EP1026710B1 - Switch for use in SF6 gas-insulated medium-voltage switchgear - Google Patents
Switch for use in SF6 gas-insulated medium-voltage switchgear Download PDFInfo
- Publication number
- EP1026710B1 EP1026710B1 EP00101480A EP00101480A EP1026710B1 EP 1026710 B1 EP1026710 B1 EP 1026710B1 EP 00101480 A EP00101480 A EP 00101480A EP 00101480 A EP00101480 A EP 00101480A EP 1026710 B1 EP1026710 B1 EP 1026710B1
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- EP
- European Patent Office
- Prior art keywords
- contact
- switch
- arc
- switch according
- switching
- 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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Classifications
-
- 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
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/42—Knife-and-clip contacts
Definitions
- the invention relates to a switch with trained as a contact blade movable switch contacts for use in SF 6 -Mittelthesesschaltanlagen, in particular a three-position power switch, whose phases are each associated with a quenching coil as an arc quenching device.
- a three-position circuit breaker with the ON-OFF GEERDET positions must be able to safely carry and switch the rated and short-circuit currents with its contact system, without the contacts becoming welded or mechanically failing.
- the switching ability is u.a. thereby ensuring that the arc generated during switching is kept as short as possible between the fixed contact and the movable switching contact of the respective phase and rapidly extinguished by an arc quenching device, so that the temperature load on the contacts remains low.
- Significant forces are required to switch the moving switch contacts of a three-position circuit breaker.
- the object of the invention is to provide a switch with trained as a contact blade movable switch contacts for use in SF 6 -Mittelthesesschaltanlagen according to the preamble of claim 1, which facilitates switchable and its erosion resistance is increased in ensuring the continuous current carrying capacity.
- the generic switch is formed from a formed with at least one contact blade and operable via a switching shaft switching contact, a fixed contact and an arc quenching device.
- the invention consists in the fact that the one pivotally mounted shaft and a substantially formed in a plane perpendicular to the pivot axis contact surface for the fixed contact having contact blade is formed so that the contact surface is formed on a relative to the shaft considerably thicker contact head and this for a Arc forming during switching consists in part of a burn-off-resistant, high-temperature-resistant tungsten-copper alloy.
- This design of the contact blade makes it possible to significantly reduce the mass of the switching contact, thus reducing the drive energy for its switching movement.
- the continuous current carrying capacity is ensured by the fact that the contact surface is formed for the fixed contact on the existing copper part of the contact head.
- the existing of the tungsten-copper alloy part of the contact head increases the heat resistance of the switching contact in the area acted upon by an arc and prevents it in a burn-off at the switching contact.
- the contact head is fixed contact side spherically formed, so that the current transition between the copper region of the contact head and the copper contact surface of the fixed contact can be made, and the switch blade can be slotted in the longitudinal direction at least in the region of the contact head centered to share the current to be passed.
- the arc has a switch-contact-side and a fixed-contact-side base point, it is expedient to form a surface which receives the respective foot point at the respective contact substantially at right angles to the arc.
- shock absorbers In order to damp the striking of the switching contact in a switching contact movement in the respective end position, it is advantageous to arrange shock absorbers in the defined end positions.
- a three-position circuit breaker is shown with one of two parallel contact blades 1 (also Fig. 4) formed of copper actuated switch contact, a fixed contact 2 and a quenching coil 3.
- the contact blade 1 forming the switching contact is pivotally mounted about a pivot axis S and can be actuated jointly via a connecting rod 4 and a rocker arm 6 which is connected in a rotationally fixed manner to a switching shaft 5.
- They each have a shaft 7 and a fixed contact 2 with the corresponding contact surface 8, which, like two opposing contact surfaces 9 of the fixed contact 2, is formed in a plane perpendicular to the pivot axis S.
- Fig. 4 shows that this is formed on a relative to the shaft 7 considerably thicker contact head 10.
- the contact head thickness is about one and a half to two times the thickness of the shaft.
- the contact head 10 is made of copper and has a tip 11 made of a high-temperature resistant tungsten-copper impregnated alloy with 30% copper, which is subjected to high thermal stress by an arc forming during switching.
- Fixed contact side of the contact head 10 is formed spherical and is pressed by a spring force F against the fixed contact 2.
- This consists of Copper and, in the region corresponding to the tip 11 of the contact head 10 also has a tip 12 made of said high-temperature resistant tungsten-copper impregnated alloy.
- the tip 11 abuts against a shock absorber 13.
- Fig. 2 the switch is shown in a movement phase between the switch positions ON and OFF. Between the tips 11 and 12 of the two switch contacts 1 and 2, an arc LB is formed, which has its two bases each on a substantially perpendicular to the arc-shaped surface 14 and 15 at the respective tip 11 and 12 respectively.
- FIG. 3 shows the switching contact 1 resting against a ground contact 16 and a shock absorber 17 in the switch position GEERDET.
- the tip 11 of the visible switch blade 1 corresponds to a region 18 formed at the grounding contact.
- a contact fair 1 is shown in a side view and in a plan view. In the latter, a centrally formed in the region of the contact head 10 in the longitudinal direction gap 19 can be seen, which serves a current division.
- Figs. 7a and 7b show further alternative embodiments of a contact blade 1, which differ by the formation of the tungsten-copper tip.
- a tip 20 which is reduced to the front edge of the contact head 10 and in FIG. 7 b a half-side tip 21 can be seen in contrast to the previously described embodiment.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Emergency Protection Circuit Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Contacts (AREA)
- Developing Agents For Electrophotography (AREA)
- Lubricants (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
Die Erfindung betrifft einen Schalter mit als Kontaktmesser ausgebildeten beweglichen Schaltkontakten für den Einsatz in SF6-Mittelspannungsschaltanlagen, insbesondere einen Drei-Stellungs-Leistungsschalter, dessen Phasen jeweils eine Löschspule als Lichtbogenlöscheinrichtung zugeordnet ist.The invention relates to a switch with trained as a contact blade movable switch contacts for use in SF 6 -Mittelspannungsschaltanlagen, in particular a three-position power switch, whose phases are each associated with a quenching coil as an arc quenching device.
Ein Drei-Stellungs-Leistungsschalter mit den Stellungen EIN-AUS-GEERDET muß mit seinem Kontaktsystem in den Lage sein, die Nenn- und Kurzschlußströme sicher zu tragen und zu schalten, ohne daß die Kontakte verschweißen oder mechanisch versagen. Die Schaltfähigkeit wird u.a. dadurch sichergestellt, daß der beim Schalten entstehende Lichtbogen zwischen dem Festkontakt und dem beweglichen Schaltkontakt der jeweiligen Phase möglichst kurz gehalten und durch eine Lichtbogenlöscheinrichtung rasch gelöscht wird, so daß die Temperaturbelastung an den Kontakten niedrig bleibt. Für das Schalten der beweglichen Schaltkontakte eines Drei-Stellungs-Leistungsschalters sind erhebliche Kräfte erforderlich.A three-position circuit breaker with the ON-OFF GEERDET positions must be able to safely carry and switch the rated and short-circuit currents with its contact system, without the contacts becoming welded or mechanically failing. The switching ability is u.a. thereby ensuring that the arc generated during switching is kept as short as possible between the fixed contact and the movable switching contact of the respective phase and rapidly extinguished by an arc quenching device, so that the temperature load on the contacts remains low. Significant forces are required to switch the moving switch contacts of a three-position circuit breaker.
Einem durch eine hohe Temperaturbelastung verursachten Abbrand an den Kontakten wird in bekannter Weise dadurch begegnet, daß aus einem abbrandfesten Material bestehende Kontakte eingesetzt werden. So ist aus der AT 228 318 ein elektrischer Kontakt für Hochspannungsschalter bekannt, der als Sinterteil erstellt wird. Dazu wird Wolframpulver mit einer metallischen Bindephase aus Eisen-Nickel oder Kupfer-Nickel gemischt und in reduzierender Atmosphäre gesintert, wobei der Wolfram-Anteil 85 bis 95 % beträgt. Aus der CH 49 70 34 ist ein elektrischer Kontakt bekannt, der durch Tränken eines Wolfram-Skelettkörpers mit einer Kupfer-Chrom-Legierung hergestellt ist. Bei dem Tränkprozeß dringt die Kupfer-Chrom-Legierung in den porösen Wolfram-Skelettkörper ein. In der DE 4040902 C2 und der DE-PS 2353627 sind Kipprohrlasttrennschalter beschrieben, bei denen jeweils der Festkontakt aus einer Wolfram-Kupfer-Tränklegierung mit 30 % Kupfer besteht.A burn caused by a high temperature load on the contacts is countered in a known manner that from a burn-resistant material existing contacts are used. Thus, from AT 228 318 an electrical contact for high voltage switch is known, which is created as a sintered part. For this purpose, tungsten powder is mixed with a metallic binding phase of iron-nickel or copper-nickel and sintered in a reducing atmosphere, wherein the tungsten content is 85 to 95%. From CH 49 70 34 an electrical contact is known, which is made by impregnating a tungsten skeleton body with a copper-chromium alloy. In the soaking process, the copper-chromium alloy penetrates into the porous tungsten skeletal body. In DE 4040902 C2 and DE-PS 2353627 Kipprohraustrasseschalter are described in which each of the fixed contact consists of a tungsten-copper Tränklegierung with 30% copper.
Aufgabe der Erfindung ist es, einen Schalter mit als Kontaktmesser ausgebildeten beweglichen Schaltkontakten für den Einsatz in SF6-Mittelspannungsschaltanlagen nach dem Oberbegriff des Anspruchs 1 zu schaffen, der erleichtert schaltbar und dessen Abbrandfestigkeit bei Sicherstellung der Dauerstromtragfähigkeit erhöht ist.The object of the invention is to provide a switch with trained as a contact blade movable switch contacts for use in SF 6 -Mittelspannungsschaltanlagen according to the preamble of
Diese Aufgabe wird bei einem Schalter nach dem Oberbegriff des Anspruchs 1 durch dessen kennzeichnende Merkmale gelöst. Weiterführende Ausgestaltungen finden sich in den Unteransprüchen.This object is achieved in a switch according to the preamble of
In bekannter Weise, wie in dem Dokument FR 2048151 offenbart, ist der gattungsgemäße Schalter aus einem mit wenigstens einem Kontaktmesser gebildeten und über eine Schaltwelle betätigbaren Schaltkontakt, einem Festkontakt und einer Lichtbogenlöscheinrichtung gebildet. Die Erfindung besteht nun darin, daß das einen schwenkbar gelagerten Schaft und eine im wesentlichen in einer Ebene senkrecht zur Schwenkachse ausgebildete Kontaktfläche für den Festkontakt aufweisende Kontaktmesser so ausgebildet ist, daß die Kontaktfläche an einem gegenüber dem Schaft erheblich dickeren Kontaktkopf ausgebildet ist und dieser für einen sich beim Schalten ausbildenden Lichtbogen teilweise aus einer abbrandfesten, hochtemperaturbeständigen Wolfram-Kupfer-Legierung besteht.In a known manner, as disclosed in the document FR 2048151, the generic switch is formed from a formed with at least one contact blade and operable via a switching shaft switching contact, a fixed contact and an arc quenching device. The invention consists in the fact that the one pivotally mounted shaft and a substantially formed in a plane perpendicular to the pivot axis contact surface for the fixed contact having contact blade is formed so that the contact surface is formed on a relative to the shaft considerably thicker contact head and this for a Arc forming during switching consists in part of a burn-off-resistant, high-temperature-resistant tungsten-copper alloy.
Diese Ausbildung des Kontaktmessers ermöglicht es, die Masse des Schaltkontaktes erheblich zu reduzieren und so die Antriebsenergie für dessen Schaltbewegung zu verringern. Die Dauerstromtragfähigkeit wird dadurch sichergestellt, daß die Kontaktfläche für den Festkontakt an dem aus Kupfer bestehenden Teil des Kontaktkopfes ausgebildet ist. Der aus der Wolfram-Kupfer-Legierung bestehende Teil des Kontaktkopfes erhöht die Hitzebeständigkeit des Schaltkontaktes in dem durch einen Lichtbogen beaufschlagten Bereich und verhindert in diesem einen Abbrand am Schaltkontakt.This design of the contact blade makes it possible to significantly reduce the mass of the switching contact, thus reducing the drive energy for its switching movement. The continuous current carrying capacity is ensured by the fact that the contact surface is formed for the fixed contact on the existing copper part of the contact head. The existing of the tungsten-copper alloy part of the contact head increases the heat resistance of the switching contact in the area acted upon by an arc and prevents it in a burn-off at the switching contact.
Es ist zweckmäßig, auch den Festkontakt in dem durch einen sich beim Schalten ausbildenden Lichtbogen beaufschlagten Bereich aus einer Wolfram-Kupfer-Legierung zu bilden, um auch dessen Hitzebeständigkeit zu erhöhen und auf diese Weise zu verhindern, daß die Kontakte miteinander verschweißen. Als Wolfram-Kupfer-Legierung kann eine bekannte Tränklegierung mit 30 % Kupfer eingesetzt werden, wobei die aus dieser Legierung bestehenden Teile des Kontaktkopfes und des Festkontaktes separat hergestellt und an das übrige Kopfteil angelötet werden.It is convenient to also form the fixed contact in the area of tungsten-copper alloy acted upon by an arc forming arc in order to increase its heat resistance and thus prevent the contacts from welding together. As a tungsten-copper alloy, a known Tränklegierung can be used with 30% copper, which made of this alloy parts of the contact head and the fixed contact are made separately and soldered to the rest of the headboard.
Der Kontaktkopf ist festkontaktseitig ballig ausgebildet, damit der Stromübergang zwischen dem Kupferbereich des Kontaktkopfes und der Kupfer-Kontaktfläche des Festkontaktes erfolgen kann, und das Schaltmesser kann in Längsrichtung wenigstens im Bereich des Kontaktkopfes mittig geschlitzt sein, um den zu führenden Strom zu teilen.The contact head is fixed contact side spherically formed, so that the current transition between the copper region of the contact head and the copper contact surface of the fixed contact can be made, and the switch blade can be slotted in the longitudinal direction at least in the region of the contact head centered to share the current to be passed.
Da der Lichtbogen einen schaltkontaktseitigen und einen festkontaktseitigen Fußpunkt hat, ist es zweckmäßig, eine am jeweiligen Kontakt den jeweiligen Fußpunkt aufnehmende Fläche im wesentlichen rechtwinklig zum Lichtbogen definiert auszubilden.Since the arc has a switch-contact-side and a fixed-contact-side base point, it is expedient to form a surface which receives the respective foot point at the respective contact substantially at right angles to the arc.
Um das Anschlagen des Schaltkontaktes bei einer Schaltkontaktbewegung in die jeweilige Endstellung zu dämpfen, ist es vorteilhaft, in den definierten Endstellungen Stoßdämpfer anzuordnen.In order to damp the striking of the switching contact in a switching contact movement in the respective end position, it is advantageous to arrange shock absorbers in the defined end positions.
Die Erfindung wird nachstehend anhand von Ausführungsbeispielen erläutert. In den zugehörigen Zeichnungen wird schematisch dargestellt:
- Fig. 1:
- eine Phase eines Drei-Stellungs-Leistungsschalters mit einer Löschspule in der Schalterstellung EIN,
- Fig. 2:
- eine Bewegungsphase des beweglichen Schaltkontaktes zwischen den Schalterstellungen EIN und AUS,
- Fig. 3:
- die Phase in der Schalterstellung GEERDET,
- Fig. 4:
- eine Sicht aus der AUS-Position auf den in der Schalterstellung EIN befindlichen Schaltkontakt,
- Fig. 5a bis c:
- die Spitze des Schaltkontaktes in unterschiedlichen Positionen zum Festkontakt,
- Fig. 6a und b:
- ein Kontaktmesser in zwei Ansichten und
- Fig. 7a und b:
- weitere Ausführungen eines Kontaktmessers.
- Fig. 1:
- a phase of a three-position circuit breaker with a quenching coil in the switch position ON,
- Fig. 2:
- a movement phase of the movable switching contact between the switch positions ON and OFF,
- 3:
- the phase in the switch position GEERDET,
- 4:
- a view from the OFF position to the switch contact located in the switch position,
- 5a to c:
- the tip of the switch contact in different positions to the fixed contact,
- 6a and b:
- a contact knife in two views and
- Fig. 7a and b:
- further versions of a contact blade.
In Fig. 1 ist ein Drei-Stellungs-Leistungsschalter mit einem aus zwei parallel angeordneten Kontaktmessern 1 (auch Fig. 4) aus Kupfer gebildeten betätigbaren Schaltkontakt, einem Festkontakt 2 und einer Löschspule 3 dargestellt. Die den Schaltkontakt bildenden Kontaktmesser 1 sind um eine Schwenkachse S schwenkbar angeordnet und über eine Pleuelstange 4 und eine mit einer Schaltwelle 5 drehfest verbundene Kurbelschwinge 6 gemeinsam betätigbar. Sie weisen jeweils einen Schaft 7 und eine mit dem Festkontakt 2 korrespondierende Kontaktfläche 8 auf, die, wie zwei einander gegenüberliegende Kontaktflächen 9 des Festkontaktes 2, in einer Ebene senkrecht zur Schwenkachse S ausgebildet ist. Fig. 4 zeigt, daß diese an einem gegenüber dem Schaft 7 erheblich dickeren Kontaktkopf 10 ausgebildet ist. Die Kontaktkopf-Dicke beträgt etwa das anderthalb- bis zweifache der Dicke des Schafts. Der Kontaktkopf 10 besteht aus Kupfer und weist eine Spitze 11 aus einer hochtemperaturbeständigen Wolfram-Kupfer-Tränklegierung mit 30 % Kupfer auf, die durch einen sich beim Schalten ausbildenden Lichtbogen thermisch hoch beansprucht wird. Festkontaktseitig ist der Kontaktkopf 10 ballig ausgebildet und wird durch eine Federkraft F gegen den Festkontakt 2 gedrückt. Dieser besteht aus Kupfer und weist in dem mit der Spitze 11 des Kontaktkopfes 10 korrespondierenden Bereich ebenfalls eine Spitze 12 aus der genannten hochtemperaturbeständigen Wolfram-Kupfer-Tränklegierung auf. Die Spitze 11 liegt an einem Stoßdämpfer 13 an.In Fig. 1, a three-position circuit breaker is shown with one of two parallel contact blades 1 (also Fig. 4) formed of copper actuated switch contact, a
In der Fig. 2 ist der Schalter in einer Bewegungsphase zwischen den Schalterstellungen EIN und AUS gezeigt. Zwischen den Spitzen 11 und 12 der beiden Schalterkontakte 1 und 2 ist ein Lichtbogen LB ausgebildet, der seine beiden Fußpunkte jeweils auf einer im wesentlichen senkrecht zum Lichtbogen ausgebildeten Fläche 14 und 15 an der jeweiligen Spitze 11 bzw. 12 hat.In Fig. 2, the switch is shown in a movement phase between the switch positions ON and OFF. Between the
Fig. 3 zeigt den in der Schalterstellung GEERDET an einem Erdungskontakt 16 und einem Stoßdämpfer 17 anliegenden Schaltkontakt 1. Die Spitze 11 des sichtbaren Schaltmessers 1 korrespondiert mit einem am Erdungskontakt ausgebildeten Bereich 18.FIG. 3 shows the
In den Fig. 6a und 6b ist ein Kontaktmesse 1 in einer Seitenansicht und in einer Draufsicht dargestellt. In letzterer ist ein im Bereich des Kontaktkopfes 10 in Längsrichtung mittig ausgebildeter Spalt 19 zu sehen, der einer Stromteilung dient. Die Fig. 7a und 7b zeigen weitere alternative Ausführungen eines Kontaktmessers 1, die sich durch die Ausbildung der Wolfram-Kupfer-Spitze unterscheiden. In Fig. 7a ist gegenüber der vorbeschriebenen Ausführung eine auf die Stirnkante des Kontaktkopfes 10 reduzierte Spitze 20 und in Fig. 7b eine halbseitige Spitze 21 zu sehen.In FIGS. 6a and 6b, a
Wird nun der Schaltkontakt aus der EIN-Schaltstellung (Fig. 1, Fig. 5a) in Richtung der AUSSchaltstellung bewegt, durchläuft dieser die Bewegungsphase nach Fig. 5b, in der die Spitzen 11 und 12 voneinander getrennt und die Spitzen 11 durch die anliegende Federkraft F jeweils um den Betrag f aufeinander zu bewegt werden. Dabei entsteht ein Lichtbogen LB zwischen der Spitze 12 und den Spitzen 11, der an seinen Fußpunkten jeweils senkrecht zu den an den Spitzen ausgebildeten Flächen verläuft (Fig. 2, Fig. 5c). Ein Abbrand an den Kontakten 1 und 2 wird durch die aus der hochtemperaturbeständigen Wolfram-Kupfer-Tränklegierung mit 30% Kupfer bestehenden Spitzen 11 (20, 21) und 12 vermieden.Now, if the switching contact from the ON-switching position (Fig. 1, Fig. 5a) moves in the direction of OFFSchaltstellung, this passes through the movement phase of Fig. 5b, in which the
- 11
- Kontaktmessercontact blade
- 22
- Festkontaktfixed contact
- 33
- Löschspulecancellation coil
- 44
- Pleuelstangeconnecting rod
- 55
- Schaltwelleshift shaft
- 66
- Kurbelschwingerocker arm
- 77
- Schaftshaft
- 88th
- Kontaktflächecontact area
- 99
- Kontaktflächecontact area
- 1010
- Kontaktkopfcontact head
- 1111
- Spitzetop
- 1212
- Spitzetop
- 1313
- Stoßdämpfershock absorber
- 1414
- Flächearea
- 1515
- Flächearea
- 1616
- Erdungskontaktground contact
- 1717
- Stoßdämpfershock absorber
- 1818
- BereichArea
- 1919
- Spaltgap
- 2020
- Spitzetop
- 2121
- Spitzetop
- LBLB
- LichtbogenElectric arc
- SS
- Schwenkachseswivel axis
Claims (7)
- A switch for use in SF6 medium-voltage switchgear, comprising a switching contact with at least one contact blade (1), a fixed contact and an arc control device, wherein the contact blade (1) has a pivoted shaft (7) and a contact surface (8) for the fixed contact which lies in a plane that essentially extends perpendicular to the pivoting axis (S), characterized in that the contact surface (8) is realized on a contact head (10) that is significantly thicker than the shaft (7), and in that the contact head (10) consists of a highly temperature-resistant material in the part (11, 20, 21) that is subjected to a high thermal load by the arc (LB) created during the switching process.
- The switch according to Claim 1, characterized in that the fixed contact (2) consists of a highly temperature-resistant material in the part (12) that is subjected to a high thermal load by the arc (LB).
- The switch according to Claim 1 or 2, characterized in that the highly temperature-resistant material consists of a tungsten-copper infiltration alloy that contains 30% copper.
- The switch according to Claim 1, characterized in that the contact head (10) is realized in a crowned fashion on the side of the fixed contact.
- The switch according to Claim 1, characterized in that the contact blade (1) is centrally slotted (19) in the longitudinal direction at least in the region of the contact head (10).
- The switch according to Claim 1 or 2, characterized in that the part (11, 12, 20, 21) consisting of the highly temperature-resistant material is realized such that it respectively has a surface (14, 15) for the respective root of the arc (LB) which extends essentially perpendicular to the arc (LB).
- The switch according to at least one of the preceding claims, characterized in that shock absorbers (13, 17) for the contact head (10) are arranged in the defined end positions (ON, GROUNDED) of the switching contact.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904930A DE19904930C2 (en) | 1999-02-06 | 1999-02-06 | Switches for use in SF6 medium-voltage switchgear |
| DE19904930 | 1999-02-06 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1026710A2 EP1026710A2 (en) | 2000-08-09 |
| EP1026710A3 EP1026710A3 (en) | 2001-11-14 |
| EP1026710B1 true EP1026710B1 (en) | 2006-04-12 |
Family
ID=7896691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00101480A Expired - Lifetime EP1026710B1 (en) | 1999-02-06 | 2000-01-26 | Switch for use in SF6 gas-insulated medium-voltage switchgear |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1026710B1 (en) |
| AT (1) | ATE323319T1 (en) |
| DE (2) | DE19904930C2 (en) |
| ES (1) | ES2261110T3 (en) |
| NO (1) | NO319046B1 (en) |
| PT (1) | PT1026710E (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2687407T3 (en) * | 2009-05-04 | 2018-10-25 | Abb Schweiz Ag | Medium voltage line switch contact arrangement |
| FR2979743B1 (en) | 2011-09-01 | 2013-08-30 | Socomec Sa | MOBILE CONTACTOR CARRIER AND ELECTRICAL CLUTCH EQUIPPTION WITH SUCH TROLLEY |
| FR2979744B1 (en) | 2011-09-01 | 2015-05-01 | Socomec Sa | ELECTRIC CUTTING APPARATUS WITH HIGH CLOSING POWER |
| FR2979746B1 (en) | 2011-09-01 | 2016-07-01 | Socomec Sa | HIGH ELECTRODYNAMIC ELECTRICAL CUTTING APPARATUS |
| EP2822013A1 (en) * | 2013-07-05 | 2015-01-07 | ABB Technology AG | High voltage circuit breaker with high voltage switching unit |
| WO2019058631A1 (en) * | 2017-09-21 | 2019-03-28 | 三菱電機株式会社 | Switch |
| US11158466B2 (en) | 2018-05-10 | 2021-10-26 | Mitsubishi Electric Corporation | Switch |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT228318B (en) * | 1961-08-09 | 1963-07-10 | Plansee Metallwerk | Contacts for high voltage switches |
| AT286423B (en) * | 1969-01-27 | 1970-12-10 | Plansee Metallwerk | Electric contact |
| FR2048151A5 (en) * | 1969-06-02 | 1971-03-19 | Merlin Gerin | |
| US3691335A (en) * | 1971-03-01 | 1972-09-12 | Westinghouse Electric Corp | Knife blade contact assembly with improved contact engagement position retaining means |
| DE7338407U (en) * | 1973-10-26 | 1974-01-24 | Felten & Guilleaume Schaltanlagen Gmbh | Switch-disconnector with quenching device concentric to the disconnection blades |
| DE7429574U (en) * | 1974-09-03 | 1974-12-05 | Bbc Ag | Contact piece |
| DE3820489A1 (en) * | 1988-06-16 | 1989-12-21 | Felten & Guilleaume Energie | Encapsulated switch disconnector arrangement |
| US5013876A (en) * | 1988-09-12 | 1991-05-07 | S&C Electric Company | Switch contacts with improved fault-closing capability |
| US5021615A (en) * | 1989-09-29 | 1991-06-04 | Cooper Power Systems, Inc. | On/off loadbreak switch |
| DE4040902C2 (en) * | 1990-12-20 | 1996-01-11 | Felten & Guilleaume Energie | Tilt tube switch disconnector |
-
1999
- 1999-02-06 DE DE19904930A patent/DE19904930C2/en not_active Expired - Fee Related
-
2000
- 2000-01-26 ES ES00101480T patent/ES2261110T3/en not_active Expired - Lifetime
- 2000-01-26 EP EP00101480A patent/EP1026710B1/en not_active Expired - Lifetime
- 2000-01-26 PT PT00101480T patent/PT1026710E/en unknown
- 2000-01-26 DE DE50012546T patent/DE50012546D1/en not_active Expired - Lifetime
- 2000-01-26 AT AT00101480T patent/ATE323319T1/en not_active IP Right Cessation
- 2000-02-04 NO NO20000566A patent/NO319046B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE323319T1 (en) | 2006-04-15 |
| NO319046B1 (en) | 2005-06-06 |
| EP1026710A2 (en) | 2000-08-09 |
| DE19904930A1 (en) | 2000-08-31 |
| DE50012546D1 (en) | 2006-05-24 |
| NO20000566L (en) | 2000-08-07 |
| EP1026710A3 (en) | 2001-11-14 |
| DE19904930C2 (en) | 2000-12-14 |
| NO20000566D0 (en) | 2000-02-04 |
| ES2261110T3 (en) | 2006-11-16 |
| PT1026710E (en) | 2006-07-31 |
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