EP4018466B1 - Ensemble pour disjoncteur haute tension, et disjoncteur haute tension correspondant - Google Patents

Ensemble pour disjoncteur haute tension, et disjoncteur haute tension correspondant Download PDF

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Publication number
EP4018466B1
EP4018466B1 EP20771462.7A EP20771462A EP4018466B1 EP 4018466 B1 EP4018466 B1 EP 4018466B1 EP 20771462 A EP20771462 A EP 20771462A EP 4018466 B1 EP4018466 B1 EP 4018466B1
Authority
EP
European Patent Office
Prior art keywords
assembly
circuit breaker
voltage circuit
field electrode
contact
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.)
Active
Application number
EP20771462.7A
Other languages
German (de)
English (en)
Other versions
EP4018466C0 (fr
EP4018466A1 (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 EP4018466B1 publication Critical patent/EP4018466B1/fr
Publication of EP4018466C0 publication Critical patent/EP4018466C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/24—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
    • H01H33/70—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
    • 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 continuous current contact pieces of the high-voltage circuit breaker that can be moved relative to one another along a switch longitudinal axis and which is fixed with respect to the assembly, (ii) one of two along a switch longitudinal axis relative to one another movable arcing contact pieces of the high-voltage circuit breaker, which is coaxially surrounded at least in sections by the continuous current contact piece, (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 behind its in the switched-on state The position assumed when switched off is retracted and (iv) a gear via which the field electrode can be driven, the gear having a component which is electrically connected to the field electrode and is guided in a displaceable manner in the direction of the switch longitudinal axis.
  • the invention further relates to a corresponding high-voltage circuit breaker.
  • High-voltage circuit breakers are e.g. B. from the DE 196 22 460 A1 , EP 0 025 833 A1 , DE 296 09 909 D1 , WO 98/32142 A1 , DE 10 2012 211376 A1 and WO 2017/055051 A1 known.
  • 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 that can be moved relative to one another along a switch longitudinal axis and which is fixed with respect to the assembly, (ii) one of two relative along a switch longitudinal axis mutually movable arc contact pieces of the high-voltage circuit breaker, which is coaxially surrounded at least in sections by the continuous current contact piece, (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 switch-off position during the switch-off process and is retracted behind its position in the switch-off state when switched on and ( iv) a transmission via which the field electrode can be driven, the transmission having a component which is electrically connected to the field electrode and is guided so as to be displaceable in the direction of the switch's longitudinal axis.
  • the field electrode must not be at free potential.
  • the field electrode must not be connected to the arc contact piece in order to avoid parallel current paths via the gearbox, which could lead to welding of the individual components.
  • the field electrode was contacted via the gear, with the arc contact system being decoupled from the gear via a combination of insulating disks and insulating pin.
  • the field electrode is firmly screwed to the assembly, which consists of a clamping ring, couplings and traverses, and has a good electrical connection.
  • the movement is transmitted from the guide rails connected to the insulating nozzle via two coupling levers and driving pins.
  • the movement sequence is controlled via the raceways in the bearing cheeks, with the electrode having a defined end position for the OFF position in which it remains.
  • 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 gear of the arc contact. In this case too, an undefined contact situation can arise.
  • the invention is based on the object of ensuring a clean potential connection of the field electrode.
  • Sliding contacts are therefore used to ensure 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 located close to the already provided contacting 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 which applies force to the respective contact element and/or at least one leaf spring.
  • the arrangement of contact element and the contact element with force acting compression spring are arranged in a recess formed in the component or in the component, 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 particularly provided that the first coupling rod forms the component that is electrically connected to the field electrode.
  • 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 deflect 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 traverse via at least one second coupling rod running parallel to the first coupling rod, which forms the component electrically connected to the field electrode.
  • This second coupling rod or the traverse can then be viewed as the component mentioned at the beginning.
  • the at least one sliding contact device is arranged on a side of the transmission opposite the arc contact piece of the assembly. At this point (far from the area of the arc) there are comparatively few impurities that can disrupt contacting.
  • One embodiment of the high-voltage circuit breaker according to the invention provides that it has an insulating nozzle includes, which is firmly connected to the drivable contact pieces.
  • the Fig. 1 shows a part of a high-voltage circuit breaker, which is hereinafter referred to as 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 continuous current contact piece 14, which are opposed by another part of the high-voltage circuit breaker (not shown) with a further drivable arcing contact piece and a drivable continuous current contact piece.
  • the drivable arc contact piece 12 is surrounded by an insulating nozzle 16, which is firmly connected to the drivable contact pieces of the circuit breaker.
  • the Fig. 1 shows a section of the fixed permanent current contact piece 14 of the high-voltage circuit breaker, into which the axially drivable, not shown here, continuous current contact piece 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 circuit breaker can enter from the left.
  • two first coupling rods 20 are attached symmetrically to the longitudinal axis of the circuit breaker, which on the one hand have a link guide 28, a cross member 30 and second coupling rods 32 as well as a link guide 28, each provided with a pin 22 and pivotable about axes 24
  • Drive field electrode 34 acting as a field control element and of which, on the other hand, a second coupling rod 32 (the lower one in the figure) for driving the arc contact piece 12 by means of a deflection gear additionally has a pin 36 which is transverse to the direction of thrust of the lower first coupling rod which is provided with a U-shaped cross section 20 is arranged.
  • the lower first coupling rod 20 can also have an L- or T-shaped cross section, with one cross-sectional part forming a sliding surface for guiding the coupling rod 18 along a bearing cheek 40 formed on a component fixed to the assembly 38.
  • the assembly-fixed component 38 from this example is also called circuit board 38.
  • the circuit board 38 is attached to a contact bridge 42 of a sliding contact 44 connected to the fixed continuous current contact piece 14 and is provided with two bearing cheeks 40 arranged symmetrically to the center line in the longitudinal direction, which are used to guide the upper first coupling rod 20 intended to drive the field electrode 34 and for guiding the lower first coupling rod 20 provided for driving both the field electrode 34 and the arc contact piece 12.
  • the link guides 28 for the pins 22 of the gear for the field electrode 34 are incorporated into the circuit 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, with the bearing cheeks 46 for guiding the head 48 facing the free end 50 of the arc contact piece 12.
  • Two circuit boards 38 are arranged mirror-symmetrically to the longitudinal axis of the high-voltage circuit breaker and enclosed by the traverse 30; On the one hand, this traverse 30 connects the two second coupling rods 32 to one another; on the other hand, vertical slots 52 are provided in side walls of the traverse 30 for the pins 22 to engage. - The traverse 30 also encloses the first two coupling rods 20, these being kept at a distance from the second coupling rods 32 by two spacers.
