DE562748C - Roll-off contact for outdoor disconnector very high voltage - Google Patents
Roll-off contact for outdoor disconnector very high voltageInfo
- Publication number
- DE562748C DE562748C DEA61546D DEA0061546D DE562748C DE 562748 C DE562748 C DE 562748C DE A61546 D DEA61546 D DE A61546D DE A0061546 D DEA0061546 D DE A0061546D DE 562748 C DE562748 C DE 562748C
- Authority
- DE
- Germany
- Prior art keywords
- rollers
- contact
- high voltage
- insulator
- roll
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/16—Contacts characterised by the manner in which co-operating contacts engage by abutting by rolling; by wrapping; Roller or ball contacts
Landscapes
- Insulators (AREA)
Description
Bei Trennschaltern für höchste Spannungen (220 kV) für die Montage im Freien ist es sehr wichtig", einen sicheren Kontakt, insbesondere im Winter, zu gewährleisten, wenn die Gefahr des Einfrierens der Kontakte besteht.With disconnectors for highest voltages (220 kV) for installation outdoors it is very important "to ensure safe contact, especially in winter, if there is a risk of the contacts freezing.
Bei den bisherigen Bauarten wird dies in der "Weise gelöst, daß der Kontakt durch zwei feste Kugeln vermittelt wird, welche ίο von zwei Seiten auf eine Platte auffahren oder bei anderen derart, daß die Kontakte in einer Hülse verdeckt sind, in welche lein beweglicher abgefederter Kolben eindringt. Im ersten Falle tritt die Gefahr eines Anfrierens der Kugeln und dadurch eine bedeutend erschwerte Abschaltung auf, abgesehen davon, daß auch bei glatten Flächen eine bedeutende Reibung auftritt, welche in Anbetracht der Höhe des Porzellankörpers ein großes Biegungsmoment auf den Isolator hervorrufen kann.In the previous designs, this is "solved in the way that the contact through two solid balls is conveyed, which ίο drive onto a plate from two sides or with others in such a way that the contacts are covered in a sleeve in which lein movable spring-loaded piston penetrates. In the first case, there is a risk of freezing of the balls and thus a significantly more difficult shutdown, apart from the fact that even with smooth surfaces significant friction occurs, which in view of the height of the porcelain body can cause a large bending moment on the insulator.
Im zweiten Falle besteht die Gefahr, daß in den Deckzylinder durch die Kolbenöfftiung Schnee hereingeweht werden kann, so daß auch hier die Gefahr des Anfrierens nicht vollständig beseitigt ist, abgesehen davon, daß die ganze Einrichtung sehr kompliziert und teuer ist.In the second case there is a risk that the piston opening into the cylinder cover Snow can be blown in, so that here too the risk of freezing is not completely eliminated, apart from that the whole facility is very complicated and expensive.
Die vorliegende Erfindung, welche in den Abb. ι bis 3 veranschaulicht ist, beseitigt diese Nachteile dadurch, daß auf dem einen Isolatorkopf des Trennschalters nachgiebig nebeneinander befestigte und drehbar gelagerte Kontaktrollen angeordnet sind, welche eine derart ausgedrehte Form besitzen, daß der auf dem zweiten Isolator befestigte, zwischen die Rollen eintretende Schaltstift eine Führung durch die Rollen erhält.The present invention, which is illustrated in Figs. Ι to 3, eliminated these disadvantages in that on the one insulator head of the disconnector is resilient side by side fastened and rotatably mounted contact rollers are arranged, which have such a twisted shape that the mounted on the second insulator, between the switching pin entering the rollers receives a guide through the rollers.
Die im Hochspannungsschalterbau an sich bekannte Abwälzkontakte ergebenden RoI-len^C (Abb. 1 und 2) sind zweckmäßig auf dem Bolzen S mit einem bestimmten Spiel aufgeschoben, so daß sie sich in bestimmten Grenzen nach, oben und nach unten bewegen können. Zwischen diese Rollen, welche von einer in bezug auf die Spannung regelbaren Feder P gegeneinandergedrückt werden, fährt das Kontaktstück T, welches am zweiten Isolator befestigt ist (Abb. 3). Dadurch erfolgt ein Abwälzen der Rollend auf dem Kontaktstück T1 und im Falle des Ausschaltens wird das Eis leicht abgebröckelt, ohne daß es notwendig wäre, eine größere Kraft auf den Isolator auszuüben.The rolling contacts known per se in high-voltage switch construction (Figs. 1 and 2) are expediently pushed onto the bolt S with a certain amount of play so that they can move upwards and downwards within certain limits. The contact piece T, which is attached to the second insulator, moves between these rollers, which are pressed against one another by a spring P which can be regulated with respect to the tension (Fig. 3). As a result, the roller rolls on the contact piece T 1 and, in the event of switching off, the ice is easily crumbled off without it being necessary to exert a greater force on the insulator.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA61546D DE562748C (en) | Roll-off contact for outdoor disconnector very high voltage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA61546D DE562748C (en) | Roll-off contact for outdoor disconnector very high voltage |
Publications (1)
Publication Number | Publication Date |
---|---|
DE562748C true DE562748C (en) | 1932-10-29 |
Family
ID=6942615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA61546D Expired DE562748C (en) | Roll-off contact for outdoor disconnector very high voltage |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE562748C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE940001C (en) * | 1945-03-07 | 1956-03-08 | Siemens Ag | Column-shaped point disconnector |
DE1132619B (en) * | 1959-08-12 | 1962-07-05 | Fritz Driescher K G Spezialfab | Electric push switch, in particular disconnector or switch disconnector, with roller contacts |
-
0
- DE DEA61546D patent/DE562748C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE940001C (en) * | 1945-03-07 | 1956-03-08 | Siemens Ag | Column-shaped point disconnector |
DE1132619B (en) * | 1959-08-12 | 1962-07-05 | Fritz Driescher K G Spezialfab | Electric push switch, in particular disconnector or switch disconnector, with roller contacts |
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