EP1548780A1 - Löschkammer und Hochleistungsschalter mit starker Lichtbogenbeblasung - Google Patents
Löschkammer und Hochleistungsschalter mit starker Lichtbogenbeblasung Download PDFInfo
- Publication number
- EP1548780A1 EP1548780A1 EP03405922A EP03405922A EP1548780A1 EP 1548780 A1 EP1548780 A1 EP 1548780A1 EP 03405922 A EP03405922 A EP 03405922A EP 03405922 A EP03405922 A EP 03405922A EP 1548780 A1 EP1548780 A1 EP 1548780A1
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- EP
- European Patent Office
- Prior art keywords
- volume
- compression
- extinguishing chamber
- expansion
- pressure
- 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.)
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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
- H01H33/91—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 the arc-extinguishing fluid being air or gas
-
- 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
- H01H2033/907—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 using tandem pistons, e.g. several compression volumes being modified in conjunction or sequential
-
- 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
- H01H2033/908—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 using valves for regulating communication between, e.g. arc space, hot volume, compression volume, surrounding volume
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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
- H01H33/903—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 and assisting the operating mechanism
Definitions
- the invention relates to the field of high-power switch technology. It refers to a quenching chamber according to the preamble of Patent claim 1 and a corresponding high-power switch.
- Such a quenching chamber and a corresponding high-power switch are known for example from the published patent application DE 195 36 673 A1.
- This switch has at least one cylindrically formed quenching chamber on which with a fixed contact, with a movable Contact and provided with a deletion zone between the two contacts is.
- a shaft of the movable contact is fixed with a heating volume connected, which fixed contact side by one of at least one Heating channel interspersed insulating nozzle is completed.
- the extinguishing chamber has a first compression volume, which corresponds to the heating volume and a second compression volume is in operative connection. Between the first and second compression volumes are movable Auxiliary piston provided, which via a deflection device with the movable contact is connected.
- the auxiliary piston antiparallel to the direction of movement of the movable Contact piece moves so that the first compression volume first is compressed while the second compression volume clean Extinguishing gas sucks. Thereafter, the auxiliary piston is parallel to the Moving direction of the movable contact piece moves, so that the first compression volume with clean extinguishing gas from the second Compression volume is supplied. This will make a reinforced Blowing of the arc, especially with relatively clean extinguishing gas, reached.
- the high-performance switch described has the disadvantage that it is a Deflection device for achieving the relatively complicated Auxiliary piston movement is required.
- first and the second Compression volume separately arranged expansion volume is present, which is arranged such that at a Enlargement of the total volume of the first and the second Compression volume is reduced in volume and at a reduction the total volume of first and second compression volumes its volume increased.
- the expansion volume allows effective enlargement of the Beblasung of the arc available extinguishing gas, which is in the two compression volumes. Because of the two volumes of compression formed total volume does not have be constant, but may turn off during a turn-off in favor of the expansion volume. This can be beneficial Expansion volume with a reservoir volume (tank volume) or a Abströmkanal be connected, so that an enlargement of the Expansion volume during a turn-off is not significant Additional load for a movable contact piece driving Drive represents.
- the expansion volume and the second compression volume is arranged such that a Volume change of the second compression volume a opposite equal large volume change of the expansion volume causes.
- This can increase the expansion volume and the second Compression volume share the same space (same total volume), and a piston of a piston-cylinder arrangement enclosing the expansion volume may be the same as a piston of a second Compression volume including piston-cylinder arrangement.
- a simple construction of the quenching chamber is possible.
- the Extinguishing chamber may have a low volume.
- the first Compression volume with the second compression volume by a Inflow channel connected together.
- the Extinguishing chamber on an axis and the first compression volume is with the second compression volume through a parallel to the axis elongated inflow channel interconnected.
- This can a series arrangement of the two compression volumes with respect the axis can be realized, which is a slim design of the quenching chamber allows (low volume of the extinguishing chamber).
- that is from The volume required for the inflow channel is small if it is elongate is formed so that at given extinguishing chamber volume by Compression of compression volumes available for blowing Gas quantity can be large.
- a pressure regulating valve is advantageously arranged in the inflow channel for opening the inflow channel if a pressure p 2 prevails in the second compression volume which is greater than a pressure p 1 in the first compression volume by at least one presettable pressure difference ⁇ p ⁇ 0 and otherwise closes the inflow channel ,
- a pressure p 2 prevails in the second compression volume which is greater than a pressure p 1 in the first compression volume by at least one presettable pressure difference ⁇ p ⁇ 0 and otherwise closes the inflow channel ,
- two different pressures in the two compression volumes can be realized. It can be achieved by a two-stage and partially extended Beblasung the arc. It can also be achieved an improved mixing of clean and contaminated extinguishing gas.
