CA2370174A1 - Status detection apparatus and method for fluid-filled electrical equipment - Google Patents
Status detection apparatus and method for fluid-filled electrical equipment Download PDFInfo
- Publication number
- CA2370174A1 CA2370174A1 CA002370174A CA2370174A CA2370174A1 CA 2370174 A1 CA2370174 A1 CA 2370174A1 CA 002370174 A CA002370174 A CA 002370174A CA 2370174 A CA2370174 A CA 2370174A CA 2370174 A1 CA2370174 A1 CA 2370174A1
- Authority
- CA
- Canada
- Prior art keywords
- fluid
- electrical equipment
- sensors
- detection apparatus
- status detection
- 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.)
- Granted
Links
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; viscous liquids; paints; inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; viscous liquids; paints; inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2835—Oils, i.e. hydrocarbon liquids specific substances contained in the oil or fuel
- G01N33/2841—Oils, i.e. hydrocarbon liquids specific substances contained in the oil or fuel gas in oil, e.g. hydrogen in insulating oil
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; viscous liquids; paints; inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2888—Lubricating oil characteristics, e.g. deterioration
Abstract
A status detection apparatus for electrical equipment includes a plurality of distributed multiparameter sensors in a contain-ment vessel or other fluid filled region of the electrical equipment. The sensors are capable of providing data relating to plural parameters of the fluid simultaneously at different positions in the fluid. The data provided by the sensors can be processed to permit localization of incipient faults or can indicate other operating states when combined with known flow data of the fluid through the electrical equipment. A method for detecting status of electrical equipment includes sensing parameters simultaneously at multiple locations in the fluid and determining operating status based on the sensed parameters.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/302,299 | 1999-04-30 | ||
US09/302,299 US6494617B1 (en) | 1999-04-30 | 1999-04-30 | Status detection apparatus and method for fluid-filled electrical equipment |
PCT/US2000/011121 WO2000067019A1 (en) | 1999-04-30 | 2000-04-25 | Status detection apparatus and method for fluid-filled electrical equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2370174A1 true CA2370174A1 (en) | 2000-11-09 |
CA2370174C CA2370174C (en) | 2009-03-24 |
Family
ID=23167151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002370174A Expired - Fee Related CA2370174C (en) | 1999-04-30 | 2000-04-25 | Status detection apparatus and method for fluid-filled electrical equipment |
Country Status (10)
Country | Link |
---|---|
US (1) | US6494617B1 (en) |
EP (1) | EP1177437B1 (en) |
JP (1) | JP5196692B2 (en) |
AR (1) | AR028825A1 (en) |
BR (1) | BR0010695B1 (en) |
CA (1) | CA2370174C (en) |
DE (1) | DE60003675T2 (en) |
ES (1) | ES2202118T3 (en) |
MX (1) | MXPA01010907A (en) |
WO (1) | WO2000067019A1 (en) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19935515A1 (en) * | 1999-07-28 | 2001-02-01 | Abb Patent Gmbh | Device for measuring the contact pressure of a winding press element in a power transformer |
GB0019176D0 (en) * | 2000-08-05 | 2000-09-27 | Cambridge Material Science Lim | Monitoring thermal events |
AU2002311624A1 (en) * | 2002-03-01 | 2003-09-16 | Anil Kohli | On-line detection and measurement system for gases in oil-filled electrical equipment |
