EP2560179A1 - Vakuum-lichtbogenlöschungskammer mit doppelten brüchen - Google Patents

Vakuum-lichtbogenlöschungskammer mit doppelten brüchen Download PDF

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Publication number
EP2560179A1
EP2560179A1 EP10846310A EP10846310A EP2560179A1 EP 2560179 A1 EP2560179 A1 EP 2560179A1 EP 10846310 A EP10846310 A EP 10846310A EP 10846310 A EP10846310 A EP 10846310A EP 2560179 A1 EP2560179 A1 EP 2560179A1
Authority
EP
European Patent Office
Prior art keywords
isolation shield
vacuum interrupter
middle isolation
insulating shell
double
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.)
Withdrawn
Application number
EP10846310A
Other languages
English (en)
French (fr)
Other versions
EP2560179A4 (de
Inventor
Jianfei Liu
Jie Wei
Dongmei Yang
Guoliang Xie
Zhiyuan Liu
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.)
Xian Jiaotong University
Beijing Sojo Electric Co Ltd
Original Assignee
Xian Jiaotong University
Beijing Sojo Electric Co Ltd
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 Xian Jiaotong University, Beijing Sojo Electric Co Ltd filed Critical Xian Jiaotong University
Publication of EP2560179A1 publication Critical patent/EP2560179A1/de
Publication of EP2560179A4 publication Critical patent/EP2560179A4/de
Withdrawn legal-status Critical Current

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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
    • 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
    • H01H2033/66276—Details relating to the mounting of screens in vacuum switches
    • 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
    • H01H2033/66284—Details relating to the electrical field properties of screens in vacuum switches

Definitions

  • the invention refers to a vacuum interrupter, more particularly, to a double-break vacuum interrupter.
  • a conventional vacuum interrupter mostly has a single break.
  • the insulation capability of the vacuum interrupter is not linearly increased with the vacuum gap length, and there is saturation effect.
  • the maximum withstand voltage over each gap may be unequal and the whole breakdown voltage is determined by the gap of the maximum electric field E max . As long as n breaks are not breakdown simultaneously at a moment, the vacuum gaps will present a reliable voltage-withstand capability.
  • the electric field distribution in the vacuum interrupter can be improved by multi-gap effect.
  • the purpose of the invention is to provide a double-break vacuum interrupter, which can increase the static breakdown voltage in the vacuum interrupter.
  • the solution of the invention is a double-break vacuum interrupter including an insulating shell, a static component and a dynamic component located in the insulating shell, wherein a middle isolation shield is provided at a convex edge in the upper part of the cavity of the said insulating shell, the said middle isolation shield is located between the static and the dynamic components, and the said middle isolation shield is a circular ring.
  • the said middle isolation shield is provided at the said convex edge, and a barrel support with an arc section of a small top and big bottom is provided between the middle isolation shield and the convex edge.
  • the double-break vacuum interrupter according to the invention has the circular middle isolation shield provided at the convex edge in the upper part of the cavity of the insulating shell, thus the cavity of the vacuum interrupter changes from a single break to two breaks and the vacuum gap therebetween changes from one to two. Due to the two breaks, the maximum electric field intensity can be transferred from the contact gap to the gap between the middle isolation shield and the static isolation shield or the ground isolation shield, improving the electric field stress of the main isolation gap and increasing the static breakdown voltage of the vacuum interrupter.
  • the schematic structure of the double-break vacuum interrupter according to the invention including an insulating shell 1, a static component 2 and a dynamic component 3 located in the insulating shell 1, at a convex edge 11 in the upper part of the cavity of the insulating shell 1 is provided a barrel support 5 with an arc section of small top and big bottom, an circular middle isolation shield 4 is provided on the barrel support 5, and the circular middle isolation shield 4 is positioned below the static component and above the dynamic component.
  • the vacuum interrupter according to the invention has the circular middle isolation shield 4 positioned at the convex edge 11 in the upper part of the cavity of the insulating shell 1, thus the cavity of the vacuum interrupter changes from a single break to double breaks and the vacuum gap therebetween changes from one to two. Due to the two breaks, the maximum field density can be transferred from the contact gap to the gap between the middle isolation shield and the static isolation shield or the ground isolation shield, improving the electric field stress of the main isolation gap and increasing the static breakdown voltage in the vacuum interrupter.
  • the double-break vacuum interrupter according to the invention is mainly used in a fully enclosed solid ring main unit, which improves the electric field stress of the main isolation gap and increases the static breakdown voltage in the vacuum interrupter; thereby it has high industrial applicability.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
EP10846310.0A 2010-04-15 2010-04-23 Vakuum-lichtbogenlöschungskammer mit doppelten brüchen Withdrawn EP2560179A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201010147463 CN101894706A (zh) 2010-04-15 2010-04-15 双断口真空灭弧室
PCT/CN2010/072105 WO2011127667A1 (zh) 2010-04-15 2010-04-23 双断口真空灭弧室

