EP1671343B1 - Vakuum-Schaltgeräteantrieb - Google Patents

Vakuum-Schaltgeräteantrieb Download PDF

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Publication number
EP1671343B1
EP1671343B1 EP04787055A EP04787055A EP1671343B1 EP 1671343 B1 EP1671343 B1 EP 1671343B1 EP 04787055 A EP04787055 A EP 04787055A EP 04787055 A EP04787055 A EP 04787055A EP 1671343 B1 EP1671343 B1 EP 1671343B1
Authority
EP
European Patent Office
Prior art keywords
switching
drive according
drive
fluid medium
energy
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
EP04787055A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1671343A1 (de
Inventor
Werner Hartmann
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP1671343A1 publication Critical patent/EP1671343A1/de
Application granted granted Critical
Publication of EP1671343B1 publication Critical patent/EP1671343B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H2071/147—Thermal release by expansion of a fluid
    • 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
    • H01H33/666—Operating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H39/004—Closing switches

Definitions

  • the invention relates to a vacuum switching device drive in which stored energy is converted into a fast switching movement and activates a switching device.
  • drives with high switching speeds are required in the area of medium-voltage switching devices.
  • a switching operation is triggered electronically and completed within a few milliseconds to limit the arc fault energy.
  • drive principles with high drive power and energy are needed.
  • the latter explosion drives are known in different training.
  • this describes DE 35 45 327 Such a drive that works with an explosive gas mixture.
  • the DE 102 05 369 A1 and the DE 297 23 872 U1 include such switching elements, in which pyrotechnic materials are used to break the circuit.
  • Similar drive devices are from the GB 2 016 210 A and the US 3,700,970 A known, in such Facilities in addition to the rapid opening of the contacts equally a blowing out of the arc takes place with a quenching medium.
  • an opening switch which is located in a housing with a drive medium, wherein the drive medium evaporates by an arc discharge, which provides energy for opening the contacts and also forms an extinguishing gas.
  • the medium to be evaporated or the resulting vapor is arranged in the switching area, which is not possible with vacuum switching devices.
  • a suitable drive medium for example water, but also other suitable liquid or gaseous media, very quickly - in the sub-millisecond range to millisecond range - to heat and evaporate and thereby explosively generated gas pressure to drive to use a switching contact.
  • the entire drive energy necessary for the switching operation is thereby supplied electrically; Therefore, this method is reversible and, apart from wear and tear, not limited in the number of switching operations as other methods in which Hauptentladenikes this Hilfszündimpuls can also be applied directly to one of the main electrodes and thus be dispensed with an auxiliary electrode.
  • Advantages of the invention are, in particular, the repeating capability with complete recondensation / recombination of the working medium, a considerably longer service life than with an explosion drive, elimination of the need for replacement or storage of explosive cartridges.
  • the drive energy can, under certain circumstances, be taken directly from the 230 V network, so that no energy storage is necessary.
  • a particular advantage of the invention is that the triggering is completely electronic - i. without electromechanically moving parts - takes place, so that no additional mechanical release delay must be taken into account.
  • the switching is governed at voltages of several 100 V and peak currents of several 100 A to 1000 A in the range of less millisecond current flow time of semiconductor switching elements such as thyristors and IGBT's, so that no age-sensitive components such as interrupters or electromechanical auxiliary switches are needed.
  • FIG. 1 1 represents a vacuum interrupter in which a fixed contact is rigidly arranged via a fixed contact pin.
  • a moving contact is arranged via an axially displaceable contact pin. Via a drive, the moving contact is brought from the illustrated "open” position to the "closed” position.
  • FIG. 1 results in the advantage of the drive according to the invention over a known explosive-powered drive.
  • the explosive-filled detonator according to the prior art is here replaced by a pressure vessel 30 which is filled with a suitable medium, in particular water.
  • suitable media include fluids, especially liquids such as the already mentioned water, but also inert gases, such as nitrogen or argon, in question.
  • the fluid may contain ion conducting additives.
  • the switch shown in the picture can be in the form of an IGBT or power MOSFETs or as a thyristor with freewheeling diode.
  • the peak electrical power is so small (some 10 kW) that it can be taken directly in the form of permissible short-circuit load the 230 V network.
  • means are provided for latching the moving contact in its end position, as appropriate, or returning it to its starting position.
  • This can be z. B. by mechanical pawls or even via permanent magnets.
  • the additional, low-energy trigger pulse can bring about an additional trigger electrode first a partial discharge gap for breakthrough, which then follows the main spark gap with a short ignition delay of only a few microseconds.
  • the voltage-side electrode of the main discharge circuit for high frequencies may be inductively decoupled from the main discharge circuit, so that a high-frequency high-voltage auxiliary pulse can be coupled directly to the spark electrode and leads to a low-distortion breakthrough of the spark gap.
  • FIG. 1 referred to above in detail electrohydraulic drive referred to as 30. He acts on the axially movable bolt, wherein in a conventional manner, a mechanical Ver / Entklinkungsmechanismus 40 is present.
  • the Ver / Entklinkungsmechanismus 40 is slidably mounted on a stationary holding plate 41 against a Verklinkungsfeder 42 and acts via a pawl 43 on the axially movable pin 20 with receiving element 24 for the pawl 42. It is an opening spring 45 is provided in FIG. 2 curious and in FIG. 3 is relaxed.
  • FIG. 2 the electro-hydraulically driven moving contact 21 is shown in the closed, mechanically latched position.
  • the existing according to the prior art opening spring 45 is already stretched.
  • the energy for tensioning the opening spring 45 is in the illustrated embodiment of the electro-hydraulic drive 30, 31, 32 according to FIG. 1 applied.
  • the pawl 42 Upon actuation of the Entklinkungsmechanismus' 40, the pawl 42 is released, the tensioned opening spring 45 leads the moving contact 21 in the (opened) initial state.
  • FIG. 3 is the electro-hydraulically driven moving contact 21 shown in the open, mechanically unlatched position in which the opening spring 45 is relaxed.
  • Ver / unlatching means that work magnetically, for which electromagnets are suitable.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Relay Circuits (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Circuit Breakers (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Vacuum Packaging (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)
EP04787055A 2003-09-30 2004-09-29 Vakuum-Schaltgeräteantrieb Expired - Lifetime EP1671343B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10345502A DE10345502A1 (de) 2003-09-30 2003-09-30 Antrieb für ein Schaltgerät
PCT/EP2004/010902 WO2005034161A1 (de) 2003-09-30 2004-09-29 Antrieb für ein schaltgerät