AU2003241519A1 (en) * | 2002-05-21 | 2003-12-12 | Acrolon Technologies, Inc. | System and method for temperature sensing and monitoring |
US7530257B2 (en) * | 2002-09-27 | 2009-05-12 | Honeywell International Inc. | Phased micro analyzer VIII |
US20040223882A1 (en) * | 2002-09-27 | 2004-11-11 | Ulrich Bonne | Micro-plasma sensor system |
US7494326B2 (en) * | 2003-12-31 | 2009-02-24 | Honeywell International Inc. | Micro ion pump |
US20050063865A1 (en) * | 2002-09-27 | 2005-03-24 | Ulrich Bonne | Phased VII micro fluid analyzer having a modular structure |
US7104112B2 (en) * | 2002-09-27 | 2006-09-12 | Honeywell International Inc. | Phased micro analyzer IV |
US7000452B2 (en) * | 2002-09-27 | 2006-02-21 | Honeywell International Inc. | Phased micro fluid analyzer |
US20040224422A1 (en) * | 2002-09-27 | 2004-11-11 | Ulrich Bonne | Phased micro analyzer III, IIIA |
WO2004029602A2 (en) * | 2002-09-27 | 2004-04-08 | Honeywell International Inc. | Phased micro analyser |
US6837118B2 (en) * | 2002-12-05 | 2005-01-04 | Honeywell International Inc. | Health monitor |
US6842718B2 (en) * | 2003-02-06 | 2005-01-11 | General Electric Company | Intelligent auxiliary cooling system |
US9029028B2 (en) | 2003-12-29 | 2015-05-12 | Honeywell International Inc. | Hydrogen and electrical power generator |
US20050142035A1 (en) * | 2003-12-31 | 2005-06-30 | Ulrich Bonne | Micro-discharge sensor system |
US7502109B2 (en) | 2005-05-17 | 2009-03-10 | Honeywell International Inc. | Optical micro-spectrometer |
US7578167B2 (en) * | 2005-05-17 | 2009-08-25 | Honeywell International Inc. | Three-wafer channel structure for a fluid analyzer |
US7339447B2 (en) * | 2005-12-01 | 2008-03-04 | Unelectra International Corp. | High-voltage transformer coil with acoustic wave guiding function |
DE102007015683A1 (en) * | 2007-03-31 | 2008-10-02 | Abb Research Ltd. | Method for determining spatially distributed physical and chemical quantities of a fluid |
DE102007026175B4 (en) * | 2007-06-05 | 2009-10-01 | Areva Energietechnik Gmbh | Method for determining the aging of an electrical transformer |
US20080312557A1 (en) * | 2007-06-18 | 2008-12-18 | Dong Uk Cho | Method and system for measuring urinary flow rate |
US7747417B2 (en) * | 2007-08-06 | 2010-06-29 | Arizona Public Service Company | Method and system for transformer dissolved gas harmonic regression analysis |
US8002957B2 (en) * | 2008-01-02 | 2011-08-23 | General Electric Company | Sensor apparatus for measuring and detecting acetylene and hydrogen dissolved in a fluid |
AU2009200007A1 (en) * | 2008-01-10 | 2009-07-30 | Chk Gridsense Pty Ltd | A transformer and a method of monitoring an operation property of the transformer |
CA2619920A1 (en) * | 2008-02-06 | 2009-08-06 | Hydro-Quebec | Method for measuring the temperature of the hot spot in an electric device containing oil |
KR101280571B1 (en) | 2008-12-19 | 2013-07-02 | 도트 메트릭스 테크놀로지스, 인코포레이티드 | Systems and methods for performing the bacterial disinfection of a fluid using point radiation sources |
US20100277869A1 (en) * | 2009-09-24 | 2010-11-04 | General Electric Company | Systems, Methods, and Apparatus for Cooling a Power Conversion System |
EP2420845B1 (en) * | 2010-08-19 | 2014-12-10 | Abb Ag | System for generating / collecting, saving and making available data from an electric facility comprising a cooling or working liquid |
US8836523B2 (en) | 2011-05-20 | 2014-09-16 | General Electric Company | Fault gas alarm system |
