EP1875482B1 - Load-break switch - Google Patents

Load-break switch Download PDF

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Publication number
EP1875482B1
EP1875482B1 EP06724371.7A EP06724371A EP1875482B1 EP 1875482 B1 EP1875482 B1 EP 1875482B1 EP 06724371 A EP06724371 A EP 06724371A EP 1875482 B1 EP1875482 B1 EP 1875482B1
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EP
European Patent Office
Prior art keywords
contact
pin
piece
moving
section
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
EP06724371.7A
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German (de)
French (fr)
Other versions
EP1875482A1 (en
Inventor
Ole Granhaug
Jan-Henrik Kuhlefelt
Pal Skryten
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
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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 EP1875482A1 publication Critical patent/EP1875482A1/en
Application granted granted Critical
Publication of EP1875482B1 publication Critical patent/EP1875482B1/en
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Classifications

    • 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
    • H01H1/385Contact arrangements for high voltage gas blast circuit breakers
    • 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7023Switches 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

Definitions

  • the invention relates to a switch-disconnector according to the preamble of claim 1.
  • the switch-disconnector has a fixed contact piece assembly which is fixed to a contact spindle or contact rod as a contact carrier, which is coupled to a pivot lever drive, which is actuated by a drive shaft.
  • the contact point comprises a main contact point and an arc tear-off point, wherein the main contact point has a pot contact piece with contact fingers.
  • the contact rod has a longitudinal slot, the slot height, that is, the distance between the slot surfaces, can be changed by means of a screw.
  • the contact rod has a substantially continuous without a step outer surface.
  • a certain length of the contact rod is necessary at least in the region of the slot in order to obtain sufficient elasticity.
  • the object of the invention is to optimize a load-break switch of the type mentioned.
  • the there drawn contact point of a circuit breaker is located in a cup-shaped housing 10 made of insulating plastic, as it is known from DE 10 2005 009 207.1 has become known.
  • the container 10 is closed at its free end with a bottom portion 11 in which a cylindrical contact portion or sleeve 12 is fixed, the or has a bore 13 through which a connecting line according to arrow P can be connected.
  • a fixed main contact piece 14 connects, which is tulip-shaped with a bottom plate 15 and adjoining contact fingers 16, which have a confinement 17 inwardly at their free ends.
  • a contact pin 18 is fixed, in the Fig. 4 is shown in more detail.
  • a contact carrier 19 in the form of a contact rod, at the inner end of a sealing plate is fixed, which carries on its outer periphery a seal 21 which bears against the inner surface of the container 10 and serves for sealing there.
  • a cylinder 22 On the plate 20, a cylinder 22 is fixed, which carries on its inner surface a nozzle-shaped contact piece 23, wherein the nozzle shape forms the inner contour 24.
  • the cylinder 22 has at its end opposite the contact piece 23 a radially inwardly projecting bar 25, which comprises the contact rod 19 and is firmly connected therewith.
  • the interior 26 of the cylinder 22 is provided in the region of the strip 25 with passage openings 27 which connect the interior space 26 with the space 28 below the plate 20 in the axial direction.
  • a blowing cylinder 29 is attached from insulating plastic.
  • the Fig. 4 shows the contact pin 18.
  • This contact pin 18 is approximately cylindrically shaped and has a pin portion 30 which is non-positively inserted into the bore 13.
  • the section 30 is followed by a hexagonal plate portion 31, which abuts against the inner surface 32 of the bottom 15 of the main contact piece 14 and the main contact piece 14 with the contact cylinder 12 firmly connects.
  • the contact pin 18 has a contact finger portion 32 which has at its free end radially an enlarged portion 34 which gives the contact pin 18 a microphone-like structure.
  • the contact pin 32 has an axially extending longitudinal slot 33, whereby two contact pin fingers 35 and 36 are formed.
  • the outer diameter of the portion 34 is greater than the inner diameter of the contact piece 23, so that when an elimination takes place, so if the contact piece carrier is pulled in the direction of arrow P 1 , the inner surface of the contact piece 23 slides on the outer surface of the portion 34 and thus the two Contact pin fingers 35 and 36 press each other.
  • the contact piece 23 is made of arc-resistant material, as well as the section 34th
  • the blowing cylinder 29 has an opening 40 whose inner diameter corresponds approximately to the outer diameter of the section 34. In the position according to Fig. 2 the blowing cylinder 29 slides with its opening on the section 34. As soon as the contact piece 23 separates from the portion 34 of the contact pin 32, there forms an arc 43 (see Fig. 3 ), which is blown by the blowing cylinder 29 made of insulating material with the gas in space 41 of this.
  • the insulating plastic of the blowing cylinder 29 is made of gas-releasing material, whereby the arc between the portion 34 and the contact piece 23 is optimally blown.
  • the Fig. 3 shows the contact arrangement shortly after the separation of the contact piece 23 from the section 34, in which case the arc 43 is pulled, which is extinguished by extinguishing gas flowing out of the space 41 in the direction of arrow P 2 .
  • a cup 50 is electrically connected fixedly surrounding the container 10 and carries in the region of the contact point located between the contact piece and the contact cylinder 22 field control ring 51, as in the patent application DE 10 2005 009 207.1 described in more detail.

