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DE1002439B - Contact arrangement, especially for circuit breakers with upstream and main contacts - Google Patents

Contact arrangement, especially for circuit breakers with upstream and main contacts

Info

Publication number
DE1002439B
DE1002439B DEV7384A DEV0007384A DE1002439B DE 1002439 B DE1002439 B DE 1002439B DE V7384 A DEV7384 A DE V7384A DE V0007384 A DEV0007384 A DE V0007384A DE 1002439 B DE1002439 B DE 1002439B
Authority
DE
Germany
Prior art keywords
contacts
contact
main
contact arrangement
circuit breakers
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.)
Pending
Application number
DEV7384A
Other languages
German (de)
Inventor
Hans Kummer
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.)
Voigt and Haeffner AG
Original Assignee
Voigt and Haeffner 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 Voigt and Haeffner AG filed Critical Voigt and Haeffner AG
Priority to DEV7384A priority Critical patent/DE1002439B/en
Publication of DE1002439B publication Critical patent/DE1002439B/en
Pending legal-status Critical Current

Links

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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • 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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • 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
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • 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
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • H01H2001/228—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars with insulating spacers between the contact bars

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Description

Bei elektrischen Schaltern, insbesondere bei Leistungsschalter!!, verwendet man bekanntlich zur Schonung der den Dauerstrom führenden. Hauptkontakte Vorkontakte, welche kurzzeitig die volle Lichtbogenleistung übernehmen müssen. Trotz der in vielen Fällen kräftigen Ausbildung der Vorkontakte hat es sich gezeigt, daß die Lebensdauer derartiger Vorkontakte infolge des Abbrandes verhältnismäßig gering ist, so daß sie des öfteren ausgewechselt werden müssen,In the case of electrical switches, especially circuit breakers !!, it is known to be used for Protection of the continuous current carrying. Main contacts Pre-contacts, which briefly have the full Arc power must take over. Despite the strong formation of the previous contacts in many cases it has been shown that the service life of such pre-contacts is proportionate as a result of the burn-off is small, so that they often have to be replaced,

Zweck der Erfindung ist es, den geschilderten Nachteil der geringen Lebensdauer der die Lichtbogenleistung übernehmenden Vorkontakte zu vermeiden und eine möglichst hohe Schaltleistung bei kleinsten Abmessungen zu erreichen. Erfindungsgetnäß ge^ schieht dies dadurch, daß auf jedem Hauptkontakt mehrere Vorkontakte angeordnet sind, von denen je einer leitend mit dem Hauptkontakt verbunden ist, während die anderen isoliert gegen den Hauptkontakt angeordnet und mit den Vorkontakten des Gegen,-kontaktes elektrisch in Reihe geschaltet sind.The purpose of the invention is to remedy the described disadvantage to avoid the short service life of the pre-contacts taking over the arc power and to achieve the highest possible switching capacity with the smallest possible dimensions. According to the invention this is done in that several pre-contacts are arranged on each main contact, each of which one is conductively connected to the main contact, while the other is isolated from the main contact arranged and electrically connected in series with the pre-contacts of the mating contact.

Es ist zwar bekannt, mehrere Schalter bzw. Kontaktstellen in Reihe anzuordnen, um diese für kleinere Spannungen auslegen zu können. Man, hat auch in Reihe geschaltete Unterbrechungsstellen zu dem Zwecke vorgesehen, die Lichtbogenleistung von einem hierfür ausgebildeten und entsprechend angeordneten Kontakt übernehmen zu lassen, während der andere Kontakt nahezu lichtbogenfrei geschaltet wird. Demgegenüber sind nach der Erfindung mehrere Vorkontakte auf jedem Hauptkontakt angeordnet, die mit den Vorkontakten des Gegenkontaktes in Reihe geschaltet sind, so daß also der Abbrand des die Lichtbogenleistung übernehmenden Kontaktes geringer ist als bei, den üblichen Vorkontakten.It is known to arrange several switches or contact points in series in order to use them for smaller ones To be able to interpret tensions. One also has interruption points connected in series to that Purposes provided, the arc power from a specially designed and arranged accordingly To let contact take over, while the other contact is switched almost without arcing. In contrast are arranged according to the invention several pre-contacts on each main contact, which with the pre-contacts of the mating contact are connected in series, so that the burn-off of the arc power accepting contact is lower than with the usual previous contacts.

Zweckmäßig sind die Vorkontakte auf dem Hauptkontakt räumlich nebeneinander angeordnet. Um eine vorteilhafte Stromzu- und -abführung zu gewährleisten, ist auf jedem Hauptkontakt eine ungerade Anzahl von Vorkontakten angeordnet. Ferner ist es vorteilhaft, daß jeder Vorkontakt in einer durch Lichtbogentrennwände gebildeten, Kammer untergebracht ist.The preliminary contacts are expediently arranged spatially next to one another on the main contact. To a To ensure advantageous power supply and discharge, there is an odd number on each main contact arranged by previous contacts. It is also advantageous that each pre-contact in one by arc partitions formed, chamber is housed.

