EP0742569B1 - Löschgasabgebender Werkstoff und Druckgasschalter mit einem solchen Werkstoff - Google Patents

Löschgasabgebender Werkstoff und Druckgasschalter mit einem solchen Werkstoff Download PDF

Info

Publication number
EP0742569B1
EP0742569B1 EP96810260A EP96810260A EP0742569B1 EP 0742569 B1 EP0742569 B1 EP 0742569B1 EP 96810260 A EP96810260 A EP 96810260A EP 96810260 A EP96810260 A EP 96810260A EP 0742569 B1 EP0742569 B1 EP 0742569B1
Authority
EP
European Patent Office
Prior art keywords
arc
material according
extinguishing gas
matrix
nozzle
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.)
Revoked
Application number
EP96810260A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0742569A2 (de
EP0742569A3 (de
Inventor
Bodo Dr. Brühl
Elias Dr. Jülke
Kurt Dr. Kaltenegger
Lutz Dr. Niemeyer
Leopold Ritzer
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7761804&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0742569(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ABB Research Ltd Switzerland, ABB Research Ltd Sweden filed Critical ABB Research Ltd Switzerland
Publication of EP0742569A2 publication Critical patent/EP0742569A2/de
Publication of EP0742569A3 publication Critical patent/EP0742569A3/de
Application granted granted Critical
Publication of EP0742569B1 publication Critical patent/EP0742569B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

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
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7076—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by the use of special materials

Definitions

  • the invention is based on an electrical insulating and extinguishing gas when exposed to an arc emitting material based on an insulating material matrix and a filler embedded in the matrix. At the same time concerns the invention also a switching arc with quenching gas blowing gas switch, in which such a material in areas with high dielectric and thermal loads is used.
  • Extinguishing gas blowing of the switching arc are made in dielectric and zones subject to high thermal loads, usually materials based on polytetrafluoroethylene (PTFE). These materials erode when exposed to the switching arc and give off gas, preferably based on Fluorine, which favors the extinguishing of the switching arc.
  • PTFE polytetrafluoroethylene
  • Fluorine Fluorine
  • Components based on such materials are usually used by sintering compacts made of PTFE and, if necessary provided filler powder at temperatures typically between 340 and 350 ° C and subsequent cooling of the sintered body for a specially adapted program in which the Crystallinity of the PTFE and thus the dimensional stability and Dimensional accuracy of the components are maintained, manufactured.
  • DE 27 08 030 Al describes an insulating nozzle for a pressure gas switch described, which is based on a material an electrically isolating and arcing Extinguishing gas-releasing plastic, such as PTFE, and an in there is the plastic embedded powder filler, such as graphite, carbon black, titanium dioxide, calcium fluoride or one Alumina, such as corundum in particular.
  • a material an electrically isolating and arcing Extinguishing gas-releasing plastic such as PTFE
  • plastic embedded powder filler such as graphite, carbon black, titanium dioxide, calcium fluoride or one Alumina, such as corundum in particular.
  • the filler With this insulating material nozzle, the filler largely absorbs the spectrum emitted by the switching arc and the visible spectrum as well as large areas of the infrared and ultraviolet range comprehensive electromagnetic radiation. This will make a Radiation penetrates largely inside the insulating material nozzle prevented. Such a nozzle is therefore characterized a slight burn. At the same time, however, such a nozzle can even a relatively small percentage of arc quenching Develop gases and vapors.
  • the material according to the invention has a non-linear Burning behavior on. Is the material from this material Arc emitted by radiation or hot gas formation Power relatively small, so the burn remains low and will accordingly, practically hardly any extinguishing gas from the cells released. On the other hand is the one emitted by the arc Power, such as when switching a heavy short-circuit current, the cells become large, starting from the arc exposed surface, layer by layer and is so ever depending on the arc strength and duration selectively additional quenching gas activated in disproportionate amount.
  • This nonlinear combustion behavior is achieved by the cellular structure of the material with extinguishing agent Microcapsules created by an arc Erosion mechanism are destroyed and encapsulated Activate the material used to extinguish the fire. Because here the individual capsules are removed in layers from the outside occurs inside, the erosion mechanism comes when falling below the threshold value of the arc power to a halt.
  • the erosion mechanisms listed under (a) and (b) require the arrangement of the extinguishing gas releasing material in the direct radiation field of the arc.
  • the erosion mechanisms listed under (c) - (e) can also occur in extinguishing gas-emitting material, which outside the direct radiation field (field of view) of the Arc is arranged.
  • extinguishing gas-emitting material which outside the direct radiation field (field of view) of the Arc is arranged.
  • the material can then heat the lining of the outside of the field of view of the arc lying heating volume serve.
  • On during a switching process by arc heating generated in the arc extinguishing zone and in the heating volume guided hot gas flow then sets in the heating volume by opening the cells release fresh extinguishing gas, causing a large amount of high quality quenching gas for arc quenching Available.
  • Suitable material for filling the cells has arc-extinguishing properties or forms an arc-extinguishing gas when exposed to an arc.
  • Preferred materials are liquid or gaseous fluorine compounds based on nitrogen, oxygen, hydrogen, carbon and / or sulfur with the highest possible density and the lowest possible carbon content. Perfluorinated liquids are particularly preferred because of their high fluorine content. It is advantageous if the liquid fluorine compounds have a boiling point greater than 100 ° C.
  • explosives and explosives for example NH 4 NO 3 , which are phlegmatized in a suitable matrix insulating material, for example PTFE, can also be used.
  • the filler can a powder is formed, the particles of which are embedded into the insulating material matrix mainly as microcapsules Particle sizes up to 1 mm are formed.
  • the storage the microcapsule insulating material matrix is preferred by hardening a molding compound, in particular based on a Epoxy, a polyester, acrylic or polyurethane resin, educated. Instead of storing mostly microcapsules
  • the material can also contain powder in the matrix formed by sintering or gluing the powder particles become.
  • the cell walls of the typically 5 to 100 ⁇ m large microcapsules are predominantly of a polymer, a ceramic or Glass formed.
  • Polymers are particularly suitable materials based on a melamine-formaldehyde resin, an acrylic resin or a polyurethane resin.
  • Additional fillers for example graphite powder, can be added to the insulating material matrix in order to improve the density.
  • the burning behavior of the material can be regulated by adding long-term stable dyes (lifespan> 20 years) in the insulating material matrix and / or in the filler. A proportion of 0.01 to 1 percent by weight MoS 2 in the material has proven itself as a dye.
  • Extinguishing gas stabilizing the density of a switching arc heated extinguishing gas in the phase before and after the zero current crossing over a dielectric critical value and the partial compensation of the outflowing Extinguishing gas quantities. This will make it more or less the same Chamber dimensioning a higher breaking capacity reached.
  • the material is at least partially serves to guide the extinguishing gas flow and in places of Extinguishing gas guide is arranged on which the material of the Radiation from the arc and the thermal effect of Arc gases is exposed.
  • the material of the lining upstream and / or downstream the bottleneck of an isolating nozzle of the switch flow-carrying parts It is an additional advantage that Material also outside the actual extinguishing zone of the switch to arrange, and him as the lining of an upstream the nozzle constriction arranged volume for storing arc-heated quenching gas to be used.
  • the quenching chamber shown in FIG. 1 is arranged in a housing of a medium-voltage circuit breaker for nominal voltages of typically 10 to 40 kV, which is not shown and is filled with an insulating and arc-quenching gas, such as SF 6 of, for example, 4 to 6 bar pressure.
  • the arcing chamber contains two switching elements 3 and 4, each connected to a current source via a current connection 1 or 2.
  • the switching element 3 is arranged in a fixed manner and is contacted by the switching element 4 which can be moved along an axis 5 in the switched-on state (not shown).
  • the wall 6 of the quenching chamber encloses a toroidal heating volume 7, which is delimited on its inner surface by an essentially hollow cylindrical insulator 8 and downwards by an exposed end surface of an insulating nozzle 9.
  • the exposed end faces of the insulator 8 and the insulating nozzle 9 delimit an annular channel 10.
  • the insulating nozzle 9 has an axially aligned bore.
  • the bore forms a tubular constriction 12 with a length L and a diameter D and widens downstream of the constriction 12 to a diffuser leading into an expansion space 13.
  • the insulating nozzle 9, but at least one of the action of Switching arc exposed section 14 of the nozzle, and if necessary, also the insulator 8 - at least in the area its end face delimiting the channel 10 - and parts of one Lining 15 of the heating volume 7 are from an extinguishing gas dispenser Material formed with a cellular structure, at which the vast majority of cells with an arc extinguishing Material having properties is filled or contains a material that the arcing Arc extinguishing gas forms.
  • the components (a) and (b) are mixed and mixed using suitable Spray drying process a dry containing microcapsules and free-flowing powder.
  • the microcapsules point Grain sizes from 6 to 10 ⁇ m and each consist of an MF envelope which carries the perfluorinated liquid.
  • the Quantities of the two starting components are like this determines that the microcapsules are approximately 80 to 90 weight percent Contain liquid and about 10 to 20 percent by weight MF.
  • component (c) 100 parts by weight of component (c), 80 parts by weight of Component (d) and a 180 parts by weight of this powder extensive filler were mixed together.
  • the resulting mixture was evacuated and placed in a vacuum Poured the mold in which it gelled and at about 80 ° C for 4 hours for about 16h at 140 ° C to the material or to a practical ready-to-use component, for example an insulating material nozzle, has been cured.
  • Such an insulating nozzle 9 was manufactured in the Extinguishing chamber installed according to Fig. 1 and the pressure gas switch at Short-circuit currents of approx. 25 kA repeatedly switched off. Corresponding circuits were made with the same arcing chamber executed, but in the place of micro-encapsulated Material existing insulating nozzle 9 nozzles of the same geometric Dimensions made of PTFE and microencapsulation-free epoxy were used.
  • the insulating material formed from components (c) and (d) is transparent, the radiation from the switching arc if necessary, several millimeters deep into the insulating material nozzle 9 penetrate.
  • the component (s) when mixing the starting components the penetration depth of the arc radiation and thus also the Burning depth of the insulating nozzle 9 during a switching operation reduced by a few tenths of a millimeter.
  • the pressure build-up in the heating volume 7 of the pressure gas switch is shown with an insulating material nozzle 9 consisting of the microencapsulated material (B) as a function of the number of shutdowns.
  • insulating material nozzle 9 consisting of the microencapsulated material (B) as a function of the number of shutdowns.
  • corresponding comparative data for a compressed gas switch with an insulating nozzle made of an epoxy (A) filled with Al 2 O 3 are shown according to the prior art.
  • the switch with the insulating material nozzle 9, which is made of microencapsulated material, can be seen after several switch-offs by a significantly better pressure build-up.

Landscapes

  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Organic Insulating Materials (AREA)
EP96810260A 1995-05-12 1996-04-23 Löschgasabgebender Werkstoff und Druckgasschalter mit einem solchen Werkstoff Revoked EP0742569B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19517540A DE19517540A1 (de) 1995-05-12 1995-05-12 Löschgasabgebender Werkstoff und Druckgasschalter mit einem solchen Werkstoff
DE19517540 1995-05-12

Publications (3)

Publication Number Publication Date
EP0742569A2 EP0742569A2 (de) 1996-11-13
EP0742569A3 EP0742569A3 (de) 1998-03-25
EP0742569B1 true EP0742569B1 (de) 2002-06-12

Family

ID=7761804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810260A Revoked EP0742569B1 (de) 1995-05-12 1996-04-23 Löschgasabgebender Werkstoff und Druckgasschalter mit einem solchen Werkstoff

Country Status (7)

Country Link
US (1) US5828026A (ko)
EP (1) EP0742569B1 (ko)
JP (1) JPH08321235A (ko)
KR (1) KR960042799A (ko)
CN (1) CN1071482C (ko)
CA (1) CA2173190A1 (ko)
DE (2) DE19517540A1 (ko)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19816506B4 (de) * 1998-04-14 2008-04-30 Abb Research Ltd. Leistungsschalter
DE19816505A1 (de) * 1998-04-14 1999-10-21 Asea Brown Boveri Leistungsschalter
DE19832709C5 (de) * 1998-07-14 2006-05-11 Siemens Ag Hochspannungsleistungsschalter mit einer Unterbrechereinheit
FR2815765B1 (fr) * 2000-10-23 2003-04-11 Alstom Buse isolante pour disjoncteur a soufflage d'arc
NL1020224C2 (nl) * 2002-03-21 2003-09-23 Holec Holland Nv Boogbestendige kast voor schakelsysteem.
US20060006144A1 (en) * 2004-07-09 2006-01-12 S & C Electric Co. Arc-extinguishing composition and articles manufactured therefrom
US20080237194A1 (en) * 2004-07-09 2008-10-02 S & C Electric Co. Metal-hydrate containing arc-extinguishing compositions and methods
DE102005019424A1 (de) * 2005-04-25 2006-11-02 Abb Technology Ag Lasttrennschalter
EP1970931A1 (de) * 2007-03-15 2008-09-17 ABB Research LTD Hochspannungsleistungsschalter
JP5286569B2 (ja) * 2009-03-27 2013-09-11 株式会社日立製作所 パッファ型ガス遮断器
JP5286537B2 (ja) * 2009-09-28 2013-09-11 三菱電機株式会社 消弧用絶縁成型物、および、それを用いた回路遮断器
FR2952223B1 (fr) * 2009-11-03 2018-09-21 Schneider Electric Energy France Utilisation de materiaux composites specifiques en tant que materiaux d'extinction d'arc electrique dans des appareils electriques
JP5479164B2 (ja) 2010-03-08 2014-04-23 キヤノン株式会社 画像判定装置および画像判定方法
EP2597663A1 (en) * 2011-11-28 2013-05-29 Eaton Industries (Netherlands) B.V. Arc energy absorber
CN102820168B (zh) * 2012-07-09 2015-10-28 平高集团有限公司 拉杆接头及具有该拉杆接头的高压断路器灭弧室传动拉杆
US9475906B2 (en) 2013-02-07 2016-10-25 Mitsubishi Electric Corporation Arc-extinguishing insulation material molded product and gas circuit breaker including the same
US9064659B2 (en) 2013-03-12 2015-06-23 Sensata Technologies Massachusetts, Inc. Circuit interruption device with constrictive arc extinguishing feature
FR3011976B1 (fr) * 2013-10-10 2015-12-18 Alstom Technology Ltd Sectionneur a pouvoir d'etablissement et de coupure ameliores
US10283253B2 (en) 2015-08-29 2019-05-07 Abb Schweiz Ag Transformer system and transformer termination support
CN106783417B (zh) 2015-11-23 2020-08-11 森萨塔科技公司 断路器
CN105759203A (zh) * 2016-04-01 2016-07-13 平高集团有限公司 一种电弧试验装置
US9991064B2 (en) 2016-08-10 2018-06-05 Abb Schweiz Ag SF6 insulated circuit breaker system with thermal capacitor
JP7070855B2 (ja) * 2018-06-04 2022-05-18 太平洋精工株式会社 電気回路遮断装置
CA3109875A1 (en) 2018-09-07 2020-03-12 General Electric Technology Gmbh An electric arc-blast nozzle made of a material comprising micro-capsules of liquid (cf3)2cfcn and a circuit breaker including such a nozzle
CN113725547B (zh) * 2021-09-07 2022-03-01 宿迁学院 一种电池用防火防爆装置

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE502180A (ko) * 1951-03-28 Merlin Gerin
DE1105947B (de) * 1960-03-23 1961-05-04 Siemens Ag Elektrischer Schalter, insbesondere Lasttrennschalter
US3192347A (en) * 1962-01-10 1965-06-29 Ite Circuit Breaker Ltd Circuit interrupter having track resistant coating thereon
US3305656A (en) * 1963-12-26 1967-02-21 Gen Electric Electrical insulation containing a molecular sieve having adsorbed perhalogenated fluid
US3415963A (en) * 1964-05-15 1968-12-10 Dow Chemical Co Ethyl cellulose composition for use in arc extinguishing apparatus
DE1540104C3 (de) * 1965-10-11 1974-10-03 Emil Ville D'avray Seineet-Oise Lange (Frankreich) Elektrode für eine Vorrichtung zum Löschen von elektrischen Lichtbogen, insbesondere für elektrische Schalter
CA969753A (en) * 1970-07-30 1975-06-24 Rostone Corporation Arc-interrupting composition and apparatus
US3761660A (en) * 1970-07-30 1973-09-25 Rostone Corp Arc interrupting composition and apparatus
CH556603A (de) * 1973-03-20 1974-11-29 Bbc Brown Boveri & Cie In einer schaltkammer eines elektrischen schalters, insbesondere eines sf6-druckgasschalters, angeordneter bauteil aus unter der einwirkung der lichtbogenwaerme gasabgebendem werkstoff.
CH557589A (de) * 1973-04-24 1974-12-31 Bbc Brown Boveri & Cie In einer schaltkammer eines elektrischen gasschalters, insbesondere eines sf6-druckgasschalter, angeordneter bauteil aus unter der einwirkung der lichtbogenwaerme gasabgebendem werkstoff.
CH596641A5 (ko) * 1976-04-02 1978-03-15 Sprecher & Schuh Ag
CA1096914A (en) * 1977-03-24 1981-03-03 Masami Kii Circuit interrupter comprising plural arc-quenching fluid pressure chambers
DE3347893C2 (de) * 1983-04-09 1986-10-09 Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim Zusammengesetztes Material mit lichtbogenlöschenden Eigenschaften
US4617542A (en) * 1983-10-17 1986-10-14 Imcs Corporation High voltage switching device
WO1985005217A1 (en) * 1984-05-01 1985-11-21 Mitsubishi Denki Kabushiki Kaisha Switch
US4898633A (en) * 1985-02-08 1990-02-06 Minnesota Mining And Manufacturing Company Article containing microencapsulated materials
JPH03216924A (ja) * 1990-01-23 1991-09-24 Toshiba Corp パッファ形ガス遮断器
JPH03222222A (ja) * 1990-01-26 1991-10-01 Toshiba Corp パッファ形ガス遮断器
JPH0574287A (ja) * 1991-09-10 1993-03-26 Toshiba Corp パツフア形ガス遮断器
JPH0574289A (ja) * 1991-09-13 1993-03-26 Toshiba Corp パツフア形ガス遮断器
JPH0594743A (ja) * 1991-09-30 1993-04-16 Toshiba Corp パツフア形ガス遮断器
US5326947A (en) * 1992-11-13 1994-07-05 Edds Thomas A Arc extinguishing device made of conductive plastic
DE9217024U1 (de) * 1992-12-15 1993-02-04 Fritz Driescher KG Spezialfabrik für Elektrizitätswerksbedarf GmbH & Co, 41844 Wegberg Lasttrennschalter für Mittelspannungsanlagen
JPH06251666A (ja) * 1993-02-22 1994-09-09 Toshiba Corp パッファ形ガス遮断器
EP0634756B1 (en) * 1993-07-16 1998-09-30 Kabushiki Kaisha Toshiba Metal oxide resistor, power resistor, and power circuit breaker

Also Published As

Publication number Publication date
EP0742569A2 (de) 1996-11-13
JPH08321235A (ja) 1996-12-03
CA2173190A1 (en) 1996-11-13
CN1071482C (zh) 2001-09-19
DE59609316D1 (de) 2002-07-18
DE19517540A1 (de) 1996-11-14
KR960042799A (ko) 1996-12-21
US5828026A (en) 1998-10-27
EP0742569A3 (de) 1998-03-25
CN1137161A (zh) 1996-12-04

Similar Documents

Publication Publication Date Title
EP0742569B1 (de) Löschgasabgebender Werkstoff und Druckgasschalter mit einem solchen Werkstoff
DE69510279T2 (de) Schalter und lichtbogenlöschendes Material für die Verwendung darin
DE69417167T2 (de) Lichtbogenlöschendes Füllmaterial für strombegrenzende Hochspannungssicherungen und Schalter
EP0951042B1 (de) Leistungsschalter
WO2017045811A1 (de) Mittel- oder hochspannungsschaltanlage mit einem gasdichten isolierraum
DE1490256A1 (de) Keramische Formmasse zur Herstellung von elektrisch isolierenden Formteilen mit einer lichtbogenausgesetzten Oberflaeche
DE2363896A1 (de) Strombegrenzungssicherung
DE19717044A1 (de) Vorrichtung zum Feuerlöschen in Räumen und aerosolbildende Zusammensetzung dafür
DE10164025B4 (de) Gekapselter, Netzfolgestrom begrenzender Überspannungsableiter auf Funkenstreckenbasis
DE3312852C2 (de) Zusammengesetztes Material, das unter Lichtbogeneinwirkung Löschgas abgibt
EP0197332A2 (de) Werkstoff für elektrische Kontakte mit Lichtbogen-Löschvermögen
EP1267376B1 (de) Selbstangetriebenes Leistungsschaltgerät
DE2717010C2 (ko)
DE19614104C2 (de) Druckgasschalter
DE19756779A1 (de) Mittel zur Kühlung von heißen Gasen
CH187801A (de) Elektrischer Stromunterbrecher.
DE3039987A1 (de) Schmelzsicherung mit loeschgas abgebendem festem soff als loeschmittel am schmelzleiter
DE2107337A1 (de) Lichtbogen loschende Substanz und Vorrichtung mit einer hchtbogenloschenden Substanz
DE681438C (de) Installationsschalter mit Lichtbogenbildung
DE3811368A1 (de) Blasduese fuer einen druckgasschalter
AT374045B (de) Hochspannungsschalter mit gas- oder dampffoermigem loeschmittel
DE1150133B (de) Elektrischer Stromkreisunterbrecher
DE102016218322B4 (de) Unterbrechereinheit für einen Leistungsschalter und ein Leistungsschalter mit einer derartigen Unterbrechereinheit
DE1105028B (de) Last- und Leistungsschalter mit Loeschkammer aus organischem Werkstoff
AT224741B (de) Lasttrennschalter oder Leistungsschalter für elektrische Hochspannung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19980808

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20010207

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020612

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020612

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 20020612

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020612

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020612

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020612

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59609316

Country of ref document: DE

Date of ref document: 20020718

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020912

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20020612

EN Fr: translation not filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: SIEMENS AG

Effective date: 20030307

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20030818

R26 Opposition filed (corrected)

Opponent name: SIEMENS AG

Effective date: 20030307