DE2551625C3 - Arc extinguishing chamber for electrical load switches - Google Patents
Arc extinguishing chamber for electrical load switchesInfo
- Publication number
- DE2551625C3 DE2551625C3 DE19752551625 DE2551625A DE2551625C3 DE 2551625 C3 DE2551625 C3 DE 2551625C3 DE 19752551625 DE19752551625 DE 19752551625 DE 2551625 A DE2551625 A DE 2551625A DE 2551625 C3 DE2551625 C3 DE 2551625C3
- Authority
- DE
- Germany
- Prior art keywords
- chamber
- extinguishing chamber
- sealing collar
- extinguishing
- sealing
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
- F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
-
- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/64—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid wherein the break is in gas
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Contacts (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Description
eine größere Dichtfläche zu erreichen.to achieve a larger sealing surface.
Die Dichtwirkung wird noch erhöht wenn man um den Rand 6 der Dichtmanschette 7 noch einen Federring 8 legt, der den Rand 6 an das SchaJtstück 5 preßt.The sealing effect is increased if you add a spring ring around the edge 6 of the sealing collar 7 8, which presses the edge 6 against the shell 5.
Falls der Werkstoff der Dichtmanschette 7 durch Lichtbogeneinwirkung beschädigt werden könnte oder das Löschvermögen beeinträchtigende Gase abgibt, so empfiehlt sich, auf das Kammerunterteil 2 einen aus anorganischem Material, z. B. Glas oder Keramik, bestehenden, hohlzylindrischen Schutzkörper 9 ζ. Β. ίο durch Kleben zu befestigen.If the material of the sealing sleeve 7 could be damaged by arcing or emits gases that impair the extinguishing capacity, it is advisable to switch to the lower chamber part 2 inorganic material, e.g. B. glass or ceramic, existing, hollow cylindrical protective body 9 ζ. Β. ίο to be fixed by gluing.
Die Verbindung der Kammerteile 1, 2 erfolgt durch Kleben, Verschrauben oder bevorzugt durch Ultraschallverschweißung der Verbindungsflansche 13.The chamber parts 1, 2 are connected by gluing, screwing or preferably by ultrasonic welding the connecting flanges 13.
In dem Kammeroberteil 1 sind Entlüftungskanäle 14 vorgesehen, die einen Luftaustritt aus dem Stauraum 15 bei der Ausschaltbewegung des Schaltstückes 5 ermöglichen und der Dichtmanschette 7 gestatten, sich an der unter Vermeidung von Ecken und Kanten abgerundeten Innenseite des Kammeroberteils 1 abzustützen, wodurch im ausgeschalteten Zustand eine Entlastung der Dichtmanschette 7 erfolgt, da der Innendruck nun von dem formstabilen Kammeroberteil 1 aufgefangen wird.Ventilation channels 14 are provided in the upper chamber part 1, which allow air to escape from the storage space 15 enable during the disconnection movement of the switching piece 5 and allow the sealing collar 7 to to be supported on the inside of the upper chamber part 1, which is rounded while avoiding corners and edges, whereby in the switched off state a relief of the sealing collar 7 takes place, since the Internal pressure is now absorbed by the dimensionally stable upper chamber part 1.
Die Dichtmanschette 7 kann so z. B. aus Silikonkautschuk oder ähnlich biegsamen Material hergestellt sein.The sealing collar 7 can be so z. B. made of silicone rubber or similar flexible material.
Je nach Höhe des zu unterbrechenden S'romes können vor dem Zusammenbau der Kammerte.le 1, 2 die Kontaktflächen durch Abbrandkappen 10, Il ergänzt werden, die beispielsweise durch Anpressen, Verschrauben od. dgl. am Kontakt 3 und Schaltstück 5 befestigt werden.Depending on the height of the S'romes to be interrupted can before assembling the Kammerte.le 1, 2, the contact surfaces by burning caps 10, Il can be supplemented, for example by pressing, screwing or the like on contact 3 and contact piece 5 be attached.
Unmittelbar vor der Zusammensetzung dur Kammerteile 1,2 wird der untere Rand 12 der Dichtmanschette 7 ganz oder, wie im Beispiel gezeigt, teilweise zwischen die Verbindungsflächen der Kammerteile 1,2 eingelegt Ausnehmungen in den Kammerteilen sorgen für eine die Dichtwirkung erhöhende, labyrinthartige Verbindung, wobei der Rand 12 größer als die Ausnehmungen ist und in diese eingepreßt werden muß.Immediately before the assembly through chamber parts 1, 2, the lower edge 12 of the sealing collar 7 becomes wholly or, as shown in the example, partially inserted between the connecting surfaces of the chamber parts 1, 2 Recesses in the chamber parts ensure a labyrinth-like connection that increases the sealing effect, the edge 12 being larger than the recesses and having to be pressed into them.
