WO2000055588A1 - Elektrische hochspannungsmaschine, insbesondere turbogenerator, und verfahren zur messung einer temperatur in einer elektrischen hochspannungsmaschine - Google Patents
Elektrische hochspannungsmaschine, insbesondere turbogenerator, und verfahren zur messung einer temperatur in einer elektrischen hochspannungsmaschine Download PDFInfo
- Publication number
- WO2000055588A1 WO2000055588A1 PCT/EP2000/001951 EP0001951W WO0055588A1 WO 2000055588 A1 WO2000055588 A1 WO 2000055588A1 EP 0001951 W EP0001951 W EP 0001951W WO 0055588 A1 WO0055588 A1 WO 0055588A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- temperature
- voltage machine
- machine according
- electrical
- electrical high
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/04—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies
- G01K13/08—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in rotary movement
Definitions
- the invention relates to an electrical high-voltage machine, in particular a turbogenerator, with a temperature measuring device for measuring a temperature in the electrical high-voltage machine.
- the invention also relates to a method for measuring a temperature in an electrical high-voltage machine, in particular in a turbogenerator.
- thermocouples or resistance thermometers between the upper and lower conductor rod usually results in much lower measured values.
- the temperature measuring elements between the upper and the lower conductor bar are already far from the conductor bars within a temperature field arising between these conductor bars and laminated core, so that display differences of 20 ° C. and more are possible. When operating electrical machines, these display differences must be taken into account in order to correctly evaluate the temperature display of slot thermometers. For the manufacturers The task is to avoid tightly localized additional losses that can lead to hot spots that are difficult to detect.
- the object of the invention is to provide an electrical high-voltage machine, in particular a turbogenerator, in which temperature measurement is reliably possible in a simple and cost-effective manner even in areas that are difficult to access.
- Another object of the invention is to provide a corresponding method.
- an electrical high-voltage machine in particular a turbogenerator with a housing and with a temperature measuring device for measuring a temperature inside the housing, which temperature measuring device has a temperature sensor designed as a semiconductor chip:
- Such a temperature sensor measures a temperature by means of an integrated circuit arranged on a semiconductor crystal.
- the temperature is characterized by a digital measured value.
- the invention is based on the surprising finding that such a temperature sensor can be used reliably in the extreme environmental conditions of a high-voltage magnet. In particular, tests have shown that this temperature sensor can withstand the high voltages in the long term.
- Such a temperature sensor is inexpensive and maintenance-free. It can also be used in areas of the high-voltage machine that are difficult to access. Compared to other high voltage resistant temperature measurement methods, e.g. B. by means of fiber-optic temperature measuring systems, the temperature sensor can be used with considerably less installation effort and a considerably longer service life.
- the temperature sensor Compared to infrared measuring systems or radiation pyrometers, which can be used to measure surface temperatures, the temperature sensor has the advantage of being directly seen measuring point to be attachable. In contrast, with infrared measuring systems or radiation pyrometers, a minimum distance from live parts is always required for insulation strength.
- the temperature measuring device preferably has an electronic module which is electrically connected to the temperature sensor.
- the electronic module further preferably has a memory for storing measured values characterizing a temperature in each case. This makes it possible to store a number of temperatures, preferably a temperature profile over time. Reading the memory can then, for. B. at suitable check times.
- the electronic module preferably has a microprocessor and a timer, a chronological sequence of the storage of the measured values being controllable by the microprocessor and the timer.
- the electronics module can thus, for. For example, a time interval for successive measurements of the temperature can be defined.
- a start or end time for a temperature measurement can be specified in a simple manner.
- the electronics module and the temperature sensor are preferably spatially separated from one another, preferably by at least 10 cm.
- the temperature sensor can furthermore be arranged at measuring points which are difficult to access or are critical with regard to high voltage, without the electronics module thereby being affected.
- a maximum temperature that is decisive for the electronic module when selecting the measuring point is generally not critical due to the spatial separation.