US8405991B2 (en) * | 2011-05-20 | 2013-03-26 | General Electric Company | Heat transfer element temperature variation system |
US9046423B2 (en) * | 2012-08-01 | 2015-06-02 | Qualitrol Company, Llc | Hybrid mechanical and electrical transformer monitor |
KR101990780B1 (en) * | 2012-11-01 | 2019-06-19 | 한국전력공사 | Apparatus for measuring dissolved gas concentrations in oil filled transformer and method thereof |
US11338048B2 (en) | 2012-12-11 | 2022-05-24 | Aquisense Technologies Llc | Apparatus for irradiation |
EP2989705B1 (en) * | 2013-04-22 | 2021-12-22 | Hitachi Energy Switzerland AG | Method and apparatus for defect pre-warning of power device |
EP2899728B2 (en) | 2014-01-22 | 2019-11-13 | ABB Schweiz AG | A device comprising a high voltage apparatus including a fluid and equipment for detecting one or more physical properties of the fluid |
US20160064142A1 (en) * | 2014-08-26 | 2016-03-03 | Roman Manufacturing, Inc. | Transformer with integrated fluid flow sensor |
DE102016219378A1 (en) * | 2016-10-06 | 2018-04-12 | Siemens Aktiengesellschaft | Electrical device with different degrees of cooled encapsulation spaces |
DE102016219406A1 (en) | 2016-10-06 | 2018-04-12 | Siemens Aktiengesellschaft | Electrical device with several cooling units |
EP3563134A4 (en) * | 2016-12-31 | 2020-07-15 | ABB Schweiz AG | Systems and methods for monitoring components in a power transformer or the like |
US10151695B2 (en) | 2017-03-16 | 2018-12-11 | Oetiker Ny, Inc. | Optical assurance cap |
DE102018201488A1 (en) | 2018-01-31 | 2019-08-01 | Siemens Aktiengesellschaft | Electrical device with pressing plates for clamping a magnetizable core |
JP7385104B2 (en) * | 2019-07-04 | 2023-11-22 | 富士通株式会社 | Combustion stop device and liquid immersion cooling system |
EP3767651A1 (en) * | 2019-07-17 | 2021-01-20 | Siemens Aktiengesellschaft | Method for operating a cooling system of a transformer |
Family Cites Families (95)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2795779A (en) | 1954-12-20 | 1957-06-11 | Westinghouse Electric Corp | Transformer overload indicators |
US2917701A (en) * | 1957-08-02 | 1959-12-15 | Mc Graw Edison Co | Forced-cooled transformer having winding temperature relay |
US3144770A (en) * | 1961-01-30 | 1964-08-18 | Gen Electric | Means for determining an internal condition in electrical apparatus |
US3680359A (en) | 1968-05-02 | 1972-08-01 | Mc Graw Edison Co | Transformer having incipient fault detector |
JPS5145770B1 (en) | 1970-08-27 | 1976-12-06 | ||
US3797314A (en) * | 1972-07-10 | 1974-03-19 | Asea Ab | Means for determining the top oil temperature in transformers |
US3821605A (en) | 1972-08-10 | 1974-06-28 | Westinghouse Electric Corp | Remote transformer monitoring system |
SE370793B (en) * | 1973-03-01 | 1974-10-28 | Asea Ab | |
US3832600A (en) | 1973-05-17 | 1974-08-27 | Westinghouse Electric Corp | Transformer internal fault detector |
US3864628A (en) | 1973-05-29 | 1975-02-04 | Inst Gas Technology | Selective solid-state gas sensors and method |
US3866460A (en) | 1973-05-30 | 1975-02-18 | Westinghouse Electric Corp | Gas detector for fluid-filled electrical apparatus |
US3855503A (en) | 1973-09-26 | 1974-12-17 | Westinghouse Electric Corp | Remotely monitored and controlled transformer |
US3960017A (en) * | 1975-02-10 | 1976-06-01 | Qualitrol Corporation | Thermometer insertable in winding of fluid cooled transformer |
US4236404A (en) | 1976-08-31 | 1980-12-02 | General Electric Company | Device for monitoring dissolved gases in electrical insulating liquids such as transformer oils |