Landscapes

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

Description

Die Erfindung betrifft einen Lasttrennschalter nach dem Oberbegriff des Anspruches 1.The invention relates to a switch-disconnector according to the preamble of claim 1.

In der deutschen Patentanmeldung DE 10 2005 009 207.1 ist ein Lasttrennschalter der eingangs genannten Art beschrieben worden, der in einer Mittelspannungsanlage eingebaut ist und dort die Aufgabe hat, Strom bei Nennlast abzuschaltern bzw. einzuschalten. Zu diesem Zweck besitzt der Lasttrennschalter eine feststehende Kontaktstückanordnung, die an einer Kontaktspindel oder Kontaktstange als Kontaktträger befestigt ist, die bzw. der mit einem Schwenkhebelantrieb gekoppelt ist, der von einer Antriebswelle betätigt wird.In the German patent application DE 10 2005 009 207.1 a switch-disconnector of the type mentioned has been described, which is installed in a medium-voltage system and there has the task to shut down or turn on electricity at rated load. For this purpose, the switch-disconnector has a fixed contact piece assembly which is fixed to a contact spindle or contact rod as a contact carrier, which is coupled to a pivot lever drive, which is actuated by a drive shaft.

Die Kontaktstelle umfaßt eine Hauptkontaktstelle und eine Lichtbogenabreißstelle, wobei die Hauptkontaktstelle ein Topfkontaktstück mit Kontaktfingern aufweist.The contact point comprises a main contact point and an arc tear-off point, wherein the main contact point has a pot contact piece with contact fingers.

Aus der US-A-4 268 164 ist ein derartiger Schalter bekannt geworden, dessen Kontaktstange einen Längsschlitz aufweist, den Schlitzhöhe, das heißt der Abstand zwischen den Schlitzflächen, mittels einer Schraube verändert werden kann. Dabei besitzt die Kontaktstange im wesentlichen eine stetig ohne eine Stufe verlaufende Außenfläche. Dabei ist eine bestimmte Länge der Kontaktstange zumindest im Bereich des Schlitzes notwendig, um eine ausreichende Elastizität zu erhalten.From the US-A-4,268,164 is such a switch has become known, the contact rod has a longitudinal slot, the slot height, that is, the distance between the slot surfaces, can be changed by means of a screw. In this case, the contact rod has a substantially continuous without a step outer surface. In this case, a certain length of the contact rod is necessary at least in the region of the slot in order to obtain sufficient elasticity.

Aus der EP 0 700 062 A1 ist ein Schalter bekannt geworden, dessen feststehendes Kontaktstück ein Rohr mit Kontaktfingern aufweist, die von einer am Rohr befestigten Hülse umgeben ist und die verhindern soll, daß die mittels Federn nach innen beaufschlagten Kontaktfinger zu weit nach innen federn.From the EP 0 700 062 A1 a switch has become known whose fixed contact piece has a tube with contact fingers, which is surrounded by a sleeve attached to the tube and which is intended to prevent the springs acted upon by springs inwardly spring fingers too far inward.

