EP4018466A1 - Ensemble pour disjoncteur haute tension, et disjoncteur haute tension correspondant - Google Patents

Ensemble pour disjoncteur haute tension, et disjoncteur haute tension correspondant

Info

Publication number
EP4018466A1
EP4018466A1 EP20771462.7A EP20771462A EP4018466A1 EP 4018466 A1 EP4018466 A1 EP 4018466A1 EP 20771462 A EP20771462 A EP 20771462A EP 4018466 A1 EP4018466 A1 EP 4018466A1
Authority
EP
European Patent Office
Prior art keywords
assembly
circuit breaker
voltage circuit
field electrode
contact piece
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
EP20771462.7A
Other languages
German (de)
English (en)
Other versions
EP4018466C0 (fr
EP4018466B1 (fr
Inventor
Radu-Marian Cernat
Sebastian Hübner
Martin KREHNKE
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 Energy Global GmbH and Co KG
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 Energy Global GmbH and Co KG filed Critical Siemens Energy Global GmbH and Co KG
Publication of EP4018466A1 publication Critical patent/EP4018466A1/fr
Application granted granted Critical
Publication of EP4018466C0 publication Critical patent/EP4018466C0/fr
Publication of EP4018466B1 publication Critical patent/EP4018466B1/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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
    • 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
    • H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
    • H01H33/245—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring using movable field electrodes
    • 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
    • H01H2033/028—Details the cooperating contacts being both actuated simultaneously in opposite directions

