EP1032009A2 - Interrupteur à gaz comprimé - Google Patents

Interrupteur à gaz comprimé Download PDF

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Publication number
EP1032009A2
EP1032009A2 EP99122825A EP99122825A EP1032009A2 EP 1032009 A2 EP1032009 A2 EP 1032009A2 EP 99122825 A EP99122825 A EP 99122825A EP 99122825 A EP99122825 A EP 99122825A EP 1032009 A2 EP1032009 A2 EP 1032009A2
Authority
EP
European Patent Office
Prior art keywords
current path
current
contact
rod
gas switch
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
EP99122825A
Other languages
German (de)
English (en)
Other versions
EP1032009B1 (fr
EP1032009A3 (fr
Inventor
Viktor Dipl.Ing. Bierich
Jürgen Dipl.Ing. Faber
Andreas Dipl.-Ing. Schiemann
Achim Dipl.-Ing. Stelter
Dieter Dipl.-Ing. Vondereck
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.)
GE Grid GmbH
Original Assignee
Alstom Energietechnik GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7898611&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1032009(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Alstom Energietechnik GmbH filed Critical Alstom Energietechnik GmbH
Publication of EP1032009A2 publication Critical patent/EP1032009A2/fr
Publication of EP1032009A3 publication Critical patent/EP1032009A3/fr
Application granted granted Critical
Publication of EP1032009B1 publication Critical patent/EP1032009B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/904—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism characterised by the transmission between operating mechanism and piston or movable contact
    • 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
    • H01H2033/028—Details the cooperating contacts being both actuated simultaneously in opposite directions
    • 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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts

Definitions

  • the invention relates to a gas pressure switch as he for example from German patent DE 196 31 323 C1 is known.
  • Each of the two Contact pieces is electrical with a spring contacts Power supply connected from the outside via connectors are accessible, and to whom the current to be switched is fed.
  • the two contact pieces are over one Transmission device coupled together so that they run in the opposite direction from a single drive in the longitudinal direction can be shifted towards each other.
  • the Transmission device has a bellcrank on which two rods are pivotally held. The first of the two Rods is connected to an insulating nozzle that the first of the two contact pieces is held. The another second rod is on a contact unit body attached the electrically to the second contact piece connected is.
  • the bell crank is about an axis of rotation swiveling, which in turn within the gas switch attached and electrically connected to the second Contact piece associated second connector connected is. This creates the main current path from that second contact piece via the spring contact and Power supply to the second connector runs Parallel current path from the second contact piece the contact unit body, the second rod, the Deflection lever and the axis of rotation to the second connector leads.
  • EP 313 813 A1 is a Gas pressure switch known as A rack and pinion transmission is provided is.
  • the object of the invention is to provide a gas pressure switch create in which a Damage to mechanical parts of the parallel current path is prevented.
  • the invention is based on the knowledge that, on the one hand mechanical components of the parallel current path through a large current can be damaged, but that it on the other hand, there is no need for the current in the To interrupt the parallel current path completely. Instead was recognized in the invention that it is sufficient if at least not a large current via the parallel current path flows. According to the invention, this is achieved by a current-reducing Component reached in the parallel current path. By on this way reduced electricity become mechanical components not damaged in the parallel current path.
  • the current-reducing component consists of a ferromagnetic material.
  • the ferromagnetic material of the current-reducing component has the consequence that a flowing through this component Electricity is displaced to the outside. So that is AC resistance of this component is a multiple of that DC resistance. By increasing this AC resistance due to current displacement the current in the parallel current path decreases. It flows thus no more large current over the current reducing Component. So there is a risk of damage to mechanical parts in the parallel current path - like mentioned - no longer available.
  • the transmission device is any type of Coupling of the two contact pieces can act, so too to a transmission device, as in the German Patent DE 197 38 697 C1 or in the European Patent application EP 313 813 A1 is described.
  • the ferromagnetic Material has a relative permeability constant, which is very large compared to one.
  • This AC resistance causes - as mentioned - one Decrease in the current in the parallel current path. Under the Prerequisite that the pressure gas switch for interruption of a certain maximum current is provided hence the current via the parallel current path to one the desired maximum safe value is limited, in which damage to components of the parallel current path is not to be feared.
  • the invention not only in connection with one Transmission device can be applied.
  • the Invention can be used wherever a gas pressure switch in a parallel current path large current to damage mechanical parts would lead. According to the invention, this large current is passed through a current-reducing component in the parallel current path reduced.
  • Pressure gas switch is with insulating glass, for example SF6 filled and laterally by a tubular insulator 1 surround.
  • switch type it is about an outdoor switch.
  • the gas pressure switch has two in opposite directions along its Center axis M movable contact pieces 2 and 3, the form an interruption point.
  • the second contact piece 2 is a contact pin and the bottom of a pot-shaped one Contact unit body 4 attached.
  • the contact unit body 4 surrounds the contact piece 2 and the central axis M of the gas pressure switch coaxial and points with its opening towards the point of interruption, and down.
  • the contact unit body 4 extends telescopically into one tubular, open towards the point of interruption Part of a power supply 5 (for the contact piece 2) and can be moved out of it.
  • the power supply 5 surrounds, also coaxially, the central axis M of the Gas pressure switch.
  • a bell crank 6 arranged, whose axis of rotation 17 is the longitudinal axis of the gas pressure switch in cuts at a right angle.
  • the axis of rotation 17 is within the pressure gas switch in particular on the Power supply 5 attached and is thus electrical with the Power supply 5 connected.
  • the bell crank 6 has two lever arms, on the other outer ends each rotatably mounted a rod 7, 8 is. Both rods 7, 8 project downwards.
  • the first bar 7 is rotatable at its lower end in the upper end region an insulating nozzle 9 attached.
  • the insulating material nozzle 9 laterally surrounds the mutually facing ends of the first Contact piece 3 and the second contact piece 2.
  • the insulating nozzle 9 is at the top of a hollow cylindrical metal contact body 10 attached, which coaxially both the central axis M of the Pressure gas switch and partly the contact piece 3 encloses.
  • This contact piece 3 is a Tulip contact that is in the on state of the Gas pressure switch, the contact piece 2 at its end region touched on the scope.
  • the contact piece 3 is at the bottom of the contact body 10 attached and electrically connected to it.
  • the pressure gas switch works on the pressure chamber principle.
  • the interior of the contact body 10 is on the End away from the break point through a floor locked.
  • the interior of the contact body 10 serves here as a pressure chamber 19.
  • This pressure chamber 19 penetrates in the case of a switch-off process, first of all from the arc heated insulating gas. In the vicinity of the At zero current, the gas pressure in the switching path increases and it flows in the pressure chamber 19 temporarily stored insulating gas by a in the Isolierstoffdüse 9 located in the area of Switching path and blows the arc.
  • the extinguishing gas flows from when the arc is blown the compression space 20 via check valves 23 Pressure chamber 19 and from there to the insulating nozzle 9.
  • Pressure relief valves 24 limit the pressure in the Compression chamber 20 and thus relieve the drive 11.
  • a vertical in the central axis M of the pressure gas switch Drive rod 12 up during a switch-on process and moved down during a shutdown.
  • the Drive rod 12 continues in the direction of Break point in a blowback pipe 26 continues.
  • the Drive rod 12 is coaxial from a tubular Isolator 13 surrounded. Above is insulator 13 the end of a power supply 14 for the tulip contact piece on.
  • the power supply 14 coaxially surrounds the central axis M of the Gas pressure switch and is tubular, being her lower end led outwards in a plate shape is. There are to the outside of the pressure gas switch electrical connection options available, in particular a connector for the current to be supplied. Inside is in the plate-shaped end of the power supply 14 an opening for the drive rod 12 available. This opening is correct with the inner cross-sectional area of the tubular part the power supply 14 match.
  • this power supply 14 On the plate-shaped end of this power supply 14 is the insulator 1 attached.
  • the transitions from isolator 1 and from the insulator 13 to the plate-shaped end of the power supply 14 are gas-tight.
  • the contact body 10 can be used during switching operations telescopically into and out of the power supply 14 move out. Via spring contacts 18 at the top the power supply 14 are attached, exists in each Switch position a conductive contact between the Power supply 14 and the contact body 10 with the Contact piece 3.
  • the contact body 10 At the end of the drive rod facing away from the drive 11 12 is the contact body 10 with the insulating material nozzle 9 attached.
  • the Isolierstoffdüse 9 points at her from that Contact piece 3 facing away from a plate-shaped Power transmission element 15 made of metal, which is from the insulating nozzle 9 radially to the inner wall of the Pot-shaped contact unit body 4 extends.
  • a plate-shaped Power transmission element 15 made of metal, which is from the insulating nozzle 9 radially to the inner wall of the Pot-shaped contact unit body 4 extends.
  • the inner wall of the contact unit body 4 sliding connection with one or more rings PTFE. In this way, the insulating nozzle 9 with the rod 7 rotatably mounted thereon.
  • the contact unit body 4 is through the tubular Part of the power supply 5 out. This is also for straight guidance of the force transmission element 15 this in turn ensures within the contact unit body 4 is slidably mounted.
  • Spring contacts 22 on the inner wall the power supply 5 ensure a conductive contact between the power supply 5 and the outer wall of the (metal) contact unit body 4.
  • the power supply 5 merges into a cover at the top the insulator 1 gas-tight at the top and on the outside electrical connections or connectors available.
  • the Main current path runs from the contact piece 2 over the Contact unit body 4, the spring contacts 22 and the Power supply 5 to the cover of the power supply 5, the represents a connector for the supply of electricity.
  • the parallel current path runs from the contact piece 2 the contact unit body 4, the second rod 8, the associated lever arm, the bell crank 6, the axis of rotation 17th and the power supply 5 to the above Cover of the power supply 5.
  • the second rod 8 is made of a ferromagnetic Material made. This takes place in the second rod 8 a displacement of the current to the outside. Through this Current displacement is the AC resistance Multiple of the DC resistance. With this, the second rod 8 a current-reducing component in the Parallel current path.
  • the AC resistance of the second rod 8 is depending on the relative permeability constant of the used ferromagnetic material. This constant should be as large as possible compared to one. This can for example through the use of iron, nickel or Cobalt or mixtures thereof as material for the second Bar 8 can be reached. This way everyone can desired AC resistance via the choice of used material or their mixture set become.
  • the second current therefore flows in the parallel current path Rod 8 made of ferromagnetic material and of it resulting AC resistance is not a large current. So there is no risk that due to large currents e.g. the bearings of the bell crank 6 or the second rod 8 be harmed.

