EP1187157B1 - Trennschalter - Google Patents

Trennschalter Download PDF

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Publication number
EP1187157B1
EP1187157B1 EP00810793A EP00810793A EP1187157B1 EP 1187157 B1 EP1187157 B1 EP 1187157B1 EP 00810793 A EP00810793 A EP 00810793A EP 00810793 A EP00810793 A EP 00810793A EP 1187157 B1 EP1187157 B1 EP 1187157B1
Authority
EP
European Patent Office
Prior art keywords
isolating
projection
encapsulation
contacts
isolating contacts
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
Application number
EP00810793A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1187157A1 (de
Inventor
Gerhard Dr. Salge
Marco Dr. Piemontesi
Christoph Dr. Heitz
Herbert Meinecke
Diego Sologuren-Sanchez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
Original Assignee
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ABB Research Ltd Switzerland, ABB Research Ltd Sweden filed Critical ABB Research Ltd Switzerland
Priority to DE50013696T priority Critical patent/DE50013696D1/de
Priority to EP00810793A priority patent/EP1187157B1/de
Priority to AU63612/01A priority patent/AU780289B2/en
Priority to US09/942,916 priority patent/US6506067B2/en
Priority to KR1020010053155A priority patent/KR100771031B1/ko
Priority to JP2001267073A priority patent/JP2002133980A/ja
Priority to CNB011412380A priority patent/CN1186792C/zh
Publication of EP1187157A1 publication Critical patent/EP1187157A1/de
Application granted granted Critical
Publication of EP1187157B1 publication Critical patent/EP1187157B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

  • Such a disconnector is used within gas-insulated switchgear.
  • Isolation switches within gas-insulated switchgear are dielectrically critical components because they contain small radii and therefore cause inhomogeneities in the electric field characteristic.
  • a circuit breaker essentially comprises a grounded enclosure, two isolating contacts held centrally by support insulators, generally in the enclosure, and a slidable isolating contact finger.
  • the Trenn brieflyfinger is slidably disposed between the isolating contacts.
  • the Trenn brieflyfinger In the open state of the circuit breaker is the Trenn Vietnamesefinger substantially within the one isolating contact, so that the distance between the two isolating contacts forms the insulating separation path.
  • the isolating contact finger bridges the isolating distance between the two isolating contacts, thus forming a conductive connection.
  • the enclosures of conventional circuit breakers are formed enlarged in particular in the region of the separation section to prevent a rollover of a separator spark for encapsulation during the switching operation.
  • the encapsulations are generally designed as castings, which are complicated and expensive to produce.
  • the invention has for its object to provide a circuit breaker of the type mentioned, which has a high dielectric strength and yet simple and compact and inexpensive to manufacture.
  • the object is achieved according to claim 1, characterized in that the insulating layer is applied at least in the area between the isolating contacts gapless on the inside of the enclosure, and that on the insulating layer at least one projection is attached.
  • the distance between the encapsulation and the isolating contacts can be reduced because the insulating layer prevents a discharge, which develops during the opening of the isolating switch in the direction of the encapsulation, from reaching the encapsulation and leading to a high-current arc.
  • the bridging of the opened circuit breaker can be prevented by leakage currents along the solid insulating layer on the encapsulation by the projection on the insulating layer.
  • Fig. 1 shows a first embodiment of the inventive circuit breaker.
  • the isolating contacts are in the form of rounded shielding electrodes.
  • a separating contact finger 3 is arranged, which is designed to be movable.
  • the release contacts 2 are held centrally by post insulators 4 in the enclosure 1.
  • an insulating layer 7 is arranged in the region of the separation distance between the two isolating contacts 2.
  • the insulation layer 7 advantageously extends into the region of the release contacts 2, but not all the way to the support insulator 4, so that an exposed encapsulation section still remains between the support insulator 4 and the insulation layer 7.
  • the insulating layer 7 has an inwardly formed projection 8 of insulating material. With this projection 8 any occurring flashovers of Trennerfunkens 5 can be prevented from spreading to the insulating layer in the direction of encapsulation.
  • the thickness l i of the insulating layer 7 makes up less than half the length of the entire insulation gap l dead between the isolating contact 2 and the encapsulation 1.
  • the isolating contact finger 3 closes the two isolating contacts 2 briefly.
  • the isolating contact finger 3 is displaced in the direction of the right isolating contact, whereby separator spark 5 is formed between the end of the left isolating contact and the tip of the isolating contact finger 3.
  • the Trennnapsfinger 3 In the open state of the circuit breaker is the Trennmindfinger 3 inside the right isolating contact.
  • the isolating contact finger is displaced in the direction of the left isolating contact, with separator sparking again forming between the end of the left isolating contact and the tip of the isolating contact finger.
  • Fig. 2 shows a second embodiment of the inventive circuit breaker.
  • the insulating layer 7 has an inwardly formed projection 9.
  • the projection has at the inner end two on both sides in the direction of the axis A extending insulating 10 on.
  • the insulating screens 10 are tubular and have an opening through which the separating contact finger 3 can be guided.
  • the insulation layer 7, the projection 9 and the insulating screen 10 together form a kind of cup around one of the two isolating contacts 2. Any spark occurring in the direction of the enclosure 1 5 can only spread within this cup and not leave it, since the spark can not move against the field lines and against its original direction. As a result, if necessary, a flashover along the solids layer between the two separating contacts 2 can be prevented.
  • the insulating layer 7 is advantageously not firmly connected to the enclosure 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)
EP00810793A 2000-09-04 2000-09-04 Trennschalter Expired - Lifetime EP1187157B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE50013696T DE50013696D1 (de) 2000-09-04 2000-09-04 Trennschalter
EP00810793A EP1187157B1 (de) 2000-09-04 2000-09-04 Trennschalter
AU63612/01A AU780289B2 (en) 2000-09-04 2001-08-23 Disconnector
KR1020010053155A KR100771031B1 (ko) 2000-09-04 2001-08-31 디스커넥터
US09/942,916 US6506067B2 (en) 2000-09-04 2001-08-31 Disconnector
JP2001267073A JP2002133980A (ja) 2000-09-04 2001-09-04 ディスコネクター
CNB011412380A CN1186792C (zh) 2000-09-04 2001-09-04 断路器

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 EP1187157A1 (de) 2002-03-13
EP1187157B1 true 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 (ko)
EP (1) EP1187157B1 (ko)
JP (1) JP2002133980A (ko)
KR (1) KR100771031B1 (ko)
CN (1) CN1186792C (ko)
AU (1) AU780289B2 (ko)
DE (1) DE50013696D1 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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
US3812314A (en) * 1971-08-23 1974-05-21 Gen Electric High power electrical bushing having a vacuum switch encapsulated therein
DE2739811C2 (de) * 1977-09-03 1982-05-13 Wickmann-Werke Böblingen GmbH, 7030 Böblingen Elektrische Schaltvorrichtung mit wenigstens einem als Vakuum-Unterbrecher ausgebildeten Schalter
US4413166A (en) * 1981-03-19 1983-11-01 Westinghouse Electric Corp. Disconnect switch

Also Published As

Publication number Publication date
KR20020018958A (ko) 2002-03-09
AU780289B2 (en) 2005-03-17
JP2002133980A (ja) 2002-05-10
KR100771031B1 (ko) 2007-10-29
US20020028594A1 (en) 2002-03-07
CN1345079A (zh) 2002-04-17
US6506067B2 (en) 2003-01-14
CN1186792C (zh) 2005-01-26
EP1187157A1 (de) 2002-03-13
AU6361201A (en) 2002-03-07
DE50013696D1 (de) 2006-12-14

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