Definitions

  • the invention is based on an assembly for a high-voltage circuit breaker, with (i) one of two permanent current contact pieces of the high-voltage circuit breaker which can be moved relative to one another along a longitudinal axis of the switch and which is stationary with respect to the assembly, (ii) one of two along a longitudinal axis of the switch relative to one another movable arcing contact pieces of the high-voltage circuit breaker, which is at least partially surrounded by the continuous current contact piece coaxially, (iii) a field electrode which surrounds the arcing contact piece of the assembly when the high-voltage circuit breaker is switched off, moves into the switched-off position during the switching-off process and is withdrawn in the switched-on state behind its position assumed in the switched-off state and (iv) a transmission via which the field electrode can be driven, the transmission having a construction part that is electrically connected to the field electrode and in the direction of the Weglä ngsachse is guided displaceably.
  • the invention also relates to a corresponding high-voltage circuit breaker.
  • the publication WO 98/032142 A1 shows a high-voltage circuit breaker and an assembly for this high-voltage circuit breaker, with (i) one of two continuous current contact pieces of the high-voltage circuit breaker which can be moved relative to one another along a switch longitudinal axis and which is stationary with respect to the assembly, (ii) one of two arcing contact pieces of the high-voltage power switch, which is at least partially surrounded by the continuous current contact piece, coaxially, (iii) a field electrode, which in the switched-off state of the high-voltage circuit breaker the arcing contact piece surrounds the assembly, moves during the disconnection process into the disconnected position and is withdrawn in the switched-on state behind its position assumed in the switched-off state and (iv) a gear via which the field electrode can be driven, the gear having a component that is part of the Field electrode is electrically connected and slidably guided in the direction of the switch's longitudinal axis.
  • this component for example, a coupling rod (called
  • a somewhat different high-voltage circuit breaker with two arcing contact pieces that can be driven in opposite directions is presented in the document DE 19727 850 CI.
  • the continuous current and the arcing contact pieces are moved synchronously with one another.
  • a fixed Treasurestromkon contact piece and an arc contact piece coupled via a transmission are provided on the opposite side. Since the position of the continuous current and arcing contact pieces to one another changes on the opposite side, a likewise movable field control electrode (or another field control element) is required, which shields the field strength at the arcing contact piece in the open state and is withdrawn in the closed state Avoid collisions.
  • This field (control) electrode can be attached directly to the insulating nozzle or moved via a gear unit.
  • the field electrode must not be at free potential.
  • the field electrode must not be connected to the arcing contact piece, in order to avoid parallel current paths via the gear unit, which could lead to the individual components becoming welded together.
  • the field electrode was contacted via the gearbox, whereby the arcing contact system is decoupled from the gear unit via a combination of insulating washers and insulating pin.
  • the field electrode is firmly screwed to the assembly, formed from the clamping ring, couplings and cross members, and has a good electrical connec tion for this purpose.
  • the movement is transmitted from the guide rails connected to the insulating nozzle via two coupling levers and driver pins.
  • the sequence of movements is controlled via the tracks in the bearing cheeks, the electrode having a defi ned end position for the OFF position in which it waits.
  • the field electrode is firmly screwed to the insulating nozzle and is moved synchronously with it.
  • the potential connection is implemented via a guide rail that is connected to the gearbox of the arcing contact. In this case, too, there may be an undefined contact situation.
  • the invention is based on the object to ensure a clean potential connection of the field electrode.
  • a gear via which the field electrode can be driven wherein the gear has a component that is electrically connected to the field electrode and is guided displaceably in the direction of the switch longitudinal axis
  • the assembly in particular its gear, at least one sliding contact -Has device that electrically ver binds the component with egg nem fixed component of the transmission, which is firmly connected to the continuous current contact piece of the assembly.
  • the corresponding sliding contact can alternatively contact the component or the component fixed to the assembly in a sliding manner.
  • Sliding contacts are therefore used for a secure potential connection of the field electrode. These are implemented in such a way that no parallel current paths can form between the field electrode and the contact system, which could lead to welding in the transmission.
  • the sliding contacts are attached in the vicinity of the already provided contact and increase their reliability.
  • the at least one sliding contact device has at least one spring tab with a contact element and / or at least one contact element and at least one compression spring applying force to the respective contact element and / or at least one leaf spring.
  • the arrangement of the contact element and the contact element are acted upon by force in a compression spring in the component or component.
