EP1011121A1 - Druckgasschalter - Google Patents
Druckgasschalter Download PDFInfo
- Publication number
- EP1011121A1 EP1011121A1 EP99117903A EP99117903A EP1011121A1 EP 1011121 A1 EP1011121 A1 EP 1011121A1 EP 99117903 A EP99117903 A EP 99117903A EP 99117903 A EP99117903 A EP 99117903A EP 1011121 A1 EP1011121 A1 EP 1011121A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupling element
- switch
- nozzle
- compressed gas
- 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
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Classifications
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- 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
- H01H33/901—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 making use of the energy of the arc or an auxiliary arc
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- 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
Definitions
- the invention relates to a gas pressure switch according to the German patent DE 196 31 323 C1.
- the gas pressure switch has one Interruption point consisting of a first and a second contact piece is formed.
- the two contact pieces are with each other via a transmission device coupled. At least one of the contact pieces is with one Drive connected.
- the Contact pieces due to the transmission device each other opposite movements.
- the Transmission device on a lever on which two Rods are rotatably attached. With the first Contact piece is connected to an insulating material nozzle a free end facing away from the contact piece Coupling element is held.
- the coupling element is rotatable with one of the two rods of the transmission device connected.
- the coupling element is used to transmit power from the first contact piece to the rod.
- the coupling element is ring-shaped and made of metal. In order to the coupling element is a shield that the electromagnetic fields within the pressure gas switch changed.
- a similar gas pressure switch is from the European one Patent EP 696 040 B1 known.
- the insulating material nozzle carries at its free The end of a shield that coaxially surrounds it the racks are attached. This shielding is reduced the electric field in the dielectric and mechanically high loaded upper end of the insulating material nozzle. About the Isolierstoffdüse and thus over the shield Transfer power to the racks.
- FIG European patent application EP 313 813 A1 A forerunner of the European gas pressure switch Patent specification EP 696 040 B1 is from FIG European patent application EP 313 813 A1 known. There are the racks of the transmission device attached directly to the insulating material nozzle. On Coupling element or the like is not available. In the European patent application EP 313 813 A1 is however not explains how the racks are attached to the Insulating nozzle is to be executed so that the Switching forces occurring safely from the Racks are transferred to the insulating material nozzle.
- the object of the invention is to provide a gas pressure switch create that requires little manufacturing effort, and the forces occurring in switching operation safely transmits.
- EP 313 813 A1 consists of the Pressure gas switch according to the invention an additional Degree of freedom in that the coupling element is one of the Isolierstoffdüse is an independent component. This has the Advantage that the coupling element - completely independent of the Isolierstoffdüse - so designed and dimensioned may like this for a secure connection between the Rod, the coupling element and the insulating nozzle is required. Due to the independence of the Coupling elements from the insulating material nozzle open up Plenty of ways in which such safe power transmission is achievable.
- Gas switch is that through use the weight of the plastic coupling element the moving parts of the pressure gas switch is reduced.
- the reduction of the moving mass leads to a corresponding reduction in the required Drive energy, which has a positive effect on the costs and the Drive life.
- Gas pressure switch Another advantage of the invention Gas pressure switch is that the coupling element due to the use of plastic easier and therefore can be manufactured more cost-effectively. Elaborate Metal structures are not necessary.
- Coupling element made of polytetrafluoroethylene (PTFE) and / or fiber-reinforced plastic. These materials bring the Advantage with them that they are very good mechanical and have electrical properties, especially high mechanical strength and high electrical Insulation ability.
- PTFE polytetrafluoroethylene
- Coupling element and the insulating nozzle a projection and an assigned recess.
- the head start on that Coupling element or attached to the insulating nozzle.
- the recess in the insulating material nozzle is corresponding or the coupling element available.
- One or more can be used Projections or recesses may be present. The advantage such projections or recesses is in the simple feasibility of the same.
- a head start can be a pin-like, hook-shaped or protruding at an angle Act part of the coupling element or the insulating material nozzle.
- a recess can be a circular or undercut or otherwise opening in the Act coupling element or the Isolierstoffdüse. The projection and the recess are in pairs adapted and interact in such a way that a safe Power transmission between the coupling element and the Insulating nozzle is guaranteed.