In der Zeichnung ist ein Ausführungsbeispiel gemäß der Erfindung dargestellt.In the drawing, an embodiment according to the invention is shown.

Bild 1 zeigt die Ansicht der Kontaktanordnung, undFigure 1 shows the view of the contact arrangement, and

Bild 2 läßt die Hintereinanderschaltung der einzelnen Vorkontaktteile in schematischer Darstellung erkennen. Figure 2 shows the series connection of the individual pre-contact parts in a schematic representation.

Der Hauptkontakt 1 ist ortsfest angeordnet und mit den ebenfalls ortsfesten1 Vorkontakten, 2, 3 und 4 versehen. Der Vorkontakt 4 kann mit dem Hauptkontakt 1 aus einem einzigen Stück bestehen oder aber auf bekannte Weise mit diesem stromleitend ver-Kontaktanordnung, The main contact 1 is arranged in a stationary manner and is provided with the also stationary 1 pre-contacts 2, 3 and 4. The pre-contact 4 can consist of a single piece with the main contact 1 or in a known manner with this electrically conductive contact arrangement,

insbesondere für Leistungsschalterespecially for circuit breakers

mit Vor- und Hauptkontaktenwith preliminary and main contacts

Anmelder:Applicant:

Voigt & Haeffner Aktiengesellschaft,
Frankfurt/M., Hanauer Landstr. 142-172Voigt & Haeffner Aktiengesellschaft,
Frankfurt / M., Hanauer Landstr. 142-172

Hans Kummer, Frankfurt/M.,
ist als Erfinder genannt wordenHans Kummer, Frankfurt / M.,
has been named as the inventor

bunden sein, Die metallisch verbundenen Vorkontakte 2 und 3 sind durch eine Isolierzwischenlage 5 von dem Hauptkontakt 1 getrennt. Der Hauptkontakt 6 ist ebenso wie die Vorkontakte 7, 8 und 9 beweglich angeordnet. Die Vorkontakte 8 und 9 können wie die Vorkontakte 2 und 3 entweder aus einem Stück bestehen oder aber durch ein Verbindungsstück, beispielsweise durch eine flexible Lasche 10, miteinander stromleitend verbunden werden. Beim Ein- und Ausschaltvorgang werden sämtliche Vorkontakte elektrisch hintereinandergeschaltet Wie aus den Bildern 1 und 2 zu ersehen ist, sind jeweils drei Vorkontakte nebeneinander angeordnet. Die Zahl der Vorkontakte läßt sich im Bedarfsfalle jedoch erhöhen, wesentlich ist mit Rücksicht auf die günstigere Stromzu- und -abführung nur, daß deren Zahl ungerade ist. Die Breite der einzelnen Vorkontakte kann dabei so gewählt werden, daß die eingenommene Gesamtbreite nicht größer als die des Hauptkontaktes 1 und 6 ist. Die schmale Bauweise der Vorkontakte begünstigt überdies die Anordnung von Trennwänden111 oder deionisierenden Eisenblasblechen, die den Lichtbogen je Unterbrechungsstelle in bekannter Weise stark abkühlen und unterteilen. Auf diese Weise wird eine weitere Steigerung in der Löschwirkung des Lichtbogens erzielt.The metallically connected pre-contacts 2 and 3 are separated from the main contact 1 by an insulating intermediate layer 5. The main contact 6, like the pre-contacts 7, 8 and 9, is movably arranged. The pre-contacts 8 and 9, like the pre-contacts 2 and 3, can either consist of one piece or be connected to one another in a current-conducting manner by a connecting piece, for example by a flexible tab 10. When switching on and off, all pre-contacts are electrically connected in series. As can be seen from Figures 1 and 2, three pre-contacts are arranged next to each other. The number of pre-contacts can, however, be increased if necessary; the only important thing, considering the more favorable current supply and discharge, is that their number is odd. The width of the individual pre-contacts can be chosen so that the total width assumed is not greater than that of the main contacts 1 and 6. The narrow design of the arcing contacts favors also the arrangement of partition walls 1 11 or deionizing Eisenblasblechen that strongly cool the arc each interruption point in a known manner and divide. In this way, a further increase in the extinguishing effect of the arc is achieved.