Aufgabe der Erfindung ist es einen Lasttrennschalter der eingangs genannten Art zu optimieren.The object of the invention is to optimize a load-break switch of the type mentioned.

Diese Aufgabe wird erfindungsgemäß durch die Merkmals des Anspruches 1 gelöst.This object is achieved by the feature of claim 1.

Weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung sind den weiteren Unteransprüchen zu entnehmen.Further advantageous embodiments and improvements of the invention can be found in the further subclaims.

Anhand der Zeichnung, in der ein Ausführungsbeispiel der Erfindung dargestellt ist, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben werden.Reference to the drawing, in which an embodiment of the invention is shown, the invention and further advantageous embodiments and improvements of the invention will be explained and described in detail.

Es zeigen

Fig. 1
eine Kontaktstelle eines Lasttrennschalters in Einschaltstellung,
Fig. 2
die Kontaktstelle gemäß Fig. 1 kurz vor Ausschaltstellung,
Fig. 3
eine perspektivische Ansicht der Hauptkontaktstelle bei weiterer Ausschaltung und
Fig. 4
eine perspektivische Ansicht eines Kontaktzapfens.
Show it
Fig. 1
a contact point of a circuit breaker in closed position,
Fig. 2
the contact point according to Fig. 1 shortly before switch-off position,
Fig. 3
a perspective view of the main contact point with further switching off and
Fig. 4
a perspective view of a contact pin.

Es sei Bezug genommen auf die Fig. 1.It is referred to the Fig. 1 ,

Die dort gezeichnete Kontaktstelle eines Lasttrennschalters befindet sich in einem topfförmigen Gehäuse 10 aus isolierendem Kunststoff, wie er aus der DE 10 2005 009 207.1 bekannt geworden ist. Der Behälter 10 ist an seinem freien Ende mit einem Bodenabschnitt 11 verschlossen, in dem ein zylinderförmiger Kontaktabschnitt oder -hülse 12 festgelegt ist, der bzw. die eine Bohrung 13 aufweist, über die eine Anschlussleitung gemäß Pfeilrichtung P angeschlossen werden kann. Am inneren Ende der Kontakthülse 12 schließt sich ein feststehendes Hauptkontaktstück 14 an, welches tulpenförmig ausgebildet ist mit einer Bodenplatte 15 und daran anschließenden Kontaktfingern 16, die an ihren freien Enden eine Einziehung 17 nach innen aufweisen. In der Bohrung 13 ist ein Kontaktzapfen 18 fixiert, der in der Fig. 4 näher dargestellt ist.The there drawn contact point of a circuit breaker is located in a cup-shaped housing 10 made of insulating plastic, as it is known from DE 10 2005 009 207.1 has become known. The container 10 is closed at its free end with a bottom portion 11 in which a cylindrical contact portion or sleeve 12 is fixed, the or has a bore 13 through which a connecting line according to arrow P can be connected. At the inner end of the contact sleeve 12, a fixed main contact piece 14 connects, which is tulip-shaped with a bottom plate 15 and adjoining contact fingers 16, which have a confinement 17 inwardly at their free ends. In the bore 13, a contact pin 18 is fixed, in the Fig. 4 is shown in more detail.

