DE897875C - Rolling contact arrangement for circuit breaker - Google Patents

Rolling contact arrangement for circuit breaker

Info

Publication number
DE897875C
DE897875C DES26120A DES0026120A DE897875C DE 897875 C DE897875 C DE 897875C DE S26120 A DES26120 A DE S26120A DE S0026120 A DES0026120 A DE S0026120A DE 897875 C DE897875 C DE 897875C
Authority
DE
Germany
Prior art keywords
contact
contact arrangement
rolling contact
circuit breaker
rolling
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
Application number
DES26120A
Other languages
German (de)
Inventor
Fritz Dipl-Ing Ulrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DES26120A priority Critical patent/DE897875C/en
Application granted granted Critical
Publication of DE897875C publication Critical patent/DE897875C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts

Landscapes

  • Contacts (AREA)

Description

Die Erfindung bezieht sich auf eine Wälzkontaktanordnung für Leistungsschalter, bei der im geschlossenen Zustand ein Spezialkontaktwerkstoff die Stromführung übernimmt. Derartige Spezialkontaktwerkstoffe werden in steigendem Maße bei Leistungschaltern zur Erhöhung der Schaltleistung verwendet. Infolge der Beanspruchung durch den Schaltfunken brennet der vorzugsweise aus Kupfer bestehende Abwälzkontakt im Laufe der Zeit so weit ab, @daß der Wälz-' vorgang nicht mehr gewährleistet ist. Bei der damit notwendig werdenden Auswechslung des Wälzkontaktes wird bei .den bisher bekannten Anordnungen auch der aus Spezialkontaktwerkstoff bestehende Teil ausgewechselt. Infolge des hohen Preises für den Kontaktwerkstoff ist es erwünscht, diesen Kontaktteil nicht vorzeitig erneuern zu müssen.The invention relates to a rolling contact arrangement for circuit breakers, in which a special contact material takes over the current conduction when closed. Such special contact materials are increasingly being used in circuit breakers used to increase the switching capacity. As a result of the stress caused by the switching spark the rolling contact, which is preferably made of copper, burns in this way over time far from @ that the rolling 'process is no longer guaranteed. When making it necessary the replacement of the rolling contact is in the previously known arrangements the part made of special contact material was also replaced. As a result of the At a high price for the contact material, it is desirable not to have this contact part having to renew prematurely.

Erfindungsgemäß besteht die Kontaktanordnung aus einem Hauptkontaktteil aus Spezialkontakt-Werkstoff und einem unabhängig davon auswechselbaren, mit der gleichen Schraube zu befestigenden Vorkontaktteil.According to the invention, the contact arrangement consists of a main contact part made of special contact material and an independently interchangeable with the same screw to be fastened pre-contact part.

In der Figur ist ein Ausführungsbeispiel der Erfindung dargestellt. An dem Schaltersystem i ist mittels einer Schraube 2 der V orkontakt 3 und der Hauptkontakt 4. befestigt. An der Kantaktstelle ist der Spezialkontaktwerkstof 5 angeordnet. Für eine einwandfreie Kontaktgebung kann es erforderlich sein, daß der Spezialkontaktwerkstoff 5 etwas über die Fläche des Vorkontaktes 3 hinausragt, so daß nach dem Durchwälzen des Vorkontaktes 3 der Hauptkontakt q. mit Sicherheit geschlossen ist. Es ist deutlich zuerkennen, daß der Vorkontakt 3 unabhängig vom Hauptkontakt 4. auszuwechseln ist.In the figure, an embodiment of the invention is shown. The front contact 3 and the main contact are connected to the switch system i by means of a screw 2 4. attached. The special contact material 5 is arranged at the contact point. For perfect contact it may be necessary that the special contact material 5 protrudes slightly beyond the surface of the pre-contact 3, so that after rolling through of the pre-contact 3 the main contact q. is definitely closed. It is clear recognize that the pre-contact 3 is to be replaced independently of the main contact 4.

Claims (2)

PATENTANSPRÜCHE: i. Wälzkontaktanordnung für Leistungsschalter, bei der im geschlossenen Zustand ein Spezialkontaktwerkstoff die Stromführung übernimmt, dadurch gekennzeichnet, idaß die Kontaktanordnung aus einem Hauptkontaktteil aus Spez. ialkontaktwerkstoff und einem auswechselbaren, mit der gleichen Schraube zu befestigenden Vorkontaktteil besteht. PATENT CLAIMS: i. Rolling contact arrangement for circuit breakers, at a special contact material takes over the power supply when closed, characterized in that the contact arrangement consists of a main contact part Special contact material and an exchangeable one with the same screw fastening pre-contact part consists. 2. Wälzkontaktanordnung nach Anspruch i, dadurch gekennzeichnet, daß der Hauptkontaktteil etwas über die Fläche des Vorkontaktes hinausragt.2. rolling contact arrangement according to claim i, characterized characterized in that the main contact part is slightly above the area of the pre-contact protrudes.
DES26120A 1951-12-01 1951-12-01 Rolling contact arrangement for circuit breaker Expired DE897875C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES26120A DE897875C (en) 1951-12-01 1951-12-01 Rolling contact arrangement for circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES26120A DE897875C (en) 1951-12-01 1951-12-01 Rolling contact arrangement for circuit breaker

Publications (1)

Publication Number Publication Date
DE897875C true DE897875C (en) 1953-11-26

Family

ID=7478590

Family Applications (1)

Application Number Title Priority Date Filing Date
DES26120A Expired DE897875C (en) 1951-12-01 1951-12-01 Rolling contact arrangement for circuit breaker

Country Status (1)

Country Link
DE (1) DE897875C (en)

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