DE3027598A1 - Compact breaker switch with small operating stoke - has line of contact between contact blades aligned at angle to direction of stroke - Google Patents

Compact breaker switch with small operating stoke - has line of contact between contact blades aligned at angle to direction of stroke

Info

Publication number
DE3027598A1
DE3027598A1 DE19803027598 DE3027598A DE3027598A1 DE 3027598 A1 DE3027598 A1 DE 3027598A1 DE 19803027598 DE19803027598 DE 19803027598 DE 3027598 A DE3027598 A DE 3027598A DE 3027598 A1 DE3027598 A1 DE 3027598A1
Authority
DE
Germany
Prior art keywords
contact
double
knife
angle
line
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.)
Withdrawn
Application number
DE19803027598
Other languages
German (de)
Inventor
Heinz 8450 Amberg Homberg
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 DE19803027598 priority Critical patent/DE3027598A1/en
Publication of DE3027598A1 publication Critical patent/DE3027598A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/12Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/42Knife-and-clip contacts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/12Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/365Bridging contacts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02Details
    • H01H31/12Adaptation for built-in fuse

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

The switch has a fixed contact blade or lyra contact and a cooperating sliding single or double contact blade (9,10). The line of contact (12,13,14) between the fixed contact part (2,3) and the single or double contact blade (9,10) runs at an angle of 45 degrees to direction of movement of the latter. Pref. the breaker housing has two fixed contact blades (2,3) respectively connected to an external lyra contact (4) for receiving a LV fuse (5) and to a current rail (6). A sliding rod (7) has an insulator (8) at its end supporting a double contact blade (9,10) acted on by contact press springs (11). The double contact blades (9,10) may be divided longitudinally. The switch is compact and has a small operating stroke.

Description

TrennschalterDisconnector

Die Erfindung bezieht sich auf einen Trennschalter mit ortsfesten Messer- oder Lyrakontaktteilen und diese verbindenden,verschiebbar geführten Doppel- oder Einfachmesser.The invention relates to a circuit breaker with stationary Knife or lyre contact parts and these connecting, displaceably guided double or single knife.

Bei einem bekannten Sicherungstrennschalter der obengenannten Art (DE-GM 1 903 072) liegen die ersten Berührungslinien zwischen den Enden der ortsfesten Lyrakontaktteile und der Messer, im vorliegenden Fall der Kontaktmesser der NH-Sicherung, quer zur Bewegungsrichtung der parallel verschiebbaren Sicherung. Eine derartige Ausbildung eines Trennschalters bedingt ein relativ großes Bauvolumen, da der Abstand zwischen Trennmesser und Ende der Lyra als Spannungsabstand voll zwischen der Kante der Lyra und dem unteren Ende des Messers vorhanden sein muß.In a known fuse disconnector of the type mentioned above (DE-GM 1 903 072) are the first lines of contact between the ends of the stationary Lyra contact parts and the knife, in this case the contact knife of the NH fuse, at right angles to the direction of movement of the parallel sliding fuse. Such a one Formation of a disconnector requires a relatively large volume, since the distance between the separating knife and the end of the lyre as a tension spacing full between the edge the lyre and the lower end of the knife must be present.

Der Erfindung liegt die Aufgabe zugrunde,einen Trennschalter der obengenannten Art zu schaffen, der mit einem kleinen Bauvolumen bei geringem Hub der verschiebbaren Doppel- oder Einfachmesser auskommen kann. Diese Aufgabe wird bei einem Trennschalter der obengenannten Art auf einfache Weise dadurch gelöst, daß die Berührungslinien der ortsfesten Kontaktteile und der Doppel-oder Einfachmesser untereinander in einem Winkel von ca. 450 zur Bewegungsrichtung der Messer verlaufen. Zur Erhöhung der Kurzschlußfestigkeit des Trennschalters ist es bei der erfindungsgemäßen Trennschalterausführung vorteilhaft, wenn die Messer oder Doppelmesser entlang mindestens einer ihrer Längsachsen geteilt sind. Diese Ausführungsform ist möglich, da durch die schrägliegenden Berührungsflächen die geteilten Doppelmesser praktisch gleichzeitig zur Anlage an den Gegenkontakten kommen.The invention has for its object to provide a circuit breaker of the above Kind of creating the sliding one with a small volume with a small stroke Double or single knife can get by. This task is performed with a circuit breaker the above type solved in a simple manner that the lines of contact the stationary contact parts and the double or single knife with each other in one There are angles of approx. 450 to the direction of movement of the knives. To increase the It is short-circuit resistance of the disconnector in the disconnector design according to the invention advantageous if the knife or double knife along at least one of their longitudinal axes are divided. These Embodiment is possible because of the inclined The divided double knives are practically at the same time on the contact surfaces with the system the mating contacts come.

