EP2936527B1 - Mittelspannungsschalteinrichtung mit mindestens einem flexiblen elektrischen verbindungselement - Google Patents

Mittelspannungsschalteinrichtung mit mindestens einem flexiblen elektrischen verbindungselement Download PDF

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Publication number
EP2936527B1
EP2936527B1 EP12812868.3A EP12812868A EP2936527B1 EP 2936527 B1 EP2936527 B1 EP 2936527B1 EP 12812868 A EP12812868 A EP 12812868A EP 2936527 B1 EP2936527 B1 EP 2936527B1
Authority
EP
European Patent Office
Prior art keywords
medium voltage
voltage switchgear
switchgear according
position switch
aforesaid
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.)
Not-in-force
Application number
EP12812868.3A
Other languages
English (en)
French (fr)
Other versions
EP2936527A1 (de
Inventor
Manfred Sauer
Maik Hyrenbach
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.)
ABB Schweiz AG
Original Assignee
ABB Schweiz 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 ABB Schweiz AG filed Critical ABB Schweiz AG
Publication of EP2936527A1 publication Critical patent/EP2936527A1/de
Application granted granted Critical
Publication of EP2936527B1 publication Critical patent/EP2936527B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02Details
    • H01H33/04Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121Load break switches
    • H01H33/125Load break switches comprising a separate circuit breaker
    • H01H33/128Load break switches comprising a separate circuit breaker being operated by a separate mechanism interlocked with the sectionalising mechanism
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/666Operating arrangements
    • H01H33/6661Combination with other type of switch, e.g. for load break switches
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/12Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14Contacts characterised by the manner in which co-operating contacts engage by abutting
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/12Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38Plug-and-socket contacts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/12Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/42Knife-and-clip contacts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/58Electric connections to or between contacts; Terminals
    • H01H1/5822Flexible connections between movable contact and terminal
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/58Electric connections to or between contacts; Terminals
    • H01H1/5822Flexible connections between movable contact and terminal
    • H01H2001/5827Laminated connections, i.e. the flexible conductor is composed of a plurality of thin flexible conducting layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26Air-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
    • H01H31/28Air-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 angularly-movable contact
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26Air-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
    • H01H31/32Air-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