- At least one of Contact pieces penetrated by a discharge channel, and that Expansion volume is connected to the discharge channel. That's it possible that extinguishing gas heated by the arc in the extinguishing zone passes through the outflow channel in the expansion volume and thus the Enlargement of the expansion volume during a switch-off process simplified.
- a drive support is achieved: The from a drive driving the movable contact piece energy to be expended can be reduced by that in the Expansion volume inflowing extinguishing gas, which in the Expansion volume against the piston of an expansion volume leg-end piston-cylinder arrangement presses.
- the piston of a second compression volume including piston-cylinder arrangement so does the piston one
- that is of the expansion volume niesstomme gas contaminated extinguishing gas, so that in further Switching operations Gas of greater cleanliness for arc blowing is available.
- An opening of the expansion volume to the discharge channel may also cause the formation of negative pressures in the expansion volume prevent it from being enlarged during a shutdown process. One such negative pressure would add to the load on the drive to lead.
- the quenching chamber has a reservoir volume (tank volume), and the expansion volume is connected to the reservoir volume.
- This allows clean extinguishing gas to be sucked into the expansion volume be and / or quenching gas, in particular contaminated quenching gas from the Expansion volume are discharged into the reservoir volume.
- a Opening the expansion volume to the reservoir volume can increase the formation prevent from suppressions in the expansion volume.
- the reservoir volume in an insulating quenching chamber housing contain.
- Valve provided for closing the connection between the Expansion volume and the discharge channel at a switch-on and to open the connection between the expansion volume and the Outflow channel at a switch-off.
- Valve can be sleeve-shaped (sleeve valve), advantageously so that it on a cylindrical, the outflow channel-containing outflow pipe slides.
- the valve may be configured to pass through Pressure differences is switchable, or that it depends on the Drive movement is switchable.
- the two said valves are exhibited.
- the piston is the second compression volume-containing piston-cylinder arrangement rigidly connected to the movable contact piece.
- This piston and the piston show the second Compression volume-containing piston-cylinder arrangement rectified and possibly also equal movements.
- the piston of the second compression volume including piston-cylinder assembly rigid with the movable Contact piece connected.
- the heating volume with the first Compression volume identical. This essentially becomes one Buffer switch realized. This has a very good switching ability.
- a reheating valve is arranged between the heating volume and the first compression volume for separating the first compression volume from the heating volume in the event that a pressure p H prevails in the heating volume that is greater than a pressure p 1 in the first compression volume , and for connecting the heating volume with the first compression volume, if in the heating volume, a pressure p H prevails, which is smaller than a pressure p 1 in the first compression volume.
- a self-blow switch is essentially realized. This advantageously has the above-mentioned pressure control valve.
- a self-blow switch is already switchable with low drive power, so it only needs a small drive.
- An inventive high-power switch includes a Inventive quenching chamber and has the corresponding advantages on.
- a high-power switch can be gas-insulated (arranged in a dust-filled grounded chamber) or as an outdoor switch be formed (with a shield on the quenching chamber housing). If the high-performance switch is gas-insulated, it may be switched on Löschhuntgeophuse be omitted, the reservoir volume of the Extinguishing chamber is then identical to a reservoir volume of the gas insulated high power switch.
- An inventive extinguishing chamber Of course, together with others Interruption units or switches, for example with a Vacuum switch, combined used in a high power switch become.
- Fig. 1 shows schematically a partial section through an inventive Extinguishing chamber, which is advantageously used in a buffer switch.
- the upper half marked O indicates the open state, the lower, marked with C half, the closed switching state.
- the quenching chamber is constructed essentially rotationally symmetrical and has an axis A.
- the quenching chamber contains an extinguishing gas, for example SF 6 or optionally also N 2 , advantageously under pressure, and is enclosed here by an electrically insulating quenching chamber housing 16, which contains a reservoir volume 17.
- the housing 16 is typically terminated at both ends by non-illustrated metallic terminal flanges. If the circuit breaker is used in a metal-enclosed gas-insulated high-voltage system, it may be possible to dispense with the housing 16; In this case, the metallic encapsulation of the high-voltage system could limit the quenching chamber. A generally existing rated current path is not shown in favor of a better vividness.