Publications (2)

Publication Number Publication Date
EP1671343A1 EP1671343A1 (de) 2006-06-21
EP1671343B1 true EP1671343B1 (de) 2008-12-31

Family

ID=34399108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04787055A Expired - Lifetime EP1671343B1 (de) 2003-09-30 2004-09-29 Vakuum-Schaltgeräteantrieb

Country Status (7)

Country Link
US (1) US20070102269A1 (zh)
EP (1) EP1671343B1 (zh)
JP (1) JP2007507837A (zh)
CN (1) CN1860573A (zh)
AT (1) ATE419639T1 (zh)
DE (2) DE10345502A1 (zh)
WO (1) WO2005034161A1 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007050377A1 (de) * 2007-10-22 2009-04-23 Daimler Ag Brennstoffzellensystem mit zumindest einer Brennstoffzelle
KR20100115742A (ko) * 2008-01-22 2010-10-28 지멘스 악티엔게젤샤프트 불꽃 점화식 개시 수단을 구비한 단락 장치
DE102008059670B3 (de) * 2008-11-26 2010-06-17 Siemens Aktiengesellschaft Vakuumschalter mit beidseitig fest verschienten Anschlussklemmen
DE102010010669A1 (de) 2010-03-04 2011-09-08 Siemens Aktiengesellschaft Schalter mit beidseitig fest verschienten Anschlussklemmen
US10109444B2 (en) * 2013-12-17 2018-10-23 Siemens Aktiengesellschaft Electronic module for protecting a HVDC converter from current surges of energy discharges from a capacitor of the converter
FR3075460B1 (fr) * 2017-12-14 2020-01-10 Schneider Electric Industries Sas Appareil de protection electrique comportant un systeme d'actionnement pyrotechnique
GB2582307A (en) * 2019-03-18 2020-09-23 Eaton Intelligent Power Ltd Switching device for fast disconnection of short-circuit currents
EP3748661A1 (en) * 2019-06-07 2020-12-09 ABB Schweiz AG Accessory device for a medium voltage contactor
CN111146048A (zh) * 2020-01-13 2020-05-12 吴妍佩 一种自恢复直流熔断器
CN114429883B (zh) * 2022-01-06 2023-10-20 西北核技术研究所 一种兆伏级水开关及其安装、更换方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE892018C (de) * 1953-08-20 Voigt IS. Haeffner A. G., Frankfurt/M Uberstroinausloser
DE607795C (de) * 1927-12-31 1935-01-08 Sigwart Ruppel Dipl Ing Schaltkapsel
DE1196752B (de) * 1955-01-13 1965-07-15 Siemens Ag Vakuumschalter
GB1240035A (en) * 1968-01-20 1971-07-21 Fuji Electric Co Ltd Electric circuit breaker
US4090229A (en) * 1976-09-30 1978-05-16 Becton, Dickinson Electronics Company Capacitive key for keyboard
US4275431A (en) * 1978-02-27 1981-06-23 Westinghouse Electric Corp. High-voltage single-shot circuit-protecting device with fuse-like characteristics and having a chemical operating mechanism
DE3545327A1 (de) * 1985-12-20 1987-06-25 Bbc Brown Boveri & Cie Antrieb fuer einen elektrischen schalter
JPH055623Y2 (zh) * 1988-04-08 1993-02-15
FR2742575B1 (fr) * 1995-12-19 1998-01-09 Europ Equip Menager Dispositif a touche sensitive
DE29723872U1 (de) * 1997-11-06 1999-07-08 Lell, Peter, Dr.-Ing., 85368 Moosburg Notabschalter für elektrische Stromkreise
US6576526B2 (en) * 2001-07-09 2003-06-10 Chartered Semiconductor Manufacturing Ltd. Darc layer for MIM process integration
DE10205369B4 (de) * 2002-02-10 2004-03-25 Lell, Peter, Dr.-Ing. Elektrische Sicherung, insbesondere pyrotechnische Sicherung für das Unterbrechen hoher Stromstärken in elektrischen Schaltkreisen

Also Published As

Publication number Publication date
ATE419639T1 (de) 2009-01-15
US20070102269A1 (en) 2007-05-10
DE10345502A1 (de) 2005-06-02
CN1860573A (zh) 2006-11-08
JP2007507837A (ja) 2007-03-29
EP1671343A1 (de) 2006-06-21
WO2005034161A1 (de) 2005-04-14
DE502004008790D1 (de) 2009-02-12

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