Innerhalb des Behälters 10 geführt (in nicht näher dargestellter Weise) ist ein Kontaktträger 19 in Form einer Kontaktstange, an deren innerem Ende eine Dichtungsplatte befestigt ist, die an ihrem Außenumfang eine Dichtung 21 trägt, die gegen die Innenfläche des Behälters 10 anliegt und dort zur Abdichtung dient. An der Platte 20 ist ein Zylinder 22 befestigt, der an seiner Innenfläche ein düsenförmiges Kontaktstück 23 trägt, wobei die Düsenform die Innenkontur 24 bildet. Der Zylinder 22 besitzt an seinem dem Kontaktstück 23 entgegengesetzt liegenden Ende eine radial nach innen vorspringende Leiste 25, die die Kontaktstange 19 umfasst und dort damit fest verbunden ist. Der Innenraum 26 des Zylinders 22 ist im Bereich der Leiste 25 mit Durchgangsöffnungen 27 versehen, die in axialer Richtung den Innenraum 26 mit dem Raum 28 unterhalb der Platte 20 verbinden. Am Stirnende des Zylinders 22, auf der der Platte 20 entgegengesetzten Seite, ist ein Blaszylinder 29 aus isolierendem Kunststoff befestigt.Within the container 10 out (in a manner not shown) is a contact carrier 19 in the form of a contact rod, at the inner end of a sealing plate is fixed, which carries on its outer periphery a seal 21 which bears against the inner surface of the container 10 and serves for sealing there. On the plate 20, a cylinder 22 is fixed, which carries on its inner surface a nozzle-shaped contact piece 23, wherein the nozzle shape forms the inner contour 24. The cylinder 22 has at its end opposite the contact piece 23 a radially inwardly projecting bar 25, which comprises the contact rod 19 and is firmly connected therewith. The interior 26 of the cylinder 22 is provided in the region of the strip 25 with passage openings 27 which connect the interior space 26 with the space 28 below the plate 20 in the axial direction. At the front end of the cylinder 22, on the opposite side of the plate 20, a blowing cylinder 29 is attached from insulating plastic.

Es sei nun Bezug genommen auf die Fig. 4.It is now referred to the Fig. 4 ,

Die Fig. 4 zeigt den Kontaktzapfen 18. Dieser Kontaktzapfen 18 ist etwa zylindrisch geformt und besitzt einen Zapfenabschnitt 30, der in die Bohrung 13 kraftschlüssig eingesetzt ist. An den Abschnitt 30 schließt sich ein sechseckförmiger Plattenabschnitt 31 an, der sich gegen die Innenfläche 32 des Bodens 15 des Hauptkontaktstückes 14 anlegt und das Hauptkontaktstück 14 mit dem Kontaktzylinder 12 fest verbindet. Der Kontaktzapfen 18 besitzt einen Kontaktfingerabschnitt 32, der an seinem freien Ende radial einen erweiterten Abschnitt 34 aufweist, die dem Kontaktzapfen 18 eine mikrofonartige Struktur verleiht. Der Kontaktzapfen 32 besitzt einen axial verlaufenden Längsschlitz 33, wodurch zwei Kontaktzapfenfinger 35 und 36 gebildet sind. Der Außendurchmesser des Abschnittes 34 ist größer als der Innendurchmesser des Kontaktstückes 23, so dass dann, wenn eine Ausschaltung stattfindet, wenn also der Kontaktstückträger in Pfeilrichtung P1 gezogen wird, die Innenfläche des Kontaktstückes 23 auf die Außenfläche des Abschnittes 34 aufgleitet und damit die beiden Kontaktzapfenfinger 35 und 36 aufeinander zu drückt.The Fig. 4 shows the contact pin 18. This contact pin 18 is approximately cylindrically shaped and has a pin portion 30 which is non-positively inserted into the bore 13. The section 30 is followed by a hexagonal plate portion 31, which abuts against the inner surface 32 of the bottom 15 of the main contact piece 14 and the main contact piece 14 with the contact cylinder 12 firmly connects. The contact pin 18 has a contact finger portion 32 which has at its free end radially an enlarged portion 34 which gives the contact pin 18 a microphone-like structure. The contact pin 32 has an axially extending longitudinal slot 33, whereby two contact pin fingers 35 and 36 are formed. The outer diameter of the portion 34 is greater than the inner diameter of the contact piece 23, so that when an elimination takes place, so if the contact piece carrier is pulled in the direction of arrow P 1 , the inner surface of the contact piece 23 slides on the outer surface of the portion 34 and thus the two Contact pin fingers 35 and 36 press each other.

Das Kontaktstück 23 ist aus lichtbogenabrissfestem Material, ebenso wie der Abschnitt 34.The contact piece 23 is made of arc-resistant material, as well as the section 34th

Wenn nun eine Schalthandlung stattfindet und der Kontaktträger 19 mit dem beweglichen Kontaktstück 23 nach unten (siehe Fig. 1) in Pfeilrichtung P1 gezogen wird, dann gleitet der Kontaktzylinder 22 aus den Kontaktfingern 16 heraus, wie in Fig. 2 ersichtlich ist; in diesem Falle bleibt aber der Kontaktzapfen 18 noch in elektrisch leitender Verbindung mit dem Kontaktstück 23, so dass nach Trennung der Kontaktfinger 16 vom Kontaktzylinder 22 der Strom vom Kontaktzylinder 22 über das Kontaktstück 23 zu dem Kontaktzapfen 18 hin fließt.If now a switching operation takes place and the contact carrier 19 with the movable contact piece 23 down (see Fig. 1 ) is pulled in the direction of arrow P 1 , then slides the contact cylinder 22 out of the contact fingers 16, as in Fig. 2 is apparent; in this case, however, the contact pin 18 still remains in electrically conductive connection with the contact piece 23, so that after separation of the contact fingers 16 from the contact cylinder 22, the current flows from the contact cylinder 22 via the contact piece 23 to the contact pin 18.

Der Blaszylinder 29 besitzt eine Öffnung 40, deren Innendurchmesser etwa dem Außendurchmesser des Abschnittes 34 entspricht. In der Stellung gemäß Fig. 2 gleitet der Blaszylinder 29 mit seiner Öffnung auf den Abschnitt 34 auf. Sobald sich das Kontaktstück 23 von dem Abschnitt 34 des Kontaktzapfens 32 trennt, bildet sich dort ein Lichtbogen 43 (siehe Fig. 3), der von dem Blaszylinder 29 aus isolierendem Material mit der von diesem im Raum 41 befindlichen Gas beblasen wird. Der isolierende Kunststoff des Blaszylinders 29 ist aus Gas abgebendem Material, wodurch der Lichtbogen zwischen dem Abschnitt 34 und dem Kontaktstück 23 optimal beblasen wird.The blowing cylinder 29 has an opening 40 whose inner diameter corresponds approximately to the outer diameter of the section 34. In the position according to Fig. 2 the blowing cylinder 29 slides with its opening on the section 34. As soon as the contact piece 23 separates from the portion 34 of the contact pin 32, there forms an arc 43 (see Fig. 3 ), which is blown by the blowing cylinder 29 made of insulating material with the gas in space 41 of this. The insulating plastic of the blowing cylinder 29 is made of gas-releasing material, whereby the arc between the portion 34 and the contact piece 23 is optimally blown.

Die Fig. 3 zeigt die Kontaktanordnung kurz nach der Trennung des Kontaktstückes 23 vom Abschnitt 34, wobei hier der Lichtbogen 43 gezogen wird, der durch aus dem Raum 41 in Pfeilrichtung P2 ausströmendes Löschgas gelöscht wird.The Fig. 3 shows the contact arrangement shortly after the separation of the contact piece 23 from the section 34, in which case the arc 43 is pulled, which is extinguished by extinguishing gas flowing out of the space 41 in the direction of arrow P 2 .

Mit dem Kontaktzylinder 12 ist ein Becher 50 elektrisch leitend fest verbunden, der den Behälter 10 umgibt und im Bereich der Kontaktstelle einen zwischen dem Kontaktstück und dem Kontaktzylinder 22 befindlichen Feldsteuerring 51 trägt, wie in der Patentanmeldung DE 10 2005 009 207.1 näher beschrieben.With the contact cylinder 12, a cup 50 is electrically connected fixedly surrounding the container 10 and carries in the region of the contact point located between the contact piece and the contact cylinder 22 field control ring 51, as in the patent application DE 10 2005 009 207.1 described in more detail.

