EP0532513B1 - Contact assembly for a vacuum switch tube - Google Patents
Contact assembly for a vacuum switch tube Download PDFInfo
- Publication number
- EP0532513B1 EP0532513B1 EP91908044A EP91908044A EP0532513B1 EP 0532513 B1 EP0532513 B1 EP 0532513B1 EP 91908044 A EP91908044 A EP 91908044A EP 91908044 A EP91908044 A EP 91908044A EP 0532513 B1 EP0532513 B1 EP 0532513B1
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- EP
- European Patent Office
- Prior art keywords
- contact
- section
- slot
- contact electrode
- electrode
- 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 - Lifetime
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- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
- H01H33/6643—Contacts; Arc-extinguishing means, e.g. arcing rings having disc-shaped contacts subdivided in petal-like segments, e.g. by helical grooves
Definitions
- the invention is in the field of vacuum interrupters and is to be used in the structural design of a contact arrangement which consists of two axially opposed plate-like contact electrodes, each contact electrode having slots which run inwards from the outer circumference.
- a known contact arrangement for a vacuum interrupter consists of two axially opposite plate-like contact electrodes, a circular recess being provided in the center of the contact surface of each contact electrode and the outer region of the contact surface being conical. Each contact electrode is held by a contact bolt. Furthermore, four slots are provided in each contact electrode, which are evenly distributed around the circumference and penetrate axially through the contact electrode and extend spirally inwards from the outer circumference of the contact electrode. These slots end in the area of the annular contact surface at a certain distance from the circular recess.
- each contact electrode In another contact arrangement for a vacuum interrupter, each contact electrode consists of a button-like contact element and a plate-like quenching electrode surrounding the contact element. The contact electrode protrudes beyond the surface of the erasing electrode. To accelerate the arc a slit is also provided here; each slot has two rectilinear sections, of which the first section runs alone in the quenching electrode and touches the contact electrode, while the second section runs both in the quenching electrode and in the contact electrode and deviates from a radial direction (DE-A-33 03 659).
- the slots are only provided in the quenching electrode and each consist of a slot running tangentially to the contact element and a bore arranged at the end of each slot (DE-C-23 63 044).
- the invention has for its object to provide the contact arrangement with such an effective and easy to produce slot that with an outer diameter of the contact electrodes of a maximum of 65 mm currents of more than 20 n / a can be switched.
- each slot of the two plate-like contact electrodes consists of two sections, of which the first section runs parallel to a tangent to the circumference of the circular recess in the contact surface, the radial distance of this first section from the center of the circular recess is greater than the corresponding radial distance of said tangent, and of which the second section consists of a hole which breaks through the contact surface between the first section and the circular recess in the region of the inner end of the first section.
- the measures dealt with in subclaims 2 to 8 are provided to optimize the contact geometry. On the one hand, these aim for the most effective arc drive and, on the other hand, for the largest possible contact area, in particular if the contact area consists of an annular area which is surrounded by an outer, conical or conical area to improve the extinguishing effect. It is essential that the first, rectilinear section of each slot extends into the actual contact area.
- the slit of one contact electrode is arranged mirror-inverted to the slit of the other contact electrode and that the first sections of the slits of both contact electrodes are circumferentially offset by 45 ° to one another, as is known per se DE-C-23 63 044 is known.
- each contact electrode it is also advisable to provide the power supply bolt of each contact electrode with a constriction in the area immediately adjacent to the contact electrode, as is known per se from DE-A-33 20 901. In the present case, it is advisable to arrange a disc-shaped vapor barrier on the shoulder of this constriction to prevent vapor deposition on the interior of the tube.
- FIGS. 1 to 4 Exemplary embodiments of the new contact arrangement are shown in FIGS. 1 to 4. It shows Figure 1 shows the basic structure of the new contact arrangement, Figures 2 and 3, the possible configurations of the slot and Figure 4 shows a concrete embodiment for the slotting.
- the contact arrangement for a vacuum interrupter consists of two axially opposed contacts 1 and 2, each contact having a current supply pin 3 and a contact electrode 4.
- Each contact electrode 4 is provided with a circular recess 5 in the middle of the contact surface.
- each power supply pin 3 has a constriction 6 in the area immediately adjacent to the contact electrode 4.