- the electronics module and the temperature sensor are preferably not separated from one another by more than one meter. In particular, this has the consequence that signals which are between the electronic module and the temperature raturensor be replaced, not significantly impaired in their quality.
- the electronics module preferably has a transmission device for the contactless transmission of signals, in particular by means of infrared radiation.
- a contactless transmission achieves in particular a separation between the high-voltage potential at which the temperature measurement takes place and an earth potential at which the temperature measurement is evaluated.
- no other transmission means e.g. B. cable required.
- the electronics module preferably has a receiving device for the contactless reception of signals, in particular by means of infrared radiation.
- the electronics module preferably has a power supply by means of a solar cell.
- the electronics module preferably has a power supply by means of inductive generation of electrical energy from a magnetic field surrounding the electronics module.
- a local, independent power supply for the electronic module is possible by supplying the electronic module with a solar cell or with magnetic stray fields in the vicinity. This means that there is no need to provide transmission links for the power supply, which would in particular lead to problems of potential separation between high voltage and earth potential.
- the turbogenerator has a rotor with an electrical rotor winding, the temperature sensor being preferably arranged on the rotor, more preferably on the rotor winding. Temperature measurement on the rotor or on the rotor winding is particularly difficult since high centrifugal forces occur due to high rotational speeds. With the help of tests, it was possible to prove that the temperature sensor and also that
- At least two temperature measuring devices are preferably provided on the electrical machine, wherein each temperature measuring device has its own identification unit by means of which it can be identified and each temperature measuring device can be read out by a common evaluation unit.
- an identification unit can e.g. be stored in a microprocessor of the electronic module as an identification number.
- several temperature measuring devices can be operated in a simple manner with a single evaluation unit. A transmission of a measured temperature value is combined with the identification number of the respective temperature measuring device, so that an unambiguous assignment of the measured temperature to the measuring point is ensured.
- the object directed to a method is achieved by a method for measuring a temperature in a turbogenerator, in which the temperature is determined as a digital measured value by means of a semiconductor chip, the measured value is transmitted to an electronic module and from there to an evaluation unit; is transmitted.
- the measured value is preferably stored in the electronic module.
- the measured value is preferably transmitted from the electronic module to the evaluation unit without contact, in particular by means of infrared radiation.
- FIG. 2 shows a turbogenerator with a temperature measuring device.
- FIG. 1 shows a temperature measuring device 1.
- the temperature measuring device 1 has a measuring unit 3 and an evaluation unit 5.
- the measuring unit 3 has a temperature sensor 7 which is designed as a semiconductor chip.
- the temperature sensor 7 is electrically connected to an electronics module 9.
- the electronics module 9 is electrically connected to a power supply unit 11.
- the electronic module 9 has a memory 13, a microprocessor 15, a timer 17, a receiving unit 19 and a transmitting unit 20.
- the memory 13 is electrically connected to the microprocessor 15.
- the microprocessor 15 has an identification unit 16.
- the microprocessor 15 is connected to the timer 17.
- the microprocessor 15 is also electrically connected to the receiving unit 19 and to the transmitting unit 20.
- the evaluation unit 5 has a communication unit 21 and a processing unit 23. The evaluation unit 5 communicates with the electronics module 9 of the measuring unit 3 via the communication unit 21 with transmission signals 25 and reception signals 27.
- the temperature sensor 7 measures a local temperature.
- the temperature sensor is arranged on a winding rod of the electrical winding of the stator or rotor of a turbogenerator and measures its local temperature.
- this temperature is measured directly as a digital measured value.
- This measured value is forwarded to the electronics module 9.
- the measured value is stored in the memory 13 in the electronics module 9.
- a time sequence for storing measured values in the memory 13 is controlled. For example, with the help of the microprocessor 15 and the timer 17, a temperature measurement value is stored in the memory 13 every minute.
- the power supply for the temperature measurement by means of the temperature sensor 7 and the control and storage of the temperature measurement by means of the electronics module 9 is carried out by the power supply unit 11.
- B. have a battery. However, it can also have a solar cell through which electrical energy for supplying the measuring unit 3 is obtained from ambient light. This generation of electrical energy can also take place in the power supply unit 11 by inductive generation of an electrical voltage by means of time-varying magnetic stray fields in the vicinity of the power supply unit 11.
- the temperature measurement values measured by the measuring unit 3 are read out by the evaluation unit 5.
- a transmission signal 25 is transmitted to the reception unit 19 of the electronics module 9. This causes the memory content of the memory 13 to be queried.
- the memory content is transmitted via the transmission unit 20 as a reception signal 27 to the communication unit 21 of the evaluation unit 5.
- the communication unit 21 transmits the measured temperature values to the processing unit 23.
- B. be a personal computer.
- the temperature measurement values can then be represented by the evaluation unit 5.
- Such a temperature measuring device 1 is used for temperature measurement in a turbogenerator 41. This is explained in more detail with reference to FIG. 2.
- FIG. 2 shows a longitudinal section of a turbogenerator 41.
- the turbogenerator 41 has a stator 43, which, not shown here, is constructed from a laminated core and an electrical stator winding.
- the stator 43 surrounds a rotor 45.
- the rotor 45 has a shaft 47 and an electrical rotor winding 49 arranged on the shaft 47.
- the stator 43 and the rotor 45 are arranged in a common housing 51.
- the turbogenerator 41 has five temperature measuring devices 1A, IB, IC, 1D, 1E according to FIG. 1.
- Two temperature measuring devices 1A, IB are arranged opposite one another on the rotor 45.
- the respective temperature sensors 7A, 7B are arranged on the rotor winding 49.
- the respective electronic modules 9A, 9B are arranged on the shaft 47 outside the housing 51.
- Each temperature measuring device 1A, IB can be identified by a respective identification unit 16 (see FIG. 1), which is not shown here.
- Each electronics module 9A, 9B transmits the temperature measured by the respective temperature sensor 7A, 7B to a common communication unit 21 by means of an infrared signal 27A, 27B.
- the signal 27A, 27B is recorded, which, when the rotor 45 rotates, just enters the reception area of the communication unit 21.
- the signals 27A, 27B are passed out of the housing 51 via a bushing 53
- the identification unit 16 is used to identify which temperature measuring devices 1A, IB the currently transmitted infrared signal 27A, 27B is to be assigned to.
- the temperature sensors 7A, 7B withstand both the high voltages in the turbogenerator 41 and the high centrifugal forces which occur when the rotor 45 rotates.
- the respective electronics module 9A, 9B is spatially separated from the temperature sensor 7A, 7B, so that high temperatures in the electrical rotor winding 49 have no harmful effects on the electronics modules 9A, 9B.
- the temperature measuring device IC is arranged on the stator 43.
- the temperature sensor 7C is designed as a slot thermometer, so it measures a winding temperature in a slot in the laminated core of the stator 43.
- the electronics module 9C is separate from the Temperature sensor 7C arranged in a position that is harmless with regard to occurring voltages and temperatures.
- the temperature measurement values are transmitted to the processing unit 23 via a feedthrough 53 through the housing 51.
- the temperature measuring devices ID and 1E are also arranged on the stator and are shown here somewhat enlarged, on the conductor bars 60, 62 of the winding head 63.
- the two temperature measuring devices ID and 1E transmit with their respective electronic modules 9D, 9E to a common communication unit 21D, with a signal assignment via the respective identification units 16, not shown in detail.
- a clock generator 64 is arranged on the shaft 47, which is connected to the processing unit 23 via a line 66 and is used for synchronization in the transmission of the signals 27.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020017011812A KR20020001776A (ko) | 1999-03-17 | 2000-03-06 | 전기 고압 기계, 특히 터보 제너레이터 및 전기 고압 기계내 온도를 측정하는 방법 |
PL00350616A PL350616A1 (en) | 1999-03-17 | 2000-03-06 | Electric high voltage machine, especially turbo generator, and method for measuring a temperature in an electric high voltage machine |
EP00926731A EP1161662A1 (de) | 1999-03-17 | 2000-03-06 | Elektrische hochspannungsmaschine, insbesondere turbogenerator, und verfahren zur messung einer temperatur in einer elektrischen hochspannungsmaschine |
JP2000605172A JP2002539753A (ja) | 1999-03-17 | 2000-03-06 | 高電圧電気機械、特にタービン発電機及び高電圧電気機械における温度測定方法 |
US09/953,727 US20020038192A1 (en) | 1999-03-17 | 2001-09-17 | Electrical high-voltage machine, in particular a turbo-generator, and method for measuring a temperature in an electrical high-voltage machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99105488 | 1999-03-17 | ||
EP99105488.3 | 1999-03-17 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/953,727 Continuation US20020038192A1 (en) | 1999-03-17 | 2001-09-17 | Electrical high-voltage machine, in particular a turbo-generator, and method for measuring a temperature in an electrical high-voltage machine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000055588A1 true WO2000055588A1 (de) | 2000-09-21 |
Family
ID=8237793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/001951 WO2000055588A1 (de) | 1999-03-17 | 2000-03-06 | Elektrische hochspannungsmaschine, insbesondere turbogenerator, und verfahren zur messung einer temperatur in einer elektrischen hochspannungsmaschine |
Country Status (7)
Country | Link |
---|---|
US (1) | US20020038192A1 (de) |
EP (1) | EP1161662A1 (de) |
JP (1) | JP2002539753A (de) |
KR (1) | KR20020001776A (de) |
CN (1) | CN1343304A (de) |
PL (1) | PL350616A1 (de) |
WO (1) | WO2000055588A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1881311A1 (de) * | 2006-07-17 | 2008-01-23 | Ziehl industrie-elektronik GmbH + Co. | Vorrichtung zur Temperaturerfassung in Umgebungen mit starken elektromagnetischen Wechselfeldern und/oder an rotierenden Teilen |
DE102012011003A1 (de) | 2012-06-02 | 2013-12-05 | Volkswagen Aktiengesellschaft | Elektromotor |
DE102012011004A1 (de) | 2012-06-02 | 2013-12-05 | Volkswagen Aktiengesellschaft | Elektromotor sowie Verfahren zur Bildung eines Aufnahmeraums für einen Temperatursensor in einem Elektromotor |
DE102012010995A1 (de) * | 2012-06-02 | 2013-12-05 | Volkswagen Aktiengesellschaft | Elektromotor sowie Verfahren zur Bestimmung der Temperatur in dem Wickelkopf eines Elektromotors |
DE102018220676A1 (de) | 2018-11-30 | 2020-06-04 | Robert Bosch Gmbh | Rotor eines Elektromotors mit einem Temperatursensor |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101515967B1 (ko) * | 2013-11-14 | 2015-05-04 | 한국철도기술연구원 | 광전스위치를 이용한 철도차량 추진용 영구자석 동기전동기의 회전자 온도 검출장치 |
DE202018103227U1 (de) * | 2018-06-08 | 2019-09-11 | Inter Control Hermann Köhler Elektrik GmbH & Co. KG | Elektromotor |
US20230032445A1 (en) * | 2020-02-20 | 2023-02-02 | Mitsubishi Electric Corporation | Rotating electric machine system |
DE102021201601A1 (de) * | 2021-02-19 | 2022-08-25 | Zf Friedrichshafen Ag | Rotor für eine elektrische Maschine sowie elektrische Maschine mit einem Rotor |
CN113394920A (zh) * | 2021-06-24 | 2021-09-14 | 上海卓荃电子科技有限公司 | 一种电机转子测温系统、智能控温式电机 |