Um die Breite des Schalters möglichst gering zu halten ist es vorteilhaft, wenn die Doppelmesser im Bereich der Kontaktgabe gekröpft sind, da dann die Andruckfedern für die Doppelmesser praktisch ohne zusätzlichen Raumbedarf untergebracht werden können. Um weiterhin bei Verwendung des Trennschalters als Lasttrennschalter mit einem geringen Bauvolumen auskommen zu können ist es vorteilhaft, wenn die einen der Berührungsflächen zwischen ortsfesten Messer- oder Lyrakontaktteilen und Doppel-oder Einfachmesser eher voneinander trennbar sind als die anderen, da somit lediglich auf einer Trennstelle eine Lichtbogenlöschkammer vorzusehen ist.In order to keep the width of the switch as small as possible, it is advantageous to if the double knives are cranked in the contact area, then the pressure springs for the double knives can be accommodated with practically no additional space requirement can. To continue using the disconnector as a switch disconnector with To be able to get by with a small volume, it is advantageous if some the contact surfaces between stationary knife or lyre contact parts and double or Single knives are more easily separable from each other than the others, since only an arc extinguishing chamber is to be provided at a separation point.

Anhand der Zeichnung wird ein Ausführungsbeispiel gemäß der Erfindung beschrieben.An exemplary embodiment according to the invention is illustrated with the aid of the drawing described.

Es zeigen Fig. 1 eine Seitenansicht, zum Teil im Schnitt, auf einen unter ein dreipoliges Sicherungsunterteil unterbauten Trennschalter, Fig. 2 die Vorderansicht, ebenfalls zum Teil im Schnitt, auf den Schalter nach Fig. 1.1 shows a side view, partly in section, of one disconnector built under a three-pole fuse base, Fig. 2 the Front view, also partly in section, of the switch according to FIG. 1.

An dem Gehäuse 1 des Trennschalters sind die ortsfesten Messerkontaktteile 2 und 3 befestigt, wobei das ortsfeste Messerkontaktteil 2 mit außenliegenden Lyrakontakten 4 in Verbindung steht, mit denen eine Niederspannungs-Hochleistungs-Sicherung 5 verbunden ist. Der ortsfeste Messerkontaktteil 3 steht mit einer Stromschiene 6 in Verbindung, die einerseits der Zu- und andererseits der Ableitung für den Kombinationsschalter dient. In dem Gehäuse verschiebbar geführt ist eine Schubstange 7, an der über Isolierteile 8 die Doppelmesser 9 und 10 unter Zuhilfenahme von Kontaktdruck- federn 11 gehalten sind. Wie insbesondere aus Fig. 1 zu ersehen ist, sind die ortsfesten Messerkontaktteile 2 und 3 sowie die Doppelmesser 9 und 10 schräg geschnitten, so daß sich Berührungslinien 12, 13, 14 zwischen den ortsfesten Messerkontaktteilen 2, 3 und den Doppelmessern 9, 10 beim Bewegen der Schubstange 7 in Pfeilrichtung ergeben. Es ist auch ersichtlich, daß die Doppelmesser 9 und 10 praktisch gleichzeitig zur Anlage an den Berührungslinien 12 der ortsfesten Messerkontaktteile 2, 3 kommen. Nach Weiterbewegung der Schubstange 7 in Pfeilrichtung gleiten die Doppelmesser dann unter Zusammendrücken der Kontaktdruckfedern 11 auf die Messerkontaktteile 2 und 3 flächenhaft auf. Der Uberlappungsbereich ist im oberen Teil am Messerkontaktteil 2 gestrichelt dargestellt. Die Lage der Doppelmesser 13, 14 in bezug auf das ortsfeste Messerkontaktteil 3 ist so bestimmt, daß diese Trennstelle eher öffnet als die Trennstelle zwischen den ortsfesten Messerkontaktteilen 2 und den Doppelmessern 9, 10. Somit ist nur eine Lichtbogenlöschkammer 15 im Trennschalter erforderlich, um diesen als Lastschalter zu ertüchtigen. Durch die schräge Lage der BerUhrungslinienist der Hub der Schubstange relativ klein; denn die Längsunterkante des Doppelmessers 9 liegt praktisch mit der Längsoberkante der ortsfesten Messerkontaktteile 2 und 3 in einer Linie, wohingegen bei üblicher Ausführung hier zusätzlich der Spannungsabstand zu addieren wäre, d.h. die Schubstange 7 müßte um diesen Betrag mehr bewegt werden.The stationary blade contact parts are on the housing 1 of the disconnector 2 and 3 attached, the stationary blade contact part 2 with external lyre contacts 4 is connected, with which a low-voltage high-performance fuse 5 connected is. The stationary blade contact part 3 is connected to a busbar 6 in connection, on the one hand the supply and on the other hand the discharge for the combination switch serves. Slidably guided in the housing is a push rod 7 on which insulating parts 8 the double knives 9 and 10 with the help of contact pressure feathers 11 are held. As can be seen in particular from FIG. 1, the are stationary Blade contact parts 2 and 3 and the double blades 9 and 10 cut at an angle, see above that there are lines of contact 12, 13, 14 between the stationary blade contact parts 2, 3 and the double knives 9, 10 when moving the push rod 7 in the direction of the arrow result. It can also be seen that the double knives 9 and 10 practically simultaneously come to rest on the contact lines 12 of the stationary blade contact parts 2, 3. After moving the push rod 7 further in the direction of the arrow, the double knives slide then while compressing the contact compression springs 11 on the blade contact parts 2 and 3 over a large area. The overlap area is in the upper part on the blade contact part 2 shown in dashed lines. The position of the double knives 13, 14 in relation to the stationary Blade contact part 3 is determined so that this separation point opens sooner than the separation point between the stationary blade contact parts 2 and the double blades 9, 10. Thus only one arc extinguishing chamber 15 is required in the circuit breaker to use this as To upgrade load switches. Due to the inclined position of the contact lines, the Stroke of the push rod relatively small; because the longitudinal lower edge of the double knife 9 is practically with the longitudinal upper edge of the stationary blade contact parts 2 and 3 in one line, whereas with the usual design the voltage distance is also shown here would have to be added, i.e. the push rod 7 would have to be moved more by this amount.