Claims (4)

  1. Switch disconnector with a main contact point and an arc interruption point, of which the main contact point opens before the arc interruption point during disconnection and is closed after the arc interruption point during connection, with a stationary (16, 18) and a moving (26, 23) contact-piece arrangement, with the moving main contact point having a contact cylinder (22) which is connected to a contact mount (19), and with the arc interruption point having a contact pin (18) as the stationary contact piece and an annular contact piece (23) as the moving contact piece, with the contact pin (18) having a section (34) composed of interruption-resistant material, whose external diameter is greater than the external diameter of the rest of the pin area and which gives the contact pin (18) a microphone-like structure, and with the contact pin (18) having at least one slot (33) which runs in the longitudinal direction and splits the pin (18) into at least two contact fingers (35, 36), characterized in that the stationary contact-piece arrangement (16, 18) has a pot contact piece with contact fingers (16), in that the external diameter of the section composed of interruption-resistant material (34) is greater than the internal diameter of the moving contact piece (23), and in that the moving contact piece (23) has a nozzle shape on its inner contour, whose narrowest internal diameter is less than the external diameter of the section (34) on the contact pin (18), so that, when disconnection occurs, the inner surface of the moving contact piece (23) slides onto the outer surface of the section (34), thus forcing the two contact pin fingers (35, 36) towards one another.
  2. Switch disconnector according to Claim 1, characterized in that the moving contact piece (23), which is associated with the arc interruption point, is at least partially composed of a material which is resistant to arc interruption.
  3. Switch disconnector according to Claim 1 or 2, characterized in that a blowing cylinder (29) composed of electrically insulating material is formed on the contact cylinder (22) and surrounds an inner opening (40) whose internal diameter corresponds to the external diameter of the section (34) of the contact pin, such that, once the inner opening (40) has run onto the section (34), the gas which is located within the blowing cylinder blows the arc which has been struck between the moving contact piece (23) and the contact pin (18).
  4. Switch disconnector according to one of the preceding claims, characterized in that the blowing cylinder (29) is composed of a material which emits gas when an arc occurs.
EP06724371.7A 2005-04-25 2006-04-18 Load-break switch Active EP1875482B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005019424A DE102005019424A1 (en) 2005-04-25 2005-04-25 Circuit breaker for use in mean-voltage switchgear, has blowing cylinder with opening, whose inner diameter is equal to outer diameter of contact pin section, where insulating plastic material of cylinder is made of gas delivering material
PCT/EP2006/003500 WO2006114214A1 (en) 2005-04-25 2006-04-18 Load-break switch

Publications (2)

Publication Number Publication Date
EP1875482A1 EP1875482A1 (en) 2008-01-09
EP1875482B1 true EP1875482B1 (en) 2018-09-05

Family

ID=36685977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06724371.7A Active EP1875482B1 (en) 2005-04-25 2006-04-18 Load-break switch

Country Status (7)

Country Link
US (1) US8232496B2 (en)
EP (1) EP1875482B1 (en)
CN (1) CN101167149B (en)
DE (1) DE102005019424A1 (en)
ES (1) ES2701015T3 (en)
NO (1) NO339874B1 (en)
WO (1) WO2006114214A1 (en)

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DE102005009207A1 (en) 2005-02-25 2006-08-31 Abb Technology Ag Switchgear for use in medium voltage sector, has two cable panels designed to form module, fuse panel designed to form another module, and support unit is attached between front and rear walls of each module

Also Published As

Publication number Publication date
EP1875482A1 (en) 2008-01-09
ES2701015T3 (en) 2019-02-20
US8232496B2 (en) 2012-07-31
CN101167149B (en) 2013-08-21
CN101167149A (en) 2008-04-23
US20090314745A1 (en) 2009-12-24
DE102005019424A1 (en) 2006-11-02
NO339874B1 (en) 2017-02-13
WO2006114214A1 (en) 2006-11-02
NO20076049L (en) 2007-11-26

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