DE2821474C2 - - Google Patents
Info
- Publication number
- DE2821474C2 DE2821474C2 DE19782821474 DE2821474A DE2821474C2 DE 2821474 C2 DE2821474 C2 DE 2821474C2 DE 19782821474 DE19782821474 DE 19782821474 DE 2821474 A DE2821474 A DE 2821474A DE 2821474 C2 DE2821474 C2 DE 2821474C2
- Authority
- DE
- Germany
- Prior art keywords
- contact
- contact piece
- attached
- rod
- pieces
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/34—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact adapted to engage an overhead transmission line, e.g. for branching
- H01H31/36—Contact moved by pantograph
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Description
Die Erfindung bezieht sich auf eine Kontaktanordnung für Scherentrennschalter, wie sie in dem Hauptpatent 28 09 499 beschrieben ist.The invention relates to a contact arrangement for Scissor disconnector, as in the main patent 28 09 499 is described.
Es handelt sich hier um einen Scherentrennschalter mit einem Paar an den Enden der Schere angebrachten beweglichen Hauptkontaktstücken und einem an der Hochspannungsleitung befestigten Gegenkontaktstück, wobei an einem der beiden Kontaktstücke separat federnde Vorkontakt stücke derart vorstehend angebracht sind, daß die Vorkontakt stücke beim Einschalten vor den Hauptkontaktstücken schließen und beim Ausschalten nach den Hauptkontaktstücken öffnen.It is here around a pair of scissors disconnectors at the ends of the Scissors attached movable main contact pieces and one mating contact piece fastened to the high-voltage line, wherein on one of the two contact pieces, separate spring contact Pieces are attached above so that the pre-contact Close the pieces in front of the main contact pieces when switching on and open after switching off after the main contact pieces.
Der Erfindung liegt die Aufgabe zugrunde, die in dem Hauptpatent beschriebene, dem Gegenkontaktstück vorgelagerte Kontaktstückanordnung weiter auszubilden. The invention is based on the object in the main patent described, upstream of the counter contact piece To further develop contact piece arrangement.
Diese Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Hauptanspruchs enthaltenen Merkmale gelöst.This object is achieved by the in the characteristics of Features contained main claim solved.
Die Zeichnung zeigt eine Ausführungsform der Kontaktanordnung gemäß der Erfindung in der Einschaltstellung. Gegenüber der in der Hauptanmeldung beschriebenen Anordnung sind hier die als Vorkontakt dienenden Stangen 13a, 13b zur Materialeinsparung nur an einer Seite des Gegenkontaktstückes 4 angebracht. Das Gegen kontaktstück 4 ist in bekannter Weise mittels Stangen 10a, 10b oder Seilringen an einer Sammelschiene (nicht dargestellt) be festigt. Die Elektroden 12a, 12b dienen zur Vergleichmäßigung des elektrischen Feldes. Das Gegenkontaktstück 4 wird von den Kontaktstücken 3a, 3b, die mit Kontaktschienen 6a, 6b ver sehen sind, umfaßt. Am Hauptkontaktstück 3b ist seitlich eine Hilfskontaktschiene 15 befestigt. Am Gegenkontaktstück 4 sind weiterhin durch ein Halteteil 16 die beiden als Vorkontaktstücke dienenden Stangen 13a, 13b eingeklemmt. Dabei sind beide Enden der Stange 13a am Teil 16 befestigt, während von der Stange 13b nur das Ende 17 am Teil 16 befestigt ist, das andere Ende 18 aber in einer Langlochführung 19 seitlich verschiebbar ge lagert ist. Das als Vorkontakt dienende Ende der Stange 13a ist im Kontaktbereich 14 vom Kontaktstück 3b weg in einem Winkel von etwa 5° zur Senkrechten nach außen gebogen.The drawing shows an embodiment of the contact arrangement according to the invention in the switched-on position. Compared to the arrangement described in the main application, the rods 13 a, 13 b serving as pre-contact are only attached to one side of the mating contact piece 4 to save material. The counter contact piece 4 is fastened in a known manner by means of rods 10 a, 10 b or rope rings on a busbar (not shown). The electrodes 12 a, 12 b serve to make the electric field more uniform. The mating contact piece 4 is of the contact pieces 3 a, 3 b, which are seen with contact rails 6 a, 6 b, includes. On the main contact piece 3 b, an auxiliary contact rail 15 is attached laterally. On the counter-contact piece 4 are further characterized by a retaining member 16, the two serving as Vorkontaktstücke rods 13 a, b is clamped. 13 Both ends of the rod 13 a are attached to part 16 , while of the rod 13 b only the end 17 is attached to part 16 , the other end 18 but is laterally displaceable in an elongated hole guide 19 . Serving as a pre-contact end of the rod 13 a is b in the contact region 14 from the contact piece 3 away at an angle of about 5 ° to the vertical bent outward.
Im folgenden wird die Wirkungsweise der Kontaktanordnung bei einer Einschaltung beschrieben:In the following, the mode of operation of the contact arrangement is shown described an activation:
Sobald sich die Kontaktstücke 3a, 3b dem Gegenkontaktstück 4 nähern, erfolgt der erste Spannungsüberschlag am Kontaktstück 3b. Durch die Neigung der Stange 13a im Kontakt bereich 14 berührt die Hilfskontaktschiene 15 die Stange 13a nur in ihrem vorderen Bereich. Bei Kontaktberührung der Haupt kontaktschienen 6a, 6b berührt die Hilfskontaktschiene 15 die Stange 13a dagegen im hinteren Bereich. Dieser hintere Bereich ist nicht durch Lichtbogenfußpunkte verschmutzt, so daß beim Wiederöffnen der Kontaktstücke 3a, 3b eine einwandfreie Kommutierung des Stromes auf die Hilfskontaktschiene 15 erfolgt. Der Lichtbogenfußpunkt bei der Trennung der Kontakte befindet sich dann wieder am vorderen Teil der Hilfskontaktschiene 15.As soon as the contact pieces 3 a, 3 b approach the counter contact piece 4 , the first voltage flashover occurs at the contact piece 3 b. Due to the inclination of the rod 13 a in the contact area 14 , the auxiliary contact rail 15 touches the rod 13 a only in its front area. When contacting the main contact rails 6 a, 6 b, the auxiliary contact rail 15 touches the rod 13 a, however, in the rear area. This rear area is not contaminated by arcing base points, so that when the contact pieces 3 a, 3 b are reopened, the current on the auxiliary contact rail 15 is properly commutated. The arc base point when the contacts are separated is then again on the front part of the auxiliary contact rail 15 .
Claims (3)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782821474 DE2821474A1 (en) | 1978-05-17 | 1978-05-17 | HV single column shears type isolator - has bent spring rods attached to opposite contact and one of them is bent away from main contact |
FR7905398A FR2419575A1 (en) | 1978-03-06 | 1979-03-01 | HIGH VOLTAGE DISCONNECT |
CH213579A CH645750A5 (en) | 1978-03-06 | 1979-03-05 | High-voltage pantograph interruptor switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782821474 DE2821474A1 (en) | 1978-05-17 | 1978-05-17 | HV single column shears type isolator - has bent spring rods attached to opposite contact and one of them is bent away from main contact |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2821474A1 DE2821474A1 (en) | 1979-11-22 |
DE2821474C2 true DE2821474C2 (en) | 1991-07-11 |
Family
ID=6039532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782821474 Granted DE2821474A1 (en) | 1978-03-06 | 1978-05-17 | HV single column shears type isolator - has bent spring rods attached to opposite contact and one of them is bent away from main contact |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2821474A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3205909C2 (en) * | 1981-02-19 | 1987-09-10 | Ruhrtal Elektrizitätsgesellschaft Hartig GmbH & Co, 4300 Essen | Disconnectors, in particular single column disconnectors |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2727105A (en) * | 1951-10-12 | 1955-12-13 | Chance Co Ab | Sectionalizing switch gear |
US2831931A (en) * | 1954-05-14 | 1958-04-22 | Ite Circuit Breaker Ltd | Arcing horn for circuit interrupter |
DE1085941B (en) * | 1957-11-07 | 1960-07-28 | Licentia Gmbh | Single column scissor separator |
US2988610A (en) * | 1958-06-02 | 1961-06-13 | James R Kearney Corp Of Canada | Arc-break device |
DE1240156B (en) * | 1965-08-19 | 1967-05-11 | Siemens Ag | Contact arrangement, especially for scissor separators |
DE1281524B (en) * | 1967-04-04 | 1968-10-31 | Licentia Gmbh | Scissor break contact device |
DE1665510C3 (en) * | 1968-02-09 | 1980-11-27 | Ruhrtal Elektrizitaetsgesellschaft Hartig Gmbh & Co, 4300 Essen | High-voltage switch for outdoor installation |
-
1978
- 1978-05-17 DE DE19782821474 patent/DE2821474A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2821474A1 (en) | 1979-11-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8176 | Proceedings suspended because of application no: |
Ref document number: 2809499 Country of ref document: DE Format of ref document f/p: P |
|
8178 | Suspension cancelled | ||
AF | Is addition to no. |
Ref country code: DE Ref document number: 2809499 Format of ref document f/p: P |
|
AF | Is addition to no. |
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|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8340 | Patent of addition ceased/non-payment of fee of main patent |