  • the flat head 48 of the arc contact piece 12 is guided in the bearing cheeks of the circuit boards 34.
  • the flat head 42 is provided with an elongated hole 54 that runs perpendicular to the first coupling rod 20.
  • a two-armed control lever 56 is mounted in the circuit boards 38 on a rotation axis A running vertically to the plane of the drawing, which is designed fork-shaped at one end and is provided with a pin 58 at the 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 tines 60, 62 are provided on the outside with a contact surface 66 and 68, with which the control lever 56 - depending on its position - comes into contact with a bottom 70 of the U-shaped cross-sectional profile of the lower first coupling rod 20, which forms a slideway. Stops 72 and 74 on the boards 38 ensure that the control lever 56 remains in the respective contact position.
  • the two contact 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 carry out a rotational movement about the axis of rotation A already mentioned, the lower first coupling rod 20 is provided with an elongated slot 75 in the bottom 70 of the U-shaped cross section. A similar one Slot is optionally provided in the lower second coupling rod 32.
  • the traverse 30 is a component 76 which is electrically connected to the field electrode 34 (via the second coupling rod 32) and 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. Accordingly, the second coupling rod 32 is another component 76 that is electrically connected to the field electrode 34.
  • the Fig. 2 shows the installation location of a first variant of the sliding contact device 78. This is located between the traverse 30 and the circuit board 38.
  • the Fig. 3 shows details of a first variant of the sliding contact device 78.
  • the edge region of the traverse 30 there are two sliding contact devices 78.
  • Each has a spring tab 80 with a contact element 82 at the free end of the spring tab 80. With the contact element 82 it contacts the surface of the circuit board 38 in a sliding manner.
  • 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.
  • Each has a spring tab 80 with a contact element 82 at the free end of the spring tab 80 on. With the contact element 82, it contacts the surface of the corresponding circuit board 38 in a grinding manner.
  • the free ends of the spring tab 80 protrude from under the cross member 30. In this illustration it can be seen that the boards 38 are surrounded by two opposing traverse elements of the traverse 30.
  • the Fig. 5 shows another representation of the second variant of the sliding contact device 78.
  • a third 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 contact element 82 and a compression spring 84 which applies force to the contact element 82.
  • the arrangement of contact element 82 and the contact element 82 with force acting 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 traverse 30.
  • a fourth variant of the sliding contact device 78 is shown in a central area of the traverse 30 in a central area of the traverse 30.
  • This has a leaf spring 88 as a spring element.
  • the leaf spring 88 is arranged in a recess formed in the crossmember 30.
  • the sliding contact device 78 is completely covered by the traverse 30.
  • the Fig. 11 shows further details of this fourth variant of the sliding contact device 78 in a sectional view.
  • the Fig. 12 shows a sliding contact device 78 at another point in the assembly 10 or the transmission, namely between the assembly-fixed component 38, also referred to here as the circuit board, and the first coupling rod 20.
  • the corresponding variant of the high-voltage circuit breaker type can be found, for example, in the publication DE 197 27 850 C1 remove.
  • 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 contacts the surface of the first coupling rod 20 or guide rail in a sliding manner. The free ends of the spring tab 80 protrude from the circuit board 38.
  • the coupling rod 20 is the component 76, which is electrically connected via the sliding contact device 78 to the fixed component 38 of the transmission, which is designed as a circuit board.
  • the Fig. 13 finally shows further details about the sliding contact device 78 Fig. 12 .