  • formed recess are arranged, which in particular also forms a guide for the contact element.
  • the transmission has a first drivable coupling rod which is coupled to an insulating nozzle and extends in the direction of the switch's longitudinal axis.
  • the field electrode is coupled directly to this arrangement. Accordingly, it is provided in particular that the first coupling rod forms the component that is electrically connected to the field electrode.
  • the gearbox also has a pivotably attached to the first coupling rod He bel, with one attached to the pivotable part of the lever and the pivot plane penetrating pin on which the field electrode is and a link guide in which the pin slides on during the switch-off movement.
  • the link guide is designed in such a way that a first part of the link guide runs approximately parallel to the longitudinal direction of the first coupling rod and that a second part of the link guide allows the pin to move perpendicular to the longitudinal axis of the switch.
  • the link guide is formed in the component of the transmission that is fixed to the assembly.
  • the field electrode is connected to a cross member via at least one second coupling rod running parallel to the first coupling rod is, which forms part of the construction electrically connected to the field electrode.
  • This second coupling rod or the traverse can then be regarded as the component mentioned at the outset.
  • the at least one sliding contact device is arranged on a side of the transmission opposite the arcing contact piece of the assembly. At this point (far away from the area of the arc) there are comparatively few impurities that can disrupt the contact.
  • this circuit breaker has an assembly mentioned above. This includes:
  • One embodiment of the high-voltage circuit breaker according to the invention provides that it comprises an insulating nozzle that is firmly connected to the drivable contact pieces.
  • Fig. 1 shows a (hereinafter referred to as an assembly) part of a high-voltage circuit breaker according to one embodiment of the invention in a sectional representation
  • Fig. 2 shows the installation location of a first variant of a sliding contact device of the assembly
  • Fig. 3 details of this first variant of the Schleifkon contact device
  • FIG. 13 shows further details of the sliding contact device from FIG. 12.
  • Fig. 1 shows part of a high-voltage power switch, which is hereinafter called assembly 10 for the high-voltage circuit breaker.
  • the circuit breaker has the part shown here with a driven arcing contact piece 12 and a fixed Treasurestromkon contact piece 14, which face a (not shown) other part of the high-voltage circuit breaker with a further drivable arcing contact piece and a drivable permanent current contact piece.
  • the drivable Lichtbo gentitle firms 12 is surrounded by an insulating nozzle 16 which is firmly connected to the drivable contact pieces of the circuit breaker.
  • Fig. 1 shows a detail of the fixed permanent current contact piece 14 of the high-voltage circuit breaker, into which the axially drivable permanent current contact piece, not shown here, with the insulating nozzle 16 attached to it and the further axially drivable and also not shown arcing contact piece of the other part of the high voltage from the left -Circuit breaker can retract.
  • 1 shows the position of the insulating nozzle 16 in the switched-on position of the drivable continuous current contact piece (not shown). In this switched-on position, the Iso lierdüse 16 surrounds the contact pieces of the other part of the high-voltage circuit breaker driven in opposite directions arcing contact piece 12 over its entire length.
  • two first coupling rods 20 are attached symmetrically to the longitudinal axis of the circuit breaker. which on the one hand drive a link guide 28, a traverse 30 and second coupling rods 32 as well as a field electrode 34 functioning as a field control element via two levers 26 each provided with a pin 22 and pivotable about axes 24 and of which on the other hand a second coupling rod 32 (the lower in Figure) for driving the arcing contact piece 12 by means of a deflection gear additionally has a pin 36 which is arranged transversely to the thrust direction of the lower first coupling rod 20, which is provided with a U-shaped cross section.
  • the lower first coupling rod 20 can also have an L- or T-shaped cross-section, each cross-sectional part forming a sliding surface for guiding the coupling rod 18 along a bearing cheek 40 formed on a component 38 fixed to the assembly.
  • the component 38 fixed to the assembly from this example is also called a circuit board 38.
  • the circuit board 38 is attached to a contact bridge 42 of a sliding contact 44 connected to the fixed permanent current contact piece 14 and is provided with two longitudinally symmetrical to the center line arranged bearing cheeks 40, which are provided for guiding the upper, provided for driving the field electrode 34 first coupling rod 20 and serve to guide the lower, for driving both the field electrode 34 and the arcing contact piece 12 provided first coupling rod 20.
  • Two bearing cheeks 46 for guiding a flat head 48 shown in FIG. 1, which is located at the rear end of the arc contact piece 12, are also incorporated into the plate 38.
  • the link guides 28 for the pins 22 of the gear for the field electrode 34 are incorporated into the board 38.
  • the bearing cheeks 46 for guiding the head 46 and the link guides 28 are arranged one behind the other in the longitudinal direction of the board 38, the bearing cheeks 46 for guiding the head 48 facing the free end 50 of the arcing contact piece 12.
