EP1187157A1 - Trennschalter - Google Patents
Trennschalter Download PDFInfo
- Publication number
- EP1187157A1 EP1187157A1 EP00810793A EP00810793A EP1187157A1 EP 1187157 A1 EP1187157 A1 EP 1187157A1 EP 00810793 A EP00810793 A EP 00810793A EP 00810793 A EP00810793 A EP 00810793A EP 1187157 A1 EP1187157 A1 EP 1187157A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- isolating
- encapsulation
- contacts
- insulating layer
- projection
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact
-
- 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
- H01H33/02—Details
- H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
Definitions
- the invention is based on a disconnector according to the preamble of claim 1.
- Such a circuit breaker is used within gas-insulated switchgear.
- GIS gas-insulated switchgear
- a circuit breaker essentially comprises a grounded enclosure, two of Isolators generally isolating contacts and held centrally in the encapsulation a sliding isolating contact finger.
- the isolating contact finger is between the Disconnect contacts slidably arranged. With the disconnector open the isolating contact finger is essentially within one Isolating contact, so that the distance between the two isolating contacts the isolating Separating distance forms. When the disconnector is closed, the Isolating contact finger forms the isolating distance between the two isolating contacts a conductive connection. When opening and closing the disconnector forming isolating sparks the isolating contact fingers in the direction of one or of the other isolating contact until the isolating path is completely open or closed is.
- the encapsulations of conventional disconnectors are particularly in the area of Separation distance enlarged to a flashover of a isolating spark To prevent encapsulation during the switching process.
- the encapsulations are in generally designed as castings, which are complex and expensive to manufacture.
- a disconnector is known in which on the inside of the Encapsulation of a solid insulation layer is applied.
- To bridge the open switch due to leakage currents along the solid insulation layer to prevent the encapsulation is in the area of the middle of the separation distance Solid insulation layer interrupted by a bulging, earthed bead.
- an additional one that covers the bead tubular insulating screen provided.
- the invention has for its object a disconnector of the aforementioned To create kind that has a high dielectric strength and yet simple and is compact and inexpensive to manufacture.
- the object is achieved according to claim 1 in that the insulating layer at least in the area between the isolating contacts on the inside of the Encapsulation is applied, and that at least one protrusion on the insulating layer is appropriate.
- the distance between the encapsulation and the Isolating contacts can be reduced because the insulating layer prevents a Discharge which occurs when the disconnector is opened in the direction of the enclosure developed, the encapsulation reached and would lead to a high-current arc.
- the open circuit breaker can be bridged by leakage currents along the solid insulation layer on the encapsulation through the protrusion on the Insulating layer can be prevented.
- FIG. 1 shows a first embodiment of the disconnector according to the invention.
- the isolating contacts are designed in the form of rounded shield electrodes.
- a separating contact finger 3, which is designed to be movable, is arranged between the two isolating contacts.
- the isolating contacts 2 are held centrally by support insulators 4 in the encapsulation 1.
- An insulation layer 7 is arranged on the inside of the encapsulation 1 in the region of the isolating section between the two isolating contacts 2.
- the insulation layer 7 advantageously extends into the area of the isolating contacts 2, but not all the way to the support insulator 4, so that an exposed encapsulation section remains between the support insulator 4 and the insulation layer 7.
- the insulation layer 7 has an inward projection 8 made of insulation material. With this projection 8, any arcing of the isolating spark 5 that may occur on the insulation layer can be prevented from spreading in the direction of the encapsulation.
- the thickness I 1 of the insulation layer 7 makes up less than half the length of the entire insulation path I tot between the isolating contact 2 and the encapsulation 1.
- the isolating contact finger 3 closes the two isolating contacts 2 briefly.
- the Disconnect contact finger 3 shifted in the direction of the right disconnect contact, whereby between the end of the left isolating contact and the tip of the isolating contact finger 3 Form isolating spark 5.
- the disconnector is open, the Isolating contact finger 3 inside the right isolating contact.
- To close the Disconnect switch becomes the isolating contact finger in the direction of the left isolating contact shifted, being between the end of the left break contact and the tip of the isolating contact finger in turn form isolating sparks.
- the insulation layer 7 has a region in the middle between the two isolating contacts 2 an inwardly formed projection 9.
- the projection points on the inside End two insulating shields 10 running on both sides in the direction of the axis A.
- the Insulating screens 10 are tubular and have an opening through which the isolating contact finger 3 can be guided.
- the insulation layer 7, the projection 9 and the insulating screen 10 together form a type of cup around each of the two Isolating contacts 2.
- a spark 5 that may occur in the direction of the encapsulation 1 can only spread within this cup and do not leave it, because the Do not spark against the field lines and against their original direction of travel can move. This may result in a rollover along the Solid layer between the two isolating contacts 2 can be prevented.
- the insulation layer 7 advantageously not firmly connected to the encapsulation 1.
Landscapes
- Gas-Insulated Switchgears (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
- Fig. 1
- eine schematische Darstellung einer ersten Ausführungsform des erfindungsgemässen Trennschalters während dem Öffnen des Trennschalters, und
- Fig. 2
- eine schematische Darstellungen einer zweiten Ausführungsform des erfindungsgemässen Trennschalters im offenen Zustand des Trennschalters.
- 1
- Kapselung
- 2
- Trennkontakt
- 3
- Trennkontaktfinger
- 4
- Stützisolator
- 5
- Trennerfunken, Lichtbogen
- 6
- Isoliergas
- 7
- Isolierschicht
- 8, 9
- Vorsprung, Barriere
- 10
- Isolierschirm
- Il
- Dicke der Isolierschicht
- Itot
- Länge der Isolierstrecke
Claims (5)
- Trennschalter, enthaltendmindestens zwei Trennkontakte (2),mindestens einen zwischen den Trennkontakten (2) entlang einer Achse verschiebbar angeordneten Trennkontaktfinger (3), welcher im geöffneten Zustand des Trennschalters im Innern eines der Trennkontakte (2) angeordnet ist,eine teilweise auf der Innenseite der Kapselung (1) aufgetragene Isolierschicht (7),dadurch gekennzeichnet, dassdie Isolierschicht (7) mindestens im Bereich zwischen den Trennkontakten (2) lückenlos auf der Innenseite der Kapselung (1) aufgetragen ist, und dassauf der Isolierschicht (7) mindestens ein Vorsprung (8, 9) vorgesehen ist.
- Trennschalter nach Anspruch 1, dadurch gekennzeichnet, dassdie Dicke (Il) der Isolierschicht (7) höchstens die Hälfte der Länge (Itot) der gesamten Isolationsstrecke zwischen den Trennkontakten (2) und der Kapselung (1) beträgt.
- Trennschalter nach Anspruch 2, dadurch gekennzeichnet, dassmindestens ein Vorsprung (8) im Bereich eines Randes der Isolierschicht (7) angeordnet ist.
- Trennschalter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dassmindestens ein Vorsprung (9) im Bereich zwischen den Trennkontakten (2) angeordnet ist, und dassder Vorsprung (9) im wesentlichen scheibenförmig mit einer zentral angeordneten Durchführungsöffnung ausgebildet ist.
- Trennschalter nach Anspruch 4, dadurch gekennzeichnet, dassam Vorsprung (9) im Bereich der Durchführungsöffnung beidseits ein im wesentlichen parallel zur Achse verlaufender, rohrförmiger Isolierschirm (10) angeordnet ist.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00810793A EP1187157B1 (de) | 2000-09-04 | 2000-09-04 | Trennschalter |
DE50013696T DE50013696D1 (de) | 2000-09-04 | 2000-09-04 | Trennschalter |
AU63612/01A AU780289B2 (en) | 2000-09-04 | 2001-08-23 | Disconnector |
US09/942,916 US6506067B2 (en) | 2000-09-04 | 2001-08-31 | Disconnector |
KR1020010053155A KR100771031B1 (ko) | 2000-09-04 | 2001-08-31 | 디스커넥터 |
CNB011412380A CN1186792C (zh) | 2000-09-04 | 2001-09-04 | 断路器 |
JP2001267073A JP2002133980A (ja) | 2000-09-04 | 2001-09-04 | ディスコネクター |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00810793A EP1187157B1 (de) | 2000-09-04 | 2000-09-04 | Trennschalter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1187157A1 true EP1187157A1 (de) | 2002-03-13 |
EP1187157B1 EP1187157B1 (de) | 2006-11-02 |
Family
ID=8174887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00810793A Expired - Lifetime EP1187157B1 (de) | 2000-09-04 | 2000-09-04 | Trennschalter |
Country Status (7)
Country | Link |
---|---|
US (1) | US6506067B2 (de) |
EP (1) | EP1187157B1 (de) |
JP (1) | JP2002133980A (de) |
KR (1) | KR100771031B1 (de) |
CN (1) | CN1186792C (de) |
AU (1) | AU780289B2 (de) |
DE (1) | DE50013696D1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4578344B2 (ja) * | 2005-07-19 | 2010-11-10 | 三菱電機株式会社 | ガス絶縁スイッチギヤ |
DE102012223569B4 (de) * | 2012-12-18 | 2014-08-14 | Siemens Aktiengesellschaft | Röntgenröhre |
CN104362035B (zh) * | 2014-10-31 | 2017-10-10 | 平高集团有限公司 | 一种高压开关装置及其灭弧室、罐体 |
CN104362036B (zh) * | 2014-10-31 | 2017-06-16 | 平高集团有限公司 | 开关装置罐体及使用该罐体的灭弧室、高压开关装置 |
CN114724882A (zh) * | 2022-03-16 | 2022-07-08 | 河北邯峰发电有限责任公司 | 高频电源高压隔离开关 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1131771B (de) * | 1959-02-26 | 1962-06-20 | Licentia Gmbh | Teilisolierter Schubtrennschalter der gekapselten Bauform |
DE1247505B (de) * | 1961-04-04 | 1967-08-17 | Licentia Gmbh | Anordnung zur Erhoehung der Isolierfaehigkeit einer laengs der Oberflaeche elektrisch beanspruchten Isolierstoffwand |
US4256938A (en) * | 1977-09-03 | 1981-03-17 | Wickmann-Werke Boblingen Gmbh | Electrical control device for high and low voltage installations |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3812314A (en) * | 1971-08-23 | 1974-05-21 | Gen Electric | High power electrical bushing having a vacuum switch encapsulated therein |
US4413166A (en) * | 1981-03-19 | 1983-11-01 | Westinghouse Electric Corp. | Disconnect switch |
-
2000
- 2000-09-04 EP EP00810793A patent/EP1187157B1/de not_active Expired - Lifetime
- 2000-09-04 DE DE50013696T patent/DE50013696D1/de not_active Expired - Lifetime
-
2001
- 2001-08-23 AU AU63612/01A patent/AU780289B2/en not_active Ceased
- 2001-08-31 US US09/942,916 patent/US6506067B2/en not_active Expired - Lifetime
- 2001-08-31 KR KR1020010053155A patent/KR100771031B1/ko not_active IP Right Cessation
- 2001-09-04 JP JP2001267073A patent/JP2002133980A/ja active Pending
- 2001-09-04 CN CNB011412380A patent/CN1186792C/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1131771B (de) * | 1959-02-26 | 1962-06-20 | Licentia Gmbh | Teilisolierter Schubtrennschalter der gekapselten Bauform |
DE1247505B (de) * | 1961-04-04 | 1967-08-17 | Licentia Gmbh | Anordnung zur Erhoehung der Isolierfaehigkeit einer laengs der Oberflaeche elektrisch beanspruchten Isolierstoffwand |
US4256938A (en) * | 1977-09-03 | 1981-03-17 | Wickmann-Werke Boblingen Gmbh | Electrical control device for high and low voltage installations |
Also Published As
Publication number | Publication date |
---|---|
CN1186792C (zh) | 2005-01-26 |
US6506067B2 (en) | 2003-01-14 |
KR20020018958A (ko) | 2002-03-09 |
AU780289B2 (en) | 2005-03-17 |
AU6361201A (en) | 2002-03-07 |
KR100771031B1 (ko) | 2007-10-29 |
JP2002133980A (ja) | 2002-05-10 |
DE50013696D1 (de) | 2006-12-14 |
CN1345079A (zh) | 2002-04-17 |
US20020028594A1 (en) | 2002-03-07 |
EP1187157B1 (de) | 2006-11-02 |
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