WO2006084401A1 - Pole d'interrupteur - Google Patents

Pole d'interrupteur Download PDF

Info

Publication number
WO2006084401A1
WO2006084401A1 PCT/CH2006/000055 CH2006000055W WO2006084401A1 WO 2006084401 A1 WO2006084401 A1 WO 2006084401A1 CH 2006000055 W CH2006000055 W CH 2006000055W WO 2006084401 A1 WO2006084401 A1 WO 2006084401A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
switch
contact piece
active part
piece
Prior art date
Application number
PCT/CH2006/000055
Other languages
German (de)
English (en)
Inventor
Olaf Hunger
Markus Vestner
Original Assignee
Abb Technology 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 Technology Ag filed Critical Abb Technology Ag
Publication of WO2006084401A1 publication Critical patent/WO2006084401A1/fr

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
    • H01H33/02—Details
    • H01H33/025—Terminal arrangements
    • 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
    • H01H33/022—Details particular to three-phase circuit breakers

Definitions

  • the present invention relates to a pole for a single-phase encapsulated multiphase high voltage switch according to the preamble of claim 1.
  • the invention also relates to a high voltage switch having a plurality of such poles.
  • Single-phase encapsulated multiphase high voltage switches are mainly circuit breakers, isolators or earth electrodes and each comprise a plurality of poles, which are each assigned to one of the phases.
  • Each pole contains an insulating gas-filled metal encapsulation with an active part.
  • Such an active part is connected via two connectors and two Kapselungs jacketed with high voltage and comprises at least one switching point with a contact arrangement, which is arranged in the formation of the high-voltage switch as a circuit breaker in general in a switching chamber.
  • Each of the aforementioned connectors contains two contact pieces.
  • the first of these two contact pieces is assigned to a feedthrough conductor guided through the encapsulation, a second to the active part of the pole.
  • Feedthrough conductor is part of a drain and may be associated with an outdoor bushing, a cable termination or an encapsulated device such as a busbar. Therefore, the feedthrough conductors of the individual poles are generally angled to each other. For outdoor bushings, this is especially necessary because of the
  • a switch pole of the aforementioned type is described in DE 39 04439 A1.
  • a switch pole illustrated in FIG. 1 of this patent document has a metal housing 2 in which an interrupter unit 5 is arranged.
  • the interrupter unit is connected via two connectors 17, 18 with feedthrough conductors 19, 20.
  • Contacts 27, 31 of the connectors are held stationary on the feedthrough conductors which can be acted upon by high voltage, whereas an associated mating contact 28 or 32 is fastened to a connection fitting 6 or to a projection of a directing element 30 which extends transversely to a longitudinal axis L of the interrupter unit 5.
  • High voltage switch is also known from DE 33 18 344 A1.
  • This switch pole has a switching point arranged in a stretched metal housing 20, which is connected via two isolating contact arrangements with hollow current connections 22 guided in a fixed manner through the housing 20.
  • Contacts 51 and 53 of the isolating contact arrangements are slidably mounted transversely to a longitudinal axis of the metal housing in the interior of the power connections.
  • the associated two mating contacts 50 and 52 are each electrically conductively attached to a plate-shaped executed stop of a part 43 and 44 of the switching point. To remove the switching point, the two movable contacts 51 and 53 are moved until they disengage from the two Mating contacts 50 and 52 are. The switching point can then be removed from the housing 20 through a closable opening.
  • FIG. 6 Another switch pole is described in US 6,495,785 B1.
  • This switch pole is designed to be single-phase encapsulated and contains a switching chamber, which is connected via two connectors with current conductors 45, 47 of outdoor bushings 41, 42.
  • the connectors are arranged in the enclosure 40 and each have a connector designed as a contact piece, which is formed in a free end of the centrally guided conductor 45 and 47 of the outdoor bushing, and designed as a socket contact piece, which in a hollow metal armature 43 and 44 of the held in Kapselungsinneren switching chamber is formed.
  • the outdoor bushings of the individual phases are mutually angled. The insulation distances of the air-guided ends of the individual feedthrough conductors are thus maintained.
  • switching points are each acted upon by a transmission with force.
  • the force is generated in a single drive acting on all gears.
  • the gears must be aligned the same. Therefore, the switching chambers in the region of the connectors must be adapted to the angular position of the feedthrough conductors.
  • the object is to provide a switch pole of the type mentioned, in which the switching chamber containing active part can be easily adapted to the angular position of the feedthrough conductor, and to provide a multi-phase high voltage switch, the more contains these switch poles.
  • one of the contact pieces of the connector in a number of phases corresponding number of positions with a contact surface on a mating contact surface of the active part is fixable.
  • the positions are in one determined by an axis of encapsulation Circumferential direction offset by a predetermined angle.
  • the contact piece can therefore be fixed practically in any angular position on the active part.
  • the same enclosures, plug-in connections and active parts can be used for the switch poles of all phases.
  • the different angular positions of the active parts relative to the encapsulation are achieved by suitably positioning and fixing the contact piece on the active part. This results in a simple production of the switch pole.
  • the assembly of the connector is facilitated by the fact that the contact piece has at least one opening into the contact support surface cavity for receiving an attachable to the active part connecting element.
  • a simple setting of the contact piece on the active part is made possible in that the connecting element is a screwable into an internal thread of the active part retaining bolts.
  • the contact piece advantageously has at least one second cavity opening into the contact support surface for receiving a second connecting element which can be inserted into the active part.
  • the practically arbitrarily positionable Konktakt Anlagen the connector can then be held during assembly very accurately in a desired position on the lateral surface of the active part and then releasably secured by means of a suitable connecting means on the active part. Since the contact piece is then held with two points on the active part, a rotationally secured attachment is achieved at the same time. If the second connecting element is a pin which is held in a form-fitting manner in the contact piece, then the adjustment work during assembly is considerably facilitated.
