DE1540679C3

DE1540679C3 - Liquid electrical circuit breaker

Info

Publication number: DE1540679C3
Application number: DE19621540679
Authority: DE
Inventors: Benito Calvino Y Teijeiro; Elior Bergamo Dalpont
Original assignee: Magrini SpA
Current assignee: Magrini SpA
Priority date: 1962-08-28
Filing date: 1962-11-13
Publication date: 1974-04-18
Also published as: DE1540679A1; DE1540679B2

Description

ortsfesten Kontaktes 3 verläßt.stationary contact 3 leaves.

Die Isolierstoffplatten 2, 10, 11 und 12 liegen quer zum Schaltstift 5. Die in den noch zu erläuternden F i g. 2 bis 5 und F i g. 2' bis 5' dargestellten Plattentypen sind so aufeinandergestapelt, daß sich eine bestimmte Aufeinanderfolge von Löschtaschen und Querabflußkanälen ergibt. Die oberste Löschtasche 6 ist an ihrem unteren Ende mit einem Querabflußkanal 8 versehen, indem unterhalb einer Platte 10 vom Typ A eine Platte 11 vom Typ D und eine Platte 12 vom Typ C angeordnet ist. Darunter befindet sich eine zusätzliche Löschtasche 15', die dadurch gebildet wird, daß sich an die Platte 12 vom Typ C eine Platte D und eine weitere Platte vom Typ C anschließen. Die zusätzliche Löschtasche 15' ist somit mit einem eigenen Queraustrittskanal 13' versehen. The insulating plates 2, 10, 11 and 12 are located transversely to the switching pin 5. The in the still to be explained F i g. 2 to 5 and F i g. The plate types shown 2 'to 5' are stacked on top of one another in such a way that a certain sequence of extinguishing pockets and transverse drainage channels results. The uppermost extinguishing pocket 6 is provided at its lower end with a transverse drainage channel 8 by a plate 11 of type D and a plate 12 of type C being arranged below a plate 10 of type A. Underneath there is an additional erase pocket 15 ', which is formed in that a plate D and another plate of type C are connected to plate 12 of type C. The additional extinguishing pocket 15 'is thus provided with its own transverse outlet channel 13'.

Die beiden unterhalb der zusätzlichen Löschtasche 15' liegenden Löschtaschen 7 sind untereinander gleich. Sie sind an ihrer Oberseite durch Platten vom Typ C begrenzt, an die sich in dieser Reihenfolge Platten der Typen D, A, B und C anschließen. Diese Platten sind so ausgerichtet, daß sich an der dem Querabflußkanal 13 abgewandten Seite die Löschtasche 7 in Form eines Hohlraumes bildet. Unterhalb des Querabflußkanales 13 liegt ein Teilbereich 7' der Löschtasche 7. Aus diesem Teilbereich heraus strömt beim Löschen des Lichtbogens Löschmittel unter starker Umlenkung in den darüberliegenden Querabflußkanal. The two extinguishing pockets 7 located below the additional extinguishing pocket 15 'are identical to one another. They are bounded on their upper side by plates of type C, which are followed by plates of types D, A, B and C in this order. These plates are aligned in such a way that the extinguishing pocket 7 is formed in the form of a cavity on the side facing away from the transverse discharge channel 13. Below the transverse discharge channel 13 is a sub-area 7 'of the quenching pocket 7. From this sub-area, when the arc is extinguished, extinguishing agent flows with strong deflection into the cross-discharge channel located above.

Den unteren Abschluß der Löschkammer 1 bilden zwei aus Platten der Typen C und B bestehenden Löschtaschen 15, die keine Querabflußkanäle besitzen. The lower end of the extinguishing chamber 1 is formed by two extinguishing pockets 15 consisting of plates of the types C and B , which do not have any transverse drainage channels.

Im oberen Teil der Löschkammer kann ein Ventil 9 angeordnet sein, welches sich nach jedem Löschvorgang öffnet, um die vom Bogen erzeugten Gase rasch aus der Löschkammer hinausströmen zu lassen. Das Ventil 9 kann sich außerdem öffnen, wennIn the upper part of the extinguishing chamber, a valve 9 can be arranged, which is after each extinguishing process opens to let the gases generated by the arc flow quickly out of the extinguishing chamber. The valve 9 can also open when

ίο der Druck im Innern der Löschtasche. 6 zu hohe und damit gefährliche Werte erreicht.ίο the pressure inside the extinguisher pocket. 6 too high and thus reaching dangerous levels.

Im Bereich der Löschtasche 6 sind mehrere Platten 2 mit großer zentrischer Ausnehmung vorhanden, um den Raum zur Aufnahme des ortsfesten Kon-In the area of the extinguishing pocket 6 there are several plates 2 with a large central recess, around the space to accommodate the stationary con

IS taktes 3 und zur Aufnahme von Löschmittel zu bilden.IS clocks 3 and to take up extinguishing agent form.

Der in den F i g. 2 und 2' dargestellte Plattentyp A besitzt ebenso wie die anderen Plattentypen etwa quadratische Abmessungen. Er ist mit einer exzentrischen kreisrunden Ausnehmung vom Durchmesser Da versehen.The in the F i g. Plate type A shown in FIGS. 2 and 2 ', like the other plate types, has approximately square dimensions. It is provided with an eccentric circular recess of diameter Da .

