EP0872934A1 - Appareil de commutation électrique blindé à isolation gazeuse - Google Patents

Appareil de commutation électrique blindé à isolation gazeuse Download PDF

Info

Publication number
EP0872934A1
EP0872934A1 EP98810267A EP98810267A EP0872934A1 EP 0872934 A1 EP0872934 A1 EP 0872934A1 EP 98810267 A EP98810267 A EP 98810267A EP 98810267 A EP98810267 A EP 98810267A EP 0872934 A1 EP0872934 A1 EP 0872934A1
Authority
EP
European Patent Office
Prior art keywords
shielding electrode
switchgear according
contacting assembly
connecting part
assembly
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.)
Granted
Application number
EP98810267A
Other languages
German (de)
English (en)
Other versions
EP0872934B1 (fr
Inventor
Kurt Kammerl
Markus Vestner
Martin Zürcher
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 Hochspannungstechnik AG
Original Assignee
ABB Asea Brown Boveri Ltd
Asea Brown Boveri AB
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 Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd
Publication of EP0872934A1 publication Critical patent/EP0872934A1/fr
Application granted granted Critical
Publication of EP0872934B1 publication Critical patent/EP0872934B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/08—Arrangements to facilitate replacement of a switch, e.g. cartridge housing

Definitions

  • the invention is based on a metal-encapsulated gas-insulated switchgear according to the Preamble of claim 1.
  • the invention as defined in claim 1 the task is based on a metal encapsulated to specify gas-insulated switchgear, which with lower Assembly effort can be created.
  • the metal-enclosed gas-insulated switchgear is included at least one in a housing along an axis extends mounted active part provided which a contacting assembly on at least one side having.
  • the contacting assembly is electrically conductive connected to at least one with a shielding electrode provided connector.
  • the shielding electrode is with two connected to a space-defining support columns or with a U profile.
  • the two supporting columns, or that U-profile, are facing away from the shielding electrode Side connected with a fitting, which from the space outgoing, for receiving fastening screws has designed holes.
  • the mounting screws for the connecting part are dielectrically shielded in Space between the support columns or between the Legs of the U-profile arranged so that they are special can be easily and quickly assembled or disassembled.
  • the space between the support columns extends in the direction of the axis, the space in the U-profile opens to the side facing away from the drive side, which gives access to the mounting screws from the Front side of the housing is advantageously facilitated.
  • the connecting part has a centrally arranged one Shielding electrode.
  • the one facing the shielding electrode Side of the contacting assembly is between one Contact carrier and a cover introduced Provide gas drying agents.
  • This gas drying agent is when the contact assembly is definitely retracted within a volume inside the shield electrode, the access of the insulating gas to the gas drying agent becomes but guaranteed with simple means.
  • gas drying agent is used together with the Active parts from the housing, in the exemplary embodiment this is a switch housing, removed and can with this Opportunity to be replaced very easily.
  • FIG. 1 shows a section through a Circuit breaker 1 for a metal-encapsulated gas-insulated Switchgear.
  • the circuit breaker 1 has an im essentially cylindrical, made of a metal or a metal alloy manufactured switch housing 2.
  • the opening 3 is on the flange 5 screwed on cover 7 closed, on the side facing away from the flange 5 a drive 8 is flanged pressure-tight.
  • On the flange 6 a cover 9 is attached, which the opening 4th sealed pressure-tight.
  • the drive-side opening 10 is with provided a flange 12, it is with a Bulkhead insulator trained support insulator 13 pressure-tight locked.
  • the support insulator 13 has one in the center electrically conductive sprue 14.
  • the drive 8 opening 11 facing away is provided with a flange 15, it is designed with a bulkhead isolator Post insulator 16 closed pressure-tight.
  • the post insulator 16 has an electrically conductive pouring fitting in the center 17 on.
  • the active parts 19 of the extend along an axis 18 Circuit breaker 1, which consists here, for example, of two extinguishing chambers 20 and 21 connected in series by a electrically conductive connector 22 held together be put together.
  • the axis 18 usually falls not together with the longitudinal axis of the switch housing 2, however, it runs parallel to this.
  • the arcing chamber 21 is also by a not shown Actuator unit connected to the drive 8.