  • one of the two contact pieces of the connector is designed as a plug and the other as a socket.
  • a good current transfer and a simple attachment of the connector are caused by the fact that the jack is designed as a cup, that the inner wall of the cup at least one radially deformable annular
  • Holding contact element, and that of the retaining bolt receiving cavity through The bottom of the cup is guided.
  • the fixation of the retaining bolt and thus the connector on the active part can be done for example by screws or clamp connection.
  • the active parts of the switch poles are arranged parallel to each other in a plane and take up based an axis associated with each of the switch poles occupies a uniform angular position. At the same time this is held on the active part
  • FIG. 1 shows a side view of a designed as a circuit breaker three-pole
  • High-voltage switch with three aligned perpendicular to the drawing plane and actuated by a common drive
  • FIG. 2 shows a plan view of a guided in the insertion direction section through a plug connection contained in one of the three switch poles according to FIG. WAYS FOR CARRYING OUT THE INVENTION
  • a three-pole high voltage switch is shown, whose three poles PR, Ps, PT are each associated with a phase R, S, T of an alternating current.
  • the switch is designed as a circuit breaker.
  • Each switch pole contains a predominantly tubular and with an insulating gas, such as Schwefelhaxafluorid and / or nitrogen, under a pressure of up to several bar filled encapsulation 10 and two designed as outdoor bushings 20 outlets. Since the tube axis of each encapsulation 10 runs perpendicular to the plane of the drawing, only one of the two outdoor bushings 20, namely 20, can be seen. From the encapsulation 10 formed from a metal, such as steel or aluminum, only a cover 11 and a tubular extension 12 (only designated at the pole PR) can be seen in FIG.
  • the lid 11 is curved on the side facing the viewer to the outside and carries a arranged inside the enclosure 10 gear GR, G S resp. GT, which is assigned to one of the three switch poles.
  • the transmission acts on an electrically insulating designed push rod for actuating a contact arrangement. This contact arrangement is part of an axially symmetrical switching chamber arranged in the interior of the encapsulation 10 (not visible in FIG. 1).
  • the transmission has a gas-tight guided through the lid 11 shaft. Guided by the lid 11 ends of the transmission G 3 associated shaft are connected via two horizontally guided coupling rods K with the outer shaft ends of the gear GR and G ⁇ .
  • switching chamber is attached to the lid 11.
  • the lid 11 closes the enclosure 10 gas-tight to the outside.
  • the transmission Gs is connected to a central drive A.
  • a central drive A and coupling rods K but also separate drives can be provided, which are each connected to one of the transmission.
  • the pipe socket 12 carries the outdoor bushing 20 and an undesignated core of a current transformer.
  • second pipe socket carries the second outdoor bushing and another Stromwandlerkern.
  • an outdoor bushing 20 may also be a cable termination or an encapsulated device, such as a bus bar, provided.
  • a feedthrough conductor of the outdoor bushing 20 is electrically connected via a plug connection with a current-carrying part of the switching chamber (not visible in FIG. 1).
  • a current-carrying part of the switching chamber not visible in FIG. 1.
  • This connector includes two designed as a plug and a socket contacts 31, 32, of which the contact piece 31 is associated with the guided through the enclosure 10 hollow feedthrough conductor 21 of the outdoor bushing 20 and the contact piece 32 of acting as an active part of the switch pole P 3 switching chamber 40.
  • the contact piece 32 is formed as a cup and has outside on the cup bottom on a lateral surface of a designed as a hollow body 41 current-carrying part of the switching chamber 40 supportable contact bearing surface 33. In the bottom of the cup opening into the contact surface 33, formed as a through hole cavity 34 is formed.
  • This cavity 34 receives a connecting element 35, which is designed as a screwable retaining bolt and screwed into an internal thread of the hollow body 41 of the switching chamber 40.
  • the contact piece 32 is releasably attached to the hollow body 41.
  • the lateral surface of the hollow body 41 has a mating contact surface cooperating with the contact bearing surface.
  • the contact bearing surface 33 and the mating contact surface are generally planar, but may also be curved. From Fig.2 are also coincident with the axis of the enclosure 10 symmetry axis 42 of the axisymmetric switching chamber 40, the actuation of the switching chamber 40 enabling insulating rod 43 and the switching chamber 40 on the cover 11 supporting isolator 44 shown.
  • a cavity opening into the contact support surface 33 for receiving a connecting element 37 designed as a pin is formed in the contact piece 32.
  • the pin 37 in turn is held in an opening into the mating contact surface cavity of the hollow body 41.
  • the pin and the associated cavities on the contact piece 32 and the hollow body 41 may have a round profile. To achieve positive locking angular, oval or any other profile is beneficial.
  • the contact piece 32 When attaching the contact piece 32 to the switching chamber 40, the contact piece 32 is first positioned by means of the pin 37 on the formed as a mating contact surface portion of the lateral surface of the hollow body 41. If the pin is held in a form-fitting manner, then the cavity 34 and the internal thread provided in the switching chamber are in line and now the contact piece 32 can be fixed directly to the switching chamber 40 without further adjustment work with the aid of the screw bolt 35.
  • the inner wall of the cup bears radially deformable annular contact elements 36, which facilitate the passage of current between the two contact pieces 31 and 32.
  • the contact 31 formed as the end of the feedthrough conductor 21 is inserted into the interior of the cup.
  • the provided on the hollow body 41 mating contact surface is advantageously designed so that the contact piece 32 is fixed in at least two positions on the hollow body 41, which are offset in the circumferential direction by a predetermined angle to each other. It can then namely arranged in the individual Polkapselungen 10 switching chambers 40 and gear G R , Gs resp. GT are held relative to the axes of symmetry 42 each in a uniform angular position.
  • the Heidelbergkammem 40 held in the capsules 10, not apparent from Figure 1 are mutually parallel in a horizontal plane arranged and are as well as the transmission G R , G s resp. G ⁇ with respect to the plane perpendicular to the plane of symmetry axes 42 (not designated in Figure 1) in the circumferential direction in a uniform angular position.
  • the high voltage switch can also be designed as a disconnector or earthing switch.
  • the active part is then generally no longer designed as a switching chamber 40 and contains substantially only the acted upon by the transmission with force contact arrangement.