- the coupling element positively connected to the insulating material nozzle.
- the advantage of such a form fit is that it’s a particularly easy way to a safe power transmission from the insulating material nozzle to the coupling element can be achieved.
- the surface forming the positive connection is preferably with the coupling element and the insulating material nozzle with each other are coupled, as large as possible. So that will advantageously the force to be transferred to a large one Area distributed so that the force per unit area is small becomes. This is equivalent to the fact that the material of the Coupling element and the insulating nozzle less stressed becomes.
- this Coupling element on a tongue that a groove in the Insulating nozzle is assigned.
- the tongue and the groove represent a particularly simple way of Realization of the projection and the recess.
- the advantage of the tongue and groove connection is that it does a large area without any major design effort is formed with which the coupling element and Place the insulating material nozzle against one another.
- the area of the Positive locking can therefore be carried out without any further special measures be made very large. This ensures that the power to be transmitted is safe and without a greater stress for the coupling element and the Isolierstoffdüse can be transferred.
- the spring and the groove is at least partially circular educated.
- This is a kind of Bayonet lock with which the coupling element and the insulating material nozzle can be connected to each other.
- Such a bayonet catch has the advantage that on the one hand the coupling element and the insulating material nozzle without connected a greater effort and - if required - can also be taken apart again can.
- the Tongue and groove connection of the bayonet lock one generates a particularly large area with which the coupling element and the insulating material nozzle fit against one another in a form-fitting manner.
- the tongue and the groove each form about a quarter circle. Preferably point the tongue and the groove two each other opposite quarter circles. This brings the Advantage with it that the area for the transfer of the Forces between the coupling element and the insulating material nozzle is further enlarged. It will also be simple on this Formed an approximately symmetrical bayonet lock, the main advantages with regard to Weight distribution and the resulting Has material stress on the moving components.
- the spring of Coupling element of the groove of the insulating nozzle can be assigned and can be connected to it by a rotary movement.
- the Bayonet lock is closed as follows: The Coupling element is so with its spring Insulated nozzle that the spring just in that area is arranged in which there is no groove located; so it is possible that after that the spring through a rotational movement of the coupling element in the groove of the Insulating nozzle can be introduced; this rotary motion the coupling element is continued until the spring of the coupling element completely in the groove of the Insulating nozzle located; so that are the coupling element and the insulating nozzle connected to each other.
- To the Disassembly of the interconnected components can be done in reverse order.
- the spring can also on the insulating nozzle and the groove can be present in the coupling element.
- this Coupling element an insert part preferably made of metal, that is coupled to the rod. This turns it into transmitting power from the bar to the metal Insert part passed on. This indicates a larger one mechanical strength as a component made of plastic. This has the advantage that the same can be transmitted This results in smaller dimensions of the insert and if necessary also result in the coupling element. It is also achieved by the insert that the Rod is stored in a metal part.
- a plate is preferably made of metal or plastic provided in a groove of the insulating nozzle is inserted, and screwed to the insert is. This represents a structurally particularly simple, however nevertheless very stable connection between the insert part and the insulating material nozzle. Depending on the selected material of the plate can then be used for a Secure fixation determines the required size of the plate become. If a metal plate is provided, it is sufficient to to provide a relatively small size of the plate so that this only negligible impact on the inside of the pressure gas switch existing electromagnetic Has fields. With a plate made of plastic, this has regardless of their size, none depending on the material shielding effect.
- Coupling element means for fixing the same to the Assigned insulating material nozzle.
- the fixation of the Coupling element is therefore not carried out by the coupling element itself, but through independent components. This has the advantage that the fixing of the coupling element on the Isolierstoffdüse independent of the coupling element itself can be designed.
- a half ring is preferably provided which fits into a groove the insulating nozzle is inserted, and the one with the Coupling element is screwed.
- the half ring exists for example from a plastic. This represents one structurally particularly simple, yet stable Connection of the coupling element and the insulating nozzle. Due to the use of plastic it has Construction no shielding effect.