  • the Movable actuating rod 23 is pressure-tight in the Interior of the switch housing 2 introduced. For the pressure-tight insertion of the actuating rod 23 are known various solutions, so here needs to concrete execution not to be received.
  • the Actuating rod 23 can also by a additional support insulator supported against the cover 7 will.
  • For the design of the flange connection of the Drive 8 with the cover 7 are also the different variants possible.
  • the quenching chamber 20 is electrical conductive connector 24 with the pouring fitting 14 connected.
  • the arcing chamber 21 is on the drive 8 opposite side with a contacting assembly 25 provided, which is inserted into a connecting part 26.
  • the connecting part 26 is made of a metal, preferably it is cast from an aluminum alloy, it is with the pouring fitting 17 of the post insulator 16 electrically connected.
  • the active parts 19 are through the two support insulators 13 and 16 are held mechanically.
  • the quenching chamber 20 is usually on the drive side additionally insulated, this support is here however not shown.
  • the switch housing 2 is filled with an insulating medium, preferably SF 6 gas under pressure.
  • an insulating medium preferably SF 6 gas under pressure.
  • two feet 27 are attached for fastening the circuit breaker 1 on a foundation, not shown in the figure.
  • FIG. 2 shows a top view of a first one Embodiment of the connecting part 26, namely from the Seen drive side of the circuit breaker 1 ago.
  • the Connection part 26 has a dielectric advantage trained, toroidal shielding electrode 28.
  • the center of the shielding electrode 28 is cylindrical trained opening 29 provided which is concentric with Axis 18 is arranged.
  • the opening 29 becomes radial Direction limited by an intermediate wall 30, the Opening 29 opposite side as a cylindrical contact surface 31 is formed, the drive side, as shown in Figure 2a can be seen, is provided with a bevel 32.
  • Between the intermediate wall 30 and an outer wall 33 of the Shielding electrode 28 is a wide open one on the drive side Volume 34 provided.
  • the fitting 37 has on the side facing away from the shielding electrode 28 in Center a centering pin 38, which in a corresponding recess of the pouring fitting 17 of the Post insulator 16 fits.
  • the fitting 37 is four Provide holes 39 which the fastening screws record for the connection of the valve 37 with the Socket fitting 17.
  • the heads of the fastening screws are here arranged so that they are in the space 40 between the Support columns 35 lie.
  • FIG 2b shows the partial section B-B indicated in Figure 2 by the connector. From this partial section is the Cross section of a dielectric designed Support column 35 can be seen that on both sides of the Space 40 comparatively large, shielding acting radii 41.
  • the gap 40 opens in the axial direction so that the heads of the Fixing screws after removing the Cap 9 through the opening 4 very easily are accessible so that these mounting screws are very can be solved and assembled quickly and easily.
  • the two support columns 35 can also be made from a single one cast in a metal or metal alloy, dielectrically favorably designed U-profile 50 are replaced, which faces the side of the Circuit breaker opens.
  • This second too Embodiment of the connector 26 ensures that the screw heads are very effectively dielectric shielded and that the heads of the mounting screws through the opening 4 are very easily accessible, so that Fastening screws loosened very quickly and easily or can be assembled.
  • FIG. 3 shows a partial section through the connecting part 26 with the contacting assembly 25 retracted
  • Contact assembly 25 includes an axially extending Housing 42 made of a metal or a metal alloy, which is electrically connected to the quenching chamber 21 is.
  • the housing 42 has a radially inwardly leading Wall 43 on that facing the connector 26 Side is provided with radially extending ribs 44.
  • To the wall 43 leading radially inwards includes in substantially axially extending contact carrier 45, which encloses the intermediate wall 30 of the shielding electrode 28.
  • a guide ring 46 made of a plastic, which rests on the contact surface 31.
  • a groove is worked into which a spiral contact 47 is inserted, which for the electrical contact between the contacting assembly 25 and the Connection part 26 provides.
  • the Bevel 32 makes it easier to retract the Contact assembly 25 and is used to accommodate Tolerances between the connector 26 and the Contacting assembly 25.
  • the spiral contact 47 could can also be embedded in the contact surface 31, as well Guide ring 46.
  • the outer contour of the housing 42 is by means of a Cover 48 up to the front edge of the contact carrier 45 continued.