- the quenching chamber has an electrically conductive first, fixed Contact 1 and an electrically conductive movable contact 2 on.
- the contact 1 is also designed to be movable.
- the moving contact 2 has a cylindrically shaped metallic shank, which is in extending the fixed contact 1 opposite direction and forms a discharge pipe 12, which inside a cylindrically shaped Outflow channel 13 includes.
- the movable contact 2 does at one Switching movement a movement along the axis A. He is driven by a non-illustrated drive.
- the first Compression volume 7 By the drive, a first compression volume 7, which in the shown case equal to a heating volume 5, reduced.
- the first Compression volume 7 has an annular cylinder bottom B1, Cylinder walls Z1 and an annular piston K1.
- the latter will formed in the illustrated embodiment by the insulating nozzle 11 a. in the In general, an embodiment of the insulating nozzle 1 1 a and piston K1 as separate, preferably contiguous parts preferred.
- a second piston-cylinder arrangement consisting of the second, annular piston K2, a second, annular Cylinder bottom B2 and cylinder walls Z2, includes a second Compression volume 8.
- a switch-off is the second Reduced compression volume.
- About an inflow channel 9 are the first and the second compression volume 1,2 connected together.
- Extinguishing gas resulting pressure is reduced by the heating channel 6 and serves in this way the blowing of the arc 4, which thereby is deleted.
- the available for arc quenching Gas quantity is thus determined by the amount of gas, that of the two Compression volumes 7.8 is provided together.
- the two compression volumes 7, 8 are relative to the axis A. arranged one behind the other, creating a slim design of the Extinguishing chamber is reached.
- the length of a quenching chamber is in general provided by a maximum for the quenching chamber Tension is given, which rests between the contact pieces.
- a small extinguishing chamber diameter is a small extinguishing chamber diameter, as he did by the arrangement of the two Compression volume 7.8 is reached, desirable.
- the second piston K2 is also a third volume, which is referred to as expansion volume 10, changed.
- the Expansion volume 10 is in a third piston-cylinder arrangement arranged, which is formed by a third piston K3, which here is identical to the second piston K2, and a third cylinder bottom B3, which is formed essentially by the cylinder bottom B1, and third cylinder walls Z3, which are substantially identical to the Cylinder walls Z2 are.
- a volume change of the second Compression volume 8 has an opposite volume change of Expansion volume 10 result, which in the case shown in the Amount is the same.
- the expansion volume 10 shares with the second compression volume 8 substantially the same physical Room.
- the expansion volume 10 by means a connection opening 14 to the discharge channel 13 out. she will for example, through an opening or multiple openings in the Outflow formed. During a shutdown process can be due to the Connection opening 14 Gas, in particular contaminated gas from the Outflow channel 13 flow into the expansion volume 10. It will not only ensures that in the expansion volume 10 no negative pressure arises, which would additionally burden the drive, but it can even one Drive support can be achieved by the out of the extinguishing zone 3 abund in the expansion volume 10 incoming heated gas.
- connection opening 14th Gas is sucked out of the extinguishing zone 3, whereby polluted gas from the extinguishing zone 3 is sucked off and more gas for blowing the Arc 4 can flow through the heating channel 6 in the extinguishing zone.
- the outflow channel 13 in the outflow pipe 12 openings to, reservoir volume 17 provided.
- These can be present at the connection opening 14th be made smaller or may be omitted altogether, whereby an improved drive support can be achieved.
- Outflow opening 15 is provided which the expansion volume 10 with the Reservoir volume 17 connects and which channel-shaped as an outlet channel 15 is formed.
- the inflow channel 9 crossing and the outlet channel 15 forming individual channels provided.
- the expansion volume 10 serves as a Exhaust volume and the discharge opening 15 as an exhaust.
- the discharge opening 15 may additionally or alternatively to the Connection opening 14 may be provided.
- the gas streams are in and out of the expansion volume 10 adjustable, so for example more or less Drive support is achieved by the gas flow or a reinforced Discharge of contaminated gas in the reservoir volume 17th
- the contact piece 2 moves as well as the three pistons K1, K2, K3 so that the compression volume increases 7.8 and the expansion volume 10 is reduced.
- a Inlet valve 22 clean extinguishing gas in the compression volumes 7.8 be sucked in, so clean for a later turn-off Gas is present for the arc blowing.
- This valve 22 is how also the others in Figs. 1.2 valves shown schematically represented by openings covered by a valve disc can be, with most still one the stroke of the valve disc limiting stop is shown. From the expansion volume 10 is the contaminated gas through the outlet channel 15 in the reservoir volume 17 and / or through the connection opening 14 in the outflow 13th pushed out.
- the discharge opening 15 and the Connection opening 14 dimensioned so that the majority of the from the expansion volume 10 expelled gas in the Reservoir volume 17 passes.
- the inlet valve 22 is not in the vicinity of the discharge opening 15th arranged, as shown in Fig. 1. This will be an intake avoided by contaminated gas through the inlet valve 22.
- Fig. 1 the main gas flows are indicated by dashed lines indicated. Above, in open state O, for turning on, below, in closed state C, for switching off.
- an optional pressure control valve 20 is provided, which is arranged in the inflow channel 9. Without the pressure valve 20, the inflow channel 9 is constantly open as a connection of the two compression volumes 7 and 8.
- the pressure regulating valve 20 opens the inflow channel 9 only if a pressure p 2 prevailing in the second compression volume 8 is greater by at least one presettable differential pressure ⁇ p ⁇ 0 than a pressure p 1 prevailing in the first compression volume 7 (where p 1 equals p H , is the pressure in the heating volume 5, which is equal to the first compression volume 7 in the buffer switch shown in Fig.1).
- a spring is shown between the valve disc and the stop of the pressure control valve 20 shown schematically, which endeavors to close the valve 20.
- Fig. 2 is a further advantageous embodiment of the invention shown. It is an extinguishing chamber for a self-blowing switch. These Extinguishing chamber largely corresponds to that shown in Fig. 1 Extinguishing chamber and is described starting from it. Also the Representations of the extinguishing chambers in Figs. 1 and 2 correspond to each other.
- the quenching chamber in Fig. 2 has a remindingil 21.
- the reminditesventil 21 separates when it is closed, the first compression volume 7 of the reminditesvolumen 5. It is designed so that it opens when the pressure pi in the first compression volume 7 is greater than the pressure p H in the heating volume 5. As a result, the queuing of greater pressures, such as those resulting from the ignition of the arc 4, on the piston K1 is avoided. And the quenching chamber can be operated with a smaller drive, so with less drive energy.
- a sleeve valve 18 formed valve 18 and at the discharge opening 15th an exhaust valve 19 is provided.
- These valves are single or advantageous can be used together.
- the respective valve 18, 19 can also be used if only one of the two openings 14.1 5 are provided. That or the Valves 18, 19 are also advantageous with a buffer switch (see FIG. 1) used.
- the valve 18 opens during a shutdown the connection between discharge channel 13 and expansion volume 10.
- the Drive through the resulting gas flow contaminated gas be supported against the piston K3.
- a switch-on process closes the valve 18 this connection, so that in the Expansion volume 10 available contaminated extinguishing gas during the Reduction of the expansion volume 10 by the movement of the piston K3 not in the outflow channel 13, but only in the reservoir volume 17th is ejected. Accordingly passes through the discharge channel 13 less or no contaminated gas into the quenching zone 3, so that improved switching properties be achieved.
- the valve 18 is designed as a sleeve valve 18, which in consists essentially of a sleeve 18 which is substantially tubular is formed and is slidably mounted on the outlet pipe 12.
- the sleeve 18 is located on the piston K3 or a non-illustrated Stop and closes the connection opening 14th Only during a turn-off operation, the connection opening 14 released because the sleeve 18 stops up due to its inertia, while the discharge pipe 12 moves down.
- sleeve 18 At the end of Ausschaltzi then moves down the sleeve 18 (due to the Gravity) and closes the connection opening 14.
- the sleeve can be realized for example by a spring which endeavors to move the sleeve into the position in which the connection opening 14th closed is.
- Sleeve valves are also available in other switches and / or Can be used where it applies, one or more openings in a cylindrical part of the switch to open and close.
- the Sleeve can, as shown, outside on the cylindrical part (like for example, on the outflow pipe 12) or also be arranged therein.
- a sleeve valve is not on circular cross sections limited, but also usable, if the part of the switch to which the has closing openings, an oval or square cross-section or has another substantially prismatic shape.
- the valve 18 may also be designed as a rattle valve.
- the outlet valve 19 serves to the outflow opening 15 during a Close shutdown and during a power up to to open. It can work advantageously stroke- or pressure-dependent, so that a optimal exhaust pressure can be adjusted. It is also possible that Exhaust valve 19, similar to the valve 18, as a sleeve form.
- a pressure control valve 20th provided, as in Fig. 1.
- the use of such a valve 20 is also possible in a Doubleblasschalter.