4 Patentansprüche 2 Figuren4 claims 2 figures

Claims (4)

PatentansPrüche 1 Trennschalter mit ortsfesten Messer- oder Lyrakontaktteilen und diese verbindenden, verschiebbar geführten Doppel- oder Einfachmesser, d a d u r c h g e -k e n n z e i c h n e t , daß die Berührungslinien (12, 13, 14) der ortsfesten Kontaktteile (2, 3) und der Doppel- oder Einfachmesser (9, 10) untereinander in einem Winkel von ca. 450 zur Bewegungsrichtung der Messer (9, 10) verlaufen.Claims 1 Disconnector with stationary knife or lyre contact parts and these connecting, displaceably guided double or single knives, d a d u r c h g e -k e n n n z e i c h n e t that the contact lines (12, 13, 14) of the stationary contact parts (2, 3) and the double or single knife (9, 10) with each other run at an angle of approx. 450 to the direction of movement of the knives (9, 10). 2. Trennschalter nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß die Messer oder Doppelmesser (9, 10) entlang mindestens einer ihrer Längsachsen geteilt sind.2. Disconnector according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the knife or double knife (9, 10) along at least one of them Long axes are divided. 3. Trennschalter nach Anspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t , daß die Doppelmesser (9, 10) im Bereich der Kontaktgabe gekröpft sind.3. Disconnector according to claim 1 or 2, d a d u r c h g e k e n n z e i c h n e t that the double knives (9, 10) cranked in the area of contact are. 4. Trennschalter nach Anspruch 1, 2 oder 3, d a -d u r c h g e k e n n z e i c h n e"t , daß die einen der Berührungslinien zwischen ortsfesten Messer-oder Lyrakontaktteilen (2, 3) und Doppel- oder Einfachmesser (9, 10) eher voneinander trennbar sind als die anderen.4. Disconnector according to claim 1, 2 or 3, d a -d u r c h g e k e It is not noted that one of the lines of contact between stationary knife or Lyra contact parts (2, 3) and double or single knives (9, 10) rather from each other are separable than the others.
DE19803027598 1980-07-21 1980-07-21 Compact breaker switch with small operating stoke - has line of contact between contact blades aligned at angle to direction of stroke Withdrawn DE3027598A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803027598 DE3027598A1 (en) 1980-07-21 1980-07-21 Compact breaker switch with small operating stoke - has line of contact between contact blades aligned at angle to direction of stroke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803027598 DE3027598A1 (en) 1980-07-21 1980-07-21 Compact breaker switch with small operating stoke - has line of contact between contact blades aligned at angle to direction of stroke