  • This connected to the housing 42 and through the outer edge of the ribs 44 is centered cover 48 made of a perforated material, for example from a perforated sheet or from a plastic.
  • a cavity between this cover 48, the contact carrier 45 and the Ribs 44 is largely with one Gas drying agent 49 filled, which in one gas-permeable bag is packed.
  • the contact carrier 45 can be radially extended Breakthroughs are provided to the gas circulation through the To improve gas drying agent 49.
  • FIG. 4 shows a partial section through a second Embodiment of the connector 26, namely here instead of the two support columns 35 a dielectrically favorable formed U-profile 50 is provided, which the armature 37th connects to the shielding electrode 28.
  • This U profile 50 is arranged so that its space 40 in Opposite direction to the drive side opens.
  • An arrow 51 indicates 4 shows the direction of the drive 8.
  • the figures are now used to explain the mode of operation a little closer.
  • the two openings 3 and 4 of the Switch housing 2 are designed so that the active parts 19th extended on both sides of the switch housing 2 and can be dismantled. If the operating aisle for the Disassembly of the quenching chambers 21 and 20 on the drive 8 opposite side is provided, then the Arcing chambers 20 and 21 after removing the drive 8 extended to this side and dismantled one after the other.
  • the operating aisle is accordingly advantageously narrow trained, he is usually only a little wider here executed as the length of the extinguishing chambers 20 and 21 this requires. Before extending the quenching chambers 20 and 21 must in this case additionally Connector part 26 can be dismantled to clear the path for that To make the exit free.
  • the disassembly of the connecting part 26 is from the opening 4 very easily possible since there is no additional shielding the fastening screws must be carefully removed.
  • the assembly of the connecting part 26 is also very easily possible, since no additional Shielding for the fastening screws attached and must be adjusted.
  • the centering pin 38 facilitates this correct positioning of the connector 26 at the Assembly, a complex alignment of the connecting part 26 is therefore not necessary.
  • an additional dowel in the Pipe fitting 17 facing surface of fitting 37 be used in a corresponding hole in the Surface of the pouring fitting 17 engages.
  • the one described Plug connection equalizes axial tolerances and thermal expansion effective.
  • the volume 34 inside the shielding electrode 28, which because of the dielectric shape of this shielding electrode 28 inevitably arises here for the accommodation of the Gas drying agent 49 can be used so that none additional modules for positioning the always necessary gas drying agent 49 into the switch housing 2 must be installed.
  • Such additional assemblies are usually in bulges of the wall of the Switch housing 2 placed to make them dielectric shield. Here these bulges can be omitted, which make the switch housing 2 more expensive and its cleaning complicate.
  • This metal encapsulated gas insulated Switchgear allows the aisle either on the Drive side of the switchgear or on the drive 8 Arrange away side.
  • This variable system concept allows an optimal adaptation of the switchgear to the respective structural conditions and to the wishes of Customers.
  • the easy and quick to assemble and disassemble Connection part 26 enables this advantageous System concept, without the installation effort worth mentioning increase.
  • the principle of using the unused space inside the shielding electrodes 28 to accommodate the gas drying agent 49 can generally be used advantageously in metal-encapsulated gas-insulated switchgear if the free access of the SF 6 gas to the gas drying agent 49 is ensured.
  • the connector 26 can also be advantageous for inexpensive and space-saving angular connections at other points in the metal-enclosed gas-insulated switchgear are used, for example for kinking busbars.
  • the corresponding gas compartments of the switchgear can do the same provided with the gas drying agent without great effort will.
  • connection part 26 is installed described in a horizontally arranged housing, it is however, in principle possible, the advantageously trained Connection part 26 with the engaging in this Contact assembly 25 also arranged vertically Provide housings.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
EP98810267A 1997-04-17 1998-03-25 Appareil de commutation électrique blindé à isolation gazeuse Expired - Lifetime EP0872934B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19716022A DE19716022A1 (de) 1997-04-17 1997-04-17 Metallgekapselte gasisolierte Schaltanlage
DE19716022 1997-04-17

