EP1032009A2 - Druckgasschalter - Google Patents
Druckgasschalter Download PDFInfo
- 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
Links
Images
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)
Abstract
Description
- der Druckgasschalter weist eine Unterbrechungsstelle auf,
- die Unterbrechungsstelle weist zwei Kontaktstücke auf,
- von jedem der beiden Kontaktstücke verläuft ein Hauptstrompfad zu einem Anschlußstück,
- zu einem der beiden Hauptstrompfade ist ein Parallelstrompfad vorhanden,
- in dem Parallelstrompfad ist ein stromminderndes Bauteil enthalten.
- die beiden Kontaktstücke sind über eine Übertragungsvorrichtung miteinander gekoppelt,
- der Parallelstrompfad verläuft zumindest teilweise über die Übertragungsvorrichtung,
- ein Bauteil der Übertragungsvorrichtung besteht aus dem ferromagnetischen Material.
- die Übertragungsvorrichtung ist mit einem zwei Hebelarme aufweisenden Umlenkhebel versehen,
- einer der beiden Hebelarme ist mit einer Isololierstoffdüse verbunden,
- der andere Hebelarm ist über eine Stange elektrisch mit einem der beiden Kontaktstücke verbunden,
- der Parallelstrompfad verläuft von diesem Kontaktstück über die Stange, den anderen Hebelarm und den Umlenkhebel zu dem Anschlußstück,
- die Stange besteht aus dem ferromagnetischen Material.
Claims (6)
- Druckgasschalter mit folgenden Merkmalen:der Druckgasschalter weist eine Unterbrechungsstelle auf,die Unterbrechungsstelle weist zwei Kontaktstücke (2, 3) auf,von jedem der beiden Kontaktstücke (2, 3) verläuft ein Hauptstrompfad zu einem Anschlußstück,zu einem der beiden Hauptstrompfade ist ein Parallelstrompfad vorhanden,in dem Parallelstrompfad ist ein stromminderndes Bauteil enthalten.
- Druckgasschalter nach Anspruch 1 mit dem weiteren Merkmal:
das strommindernde Bauteil besteht aus einem ferromagnetischen Material. - Druckgasschalter nach Anspruch 2 mit folgenden weiteren Merkmalen:die beiden Kontaktstücke (2, 3) sind über eine Übertragungsvorrichtung miteinander gekoppelt,der Parallelstrompfad verläuft zumindest teilweise über die Übertragungsvorrichtung,ein Bauteil der Übertragungsvorrichtung besteht aus dem ferromagnetischen Material.
- Druckgasschalter nach Anspruch 3 mit folgenden weiteren Merkmalen:die Übertragungsvorrichtung ist mit einem zwei Hebelarme aufweisenden Umlenkhebel (6) versehen,einer der beiden Hebelarme ist mit einer Isololierstoffdüse (9) verbunden,der andere Hebelarm ist über eine Stange (8) elektrisch mit einem der beiden Kontaktstücke (2) verbunden,der Parallelstrompfad verläuft von diesem Kontaktstück (2) über die Stange (8), den anderen Hebelarm und den Umlenkhebel (6) zu dem Anschlußstück,die Stange (8) besteht aus dem ferromagnetischen Material.
- Druckgasschalter nach einem der Ansprüche 2 bis 4 mit dem weiteren Merkmal:das ferromagnetische Material weist eine relative Permeabilitätskonstante auf, die gegenüber Eins sehr groß ist.
- Druckgasschalter nach einem der Ansprüche 2 bis 5 mit dem weiteren Merkmal:das strommindernde Bauteil besteht aus Eisen oder Nickel oder Kobald oder einer Mischung davon.
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 (de) | 2000-08-30 |
| EP1032009A3 EP1032009A3 (de) | 2001-08-29 |
| EP1032009B1 EP1032009B1 (de) | 2006-08-02 |
Family
ID=7898611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19990122825 Revoked EP1032009B1 (de) | 1999-02-24 | 1999-11-17 | Druckgasschalter |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1032009B1 (de) |
| DE (2) | DE19907838A1 (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1906425A1 (de) * | 2006-09-29 | 2008-04-02 | Areva T&D Sa | Betätigung mittels eines zylindrisches Nocke von Kontakten einer Schaltkammer mit Doppelbewegung |
| 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 (de) | 2011-07-12 | 2013-01-16 | Alstom Technology Ltd | Hochspannungsunterbrechungsvorrichtung in einem Stromnetz |
| WO2013037726A1 (en) | 2011-09-12 | 2013-03-21 | Alstom Technology Ltd | Interrupting chamber for a circuit breaker |
Families Citing this family (1)
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH675175A5 (de) * | 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 |
-
1999
- 1999-02-24 DE DE1999107838 patent/DE19907838A1/de not_active Withdrawn
- 1999-11-17 EP EP19990122825 patent/EP1032009B1/de not_active Revoked
- 1999-11-17 DE DE59913734T patent/DE59913734D1/de not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1906425A1 (de) * | 2006-09-29 | 2008-04-02 | Areva T&D Sa | Betätigung mittels eines zylindrisches Nocke von Kontakten einer Schaltkammer mit Doppelbewegung |
| 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 (de) * | 2006-10-09 | 2008-04-16 | Areva T&D Sa | Betätigung durch Kontakte einer Zweigang-Schneidekammer über ein Isolierrohr |
| 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 (de) | 2011-07-12 | 2013-01-16 | Alstom Technology Ltd | Hochspannungsunterbrechungsvorrichtung in einem Stromnetz |
| WO2013037726A1 (en) | 2011-09-12 | 2013-03-21 | Alstom Technology Ltd | Interrupting chamber for a circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1032009B1 (de) | 2006-08-02 |
| EP1032009A3 (de) | 2001-08-29 |
| DE19907838A1 (de) | 2000-08-31 |
| DE59913734D1 (de) | 2006-09-14 |
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