- a disc-shaped vapor barrier 7 is placed on the shoulder of the constriction.
- each slot section 10 axially penetrating the contact electrode are worked into each contact electrode 4 and run parallel to a tangent placed on the circular recess 5 or on the outer circumference of the contact electrode.
- the four slot sections are each offset by 90 ° to one another and have a distance a from the center of the contact electrode of approximately 0.25 to 0.4 times the outer diameter D of the contact electrode.
- the width of each slot is about 2 to 4 mm.
- the distance between the end of each first section and one perpendicular to this first slot section is at the outer circumference of the Tangent contact electrode is 0.6 to 0.7 times the outer diameter D of the contact electrode.
- a second slot section in the form of a bore 11 adjoins each rectilinear slot section 10 in the region between the inner end of the slot section and the annular recess 5.
- This bore can be arranged so that it is located at the point at which there is the smallest distance between the first section 10 of the slot and the circular recess 5.
- the diameter of the bore 12 is chosen so that the inner edge of the slot touches the bore 12, while the diameter of the bore 13 is selected so that the outer edge of the slot 10 touches the bore.
- the bore can also be arranged in the region which lies between the end of the first section of the slot and the narrowest point between the first section and the circular recess, as is the case for the bore 11. In this case, the diameter of the bore 11 is chosen so that the outer edge of the slot 10 touches the bore 11.
- FIG. 4 shows an embodiment in which the second section of each slot consists of a bore 13 which is affected by the outer edge of the respective first slot section 10 and is arranged at the narrowest point between the first section 10 and the annular recess 5. Furthermore, the contact surface on which an arc can ignite when the contact arrangement is switched off is narrowed in that the contact electrode has an outer annular region 8 which, according to the known contact arrangement according to DE-B-28 22 510, runs conically outwards, for example under a Angle of about 15 °.
- the outer diameter d2 of the actual contact area is about 2/3 of the outer diameter D of the contact electrode, while the diameter d1 of the annular recess at about 0.26 to 0.28 times the outer diameter D of the contact electrode.
- the straight-line slot sections 10 have a distance a (see FIG. 2) from the center of the contact electrode of 0.25 times the outer diameter D, their distance 1 (see FIG. 2) is 0.6 x D.
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
Description
Die Erfindung liegt auf dem Gebiet der Vakuumschaltröhren und ist bei der konstruktiven Ausgestaltung einer Kontaktanordnung anzuwenden, die aus zwei einander axial gegenüberstehenden plattenartigen Kontaktelektroden besteht, wobei jede Kontaktelektrode Schlitze aufweist, die vom äußeren Umfang nach innen verlaufen.The invention is in the field of vacuum interrupters and is to be used in the structural design of a contact arrangement which consists of two axially opposed plate-like contact electrodes, each contact electrode having slots which run inwards from the outer circumference.
Eine bekannte Kontaktanordnung für eine Vakuumschaltröhre besteht aus zwei einander axial gegenüberstehenden plattenartigen Kontaktelektroden, wobei in der Mitte der Kontaktfläche jeder Kontaktelektrode eine kreisförmige Ausnehmung vorgesehen ist und der äußere Bereich der Kontaktfläche konisch gestaltet ist. Jede Kontaktelektrode wird von einem Kontaktbolzen gehalten. Weiterhin sind in jeder Kontaktelektrode vier gleichmäßig am Umfang verteilt angeordnete Schlitze vorgesehen, welche die Kontaktelektrode axial durchsetzen und vom äußeren Umfang der Kontaktelektrode spiralförmig nach innen verlaufen. Diese Schlitze enden im Bereich der ringförmigen Kontaktfläche in einem gewissen Abstand zur kreisförmigen Ausnehmung. Bei einer derartigen Ausgestaltung der Kontaktanordnung wird bei einem Schaltvorgang der Lichtbogen vom mittleren Bereich der Kontaktanordnung zum Randbereich hin beschleunigt und damit die Verweilzeit des Lichtbogens im mittleren Bereich verkürzt. Weiterhin wird der Abbrand der Kontaktelektroden wesentlich verringert und damit die Lebensdauer der Vakuumschaltröhre erhöht (DE-B-28 22 510).A known contact arrangement for a vacuum interrupter consists of two axially opposite plate-like contact electrodes, a circular recess being provided in the center of the contact surface of each contact electrode and the outer region of the contact surface being conical. Each contact electrode is held by a contact bolt. Furthermore, four slots are provided in each contact electrode, which are evenly distributed around the circumference and penetrate axially through the contact electrode and extend spirally inwards from the outer circumference of the contact electrode. These slots end in the area of the annular contact surface at a certain distance from the circular recess. With such a configuration of the contact arrangement, the arc is accelerated from the central region of the contact arrangement to the edge region during a switching operation, and thus the duration of the arc in the central region is shortened. Furthermore, the erosion of the contact electrodes is significantly reduced and thus the life of the vacuum interrupter is increased (DE-B-28 22 510).