Nach erfolgter Verbindung der Kammerteile 1,2 wird das gasförmige Löschmittel unter Druck durch eine nicht dargestellte im Kontakt 3 oder Schaltstück 5 vorgesehene Öffnung eingefüllt, die anschließend dicht verschlossen wird.After the chamber parts 1, 2 have been connected, the gaseous extinguishing agent is pressurized by a Not shown in the contact 3 or contact piece 5 provided opening is filled, which is then tight is locked.
Durch das Vorsehen einer Feder 16 zwischen Kammeroberteil 1 und beweglichem Schaltstück 5 kann je nach Einstellung eine unabhängig von der äußeren Antriebsvorrichtung wirkende Kraft in Schließrichtung aufgebracht werden, wobei sich der Manschettenrand 6 an einer der Feder 16 vorgelagerten Ringscheibe 17 abstützt.By providing a spring 16 between the upper chamber part 1 and the movable contact piece 5 can depending on the setting, a force acting in the closing direction independently of the external drive device are applied, with the cuff edge 6 on an annular disk 17 upstream of the spring 16 supports.
Die in F i g. 1 und 2 gezeigte Kammerform birgt den Vorteil in sich, daß das deckeiartige Kammerunterteil 2 entfernt und durch ein zweites Kammeroberteil 1 ersetzt werden kann, wobei eine symmetrische Anordnung aus zwei Kammeroberteilen 1 entsteht. Die dadurch verlängerte Trennstrecke und das vergrößerte Kammervolumen erlauben die Verwendung der Löschkammer für eine höhere Spannungsstufe, z. B. Löschkammer bestehend aus Kammeroberteil 1 und Kammerunterteil 2 für 10 kV und Löschkammer bestehend aus zwei Kammeroberteilen 1 für 20 kV.The in F i g. The chamber shape shown in FIG. 1 and 2 has the advantage that the lid-like chamber lower part 2 removed and replaced by a second upper chamber part 1, with a symmetrical arrangement arises from two upper chamber parts 1. The resulting lengthened isolating distance and the enlarged Chamber volumes allow the extinguishing chamber to be used for a higher voltage level, e.g. B. quenching chamber consisting of upper chamber part 1 and lower chamber part 2 for 10 kV and extinguishing chamber from two upper chamber parts 1 for 20 kV.
Hierzu 2 Blatt ZeichnungenFor this purpose 2 sheets of drawings
Claims (10)
•zo Diese Aufgabe wird durch die im Patentanspruch 1 angegebene Erfindung gelöst.The object of the present invention is, compared to this prior art, to reduce the mechanical stress on the sealing sleeve caused by the pressurized gas which is below several times the atmospheric pressure and at the same time to provide a method of fastening the sealing sleeve which ensures a high level of durability of the connection,
• zo This object is achieved by the invention specified in claim 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752551625 DE2551625C3 (en) | 1975-11-18 | 1975-11-18 | Arc extinguishing chamber for electrical load switches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752551625 DE2551625C3 (en) | 1975-11-18 | 1975-11-18 | Arc extinguishing chamber for electrical load switches |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2551625A1 DE2551625A1 (en) | 1977-06-02 |
DE2551625B2 DE2551625B2 (en) | 1977-10-20 |
DE2551625C3 true DE2551625C3 (en) | 1978-06-15 |
Family
ID=5961966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19752551625 Expired DE2551625C3 (en) | 1975-11-18 | 1975-11-18 | Arc extinguishing chamber for electrical load switches |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2551625C3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2703457A1 (en) * | 1977-01-28 | 1978-08-03 | Driescher Spezialfab Fritz | Medium voltage power circuit breaker - has plate on movable contact in extinguishing chamber generating intense gas flow when contact is opened |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3020208A1 (en) * | 1980-05-28 | 1981-12-03 | Hundt & Weber Schaltgeräte GmbH, 5905 Freudenberg | Switch with elastic sealing bellows - located around two insulating circular blocks carrying contacts and moving apart axially |
DE3717864A1 (en) * | 1987-05-26 | 1988-11-17 | Slamecka Ernst | Vacuum switch |
DE3718531A1 (en) * | 1987-05-29 | 1988-08-11 | Slamecka Ernst | Vacuum switch |
-
1975
- 1975-11-18 DE DE19752551625 patent/DE2551625C3/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2703457A1 (en) * | 1977-01-28 | 1978-08-03 | Driescher Spezialfab Fritz | Medium voltage power circuit breaker - has plate on movable contact in extinguishing chamber generating intense gas flow when contact is opened |
Also Published As
Publication number | Publication date |
---|---|
DE2551625B2 (en) | 1977-10-20 |
DE2551625A1 (en) | 1977-06-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: FRITZ DRIESCHER KG SPEZIALFABRIK FUER ELEKTRIZITAE |