Definitions

  • the invention concerns to a medium voltage switchgear with an assembled pole part with integrated three-position switch according to the preamble of claim 1.
  • the first fixed or movable part is a fixed or movable contact stem of a vacuum interrupter.
  • the best mode version of that is, that the movable contact stem of the vacuuminterrupter is directly connected with the movable part of the two- or three- position switch via the flexible or bendable conductor.
  • a further advantageous embodiment is, that the flexible and/or bendable conductor is a single conductor. That means that it is a single, at least partly bendable conductor band.
  • a further advantageous embodiment is, that the flexible and/or bendable conductor is a double conductor, which means, that the conductor consist of two flat and flexible conductor bands.
  • the flexible and/or bendable conductor is a ring conductor.
  • An advantageous embodiment is, that such conductor is used for each of three phases, in order to realized it for a three phases switchgear.
  • the two- or three-position switch is applied as sliding contact system.
  • the invention can applied also in two- or three-position switch with pivotable contact system.
  • conductors with high bendability or flexibility are applied, in order to allow a shifting movement along a defined axis additionally to a movement in third dimension.
  • An advantageous embodiment is, that the two- or three-position switch is applied with finger contacts at the fixed contact side or sides.
  • the invention is also advantageous if the two- or three- position switch is applied with flat contacts at the fixed contact side or sides.
  • a further advantageous embodiment is, that guiding means as well are additionally assembled between the insulating housing half shells, as an integral arrangement. This results in a very compact construction.
  • linear drive is arranged separately for each phase as a linear threaded bolt drive, which is integrated into the arrangement between the insulting half shells.
  • a gear drive for the two- or three position switch is arranged between the insulting half shells.
  • the invention can be used with high advantages in Gas insulated medium voltage switchgears.
  • Figure 1 shows from the upper part of figure 1 to the lower part of figure 1 the several positions of the sliding contact of the disconnector/grounder switch.
  • the upper part of figure 1 shows a vacuum interrupter 10.
  • the movable contact stem 2 of the vacuum interrupter 10 is fixed with the bendable conductor element 1.
  • the other end of the conductor element 1 fixed to the shiftable connector 3, which is shifted into the connecting position with the finger contact 4 of the two- or three-position switch. So, by that the flexible conductor element 1 has two implemented funtions.
  • the first function is, that it is a flexible conductor between the vacuum interrupter terminal and the two or three position switch
  • the second is, that the flexible conductor is integrally also the switching element of the two or three position switch.
  • the bendable conductor element 1 is at its upper end simultaneously an integrated contact element
  • the middle part of figure 1 shows the open middle position of the sliding contact arrangement, and the lower part of figure 1 shows the contacting at the other contact adjacent to the contact 4 of the two- or three-position switch.
  • an interconnection like that by the use of a bendable conductor element has a lower transmission resistance than interconnections by sliding elements in combinations with spiral spring contact. This reduces the occurring heat.
  • What is displayed in figure 1 at the right side is a single phase arrangement. At the left side of figure 1 is shown a concerning three phase arrangement.
  • One of the further advantages of the invention is, that the arrangement is as compact, that a parallel arrangement for three-phase application is easy to realize in order to be compact.
  • Figure 2 shows an embodiment by the use of a bendable double conductor band. It gives the same flexability as well as furthermore enhanced current capacity. In this embodiment is also used a two- or three-position switch with round contact arrangement.
  • the flexible double conductor band is made of two separate conductor bands, but connected in such a way, that is describes partly a ring, made of two flexible conductor bands with two open ends each.
  • Annother alternative to that is a flexible conductor also arranged as a ring, like shown in figure 3 , bended by a single flexible conductor band with two open ends.
  • Figure 4 shows an embodiment with a pivotable contact system with knife contacts. Also in this case, the use of a bendable conductor band between in this case two movable contacts are implemented with all the above mentioned advantages.
  • Figure 5 shows the position of the integral guide means for the drive.
  • These guiding means 30 are mounted directly on top of the two/three-position switch.
  • this pole part is an assembled pole part and the two- or three-position switch is mounted above the vavuum interrupter in a very compact way. So the guiding means are localized between the halfshells 31, between which the switch arrangement is mounted, and within the resulting profile of the halfshells 31 or a the front plate 32.
  • the guiding means can mechanically be coupled with a motor drive or an hand drive.
  • the flexible conductor element between movable part of the three position switch and the movable contact of the vacuum interrupter is one single piece.

Landscapes

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

Claims (16)