- the coupling element is approximately annular educated. It will be largely coaxial Design of the gas pressure switch also in the Coupling element continued. Also has the ring-shaped Training of the coupling element advantages in terms of Weight distribution and thus the mechanical stress of the moving components of the pressure gas switch.
- the invention are means for protecting the coupling element intended. This ensures that when selecting the Material of the coupling element is not primarily For example, attention should be paid to heat resistance must, but instead, in particular, on the mechanical strength of the coupling element are taken into account can. Protection of the coupling element against excessive heat and other stresses, in particular due to hot Arc gases can then be generated by the mentioned protective means achieved.
- a ring is preferably made of Polytetrafluoroethylene (PTFE) provided with which the Coupling element is covered.
- PTFE Polytetrafluoroethylene
- the invention means are provided on the Coupling element are held, and the coupling element to back up. This ensures that the coupling element do not accidentally detach from the insulating material nozzle can.
- the functional reliability of the invention Compressed gas switch is increased.
- a screw for example a Plastic screw screwed into the coupling element, the forms a clamping connection with the insulating material nozzle.
- the clamp connection becomes the coupling element opposite the Insulated nozzle secured.
- the the clamp connection producing screw represents a particularly simple Possibility to secure the coupling element realize.
- the coupling element has a bore in which houses a bolt on which the rod is held. This has the advantage that the connection between the rod and the coupling element in particular simple type and with very little effort is solved constructively. To further improve the Power transmission between the bolt and the coupling element a corresponding socket can be inserted into the bore his.
- a gas pressure switch 10 is shown, the to interrupt large currents in High-voltage switchgear is provided.
- the gas pressure switch 10 is shown in FIG shown switched on position. With the shown Gas switch 10 is a Outdoor switch.
- the gas pressure switch 10 has a tubular insulator 11 made of porcelain, for example, and is filled with an insulating gas, for example SF 6 , in the interior formed by the insulator 11.
- the insulator 11 defines a central axis M, to which the compressed gas switch 10 is largely rotationally symmetrical.
- the gas pressure switch 10 has two electrically conductive Contact pieces 12, 13, which is an interruption point for form the current to be interrupted.
- the two Contact pieces 12, 13 represent erosion contacts that lead to this are provided when interrupting the current resulting arc.
- the first contact piece 12 is a so-called tulip contact, which on a first metal Contact body 14 attached and with this electrically connected is.
- the second contact piece 13 is concerned is a pin contact that is bathing a pot-shaped second metal contact body 15 attached and with this is electrically connected. In the illustrated, switched on position of the pressure gas switch 10 protrudes pin-shaped second contact piece 13 in the tulip-shaped first contact piece 12 and is electrical with this connected.
- the contact pieces 12, 13 are coaxial to the central axis M. arranged and in opposite directions slidable.
- one Transmission device provided that a bell crank 16 with two arms 17, 18 of different lengths.
- a rod 19 is rotatably held rotatable with the cup-shaped second contact body 15 and thus with the pin-shaped second contact piece 13 connected is.
- the bell crank 16 is pivotable about an axis 23.
- the coupling element 22 is on the pin-shaped second Contact piece 13 facing free end of a Isolierstoffdüse 24 attached. In the illustrated surrounds the switched-on position of the pressure gas switch 10 the insulating nozzle 24 the pin-shaped second Contact piece 13.
- the coupling element 22 is essentially ring-shaped formed and the insulating nozzle 24 is essentially tubular.
- the coupling element 22 is in one Plane arranged approximately transverse to the central axis M is aligned.
- the coupling element 22 and the Isolierstoffdüse 24 are coaxial to the central axis M arranged.
- the coupling element 22 and the insulating nozzle 24 are made of electrically non-conductive or insulating Material.
- the insulating material nozzle 24 on the first contact body 14 attached, which in turn - as already mentioned - with the first tulip-shaped contact piece 12 is firmly connected.
- the first contact body 14 is electrical in a first conductive power supply 25 out.
- the first Power supply 25 is at one of the two ends of the Insulator 11 led to the outside and accessible there. about the first power supply 25 are the first tulip-shaped Contact piece 12 and the first contact body 14 with one Connection of the pressure gas switch 10 electrically connected.