Claims (4)

PATENTANSPRÜCHE:PATENT CLAIMS: 1. Kontaktanordnung, insbesonderefür Leistungsschalter mit Vor- und Hauptkontakten, dadurch gekennzeichnet, daß auf jedem Hauptkontakt (1, 6) mehrere Vorkontakte (2 bis 4 und 7 bis 9) angeordnet sind, von denen je einer (4, 7) leitend mit dem Hauptkontakt (1, 6) verbunden ist, während die anderen isoliert gegen den Hauptkontakt an-1. Contact arrangement, especially for circuit breakers with upstream and main contacts, characterized in that a plurality of pre-contacts (2 to 4 and 7 to 9) are arranged on each main contact (1, 6), one of which each (4, 7) conductively with the Main contact (1, 6) is connected, while the others are isolated from the main contact. 609 770/307609 770/307 geordnet und mit den Vorkontakten des Gegenkontaktes elektrisch in Reihe geschaltet sind,ordered and with the previous contacts of the counter contact are electrically connected in series, 2. Kontaktanordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Vorkontakte (2 bis 4 und 7 bis 9) auf dem Hauptkontakt (1, 6) räumlich nebeneinander angeordnet sind.2. Contact arrangement according to claim 1, characterized in that the pre-contacts (2 to 4 and 7 to 9) are arranged spatially next to one another on the main contact (1, 6). 3. Kontaktanordnung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß auf jedem Hauptkontakt (1, 6) eine ungerade Anzahl von Vorkontakten (2 bis 4 und 7 bis 9) angeordnet ist.3. Contact arrangement according to claim 1 and 2, characterized in that on each main contact (1, 6) an odd number of pre-contacts (2 to 4 and 7 to 9) is arranged. 4. Kontaktanordnung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß jeder Vorkontakt (2 bis 4 und 7 bis 9) in einer durch Lichtbogentrennwände (11) gebildeten Kammer untergebracht ist.4. Contact arrangement according to claim 1 to 3, characterized in that each pre-contact (2 to 4 and 7 to 9) housed in a chamber formed by arc partitions (11) is. In Betracht gezogene Druckschriften,: Deutsche Patentschriften Nr. 547 270, 584 991; österreichische Patentschrift Nr. 117 385; britische Patentschrift Nr. 745 830.Considered publications: German Patent Nos. 547 270, 584 991; Austrian Patent No. 117,385; British Patent No. 745 830. Hierzu 1 Blatt Zeichnungen1 sheet of drawings © £09 π«/3(ϊ7 2.57© £ 09 π «/ 3 (ϊ7 2.57
DEV7384A 1954-06-14 1954-06-14 Contact arrangement, especially for circuit breakers with upstream and main contacts Pending DE1002439B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV7384A DE1002439B (en) 1954-06-14 1954-06-14 Contact arrangement, especially for circuit breakers with upstream and main contacts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV7384A DE1002439B (en) 1954-06-14 1954-06-14 Contact arrangement, especially for circuit breakers with upstream and main contacts

Publications (1)

Publication Number Publication Date
DE1002439B true DE1002439B (en) 1957-02-14

Family

ID=7571915

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV7384A Pending DE1002439B (en) 1954-06-14 1954-06-14 Contact arrangement, especially for circuit breakers with upstream and main contacts

Country Status (1)

Country Link
DE (1) DE1002439B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0727805A3 (en) * 1995-02-16 1999-07-21 Siemens Aktiengesellschaft Contact lever unit for low voltage circuit breaker
DE102006016273A1 (en) * 2006-03-31 2007-10-04 Siemens Ag Low-voltage circuit-breaker for e.g. electrical network, has three contact pairs connected in series for each phase and released simultaneously during short- circuit, where contact pairs comprise contacts arranged at contact arms

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT117385B (en) * 1927-11-24 1930-04-25 Siemens Ag Arrangement for switching off services in extra-high voltage networks.
DE547270C (en) * 1927-07-14 1932-03-22 Siemens Schuckertwerke Akt Ges Method for switching on and off, in particular high-power circuits, by means of switches with switching contacts in a vacuum
DE584991C (en) * 1930-11-15 1933-10-03 Aeg Switch for normal operating voltages, in particular installation rotary switches, with several interruption points under instantaneous switching effect on the rotatable switch body in one or each of the switching lines leading from the mains to the consumer
GB745830A (en) * 1951-12-20 1956-03-07 Hoechst Ag Process for producing on acetyl cellulose and linear polyamide and polyurethane fibres dyeings fast to cross-dyeing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE547270C (en) * 1927-07-14 1932-03-22 Siemens Schuckertwerke Akt Ges Method for switching on and off, in particular high-power circuits, by means of switches with switching contacts in a vacuum
AT117385B (en) * 1927-11-24 1930-04-25 Siemens Ag Arrangement for switching off services in extra-high voltage networks.
DE584991C (en) * 1930-11-15 1933-10-03 Aeg Switch for normal operating voltages, in particular installation rotary switches, with several interruption points under instantaneous switching effect on the rotatable switch body in one or each of the switching lines leading from the mains to the consumer
GB745830A (en) * 1951-12-20 1956-03-07 Hoechst Ag Process for producing on acetyl cellulose and linear polyamide and polyurethane fibres dyeings fast to cross-dyeing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0727805A3 (en) * 1995-02-16 1999-07-21 Siemens Aktiengesellschaft Contact lever unit for low voltage circuit breaker
DE102006016273A1 (en) * 2006-03-31 2007-10-04 Siemens Ag Low-voltage circuit-breaker for e.g. electrical network, has three contact pairs connected in series for each phase and released simultaneously during short- circuit, where contact pairs comprise contacts arranged at contact arms

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