EP2221844A1 - Dispositif de commutation - Google Patents

Dispositif de commutation Download PDF

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Publication number
EP2221844A1
EP2221844A1 EP09153480A EP09153480A EP2221844A1 EP 2221844 A1 EP2221844 A1 EP 2221844A1 EP 09153480 A EP09153480 A EP 09153480A EP 09153480 A EP09153480 A EP 09153480A EP 2221844 A1 EP2221844 A1 EP 2221844A1
Authority
EP
European Patent Office
Prior art keywords
contact
switching device
arcing
main
accordance
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
Application number
EP09153480A
Other languages
German (de)
English (en)
Other versions
EP2221844B1 (fr
Inventor
Walter Holaus
Jadran Kostovich
Miguel Garcia
Urs Kruesi
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 Technology AG
Original Assignee
ABB Technology AG
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 Technology AG filed Critical ABB Technology AG
Priority to EP09153480.0A priority Critical patent/EP2221844B1/fr
Priority to PCT/EP2010/052014 priority patent/WO2010097322A1/fr
Priority to KR1020117019559A priority patent/KR101255697B1/ko
Priority to CN201080009783XA priority patent/CN102428537A/zh
Publication of EP2221844A1 publication Critical patent/EP2221844A1/fr
Application granted granted Critical
Publication of EP2221844B1 publication Critical patent/EP2221844B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H01H33/168—Impedances connected with contacts the impedance being inserted both while closing and while opening the switch
    • 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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/64—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid wherein the break is in gas
    • 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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H01H33/161—Variable impedances
    • H01H2033/163—Variable impedances using PTC elements

Definitions

  • the present disclosure generally relates to a switching device.
  • Switching devices like disconnectors, in high-voltage gas-insulated switchgear above 420 kV can be equipped with a resistor that limits the very fast transients (VFT) that may be generated during the closing and the opening of the disconnector.
  • VFT very fast transients
  • this resistor is designed as bulk ohmic resistor with high energy absorption cabability and placed on the fixed contact side. Resistance values of several 100 Ohms up to 1 kOhms are applied. Using such resistors inside the fixed contact requires to nearly double the stroke of the moving part, as the voltage drop along this resistor is approximately as high as the rated voltage.
  • a switching device which includes a housing filled with an insulating gas, a first contact element including a first main contact and a first arcing contact, and a moveable second contact element including a second main contact and second arcing contact, said second contact element being movable from a first position, where the first and the second main contacts as well as the first and the second arcing contacts are in direct contact, to a second position, where neither the first and the second main contacts nor the first and the second arcing contacts are in direct contact, said second contact element further including an impedance element electrically connecting the second main contact with the second arcing contact.
  • an impedance element is added to the moving contact of the switching device.
  • the impedance element will be active during the closing and the opening of the switching device to reduce VFT peak and rate-of-rise.
  • the impedance element will be active to improve the bus transfer switching behavior of the switching device.
  • the impedance may include an inductive element and/or may include a resistor element, both inside the moving contact of the switching device.
  • the resistance of the resistive element lies in the range between 0,01 and 10,0 Ohm.
  • the inductivity of the inductive element lies in the range between 1,0 and 50,0 nH. Due to the low values of the resistor and the inductance, only a small insulating gap between the arcing contact and the main contact on the moving contact element and therefore no additional stroke for the moving contact element will be required.
  • the resistive element exhibits a positive temperature coefficient.
  • the resistive element exhibits a skin effect.
  • the resistive element comprises a ceramic material. A proper choice of resistor material allows to make use of the skin effect in the resistor, so the resistance value is higher for VFT damping at high frequencies than it is during opening at rated frequency.
  • the inductive element and the resistive element integrally form a single impedance element.
  • the voltage drop over the impedance element is lower than 1/10 of the rated voltage of the switching device.
  • high-voltage switching devices include high-voltage and high-power switches, switches with or without arc quenching, disconnectors, grounding devices as well as further switching devices from the field of high-voltage technology.
  • Fig. 1 shows a switching device according to the invention in an open position.
  • the switching device illustrated in Fig. 1 is in the form of a module of a gas-insulated, metal-encapsulated switchgear assembly and has a metal housing 1 filled with insulating gas and having two main openings 2 and 3.
  • the openings 2 and 3 are each sealed in a gas-tight manner by a barrier insulator, which, in a manner which is electrically insulated from the housing 1, in each case supports a current conductor 5 and 6, respectively, which can have a high voltage applied to it.
  • barrier insulators post insulators with gas passage openings may also be used, if appropriate.
  • the current conductor 6 is connected to a first contact element 10 which includes a first main contact 12 and a first arcing contact 14 (see Fig. 2 ).
  • the current conductor 5 is connected to a second contact element 20 which includes a second main contact 22 as well as a second arcing contact 24 and which is moveable along the horizontal axis of Fig. 1 .
  • a conductor tube 21 or a hollow carrier 21 is used so as to conduct current to the current conductor 5, said conductor tube 21 or hollow carrier 21 forming a portion of the contact element 20, and constantly forming a current transfer to the current conductor 5, irrespective of its position, via two sliding contacts (not shown).
  • the switching device includes a drive element 7 to move the second contact element 20 from a first position, where the first and the second main contacts 12, 22 as well as the first and the second arcing contacts 14, 24 are in direct contact, to a second position, where neither the first and the second main contacts 12, 22 nor the first and the second arcing contacts 14, 24 are in direct contact.
  • the switching device includes first contact element 10 which is fixed to current conductor 6.
  • the first contact element 10 includes a first main contact 12 which has the form of a contact spring.
  • the first contact element 10 includes a first arcing contact 14 supported by a conductive spring element 16.
  • a shield 18 is provided around the first contact element 10 in order to influence the field distribution in the vicinity of the first contact element 10.
  • the moveable second contact element 20 includes a second main contact 22 formed by a portion of the conductor tube 21 and a second arcing contact 24 formed at the front portion of the second contact element 20.
  • An additional shield (not shown) may also be provided around the second contact element 20.
  • the second contact element 20 includes an impedance element 25 electrically connecting the second main contact 22 with the second arcing contact 24.
  • the impedance element 25 is placed inside the moving contact between the main current contact 22 and the arcing contact 24.
  • the impedance element 25 includes the inductive element and a resistive element, whereby the inductive element and the resistive element integrally form a single impedance element 25.
  • the desired inductance value can be chosen, for example, by selecting an appropriate wire geometry.
  • the resistive element exhibits a positive temperature coefficient and/or a skin effect.
  • the voltage drop along the impedance element remains below approx. 1/10th of the rated voltage.
  • Fig. 2 illustrates the switching device in a first position, where the first and the second main contacts 12, 22 as well as the first and the second arcing contacts 14, 24 are in direct contact.
  • Fig. 3 illustrates the switching device in a second position, where neither the first and the second main contacts 12, 22 nor the first and the second arcing contacts 14, 24 are in direct contact.
  • Fig. 4 shows a schematic circuit diagram of the switching device according to Fig. 1 .
  • the first and the second main contacts 12, 22 together form the main switch 31 and the first and the second arcing contacts 14, 24 form the arcing switch 32.
  • the impedance element 25 is composed of the PTC resistor 35 and the inductance 36.
  • the arcing switch 32, the resistor 35 and the inductance 36 are connected in series whereas the main switch 31 is connected in parallel to the arcing switch.
  • the impedance element 25 will act differently for closing and opening of the switching device.
  • VFT very fast transients
  • the inductive element is also active and limits the rate-of-rise of VFT. By applying small resistor and inductance values, only 10% to 20 % of the VFT peak voltages will be damped but this damping is sufficient to keep the VFT peak well below the breakdowns strength of GIS equipment.
  • first and second arcing contacts will open after the first and second main contacts. Due to the low frequencies (e.g. 50 or 60Hz) involved during the bus transfer after the opening of the main contacts, only the resistive element is active. During the bus-transfer switching, the bus transfer current will generate a voltage drop on the small resistor which is several 100 V. This voltage is already higher than the arc voltage. Therefore, the bus transfer time and the corresponding contact wear will be strongly reduced. It is proposed to use resistor material with positive temperature coefficient PTC. Therefore, the energy dissipated during opening will increase the resistance value and further improves bus transfer capability.
  • PTC positive temperature coefficient

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
EP09153480.0A 2009-02-24 2009-02-24 Dispositif de commutation Not-in-force EP2221844B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP09153480.0A EP2221844B1 (fr) 2009-02-24 2009-02-24 Dispositif de commutation
PCT/EP2010/052014 WO2010097322A1 (fr) 2009-02-24 2010-02-18 Dispositif de commutation
KR1020117019559A KR101255697B1 (ko) 2009-02-24 2010-02-18 스위칭 디바이스
CN201080009783XA CN102428537A (zh) 2009-02-24 2010-02-18 开关装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09153480.0A EP2221844B1 (fr) 2009-02-24 2009-02-24 Dispositif de commutation

Publications (2)

Publication Number Publication Date
EP2221844A1 true EP2221844A1 (fr) 2010-08-25
EP2221844B1 EP2221844B1 (fr) 2013-10-09

Family

ID=40670601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09153480.0A Not-in-force EP2221844B1 (fr) 2009-02-24 2009-02-24 Dispositif de commutation

Country Status (4)

Country Link
EP (1) EP2221844B1 (fr)
KR (1) KR101255697B1 (fr)
CN (1) CN102428537A (fr)
WO (1) WO2010097322A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012072410A1 (fr) * 2010-12-02 2012-06-07 Siemens Aktiengesellschaft Montage de contacts électriques
CN104064398A (zh) * 2014-07-01 2014-09-24 王永法 真空灭弧室的触头
EP2551876A3 (fr) * 2011-07-25 2014-10-15 LSIS Co., Ltd. Installation de commutation isolée du gaz
EP3070727A1 (fr) * 2015-03-20 2016-09-21 Siemens Aktiengesellschaft Dispositif sectionneur de déconnexion ou connexion électrique haute-tension
EP3226274A1 (fr) * 2016-03-31 2017-10-04 Siemens Aktiengesellschaft Sectionneur à division d'arc adapté aux moyennes et hautes tensions et méthode de déconnexion au moyen dudit sectionneur
WO2017182073A1 (fr) * 2016-04-20 2017-10-26 General Electric Technology Gmbh Sectionneur ccht

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5629589B2 (ja) * 2011-01-19 2014-11-19 株式会社東芝 開閉器
CN111105951B (zh) * 2018-10-29 2022-07-05 平高集团有限公司 高压开关及其电阻静触头

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5271054U (fr) * 1975-11-21 1977-05-27
JPS5540959U (fr) * 1978-09-11 1980-03-15
JPS6441130A (en) * 1987-08-06 1989-02-13 Toshiba Corp Gas insulated electric apparatus
EP0348645A2 (fr) * 1988-07-01 1990-01-03 Licentia Patent-Verwaltungs-GmbH Dispositif pour la coupure et le branchement rapide de petits courants pour sectionneurs d'appareillage de commutation entièrement isolé
JPH025244U (fr) * 1988-06-23 1990-01-12
EP0398211A1 (fr) * 1989-05-17 1990-11-22 Gec Alsthom Sa Disjoncteur à haute tension à gaz diélectrique de soufflage
JPH0381919A (ja) * 1989-08-25 1991-04-08 Toshiba Corp ガス絶縁開閉器
US5764129A (en) * 1995-03-27 1998-06-09 Hitachi, Ltd. Ceramic resistor, production method thereof, neutral grounding resistor and circuit breaker

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55127346U (fr) * 1979-03-05 1980-09-09
JPS55127346A (en) * 1979-03-26 1980-10-02 Yasuzo Uchida Preparation of derivative of dimethyl-octa-2,7-dienyl-amine
CN1040810C (zh) * 1993-07-06 1998-11-18 郑江 无弧式高压开关的触头机构
CN100386833C (zh) * 2005-03-28 2008-05-07 西安杉瑞机电科技有限责任公司 限制气体绝缘开关内部快速暂态过电压的方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5271054U (fr) * 1975-11-21 1977-05-27
JPS5540959U (fr) * 1978-09-11 1980-03-15
JPS6441130A (en) * 1987-08-06 1989-02-13 Toshiba Corp Gas insulated electric apparatus
JPH025244U (fr) * 1988-06-23 1990-01-12
EP0348645A2 (fr) * 1988-07-01 1990-01-03 Licentia Patent-Verwaltungs-GmbH Dispositif pour la coupure et le branchement rapide de petits courants pour sectionneurs d'appareillage de commutation entièrement isolé
EP0398211A1 (fr) * 1989-05-17 1990-11-22 Gec Alsthom Sa Disjoncteur à haute tension à gaz diélectrique de soufflage
JPH0381919A (ja) * 1989-08-25 1991-04-08 Toshiba Corp ガス絶縁開閉器
US5764129A (en) * 1995-03-27 1998-06-09 Hitachi, Ltd. Ceramic resistor, production method thereof, neutral grounding resistor and circuit breaker

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2599777C2 (ru) * 2010-12-02 2016-10-20 Сименс Акциенгезелльшафт Электрическое контактное устройство
CN103238196A (zh) * 2010-12-02 2013-08-07 西门子公司 电接触装置
CN103238196B (zh) * 2010-12-02 2015-09-09 西门子公司 电接触装置
US9524837B2 (en) 2010-12-02 2016-12-20 Siemens Aktiengesellschaft Electrical contact arrangement
WO2012072410A1 (fr) * 2010-12-02 2012-06-07 Siemens Aktiengesellschaft Montage de contacts électriques
EP2551876A3 (fr) * 2011-07-25 2014-10-15 LSIS Co., Ltd. Installation de commutation isolée du gaz
CN104064398A (zh) * 2014-07-01 2014-09-24 王永法 真空灭弧室的触头
WO2016150637A1 (fr) * 2015-03-20 2016-09-29 Siemens Aktiengesellschaft Dispositif sectionneur de déconnexion ou connexion électrique haute-tension
EP3070727A1 (fr) * 2015-03-20 2016-09-21 Siemens Aktiengesellschaft Dispositif sectionneur de déconnexion ou connexion électrique haute-tension
EP3226274A1 (fr) * 2016-03-31 2017-10-04 Siemens Aktiengesellschaft Sectionneur à division d'arc adapté aux moyennes et hautes tensions et méthode de déconnexion au moyen dudit sectionneur
WO2017182073A1 (fr) * 2016-04-20 2017-10-26 General Electric Technology Gmbh Sectionneur ccht
CN109074972A (zh) * 2016-04-20 2018-12-21 通用电器技术有限公司 Hvdc隔离开关
CN109074972B (zh) * 2016-04-20 2019-12-27 通用电器技术有限公司 Hvdc隔离开关

Also Published As

Publication number Publication date
KR20110110815A (ko) 2011-10-07
EP2221844B1 (fr) 2013-10-09
KR101255697B1 (ko) 2013-04-17
CN102428537A (zh) 2012-04-25
WO2010097322A1 (fr) 2010-09-02

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