- a particularly simple quenching chamber results when there is no Connection opening 14 and thus also no valve 18, and although is still dispensed with an outlet valve 19, so that the discharge opening 15 is always open.
- the piston K2, K3 then does not act as a Differential piston, and the Antrieber does not support.
- the illustrated extinguishing chambers include a first piston K1 a first piston-cylinder arrangement, which is the first compression volume 7, and a second piston K2 of a second piston-and-cylinder arrangement, which includes the second compression volume 8.
- the two compression volumes 7,8 are arranged and connected to each other, that is a change of one of the two Compression volumes 7.8 an equal change of the Compression volume causes 7.8 total volume formed. This can, As shown, can be achieved without an opposite movement of the Both pistons K1, K2 would be necessary.
- the pistons K1, K2, K3 move in the embodiments discussed above in parallel and with the same Speed and only in one direction. They move continuously during a switching process. It is also possible, others Provide movements that one or more of these properties do not have, in particular movements, with various types Speeds for different pistons, for example, generated by means Geared, translations or scenes. Also opposing movements of pistons, in particular of the pistons K1 and K2 are possible.
- the inner Cylinder wall of the substantially hollow cylindrical inflow channel 9 in essentially formed by the outer wall of the hollow cylinder Z2. It is also possible to make the extinguishing chamber such that the inner Cylinder wall of the inflow channel 9 is formed by the outflow pipe 12 and the outer cylinder wall of the inflow channel 9 through the outer wall of the hollow cylinder Z2.
- the discharge opening 15 could then be as simple Opening in the outer wall of the hollow cylinder Z2 be formed instead as a channel.
- Such an embodiment is advantageous, for example if no connection opening 14 is provided.
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- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
- ein erstes Kontaktstück und ein zweites Kontaktstück, von welchen mindestens eines ein bewegliches Kontaktstück ist, und welche mittels eines Antriebs relativ zueinander beweglich sind,
- eine zwischen den beiden Kontaktstücken angeordnete Löschzone, in welcher bei einem Ausschaltvorgang ein Lichtbogen zwischen den beiden Kontaktstücken ausbildbar ist, und
- ein Heizvolumen zur Aufnahme von durch den Lichtbogen erhitztem Löschgas, mittels welchem der Lichtbogen beblasbar ist, wobei ein erstes Kompressionsvolumen vorhanden ist, welches derart angeordnet ist, dass es bei einem Ausschaltvorgang verkleinert wird, so dass Löschgas aus dem ersten Kompressionsvolumen in die Löschzone geleitet wird, und
- ein zweites Kompressionsvolumen.
- Fig. 1
- eine Schnittfläche durch einen erfindungsgemässen Hochleistungsschalter als Pufferschalter, oben in geöffnetem, unten in geschlossenem Zustand;
- Fig. 2
- eine Schnittfläche durch einen erfindungsgemässen Hochleistungsschalter als Selbstblasschalter, oben in geöffnetem, unten in geschlossenem Zustand;
- 1
- erstes Kontaktstück (feststehendes Kontaktstück)
- 2
- zweites Kontaktstück (bewegliches Kontaktstück)
- 3
- Löschzone
- 4
- Lichtbogen
- 5
- Heizvolumen
- 6
- Heizkanal
- 7
- erstes Kompressionsvolumen
- 8
- zweites Kompressionsvolumen
- 9
- Zuströmkanal
- 10
- Expansionsvolumen
- 11a
- Düse, Isolierdüse
- 11b
- Düse, Hilfsdüse
- 12
- Abströmrohr
- 13
- Abströmkanal
- 14
- Verbindungsöffnung (zwischen Expansionsvolumen und Abströmkanal)
- 15
- Abströmöffnung, Auslasskanal (zwischen Expansionsvolumen und Reservoirvolumen)
- 16
- Löschkammergehäuse, Isoliergehäuse
- 17
- Reservoirvolumen, Tankvolumen
- 18
- Ventil, Hülsenventil
- 19
- Ventil, Auslassventil
- 20
- Ventil, Druckregelventil
- 21