AT345014B (en) * | 1976-10-08 | 1978-08-25 | Elin Union Ag | TEMPERATURE MEASURING DEVICE FOR TRANSFORMERS AND REACTORS |
US4058373A (en) | 1977-02-18 | 1977-11-15 | Electric Power Research Institute | Combustible gas-in-oil detector |
CA1098187A (en) * | 1977-02-23 | 1981-03-24 | George F. Mitchell, Jr. | Vaporization cooled and insulated electrical inductive apparatus |
US4112737A (en) | 1977-04-27 | 1978-09-12 | Morgan Schaffer Corporation | Transformer fault detection |
US4129501A (en) | 1977-09-07 | 1978-12-12 | Haynes Edward M | Method and apparatus for detecting water in oil |
US4179927A (en) * | 1977-09-28 | 1979-12-25 | Electric Power Research Institute, Inc. | Temperature sensing device |
JPS5466194A (en) | 1977-11-04 | 1979-05-28 | Kuraray Co | Fet sensor |
US4232551A (en) * | 1979-03-19 | 1980-11-11 | General Electric Company | Leak detector for vaporization cooled transformers |
CA1167279A (en) | 1980-05-20 | 1984-05-15 | Katuo Sugawara | System for monitoring abnormality of oil-filled electric devices |
US4347732A (en) | 1980-08-18 | 1982-09-07 | Leary David J | Gas monitoring apparatus |
US4394635A (en) * | 1981-04-16 | 1983-07-19 | General Electric Company | Method for determining dissolved gas concentrations in dielectric coolants |
US4508461A (en) | 1981-09-22 | 1985-04-02 | Westinghouse Electric Corp. | Distributed fiber optic temperature monitoring apparatus and method |
US4446420A (en) | 1982-01-28 | 1984-05-01 | Hydro Quebec | Method and device for detecting and locating fault and/or partial discharges in a gas-insulated electrical equipment |
JPS58158551A (en) * | 1982-03-16 | 1983-09-20 | Kanegafuchi Chem Ind Co Ltd | Method for measuring combustible component |
US4483631A (en) * | 1982-08-02 | 1984-11-20 | Hri, Inc. | Multiple thermocouple system for high temperature reactors |
US5696863A (en) | 1982-08-06 | 1997-12-09 | Kleinerman; Marcos Y. | Distributed fiber optic temperature sensors and systems |
US5363463A (en) | 1982-08-06 | 1994-11-08 | Kleinerman Marcos Y | Remote sensing of physical variables with fiber optic systems |
AT378623B (en) * | 1982-11-15 | 1985-09-10 | Elin Union Ag | DEVICE FOR THE THERMAL MONITORING OF LIQUID-COOLED TRANSFORMERS AND THROTTLE COILS |
JPS6058601A (en) * | 1983-09-12 | 1985-04-04 | Toshiba Corp | Monitoring apparatus for oil-immersed electric apparatus |
US4654806A (en) | 1984-03-30 | 1987-03-31 | Westinghouse Electric Corp. | Method and apparatus for monitoring transformers |
US4517468A (en) | 1984-04-30 | 1985-05-14 | Westinghouse Electric Corp. | Diagnostic system and method |
US4644479A (en) | 1984-07-31 | 1987-02-17 | Westinghouse Electric Corp. | Diagnostic apparatus |
JPS6273607A (en) * | 1985-09-27 | 1987-04-04 | Toshiba Corp | Abnormality detection device for oil-immersed apparatus |
JP2510498B2 (en) | 1985-10-14 | 1996-06-26 | 東京電力株式会社 | Transformer failure detection method and device |
US4754405A (en) | 1986-02-14 | 1988-06-28 | Qualitrol Corporation | Tri-phase electronic temperature controller |
GB8606045D0 (en) | 1986-03-12 | 1986-04-16 | Emi Plc Thorn | Gas sensitive device |
US4763514A (en) | 1986-05-14 | 1988-08-16 | Mitsubishi Denki Kabushiki Kaisha | Monitoring equipment for dissolved gas in insulating oil |
US4730479A (en) | 1986-06-23 | 1988-03-15 | The Standard Oil Company | Temperature and humidity compensation for gas detection apparatus |
IT1196798B (en) | 1986-11-24 | 1988-11-25 | Cselt Centro Studi Lab Telecom | TEMPERATURE DISTRIBUTED SENSOR USING AN OPTICAL FIBER AS A SENSITIVE ELEMENT |
US4890478A (en) | 1987-09-11 | 1990-01-02 | Westinghouse Electric Corp. | Gas-in-oil monitoring apparatus and method |
US4827487A (en) | 1987-12-11 | 1989-05-02 | Westinghouse Electric Corp. | Distributed temperature sensing system for stator windings |
US4823224A (en) | 1988-01-21 | 1989-04-18 | Qualitrol Corporation | Rapid pressure rise circuit |
US5132920A (en) | 1988-02-16 | 1992-07-21 | Westinghouse Electric Corp. | Automated system to prioritize repair of plant equipment |
US4944178A (en) | 1988-04-18 | 1990-07-31 | Nissin Electric Co., Ltd | Apparatus and method for measuring dissolved gas in oil |
US4964125A (en) | 1988-08-19 | 1990-10-16 | Hughes Aircraft Company | Method and apparatus for diagnosing faults |
US5099436A (en) | 1988-11-03 | 1992-03-24 | Allied-Signal Inc. | Methods and apparatus for performing system fault diagnosis |
US4947104A (en) | 1989-01-19 | 1990-08-07 | Stephen C. Pyke | Device and method for detection of fluid concentration utilizing charge storage in a MIS diode |
US5018075A (en) | 1989-03-24 | 1991-05-21 | Bull Hn Information Systems Inc. | Unknown response processing in a diagnostic expert system |
DE3914860A1 (en) | 1989-05-07 | 1990-11-08 | Hartmann Hans | HYDRAULIC DRIVE DEVICE |
US5113277A (en) | 1989-06-22 | 1992-05-12 | Hitachi Cable Limited | Fiber optic distributed temperature sensor system |
US4953387A (en) | 1989-07-31 | 1990-09-04 | The Regents Of The University Of Michigan | Ultrathin-film gas detector |
US5225395A (en) | 1989-08-11 | 1993-07-06 | Kabushiki Kaisha Toshiba | Supervisory system for superconductive transformer |
US5123017A (en) | 1989-09-29 | 1992-06-16 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Remote maintenance monitoring system |
US5062092A (en) | 1989-11-24 | 1991-10-29 | General Electric Company | Jukebox having rotatable disk stack |
FR2656098B1 (en) | 1989-12-20 | 1992-04-24 | Inst Francais Du Petrole | DEVICE FOR STUDYING THE AGING OF A FLUID IN CIRCULATION, UNDER SPECIFIC CONDITIONS IMPOSED. |
JP3268529B2 (en) | 1990-03-14 | 2002-03-25 | 株式会社日立製作所 | Knowledge database processing system and expert system |
JPH03269215A (en) * | 1990-03-19 | 1991-11-29 | Hitachi Ltd | Measured-value displaying apparatus |
US5035511A (en) | 1990-04-10 | 1991-07-30 | The Babcock & Wilcox Company | Distributed fiber optic temperature sensor based on time domain transmission |
JP2878387B2 (en) * | 1990-05-10 | 1999-04-05 | 株式会社ジャパンエナジー | Insulation material deterioration diagnosis device |
DE69121789T2 (en) | 1990-06-04 | 1997-04-03 | Hitachi Ltd | Control device for controlling a controlled system and control method therefor |
US5286109A (en) | 1990-06-28 | 1994-02-15 | Schlumberger Industries Limited | Distributed temperature sensor |
JPH04177710A (en) * | 1990-11-13 | 1992-06-24 | Toshiba Corp | Abnormality diagnosis device of gas insulation equipment |
US5133046A (en) | 1991-01-03 | 1992-07-21 | Pickard, Lowe And Carrick (Plc) | Computer-based diagnostic expert system organized according to Bayesian theory |
US5078437A (en) | 1991-03-05 | 1992-01-07 | Abb Power T&D Company, Inc. | Transformer having an integral cabinet with door latching and locking apparatus |
US5191206A (en) | 1991-04-16 | 1993-03-02 | Electric Power Research Institute, Inc. | Distributed fiber optic sensor using clad material light backscattering |
US5255208A (en) | 1991-08-08 | 1993-10-19 | Aeg Westinghouse Transportation Systems, Inc. | On-line processor based diagnostic system |