Bei einer anderen Kontaktanordnung für eine Vakuumschaltröhre besteht jede Kontaktelektrode aus einem knopfartigen Kontaktelement und einer das Kontaktelement umgebenden plattenartigen Löschelektrode. Die Kontaktelektrode ragt dabei über die Oberfläche der Löschelektrode hinaus. Zur Beschleunigung des Lichtbogens ist auch hier eine Schlitzung vorgesehen; jeder Schlitz weist zwei geradlinig verlaufende Abschnitte aus, von denen der erste Abschnitt allein in der Löschelektrode verläuft und die Kontaktelektrode tangiert, während der zweite Abschnitt sowohl in der Löschelektrode als auch in der Kontaktelektrode verläuft und von einer radialen Richtung abweicht (DE-A-33 03 659). - Bei einer ähnlich aufgebauten Kontaktanordnung sind die Schlitze nur in der Löschelektrode vorgesehen und bestehen jeweils aus einem tangential zum Kontaktelement verlaufenden Schlitz und einer am Ende jedes Schlitzes angeordneten Bohrung (DE-C-23 63 044).In another contact arrangement for a vacuum interrupter, each contact electrode consists of a button-like contact element and a plate-like quenching electrode surrounding the contact element. The contact electrode protrudes beyond the surface of the erasing electrode. To accelerate the arc a slit is also provided here; each slot has two rectilinear sections, of which the first section runs alone in the quenching electrode and touches the contact electrode, while the second section runs both in the quenching electrode and in the contact electrode and deviates from a radial direction (DE-A-33 03 659). - In a similarly constructed contact arrangement, the slots are only provided in the quenching electrode and each consist of a slot running tangentially to the contact element and a bore arranged at the end of each slot (DE-C-23 63 044).
Ausgehend von einer Kontaktanordnung für eine Vakuumschaltröhre mit den Merkmalen des Oberbegriffes des Patentanspruches 1 liegt der Erfindung die Aufgabe zugrunde, die Kontaktanordnung mit einer so wirksamen und einfach herstellbaren Schlitzung zu versehen, daß bei einem Außendurchmesser der Kontaktelektroden von maximal 65 mm Ströme von mehr als 20 kA geschaltet werden können.Starting from a contact arrangement for a vacuum interrupter with the features of the preamble of
Zur Lösung dieser Aufgabe ist gemäß der Erfindung vorgesehen, daß jeder Schlitz der beiden plattenartigen Kontaktelektroden aus zwei Abschnitten besteht, von denen der erste Abschnitt parallel zu einer an den Umfang der kreisförmigen Ausnehmung in der Kontaktfläche gelegten Tangente verläuft, wobei der radiale Abstand dieses ersten Abschnittes vom Mittelpunkt der kreisförmigen Ausnehmung größer ist als der entsprechende radiale Abstand der genannten Tangente,und von denen der zweite Abschnitt aus einer Bohrung besteht, die im Bereich des inneren Endes des ersten Abschnittes die Kontaktfläche zwischen dem ersten Abschnitt und der kreisförmigen Ausnehmung durchbricht.To achieve this object, it is provided according to the invention that each slot of the two plate-like contact electrodes consists of two sections, of which the first section runs parallel to a tangent to the circumference of the circular recess in the contact surface, the radial distance of this first section from the center of the circular recess is greater than the corresponding radial distance of said tangent, and of which the second section consists of a hole which breaks through the contact surface between the first section and the circular recess in the region of the inner end of the first section.
