EP1629578A2 - Composant de barre collectrice isole au gaz comprenant une traversee exterieure - Google Patents

Composant de barre collectrice isole au gaz comprenant une traversee exterieure

Info

Publication number
EP1629578A2
EP1629578A2 EP04730466A EP04730466A EP1629578A2 EP 1629578 A2 EP1629578 A2 EP 1629578A2 EP 04730466 A EP04730466 A EP 04730466A EP 04730466 A EP04730466 A EP 04730466A EP 1629578 A2 EP1629578 A2 EP 1629578A2
Authority
EP
European Patent Office
Prior art keywords
gas
insulated
outdoor
busbar component
housing
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.)
Withdrawn
Application number
EP04730466A
Other languages
German (de)
English (en)
Inventor
Hans-Peter Dambietz
Manfred Meinherz
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 AG
Original Assignee
Siemens AG
Siemens Corp
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 AG, Siemens Corp filed Critical Siemens AG
Publication of EP1629578A2 publication Critical patent/EP1629578A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B5/00—Non-enclosed substations; Substations with enclosed and non-enclosed equipment
    • H02B5/06—Non-enclosed substations; Substations with enclosed and non-enclosed equipment gas-insulated

Definitions

  • the invention relates to a gas-insulated busbar component with a grounded housing filled with protective gas and with at least one busbar conductor which extends in the housing in a longitudinal direction and is supported on the housing by insulating busbar supports, each busbar conductor being connected to a protective gas-insulated disconnector.
  • Such a gas-insulated busbar component is known for example from DE 101 19 530 AI.
  • a switchgear disclosed there is designed for a three-phase network and has two busbars running parallel to one another, each of which is composed of busbar components which are connected to one another at the end face by means of a gas-tight flange connection.
  • Each busbar component has three-pole encapsulated busbar conductors and is filled with an insulating shielding gas with a high dielectric strength.
  • the housing which is at ground potential, is gas-tightly connected to a switch housing in which circuit breakers are arranged via a tubular connecting piece.
  • Protective gas-insulated disconnectors are accommodated in the connecting piece, - • which, in a contact position, connect one busbar conductor to one of the circuit breakers. Outdoor bushings, which are attached to the switch housing, are used to connect the circuit breaker to air-insulated high-voltage lines, each high-voltage line being connected to the disconnector via one of the circuit breakers.
  • the inert gas-insulated busbar of the previously known 2 busbar components can therefore only be electrically connected to the air-insulated lines using a circuit breaker.
  • multi-pole encapsulated and single-pole encapsulated busbar components are known for example from DE 31 37 783 and DE 31 41 437 AI.
  • the object of the invention is to provide a gas-insulated busbar component of the type mentioned at the outset, which can be connected and disconnected from an air-insulated conductor in a simple manner even in the operating state.
  • the invention solves this problem in that the isolating switch is arranged in an outdoor bushing fastened to the housing.
  • one or more air-insulated lines can be easily converted into a protective gas atmosphere that prevails in the interior of the housing when the busbar component is in the operating state.
  • the busbar component is connected in a gastight manner to other tubular housings by means of suitable connecting means, such as flange connections, so that a closed gas space is created which can be filled with a protective gas such as sulfuric oxide xafluoride.
  • busbar conductors are provided, each with an outdoor bushing, the spacings between the outdoor bushings corresponding to the voltage-dependent pitch to avoid voltage flashovers.
  • a busbar component according to the invention further developed in this way is particularly suitable for three-phase three-phase networks.
  • the outdoor bushings are arranged on one level.
  • the outdoor bushings can be aligned vertically and arranged with their center of gravity exactly above the housing that supports them, which simplifies the construction of the busbar component.
  • the outdoor bushings are expediently tubular or hollow cylindrical.
  • these usually extend parallel to one another in a ..hoxizontal direction ..
  • At least one of the outdoor bushings has an earthing switch 4th on.
  • the earthing switch has an earthed one
  • Switch finger which is in an earth position on a counter contact, which is electrically connected to the busbar.
  • a grounding shaft is expediently provided for driving the earthing switch and is mounted in the fastening means of the outdoor bushing.
  • the earth shaft is driven, for example, by a motor or by hand.
  • Each isolating switch is advantageously held in the outdoor bushing by means of holding means made of insulating material.
  • the holding means ensure that the disconnector in the outdoor bushing is held independently of the busbar conductor.
  • the outdoor bushing can be manufactured as an independent component together with the isolating switch and connected on site to the housing and the busbar conductor, for example via a suitable plug contact.
  • the plug contact or other connection of the isolating switch to the busbar conductor provides additional support for the isolating switch and increases the stability of the isolating switch.
  • the holding means are advantageously gas-tight.
  • a bulkhead bushing that limits a separating gas space formed in the outdoor bushing can be considered as the gas-tight holding means.
  • - réelle engages through an e lectric • with the circuit breaker associated connecting conductor, the bulkhead and is centered on appropriate sealing means connected to the gas-tight bulkhead.
  • the isolating gas space thus forms a gas space which is delimited by the housing and which is independent of the housing and which, for example, can be filled with a different gas or a different pressure can be applied.
  • the holding means are gas-permeable, so that a common gas space is formed from the inside of the outdoor bushing and its housing interior in the operating state, which can be checked for leaks after the final assembly of the gas-insulated busbar component in a suitable system by means of a common leak test.
  • a support is suitable, for example, as a gas-permeable holding means.
  • the isolating switch advantageously has contact pieces lying opposite one another on the end face, the isolating switch being able to be transferred from a contact position which enables the flow of current into a disconnected position by initiating a lifting movement, in which position an electrically insulating
  • the design of the isolating switch is largely matched to a homogeneous cylindrical conductor extending in an axial direction, so that experience with conventional outdoor bushings which do not have an isolating switch in their interior can be used. This applies both to their dimensioning and to the material used.
  • the isolating switch has a stationary drive-in contact and a slide contact which is firmly supported on fastening means of the outdoor bushing via a hollow connecting rod, a switch pin movably guided by the slide contact being provided for contacting the drive-in contact and being driven by drive means arranged in the connection conductor ,
  • the drive means arranged in the hollow connecting conductor for example
  • the disconnector has two fixed contact pieces that can be held in a simple manner. A complex, movable mounting of a contact piece on the fastening means is thus avoided.
  • At least one isolating shaft is provided for initiating a drive movement in the isolating switch.
  • Each isolator shaft is mounted in a fastener in the outdoor bushing by means of a suitable rotary bearing, with suitable sealing means for a gas-tight passage of the isolator shaft, for example, through the outer wall of the fastener. the outdoor duct.
  • the isolating shaft can also be mounted gas-tight in the housing.
  • the drive movement can be initiated via a rotary movement into the gas-insulated interior of the outdoor bushing during operation.
  • an insulating rocker consisting of an insulating material for initiating a drive movement.
  • the isolating rocker is mechanically connected, for example, to a coupling rod which, at its end facing away from the isolating rocker, forms a switching pin which, when the isolating switch is in a contact position, establishes the conductive connection between its contact pieces.
  • the isolating rocker converts a rotary movement as a drive movement into a linear movement or stroke movement and directs a translatory movement into the disconnector
  • Each outdoor bushing is advantageously equipped with a current transformer.
  • the current transformer is connected on the secondary side to the grounded housing and can be designed as a throw-over current transformer, so that there is no need to open the common or separate gas spaces when the throw-over current transformer has to be replaced.
  • Field control elements are expediently provided to avoid partial discharges in the outdoor bushing.
  • a display element for displaying the position of the disconnector can be advantageous.
  • At least one drive unit supported on the outdoor bushing is advantageously provided for generating a drive movement.
  • the outdoor bushing can be manufactured as a ready-to-use single component, regardless of the housing.
  • a drive unit can either drive the disconnector of one pole or the disconnector of all poles.
  • FIG. 1 shows an embodiment of the gas-insulated single-rail component in a sectional side view and FIG. 2 shows the gas-insulated busbar component according to FIG. 1 in a longitudinal section.
  • FIG. 1 shows an embodiment of the gas-insulated busbar component 1 according to the invention in a longitudinal section.
  • the busbar component 1 shown there has an encapsulating housing 2 which is at ground potential and which is essentially tubular and hollow-cylindrical.
  • busbar conductors 3 extend in the longitudinal direction of the housing 2 and are held in the housing 2 by means of supports, not shown, made of an insulating material.
  • connecting flanges 5 can be seen, by means of which the housing 2 can be connected in a gas-tight manner to further tubular housing components to form a closed gas space.
  • plug contacts 6a, 6b the connecting pin, designated 6a, of the plug contact being insertable into the recess, designated ⁇ b, of a correspondingly designed connection component.
  • connection pieces 7 are also formed, which are each provided for the gas-tight connection of an outdoor bushing.
  • the outdoor bushing 8 has a hollow cylindrical insulator 9 with a cavity 10 for receiving a disconnector 11.
  • the isolating switch 11 consists of a fixed run-in contact 12 and a likewise fixed slide contact 13, the run-in contact 12 via a contact rod 14 with an outdoor connection 15 9 Connection of an air-insulated high-voltage line is connected.
  • the outdoor connection 15 is arranged at the end of the insulator 9 and has a closure cap 16 which is connected to the insulator 9 in a gas-tight manner via adhesive and closes the cavity 10 of the insulator 9 in a gas-tight manner.
  • a switching pin 17 is movably guided in the sliding contact 13, the sliding contact 13 being electrically connected to the busbar conductor 3 via a hollow connecting conductor 18, a plug contact 19 arranged in the housing 2 and a cross connector 20.
  • the cross connector 20 is integrally formed on the busbar 3.
  • the contact rod 14, the run-in contact 12, the switching pin 17, the sliding contact 13, the connecting conductor 18, the plug contact 19 and the cross connector 20 in a contact position of the disconnector 11, in which the switching pin 17 is inserted into the run-in contact 12 , a conductive connection between the outdoor connection 15 and the respective busbar conductor 3.
  • the outdoor bushing 8 has fastening means 21, which are made of a metallic material, such as aluminum, and comprise a flange section 22, which is glued to the insulator 9, and an intermediate housing 23.
  • the fastening means 21 are also of tubular design and have a straight course in the direction of the longitudinal extent of the insulator 9.
  • the intermediate housing 23 is screwed tightly to the connecting piece 7 via a flange connection, non-recognizable sealing means ensuring a gas-tight connection of the outdoor bushing 8 to the housing 2.
  • an electrically non-conductive insulating rocker 24 is provided in the intermediate housing 23, lateral holding caps 25 being provided for the gas-tight closure of an intermediate cavity 26 delimited by the intermediate housing 23.
  • the intermediate cavity 26 enlarges the cavity 10.
  • a gas-tight bulkhead bushing 27 is provided as a holding means or holder, which is fixedly mounted between the intermediate housing 23 and the grounded connecting piece 7.
  • the connecting rod 18 projects through the bulkhead bushing 27 in the center, sealing means (not shown in FIG. 1) ensuring a gas-tight connection of the connecting rod 18 to the bulkhead bushing 27.
  • a separate and gas-tight gas space is formed through the cavity 10, which can be filled with an extinguishing or insulating gas, such as sulfur hexafluoride.
  • the bulkhead bushing 27 is made of an insulating material, such as cast resin.
  • the outdoor connection 15 is provided for connecting an air-insulated high-voltage line, whereas the housing 2 is at ground potential.
  • field control elements 28 are provided which are electrically connected to the fastening means 21 and the housing 2.
  • a coupling rod 29 is provided which is articulated on the insulating rocker 24 and on it 11 is fixedly connected to the switching pin 17 via a switching pin guide 30 facing away from the insulating rocker 24. It can be seen that the switching pin 17 and the switching pin guide 30 are arranged within the hollow connecting conductor 18, which for this reason serves as a guide means in addition to a purely electrical connection.
  • the connecting conductor 18 has a lateral opening 31 opposite the insulating rocker 24.
  • the insulating rocker 24 is also non-rotatably connected to a separator shaft 32 which is guided out of the intermediate housing 23 via a suitable rotary bearing equipped with sealing means.
  • a separator shaft 32 which is guided out of the intermediate housing 23 via a suitable rotary bearing equipped with sealing means.
  • the isolating rocker 24 is transferred to a disconnected position 33 indicated in FIG. 1, in which the switching pin 17 is led out of the insertion contact 12, so that a separation distance is provided between the insertion contact 12 and the sliding contact 13.
  • an earthing switch 34 which is provided after opening the isolating switch 17 for earthing the gear side of the isolating switch 17.
  • the earthing switch 34 establishes a conductive connection between an earth contact 35 which is at the potential of the connecting conductor 18 and the housing 2 which is at earth potential.
  • a grounding shaft 36 led out of the intermediate housing 23 is provided for driving the grounding switch 34.
  • a drive box 37 fastened to the intermediate housing 23 is provided for accommodating drive units. The drive units are set up to generate a drive movement for the isolating shaft 32 and for the earthing shaft 36. 12
  • FIG. 2 shows a further embodiment of the gas-insulated busbar component 1 according to the invention in a cross-sectional view.
  • the cross connectors 20, via which the busbar conductors 3 are each connected to a disconnector 11, are designed differently and depending on the position of the respective busbar conductor 3 in the housing 2.
  • the outdoor bushings 8 are arranged in one plane and vertically above the housing 2, so that only one outdoor bushing 8 can be seen in the view in FIG.
  • the outdoor bushing 8 has a coupling current transformer 38 which is connected on the secondary side to the fastening means 21 which is at ground potential.
  • the overcurrent converter 38 can be removed or replaced, for example in the event of maintenance, without opening the gas space 10 or without removing the outdoor bushing 8 from the housing 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

La présente invention concerne un composant de barre collectrice isolé au gaz (1) comprenant un boîtier (2) mis à la terre et rempli de gaz de protection et au moins un conducteur de barre collectrice (3) qui s'étend dans le boîtier (2) dans une direction longitudinale et qui s'appuie sur le boîtier au moyen de supports de barre collectrice isolants (4). Chaque conducteur de barre collectrice (3) est relié à un sectionneur isolé au gaz (11). L'objectif de la présente invention est de mettre au point un composant de ce type qui puisse, même à l'état de fonctionnement, être facilement connecté à un conducteur isolé à l'air et en être déconnecté. A cette fin, le sectionneur (11) est monté dans une traversée extérieure (8) qui est fixée sur le boîtier (2).
EP04730466A 2003-06-02 2004-04-30 Composant de barre collectrice isole au gaz comprenant une traversee exterieure Withdrawn EP1629578A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10325682A DE10325682A1 (de) 2003-06-02 2003-06-02 Gasisoliertes Sammelschienenbauteil mit Freiluftdurchführung
PCT/DE2004/000991 WO2004109882A2 (fr) 2003-06-02 2004-04-30 Composant de barre collectrice isole au gaz comprenant une traversee exterieure

Publications (1)

Publication Number Publication Date
EP1629578A2 true EP1629578A2 (fr) 2006-03-01

Family

ID=33482628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04730466A Withdrawn EP1629578A2 (fr) 2003-06-02 2004-04-30 Composant de barre collectrice isole au gaz comprenant une traversee exterieure

Country Status (5)

Country Link
US (1) US7485807B2 (fr)
EP (1) EP1629578A2 (fr)
CN (1) CN100533886C (fr)
DE (1) DE10325682A1 (fr)
WO (1) WO2004109882A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5116589B2 (ja) * 2008-07-15 2013-01-09 三菱電機株式会社 電力用開閉装置
JP5427587B2 (ja) * 2009-12-21 2014-02-26 株式会社日立製作所 ガス絶縁母線の輸送装置
EP2526597B1 (fr) * 2010-01-18 2016-04-20 ABB Technology AG Module d'encapsulage avec des sectionneurs destine a un equipement electrique
DE102011089398A1 (de) * 2011-12-21 2013-06-27 Siemens Aktiengesellschaft Mehrphasige gasisolierte Schaltanlage
DE102013219172A1 (de) * 2013-09-24 2015-03-26 Siemens Aktiengesellschaft Wandlergehäuseanordnung
CN109935494A (zh) * 2019-03-01 2019-06-25 宏秀电气有限公司 一种隔离轴传动结构及户外高压断路器
CN111900661B (zh) * 2020-07-29 2025-01-24 湖北省电力装备有限公司 一种常压密封空气绝缘环网柜
EP4443462B1 (fr) * 2023-04-03 2025-12-31 Eaton Intelligent Power Limited Appareil de commutation compact

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Publication number Priority date Publication date Assignee Title
US3655930A (en) * 1970-05-07 1972-04-11 Powerdyne Inc Multiple vacuum switch apparatus having longitudinal actuator
BE792445A (fr) * 1971-12-09 1973-03-30 Merlin Gerin Dispositif de connexion des contacts d'embrochage a un jeu de barres d'une cellule haute tension
JPS6325856Y2 (fr) * 1980-09-24 1988-07-14
JPS5772721U (fr) * 1980-10-20 1982-05-04
DE9113633U1 (de) 1991-10-30 1992-04-02 Siemens AG, 8000 München Elektrische Schaltanlage
DE29620438U1 (de) * 1996-11-13 1997-01-23 Siemens AG, 80333 München Kapselungsgehäuse für gasisolierte, metallgekapselte Schaltanlagen
JPH10210613A (ja) 1997-01-21 1998-08-07 Hitachi Ltd 複合形ガス絶縁開閉装置
JP3550962B2 (ja) * 1997-08-07 2004-08-04 株式会社日立製作所 ガス絶縁母線及びガス絶縁開閉装置
DE19856775A1 (de) * 1998-11-30 2000-06-15 Siemens Ag Hochspannungsleistungsschalter mit einer Unterbrechereinheit
EP1174968A1 (fr) * 2000-07-19 2002-01-23 ABB T&D Technology AG Installation de commutation haute tension
DE10119530A1 (de) * 2001-04-12 2002-11-07 Siemens Ag Hochspannungs-Leistungsschalter für eine druckgasisolierte Schaltanlage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004109882A2 *

Also Published As

Publication number Publication date
US7485807B2 (en) 2009-02-03
CN1795597A (zh) 2006-06-28
CN100533886C (zh) 2009-08-26
WO2004109882A2 (fr) 2004-12-16
US20060245128A1 (en) 2006-11-02
DE10325682A1 (de) 2004-12-30
WO2004109882A3 (fr) 2005-05-19

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