  • Two boards 38 are arranged mirror-symmetrically to the longitudinal axis of the high-voltage circuit breaker and enclosed by the cross member 30; this traverse 30 connects one on the other hand, the two second coupling rods 32 together; on the other hand, vertical slots 52 for the engagement of the pins 22 are provided in the side walls of the cross member 30.
  • the traverse 30 also encloses the two first coupling rods 20, these being held by two spacers from the second Kop pelstangen 32 at a distance.
  • the flat head 48 of the arcing contact piece 12 is guided in the bearing cheeks of the boards 34.
  • the flat head 42 is provided with an elongated hole 54 running perpendicular to the first coupling rod 20.
  • a two-armed control lever 56 Gela Gert which is fork-shaped at one end and provided with a pin 58 at its other end.
  • the pin 58 engages in the elongated hole 54 on the head 482.
  • the fork-side end has two prongs 60 and 62 which enclose a mouth-like opening 64 into which the pin 36 of the lower first coupling rod 20 can engage.
  • the two prongs 60, 62 are provided on the outside with a contact surface 66 or 68, with which the control lever 56 - depending on its position - comes to rest on a sliding track forming the bottom 70 of the U-shaped cross-sectional profile of the lower first coupling rod 20 .
  • the stops 72 and 74 on the plates 38 ensure that the control lever 56 remains in the respective contact position.
  • the two on position positions represent end positions between which the control lever 56 is moved under the action of the pin 58. So that the fork-like end can perform a rotary movement around the aforementioned axis of rotation A, the lower first coupling rod 20 is provided with an elongated slot 75 in the bottom 70 of the U-shaped Querschnit theses.
  • a similar slot is optionally provided in the lower second coupling rod 32.
  • the traverse 30 is a component 76 electrically connected to the field electrode 34 (via the second coupling rod 32), which is electrically connected via a sliding contact device 78 of the assembly 10 to a component of the transmission fixed to the assembly, namely the circuit board 38.
  • the second coupling rod 32 is another component 76 that is electrically connected to the field electrode 34.
  • FIGS. 2 to 13 describe details of the sliding contact device 78.
  • FIG. 2 shows the installation location of a first variant of the sliding contact device 78. This is located between the cross member 30 and the board 38.
  • FIG. 3 shows details of a first variant of the sliding contact device 78.
  • Two sliding contact devices 78 are located in the edge region of the cross member 30. Each has a spring tab 80 with a contact element 82 at the free end of the spring tab 80. It makes sliding contact with the surface of the circuit board 38 with the contact element 82.
  • the sliding contact device 78 is completely covered by the cross member 30.
  • a second variant of the sliding contact device 78 is shown in a sectional view.
  • Two sliding contact devices 78 are located in a central area of the cross member 30.
  • Each has a spring tab 80 with a contact element 82 at the free end of the spring tab 80. It makes sliding contact with the surface of the corresponding circuit board 38 with the contact element 82.
  • the free ends of the spring tab 80 protrude from under the cross member 30.
  • the plates 38 are surrounded by two opposing traverse elements of the traverse 30.
  • FIG. 5 shows another illustration of the second variant of the sliding contact device 78.
  • FIG. 6 a third variant of the sliding contact device 78 is shown.
  • a sliding contact device 78 is located in a central area of the transverse 30. This has a contact element 82 and a compression spring 84 which acts on the contact element 82 with force.
  • the arrangement of the contact element 82 and the contact element 82 with force be impacting compression spring 84 are arranged in a recess 86 formed in the cross member 30, which also forms a guide for the contact element 82.
  • the sliding contact device 78 is completely covered by the cross member 30.
  • FIGS. 7 to 9 show further details on this third variant of the sliding contact device 78.
  • a fourth variant of the sliding contact device 78 is shown.
  • a sliding contact device 78 In a central area of the traverse 30 there is a sliding contact device 78.
  • This has a leaf spring 88 as a spring element.
  • the leaf spring 88 is arranged in a recess formed in the cross member 30.
  • the sliding contact device 78 is completely covered by the cross member 30.
  • Fig. 12 shows a sliding contact device 78 at another point of the assembly 10 or the transmission, namely between tween the component 38 fixed to the assembly, also mentioned here, and the first coupling rod 20.
  • the corresponding variable riante of the high-voltage circuit breaker type can be found in the document DE 19727 850 CI, for example.
  • the sliding contact device 78 has two spring tabs 80, each with a contact element 82 at the free end of the spring tab 80. With the contact element 82 it makes grinding contact with the surface of the first coupling rod 20 or guide rail. The free ends of the spring tab 80 protrude from below from the board 38.
  • the coupling rod 20 is the component 76 which is electrically connected via the sliding contact device 78 to the component 38 of the transmission, which component is fixed to the assembly and is designed as a circuit board.
  • FIG. 13 finally shows further details of the sliding contact device 78 from FIG. 12.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)