EP4359747A1 (de) * | 2021-06-25 | 2024-05-01 | Vermeer Manufacturing Company | Systeme und verfahren zur drahtlosen temperaturüberwachung eines geräts |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2085167A (en) * | 1980-09-25 | 1982-04-21 | Northern Eng Ind | Temperature monitor for rotary component |
SU1312533A1 (ru) * | 1985-09-30 | 1987-05-23 | Всесоюзный Научно-Исследовательский Экспериментально-Конструкторский Институт Электробытовых Машин И Приборов | Устройство дл температурной диагностики обмотки статора электрической машины |
DE4005396A1 (de) * | 1990-02-21 | 1991-08-22 | Bayerische Motoren Werke Ag | Messsignal-uebertragungsvorrichtung an einem kraftfahrzeug |
US5257863A (en) * | 1992-07-30 | 1993-11-02 | Electric Power Research Institute, Inc | Electronic rotor temperature sensor |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3873817A (en) * | 1972-05-03 | 1975-03-25 | Westinghouse Electric Corp | On-line monitoring of steam turbine performance |
US3881181A (en) * | 1973-02-22 | 1975-04-29 | Rca Corp | Semiconductor temperature sensor |
-
2000
- 2000-03-06 EP EP00926731A patent/EP1161662A1/de not_active Withdrawn
- 2000-03-06 JP JP2000605172A patent/JP2002539753A/ja not_active Withdrawn
- 2000-03-06 PL PL00350616A patent/PL350616A1/xx not_active Application Discontinuation
- 2000-03-06 CN CN00805006A patent/CN1343304A/zh active Pending
- 2000-03-06 KR KR1020017011812A patent/KR20020001776A/ko not_active Application Discontinuation
- 2000-03-06 WO PCT/EP2000/001951 patent/WO2000055588A1/de not_active Application Discontinuation
-
2001
- 2001-09-17 US US09/953,727 patent/US20020038192A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2085167A (en) * | 1980-09-25 | 1982-04-21 | Northern Eng Ind | Temperature monitor for rotary component |
SU1312533A1 (ru) * | 1985-09-30 | 1987-05-23 | Всесоюзный Научно-Исследовательский Экспериментально-Конструкторский Институт Электробытовых Машин И Приборов | Устройство дл температурной диагностики обмотки статора электрической машины |
DE4005396A1 (de) * | 1990-02-21 | 1991-08-22 | Bayerische Motoren Werke Ag | Messsignal-uebertragungsvorrichtung an einem kraftfahrzeug |
US5257863A (en) * | 1992-07-30 | 1993-11-02 | Electric Power Research Institute, Inc | Electronic rotor temperature sensor |
Non-Patent Citations (2)
Title |
---|
CASADY J B ET AL: "IEEE TRANSACTIONS ON COMPONENTS, PACKAGING AND MANUFACTURING TECHNOLOGY: PART A", IEEE TRANSACTIONS ON COMPONENTS, PACKAGING AND MANUFACTURING TECHNOLOGY: PART A, vol. 19, no. 3, 1 September 1996 (1996-09-01), pages 416 - 422, XP000624144, ISSN: 1070-9886 * |
GOODENOUGH F: "MONOLITHIC SILICON TEMPERATURE SENSORS CHALLENGE THERMISTORS RTDS AND THERMOCOUPLES", ELECTRONIC DESIGN, vol. 45, no. 22, 13 October 1997 (1997-10-13), pages 54, 56, 60, 62,, XP000752115, ISSN: 0013-4872 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1881311A1 (de) * | 2006-07-17 | 2008-01-23 | Ziehl industrie-elektronik GmbH + Co. | Vorrichtung zur Temperaturerfassung in Umgebungen mit starken elektromagnetischen Wechselfeldern und/oder an rotierenden Teilen |
DE102012011003A1 (de) | 2012-06-02 | 2013-12-05 | Volkswagen Aktiengesellschaft | Elektromotor |
DE102012011004A1 (de) | 2012-06-02 | 2013-12-05 | Volkswagen Aktiengesellschaft | Elektromotor sowie Verfahren zur Bildung eines Aufnahmeraums für einen Temperatursensor in einem Elektromotor |
DE102012010995A1 (de) * | 2012-06-02 | 2013-12-05 | Volkswagen Aktiengesellschaft | Elektromotor sowie Verfahren zur Bestimmung der Temperatur in dem Wickelkopf eines Elektromotors |
DE102018220676A1 (de) | 2018-11-30 | 2020-06-04 | Robert Bosch Gmbh | Rotor eines Elektromotors mit einem Temperatursensor |