- the second contact body 15 is electrical in a second conductive power supply 26 out.
- the second Power supply 26 is at the other end of the insulator 11 led to the outside and accessible there.
- the second Power supply 26 is the second pin-shaped contact piece 13 and the second contact body 15 with the other Connection of the pressure gas switch 10 electrically connected.
- the current contact 27 provides one Nominal current contact, which is intended to the current of the switched-on gas switch 10 largely to lead.
- the first contact piece 12 has a drive 28 coupled and is from this in the direction of arrow P Slidable coaxially to the central axis M. Is moving starting from the position shown of the gas pressure switch 10, the first contact piece 12 in the Figure 1 down, this longitudinal movement over the first contact body 14, via the insulating nozzle 24, via the coupling element 22 and the rod 20 on the Transfer lever 16. As a result, the The bell crank 16 is pivoted about the axis 23. This Pivotal movement of the bell crank 16 has the consequence that the Rod 19 a longitudinal movement in Figure 1 upwards executes. This longitudinal movement is in turn by the Rod 19 on the second contact body 15 and from there on the second contact piece 13 transmitted. The second Contact piece 13 thus moves upwards in FIG. 1. In this way, the first and the second contact piece 12, 13 pulled apart in opposite directions so that the Gas switch 10 in its off position in which there is no longer any electrical connection between the first and the second contact piece 12, 13.
- a gas switch 30 is shown in FIGS. 2, 3a and 3b shown, the largely the gas switch 10 of Figure 1 corresponds. Similar components are therefore included marked with the same reference numbers.
- the pressure gas switch 30 of Figures 2, 3a and 3b In contrast to FIG. 1, the pressure gas switch 30 of Figures 2, 3a and 3b, however, not just one, but two transmission devices. So there are two Diverter lever 16 is present, which has a total of four rods 19, 20 with the second contact body 15 and the Isolierstoffdüse 24 are coupled.
- the two Transmission devices of the pressure gas switch 30 of Figures 2, 3a and 3b are - in contrast to Figure 1 - arranged off-center, so that the axes 23 of their Deflection lever 16 not the central axis M of the Cut the pressure gas switch 30.
- the gas pressure switch 30 in Figure 2 from a shown in another direction as the gas pressure switch 10th of Figure 1.
- the coupling element 22 is the Gas pressure switch 30 is annular and coaxial the central axis M.
- the inner diameter of the Coupling element 22 corresponds to the outer diameter of the Isolierstoffdüse 24.
- On the inner edge 31 of the coupling element 22 protrude two springs 32 inwards.
- the springs 32 are thus aligned transversely to the central axis M.
- the springs 32 have an inward facing Edge that runs in a circle.
- Each of the two feathers 32 extends over approximately the area of a quarter circle, over 90 degrees.
- the two springs 32 are approximately arranged symmetrically opposite each other.
- the insulating material nozzle 24 is shown in FIGS. 2 and 3b tubular and coaxial to the central axis M arranged.
- a circumferential groove 34 which is transverse to Center axis M is aligned.
- two roughly symmetrical opposite areas 35 is the groove 34 opened upwards.
- the areas 35 are approximately circular trained and each extend over about one Quarter circle. In any case, the open ones extend Areas 35 over an angular range that at least is slightly larger than the angular range over which the two springs 32 of the coupling element 22 extend.
- the springs 32 of the coupling element 22 are with respect to them Dimensioning on the grooves 34 of the insulating nozzle 24 customized.
- the springs 32 and the grooves 34 thus form one Art bayonet lock. Form when closed the springs 32 and the grooves 34 a positive Connection.
- the springs 32 of the Coupling element 22 in the open areas 35 of the Insulating material nozzle 24 are inserted. After that it can Coupling element 22 can be rotated about the central axis M.
- the insulating nozzle 24 introduced. After about one They are a quarter turn, i.e. after about 90 degrees Springs of the coupling element 22 essentially completely within the grooves 34 of the insulating nozzle 24 and thus outside the open areas 35. This is the Bayonet lock closed. To open the Bayonet catch are the previous steps in reverse order.