Publications (2)

Publication Number Publication Date
EP0872934A1 true EP0872934A1 (fr) 1998-10-21
EP0872934B1 EP0872934B1 (fr) 2001-09-19

Family

ID=7826769

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98810267A Expired - Lifetime EP0872934B1 (fr) 1997-04-17 1998-03-25 Appareil de commutation électrique blindé à isolation gazeuse

Country Status (6)

Country Link
US (1) US5981894A (fr)
EP (1) EP0872934B1 (fr)
JP (1) JPH10336823A (fr)
KR (1) KR100514206B1 (fr)
CN (1) CN1160843C (fr)
DE (2) DE19716022A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10007400C2 (de) * 2000-02-11 2003-11-20 Siemens Ag Elektrische Gleitkontaktanordnung
DE10219299B3 (de) * 2002-04-25 2004-02-12 Siemens Ag Einpolig gekapselte und gasisolierte Schaltanlage

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29904223U1 (de) * 1999-02-24 1999-06-02 Siemens AG, 80333 München Antriebseinrichtung für ein Schaltgerät, insbesondere für Erdungsschalter von Mittelspannungs-Schaltanlagen
DE102010029440A1 (de) * 2010-05-28 2011-12-01 Abb Technology Ag Leistungsschalter
KR101499872B1 (ko) * 2013-11-20 2015-03-06 현대중공업 주식회사 가스절연개폐장치용 차단부 구동 절연조작로드 접합구조

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8912889U1 (de) * 1989-02-07 1990-01-04 Siemens AG, 1000 Berlin und 8000 München Metallgekapselter Druckgas-Leistungsschalter mit einem Schaltgestänge
EP0382323A1 (fr) * 1989-02-07 1990-08-16 Siemens Aktiengesellschaft Disjoncteur de puissance à gaz comprimé, logé dans une enceinte métallique
DE3904439A1 (de) * 1989-02-10 1990-08-16 Siemens Ag Metallgekapselter druckgas-leistungsschalter mit anschlussvorrichtungen der unterbrechereinheit
DE4210545A1 (de) * 1992-03-31 1993-10-07 Asea Brown Boveri Trennschalter für eine metallgekapselte gasisolierte Hochspannungsanlage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2302581A1 (fr) * 1975-02-26 1976-09-24 Merlin Gerin Disjoncteur electrique a autosoufflage a chambre de coupure perfectionnee
US4229627A (en) * 1978-10-04 1980-10-21 Electric Power Research Institute, Inc. Gas puffer type current interrupter and method
CH643394A5 (de) * 1978-10-26 1984-05-30 Tokyo Shibaura Electric Co Gasschalter.
IT8420810V0 (it) * 1984-02-10 1984-02-10 Sace Spa Sistema di contatti d'arco per interruttori elettrici, particolarmente a fluido d'estinzione dell'arco.
US5079391A (en) * 1989-11-11 1992-01-07 Hitachi, Ltd. Puffer type gas circuit breaker, contact cover and insulated nozzle of the breaker
JP2743740B2 (ja) * 1992-11-05 1998-04-22 三菱電機株式会社 ガス絶縁開閉器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8912889U1 (de) * 1989-02-07 1990-01-04 Siemens AG, 1000 Berlin und 8000 München Metallgekapselter Druckgas-Leistungsschalter mit einem Schaltgestänge
EP0382323A1 (fr) * 1989-02-07 1990-08-16 Siemens Aktiengesellschaft Disjoncteur de puissance à gaz comprimé, logé dans une enceinte métallique
DE3904439A1 (de) * 1989-02-10 1990-08-16 Siemens Ag Metallgekapselter druckgas-leistungsschalter mit anschlussvorrichtungen der unterbrechereinheit
DE4210545A1 (de) * 1992-03-31 1993-10-07 Asea Brown Boveri Trennschalter für eine metallgekapselte gasisolierte Hochspannungsanlage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10007400C2 (de) * 2000-02-11 2003-11-20 Siemens Ag Elektrische Gleitkontaktanordnung
DE10219299B3 (de) * 2002-04-25 2004-02-12 Siemens Ag Einpolig gekapselte und gasisolierte Schaltanlage

Also Published As

Publication number Publication date
DE19716022A1 (de) 1998-10-22
KR100514206B1 (ko) 2005-11-25
EP0872934B1 (fr) 2001-09-19
US5981894A (en) 1999-11-09
JPH10336823A (ja) 1998-12-18
CN1199946A (zh) 1998-11-25
KR19980081355A (ko) 1998-11-25
DE59801491D1 (de) 2001-10-25
CN1160843C (zh) 2004-08-04

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