Also Published As
Publication number | Publication date |
---|---|
KR20020001776A (ko) | 2002-01-09 |
PL350616A1 (en) | 2003-01-27 |
JP2002539753A (ja) | 2002-11-19 |
CN1343304A (zh) | 2002-04-03 |
EP1161662A1 (de) | 2001-12-12 |
US20020038192A1 (en) | 2002-03-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2619595B1 (de) | Messsystem zur überwachung mindestens einer phase eines systems | |
DE102007055795A1 (de) | Vorrichtung zur Überwachung von Bürsten, insbesondere von Schleifring- oder Kommutatorbürsten, an Elektromaschinen | |
DE102009008125B4 (de) | Modulares, erweiterbares und einen zugangsgeschützten Bereich aufweisendes Messgerät | |
EP1240704A1 (de) | Optische messeinrichtung in einem eingepressten leiterstab einer elektrischen maschine | |
WO2000055588A1 (de) | Elektrische hochspannungsmaschine, insbesondere turbogenerator, und verfahren zur messung einer temperatur in einer elektrischen hochspannungsmaschine | |
DE19523725C2 (de) | Stromerfassungsgerät zur Anbringung an mindestens einem stromdurchflossenen Leiter | |
EP3804101B1 (de) | Elektromotor | |
DE2041594B2 (de) | Einrichtung zur ueberwachung des luftspaltes in rotierenden elektrischen maschinen | |
DE202007018305U1 (de) | Messeinrichtung an Steckkontakten | |
EP2619845B1 (de) | Batteriesystem zur messung von batteriemodulspannungen | |
DE102017122283B3 (de) | Überwachung eines Energieparameters in einer Verteilstation | |
EP3772796A1 (de) | Sammelschienenhalter und installationsverteiler | |
EP2555003B1 (de) | Stromwandler sowie Lasttrenner mit einem solchen | |
EP2960664A1 (de) | Modul, Funktionseinheit sowie System zur Erfassung von Leistungen und Energiemengen in Leitern | |
EP0609261B1 (de) | Einrichtung zur überprüfung eines elektrischen antriebs | |
DE102017218842A1 (de) | Sensorvorrichtung und elektrische Maschine | |
DE1913285A1 (de) | Elektrizitaetszaehler mit Messwerken ohne mechanisch bewegte Teile in Bausatzausfuehrung zwecks schneller und gefahrloser Auswechslung vornehmlich der fehleranfaelligeren Bauelemente am Verwendungsort ohne Abtrennung des Verbrauchers vom Netz | |
EP3388848B1 (de) | Verfahren, messeinrichtung und messsystem, zum ermitteln zumindest einer diagnosegrösse in einem elektrischen energieversorgungsnetz | |
EP3729032A1 (de) | Elektrischer stecker mit einem temperatursensor | |
EP2262082A1 (de) | Elektrodynamische Maschine | |
EP2034591B1 (de) | Elektrodynamische Maschine mit Ständerwicklungstemperatur-Messeinrichtung | |
DE102004048928B4 (de) | Temperatursensor und Elektromotor | |
EP3821217B1 (de) | Elektrische maschine mit schutztrennungsmodul | |
DE102020120978B4 (de) | Intelligentes Messsystem mit einem digitalen Stromzähler und einer Kommunikationsvorrichtung | |
DE2406778A1 (de) | Anordnung zur messung der wicklungstemperatur elektrischer maschinen mittels thermoelementen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 00805006.6 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CN IN JP KR PL US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2000926731 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2000 605172 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: IN/PCT/2001/940/KOL Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09953727 Country of ref document: US Ref document number: 1020017011812 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2000926731 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1020017011812 Country of ref document: KR |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2000926731 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1020017011812 Country of ref document: KR |