- the recesses 36 are within the Coupling element 22 in a to the central axis M approximately parallel direction aligned.
- the holes 37 run approximately in the plane of the annular coupling element 22 and cut the associated recesses 36 approximately right angle.
- two threaded holes 38 are present, which are approximately parallel to Center axis M are aligned and the holes 37 cut approximately at right angles.
- a bolt 39 is provided in each of the bores 37.
- the rod 20 protruding into the respective recess 36 has an opening 40 through which the bolt 39 is put through.
- the bolts 39 are each one Plastic screw 41 secured in the respective Threaded holes 38 are screwed.
- the coupling element 22 thus adjusts Power transmission element.
- the force from the groove 34 of the insulating nozzle 24 on the spring 32 of the Coupling element 22 transmitted.
- Due to the inclusion of the spring 32 of the coupling element 22 in the groove 34 of the insulating nozzle 24 and the resulting positive connection between the coupling element 22 and the insulating material nozzle 24 can be transmitted over a large force
- Contact surface of the insulating nozzle 24 on the Coupling element 22 are passed on.
- the contact area the two are about 90 degrees each extending springs 32 and the associated grooves 34 educated.
- Formation of the coupling element 22 may relate to this its design and dimensioning to the rod 20 to be coupled and the one to be connected Isolierstoffdüse 24 are adjusted.
- the Tongue and groove connection between the coupling element 22 and the Isolierstoffdüse 24 adapted to the force to be transmitted become.
- the coupling element 22 can also be due to its separate training made of a different material become like the insulating material nozzle. So that the coupling element 22nd due to a shielding effect not to one Change in electromagnetic fields within the Gas switch 30 can lead, the coupling element 22nd made of a plastic. In particular that is Coupling element 22 made of a fiber-reinforced plastic manufactured with particularly good mechanical properties owns.
- the Coupling element 22 on its second contact piece 13 facing end face for protection with a ring 42 is covered, the one against hot arc gases resistant material, especially made of Polytetrafluoroethylene (PTFE) is made.
- PTFE Polytetrafluoroethylene
- the insulating nozzle 24 is made of an insulating Plastic, especially polytetrafluoroethylene (PTFE) manufactured, the particularly good insulating and has heat-resistant properties.
- PTFE polytetrafluoroethylene
- FIGS. 4a, 4b, 5a, 5b, 6a, 6b show compressed gas switches 50, 70, 80, which largely correspond to the compressed gas switches 10, 30 of FIGS. 1, 2, 3a and 3b. Components of the same type are therefore identified with the same reference numbers.
- the pressure gas switches 50, 70, 80 of Figures 4a, 4b, 5a, 5b, 6a, 6b are like the pressure gas switch 30 of the figures 2, 3a, 3b, each with two transmission devices and thus provided with two rods 20.
- FIGS. 5b, 6b Die Top views of the coupling element, which are shown in FIGS. 5b, 6b are shown in FIGS. 4a, 5a, 6a approximately in the direction of arrow B.
- the pressure gas switch 50 a coupling element 51, which is annular and is arranged coaxially to the central axis M.
- the inner one The diameter of the coupling element 51 corresponds to the outer one Diameter of the coupling element 51 associated Isolierstoffdüse 52.
- On the inner edge 53 of the coupling element 51 a circumferential projection 54 protrudes inwards.
- the Projection 54 is thus aligned transversely to the central axis M. Furthermore, the projection 54 is flush with that Surface of the coupling element 51 arranged with the free end of the insulating material nozzle 52 corresponds.
- the insulating material nozzle 52 is tubular and arranged coaxially to the central axis M.
- the Insulating material nozzle 52 has a circumferential recess 55 provided at the free end of the insulating nozzle 52 is arranged, and that with regard to its dimensioning corresponds to the projection 54 of the coupling element 51.
- the Coupling element 51 can thus with its projection 54 in the Return 55 of the insulating material nozzle 52 are inserted.
- the coupling element 51 is made of plastic, in particular from polytetrafluoroethylene (PTFE) and / or fiber-reinforced plastic.
- PTFE polytetrafluoroethylene
- the coupling element 51 two are opposite one another arranged recesses 56 are provided, in each of which a metal insert 57 is added.