- Ventil, Rückheizventil, Klapperventil
- 22
- Ventil, Einlassventil
- 23
- Wirkungslinie
- A
- Achse der Löschkammer
- B1
- Zylinderboden der ersten Kolben-Zylinder-Anordnung
- B2
- Zylinderboden der zweiten Kolben-Zylinder-Anordnung
- B3
- Zylinderboden der dritten Kolben-Zylinder-Anordnung
- C
- geschlossen (closed)
- K1
- Kolben der ersten Kolben-Zylinder-Anordnung
- K2
- Kolben der zweiten Kolben-Zylinder-Anordnung
- K3
- Kolben der dritten Kolben-Zylinder-Anordnung
- O
- geöffnet (open)
- P1
- Druck im ersten Kompressionsvolumen
- P2
- Druck im zweiten Kompressionsvolumen
- PH
- Druck im Heizvolumen
- Δp
- Differenzdruck p2 - p1
- Z1
- Zylinderwand der ersten Kolben-Zylinder-Anordnung
- Z2
- Zylinderwand der zweiten Kolben-Zylinder-Anordnung
- Z3
- Zylinderwand der dritten Kolben-Zylinder-Anordnung
Claims (12)
- Löschkammer für einen Hochleistungsschalter, gefüllt mit einem Löschgas, aufweisendein erstes Kontaktstück (1) und ein zweites Kontaktstück (2), von welchen mindestens eines ein bewegliches Kontaktstück (2) ist, und welche mittels eines Antriebs relativ zueinander beweglich sind,eine zwischen den beiden Kontaktstücken (1,2) angeordnete Löschzone (3), in welcher bei einem Ausschaltvorgang ein Lichtbogen (4) zwischen den beiden Kontaktstücken (1,2) ausbildbar ist,ein Heizvolumen (5) zur Aufnahme von durch den Lichtbogen (4) erhitztem Löschgas, mittels welchem der Lichtbogen (4) beblasbar ist, wobei ein erstes Kompressionsvolumen (7) vorhanden ist, welches derart angeordnet ist, dass es bei einem Ausschaltvorgang verkleinert wird, so dass Löschgas aus dem ersten Kompressionsvolumen (7) in die Löschzone (3) geleitet wird, undein zweites Kompressionsvolumen (8),
ein von dem ersten (7) und dem zweiten (8) Kompressionsvolumen getrennt angeordnetes Expansionsvolumen (10) vorhanden ist, welches derart angeordnet ist, dass sich bei einer Vergrösserung des Gesamtvolumens von erstem (7) und dem zweitem (8) Kompressionsvolumen sein Volumen verkleinert und bei einer Verkleinerung des Gesamtvolumens von erstem (7) und dem zweitem (8) Kompressionsvolumen sein Volumen vergrössert. - Löschkammer gemäss Anspruch 1, dadurch gekennzeichnet, dass das Expansionsvolumen (10) und das zweite Kompressionsvolumen (8) derart angeordnet sind, dass eine Volumenänderung des zweiten Kompressionsvolumens (8) eine entgegengesetzt gleich grosse Volumenänderung des Expansionsvolumens (10) bewirkt.
- Löschkammer gemäss Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass die Löschkammer eine Achse (A) aufweist, und dass das erste (7) und das zweite (8) Kompressionsvolumen über einen parallel zu der Achse (A) länglich erstreckten Zuströmkanal (9) miteinander verbunden sind.
- Löschkammer gemäss Anspruch 3, dadurch gekennzeichnet, dass in dem Zuströmkanal (9) ein Druckregelventil (20) angeordnet ist zum Öffnen des Zuströmkanals (9), wenn im zweiten Kompressionsvolumen (8) ein Druck p2 herrscht, der um mindestens eine vorgebbare Druckdifferenz Δp ≥ 0 grösser ist als ein Druck pi in dem ersten Kompressionsvolumen (7) und zum Verschliessen des Zuströmkanals (9) anderenfalls.
- Löschkammer gemäss einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass mindestens eines der Kontaktstücke (1,2) von einem Abströmkanal (13) durchsetzt ist, und dass das Expansionsvolumen (10) mit dem Abströmkanal (13) verbunden ist.
- Löschkammer gemäss einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Löschkammer ein Reservoirvolumen (16) aufweist, und dass das Expansionsvolumen (10) mit dem Reservoirvolumen (17) verbunden ist.
- Löschkammer gemäss Anspruch 5 und Anspruch 6, dadurch gekennzeichnet, dass ein Ventil (18) vorgesehen ist zum Verschliessen der Verbindung (14) zwischen dem Expansionsvolumen (10) und dem Abströmkanal (13) bei einem Einschaltvorgang und zum Öffnen der Verbindung (14) zwischen dem Expansionsvolumen (10) und dem Abströmkanal (13) bei einem Ausschaltvorgang.
- Löschkammer gemäss Anspruch 5 und Anspruch 6 oder gemäss Anspruch 7, dadurch gekennzeichnet, dass ein Ventil (19) vorgesehen ist zum Verschliessen der Verbindung (14) zwischen dem Expansionsvolumen (10) und dem Reservoirvolumen (17) bei einem Ausschaltvorgang und zum Öffnen der Verbindung (14) zwischen dem Expansionsvolumen (10) und dem Reservoirvolumen (17) bei einem Einschaltvorgang.
- Löschkammer gemäss einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass ein zweiter Kolben (K1) einer zweiten Kolben-Zylinder-Anordnung, welche das zweite Kompressionsvolumen (8) beinhaltet, starr mit dem beweglichen Kontaktstück (2) verbunden ist.
- Löschkammer gemäss einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass das Heizvolumen (5) mit dem ersten Kompressionsvolumen (8) identisch ist.
- Löschkammer gemäss einem der Ansprüche 1-9, dadurch gekennzeichnet, dass zwischen dem Heizvolumen (5) und dem ersten Kompressionsvolumen (7) ein Rückheizventil (21) angeordnet ist zum Separieren des ersten Kompressionsvolumens (7) von dem Heizvolumen (5) in dem Fall, dass in dem Heizvolumen (5) ein Druck pH herrscht, der grösser ist als ein Druck p1 in dem ersten Kompressionsvolumen (7), und zum Verbinden des Heizvolumens (5) mit dem ersten Kompressionsvolumen (7), falls in dem Heizvolumen (5) ein Druck pH herrscht, der kleiner ist als ein Druck pi in dem ersten Kompressionsvolumen (7).
- Hochleistungsschalter, dadurch gekennzeichnet, dass er eine Löschkammer gemäss einem der vorangegangenen Ansprüche beinhaltet.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03405922A EP1548780B1 (de) | 2003-12-22 | 2003-12-22 | Löschkammer und Hochleistungsschalter mit starker Lichtbogenbeblasung |
AT03405922T ATE388479T1 (de) | 2003-12-22 | 2003-12-22 | Löschkammer und hochleistungsschalter mit starker lichtbogenbeblasung |
DE50309339T DE50309339D1 (de) | 2003-12-22 | 2003-12-22 | Löschkammer und Hochleistungsschalter mit starker Lichtbogenbeblasung |
PCT/CH2004/000740 WO2005062330A1 (de) | 2003-12-22 | 2004-12-16 | Löschkammer und hochleistungsschalter mit starker lichtbobenbeblasung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03405922A EP1548780B1 (de) | 2003-12-22 | 2003-12-22 | Löschkammer und Hochleistungsschalter mit starker Lichtbogenbeblasung |
Publications (2)
Publication Number | Publication Date |
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EP1548780A1 true EP1548780A1 (de) | 2005-06-29 |
EP1548780B1 EP1548780B1 (de) | 2008-03-05 |
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EP03405922A Expired - Lifetime EP1548780B1 (de) | 2003-12-22 | 2003-12-22 | Löschkammer und Hochleistungsschalter mit starker Lichtbogenbeblasung |
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Country | Link |
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EP (1) | EP1548780B1 (de) |
AT (1) | ATE388479T1 (de) |
DE (1) | DE50309339D1 (de) |
WO (1) | WO2005062330A1 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2892851A1 (fr) * | 2005-11-03 | 2007-05-04 | Areva T & D Sa | Chambre de coupure de courant a double chambre de compression |
WO2011141321A1 (de) * | 2010-05-12 | 2011-11-17 | Siemens Aktiengesellschaft | Druckgas-leistungsschalter |
EP2402970A1 (de) * | 2010-07-01 | 2012-01-04 | Alstom Grid SAS | Unterbrechungskammer eines Schutzschalters für Hoch- und Mittelspannung mit reduzierter Bedienungsenergie und kleineren Abmessungen |
WO2020011695A1 (de) * | 2018-07-12 | 2020-01-16 | Siemens Aktiengesellschaft | Gasisolierter schalter |
WO2022117788A1 (en) * | 2020-12-04 | 2022-06-09 | Hitachi Energy Switzerland Ag | Electrical switching device |
EP4125108A1 (de) * | 2021-07-26 | 2023-02-01 | Hitachi Energy Switzerland AG | Gasisolierter hoch- oder mittelspannungsleistungsschalter |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2249364A1 (de) | 2009-05-07 | 2010-11-10 | ABB Research Ltd. | Verfahren zur Erzeugung von mechanisch komprimiertem Löschgas in einem gasisolierten Hochspannungs-Leistungsschalter und Vorrichtungen zur Durchführung des Verfahrens |
CN109935495B (zh) * | 2018-11-09 | 2024-04-30 | 许继(厦门)智能电力设备股份有限公司 | 一种灭弧室绝缘辅助结构 |
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US4219711A (en) * | 1976-10-12 | 1980-08-26 | I-T-E Imperial Corporation | Axial blast puffer interrupter with multiple puffer chambers |
DE3240774A1 (de) * | 1982-11-02 | 1983-05-26 | Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka | Hochspannungsschaltkammer |
DE29620442U1 (de) * | 1996-11-18 | 1997-01-23 | Siemens AG, 80333 München | Hochspannungsdruckgasschalter |
-
2003
- 2003-12-22 EP EP03405922A patent/EP1548780B1/de not_active Expired - Lifetime
- 2003-12-22 DE DE50309339T patent/DE50309339D1/de not_active Expired - Fee Related
- 2003-12-22 AT AT03405922T patent/ATE388479T1/de not_active IP Right Cessation
-
2004
- 2004-12-16 WO PCT/CH2004/000740 patent/WO2005062330A1/de active Application Filing
Patent Citations (3)
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US4219711A (en) * | 1976-10-12 | 1980-08-26 | I-T-E Imperial Corporation | Axial blast puffer interrupter with multiple puffer chambers |
DE3240774A1 (de) * | 1982-11-02 | 1983-05-26 | Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka | Hochspannungsschaltkammer |
DE29620442U1 (de) * | 1996-11-18 | 1997-01-23 | Siemens AG, 80333 München | Hochspannungsdruckgasschalter |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101332724B1 (ko) * | 2005-11-03 | 2013-11-25 | 알스톰 그리드 에스아에스 | 이중의 압축 챔버를 구비한 전류 차단기 장치 |
WO2007051778A1 (fr) * | 2005-11-03 | 2007-05-10 | Areva T & D Sa | Chambre de coupure de courant a double chambre de compression |
CN101300654B (zh) * | 2005-11-03 | 2011-06-08 | 阿雷瓦T&D股份有限公司 | 具有两个压缩腔室的中断腔室 |
US7964816B2 (en) | 2005-11-03 | 2011-06-21 | Areva T&T SA | Interrupting chamber having two compression chambers |
FR2892851A1 (fr) * | 2005-11-03 | 2007-05-04 | Areva T & D Sa | Chambre de coupure de courant a double chambre de compression |
US9029726B2 (en) | 2010-05-12 | 2015-05-12 | Siemens Aktiengesellschaft | Gas blast circuit breaker |
EP2569795B1 (de) | 2010-05-12 | 2015-03-18 | Siemens Aktiengesellschaft | Druckgas-leistungsschalter |
WO2011141321A1 (de) * | 2010-05-12 | 2011-11-17 | Siemens Aktiengesellschaft | Druckgas-leistungsschalter |
RU2562963C2 (ru) * | 2010-05-12 | 2015-09-10 | Сименс Акциенгезелльшафт | Газонапорный выключатель нагрузки |
FR2962253A1 (fr) * | 2010-07-01 | 2012-01-06 | Areva T & D Sas | Chambre de coupure pour disjoncteur a moyenne ou haute tension a energie de manœuvre et dimensions reduites |
EP2402970A1 (de) * | 2010-07-01 | 2012-01-04 | Alstom Grid SAS | Unterbrechungskammer eines Schutzschalters für Hoch- und Mittelspannung mit reduzierter Bedienungsenergie und kleineren Abmessungen |
WO2020011695A1 (de) * | 2018-07-12 | 2020-01-16 | Siemens Aktiengesellschaft | Gasisolierter schalter |
US11676785B2 (en) | 2018-07-12 | 2023-06-13 | Siemens Energy Global GmbH & Co. KG | Gas-insulated switch |
WO2022117788A1 (en) * | 2020-12-04 | 2022-06-09 | Hitachi Energy Switzerland Ag | Electrical switching device |
EP4125108A1 (de) * | 2021-07-26 | 2023-02-01 | Hitachi Energy Switzerland AG | Gasisolierter hoch- oder mittelspannungsleistungsschalter |
Also Published As
Publication number | Publication date |
---|---|
WO2005062330A1 (de) | 2005-07-07 |
DE50309339D1 (de) | 2008-04-17 |
EP1548780B1 (de) | 2008-03-05 |
ATE388479T1 (de) | 2008-03-15 |
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