Publications (2)

Publication Number Publication Date
EP2560179A1 true EP2560179A1 (de) 2013-02-20
EP2560179A4 EP2560179A4 (de) 2014-06-11

Family

ID=43103863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10846310.0A Withdrawn EP2560179A4 (de) 2010-04-15 2010-04-23 Vakuum-lichtbogenlöschungskammer mit doppelten brüchen

Country Status (3)

Country Link
EP (1) EP2560179A4 (de)
CN (1) CN101894706A (de)
WO (1) WO2011127667A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103198970A (zh) * 2013-03-20 2013-07-10 上海华明电力设备制造有限公司 双断口结构的真空泡

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103035441A (zh) * 2012-12-17 2013-04-10 大连理工大学 一字型串联短间隙双断口真空灭弧室

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4216360A (en) * 1978-07-27 1980-08-05 Westinghouse Electric Corp. Low voltage vacuum switch with internal arcing shield
EP0309978A2 (de) * 1987-09-29 1989-04-05 Mitsubishi Denki Kabushiki Kaisha Vakuum-Entladevorrichtung
EP0406944A1 (de) * 1989-07-07 1991-01-09 Holec Systemen En Componenten B.V. Verfahren zum Befestigen eines metallischen Schirmes im Gehäuse eines Vakuumschalters und Vakuumschalter, versehen mit einem solchen Schirm
DE29910718U1 (de) * 1999-06-11 1999-12-09 Siemens Ag Vakuumschaltröhre mit einem Dampfschirm
EP1120386A1 (de) * 2000-01-26 2001-08-01 Ngk Spark Plug Co., Ltd Metallisierter keramischer Körper, Verfahren zu seiner Herstellung, Vakuumschalter und Vakuumgefäss

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233480A (en) * 1978-09-20 1980-11-11 Westinghouse Electric Corp. Low voltage vacuum switch with three internal contacts including a center floating contact
JP2001222935A (ja) * 2000-02-08 2001-08-17 Toshiba Corp 真空開閉装置
FR2841682B1 (fr) * 2002-06-27 2004-12-10 Schneider Electric Ind Sas Ampoule a vide pour un appareil de protection electrique tel un interrupteur ou un disjoncteur
CN101789328B (zh) * 2010-03-25 2012-05-23 北京双杰电气股份有限公司 固体开关柜专用三工位真空灭弧室

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4216360A (en) * 1978-07-27 1980-08-05 Westinghouse Electric Corp. Low voltage vacuum switch with internal arcing shield
EP0309978A2 (de) * 1987-09-29 1989-04-05 Mitsubishi Denki Kabushiki Kaisha Vakuum-Entladevorrichtung
EP0406944A1 (de) * 1989-07-07 1991-01-09 Holec Systemen En Componenten B.V. Verfahren zum Befestigen eines metallischen Schirmes im Gehäuse eines Vakuumschalters und Vakuumschalter, versehen mit einem solchen Schirm
DE29910718U1 (de) * 1999-06-11 1999-12-09 Siemens Ag Vakuumschaltröhre mit einem Dampfschirm
EP1120386A1 (de) * 2000-01-26 2001-08-01 Ngk Spark Plug Co., Ltd Metallisierter keramischer Körper, Verfahren zu seiner Herstellung, Vakuumschalter und Vakuumgefäss

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GIERE ET AL: "Dielectric strength of double and single-break vacuum interrupters: experiments with real HV demonstration bottles", IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, vol. 8, no. 1, 1 March 2001 (2001-03-01), pages 43-47, XP055115109, ISSN: 1070-9878, DOI: 10.1109/94.910424 *
See also references of WO2011127667A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103198970A (zh) * 2013-03-20 2013-07-10 上海华明电力设备制造有限公司 双断口结构的真空泡
CN103198970B (zh) * 2013-03-20 2015-03-18 上海华明电力设备制造有限公司 双断口结构的真空泡

Also Published As

Publication number Publication date
WO2011127667A1 (zh) 2011-10-20
EP2560179A4 (de) 2014-06-11
CN101894706A (zh) 2010-11-24

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