EP1276121A2 - Stromwandler - Google Patents
Stromwandler Download PDFInfo
- Publication number
- EP1276121A2 EP1276121A2 EP02015110A EP02015110A EP1276121A2 EP 1276121 A2 EP1276121 A2 EP 1276121A2 EP 02015110 A EP02015110 A EP 02015110A EP 02015110 A EP02015110 A EP 02015110A EP 1276121 A2 EP1276121 A2 EP 1276121A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- post insulator
- current transformer
- magnetic field
- field sensor
- ring
- 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- Withdrawn
Links
- 239000012212 insulator Substances 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase AC
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
Definitions
- the invention relates to a current transformer for measurement and protection purposes in Hochoder Medium-voltage networks with busbars guided in post insulators.
- Such a current transformer is used to detect what is conducted via the line network Electricity to measure electricity consumption or connected components to protect against energy peaks, i.e. it is designed as a measuring or protective transformer.
- a voltage transducer is usually also provided, with a Meter or relay is supplied with the measured current or voltage values. This measuring device or relay then detects from the measured values whether a impermissibly high power is carried over the network and prevents if necessary damage to connected electrical components due to an interruption the connection.
- the current transformers conventionally used for this are based on the transformer principle built up, i.e. such a current transformer has a primary and a secondary winding on, with a proportional to the conductor current in the secondary winding Electricity is generated.
- the resulting benefits are then from Relay added and used to assess the current network performance.
- a major disadvantage of these known transformer current transformers lies in that they have a considerable size and a corresponding weight. she are thus inconvenient to handle during assembly and especially increase confined space, valuable installation space.
- Such deliver Transformer current transformer relatively high output signal powers, which for relays newer generations are too high. The output powers of such transducers are therefore either reduced by changing the transformer arrangement accordingly adjusts, but this leads to an increase in the design, or they are before Relay so unused that only the desired input power at the relay is applied.
- the invention is therefore based on the object of a current transformer for measurement and To provide protective purposes on high or medium voltage networks, its size is significantly reduced compared to the prior art.
- a current transformer with the features of the claim 1 solved.
- This is particularly characterized in that a busbar in the area of the head of a post insulator at a distance from one that is not closed Ring of magnetically conductive material is surrounded, which is within the material of the Post insulator is arranged that in the gap between the open ends of the ring Magnetic field sensor is also arranged within the material of the post insulator, and that the leads of the magnetic field sensor through the body of the post insulator out to its foot and can be tapped there.
- a construction of a current transformer is shown for the first time, which can be integrated in a body in the form of a post insulator.
- a particularly compact design is also the other Advantage achieved that the connecting lines of the magnetic field sensor by the anyway existing length of the post insulator with sufficient insulation distance from the conductor rail be tapped, so that mutual interference is excluded here can be.
- the one integrated according to the invention in a support insulator body differs
- the design of current transformers is not, or only insignificantly, that of conventional ones Post insulators, so that this is also the usual support function for the busbar can take over.
- the current transformer according to the invention thus combines the Functionality of a conventional post insulator with the measuring function for the at the Conducted rail current.
- the magnetic field sensor according to the invention despite of the high current to be measured delivers a low-power signal, which as a rule directly by a downstream relay or a corresponding measuring device can be processed. Further adjustment steps of the signals to the downstream ones Measuring devices etc. are therefore not necessary.
- the current transformer according to the invention is also characterized by its high dielectric strength.
- partial discharges could destroy the Lead current transformer.
- the construction of the invention is a first Isolation gap between the busbar and the ring and a second isolation gap provided between the ring and the magnetic field sensor. With a corresponding geometric Dimensioning can thus be a direct breakdown between the conductor rail and magnetic field sensor can be reliably avoided.
- a current transformer similar in principle of measurement is already from the DE 44 46 258 A1 known.
- This current transformer has a soft magnetic, however electrically non-conductive core directly on a high-voltage side primary winding on.
- the core is annular and not closed in such a way that A magnetic field-dependent sensor is arranged in the gap between the ends is by means of which a signal analog to the current carried can be detected.
- the magnetic field sensor is preferably designed as a Hall sensor, since this is via a wide bandwidth a well usable signal for subsequent measuring devices supplies.
- a Hall sensor detects all current currents in the same way Way, since it has no iron core, so there is no saturation effect. moreover can therefore fall back on a proven measuring device.
- the post insulator - in a manner known per se - is screwed to the base with a support rail, the one intended for earthing Connection cable of the magnetic field sensor electrically with that provided for the screw connection Screw socket is connected in the post insulator.
- the ring is dimensioned so that in the measuring range of the magnetic field sensor No magnetic saturation occurs, the possible area of application and reliability of the current transformer according to the invention can be further improved.
- a current transformer 1 has a body in the form of a post insulator 2 having a head 21, a body 22 and one 23 foot.
- a conductor rail 3 is guided through the head 21 of the post insulator 2, which is cast in the electrically insulating material of the post insulator 2.
- Spaced around this busbar 3 is also within the material of the post insulator 2 a ring 4 made of magnetically conductive material.
- the one in Fig. 1 not visible ring 4 is indicated schematically with cross hatching. Since the Ring 4 is not in direct contact with the busbar 3, it can also be from a be electrically conductive material.
- the distance between the busbar 3 and the ring 4 are determined from the mains voltage conducted over the busbar 3 and the dielectric properties of the material of the post insulator 2, which is usually epoxy resin.
- the ring 4 is not closed in the manner shown in FIG. 1, so that a There is a gap between the open ends of the ring 4. There is a in this gap Magnetic field sensor 5 arranged, which in this embodiment is designed as a Hall sensor is. Connection lines 6 lead away from the magnetic field sensor 5, wherein in FIG. 2 a ground line 61 and two signal lines 62 and 63 are shown. The connecting lines 6 are cast in the post insulator 2 and thus fixed therein, and from the area of the head in which the ring 4 and the magnetic field-dependent sensor 5 are arranged are passed through the body 22 to the foot 23 of the post insulator 2. It is therefore not necessary to pay attention to a specific routing of the connecting lines 6 become.
- connection base 24 is formed with two connection sockets, which are connected to the two signal lines 62 and 63.
- the connector base 24 points away from the main axis of the post insulator 2 and is offset by 90 ° arranged to the course of the busbar 3.
- the ground line 61 is also with a screw bushing 25 which is concentric with the central axis of the post insulator 2 is embedded at the bottom of the foot 23.
- the screw bushing 25 enables a direct attachment of the support insulator 2 to a carrier rail, not shown here or the like and simultaneously establishes a ground connection.
- the entire measuring sensor system and the derivatives are in accordance with the dielectric Dimensioned or arranged requirements and in the synthetic resin of the Post insulator 2 cast.
- the current transformer 1 is thus an integral body, which is almost identical in shape to a conventional post insulator without measuring function is trained.
- the busbar in the head 21 of the post insulator 3 the ring 4, the magnetic field sensor 5 and its connecting lines 6 are arranged, i.e. there are no further metallic elements in the head 21 which the Function of the current transformer 1 could impair.
- the current transformer 1 is connected to a line network involved, d. H. current-carrying rails are connected to the current rail 3 e.g. connected by screw connection.
- the current led over the busbar 3 causes a magnetic field proportional to the current flow, which is bundled by the ring 4 becomes.
- the ring 4 directs this magnetic field to the magnetic field sensor located in the gap 5, which is proportional to the magnetic field and thus also to the current Output signal delivers. This becomes via the connecting lines 6 to the connection base 24 removed and can be tapped there and fed to a relay or the like become.
- the conductor rail 3 with a rectangular cross section is in this embodiment provided in the area of the head 21 with rounded edges so that corona or corona discharges can be avoided.
- the partial discharge onset voltage becomes thereby significantly reduced.
- the rounded Edges of the busbar 3 produced by a post-processing step. It is also possible to use a busbar with a round cross-section, which, however, usually has a lower tensile strength than the one according to the invention Flat metal made busbar 3 has.
- the busbar Depressions or through openings can be formed, which flow in or through the casting resin during the pressing process in the course of the manufacture of the post insulator 2 enable.
- an additional after hardening of the casting resin Fixation of the busbar achieved. So there is a one-sided load as well as any Current transformer 1 can be installed.
- the Countered danger that the busbar pulled out of the head of the post insulator could be.
- This type of position fixation or anchoring is also a always given the same position of the busbar relative to the magnetic field sensor, what leads to improved measurement accuracy.
- the invention thus creates a current transformer 1 for measurement and protection purposes in High or medium voltage networks with busbars guided in post insulators, at which the busbar 3 in the region of the head 21 of the post insulator 2 at a distance of a ring 4 which is not closed is made of magnetically conductive material, which is arranged within the material of the post insulator 2, wherein in the gap between the open ends of the ring 4 of the magnetic field sensor 5 also within the material the support insulator 2 is arranged, and wherein the connecting lines 6 of the Magnetic field sensor 5 through the body 22 of the post insulator 2 to its base 23 managed and can be tapped there.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
Description
- Fig. 1
- eine schematische Vorderansicht eines erfindungsgemäßen Stromwandlers; und
- Fig. 2
- eine Seitenansicht des erfindungsgemäßen Stromwandlers.
Claims (6)
- Stromwandler (1) für Meß- und Schutzzwecke in Hoch- oder Mittelspannungsnetzen mit in Stützisolatoren geführten Stromschienen,
dadurch gekennzeichnet, daß eine Stromschiene (3) im Bereich des Kopfes (21) eines Stützisolators (2) mit Abstand von einem nicht geschlossenem Ring (4) aus magnetisch leitfähigem Material umgeben ist, der innerhalb des Materials des Stützisolators (2) angeordnet ist,
daß im Spalt zwischen den offenen Enden des Rings (4) ein Magnetfeldsensor (5) ebenfalls innerhalb des Materials des Stützisolators (2) angeordnet ist, und
daß Anschlußleitungen (6) des Magnetfeldsensors (5) durch den Körper (22) des Stützisolators (2) bis zu dessen Fuß (23) geführt und dort abgreifbar sind. - Stromwandler nach Anspruch 1, dadurch gekennzeichnet, daß der Magnetfeldsensor (5) ein Hall-Sensor ist.
- Stromwandler nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Stützisolator (2) am Fuß (23) mit einer Trägerschiene verschraubt ist, wobei die für die Erdung vorgesehene Anschlußleitung (61) des Magnetfeldsensors (5) elektrisch mit der für die Verschraubung vorgesehenen Schraubbuchse (25) im Stützisolator verbunden ist.
- Stromwandler nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Anschlußleitungen (62, 63) für die Signale des Magnetfeldsensors (5) seitlich am Fuß (23) des Stützisolators (2) in einem Winkel von 90 Grad zum Verlauf der Stromschiene (3) abgreifbar sind.
- Stromwandler nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Ring (4) so dimensioniert ist, daß im Meßbereich des Magnetfeldsensors (5) keine magnetische Sättigung auftritt.
- Stromwandler nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Abstand des Rings (4) von der Stromschiene (3) in Abhängigkeit von der Netzleistung und den dielektrischen Eigenschaften des Materials des Stützisolators (2) gewählt ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10134014A DE10134014A1 (de) | 2001-07-12 | 2001-07-12 | Stromwandler |
| DE10134014 | 2001-07-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1276121A2 true EP1276121A2 (de) | 2003-01-15 |
| EP1276121A3 EP1276121A3 (de) | 2003-05-28 |
Family
ID=7691618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02015110A Withdrawn EP1276121A3 (de) | 2001-07-12 | 2002-07-05 | Stromwandler |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20030011362A1 (de) |
| EP (1) | EP1276121A3 (de) |
| DE (1) | DE10134014A1 (de) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2226816A1 (de) * | 2009-01-27 | 2010-09-08 | Andreas Siemes | Stromwandler und dessen Herstellverfahren für die Messung und den Schutz in Hoch- und Mittelspannungsnetzen |
| DE102009043596A1 (de) * | 2009-09-25 | 2011-03-31 | Siemens Aktiengesellschaft | Messwandler mit einem elektrischen Wandler |
| CN104166074A (zh) * | 2014-08-07 | 2014-11-26 | 上海萌烨电力科技有限公司 | 输电线路电流数据采集装置 |
| CN107154307A (zh) * | 2017-07-06 | 2017-09-12 | 正泰电气股份有限公司 | 一种电流互感器用保护罩 |
| WO2021058089A1 (en) * | 2019-09-24 | 2021-04-01 | Siemens Energy Global GmbH & Co. KG | Signal transmission in instrument transformers |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080061915A1 (en) * | 2006-09-11 | 2008-03-13 | Rodney Godbey | Dry-type transformer with shielded core/coil assembly and method of manufacturing the same |
| DE102007051579A1 (de) | 2007-10-29 | 2009-05-20 | Andreas Siemes | Stromwandler für die Messung und den Schutz in Hoch- oder Mittelspannungsnetzen |
| US7876086B2 (en) * | 2008-02-28 | 2011-01-25 | International Components Corporation | Current measuring device for measuring the electrical current flowing in an electrical conductor electrically isolated from the current measuring device |
| KR100875518B1 (ko) | 2008-05-14 | 2008-12-22 | 경동중전기(주) | 개로형 변류기가 내장된 지지애자 |
| US20100321003A1 (en) * | 2009-06-23 | 2010-12-23 | Franklin Christiaan Geiger | Meter-mounted extender |
| EP2768396A2 (de) | 2011-10-17 | 2014-08-27 | Butterfly Network Inc. | Durchlässige bildgebung sowie zugehörige vorrichtung und verfahren |
| WO2013170053A1 (en) | 2012-05-09 | 2013-11-14 | The Regents Of The University Of Michigan | Linear magnetic drive transducer for ultrasound imaging |
| US9667889B2 (en) | 2013-04-03 | 2017-05-30 | Butterfly Network, Inc. | Portable electronic devices with integrated imaging capabilities |
| CN116313457A (zh) * | 2023-04-28 | 2023-06-23 | 恒源利通电气大厂有限公司 | 电力电流互感器 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB833790A (en) * | 1956-06-04 | 1960-04-27 | Ite Circuit Breaker Ltd | Current transformer |
| US3199026A (en) * | 1961-05-01 | 1965-08-03 | Gen Precision Inc | D.-c. clamp-on meter including a hall plate flux detector |
| US3793166A (en) * | 1970-01-07 | 1974-02-19 | American Smelting Refining | Electrical current measurement and rapidly locating and positively identifying cathodes having abnormal electrical conditions associated therewith in an electrolytic copper refining process tankhouse |
| GB1464047A (en) * | 1973-12-07 | 1977-02-09 | Meidensha Electric Mfg Co Ltd | Instrument transformer |
| GB2099159B (en) * | 1981-05-22 | 1985-04-11 | Heme International Ltd | Measuring probe |
| CH667557A5 (de) * | 1985-03-14 | 1988-10-14 | Sprecher Energie Ag | Hochspannungsschaltanlage. |
| GB8603781D0 (en) * | 1986-02-15 | 1986-03-19 | Pilkington Brothers Plc | Current probe |
| US4935693A (en) * | 1987-10-14 | 1990-06-19 | Square D Company | Line secured current and voltage sensing apparatus |
| CH674089A5 (de) * | 1987-10-16 | 1990-04-30 | Lem Liaisons Electron Mec | |
| JPH03206971A (ja) * | 1990-01-09 | 1991-09-10 | Mitsubishi Electric Corp | 光変成器 |
| JPH11265649A (ja) * | 1998-03-18 | 1999-09-28 | Mitsubishi Electric Corp | 電流検出器及び電流検出器を備えた電力開閉器 |
-
2001
- 2001-07-12 DE DE10134014A patent/DE10134014A1/de not_active Ceased
-
2002
- 2002-07-05 EP EP02015110A patent/EP1276121A3/de not_active Withdrawn
- 2002-07-11 US US10/193,491 patent/US20030011362A1/en not_active Abandoned
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2226816A1 (de) * | 2009-01-27 | 2010-09-08 | Andreas Siemes | Stromwandler und dessen Herstellverfahren für die Messung und den Schutz in Hoch- und Mittelspannungsnetzen |
| DE102009043596A1 (de) * | 2009-09-25 | 2011-03-31 | Siemens Aktiengesellschaft | Messwandler mit einem elektrischen Wandler |
| CN104166074A (zh) * | 2014-08-07 | 2014-11-26 | 上海萌烨电力科技有限公司 | 输电线路电流数据采集装置 |
| CN104166074B (zh) * | 2014-08-07 | 2017-04-12 | 上海萌烨电力科技有限公司 | 输电线路电流数据采集装置 |
| CN107154307A (zh) * | 2017-07-06 | 2017-09-12 | 正泰电气股份有限公司 | 一种电流互感器用保护罩 |
| CN107154307B (zh) * | 2017-07-06 | 2019-06-11 | 正泰电气股份有限公司 | 一种电流互感器用保护罩 |
| WO2021058089A1 (en) * | 2019-09-24 | 2021-04-01 | Siemens Energy Global GmbH & Co. KG | Signal transmission in instrument transformers |
Also Published As
| Publication number | Publication date |
|---|---|
| US20030011362A1 (en) | 2003-01-16 |
| EP1276121A3 (de) | 2003-05-28 |
| DE10134014A1 (de) | 2003-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2363933C3 (de) | Kombinierte Strom- und Spannungsmeßeinrichtung | |
| DE69807881T2 (de) | Stromsensor | |
| EP1276121A2 (de) | Stromwandler | |
| DE19712900A1 (de) | Sensoranordnung zur Strom- und Spannungsmessung | |
| DE102016225879A1 (de) | Allstromsensitiver Summenstromwandler, elektromechanisches Schutzschaltgerät und Herstellverfahren | |
| DE19755887A1 (de) | Spannungswandlereinrichtung für Mittel- bzw. Hochspannungs-Leistungsschalteranlagen | |
| EP1249910A2 (de) | Hochspannungs-Leistungsschalter für eine druckgasisolierte Schaltanlage | |
| EP3987298B1 (de) | Messen einer elektrischen spannung an einem metallgekapselten schaltgerät | |
| EP0856925B1 (de) | Spannungswandler | |
| EP3001204A1 (de) | Durchführung wenigstens eines elektrischen Leiters durch eine Öffnung | |
| DE19856775A1 (de) | Hochspannungsleistungsschalter mit einer Unterbrechereinheit | |
| DE4445082C1 (de) | Hochspannungs-Steckkontakt | |
| EP0494151B1 (de) | Erdungsschalter für eine druckgasisolierte, metallgekapselte hochspannungsschaltanlage | |
| EP2047484A1 (de) | Anschlussstuck zum anbringen an einem sicherungsgehause | |
| DE19958782B4 (de) | Durchführungsstützer und -stromwandler für metallgekapselte, luftisolierte Mittelspannungs-Schaltanlagen | |
| EP3373313A1 (de) | Berstsicherer stromwandler, insbesondere für triebwagen | |
| DE9217807U1 (de) | Ringkernstromwandler | |
| EP3671792B1 (de) | Anordnung einer stromverteilungskomponente und eines elektrischen abgriffs mit einer überstromschutzeinrichtung | |
| DE202021106389U1 (de) | Elektrisches Gerät und Anordnung mit verbesserter Isolation einer herausgeführten Stromschiene zum Anschluss eines Kabels | |
| AT521644B1 (de) | Vorrichtung zur Messung von Stromstärke und Spannung | |
| DE10258115A1 (de) | Breitbandiges Messmodul zur Strommessung an Einrichtungen der Leistungselektronik | |
| DE3521518A1 (de) | Hochspannungsstromwandler | |
| DE10260402B4 (de) | Einrichtung zur Herstellung einer unter Kontaktkraft gehaltenen stromleitenden Überbrückung und elektrisches Erdungsgerät mit einer derartigen Einrichtung | |
| DE102013222319A1 (de) | Anschlussstück für einen Schalterpol eines Schaltgerätes | |
| EP3400603B1 (de) | Wicklungsanordnung mit steckdurchführung |
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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: 7G 01R 15/20 B Ipc: 7H 01F 38/30 A |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20030829 |
|
| AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
| 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: 20050201 |