Abstract

L'invention concerne un ensemble (10) pour un disjoncteur haute tension, comprenant l'une de deux pièces de contact de courant continu de disjoncteur haute tension (14) qui peuvent être déplacées l'une par rapport à l'autre le long d'un axe longitudinal d'interrupteur, ladite pièce de contact de courant continu étant fixe par rapport à l'ensemble (10), l'une de deux pièces de contact d'arc de disjoncteur haute tension (12) qui peuvent être déplacées l'une par rapport à l'autre le long d'un axe longitudinal d'interrupteur, ladite pièce de contact d'arc étant au moins partiellement entourée de façon coaxiale par la pièce de contact de courant continu (14), une électrode de champ (34) qui entoure la pièce de contact d'arc (12) de l'ensemble (10) quand le disjoncteur haute tension est désactivé, se déplace jusqu'à la position de désactivation pendant le processus de désactivation, et est ramenée derrière la position prise par l'électrode de champ dans l'état désactivé quand le disjoncteur est activé, et un mécanisme d'engrenage par l'intermédiaire duquel l'électrode de champ (34) peut être entraînée, le mécanisme d'engrenage comportant un composant (76) qui est connecté électriquement à l'électrode de champ (34) et qui est guidé de manière mobile dans la direction de l'axe longitudinal d'interrupteur. Selon l'invention, l'ensemble (10) comporte au moins un dispositif de contact coulissant (78) qui connecte électriquement le composant (76) à une partie de mécanisme d'engrenage (38) fixée à l'ensemble, ladite partie étant reliée rigidement à la pièce de contact de courant continu (14) de l'ensemble (10). L'invention concerne en outre un disjoncteur haute tension comprenant un tel ensemble (10).
EP20771462.7A 2019-09-23 2020-08-31 Ensemble pour disjoncteur haute tension, et disjoncteur haute tension correspondant Active EP4018466B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019214432.2A DE102019214432B4 (de) 2019-09-23 2019-09-23 Baugruppe für einen Hochspannungs-Leistungsschalter und entsprechender Hochspannungs-Leistungsschalter
PCT/EP2020/074203 WO2021058231A1 (fr) 2019-09-23 2020-08-31 Ensemble pour disjoncteur haute tension, et disjoncteur haute tension correspondant

Publications (3)

Publication Number Publication Date
EP4018466A1 true EP4018466A1 (fr) 2022-06-29
EP4018466C0 EP4018466C0 (fr) 2023-11-01
EP4018466B1 EP4018466B1 (fr) 2023-11-01

Family

ID=72473507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20771462.7A Active EP4018466B1 (fr) 2019-09-23 2020-08-31 Ensemble pour disjoncteur haute tension, et disjoncteur haute tension correspondant

Country Status (4)

Country Link
EP (1) EP4018466B1 (fr)
CN (1) CN114424313B (fr)
DE (1) DE102019214432B4 (fr)
WO (1) WO2021058231A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116130314A (zh) * 2023-03-08 2023-05-16 西安西电开关电气有限公司 一种灭弧室屏蔽双向运动结构和方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH644969A5 (de) * 1979-09-25 1984-08-31 Sprecher & Schuh Ag Druckgasschalter.
DE19622460C2 (de) * 1996-05-24 1998-04-02 Siemens Ag Hochspannungs-Leistungsschalter mit zwei antreibbaren Schaltkontaktstücken
DE29609909U1 (de) * 1996-05-24 1996-08-22 Siemens AG, 80333 München Hochspannungs-Leistungsschalter mit einer Isolierstoffdüse
DE19727850C1 (de) * 1997-06-26 1998-09-17 Siemens Ag Hochspannungs-Leistungsschalter mit zwei entgegengesetzt antreibbaren Lichtbogenkontaktstücken
EP0953199B1 (fr) * 1997-01-17 2001-12-05 Siemens Aktiengesellschaft Disjoncteur haute tension a electrode de champ mobile axialement
DE102012200238A1 (de) * 2012-01-10 2013-07-11 Siemens Aktiengesellschaft Elektrisches Schaltgerät
DE102012211376A1 (de) * 2012-06-29 2014-04-10 Siemens Aktiengesellschaft Schaltanordnung
DE102013200918A1 (de) * 2013-01-22 2014-07-24 Siemens Aktiengesellschaft Schaltgeräteanordnung
EP3151261B1 (fr) * 2015-10-02 2019-06-12 Siemens Aktiengesellschaft Disjoncteur à came pour moyennes et hautes tensions

Also Published As

Publication number Publication date
EP4018466C0 (fr) 2023-11-01
EP4018466B1 (fr) 2023-11-01
DE102019214432A1 (de) 2021-03-25
CN114424313A (zh) 2022-04-29
DE102019214432B4 (de) 2024-02-08
WO2021058231A1 (fr) 2021-04-01
CN114424313B (zh) 2024-04-05

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