Bei einer derartigen Ausgestaltung der Kontaktelektroden werden im Bereich der Kontaktfläche Wirbelströme vollständig unterdrückt, die sich anderenfalls der Ausbildung eines genügend starken, bogenantreibenden Radialmagnetfeldes entgegenstellen würden. Demzufolge läßt sich mit der gemäß der Erfindung vorgesehenen Ausgestaltung der Kontaktelektroden eine Leistungssteigerung auf etwa 40 kA erreichen. Dies ist auch noch bei einem Außendurchmesser der Kontaktelektroden von etwa 60 mm gegeben. Dabei ist hervorzuheben, daß sich die vorgesehene Kontaktgeometrie fertigungstechnisch sehr einfach durch Bohren und geradliniges Fräsen einer einteiligen Kontaktelektrode herstellen läßt.With such a configuration of the contact electrodes, eddy currents are completely suppressed in the area of the contact surface, which eddy currents would otherwise occur would oppose a sufficiently strong, arc-driving radial magnetic field. Accordingly, an increase in performance can be achieved with the configuration of the contact electrodes provided according to the invention reach about 40 kA. This is also the case with an outer diameter of the contact electrodes of approximately 60 mm. It should be emphasized that the contact geometry provided can be produced very easily in terms of production technology by drilling and straight milling of a one-piece contact electrode.
Zur Optimierung der Kontaktgeometrie sind die in den Unteransprüchen 2 bis 8 behandelten Maßnahmen vorgesehen. Diese zielen einerseits auf einen möglichst wirksamen Bogenantrieb und andererseis auf eine möglichst große Kontaktfläche ab, insbesondere dann, wenn die Kontaktfläche aus einem ringförmigen Bereich besteht, der zur Verbesserung der Löschwirkung von einem äußeren, konisch bzw. kegelig verlaufenden Bereich umgeben ist. Wesentlich dabei ist, daß der erste, geradlinig verlaufende Abschnitt jedes Schlitzes in die eigentliche Kontaktfläche hineinreicht.The measures dealt with in
Bezüglich der Anordnung der beiden Kontaktelektroden zueinander ist darauf zu achten, daß die Schlitzung der einen Kontaktelektrode spiegelverkehrt zur Schlitzung der anderen Kontaktelektrode angeordnet ist und daß die ersten Abschnitte der Schlitze beider Kontaktelektroden in Umfangsrichtung um 45 ° versetzt zueinander angeordnet sind, wie es an sich aus der DE-C-23 63 044 bekannt ist.With regard to the arrangement of the two contact electrodes to one another, care must be taken that the slit of one contact electrode is arranged mirror-inverted to the slit of the other contact electrode and that the first sections of the slits of both contact electrodes are circumferentially offset by 45 ° to one another, as is known per se DE-C-23 63 044 is known.
Zur Erzeugung eines wirksamen radialen Magnetfeldes empfiehlt es sich weiterhin, den Stromzuführungsbolzen jeder Kontaktelektrode im unmittelbar an die Kontaktelektrode angrenzenden Bereich mit einer Einschnürung zu versehen, wie es an sich aus der DE-A-33 20 901 bekannt ist. Im vorliegenden Fall empfiehlt es sich, auf die Schulter dieser Einschnürung eine scheibenförmige Dampfsperre zur Verhinderung der Bedampfung des Röhrenhinterraumes anzuordnen.To generate an effective radial magnetic field, it is also advisable to provide the power supply bolt of each contact electrode with a constriction in the area immediately adjacent to the contact electrode, as is known per se from DE-A-33 20 901. In the present case, it is advisable to arrange a disc-shaped vapor barrier on the shoulder of this constriction to prevent vapor deposition on the interior of the tube.
Ausführungsbeispiele der neuen Kontaktanordnung sind in den Figuren 1 bis 4 dargestellt. Dabei zeigt
Figur 1 den grundsätzlichen Aufbau der neuen Kontaktanordnung, die Figuren 2 und 3 die möglichen Ausgestaltungen der Schlitzung und
Figur 4 ein konkretes Ausführungsbeispiel für die Schlitzung.Exemplary embodiments of the new contact arrangement are shown in FIGS. 1 to 4. It shows
Figure 1 shows the basic structure of the new contact arrangement, Figures 2 and 3, the possible configurations of the slot and
Figure 4 shows a concrete embodiment for the slotting.
Gemäß Figur 1 besteht die Kontaktanordnung für eine Vakuumschaltröhre aus zwei einander axial gegenüberstehenden Kontakten 1 und 2, wobei jeder Kontakt einen Stromzuführungsbolzen 3 und eine Kontaktelektrode 4 aufweist. Jede Kontaktelektrode 4 ist in der Mitte der Kontaktfläche mit einer kreisförmigen Ausnehmung 5 versehen. Weiterhin weist jeder Stromzuführungsbolzen 3 im unmittelbar an die Kontaktelektrode 4 angrenzenden Bereich eine Einschnürung 6 auf. Auf die Schulter der Einschnürung ist eine scheibenförmige Dampfsperre 7 aufgesetzt. - Bei einer derartigen Kontaktanordnung handelt es sich um einen sogenannten Radialfeldkontakt, weil mittels der Einschnürung und der weiter unten erläuterten Schlitzung eine Stromführung erzwungen wird, die im Bereich zwischen den beiden Kontaktelektroden 4 zur Ausbildung eines radialen, den Lichtbogen antreibenden Magnetfeldes führt. Die Kontaktelektroden haben einen Außendurchmesser D von etwa 60 mm. Die Einschnürung 6 des Stromzuführungsbolzens wird auf etwa 50 bis 30 % des ursprünglichen Durchmessers vorgenommen.According to Figure 1, the contact arrangement for a vacuum interrupter consists of two axially
Gemäß Figur 2 sind in jede Kontaktelektrode 4 vier die Kontaktelektrode axial durchsetzende Schlitzabschnitte 10 eingearbeitet, die parallel zu einer an die kreisförmige Ausnehmung 5 bzw. an den Außenumfang der Kontaktelektrode gelegten Tangente verlaufen. Die vier Schlitzabschnitte sind um jeweils 90 ° versetzt zueinander angeordnet und haben vom Mittelpunkt der Kontaktelektrode einen Abstand a von etwa dem 0,25 bis 0,4-fachen des Außendurchmessers D der Kontaktelektrode. Die Breite jedes Schlitzes beträgt etwa 2 bis 4 mm. Weiterhin beträgt der Abstand zwischen dem Ende jedes ersten Abschnittes und einer auf diesem ersten Schlitzabschnitt senkrecht stehenden, an den Außenumfang der Kontaktelektrode gelegten Tangente das 0,6 bis 0,7-fache des Außendurchmessers D der Kontaktelektrode beträgt.According to FIG. 2, four
Gemäß Figur 3 schließt sich an jeden geradlinigen Schlitzabschnitt 10 im Bereich zwischen dem inneren Ende des Schlitzabschnittes und der ringförmigen Ausnehmung 5 ein zweiter Schlitzabschnitt in Form einer Bohrung 11 an. Diese Bohrung kann so angeordnet sein, daß sie sich an derjenigen Stelle befindet, an der zwischen dem ersten Abschnitt 10 des Schlitzes und der kreisförmigen Ausnehmung 5 der geringste Abstand besteht. Dies ist gemäß Figur 3 für die Bohrungen 12 und 13 der Fall. Dabei ist der Durchmesser der Bohrung 12 so gewählt, daß die Innenkante des Schlitzes die Bohrung 12 tangiert, während der Durchmesser der Bohrung 13 so gewählt ist, daß die Außenkante des Schlitzes 10 die Bohrung tangiert. Man kann die Bohrung auch in demjenigen Bereich anordnen, der zwischen dem Ende des ersten Abschnittes des Schlitzes und der engsten Stelle zwischen dem ersten Abschnitt und der kreisförmigen Ausnehmung liegt, wie es für die Bohrung 11 der Fall ist. In diesem Fall ist der Durchmesser der Bohrung 11 so gewählt, daß die Außenkante des Schlitzes 10 die Bohrung 11 tangiert.According to FIG. 3, a second slot section in the form of a
Figur 4 zeigt eine Ausführungsform, bei der der zweite Abschnitt jedes Schlitzes aus einer Bohrung 13 besteht, die von der Außenkante des jeweils ersten Schlitzabschnittes 10 tangiert wird und an der engsten Stelle zwischen dem ersten Abschnitt 10 und der ringförmigen Ausnehmung 5 angeordnet ist. Weiterhin ist die Kontaktfläche, auf der beim Ausschalten der Kontaktanordnung ein Lichtbogen zünden kann, dadurch eingeengt, daß die Kontaktelektrode einen äußeren ringförmigen Bereich 8 aufweist, der entsprechend der bekannten Kontaktanordnung nach DE-B-28 22 510 nach außen konisch verläuft, beispielsweise unter einem Winkel von etwa 15 °. Der Außendurchmesser d₂ der eigentlichen Kontaktfläche beträgt dabei etwa 2/3 des Außendurchmessers D der Kontaktelektrode, während der Durchmesser d₁ der ringförmigen Ausnehmung bei etwa dem 0,26 bis 0,28-fachen des Außendurchmessers D der Kontaktelektrode liegt. Die geradlinigen Schlitzabschnitte 10 haben vom Mittelpunkt der Kontaktelektrode einen Abstand a (siehe Fig. 2) vom 0,25-fachen des Außendurchmessers D, ihr Abstand 1 (siehe Fig. 2) beträgt 0,6 x D.FIG. 4 shows an embodiment in which the second section of each slot consists of a
Claims (10)
- Contact arrangement for a vacuum interrupter, consisting of two axially-opposed, plate-type contact electrodes (4), each of which is retained by a power supply stud (3), whereby a circular recess (5) is provided in the centre of the contact area of the respective contact electrode and the respective contact electrode (4) is axially perforated by several slots (10) that are uniformly distributed on the contact electrode (4) and run inwards from the outer periphery of the contact electrode, characterised in that each slot consists of two sections- of which the first section (10) runs parallel to a tangent located at the circumference of the circular recess (5),- whereby the radial distance of this first section (10) from the central point of the circular recess (5) is greater than the corresponding radial distance of said tangent,- and of which the second section consists of an opening (11, 12, 13), which in the region of the inner end of the first section, perforates the contact area between the first section (10) and the circular recess (5).
- Contact arrangement according to Claim 1, characterised in that the openings (12, 13) are arranged at the positions where the distance between the first section (10) of the slot and the circular recess (5) of the contact area is the shortest.
- Contact arrangement according to Claim 1, characterised in that the openings (11, 12, 13) are arranged at the areas which lie between the end of the first section of the slot (10) and the narrowest point between the first section of the slot (10) and the circular recess (5) of the contact area.
- Contact arrangement according to Claim 2 or 3, characterised in that the respective opening (11) makes a tangent with the outer edge of the first slot section (10).
- Contact arrangement according to one of the Claims 1 to 4, characterised in that each plate-type contact (1) has a circular contact area and a circular quenching area (8), whereby the quenching area surrounds the contact area and is of conical shape.
- Contact arrangement according to Claim 5, characterised in that the distance of the first section of each slot (10) from the axis of the contact electrode (4) is less than half the external diameter of the contact area.
- Contact arrangement according to Claim 6, characterised in that the distance of the first section of each slot (10) from the axis of the contact electrode (4) is 0.25 to 0.4-times the external diameter of the contact electrode (4).
- Contact arrangement according to Claim 5, with four slots, characterised in that the distance between the end of the first section of each slot (10) and a tangent located perpendicularly to the slot at the outer periphery of the contact electrode (4) is 0.6 to 0.7-times the diameter of the contact electrode (4).
- Contact arrangement according to one of the Claims 1 to 8, characterised in that the slotting of the one contact electrode (4) is the mirror-image of the slotting of the other contact electrode (4), and that the first sections of the slots (10) of the one contact electrode (4) are offset from the slots of the other contact electrode (4) by 45° in the direction of the circumference.
- Contact arrangement according to Claim 9, characterised in that the power supply studs (3) of each contact electrode (4) have a constriction (6) in the area immediately adjacent to the contact electrode (4), and that a disc-shaped vapour trap (7) is arranged on the shoulder of the constriction.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP90250148 | 1990-06-07 | ||
| EP90250148 | 1990-06-07 | ||
| PCT/DE1991/000337 WO1991019308A1 (en) | 1990-06-07 | 1991-04-22 | Contact assembly for a vacuum switch tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0532513A1 EP0532513A1 (en) | 1993-03-24 |
| EP0532513B1 true EP0532513B1 (en) | 1995-02-08 |
Family
ID=8205232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91908044A Expired - Lifetime EP0532513B1 (en) | 1990-06-07 | 1991-04-22 | Contact assembly for a vacuum switch tube |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0532513B1 (en) |
| DE (1) | DE59104556D1 (en) |
| WO (1) | WO1991019308A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19802893A1 (en) * | 1998-01-21 | 1999-07-22 | Siemens Ag | Low-voltage (LV) vacuum circuit-breaker vacuum interrupter chamber with ring-shaped insulator |
| DE19910148A1 (en) * | 1999-02-26 | 2000-09-14 | Siemens Ag | Vacuum switching chamber with annular insulator |
| DE19934909C1 (en) * | 1999-07-21 | 2001-06-13 | Siemens Ag | Contact arrangement for a vacuum interrupter |
| DE10065091A1 (en) * | 2000-12-21 | 2002-06-27 | Siemens Ag | Contact arrangement for a vacuum interrupter |
| CN109404456A (en) * | 2018-12-24 | 2019-03-01 | 安徽省大富光电科技有限公司 | A kind of diaphragm type spring |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6248969B1 (en) * | 1997-09-19 | 2001-06-19 | Hitachi, Ltd. | Vacuum circuit breaker, and vacuum bulb and vacuum bulb electrode used therefor |
| JP4818530B2 (en) † | 2001-04-19 | 2011-11-16 | 三菱電機株式会社 | Vacuum valve |
| DE50101662D1 (en) † | 2001-08-10 | 2004-04-15 | Abb Schweiz Ag | Arc-protected electrical component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3522399A (en) * | 1968-03-08 | 1970-07-28 | Gen Electric | Vacuum-type circuit interrupter with contacts having particularly shaped circumferentially spaced slots |
| US3809836A (en) * | 1972-12-21 | 1974-05-07 | Gen Electric | Vacuum-type electric circuit interrupter |
| DE2429484A1 (en) * | 1974-06-20 | 1976-01-08 | Siemens Ag | Vacuum cct. breaker contact system - has abutting surfaces of contacts with two parallel slots in mutually angular offset |
| JPS53147270A (en) * | 1977-05-27 | 1978-12-21 | Mitsubishi Electric Corp | Vacuum circuit breaker |
| DE3303659A1 (en) * | 1983-02-03 | 1984-08-16 | Vsesojuznyj elektrotechničeskij institut imeni V.I. Lenina, Moskva | Contact system for a vacuum arc extinguishing chamber |
| DE3320901A1 (en) * | 1983-06-09 | 1984-12-13 | Siemens AG, 1000 Berlin und 8000 München | Contact arrangement for vacuum switches |
-
1991
- 1991-04-22 WO PCT/DE1991/000337 patent/WO1991019308A1/en active IP Right Grant
- 1991-04-22 EP EP91908044A patent/EP0532513B1/en not_active Expired - Lifetime
- 1991-04-22 DE DE59104556T patent/DE59104556D1/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19802893A1 (en) * | 1998-01-21 | 1999-07-22 | Siemens Ag | Low-voltage (LV) vacuum circuit-breaker vacuum interrupter chamber with ring-shaped insulator |
| DE19910148A1 (en) * | 1999-02-26 | 2000-09-14 | Siemens Ag | Vacuum switching chamber with annular insulator |
| DE19910148C2 (en) * | 1999-02-26 | 2001-03-22 | Siemens Ag | Vacuum interrupter with annular isolator |
| DE19934909C1 (en) * | 1999-07-21 | 2001-06-13 | Siemens Ag | Contact arrangement for a vacuum interrupter |
| DE10065091A1 (en) * | 2000-12-21 | 2002-06-27 | Siemens Ag | Contact arrangement for a vacuum interrupter |
| US7041929B2 (en) | 2000-12-21 | 2006-05-09 | Siemens Aktiengesellschaft | Contact arrangement for a vacuum switch tube |
| CN109404456A (en) * | 2018-12-24 | 2019-03-01 | 安徽省大富光电科技有限公司 | A kind of diaphragm type spring |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0532513A1 (en) | 1993-03-24 |
| WO1991019308A1 (en) | 1991-12-12 |
| DE59104556D1 (en) | 1995-03-23 |
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