FR2513432A1 - Fibre=optic internal temp. sensor for transformer windings - uses differential fluorescent emission of temp. sensitive phosphors stimulated by UV light - Google Patents
Fibre=optic internal temp. sensor for transformer windings - uses differential fluorescent emission of temp. sensitive phosphors stimulated by UV light Download PDFInfo
- Publication number
- FR2513432A1 FR2513432A1 FR8215997A FR8215997A FR2513432A1 FR 2513432 A1 FR2513432 A1 FR 2513432A1 FR 8215997 A FR8215997 A FR 8215997A FR 8215997 A FR8215997 A FR 8215997A FR 2513432 A1 FR2513432 A1 FR 2513432A1
- Authority
- FR
- France
- Prior art keywords
- temp
- arrangement according
- tube
- fibre
- probe
- 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
- 239000000835 fiber Substances 0.000 title claims abstract description 25
- 238000004804 winding Methods 0.000 title abstract 3
- 239000000523 sample Substances 0.000 claims abstract description 29
- 239000013307 optical fiber Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 4
- 239000011347 resin Substances 0.000 claims abstract description 4
- -1 polypropylene-ethylene Polymers 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000004812 Fluorinated ethylene propylene Substances 0.000 claims description 2
- 229920002313 fluoropolymer Polymers 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 229920009441 perflouroethylene propylene Polymers 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 230000000638 stimulation Effects 0.000 abstract 1
- 239000011800 void material Substances 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/20—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using thermoluminescent materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0096—Radiation pyrometry, e.g. infrared or optical thermometry for measuring wires, electrical contacts or electronic systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/0215—Compact construction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
- G01J5/041—Mountings in enclosures or in a particular environment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
- G01J5/046—Materials; Selection of thermal materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
- G01J5/048—Protective parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0818—Waveguides
- G01J5/0821—Optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/36—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using ionisation of gases
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
- G01K11/3206—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering
- G01K11/3213—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering using changes in luminescence, e.g. at the distal end of the fibres
-
- 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
- G01K13/10—Thermometers specially adapted for specific purposes for measuring temperature within piled or stacked materials
-
- 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
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/58—Radiation pyrometry, e.g. infrared or optical thermometry using absorption; using extinction effect
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/60—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
-
- 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
- H01F2027/406—Temperature sensor or protection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Processing Of Terminals (AREA)
- Control Of Temperature (AREA)
Abstract
Description
Agencement d'appareil sujet à un chauffage interne et de capteur de température. Arrangement of apparatus subject to internal heating and temperature sensor.
La présente invention concerne un appareil sujet à un chauffage interne et comprenant un moyen pour surveiller la température interne résultant de ce chauffage. The present invention relates to an apparatus subject to internal heating and comprising means for monitoring the internal temperature resulting from this heating.
Les appareils tels que,par exemple, les transformateurs, les générateurs, les moteurs électriques et autres appareils analogues, utilisent habituellement des capteurs de température pour détecter les points chauds internes. Les sondes à fibre optique ont trouvé dernièrement une faveur spéciale en tant que capteursde température utilsésdans ces domaines car elles sont compactes et flexibles, insensibles aux ariations de tension élevées, ne conduisent ni l'lectricité, ni la chaleur, et sont chimiquement inertes. Devices such as, for example, transformers, generators, electric motors and the like, usually use temperature sensors to detect internal hot spots. Fiber optic probes have recently found special favor as temperature sensors used in these areas because they are compact and flexible, insensitive to high voltage ariations, do not conduct electricity or heat, and are chemically inert.
Toutefois, les fibres optiques présentent aussi un inconvénient en ce sens qu'elles sont relativement fragiles et tendent à se fissurer pendant leur manipulation, ce qui pose des problèmes,spécialement pendant l'installation des sondes à fibre optique. However, optical fibers also have a drawback in that they are relatively fragile and tend to crack during handling, which poses problems, especially during the installation of fiber optic probes.
Un objet principal de la présente invention est de remédier à ces problèmes, et c'est pourquoi la présente invention concernant un appareil comprenant une structure sujette à un chauffage interne et un capteur de température pour détecter la température à un endroit prédéterminé à l'intérieur de cette stnxture et pour fournir un signal représentant la température détectée, reside dans le fait que le capteur de température comprend, d'une part, une sonde à fibre optique qui comporte une extrémité de détection et qui est adaptée, à son extrémité opposée, pour etre raccordée à un dispositif de traitement de signaux optiques et, d'autre part, un tube protecteur destiné à cette sonde et qui s'étend jusque dans ladite structure ainsi que jusqu t audit endroit prédétermìne à l'intérieur de cette strcuture, au moins la paroi intérieure dudit tube étant formée dSune matière ayant un faible coefficient de frottement, et le tube étant réalisé et agencé de manière que l'on puisse y introduire librement ladite sonde à fibre optique et l'en enlever librement. A main object of the present invention is to remedy these problems, and that is why the present invention relating to an apparatus comprising a structure subject to internal heating and a temperature sensor for detecting the temperature at a predetermined place inside of this structure and to provide a signal representing the detected temperature, resides in the fact that the temperature sensor comprises, on the one hand, a fiber optic probe which has a detection end and which is adapted, at its opposite end, to be connected to an optical signal processing device and, on the other hand, a protective tube intended for this probe and which extends into said structure as well as up to said predetermined place inside this structure, at minus the inner wall of said tube being formed of a material having a low coefficient of friction, and the tube being produced and arranged so that one can introduce therein libr ement said fiber optic probe and remove it freely.
L'agencement ci-dessus a pour avantage que l'on peut installer la sonde à fibre optique sensiblement sans aucun risque de l'endommager et que l'on peut monter le tube tout d'abord sans que la sonde à fibre optique y soit disposée puis introduire cette dernière dans le tube protecteur lorsque l'assemblage de la structure exigeant la sonde et le montage du tube protecteur dans cette structure dont terminés et que la sonde de température ne sera soumise à aucune autre manipulation. Pour obtenir une protection supplémentaire, on peut insérer de façon amovible un fil métallique de renforcement momentané pendant le montage à la place de la sonde à fibre optique.Un autre avantage offert par l'agencement selon la présente invention réside dans le fait que la sonde à fibre optique à l'intérieur du tube, si elle est défectueuse ou lorsqu'elle devient défectueuse, peut être facilement extraite et remplacée par une nouvelle sonde à fibre optique que l'on introduit dans le tube. The above arrangement has the advantage that one can install the fiber optic probe substantially without any risk of damaging it and that one can mount the tube first without the fiber optic probe being there disposed then introduce the latter into the protective tube when the assembly of the structure requiring the probe and the mounting of the protective tube in this structure which finished and that the temperature probe will not be subjected to any other manipulation. For additional protection, it is possible to removably insert a temporary reinforcing metal wire during assembly in place of the fiber optic probe. Another advantage offered by the arrangement according to the present invention resides in the fact that the probe fiber optic inside the tube, if it is defective or when it becomes defective, can be easily extracted and replaced by a new fiber optic probe that is introduced into the tube.
On va maintenant décrire à titre d'exemple uniquement un mode de réalisation préféré de l'invention en se référant aux dessins annexés, sur lesquels
la figure 1 est une vue partielle d'un ensemble bobine circuit magnétique" d'un transformateur conjointement avec un moyen de surveillance de température;
la figure 2 est une vue en coupe par II-II de la figure 1; et
la figure 3 est une vue isométrique d'une partie de l'ensemble "bobines-circuit magnétique"dans lequel a été installé un capteur de température selon la présente invention.We will now describe by way of example only a preferred embodiment of the invention with reference to the accompanying drawings, in which
FIG. 1 is a partial view of a magnetic circuit coil assembly "of a transformer together with a temperature monitoring means;
Figure 2 is a sectional view through II-II of Figure 1; and
FIG. 3 is an isometric view of a part of the “magnetic coil-circuit” assembly in which a temperature sensor according to the present invention has been installed.
Bien que le capteur de température dont il est fait mention ici convienne pour être utilisé avec divers types d'appareils exigeant une surveillance des températures internes, on a décrit dans le présent exposé comme étant appliqué à un transformateur d'énergie et, plus spécifiquement, à un ensemble "bobines-circuit magnétique''de ce transformateur. Although the temperature sensor mentioned here is suitable for use with various types of apparatus requiring internal temperature monitoring, it has been described in the present description as being applied to an energy transformer and, more specifically, to a set "coils-magnetic circuit" of this transformer.
En se référant à la figure 1, on voit que l'ensemble "bobines-circuit magnétique" référencé 18 dans son ensemble comprend un noyau magnétique référencé 20 et une pluralité de bcbioes dont une seule a été représentée. Cette bobine, du fait qu'elle est du type plat, comprend une pluralité de spires conductrices 26 enroulées en spirale et elle représente toutes les bobines de l'ensemble empilées les unes sur les autres avec, disposés entreelles, des éléments d'espacement radiaux, comme par exemple les éléments d'espacement 24. Referring to FIG. 1, it can be seen that the assembly "magnetic coils-circuit" referenced 18 as a whole comprises a magnetic core referenced 20 and a plurality of bcbioes of which only one has been shown. This coil, because it is of the flat type, comprises a plurality of conductive turns 26 wound in a spiral and it represents all the coils of the assembly stacked one on the other with, arranged between them, radial spacers. , such as the spacers 24.
Comme on peut le voir sur la figure l,un ensemble "bobines-circuit magnétique" 18 est associé à un moyen de surveillance de température comprenant un dispositif 30 de traitement de signaux et un capteur de température 10 qui s'étend de l'intérieur de la bobine 22,vers l'extérieur de cette dernière et, à travers un joint a d'étanchéité 28 présent dans la paroi 16 de la cuve du transformateur, jusqu'au dispositif 30 de traitement de signaux qui est adapté pour traiter des signaux optiques reçus de la sonde 10,comme il est connu en soi. As can be seen in FIG. 1, a "magnetic circuit coil" assembly 18 is associated with a temperature monitoring means comprising a signal processing device 30 and a temperature sensor 10 which extends from the inside. from the coil 22, towards the outside of the latter and, through a seal 28 present in the wall 16 of the transformer tank, to the signal processing device 30 which is adapted to process signals optics received from probe 10, as it is known per se.
Comme on peut le voir plus clairement sur les figures 2 et 3, le capteur de température comprend un tube protecteur 12 et une sonde 14 a fibre optique introduite dans ce tube et s'y étandant jusque dans un espace que l'on forme entre deux des spires conductrices 26 en les écartant l'une de l'autre, comme on peut le voir en 26a sur la figure 3. Pour protéger le capteur de température contre les forces de compression agissant dans sa direction par l'intermédiaire des spires conductrices adjacentes, on place en sandwich entre ces dernières une paire d'éléments ou bandes 32 qui absorbent les efforts de compression et qui sont formés par une matière appropriée isolant de l'électricité ou diélectrique et sont disposés de part et d'autre du capteur de température. Les éléments 32 peuvent être utilisés pour maintenir en place l'extrémité intérieure du tube 12. As can be seen more clearly in FIGS. 2 and 3, the temperature sensor comprises a protective tube 12 and a fiber optic probe 14 introduced into this tube and extending therein into a space which is formed between two conductive turns 26 by moving them apart from one another, as can be seen at 26a in FIG. 3. To protect the temperature sensor against the compressive forces acting in its direction via the adjacent conductive turns , a pair of elements or bands 32 which absorb the compression forces and which are formed by an appropriate electrically insulating or dielectric material and are placed on either side of the temperature sensor, are sandwiched therebetween. . The elements 32 can be used to hold the inner end of the tube 12 in place.
Au moins la paroi intérieure du tube 12, de préférence la totalité de ce dernier, est formée par une matière qui est non seulement résistante à la température, mais qui possede également un faible coefficient de rottementt et le tube 12 est réalisé et agencé de manière que leon puisse y introduire librement la sonde 14 à fibre optique ei l'en enlever. Plus spécifiquement, le tube 12 a un diamètre intérieur suffisamment grand pour que l'on puisse y glisser facilement la sonde 14 a fibre optique et, du fait qu'il est souple, il est exempt de tout coude ayant un rayon inférieur à environ 25 mm.Pour limiter les déplacements de la sonde 14 a fibre optique vers l'intérieur dans le tube 12 et pour empêcher de ce fait son extrémité de détection devenir en contact direct avec les spires conductrices, une butée 36 (figure 3) comportant un évidement 38 en alignement axial avec l'extrémité de détection de la sonde à fibre optique est disposée a proximité de l'extrémité de celle-ci située le plus a l'intérieur. At least the inner wall of the tube 12, preferably the whole of the latter, is formed by a material which is not only resistant to temperature, but which also has a low coefficient of friction and the tube 12 is produced and arranged so that leon can freely introduce therein the fiber optic probe 14 and remove it. More specifically, the tube 12 has an internal diameter large enough that the fiber optic probe 14 can be easily slid into it and, because it is flexible, it is free of any bend having a radius less than about 25 To limit the movements of the fiber optic probe 14 inwards into the tube 12 and to thereby prevent its detection end from becoming in direct contact with the conductive turns, a stop 36 (FIG. 3) comprising a recess 38 in axial alignment with the detection end of the fiber optic probe is arranged near the innermost end of the latter.
L'extrémité de détection de la sonde 14 a fibre optique est pourvue d'une perle en ciment transparent revêtue d'un mélange de deux phosphores ou matières luminescentes A et B, dont chacun absorbe la lumière ultraviolette due à la chaleur engendrée dans les spires conductrices 26 pendant le fonctionnement du transformateur. Comme il est connu en soi, une certaine partie de l'énergie ainsi absorbOe-par la perle 40 est émise sous la forme d'une lumière rouge par la matière fluorescente A et sous la forme d'une lumière verte par la matière B. Au fur et a mesure que la température augmente de OOC à 1250C, la quantité de lumière verte émise par la matière B diminue jusqu'à son extinction à partir d'une quantité grosso modo égale à la quantité de lumière rouge émise par la matière A.Par contre, la quantité de lumière rouge reste constante de sorte qu'a 1250C, seule la lumière rouge est émise. La lumière verte et rouge émise par le mélange des deux matières fluorescentes est transmise a une cellule photo-électrique par l'intermédiaire de la sonde 14 à fibre optique et au dispositif 30 de traitement de signaux où l'on mesure le rapport entre la lumière verte et la lumière rouge en plaçant alternativement un filtre rouge et un filtre vert à l'extrémité de la fibre réceptrice (sonde) et en utilisant une cellule photo-électrique pour transformer l'intensité lumineuse en une tension. En appui à la façon de procéder ci-dessus, le dispositif 30 de traitement de signaux envoie initialement dans la sonde une lumière d'entrée ultraviolette. The detection end of the fiber optic probe 14 is provided with a transparent cement bead coated with a mixture of two phosphors or luminescent materials A and B, each of which absorbs ultraviolet light due to the heat generated in the turns. conductive 26 during operation of the transformer. As is known per se, a certain part of the energy thus absorbed by the pearl 40 is emitted in the form of red light by the fluorescent material A and in the form of green light by the material B. As the temperature increases from OOC to 1250C, the amount of green light emitted by matter B decreases until it goes out from an amount roughly equal to the amount of red light emitted by matter A However, the amount of red light remains constant so that at 1250C, only red light is emitted. The green and red light emitted by the mixture of the two fluorescent materials is transmitted to a photoelectric cell via the fiber optic probe 14 and to the signal processing device 30 where the ratio between the light is measured. green and red light by alternately placing a red filter and a green filter at the end of the receiving fiber (probe) and using a photoelectric cell to transform the light intensity into a voltage. In support of the above procedure, the signal processing device 30 initially sends an ultraviolet input light into the probe.
A titre d'exemple, la matière dont est constituée la paroi du tube 12 est une matière du groupe comprenant la résine éthylène-propylène fluorée et les polymères fluorocarbonés tels que le tétrafluoréthylène et lue polytétrafluoréthylène, et la sonde a fibre optique est une fibre optique à base de silice comportant sur son extrémité de détection une matière fluorescente. For example, the material from which the wall of the tube 12 is made is a material from the group comprising fluorinated ethylene-propylene resin and fluorocarbon polymers such as tetrafluoroethylene and polytetrafluoroethylene, and the fiber optic probe is an optical fiber. based on silica comprising on its detection end a fluorescent material.
I1 est bien entendu que la description qui précède n'a été donnée qu'à titre purement illustratif et non limitatif et que des variantes ou des modifications peuvent y être apportées dans le cadre de la présente invention. It is understood that the above description has been given purely by way of non-limiting illustration and that variants or modifications may be made thereto within the framework of the present invention.
Claims (8)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US30541281A | 1981-09-24 | 1981-09-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2513432A1 true FR2513432A1 (en) | 1983-03-25 |
| FR2513432B1 FR2513432B1 (en) | 1988-04-01 |
Family
ID=23180674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8215997A Expired FR2513432B1 (en) | 1981-09-24 | 1982-09-22 | ARRANGEMENT OF APPARATUS SUBJECT TO INTERNAL HEATING AND OF TEMPERATURE SENSOR |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5866831A (en) |
| KR (2) | KR900008327B1 (en) |
| FR (1) | FR2513432B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0342468A1 (en) * | 1988-05-20 | 1989-11-23 | Asea Brown Boveri Ag | Rail winding |
| DE10331486A1 (en) * | 2003-07-11 | 2005-01-27 | Alstom Technology Ltd | Integrated arrangement of optical fibers in a conductor |
| WO2007087277A2 (en) * | 2006-01-23 | 2007-08-02 | Luxtron Corporation | Electrical device measurement probes |
| CN110520947A (en) * | 2017-04-05 | 2019-11-29 | Abb瑞士股份有限公司 | Static Electro sensing device including winding and for monitoring the sensing system of temperature in winding |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6026416A (en) * | 1983-07-20 | 1985-02-09 | 関西電力株式会社 | Current limiter |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB568687A (en) * | 1942-10-17 | 1945-04-16 | British Thomson Houston Co Ltd | Improvements in and relating to thermal responsive devices for electrical apparatus |
| US2722679A (en) * | 1953-05-25 | 1955-11-01 | Gen Electric | Transformer overload indicator |
| FR1204840A (en) * | 1957-10-07 | 1960-01-28 | Licentia Gmbh | Device for measuring and controlling the temperatures of the windings of electrical devices, in particular transformers |
| US3606792A (en) * | 1969-02-18 | 1971-09-21 | Tsuyoshi Yoshimoto | Thermometer for refrigerator |
| US3849705A (en) * | 1973-07-11 | 1974-11-19 | Westinghouse Electric Corp | Fluid-cooled transformer having a temperature responsive indicating and controlling device |
| US3954508A (en) * | 1974-09-10 | 1976-05-04 | Gte Laboratories Incorporated | High temperature thermocouple probe |
| FR2374624A1 (en) * | 1976-12-16 | 1978-07-13 | Luxtron Corp | METHOD AND DEVICE FOR OPTICAL DETERMINATION OF TEMPERATURE USING PHOSPHORESCENT MATERIALS |
| DE2905588A1 (en) * | 1979-02-14 | 1980-08-28 | Bbc Brown Boveri & Cie | Temp. measuring device for electrical equipment esp. transformers - has two bodies moving w.r.t. one another with different expansion coefficients and mutual displacement measured by optical conductor |
-
1982
- 1982-09-22 FR FR8215997A patent/FR2513432B1/en not_active Expired
- 1982-09-24 KR KR1019820004313A patent/KR900008327B1/en not_active IP Right Cessation
- 1982-09-24 JP JP57165128A patent/JPS5866831A/en active Granted
-
1988
- 1988-05-31 KR KR1019880006467A patent/KR900008227B1/en not_active IP Right Cessation
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB568687A (en) * | 1942-10-17 | 1945-04-16 | British Thomson Houston Co Ltd | Improvements in and relating to thermal responsive devices for electrical apparatus |
| US2722679A (en) * | 1953-05-25 | 1955-11-01 | Gen Electric | Transformer overload indicator |
| FR1204840A (en) * | 1957-10-07 | 1960-01-28 | Licentia Gmbh | Device for measuring and controlling the temperatures of the windings of electrical devices, in particular transformers |
| US3606792A (en) * | 1969-02-18 | 1971-09-21 | Tsuyoshi Yoshimoto | Thermometer for refrigerator |
| US3849705A (en) * | 1973-07-11 | 1974-11-19 | Westinghouse Electric Corp | Fluid-cooled transformer having a temperature responsive indicating and controlling device |
| US3954508A (en) * | 1974-09-10 | 1976-05-04 | Gte Laboratories Incorporated | High temperature thermocouple probe |
| FR2374624A1 (en) * | 1976-12-16 | 1978-07-13 | Luxtron Corp | METHOD AND DEVICE FOR OPTICAL DETERMINATION OF TEMPERATURE USING PHOSPHORESCENT MATERIALS |
| DE2905588A1 (en) * | 1979-02-14 | 1980-08-28 | Bbc Brown Boveri & Cie | Temp. measuring device for electrical equipment esp. transformers - has two bodies moving w.r.t. one another with different expansion coefficients and mutual displacement measured by optical conductor |
Non-Patent Citations (2)
| Title |
|---|
| PATENTS ABSTRACTS OF JAPAN, vol. 5, no. 137(E-72)(809), 29 août 1981; * |
| PATENTS ABSTRACTS OF JAPAN, vol. 6, no. 211(E-137)(1089), 23 octobre 1982; * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0342468A1 (en) * | 1988-05-20 | 1989-11-23 | Asea Brown Boveri Ag | Rail winding |
| DE3817280A1 (en) * | 1988-05-20 | 1989-11-30 | Asea Brown Boveri | cOIL WINDING |
| DE10331486A1 (en) * | 2003-07-11 | 2005-01-27 | Alstom Technology Ltd | Integrated arrangement of optical fibers in a conductor |
| US7174075B2 (en) | 2003-07-11 | 2007-02-06 | Alstom Technology Ltd. | Integrated arrangement of optical fibers in a conductor |
| WO2007087277A2 (en) * | 2006-01-23 | 2007-08-02 | Luxtron Corporation | Electrical device measurement probes |
| WO2007087277A3 (en) * | 2006-01-23 | 2007-11-29 | Luxtron Corp | Electrical device measurement probes |
| CN110520947A (en) * | 2017-04-05 | 2019-11-29 | Abb瑞士股份有限公司 | Static Electro sensing device including winding and for monitoring the sensing system of temperature in winding |
| CN110520947B (en) * | 2017-04-05 | 2021-12-24 | 日立能源瑞士股份公司 | Static electric induction device comprising a winding and a sensor system for monitoring the temperature in the winding |
Also Published As
| Publication number | Publication date |
|---|---|
| KR890017736A (en) | 1989-12-18 |
| JPS5866831A (en) | 1983-04-21 |
| KR900008327B1 (en) | 1990-11-12 |
| FR2513432B1 (en) | 1988-04-01 |
| KR900008227B1 (en) | 1990-11-06 |
| KR840001712A (en) | 1984-05-16 |
| JPH0143253B2 (en) | 1989-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1135807A (en) | Method and apparatus for detecting hydrocarbon fuels | |
| CN103376160B (en) | Flame sensor | |
| EP0543732A1 (en) | Vacuum switch fitted with self-diagnosis means | |
| FR2627257A1 (en) | FLUORESCENT LAMP APPARATUS | |
| CA2076401A1 (en) | Apparatus for detecting the presence and the quality of a flame by detecting and analyzing electromagnetic radiation of different wavelengths | |
| EP0023163B1 (en) | Flexible probe for nondestructive testing of very long pipes | |
| EP0102262B1 (en) | Cryostatic device of small dimensions for photodetectors | |
| US5809198A (en) | Low reflection optical fiber termination device and method using same | |
| FR2513432A1 (en) | Fibre=optic internal temp. sensor for transformer windings - uses differential fluorescent emission of temp. sensitive phosphors stimulated by UV light | |
| FR2825152A1 (en) | MOUNTING OF ELECTRODES, IN PARTICULAR FOR INTEGRATED INTO AN EXHAUST GAS LINE | |
| EP0537074B1 (en) | Circuit breaker with composite sleeve provided with a monitoring device | |
| FR2590018A1 (en) | OPTICAL FIBER PRESSURE DETECTOR | |
| EP0836258A1 (en) | Monitoring device for a gas insulated cable | |
| FR2529373A1 (en) | INSULATED CABLE FOR THE TRANSPORT OF ELECTRICAL ENERGY, PARTICULARLY AT HIGH VOLTAGE | |
| WO2000049440A1 (en) | Improved optical connector, particularly for operating in high pressure environment | |
| GB2269452A (en) | Submersible photocell for ultraviolet light | |
| FR2494431A1 (en) | INDEPENDENT SENSOR APPARATUS CONNECTED BY TELESCOPIC TUBE | |
| EP2737300A1 (en) | Head for an evanescent-wave fibre-optic sensor | |
| TW200416385A (en) | Apparatus and process for measuring light intensities | |
| FR2668264A1 (en) | SENSOR FOR MEASURING THE CONCENTRATION OF OXYGEN IN A GAS. | |
| FR2488698A1 (en) | Assembly process for optical fibre cables - uses carrier with groove of width greater than dia. of cable and having depth greater than or equal to dia. | |
| EP0678887A1 (en) | Electrical apparatus with integrated pressure detection | |
| JPH0464039A (en) | Detecting device of dissolved gas in oil | |
| FR2791768A1 (en) | Bragg network extensometer for monitoring works of art, comprises optical fibre which has Bragg networks inscibed within and is covered by a reinforced plastic core also measuring equipment | |
| EP0571252B1 (en) | Sample holder module for tests of an optical component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |