DE102004061497A1 - Shield system consisting of a copper-chromium alloy produced by fusion metallurgy - Google Patents
Shield system consisting of a copper-chromium alloy produced by fusion metallurgy Download PDFInfo
- Publication number
- DE102004061497A1 DE102004061497A1 DE200410061497 DE102004061497A DE102004061497A1 DE 102004061497 A1 DE102004061497 A1 DE 102004061497A1 DE 200410061497 DE200410061497 DE 200410061497 DE 102004061497 A DE102004061497 A DE 102004061497A DE 102004061497 A1 DE102004061497 A1 DE 102004061497A1
- Authority
- DE
- Germany
- Prior art keywords
- copper
- chromium
- vacuum interrupter
- chromium alloy
- vacuum
- 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.)
- Ceased
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
- H01H33/60—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
- H01H33/662—Housings or protective screens
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/0203—Contacts characterised by the material thereof specially adapted for vacuum switches
- H01H1/0206—Contacts characterised by the material thereof specially adapted for vacuum switches containing as major components Cu and Cr
-
- 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
- H01H33/662—Housings or protective screens
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
- H01H2033/66269—Details relating to the materials used for screens in vacuum switches
Abstract
Um eine Vakuumschaltröhre (1) zum Unterbrechen eines Stromes mit einem einen Isolierabschnitt (2a, 2b) aufweisenden vakuumdichten Gehäuse, in dem eine Kontaktanordnung mit relativ zueinander beweglichen Kontakten (7, 9) angeordnet ist, wobei ein die Kontaktanordnung umschließendes Abschirmelement (11) zum Verhindern einer Metallabscheidung an dem Isolierabschnitt (2a, 2b) vorgesehen ist, bereitzustellen, bei der auch bei hohen Betriebsspannungen eine Beschädigung des Abschirmelementes (11) vermieden ist, wird vorgeschlagen, dass das Abschirmelement (11) zumindest teilweise aus einer schmelzmetallurgisch hergestellten Kupfer-Chromlegierung hergestellt ist.A vacuum interrupter (1) for interrupting a current with a vacuum-tight housing having an insulating section (2a, 2b) in which a contact arrangement with relatively movable contacts (7, 9) is arranged, wherein a shielding element (11) enclosing the contact arrangement Preventing a metal deposit on the insulating portion (2a, 2b) is provided to avoid damage to the shielding (11) even at high operating voltages, it is proposed that the shielding element (11) at least partially made of a melt-metallurgically produced copper-chromium alloy is made.
Description
Die Erfindung betrifft eine Vakuumschaltröhre zum Unterbrechen eines Stromes mit einem einen Isolierabschnitt aufweisenden vakuumdichten Gehäuse, in dem eine Kontaktanordnung mit relativ zueinander beweglichen Kontakten angeordnet ist, wobei ein die Kontaktanordnung umschließendes Abschirmelement zum Unterdrücken einer Metallabscheidung an dem Isolierabschnitt vorgesehen ist.The The invention relates to a vacuum interrupter for interrupting a Stream with a Isolierabs having a vacuum-tight Casing, in which a contact arrangement with relatively movable Contacts is arranged, wherein a contact arrangement enclosing the shielding to suppress a metal deposit is provided on the insulating portion.
Die Erfindung betrifft ferner ein Verfahren zum Herstellen einer Abschirmung einer Vakuumschaltröhre.The The invention further relates to a method for producing a shield a vacuum interrupter.
Die
eingangs genannte Vakuumschaltröhre und
das eingangs genannte Verfahren sind beispielsweise aus der
In
der
Der vorbekannten Vakuumschaltröhre haftet der Nachteil an, dass ein zwischen den Kontakten der Kontaktanordnung beim Öffnen gezogener Lichtbogen Fußpunkte an der Abschirmung ausbildet, wodurch diese beschädigt werden kann.Of the previously known vacuum interrupter adheres to the disadvantage that one between the contacts of the contact arrangement When opening drawn arc of foot points forms on the shield, whereby they are damaged can.
Aufgabe der Erfindung ist es daher, eine Vakuumschaltröhre der eingangs genannten Art bereitzustellen, bei der auch bei hohen Betriebsspannungen und Strömen eine Beschädigung des Abschirmelementes durch den Lichtbogen vermieden ist.task The invention is therefore a vacuum interrupter of the aforementioned To provide type in which even at high operating voltages and Stream a damage the shielding element is avoided by the arc.
Die Erfindung löst diese Aufgabe dadurch, dass das Abschirmelement zumindest teilweise aus einer schmelzmetallurgisch hergestellten Kupfer-Chromlegierung besteht.The Invention solves this task in that the shielding at least partially from a melt-metallurgically produced copper-chromium alloy consists.
Die
schmelzmetallurgische Herstellung ist, wie bereits ausgeführt wurde,
in der
Vorteilhafterweise weist die schmelzmetallurgisch hergestellte Kupfer-Chromlegierung eine Kupfermatrix mit einer gleichmäßigen Verteilung von feinteiligen dendritischen Chromausscheidungen in der Kupfermatrix auf. Mit diesem Schmelzwerkstoff konnte die Temperaturbeständigkeit der Abschirmung noch weiter erhöht werden.advantageously, indicates the molten metallurgically produced copper-chromium alloy a copper matrix with a uniform distribution of finely divided dendritic chromium precipitates in the copper matrix. With this Melting material could still the temperature resistance of the shield further increased become.
Vorteilhafterweise weist die Kupfer-Chromlegierung einen Kupferanteil zwischen 75 und 40 Gewichtsprozent und einen Chromanteil zwischen 25 und 60 Gewichtsprozent auf.advantageously, the copper-chromium alloy has a copper content between 75 and 40 percent by weight and a chromium content of between 25 and 60 percent by weight on.
Ausgehend von dem eingangs genannten Verfahren löst die Erfindung die Aufgabe dadurch, dass ein plattenförmiger oder blockförmiger Kupfer-Chrom-Schmelzwerkstoff hergestellt wird, wobei die Abschirmung durch Kaltumformen und/oder Span abhebende Bearbeitung des Kupfer-Chrom-Schmelzwerkstoffes hergestellt wird. Im Gegensatz zu den Abschirmungen des Standes der Technik wird die Abschirmung nicht durch geeignete Ziehtechniken hergestellt. Vielmehr kommen erfindungsgemäß Verfahren der Kaltumformung zum Einsatz. So können beispielsweise aus den platten- oder blechförmigen Chrom-Kupferscheiben Streifen ausgestanzt werden, die anschließend durch Kaltumformen, also Biegen oder Rollen, in die gewünschte rohrför mige Struktur gebracht werden. Diese rohrförmigen Strukturen, oder mit anderen Worten Kupfer-Chromrohre, dienen dann als Halbzeug für die Herstellung der röhrenförmigen Abschirmung.Based on the above-mentioned method, the invention solves the problem in that a plate-shaped or block-shaped copper-chromium melting material is produced, wherein the shield is produced by cold forming and / or chip-removing machining of the copper-chromium enamel. Unlike the shields of the prior art, the shield is not made by suitable drawing techniques. Rather, according to the invention, methods of cold forming are used. For example, can be punched out of the plate or sheet-shaped chrome-copper discs strips, which are then brought by cold forming, ie bending or rolling, in the desired rohrför shaped structure. These tubular structures, or in other words copper-chrome tubes, then serve as a semi-finished for the Production of the tubular shield.
Gemäß dem erfindungsgemäßen Verfahren ist auch die Herstellung eines blockförmigen Kupfer-Chrom-Schmelzwerkstoffes möglich, wobei der Kupfer-Chrom Block spanabhebend bearbeitet wird, also die Abschirmung durch einfaches Bohren eines Hohlraumes in den blockförmigen Kupfer-Chrom-Schmelzwerkstoff hergestellt wird. Selbstverständlich sind auch Fräsvorgänge am Kupfer-Chrom-Schmelzwerkstoff im Rahmen der Erfindung als spanabhebende Bearbeitung möglich. Da die Spanabhebung große Materialverluste im Gefolge hat, wird im Rahmen der Erfindung das Kaltumformen von plattenförmigen Kupfer-Chrom-Schmelzwerkstoffen bevorzugt.According to the inventive method is also the production of a block-shaped copper-chromium fusion material possible, wherein the copper-chromium block is machined, so shielding by simply drilling a cavity into the block-shaped copper-chrome fuser material will be produced. Of course are also milling operations on the copper-chrome-melting material in the context of the invention as a machining possible. Because the Chip removal big Material losses in the wake, is in the invention Cold forming of plate-shaped Copper-chrome fused materials are preferred.
Weitere zweckmäßige Ausgestaltungen und Vorteile der Erfindung sind Gegenstand der nachfolgenden Beschreibung von Ausführungsbeispielen der Erfindung unter Bezug auf die Figur der Zeichnung, wobei dieFurther expedient embodiments and advantages of the invention are the subject of the following description of embodiments of the Invention with reference to the figure of the drawing, wherein the
Figur eine teilweise geschnittene Seitenansicht einer Vakuumschaltröhre zeigt.figure a partially sectioned side view of a vacuum interrupter shows.