Publications (1)

Publication Number Publication Date
DE3027598A1 true DE3027598A1 (en) 1982-02-18

Family

ID=6107727

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803027598 Withdrawn DE3027598A1 (en) 1980-07-21 1980-07-21 Compact breaker switch with small operating stoke - has line of contact between contact blades aligned at angle to direction of stroke

Country Status (1)

Country Link
DE (1) DE3027598A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530373A1 (en) * 1982-07-13 1984-01-20 Merlin Gerin LOW VOLTAGE, HIGH ELECTRODYNAMIC ELECTRO-VOLTAGE MULTIPOLAR ELECTRIC SWITCH
FR2638017A1 (en) * 1988-10-17 1990-04-20 Merlin Gerin Low-voltage multipole electric switch for high ratings
FR2774506A1 (en) * 1998-02-05 1999-08-06 Cahors App Elec Low voltage distribution network protection mechanism
FR2793963A1 (en) * 1999-05-20 2000-11-24 Schneider Electric Ind Sa Multiple-plate circuit connecting bridge for LV modular switchboard, comprises set of parallel, paired, double-jawed plates gripping contact surfaces to be connected

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530373A1 (en) * 1982-07-13 1984-01-20 Merlin Gerin LOW VOLTAGE, HIGH ELECTRODYNAMIC ELECTRO-VOLTAGE MULTIPOLAR ELECTRIC SWITCH
EP0100699A1 (en) * 1982-07-13 1984-02-15 Merlin Gerin Multi-phase electric low-tension switch with high electrodynamic strength
FR2638017A1 (en) * 1988-10-17 1990-04-20 Merlin Gerin Low-voltage multipole electric switch for high ratings
FR2774506A1 (en) * 1998-02-05 1999-08-06 Cahors App Elec Low voltage distribution network protection mechanism
FR2793963A1 (en) * 1999-05-20 2000-11-24 Schneider Electric Ind Sa Multiple-plate circuit connecting bridge for LV modular switchboard, comprises set of parallel, paired, double-jawed plates gripping contact surfaces to be connected

Similar Documents

Publication Publication Date Title
DE3884557T2 (en) Switch-off arrangement for multi-phase circuit breakers with rotatable double contact.
DE2839914A1 (en) DISCONNECTOR WITH A MAIN AND Tear-off contact
DE611040C (en) Switching device for cable distribution system with manually disconnectable, in their longitudinal direction arranged vertically one above the other, lever-like articulated on a base plate, belonging to a circuit fuses
DE4305746C2 (en) Load switch arrangement and housing for receiving this load switch arrangement
DE7426189U (en) Auxiliary switch attachment for line circuit breaker
DE3027598A1 (en) Compact breaker switch with small operating stoke - has line of contact between contact blades aligned at angle to direction of stroke
EP0916148A1 (en) Switching chamber housing for a power switch and housing modules for producing such a switching chamber housing
DE2525082C3 (en) Switch disconnector
DE4326401A1 (en) Arrangement consisting of a circuit breaker part and a fuse part
DE2734395A1 (en) DEVICE FOR CURRENT LIMITING
DE2411270C3 (en) Electrical contact arrangement for high voltage disconnectors or earthing switches
DE2312900C3 (en) Disconnector with devices for momentary disconnection of an electrical power
DE3810977C2 (en) Current-limiting switching device with electrodynamically opening switching elements
DE1159069B (en) Electric switch with swiveling double cutting blades
DE2737021C3 (en) Isolation switch for low voltage
DE3307401C2 (en)
DE1206053B (en) Multi-pole electrical switch of slim design
EP0110005B1 (en) Contact arrangement for a pantograph disconnecting switch
DE19830231B4 (en) Rated current contact arrangement of a circuit breaker
DE3332684C2 (en)
DE1790189A1 (en) Space-saving switch cell with pull-out switch unit
DE2843482C2 (en)
DE1590167C (en) High-current disconnector for installation in busbars
DE3105409A1 (en) Interruptor switch (circuit breaker) having a switching arm consisting of two switching-arm struts
DE3307606A1 (en) Contact system for a single-column pantograph disconnector

Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee