EP0734580B1 - Hochspannungs-leistungsschalter mit einer feldelektrode - Google Patents
Hochspannungs-leistungsschalter mit einer feldelektrode Download PDFInfo
- Publication number
- EP0734580B1 EP0734580B1 EP95902769A EP95902769A EP0734580B1 EP 0734580 B1 EP0734580 B1 EP 0734580B1 EP 95902769 A EP95902769 A EP 95902769A EP 95902769 A EP95902769 A EP 95902769A EP 0734580 B1 EP0734580 B1 EP 0734580B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- field electrode
- contact piece
- compression cylinder
- compression
- state
- 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.)
- Expired - Lifetime
Links
- 230000006835 compression Effects 0.000 claims abstract description 51
- 238000007906 compression Methods 0.000 claims abstract description 51
- 238000000034 method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 description 11
- 230000005684 electric field Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- H01H33/02—Details
- H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
- H01H33/245—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring using movable field electrodes
-
- 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
Definitions
- the invention relates to a high-voltage circuit breaker with a first and a second contact piece, that limit a separation distance when switched off, a compression piston surrounding the first contact piece and one surrounding the second contact piece in the on state drivable compression cylinder and with one that second contact piece in the off state surrounding and compared to this axially movable first field electrode, wherein the first field electrode is separated from the compression cylinder and is axially movable relative to it, the compression cylinder in the off state to the second Contact piece has a distance, and the first Field electrode axially in the direction of the compression cylinder is spring-loaded and a stop is provided which the Movement of the first field electrode towards the isolating path is limited.
- a high-voltage circuit breaker of the type mentioned Art is known for example from DE-OS 21 40 284.
- a field electrode in the compression cylinder embedded Since this is in the off state the separating section protrudes through this field electrode the separation path is subjected to a high dielectric load.
- Another high voltage circuit breaker is for example known from DE-OS 42 17 232. With this circuit breaker is a first field electrode through the bottom of the movable Compression cylinder formed. In the off position the compression cylinder bridges the separation distance, so that the bottom of the Compression cylinder in this position is one of the contact pieces coaxially surrounds while the fixed compression piston surrounds the other contact piece.
- the invention is therefore based on the object of a high-voltage circuit breaker of the type mentioned at the beginning create, on the one hand, field electrodes for comparison of the electrical field around the area of the isolating section are provided and on the other hand the isolating section in the switched-off state the highest possible dielectric strength having.
- the object is achieved in that the compression piston is designed as a second field electrode and that the compression piston when switching off in the direction of the second contact piece is drivable.
- the first field electrode can then move axially moved to make room for the compression cylinder do.
- the spring load provides the drive for the field electrode and thus the field electrode runs during the switch-off process, when the compression cylinder is pulled back until it hits the stop that stops the movement the field electrode is limited and the end position of the Defines field electrode.
- the compression cylinder When switched on, the compression cylinder is advanced and he pushes the first field electrode against the spring force back until the end position of the compression cylinder is reached.
- the compression piston surrounds the first contact piece, so that then each of the contact pieces of one in the off state Field electrode is surrounded. This results in a with respect to the separation path symmetrical design of the electrical Field, which increases the dielectric strength of the Separation distance is increased.
- a further advantageous embodiment of the invention provides before that the end faces of the first field electrode and Compression cylinders each other in their axial projection cover at least partially.
- the first field electrode and the compression cylinder can for example the same or similar outer diameter have so that the entire interrupter unit with respect can be accommodated on their diameter to save space.
- the inner diameter of the field electrode can be so, for example can be chosen so that it is slightly larger than the outer diameter of the second contact piece so that the second contact piece at the same time a guide for the axial movement of the represents the first field electrode.
- the first Field electrode is connected to a telescopic rod, which as Lead for the axial movement of the first field electrode effecting compression spring.
- circuit breaker Of the circuit breaker according to the invention are in the figures the first contact piece 1, the second contact piece 2 and a compression piston 3 and one by not shown Drive device drivable compression cylinder 4 shown. All parts of the circuit breaker shown are rotationally symmetrical with respect to the central axis of the Contact pieces 1, 2. However, to simplify the Partially only the upper half of the arrangement drawn.
