EP1196975A1 - Dispositif de mise en court-circuit - Google Patents

Dispositif de mise en court-circuit

Info

Publication number
EP1196975A1
EP1196975A1 EP00952937A EP00952937A EP1196975A1 EP 1196975 A1 EP1196975 A1 EP 1196975A1 EP 00952937 A EP00952937 A EP 00952937A EP 00952937 A EP00952937 A EP 00952937A EP 1196975 A1 EP1196975 A1 EP 1196975A1
Authority
EP
European Patent Office
Prior art keywords
switching device
electrical line
electronic switching
short
thyristor
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Withdrawn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
EP00952937A
Other languages
German (de)
English (en)
Inventor
Egid Schneider
Markus Zachmeier
Ulrich Schmidt
Martin HÜNNER
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 EP1196975A1 publication Critical patent/EP1196975A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M5/00—Arrangements along running rails or at joints thereof for current conduction or insulation, e.g. safety devices for reducing earth currents
    • B60M5/02—Means for reducing potential difference between rail and adjacent ground
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/541—Contacts shunted by semiconductor devices
    • H01H9/542—Contacts shunted by static switch means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/14—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to occurrence of voltage on parts normally at earth potential
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles

Definitions

  • the invention relates to a device for short-circuiting a first electrical line with a second electrical line, the first electrical line and the second electrical line being able to be short-circuited by a mechanical switching device.
  • Such shorting devices are e.g. B. from the Siemens product information "Short-circuiter SITRAS ® SCD9 ⁇ voltage limiting device for DC train systems", order no. A52811-C2720-D11-A5-00B1.
  • the known devices for short-circuiting are used in traction power supply systems.
  • the first electrical line is formed by the return line (in the case of direct current railway systems, this is the travel rail) and the second electrical line is formed by the ground line.
  • EP-PS 0 806 071 discloses a device for short-circuiting, in which a first electrical line can be short-circuited with a second electrical line by means of an elaborately controlled electromechanical short-circuit bridge.
  • CA-PS 1,307,822 describes a device for short-circuiting, in which a first electrical line can be short-circuited by electronic means with a second electrical line. This device also requires a comparatively complex control.
  • the object of the present invention is to create a simply constructed device for short-circuiting, which has short response times.
  • the device according to the invention for short-circuiting a first electrical line with a second electrical line has a mechanical switching device by means of which the first electrical line and the second electrical line can be short-circuited.
  • at least one first electronic switching device is arranged parallel to the mechanical switching device and at least one second electronic switching device is arranged antiparallel to the first electronic switching device, wherein a voltage difference between the first electrical line and the second electrical line can be bridged by at least one of the electronic switching devices.
  • the first electronic switching device switches when the potential of the second electrical line is greater than the potential of the first electrical line by a predeterminable difference value and the second electronic switching device switches when the potential of the first electrical line Line is greater than the potential of the second electrical line by a predeterminable differential value.
  • the device according to claim 1 thus has a mechanical switching unit and an electronic switching unit, which are each independent in their function.
  • the mechanical switching unit consists of at least one mechanical switching device and the electronic switching unit is made up of at least one first electronic switching device and at least one second electronic switching device
  • Both switching units are each controlled by at least one independent control and thus independently short-circuit the first electrical line and the second electrical line.
  • the control of the electronic switching unit d. H. the control of the first electronic switching device and the second electronic switching device does not require any auxiliary voltage. If one switching unit fails or the auxiliary voltage fails, the function of short-circuiting by the other switching unit is still guaranteed, at least at high voltages.
  • the redundancy of the device according to claim 1 ensures optimal personal protection.
  • the short-circuiting device defined in claim 1 has a significantly shorter response time.
  • the response behavior of the device according to the invention is also independent of the sign of the voltage difference occurring between the first electrical line and the second electrical line. This improves the protection of people against electric shock and the protection of electronic components that are connected between the rails and the earthing system in traction power supply systems, since overvoltages between the first electrical line (return line, which is formed by the rail) and the second electrical line (earthing line) no longer occur or only for a short time. Damage to the electronic assemblies between the rails and the earthing system can thus be avoided with a high degree of probability.
  • the mechanical switching device is additionally triggered by at least one of the electronic switching devices.
  • the bridging electronic switching device is advantageously loaded for only a very short time by the high short-circuit current, since after the mechanical switching device has responded, the short-circuit current flows exclusively via the mechanical switching device which can withstand higher currents.
  • the power semiconductors in the electronic switching devices can be designed, for example, as GTO thyristors, as thyristors or as transistors.
  • the electronic switching devices are designed as thyristor circuits.
  • the thyristor circuit comprises at least one thyristor, the cathode of which is connected to the first electrical line and the anode of which is connected to the second electrical line.
  • a drive circuit is connected to the gate of the thyristor, which comprises a series circuit comprising a breakover diode, a series resistor and a protective diode.
  • the thyristor circuit comprises at least one thyristor, the cathode of which is connected to the second electrical line and the anode of which is connected to the first electrical line.
  • a drive circuit which comprises a series circuit comprising a breakover diode, a series resistor and a protective diode.
  • the thyristor is additionally connected upstream of a current detection device which controls the mechanical switch. After the mechanical switching device is closed, the thyristor automatically goes out due to its parallel arrangement to the mechanical switching device. In contrast, a GTO thyristor can be additionally force-cleared.
  • the device according to claim 6 offers a further improved protection against overvoltage damage for the electronic assemblies.
  • 1 denotes a first electrical line, which represents the return line in a traction power supply.
  • the return line is formed by at least one travel rail.
  • 2 designates a second electrical line, which forms an earthing line (building earth) in the exemplary embodiment shown.
  • a mechanical switching device SM is arranged between the return line 1 and the ground line 2, by means of which the return line 1 and the ground line 2 can be short-circuited.
  • the mechanical switching device SM comprises a mechanical switch S and a voltage detection device FU, which triggers the mechanical switch S when an inadmissible voltage difference between the two electrical conductors 1 and 2 occurs (possibly with a time delay).
  • At least one first electronic switching device is parallel to the mechanical switching device SM SEI and at least one second electronic switching device SE2 arranged antiparallel to the first electronic switching device SEI.
  • the exemplary embodiment shown has exactly one first electronic switching device SEI and exactly one second electronic switching device SE2.
  • the voltage difference between the return line 1 and the ground line 2 can be bridged by at least one of the electronic switching devices SEI and SE2.
  • the first electronic switching device SEI switches when the potential U2 of the second electrical line 2 is greater than the potential U1 of the first electrical line 1 by a predeterminable difference value
  • the second electronic switching device SE switches when the potential U1 of the first electrical line 1 by one predeterminable differential value is greater than the potential U2 of the second electrical line 2.
  • the first electronic switching device SEI and / or the second electronic switching device SE2 after the first electrical line 1 and the second electrical line 2 have been bridged additionally the mechanical switching device SM can be triggered, which then switches off.
  • the electronic switching devices SEI and SE2 are designed as thyristor circuits.
  • the thyristor circuit comprises a thyristor T1, the cathode of which is connected to the return line 1. Furthermore, the thyristor Tl is connected with its anode to the ground line 2. A drive circuit is connected to the gate of the thyristor T1.
  • the control circuit in the embodiment shown in the drawing consists of a protective diode Dl, which is followed by an ignition resistor Rl.
  • a breakover diode BOD1 is connected downstream of the ignition resistor R1.
  • the thyristor circuit comprises a thyristor T2, the cathode of which is connected to the ground line 2. Furthermore, the thyristor T2 is connected with its anode to the return line 1.
  • a drive circuit is connected to the gate of thyristor T2.
  • the control circuit consists of a protective diode D2, which is followed by an ignition resistor R2.
  • a breakover diode BOD2 is connected downstream of the ignition resistor R2.
  • the protective diode D1 or D2 in the control circuit for the first electronic switching device SEI or for the second electronic switching device SE2 can also be omitted.
  • a voltage-sensing component instead of the breakover diode B0D1 or BOD2 z.
  • B. a Zener diode can also be used.
  • a current detection device FI is connected in series with the electronic switching devices SEI and SE2 arranged antiparallel to one another.
  • the mechanical switching device SM is controlled by the current detection device FI.
  • the thyristor Tl switches when the earth line 2 (building earth) assumes a positive potential with respect to the return line 1 (railway earth, rail). This is the case, for example, when a positive lightning strikes a lightning arrester that is at the potential of the building earth, or when a contact wire that has a positive voltage with respect to the running rail falls on the platform.
  • the thyristor T2 switches when the return line 1 (railway earth, rail) assumes a positive potential with respect to the earth line 2 (building earth). This is e.g. B. the case when a positive lightning strikes the rail or when a contact wire, which has a positive voltage with respect to the travel rail, falls onto the travel rail.
  • the thyristors Tl and T2 should only be used in the event of voltage flashovers, i.e. H. In the event of a fault in the traction power supply system, ignite and connect the return line 1 and the earth line 2 to one another.
  • the technical requirements for the thyristors T1 and T2 thus result from the possible short-circuit or line follow currents.
  • the level of the line follow currents is determined both by the distance of the short circuit to the substation and by the contact resistance between the earthing line 2 and the return line 1. For applications in traction power supply with, for example, a contact wire DC voltage of 1500 volts, uninfluenced short-circuit currents of up to 75 kA can occur. Thyristors with the highest possible current carrying capacity should therefore be selected.
  • the thyristors Tl and T2 are controlled via the control circuit, which is formed in each case by the protective diode D1 or D2, the ignition resistor Rl or R2 and the breakover diode B0D1 or B0D2.
  • the control circuit has a simple structure and, unlike other electronic controls, does not require an auxiliary voltage supply.
  • the ignition voltage selected for driving the thyristors T1 and T2 is preferably 200-800 volts. This is currently the lowest ignition voltage available as standard for breakover diodes. This ignition voltage is safely above the operational response voltage of the mechanical switching device SM. On the other hand, this ignition voltage is sufficiently low for the desired improvement of the system protection.
  • the ignition series resistors R1 and R2 are to be dimensioned such that on the one hand the breakover diodes BOD1 and BOD2 are not destroyed and that on the other hand the current pulses for driving the thyristors T1 and T2 are sufficiently large.
  • the protection diodes Dl and D2 protect the breakover diodes BOD1 and B0D2 from reverse overvoltages.
  • the mechanical switching device SM of the device for short-circuiting is controlled via a potential-free contact.
  • the potential-free contact of the current detection device FI is closed at a minimum current of 15 amperes, for example.
  • Thyristor Tl takes over the load current after approx. 1 to 2 microseconds.
  • the mechanical switching device SM switches on after approximately 65 milliseconds and takes over the load current.
  • the thyristor Tl goes out.
  • the complete commutation of the load current from the thyristor T1 to the mechanical switching device SM takes about 0.5 milliseconds.
  • the thyristor T2 fires first.
  • the thyristor T2 takes over the load current after approx. 1 to 2 microseconds.
  • the mechanical switching device SM switches on and takes over the load current.
  • Thyristor T2 goes out.
  • the complete commutation of the load current from the thyristor T2 to the mechanical switching device SM takes about 0.5 milliseconds.
  • the thyristor circuit shown in the drawing with ignition via a breakover diode acts as a simple and functionally reliable short-circuit device within approximately 2 microseconds, the current detection device FI actuating the mechanical switching device SM (driver circuit).
  • the thyristor Tl or T2 extinguishes automatically after the mechanical switching device SM has responded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Inverter Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

L'invention concerne un dispositif de mise en court-circuit destiné à mettre une première ligne électrique (1) en court-circuit avec une deuxième ligne électrique (2) par l'intermédiaire d'au moins un dispositif de commutation mécanique (SM). A cet effet, au moins un premier dispositif de commutation électronique (SE1) est disposé parallèlement au dispositif de commutation mécanique (SM), et au moins un deuxième dispositif de commutation électronique (SE2), permettant de ponter une différence de potentiel apparaissant entre la première ligne électrique (1) et la deuxième ligne électrique (2), est disposé antiparallèlement par rapport au premier dispositif de commutation électronique (SE1). Un tel dispositif est de montage simple et présente des temps de réaction courts.
EP00952937A 1999-07-16 2000-07-13 Dispositif de mise en court-circuit Withdrawn EP1196975A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19933803 1999-07-16
DE19933803 1999-07-16
PCT/DE2000/002297 WO2001006610A1 (fr) 1999-07-16 2000-07-13 Dispositif de mise en court-circuit

Publications (1)

Publication Number Publication Date
EP1196975A1 true EP1196975A1 (fr) 2002-04-17

Family

ID=7915293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00952937A Withdrawn EP1196975A1 (fr) 1999-07-16 2000-07-13 Dispositif de mise en court-circuit

Country Status (4)

Country Link
US (1) US6707171B1 (fr)
EP (1) EP1196975A1 (fr)
NO (1) NO20020244L (fr)
WO (1) WO2001006610A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003065534A1 (fr) * 2002-01-30 2003-08-07 Siemens Aktiengesellschaft Dispositif pour court-circuiter deux lignes electriques pour reduire une difference de potentiel
US7385791B2 (en) * 2005-07-14 2008-06-10 Wetlow Electric Manufacturing Group Apparatus and method for relay contact arc suppression
US7944669B2 (en) * 2007-06-29 2011-05-17 Zareba Systems, Inc. Electric fence energizer lightning protection
TWM349544U (en) * 2008-07-11 2009-01-21 Goodwell Electric Corp Electronic switch structure capable of eliminating electric arc
DE102008049630A1 (de) * 2008-09-30 2010-04-08 Repower Systems Ag Überspannungsschutzgerät für Windenergieanlagen
DE102008049706A1 (de) * 2008-09-30 2010-04-01 Siemens Aktiengesellschaft Vorrichtung und Verfahren zur Begrenzung des Schienenpotenzials bei einer Gleichstrombahn
DE102008049705A1 (de) * 2008-09-30 2010-04-01 Siemens Aktiengesellschaft Vorrichtung und Verfahren zur Begrenzung des Schienenpotenzials bei einer Gleichstrombahn
DE102009043229A1 (de) 2009-09-28 2011-03-31 Siemens Aktiengesellschaft Vorrichtung zum Kurzschließen
US8619395B2 (en) 2010-03-12 2013-12-31 Arc Suppression Technologies, Llc Two terminal arc suppressor
DE202010016830U1 (de) * 2010-12-20 2012-03-22 Voltwerk Electronics Gmbh Sicherheitsschaltung
CN202111614U (zh) * 2011-06-15 2012-01-11 西门子公司 一种用于晶闸管的触发电路及快速旁路装置
US20140226374A1 (en) * 2011-07-29 2014-08-14 Abb Technology Ag Ctl cell protection
FR3004019A1 (fr) * 2013-03-29 2014-10-03 St Microelectronics Tours Sas Composant de protection contre des surtensions
DE102013211898A1 (de) * 2013-06-24 2014-12-24 Wobben Properties Gmbh Windenergieanlage
US9178349B2 (en) 2013-09-11 2015-11-03 General Electric Company Method and system for architecture, control, and protection systems of modular stacked direct current subsea power system
JP6420078B2 (ja) * 2014-07-01 2018-11-07 東海旅客鉄道株式会社 鉄道車両
US10243356B2 (en) * 2015-03-19 2019-03-26 Stmicroelectronics (Tours) Sas Overvoltage protection device
DE102015221342B4 (de) * 2015-10-30 2017-09-07 Ifm Electronic Gmbh Induktiver Näherungsschalter
DE102016215769B4 (de) * 2016-08-23 2020-06-25 Witt GmbH Industrieelektronik Abbauen einer Potentialdifferenz zwischen Masseanschlüssen / Erdungssystemen eines Bahnnetzes

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982137A (en) * 1975-03-27 1976-09-21 Power Management Corporation Arc suppressor circuit
FR2504322A1 (fr) * 1981-04-15 1982-10-22 Ferraz & Cie Lucien Systeme de securite a l'encontre de la mise sous tension de structures metalliques
US4500934A (en) * 1982-06-21 1985-02-19 General Electric Company Hybrid switching device employing liquid metal contact
SE462244B (sv) * 1988-09-21 1990-05-21 Asea Brown Boveri Elektrodlinjeskydd foer detektering av jordfel
JPH04355628A (ja) * 1991-05-31 1992-12-09 Toshiba Corp 直流送電線路短絡検出装置
DE59504521D1 (de) 1995-01-24 1999-01-21 Elpro Bahnstromanlagen Gmbh Überspannungsschutzgerät
EP0775332B1 (fr) * 1995-03-11 2000-05-10 Leuze electronic GmbH + Co. Ensemble commutateur de securite
US5699218A (en) * 1996-01-02 1997-12-16 Kadah; Andrew S. Solid state/electromechanical hybrid relay
US5790354A (en) * 1997-03-26 1998-08-04 Watlow Electric Manufacturing Company Hybrid power switching device
DE19837628A1 (de) * 1998-08-19 2000-03-02 Siemens Ag Einrichtung zum Kurzschließen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0106610A1 *

Also Published As

Publication number Publication date
WO2001006610A1 (fr) 2001-01-25
US6707171B1 (en) 2004-03-16
NO20020244D0 (no) 2002-01-16
NO20020244L (no) 2002-01-16

Similar Documents

Publication Publication Date Title
WO2001006610A1 (fr) Dispositif de mise en court-circuit
DE102018203489B4 (de) Wechselstromladevorrichtung für ein Kraftfahrzeug und Verfahren zum Betreiben einer Wechselstromladevorrichtung für ein Kraftfahrzeug
DE102016216331B3 (de) Trennvorrichtung zur Stromunterbrechung, Schutzschalter mit einem Sensor und einer Trennvorrichtung sowie Verfahren zum Betrieb einer Trennvorrichtung
EP0890220B1 (fr) Appareil de commutation electronique de derivation
DE102012018321A1 (de) Verfahren zum Abschalten eines Batteriesystems unter Last sowie Batteriesystem
DE102016120070A1 (de) Niederspannungs-Schutzschaltgerät
EP3552289B1 (fr) Disjoncteur basse tension
DE102020006947A1 (de) Vorrichtung und Verfahren zum Deaktivieren eines Hochvoltbordnetzes eines elektrisch antreibbaren Fahrzeugs
EP3915127A1 (fr) Disjoncteur à courant continu
EP1105897B1 (fr) Dispositif de court-circuitage
DE3317964A1 (de) Hybridschuetz, damit ausruestbarer elektromagnetischer linearantrieb und verfahren zum schalten des hybridschuetzes
DE102018101309A1 (de) Gleichstrom-Schutzschaltgerät
DE4319366A1 (de) Gleichstromschnellschalter in Hybridtechnik
DE4402023A1 (de) Überspannungsschutzgerät
DE102015203843A1 (de) Anordnung und Verfahren für eine Gleichspannungs-Bahnstromversorgung
EP0613427B1 (fr) Circuits pour sous-stations de redressement
DE19629461C2 (de) Verteilungs- und Schaltungssystem für Mittelspannungsgleichstrom-Netze
AT409248B (de) Schutzvorrichtung
EP1353430B1 (fr) Disposition de circuit
DE102023102239A1 (de) Gleichspannungsschaltgerät, insbesondere zum Unterbrechen eines Stromflusses, und Gleichspannungssystem
EP3417468B1 (fr) Circuit de commutation, convertisseur comportant une installation de commutation ainsi qu'un procédé de protection du circuit convertisseur
DE102023102240A1 (de) Gleichspannungsschaltgerät, insbesondere zum Unterbrechen eines Stromflusses, und Gleichspannungssystem
DE102022207473A1 (de) Transientenschutz
DE4126819C2 (de) Schaltungsanordnung für ein Gleichrichter-Unterwerk
DE105976C (fr)

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

17P Request for examination filed

Effective date: 20011217

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

RBV Designated contracting states (corrected)

Designated state(s): AT DE DK IT NL

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100202