- the Formations and dimensions of the recesses 56 and the associated insert parts 57 are in such a way together adjusted that the insert parts 57 essentially can be inserted into the recesses 56 without play.
- insert parts 57 is in each case in connection with FIGS. 2, 3a, 3b already explained recess 36 and Hole 37 included.
- the bolt 39 is in the bore 37 on which the rod 20 with its opening 40th is attached.
- 3a, 3b 4a, 4b is the bolt 39 in the Insert part 57 stored.
- One is at least partially in the insulating material nozzle 52 circumferential groove 58 introduced.
- two partially annular metal plates 59 are provided, the thickness of which is adapted to the groove 58.
- Each of the plates 59 extends over the smallest possible Angular range.
- the plates 59 are with their inner edge 60 inserted into the groove 58.
- the two plates 59 are in that area of the Coupling element 51 arranged in which the two Insert parts 57 are. There are holes and holes in the plates threaded holes are contained in the insert parts 57, so that each of the insert parts 57 with the respectively associated one Plate 59 firmly connected by means of a metal screw 61 can be.
- the threaded bores 38 indicated in FIG. 4b are as already explained - to secure the bolts 39 intended.
- the pressure gas switch 70 has a coupling element 71, which as such with the Coupling element 51 of the pressure gas switch 50 of FIGS. 4a, 4b corresponds identically.
- the coupling element 71 is not connected to the provided metal plates 59, but with two semi-annular plates 72 made of plastic consist, in particular of polytetrafluoroethylene (PTFE) and / or made of fiber-reinforced plastic.
- PTFE polytetrafluoroethylene
- the plates 72 have a thickness that the groove 58 in the Isolierstoffdüse 52 is adjusted.
- the plates 72 are in this groove 58 inserted and each extend over almost 180 degrees.
- the metal insert parts 57 are with screwed the plates 72.
- the pressure gas switch 80 a coupling element 81 which, in contrast to the Coupling elements 51 and 71 of Figures 4a, 4b, 5a, 5b none Insert parts 57 has. Instead, it is im already explained in connection with Figures 2, 3a, 3b Recess 36 and bore 37 as described there, however opposite each other twice in the coupling element 81 immediately included. In the holes 37 is the Bolt 39 added to the rod 20 with their Opening 40 is plugged.
- the coupling element 81 is made of plastic, in particular from polytetrafluoroethylene (PTFE) and / or fiber-reinforced plastic.
- PTFE polytetrafluoroethylene
- the half rings 82 are over a plurality of Plastic screws 83 evenly over the entire circumference screwed to the coupling element 81.
- the power to be transmitted is switched off by the Insulating material nozzle 52 via the groove 58 onto the half rings 82 passed on and from there via the plastic screws 83 to the coupling element 81. From this the force is on the bolts 39 passed on to the rods 20. At the Switching on the power transmission takes place from the return 55 of the insulating nozzle 52 on the projection 54 of the Coupling element 81.
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Abstract
Description
- Figur 1
- zeigt eine schematische Schnittdarstellung eines ersten Ausführungsbeispiels eines erfindungsgemäßen Druckgasschalters;
- Figuren 2 und 3a, 3b
- zeigen eine schematische Schnittdarstellung einer Isolierstoffdüse und eines Koppelelements eines zweiten Ausführungsbeispiels eines erfindungsgemäßen Druckgasschalters sowie eine schematische Draufsicht auf die Isolierstoffdüse und das Koppelelement;
- Figuren 4a und 4b
- zeigen eine schematische Schnittdarstellung einer Isolierstoffdüse und eines Koppelelements eines dritten Ausführungsbeispiels eines erfindungsgemäßen Druckgasschalters sowie eine schematische Draufsicht auf das Koppelelement,
- Figuren 5a und 5b
- zeigen eine schematische Schnittdarstellung einer Isolierstoffdüse und eines Koppelelements eines vierten Ausführungsbeispiels eines erfindungsgemäßen Druckgasschalters sowie eine schematische Draufsicht auf das Koppelelement; und
- Figuren 6a und 6b
- zeigen eine schematische Schnittdarstellung einer Isolierstoffdüse und eines Koppelelements eines fünften Ausführungsbeispiels eines erfindungsgemäßen Druckgasschalters sowie eine schematische Draufsicht auf das Koppelelement.
Gleichartige Bauteile sind deshalb mit gleichen Bezugsziffern gekennzeichnet.
Claims (20)
- Druckgaschalter (10, 30, 50, 70, 80) mit folgenden Merkmalen:der Druckgasschalter (10, 30, 50, 70, 80) weist ein erstes und ein zweites Kontaktstück (12, 13) auf,die Kontaktstücke (12, 13) sind über eine Übertragungsvorrichtung miteinander gekoppelt,mit dem ersten Kontaktstück (12) ist eine Isolierstoffdüse (24, 52) verbunden,die Übertragungsvorrichtung weist eine Stange (20) auf,die Stange (20) ist über ein Koppelelement (22, 51, 71, 81) mit der Isolierstoffdüse (24, 52) verbunden,das Koppelelement (22, 51, 71, 81) besteht aus einem Kunststoff.
- Druckgasschalter (10, 30, 50, 70, 80) nach Anspruch 1, wobei das Koppelelement (22, 51, 71, 81) aus Polytetrafluorethylen (PTFE) und/oder aus faserverstärktem Kunststoff besteht.
- Druckgasschalter (10, 30, 50, 70, 80) nach einem der Ansprüche 1 oder 2, wobei das Koppelelement (22, 51, 71, 81) und die Isolierstoffdüse (24, 52) einen Vorsprung und eine zugeordnete Ausnehmung aufweisen.
- Druckgasschalter (10, 30, 50, 70, 80) nach einem der Ansprüche 1 bis 3, wobei das Koppelelement (22, 51, 71, 81) formschlüssig mit der Isolierstoffdüse (24, 52) verbunden ist.
- Druckgasschalter (10, 30) nach einem der Ansprüche 1 bis 4, wobei das Koppelelement (22) eine Feder (32) aufweist, die einer Nut (34) in der Isolierstoffdüse (24) zugeordnet ist.
- Druckgasschalter (10, 30) nach Anspruch 5, wobei die Feder (32) und die Nut (34) jeweils zumindest teilweise kreisförmig ausgebildet sind.
- Druckgasschalter (10, 30) nach Anspruch 6, wobei die Feder (32) und die Nut (34) jeweils etwa einen Viertelkreis, vorzugsweise zwei einander gegenüberliegende Viertelkreise aufweisen.
- Druckgasschalter (10, 30) nach einem der Ansprüche 5 bis 7, wobei die Feder (32) des Koppelelements (22) der Nut (34) der Isolierstoffdüse (24) zuordenbar und durch eine Drehbewegung mit dieser verbindbar ist.
- Druckgasschalter (50, 70) nach einem der Ansprüche 1 bis 4, wobei das Koppelelement (51, 71) ein Einlageteil (57) vorzugsweise aus Metall aufweist, das mit der Stange (20) gekoppelt ist.
- Druckgasschalter (50, 70) nach Anspruch 9, wobei Mittel zur Fixierung des Einlageteils (57) an der Isolierstoffdüse (52) vorgesehen sind.
- Druckgasschalter nach einem der Ansprüche 9 oder 10, wobei eine Platte (59, 72) aus Metall oder aus Kunststoff vorgesehen ist, die in eine Nut (58) der Isolierstoffdüse (52) eingesteckt ist, und die mit dem Einlageteil (57) verschraubt ist.
- Druckgasschalter (80) nach einem der Ansprüche 1 bis 4, wobei dem Koppelelement (81) Mittel zur Fixierung desselben an der Isolierstoffdüse (52) zugeordnet sind.
- Druckgasschalter nach Anspruch 12, wobei ein Halbring (82) vorzugsweise aus Kunststoff vorgesehen ist, der in eine Nut (58) der Isolierstoffdüse (52) eingesteckt ist, und der mit dem Koppelelement (81) verschraubt ist.
- Druckgasschalter (10, 30, 50, 70, 80) nach einem der Ansprüche 1 bis 13, wobei das Koppelelement (22, 51, 71, 81) etwa ringförmig ausgebildet ist.
- Druckgasschalter (10, 30, 50, 70, 80) nach einem der Ansprüche 1 bis 14, wobei Mittel zum Schutz des Koppelelements (22, 51, 71, 81) vorgesehen sind.
- Druckgasschalter (10, 30) nach Anspruch 15, wobei ein Ring (42) vorzugsweise aus Polytetrafluorethylen (PTFE) vorgesehen ist, mit dem das Koppelelement (22) abgedeckt ist.
- Druckgasschalter (10, 30, 50, 70, 80) nach einem der Ansprüche 1 bis 16, wobei Mittel vorgesehen sind, die an dem Koppelelement (22, 51, 71, 81) gehalten sind, und die das Koppelelement (22, 51, 71, 81) sichern.
- Druckgasschalter (10, 30) nach Anspruch 17, wobei eine Schraube, vorzugsweise eine Kunststoffschraube in das Koppelelement (22) eingeschraubt ist, die eine Klemmverbindung mit der Isolierstoffdüse (24) bildet.
- Druckgasschalter (10, 30, 50, 70, 80) nach einem der Ansprüche 1 bis 18, wobei das Koppelelement (22, 51, 71, 81) eine Bohrung (37) aufweist, in der ein Bolzen (39) untergebracht ist, an dem die Stange (20) gehalten ist.
- Druckgasschalter (10, 30) nach Anspruch 19, wobei eine Schraube, vorzugsweise eine Kunststoffschraube (41) in das Koppelelement (22) eingeschraubt ist, die den Bolzen (39) in der Bohrung (37) sichert.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19858793 | 1998-12-18 | ||
DE19858793A DE19858793A1 (de) | 1998-12-18 | 1998-12-18 | Druckgasschalter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1011121A1 true EP1011121A1 (de) | 2000-06-21 |
EP1011121B1 EP1011121B1 (de) | 2002-02-20 |
Family
ID=7891787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99117903A Expired - Lifetime EP1011121B1 (de) | 1998-12-18 | 1999-09-13 | Druckgasschalter |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1011121B1 (de) |
DE (2) | DE19858793A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10153049B4 (de) * | 2001-10-26 | 2007-03-08 | Wiest Ag | 3D-Koordinationssystem |
EP2278604A1 (de) * | 2009-07-21 | 2011-01-26 | ABB Technology AG | Hochspannungsschalter |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1686602B2 (de) † | 2005-02-01 | 2021-04-07 | ABB Power Grids Switzerland AG | Düsenbefestigung für elektrisches Schaltgerät |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19631323C1 (de) * | 1996-08-01 | 1997-10-16 | Aeg Energietechnik Gmbh | Druckgasschalter |
EP0809269A2 (de) * | 1996-05-24 | 1997-11-26 | Siemens Aktiengesellschaft | Hochspannungs-Leistungsschalter mit zwei antreibbaren Schaltkontaktstücken |
Family Cites Families (2)
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 |
-
1998
- 1998-12-18 DE DE19858793A patent/DE19858793A1/de not_active Withdrawn
-
1999
- 1999-09-13 EP EP99117903A patent/EP1011121B1/de not_active Expired - Lifetime
- 1999-09-13 DE DE59900874T patent/DE59900874D1/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0809269A2 (de) * | 1996-05-24 | 1997-11-26 | Siemens Aktiengesellschaft | Hochspannungs-Leistungsschalter mit zwei antreibbaren Schaltkontaktstücken |
DE19631323C1 (de) * | 1996-08-01 | 1997-10-16 | Aeg Energietechnik Gmbh | Druckgasschalter |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10153049B4 (de) * | 2001-10-26 | 2007-03-08 | Wiest Ag | 3D-Koordinationssystem |
EP2278604A1 (de) * | 2009-07-21 | 2011-01-26 | ABB Technology AG | Hochspannungsschalter |
Also Published As
Publication number | Publication date |
---|---|
DE19858793A1 (de) | 2000-06-21 |
EP1011121B1 (de) | 2002-02-20 |
DE59900874D1 (de) | 2002-03-28 |
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