Der Plattentyp B hat eine zentrische Ausnehmung mit dem Durchmesser Db, der größer ist als der Durcmesser Da. Der Plattentyp C hat eine kleine zentrische Ausnehmung Dc, die etwa dem Durchmesser des Schaltstiftes 5 angepaßt ist. Der Plattentyp D schließlich besitzt eine exzentrische Ausnehmung mit dem Durchmesser Dd und eine radial nach außen gerichtete Durchbrechung L zur Bildung der Quer-The plate type B has a central recess with the diameter Db, which is larger than the diameter Da. The plate type C has a small central recess Dc, which is approximately adapted to the diameter of the switching pin 5. The plate type D finally has an eccentric recess with the diameter Dd and a radially outwardly directed opening L to form the transverse

3<» austrittskanäle 8, 13,13'.3 <»outlet channels 8, 13, 13 '.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 2 Patent Claims: Each hmtemander arranged and not in relation to the direction of the switching pin movement

1. Electric liquid circuit breaker - as in French patent 1 272 157 with a linearly moved switch pin and - next to each other. If so the arrangement one of stacked insulating pieces 5 is made that the switching pin tip when switching off Arcing chamber with at least one arcing point in an extinguishing pocket, the one transverse drainage channel and pocket first arrives in the said sub-area Has partial areas from which the extinguishing agent and only then releases the transverse drainage channel, builds only with strong deflection and after going through a pressure in the extinguisher pocket, which is the case with large ones If the arcing area flows, the cross-discharge io breaking capacities assume impermissibly high values channel can reach, wherein the insulating pieces as can.

Isolierstoffplatten with exclusively central task of the present invention is, the and eccentric bores are formed to reduce the pressure load of the extinguishing chamber of the switchboard and the ters provided with a transverse drainage channel according to the main patent when the extinguishing pocket (or extinguishing pockets) is interrupted in their mit- 15 short-circuit currents . To solve this telbereich an insulating material plate with an eccentric task follow according to the invention, which has the extinguishing pocket hole and the transverse drainage channel the insulating material plates formed with the transverse drainage duct due to the bore eccentricity in such a way that the transverse drainage space is opposite one another and with partial areas from the duct-containing plate being closer to the stationary Contact where the extinguishing agent is only under strong deflection than the sub-areas from which the kung and after flowing through the arc extinguishing agent can only reach with strong deflection and to the area of the transverse discharge channel, the arc area flows through the transverse over or below the transverse discharge channel - can reach drainage channel, containing plate,
net are, according to main patent 1540 678, characterized in such a design of the quenching chamber that the quenching pocket 35 reaches the tip of the switching contact when it is switched off with the arc material on it during (7) with the transverse drainage channel (13) forming the insulating sheet ( A, B, C, D) such successive foot point enters the extinguishing pocket, first in the follow that the transverse drainage channel (13) area of the transverse drainage channel facing the stationary containing plate (D) closer to the stationary contact .

clock (3) is located as the sub-areas (7 '), from 3 ° In an advantageous embodiment of the invention, the extinguishing agent is only provided under strong Umlen- that between the stationary contact and after flowing through the arc and the extinguishing pocket an additional Extinguishing pocket area to reach the cross drainage channel (13) is arranged, which only consists of a plate (B) containing a cross can. Outflow channel forming insulating plate consists. The

2. Liquid circuit breaker after an oil can be removed from this additional extinguishing pocket, the Claim 1, characterized in that between is smaller than the other extinguishing pockets with Querdem Fixed contact (3) and the extinguishing drainage channel, escape faster, resulting in a pocket (7) an additional extinguishing pocket (IS ') is arranged for rapid pressure reduction when extinguishing the light, which only contributes to a transverse arc.

Outflow channel (13 ') forming insulating material plate ( D) 40. The invention is referred to below with reference and would be explained in more detail on the figures of the drawing using a preferred embodiment.

' F i g. 1 shows an axial section through an arcing chamber according to the invention,

45 Fig. 2 and 2 'show in plan view and in transverse

The main patent 1 540 678 relates to an electrical section of a plate type A with an eccentric appearance.

linearly moved switching pin and one from matching- F i g. 3 and 3 'show in plan view and in transverse

Stacked insulating pieces, existing extinguishing cut a plate type B with a large centric

chamber with at least one extinguishing pocket that has a 5 "hole,

Having transverse drainage channel as well as partial areas, from F i g. 4 and 4 'show in plan view and in transverse

which the extinguishing agent only with strong deflection cut a plate type C with a small centric

and, after flowing through the arc region, bore, and

can reach the cross drainage channel. 5 and 5 'show in plan view and in the cross-main patent the insulating pieces are 55 a plate type D with an eccentric hole fabric panels with exclusively centric and eccentric and transverse drainage channels.

tric bores formed with a transverse The arcing chamber 1 consists of a package over-

Extinguishing pocket (or extinguishing stack of insulating material plates 2, 10, 11 and

see) has in its central area an insulating material 12, which are provided with recesses and in the

plate with eccentric hole, the transverse 6 ° interior of the extinguishing chamber 1 extinguishing pockets 6, 7, 15

The river canal lies in the form of the eccentricity of the borehole.

resulting space opposite, and sub-areas, inside the upper extinguishing pocket 6, which is larger from which the extinguishing agent is only under stronger than the extinguishing pockets below, is steering and after the arc has flowed through the stationary contact 3. This is with a Abbereiches can reach the transverse drainage channel, 65 tear contact 4, which protrudes laterally in the longitudinal direction, are arranged above or below the transverse drainage channel. Mistake.

When switching according to the main patent, when the switch is opened, the

after the transverse drainage channels and the said part switch pin 5 down, by the area of the