- the compression cylinder 4 bridges the Separation distance between the contact pieces 1 and 2.
- a bridging contact piece 5 firmly connected, which consists of individual contact lamellae, which are arranged on the circumference of a cylinder.
- the contact blades support each other radially outwards via springs 6 Holding tube 7 from.
- Both the bridging contact piece 5 and the holding tube 7, the compression cylinder 4 and the turbulence grid 8 are shown in the course of the switch-off movement in FIG moved to the right.
- the bridging contact piece 5 runs from the second contact piece 2, and interrupts the galvanic Contact between the first contact piece 1 and the second contact piece 2.
- a telescopic rod is extended 12, which is connected to the first field electrode 9 and as Lead for the spring 10 is used.
- FIG. 2 shows the compression cylinder 4 in an intermediate position, in which the bypass contact 5 is already from the second contact 2 has expired. Bridging contact piece 5, holding tube 7 and springs 6 are in FIGS. 2 and 3 not shown for the sake of clarity.
- FIG. 3 shows the switch-off state in which the compression cylinder 4 largely from the separation distance between the first contact piece 1 and the second contact piece 2 is pulled out.
- the volume between the compression piston 3 and the compression cylinder 4 has been during the switch-off process so far reduced that compressed Extinguishing gas from this volume through the turbulence grille 8 in the space between the first contact piece 1 and the second Contact piece 2 has flowed to a standing there Extinguishing arc.
- the compression cylinder 4 consists of an insulating material so that it has dielectric strength only slightly influenced the separation distance.
- the first field electrode 9 runs during the switch-off movement the compression cylinder 4 until the stop 13 the Movement of the field electrode 9 is limited and its position in the Switched off state determined.
- the first field electrode 9 in this position the electrical field in the Area of the second contact piece 2.
- the from the contact pieces 1, 2 and the two field electrodes 3, 9 existing arrangement leads to an overall leveling of the electrical field between the contact pieces and thus an increase in dielectric strength the separation distance.
- the stop 13 can for example also in the telescopic rod 12 be integrated.
Landscapes
- Circuit Breakers (AREA)
- Gas-Insulated Switchgears (AREA)
- Emergency Protection Circuit Devices (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Electric Clocks (AREA)
Description
Claims (3)
- Hochspannungs-Leistungsschalter mit einem ersten und einem zweiten Kontaktstück (1, 2), die im Ausschaltzustand eine Trennstrecke begrenzen, einem das erste Kontaktstück (1) umgebenden Kompressionskolben (3) und einem das zweite Kontaktstück (2) im Einschaltzustand umgebenden antreibbaren Kompressionszylinder (4) und mit einer das zweite Kontaktstück (2) im Ausschaltzustand umgebenden und gegenüber diesem axial beweglichen ersten Feldelektrode (9), wobei die erste Feldelektrode (9) von dem Kompressionszylinder (4) getrennt und gegenüber diesem axial beweglich ausgebildet ist, der Kompressionszylinder (4) im Ausschaltzustand zu dem zweiten Kontaktstück (2) einen Abstand aufweist, und die erste Feldelektrode (9) axial in Richtung des Kompressionszylinders (4) federbelastet ist und ein Anschlag (13) vorgesehen ist, der die Bewegung der ersten Feldelektrode (9) zur Trennstrecke hin begrenzt,
dadurch gekennzeichnet, daß
der Kompressionskolben (3) als zweite Feldelektrode ausgebildet ist und daß der Kompressionskolben (3) beim Ausschaltvorgang in Richtung des zweiten Kontaktstückes (2) antreibbar ist. - Hochspannungs-Leistungsschalter nach Anspruch 1,
dadurch gekennzeichnet,
daß die Stirnflächen (11) der ersten Feldelektrode (9) und des Kompressionszylinders (4) einander in ihrer axialen Projektion wenigstens teilweise überdecken. - Hochspannungs-Leistungsschalter nach Anspruch 1 oder einem der folgenden,
dadurch gekennzeichnet,
daß die erste Feldelektrode (9) mit einer Teleskopstange (12) verbunden ist, die als Federführung für eine eine Axialbewegung der ersten Feldelektrode (9) bewirkende Druckfeder (10) dient.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4343786 | 1993-12-17 | ||
| DE4343786A DE4343786C1 (de) | 1993-12-17 | 1993-12-17 | Hochspannungs-Leistungsschalter mit einer Feldelektrode |
| PCT/DE1994/001501 WO1995017001A1 (de) | 1993-12-17 | 1994-12-07 | Hochspannungs-leistungsschalter mit einer feldelektrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0734580A1 EP0734580A1 (de) | 1996-10-02 |
| EP0734580B1 true EP0734580B1 (de) | 1998-07-15 |
Family
ID=6505733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95902769A Expired - Lifetime EP0734580B1 (de) | 1993-12-17 | 1994-12-07 | Hochspannungs-leistungsschalter mit einer feldelektrode |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5728988A (de) |
| EP (1) | EP0734580B1 (de) |
| AT (1) | ATE168499T1 (de) |
| CA (1) | CA2179201A1 (de) |
| DE (2) | DE4343786C1 (de) |
| WO (1) | WO1995017001A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29509015U1 (de) * | 1995-05-24 | 1995-08-03 | Siemens AG, 80333 München | Hochspannungs-Leistungsschalter mit einem feststehenden Heizvolumen |
| DE19641550A1 (de) * | 1996-10-09 | 1998-04-16 | Asea Brown Boveri | Leistungsschalter |
| DE19644624C1 (de) * | 1996-10-18 | 1998-03-26 | Siemens Ag | Hochspannungsdruckgasschalter |
| US6762385B1 (en) * | 2003-01-14 | 2004-07-13 | Cleaveland/Price Inc. | Arc extinguishing device with a high speed whip |
| US7078642B2 (en) | 2003-01-14 | 2006-07-18 | Cleaveland/Price Inc. | Arc extinguishing device with a high speed whip |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2122183A1 (de) * | 1971-04-30 | 1972-11-16 | Siemens AG, 1000 Berlin u. 8000 München | Blaskolbenschalter |
| DE2140284A1 (de) * | 1971-08-06 | 1973-02-15 | Siemens Ag | Elektrischer druckgasschalter |
| DE2704389C3 (de) * | 1977-01-31 | 1980-06-26 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Trennschalter für metallgekapselte Hochspannungsschaltanlagen |
| DE3122442A1 (de) * | 1981-06-02 | 1982-12-23 | Siemens AG, 1000 Berlin und 8000 München | Trennschalter fuer hochspannungsanlagen |
| DE4010007A1 (de) * | 1990-03-26 | 1991-10-02 | Siemens Ag | Druckgasleistungsschalter mit antreibbarem kompressionskolben |
| DE4211158A1 (de) * | 1992-03-31 | 1993-10-07 | Siemens Ag | Hochspannungs-Leistungsschalter |
| DE4217232A1 (de) * | 1992-05-20 | 1993-11-25 | Siemens Ag | Elektrischer Hochspannungs-Leistungsschalter |
-
1993
- 1993-12-17 DE DE4343786A patent/DE4343786C1/de not_active Expired - Fee Related
-
1994
- 1994-12-07 DE DE59406463T patent/DE59406463D1/de not_active Expired - Fee Related
- 1994-12-07 AT AT95902769T patent/ATE168499T1/de not_active IP Right Cessation
- 1994-12-07 EP EP95902769A patent/EP0734580B1/de not_active Expired - Lifetime
- 1994-12-07 WO PCT/DE1994/001501 patent/WO1995017001A1/de not_active Ceased
- 1994-12-07 CA CA002179201A patent/CA2179201A1/en not_active Abandoned
- 1994-12-07 US US08/663,244 patent/US5728988A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2179201A1 (en) | 1995-06-22 |
| EP0734580A1 (de) | 1996-10-02 |
| DE4343786C1 (de) | 1995-02-23 |
| US5728988A (en) | 1998-03-17 |
| WO1995017001A1 (de) | 1995-06-22 |
| ATE168499T1 (de) | 1998-08-15 |
| DE59406463D1 (de) | 1998-08-20 |
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