Landscapes

  • Circuit Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
EP19990122825 1999-02-24 1999-11-17 Interrupteur à gaz comprimé Revoked EP1032009B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19907838 1999-02-24
DE1999107838 DE19907838A1 (de) 1999-02-24 1999-02-24 Druckgasschalter

Publications (3)

Publication Number Publication Date
EP1032009A2 true EP1032009A2 (fr) 2000-08-30
EP1032009A3 EP1032009A3 (fr) 2001-08-29
EP1032009B1 EP1032009B1 (fr) 2006-08-02

Family

ID=7898611

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990122825 Revoked EP1032009B1 (fr) 1999-02-24 1999-11-17 Interrupteur à gaz comprimé

Country Status (2)

Country Link
EP (1) EP1032009B1 (fr)
DE (2) DE19907838A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1906425A1 (fr) * 2006-09-29 2008-04-02 Areva T&D Sa Actionnement par came cylindrique des contacts d'une chambre de coupure à double mouvement
FR2906929A1 (fr) * 2006-10-09 2008-04-11 Areva T & D Sa Actionnement par des contacts d'une chambre de coupure a double mouvement par un tube isolant
EP2546851A1 (fr) 2011-07-12 2013-01-16 Alstom Technology Ltd Dispositif interrupteur pour haute tension dans un reseau électrique
WO2013037726A1 (fr) 2011-09-12 2013-03-21 Alstom Technology Ltd Chambre d'interruption destinée à un disjoncteur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014010434U1 (de) 2014-02-12 2015-08-03 Alstom Technology Ltd Elektrisches Hochspannungsschaltgerät

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH675175A5 (fr) * 1987-10-27 1990-08-31 Bbc Brown Boveri & Cie
DE4427163A1 (de) * 1994-08-01 1996-02-08 Abb Management Ag Druckgasschalter
DE19622460C2 (de) * 1996-05-24 1998-04-02 Siemens Ag Hochspannungs-Leistungsschalter mit zwei antreibbaren Schaltkontaktstücken
DE19631323C1 (de) * 1996-08-01 1997-10-16 Aeg Energietechnik Gmbh Druckgasschalter
DE19738697C1 (de) * 1997-08-29 1998-11-26 Siemens Ag Hochspannungsleistungsschalter mit antreibbarem Gegenkontaktstück

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1906425A1 (fr) * 2006-09-29 2008-04-02 Areva T&D Sa Actionnement par came cylindrique des contacts d'une chambre de coupure à double mouvement
FR2906642A1 (fr) * 2006-09-29 2008-04-04 Areva T & D Sa Actionnement par came cylindrique des contacts d'une chambre de coupure a double mouvement.
US7777149B2 (en) 2006-09-29 2010-08-17 Areva T&D Sa Actuating the oppositely-moving contacts of an interrupting chamber by a cylindrical cam
CN101170033B (zh) * 2006-09-29 2012-07-04 阿雷瓦T&D股份公司 通过圆柱形凸轮致动灭弧室的相反运动的触头
FR2906929A1 (fr) * 2006-10-09 2008-04-11 Areva T & D Sa Actionnement par des contacts d'une chambre de coupure a double mouvement par un tube isolant
EP1912235A1 (fr) * 2006-10-09 2008-04-16 Areva T&D Sa Actionnement par des contacts d'une chambre de coupure a double mouvement par un tube isolant
US7642480B2 (en) 2006-10-09 2010-01-05 Areva T&D Sa Actuating the contacts of an interrupting chamber in opposite directions via an insulating tube
EP2546851A1 (fr) 2011-07-12 2013-01-16 Alstom Technology Ltd Dispositif interrupteur pour haute tension dans un reseau électrique
WO2013037726A1 (fr) 2011-09-12 2013-03-21 Alstom Technology Ltd Chambre d'interruption destinée à un disjoncteur

Also Published As

Publication number Publication date
EP1032009B1 (fr) 2006-08-02
EP1032009A3 (fr) 2001-08-29
DE19907838A1 (de) 2000-08-31
DE59913734D1 (de) 2006-09-14

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