US5414645A (en) | 1991-10-25 | 1995-05-09 | Mazda Motor Corporation | Method of fault diagnosis in an apparatus having sensors |
FR2684248B1 (en) | 1991-11-22 | 1997-04-30 | Pioch Sa | ELECTRONIC APPARATUS FOR MEASURING AND PROTECTING THE OPERATION OF THE OIL TRANSFORMER. |
US5261747A (en) * | 1992-06-22 | 1993-11-16 | Trustees Of Dartmouth College | Switchable thermoelectric element and array |
WO1994010553A1 (en) | 1992-10-23 | 1994-05-11 | Optex Biomedical, Inc. | Fibre-optic probe for the measurement of fluid parameters |
US5400018A (en) | 1992-12-22 | 1995-03-21 | Caterpillar Inc. | Method of relaying information relating to the status of a vehicle |
US5445347A (en) | 1993-05-13 | 1995-08-29 | Hughes Aircraft Company | Automated wireless preventive maintenance monitoring system for magnetic levitation (MAGLEV) trains and other vehicles |
US5396172A (en) | 1993-07-20 | 1995-03-07 | Ontario Hydro | Transformer fault analyzer |
US5591321A (en) | 1993-11-02 | 1997-01-07 | Electric Power Research Institute | Detection of fluids with metal-insulator-semiconductor sensors |
US5417821A (en) | 1993-11-02 | 1995-05-23 | Electric Power Research Institute | Detection of fluids with metal-insulator-semiconductor sensors |
US5566092A (en) | 1993-12-30 | 1996-10-15 | Caterpillar Inc. | Machine fault diagnostics system and method |
JPH07230929A (en) * | 1994-02-16 | 1995-08-29 | Meidensha Corp | Internal failure-diagnosing method for oil immersed stationary electric machine |
US5448772A (en) | 1994-08-29 | 1995-09-05 | Motorola, Inc. | Stacked double balanced mixer circuit |
US5586305A (en) | 1994-10-21 | 1996-12-17 | Hewlett-Packard Company | Smart distributed measurement and control system with a flexible architecture |
JPH08124751A (en) * | 1994-10-25 | 1996-05-17 | Mitsubishi Electric Corp | Method for diagnosing service life and abnormality of oil-immersed electric equipment |
DE69513937T2 (en) | 1994-11-17 | 2000-07-20 | Alcatel Sa | Method for measuring and detecting physical quantities using a multi-point sensor |
JPH08273939A (en) * | 1995-03-30 | 1996-10-18 | Hitachi Ltd | Gas-insulated transformer |
US5806011A (en) | 1995-12-04 | 1998-09-08 | General Electric Company | Method and apparatus for performance based assessment of locomotive diesel engines |
US5659126A (en) | 1996-04-19 | 1997-08-19 | Farber; Milton | Gas chromatograph techniques for on-line testing of transformer faults |
US5775808A (en) * | 1996-06-19 | 1998-07-07 | Applied Materials, Inc. | Apparatus for real-time, in situ measurement of temperature and a method of fabricating and using same |
CA2180233C (en) | 1996-06-28 | 2000-09-26 | Jean-Pierre Gibeault | Method and apparatus for thermally inducing circulation of fluid between the interior of a system and a fluid pocket attached thereto |
US5845272A (en) | 1996-11-29 | 1998-12-01 | General Electric Company | System and method for isolating failures in a locomotive |
US5936715A (en) | 1997-01-29 | 1999-08-10 | Art Group, Inc. | On-line method and apparatus for determining the condition of circulating fluids |
US5783152A (en) | 1997-03-24 | 1998-07-21 | The United States Of America As Represented By The United States Department Of Energy | Thin-film fiber optic hydrogen and temperature sensor system |
EP0932034B1 (en) * | 1998-01-27 | 2004-06-09 | Michael Hesky GmbH | Temperature measuring and monitoring device |
US6157282A (en) * | 1998-12-29 | 2000-12-05 | Square D Company | Transformer cooling method and apparatus therefor |
-
1999
- 1999-04-30 US US09/302,299 patent/US6494617B1/en not_active Expired - Fee Related
-
2000
- 2000-04-25 JP JP2000615807A patent/JP5196692B2/en not_active Expired - Fee Related
- 2000-04-25 EP EP00926362A patent/EP1177437B1/en not_active Expired - Lifetime
- 2000-04-25 BR BRPI0010695-0A patent/BR0010695B1/en not_active IP Right Cessation
- 2000-04-25 ES ES00926362T patent/ES2202118T3/en not_active Expired - Lifetime
- 2000-04-25 CA CA002370174A patent/CA2370174C/en not_active Expired - Fee Related
- 2000-04-25 DE DE60003675T patent/DE60003675T2/en not_active Expired - Lifetime
- 2000-04-25 MX MXPA01010907A patent/MXPA01010907A/en active IP Right Grant
- 2000-04-25 WO PCT/US2000/011121 patent/WO2000067019A1/en active IP Right Grant
- 2000-04-28 AR ARP000102077A patent/AR028825A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP1177437B1 (en) | 2003-07-02 |
BR0010695B1 (en) | 2012-11-27 |
DE60003675D1 (en) | 2003-08-07 |
US6494617B1 (en) | 2002-12-17 |
BR0010695A (en) | 2002-04-23 |
JP5196692B2 (en) | 2013-05-15 |
AR028825A1 (en) | 2003-05-28 |
WO2000067019A1 (en) | 2000-11-09 |
JP2002543605A (en) | 2002-12-17 |
ES2202118T3 (en) | 2004-04-01 |
DE60003675T2 (en) | 2004-04-15 |
MXPA01010907A (en) | 2002-05-06 |
CA2370174C (en) | 2009-03-24 |
EP1177437A1 (en) | 2002-02-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2370174A1 (en) | Status detection apparatus and method for fluid-filled electrical equipment | |
WO2004036379A3 (en) | Arrangement and method for detecting abnormalities and inconsistencies in a body | |
WO2002102242A1 (en) | Monitoring apparatus | |
AU6046700A (en) | Use of spatiotemporal response behavior in sensor arrays to detect analytes in fluids | |
WO2005050228A3 (en) | Electrochemical impedance measurement system and method for use thereof | |
CA2292127A1 (en) | Monitoring system for weight lifting implements | |
CA2309411A1 (en) | Abnormality detecting apparatus for a rotating electric machine | |
EP0444200A4 (en) | Piping abnormality monitoring apparatus | |
CA2354944A1 (en) | Sensor fault detection, isolation and accomodation | |
WO2002035185A3 (en) | A fault tolerant liquid measurement system using multiple-model state estimators | |
CA2263443A1 (en) | Process for determining the status of an organism by peptide measurement | |
WO2005020120A3 (en) | A system and method for detecting signal artifacts | |
FR2745093B1 (en) | METHOD AND DEVICE FOR DETECTING THE PRESENCE OF A LIVING BEING OF A PARTICULAR SPECIES IN A SPACE MONITORED BY A DOPPLER SENSOR | |
EP1106997A3 (en) | Method and device for measuring oil in water | |
WO2002018978A8 (en) | Multi-axis locator for detection of buried targets | |
CA2124299A1 (en) | Fluid level sensing systems | |
EP1999495A2 (en) | Electric field sensor for marine environments | |
WO2005022102A3 (en) | Method and system for measuring torque | |
CA2195530A1 (en) | Method and apparatus for detecting the condition of the flow of liquid metal in and from a teeming vessel | |
FR2808589B1 (en) | METHOD OF DETECTING DEFECTS IN THE OPERATION OF SENSOR SIGNALS | |
CA2321539A1 (en) | Inflow detection apparatus and system for its use | |
CA2018337A1 (en) | Register mark detection | |
WO2002044657A3 (en) | Method for detecting faulty liquid level sensors | |
EP1780555A3 (en) | Thin-film device for detection of physical quantities, in particular a magnetic field, and corresponding method of detection | |
WO2004036338A3 (en) | Context acquisition based on load sensing |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20180425 |