 true EP3469611A1 (fr) 2019-04-17
EP3469611B1 EP3469611B1 (fr) 2022-02-23

Family

ID=59350903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17739934.2A Active EP3469611B1 (fr) 2016-08-03 2017-07-06 Système de contact pour appareil de commutation haute tension, son utilisation et sa fabrication

Country Status (5)

Country Link
EP (1) EP3469611B1 (fr)
CN (1) CN109564830B (fr)
DE (1) DE102016214368B4 (fr)
PL (1) PL3469611T3 (fr)
WO (1) WO2018024438A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018213028B4 (de) * 2018-08-03 2020-07-02 Siemens Aktiengesellschaft Trennschalter mit zwei relativ zueinander bewegbaren Kontaktteilen

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1753688U (de) * 1954-03-23 1957-10-10 Siemens Ag Elektrischer hebelschalter.
DE1059081B (de) 1957-04-30 1959-06-11 Wickmann Werke Ag Doppeltrennmesser fuer Schaltgeraete
DE1169546B (de) * 1960-01-13 1964-05-06 Driescher Spezialfab Fritz Hochspannungs-Trennschalter mit einem einstellbaren Betaetigungsisolator
US3339037A (en) * 1965-07-12 1967-08-29 S & C Electric Co High voltage switch construction
DE1640997B1 (de) * 1967-12-23 1971-06-03 Licentia Gmbh Erdungs- und Kurzschliessvorrichtung fuer elektrische Schaltanlagen
US3694592A (en) * 1971-02-11 1972-09-26 Westinghouse Electric Corp Isolating switch having improved separable contact assembly
CH617533A5 (en) 1977-09-29 1980-05-30 Sprecher & Schuh Ag High-voltage isolator
JPH09180589A (ja) * 1995-12-28 1997-07-11 Energy Support Corp 開閉器
DE20023027U1 (de) * 2000-11-07 2002-11-14 Peterreins Schalttechnik GmbH, 91126 Schwabach Lasttrennschalter mit mindestens einem Sicherungshalter
CN2893899Y (zh) * 2006-01-23 2007-04-25 阎淼江 一种高压隔离开关触头组件
CN201340822Y (zh) * 2009-01-16 2009-11-04 丹东枫达电力设备制造有限公司 户外交流高压隔离开关
DE102011118894B3 (de) * 2011-11-18 2013-01-31 Schaltbau Gmbh Hochstromschalter
CN203895341U (zh) * 2014-05-30 2014-10-22 江山市森源电器有限公司 一种高压隔离开关用的组合触头
CN105788943B (zh) * 2016-05-17 2017-12-19 国网山东省电力公司济南市长清区供电公司 一种隔离开关静触头

Also Published As

Publication number Publication date
BR112019000415A2 (pt) 2019-04-30
CN109564830B (zh) 2020-11-20
WO2018024438A1 (fr) 2018-02-08
CN109564830A (zh) 2019-04-02
PL3469611T3 (pl) 2022-06-20
DE102016214368B4 (de) 2018-10-25
DE102016214368A1 (de) 2018-02-08
EP3469611B1 (fr) 2022-02-23

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