  1. Mittelspannungsschalteinrichtung mit montiertem Polteil mit Zwei- oder Dreistellungsschalter, dessen Polteilrahmen aus Isoliermaterial bestehen, zwischen denen ein Vakuumunterbrecher angebracht ist, wobei der Vakuumunterbrecher mit einem festen Kontakt und einem beweglichen Kontakt bereitgestellt ist, sodass ein Ende des Rahmens mit einem ersten Träger versehen ist, um den Vakuumunterbrecher an der beweglichen Kontaktseite zu fixieren, sowie Befestigungsmittel für die feste Kontaktseite am anderen Ende des Rahmens, wobei die elektrische Verbindung zwischen dem beweglichen Teil des Vakuumunterbrechers und dem beweglichen Teil des Zwei- oder Dreistellungsschalters ein mechanisch flexibles Leiterelement ist, und sodass die isolierenden Polteilrahmen mit Führungsmitteln für den linearen beweglichen Kontaktteil des Zwei- oder Dreistellungsschalters bereitgestellt werden, welche in die Polteilrahmen oder die Polteilrahmenanordnung integriert sind,
    dadurch gekennzeichnet, dass das offene Ende des biegbaren Leiters (1) als Kontaktelement selbst entwickelt oder ausgebildet ist, das an oder von einem Fingerkontaktelement (4) des Zwei- oder Dreistellungsschalters geschlossen oder geöffnet werden kann.
  2. Mittelspannungsschalteinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das erste feste oder bewegliche Teil (2) ein fester oder beweglicher Kontaktstängel eines Vakuumunterbrechers (10) ist.
  3. Mittelspannungsschalteinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das flexible und/oder biegbare Leiterelement (1) ein einzelner Leiter ist.
  4. Mittelspannungsschalteinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das flexible und/oder biegbare Leiterelement (1) ein Doppelleiter ist.
  5. Mittelspannungsschalteinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das flexible und/oder biegbare Leiterelement (1) ein Ringleiter ist.
  6. Mittelspannungsschalteinrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass ein solcher Leiter für jede von drei Phasen verwendet wird.
  7. Mittelspannungsschalteinrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass der Zwei- oder Dreistellungsschalter als gleitendes Kontaktsystem angewendet wird.
  8. Mittelspannungsschalteinrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass der Zwei- oder Dreistellungsschalter als schwenkbares Kontaktsystem angewendet wird.
  9. Mittelspannungsschalteinrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass der Zwei- oder Dreistellungsschalter mit Fingerkontakten (4) an der festen Kontaktseite oder den festen Kontaktseiten angewendet wird.
  10. Mittelspannungsschalteinrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass der Zwei- oder Dreistellungsschalter mit Rundkontakten (5) an der festen Kontaktseite oder den festen Kontaktseiten angewendet wird.
  11. Mittelspannungsschalteinrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass der vollständige Zwei- oder Dreistellungsschalter vollständig zwischen isolierenden Gehäusehalbschalen montiert ist.
  12. Mittelspannungsschalteinrichtung nach Anspruch 11, dadurch gekennzeichnet, dass zwischen den isolierenden Gehäusehalbschalen zusätzlich auch Führungsmittel als integrale Anordnung montiert sind.
  13. Mittelspannungsschalteinrichtung nach einem der vorgenannten Ansprüche 1 bis 12, dadurch gekennzeichnet, dass für jede Phase ein Linearantrieb als Gewindebolzen-Linearantrieb getrennt angeordnet ist, der in die Anordnung zwischen den isolierenden Halbschalen integriert ist.
  14. Mittelspannungsschalteinrichtung nach einem der vorgenannten Ansprüche 1 bis 12, dadurch gekennzeichnet, dass zwischen den isolierenden Halbschalen ein Zahnradantrieb für den Zwei- oder Dreistellungsschalter angeordnet ist.
  15. Mittelspannungsschalteinrichtung nach einem der vorgenannten Ansprüche 1 bis 14, dadurch gekennzeichnet, dass für eine Dreiphasenanordnung nur ein gemeinsamer Antrieb implementiert ist.
  16. Mittelspannungsschalteinrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass die Mittelspannungsschalteinrichtung als gasisolierte Schalteinrichtung angewendet wird.
EP12812868.3A 2012-12-21 2012-12-21 Mittelspannungsschalteinrichtung mit mindestens einem flexiblen elektrischen verbindungselement Not-in-force EP2936527B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/005345 WO2014094806A1 (en) 2012-12-21 2012-12-21 Medium voltage switchgear with an assembled pole part with integrated three-position switch

Publications (2)

Publication Number Publication Date
EP2936527A1 EP2936527A1 (de) 2015-10-28
EP2936527B1 true EP2936527B1 (de) 2017-04-26

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Application Number Title Priority Date Filing Date
EP12812868.3A Not-in-force EP2936527B1 (de) 2012-12-21 2012-12-21 Mittelspannungsschalteinrichtung mit mindestens einem flexiblen elektrischen verbindungselement

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EP (1) EP2936527B1 (de)
CN (1) CN104871275B (de)
WO (1) WO2014094806A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104201041B (zh) * 2014-08-15 2015-10-21 浙江道笃智能开关有限公司 组合固封极柱及其工作原理
CN107154643B (zh) * 2017-05-18 2023-06-23 平顶山市津电智能科技有限公司 一种变压器组自调控系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376235A (en) * 1981-02-12 1983-03-08 Westinghouse Electric Corp. Electrical junction of high conductivity for a circuit breaker or other electrical apparatus
FR2719154B1 (fr) * 1994-04-25 1996-06-07 Merlin Gerin Interrupteur électrique moyenne tension.
CN102484013B (zh) * 2009-08-20 2015-11-25 西门子公司 开关设备支架
WO2011147717A1 (de) * 2010-05-25 2011-12-01 Siemens Aktiengesellschaft Lasttrennschalter

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* Cited by examiner, † Cited by third party
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CN104871275A (zh) 2015-08-26
CN104871275B (zh) 2017-10-24
EP2936527A1 (de) 2015-10-28
WO2014094806A1 (en) 2014-06-26

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