Abstract

L'invention concerne un pôle conçu pour un interrupteur haute tension polyphasé, blindé de manière monophasée et présentant un tube de blindage (10), une partie active (40) orientée le long de l'axe (42) du tube et au moins un connecteur à fiches (30), ledit connecteur à fiches contient deux plots de contact (31, 32), dont le premier (31) est associé à un conducteur de traversée (21) de sortie d'interrupteur (20), guidé à travers le blindage (10), le second (32) étant associé à la partie active (40) du pôle. Le second plot de contact (32) présente une surface d'appui de contact (33) en appui sur une surface de contact antagoniste de la partie active (40), ainsi qu'une partie (34, 35, 37) d'un élément servant à établir une connexion détachable avec la partie active (40). Le second plot de contact (32) peut être fixé sur la surface de contact antagoniste, dans un nombre de positions correspondant au nombre de phases. Pour produire ledit interrupteur, il est de ce fait possible d'utiliser des blindages, des parties actives et des connecteurs à fiches identiques pour tous les pôles et de ne requérir d'une commande centrale agissant sur tous les pôles.
PCT/CH2006/000055 2005-02-10 2006-01-26 Pole d'interrupteur WO2006084401A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05405062A EP1691388B1 (fr) 2005-02-10 2005-02-10 Connecteur enfichable
EP05405062.0 2005-02-10

Publications (1)

Publication Number Publication Date
WO2006084401A1 true WO2006084401A1 (fr) 2006-08-17

Family

ID=34942906

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2006/000055 WO2006084401A1 (fr) 2005-02-10 2006-01-26 Pole d'interrupteur

Country Status (4)

Country Link
EP (1) EP1691388B1 (fr)
AT (1) ATE383653T1 (fr)
DE (1) DE502005002493D1 (fr)
WO (1) WO2006084401A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8378241B1 (en) * 2011-07-28 2013-02-19 Abb Technology Ag Self-locking connector clip
US10978263B1 (en) * 2020-04-07 2021-04-13 Abb Schweiz Ag Coupling system for interrupter-conductor connection in high voltage circuit breakers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3318344A1 (de) * 1982-06-07 1983-12-08 BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau Hochspannungsanlage
DE3904439A1 (de) * 1989-02-10 1990-08-16 Siemens Ag Metallgekapselter druckgas-leistungsschalter mit anschlussvorrichtungen der unterbrechereinheit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3318344A1 (de) * 1982-06-07 1983-12-08 BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau Hochspannungsanlage
DE3904439A1 (de) * 1989-02-10 1990-08-16 Siemens Ag Metallgekapselter druckgas-leistungsschalter mit anschlussvorrichtungen der unterbrechereinheit

Also Published As

Publication number Publication date
EP1691388A1 (fr) 2006-08-16
EP1691388B1 (fr) 2008-01-09
DE502005002493D1 (de) 2008-02-21
ATE383653T1 (de) 2008-01-15

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