Landscapes

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

Claims (10)

  1. Module (10) pour un disjoncteur en haute tension, comprenant
    - une de deux pièces (14) de contact de courant permanent mobiles l'une par rapport à l'autre le long d'un axe longitudinal du disjoncteur en haute tension, qui est fixe par rapport au module (10),
    - une de deux pièces (12) de contact d'arc électrique mobiles l'une par rapport à l'autre le long d'un axe longitudinal du disjoncteur en haute tension, qui, au moins par endroits, est entourée coaxialement de la pièce (14) de contact de courant permanent,
    - une électrode (34) de champ, qui, dans l'état ouvert de le disjoncteur en haute tension, entoure la pièce (12) d'arc électrique du module (10), pendant l'opération d'ouverture se déplace dans la position d'ouverture et, dans la position de fermeture, est retournée derrière sa position prise dans l'état d'ouverture, et
    - un mécanisme, par lequel l'électrode (34) de champ peut être entraînée, caractérisée en ce que
    le mécanisme a une pièce (76), qui est reliée électriquement à l'électrode (34) de champ et qui est guidée à coulissement dans la direction de l'axe longitudinal du disjoncteur, en ce que le module a au moins un dispositif (78) à contact glissant, qui relie électriquement la pièce (76) à un composant (38), fixe par rapport au module, du mécanisme, qui est relié fixement à la pièce (14) de contact de courant permanent du module (10), et en ce que le au moins un dispositif (78) à contact glissant a
    - une barrette (80) élastique ayant un élément (82) de contact et/ou
    - au moins un élément (82) de contact et au moins un ressort (84) de compression soumettant l'élément (82) respectif de contact à une force et/ou
    - au moins un ressort (88) à lame.
  2. Module suivant la revendication 1,
    caractérisé en ce que
    l'agencement composé de l'élément (82) de contact et du ressort (84) de compression soumettant l'élément (82) de contact à une force est disposé dans un évidement (86), qui est formé dans la pièce (76) ou dans le composant (38) fixe par rapport au module, et qui, en particulier également, forme un guidage pour l'élément (82) de contact.
  3. Module suivant l'une des revendications 1 ou 2,
    caractérisé en ce que
    le mécanisme a une première barre (20) d'accouplement pouvant être entraînée, accouplée à une buse (16) isolante et s'étendant dans la direction de l'axe longitudinal du disjoncteur.
  4. Module suivant la revendication 3,
    caractérisé en ce que
    la première barre (20) d'accouplement forme la pièce (76) reliée électriquement à l'électrode (34) de champ.
  5. Module suivant la revendication 3,
    caractérisé en ce que
    le mécanisme a en outre
    - un levier (26) fixé à pivotement à la première barre (20) d'accouplement avec une tige (22), qui est fixée à la partie pivotante du levier (26), qui en traverse le plan de pivotement, et à laquelle l'électrode (34) de champ est accouplée, et
    - un guidage (28) à coulisse, dans lequel la tige (22) glisse, lors du mouvement d'ouverture.
  6. Module suivant la revendication 5,
    caractérisé en ce que
    le guidage (28) à coulisse est constitué dans le composant (38), fixe par rapport au module, du mécanisme.
  7. Module suivant la revendication 5 ou 6,
    caractérisé en ce que
    l'électrode (34) de champ est, par au moins une deuxième barre (32) d'accouplement s'étendant parallèlement à la première barre (20) d'accouplement, reliée à une traverse (30), qui forme la pièce (76) reliée électriquement à l'électrode (34) de champ.
  8. Module suivant l'une des revendications 1 à 7,
    caractérisé en ce que
    le au moins un dispositif (78) à contact glissant est monté d'un côté du mécanisme, opposé à la pièce (12) de contact d'arc électrique du module (10).
  9. Disjoncteur en haute tension comprenant
    - deux pièces (14) de contact de courant permanent mobiles l'une par rapport à l'autre le long d'un axe longitudinal du disjoncteur,
    - deux pièces (12) de contact d'arc électrique mobiles l'une par rapport à l'autre le long d'un axe longitudinal du disjoncteur,
    - une électrode (34) de champ, qui, dans l'état ouvert du disjoncteur, est opposée à la première pièce de contact d'arc électrique et entoure au moins par endroits la deuxième pièce (12) de contact d'arc électrique,
    caractérisé par
    un module (10) suivant l'une des revendications 1 à 7.
  10. Disjoncteur en haute tension suivant la revendication 9, caractérisé par
    une buse (16) isolante, qui est reliée fixement aux pièces de contact pouvant être entraînées.
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 EP4018466A1 (fr) 2022-06-29
EP4018466B1 true EP4018466B1 (fr) 2023-11-01
EP4018466C0 EP4018466C0 (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)

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 Hochspannungs-Leistungsschalter mit einer Isolierstoffdüse
DE59802323D1 (de) 1997-01-17 2002-01-17 Siemens Ag Hochspannungs-leistungsschalter mit einer axial verschiebbaren feldelektrode
DE19727850C1 (de) 1997-06-26 1998-09-17 Siemens Ag Hochspannungs-Leistungsschalter mit zwei entgegengesetzt antreibbaren Lichtbogenkontaktstücken
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
DE102019214432B4 (de) 2024-02-08
CN114424313B (zh) 2024-04-05
DE102019214432A1 (de) 2021-03-25
EP4018466A1 (fr) 2022-06-29
CN114424313A (zh) 2022-04-29
WO2021058231A1 (fr) 2021-04-01

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