Die
einzige Figur zeigt eine teilweise geschnittene Seitenansicht einer
Vakuumschaltröhre
Werden
die Kontakte
In
der Figur ist ferner erkennbar, dass der Bewegkontakt
Abschließend sei
darauf hingewiesen, dass die Abschirmung
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410061497 DE102004061497A1 (en) | 2004-12-15 | 2004-12-15 | Shield system consisting of a copper-chromium alloy produced by fusion metallurgy |
PCT/EP2005/056723 WO2006063989A1 (en) | 2004-12-15 | 2005-12-13 | Shielding system consisting of a copper chromium alloy produced by fusion metallurgy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410061497 DE102004061497A1 (en) | 2004-12-15 | 2004-12-15 | Shield system consisting of a copper-chromium alloy produced by fusion metallurgy |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004061497A1 true DE102004061497A1 (en) | 2006-07-06 |
Family
ID=35637470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410061497 Ceased DE102004061497A1 (en) | 2004-12-15 | 2004-12-15 | Shield system consisting of a copper-chromium alloy produced by fusion metallurgy |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102004061497A1 (en) |
WO (1) | WO2006063989A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007047475B3 (en) * | 2007-09-27 | 2008-11-20 | Siemens Ag | Hollow cylindrical component e.g. vapor shield, manufacturing method for vacuum interrupter, involves locally and transiently heating border areas of section to temperature for liquefying metallic material in areas, in protective atmosphere |
DE102007047473B3 (en) * | 2007-09-27 | 2008-11-20 | Siemens Ag | Procedure for the production of tube shaped component useful as shielding in a vacuum interrupter, comprises filling a section of a tubular cavity of molten form in axial direction with a low melting metal |
WO2017087084A1 (en) * | 2015-11-20 | 2017-05-26 | Eaton Corporation | Maximizing wall thickness of a cu-cr floating center shield component by moving contact gap away from center flange axial location |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107644779A (en) * | 2017-09-28 | 2018-01-30 | 湖州电力设备成套有限公司 | A kind of vacuum bubbles and vacuum bubbles pole |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2039063B2 (en) * | 1969-08-08 | 1978-07-20 | Associated Electrical Industries Ltd., London | Vacuum switch |
EP0172411A1 (en) * | 1984-07-30 | 1986-02-26 | Siemens Aktiengesellschaft | Vacuum contactor with contact pieces of CuCr and process for the production of such contact pieces |
DE3932159C2 (en) * | 1989-09-27 | 1992-03-26 | Calor-Emag Elektrizitaets Ag, 4030 Ratingen, De | |
DE19503347A1 (en) * | 1995-02-02 | 1996-08-08 | Abb Patent Gmbh | Shielding element surrounding the contact point of a vacuum switch |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4553007A (en) * | 1983-09-30 | 1985-11-12 | Westinghouse Electric Corp. | Arc resistant vapor condensing shield for vacuum-type circuit interrupter |
FR2745118B1 (en) * | 1996-02-16 | 1998-04-03 | Schneider Electric Sa | VACUUM BREAKER OR CIRCUIT BREAKER |
DE19747242C2 (en) * | 1997-10-25 | 2002-02-21 | Abb Patent Gmbh | Process for producing a metal mold for vacuum chamber screens or vacuum chamber contact pieces |
DE102004006609B4 (en) * | 2004-02-11 | 2006-03-16 | Abb Technology Ag | Vacuum switch with shielding |
-
2004
- 2004-12-15 DE DE200410061497 patent/DE102004061497A1/en not_active Ceased
-
2005
- 2005-12-13 WO PCT/EP2005/056723 patent/WO2006063989A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2039063B2 (en) * | 1969-08-08 | 1978-07-20 | Associated Electrical Industries Ltd., London | Vacuum switch |
EP0172411A1 (en) * | 1984-07-30 | 1986-02-26 | Siemens Aktiengesellschaft | Vacuum contactor with contact pieces of CuCr and process for the production of such contact pieces |
DE3932159C2 (en) * | 1989-09-27 | 1992-03-26 | Calor-Emag Elektrizitaets Ag, 4030 Ratingen, De | |
DE19503347A1 (en) * | 1995-02-02 | 1996-08-08 | Abb Patent Gmbh | Shielding element surrounding the contact point of a vacuum switch |
Non-Patent Citations (1)
Title |
---|
GERLING,Heinrich: Über Fertigungsverfahren, URFORMEN, UMFORMEN. Braunschweig: Westermann, 1965, S.65-75 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007047475B3 (en) * | 2007-09-27 | 2008-11-20 | Siemens Ag | Hollow cylindrical component e.g. vapor shield, manufacturing method for vacuum interrupter, involves locally and transiently heating border areas of section to temperature for liquefying metallic material in areas, in protective atmosphere |
DE102007047473B3 (en) * | 2007-09-27 | 2008-11-20 | Siemens Ag | Procedure for the production of tube shaped component useful as shielding in a vacuum interrupter, comprises filling a section of a tubular cavity of molten form in axial direction with a low melting metal |
WO2009043769A1 (en) | 2007-09-27 | 2009-04-09 | Siemens Aktiengesellschaft | Tubular component usable as a shield in a vacuum switch tube and method for producing a tubular component usable as a shield in a vacuum switch tube |
WO2017087084A1 (en) * | 2015-11-20 | 2017-05-26 | Eaton Corporation | Maximizing wall thickness of a cu-cr floating center shield component by moving contact gap away from center flange axial location |
CN108352272A (en) * | 2015-11-20 | 2018-07-31 | 伊顿智能动力有限公司 | The wall thickness of CU-CR floating neutral shade assemblies is maximized by moving contact gap far from center flange axial position |
US10134546B2 (en) | 2015-11-20 | 2018-11-20 | Eaton Intelligent Power Limited | Maximizing wall thickness of a Cu—Cr floating center shield component by moving contact gap away from center flange axial location |
Also Published As
Publication number | Publication date |
---|---|
WO2006063989A1 (en) | 2006-06-22 |
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Legal Events
Date | Code | Title | Description |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |