WO2011138329A1 - Appareillage electrique a haute ou moyenne tension comprenant une partie active par induction immergee, a bruit reduit - Google Patents
Appareillage electrique a haute ou moyenne tension comprenant une partie active par induction immergee, a bruit reduit Download PDFInfo
- Publication number
- WO2011138329A1 WO2011138329A1 PCT/EP2011/057062 EP2011057062W WO2011138329A1 WO 2011138329 A1 WO2011138329 A1 WO 2011138329A1 EP 2011057062 W EP2011057062 W EP 2011057062W WO 2011138329 A1 WO2011138329 A1 WO 2011138329A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- waves
- structural elements
- propagated
- electrical apparatus
- tank
- Prior art date
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
- H01F27/33—Arrangements for noise damping
Definitions
- the invention relates to a high or medium voltage electrical apparatus, such as a transformer or inductance coil, comprising an induction active part immersed in a dielectric fluid.
- the invention relates to reducing the emission noise of such electrical equipment.
- the apparatus particularly targeted by the invention are transformers, particularly those of power and distribution in an electrical distribution network, and the inductance coils.
- an object of the invention is to propose an effective reduction solution from the noise of a high or medium voltage electrical equipment due to the acoustic waves emitted by the active part by induction and propagated by the medium. dielectric fluid surrounding said active portion.
- a particular object of the invention is to propose a solution compatible with the technological and economic requirements of the field of transmission and distribution of electricity at high or medium voltage.
- the subject of the invention is a high or medium voltage electrical apparatus comprising an active part by induction, a vessel surrounding the active part and filled with a dielectric fluid, such as oil, and means for acoustic reduction of the waves coming from the active part and propagated in the dielectric fluid.
- a dielectric fluid such as oil
- the acoustic reduction means is adapted to divide the propagated waves into two opposing phase wave groups in interference with one another.
- the passive acoustic reduction means are hollow structural elements, which are impervious to the dielectric fluid, arranged at regular intervals and forming a barrier at a distance from the walls of the tank, the space between two adjacent structural elements being adapted to let some of the waves from the active part and propagated in the fluid without introducing phase shift thus constituting one of the two groups of waves, each structural element being adapted to be excited by one of its so-called internal faces by the other part of the waves coming from the part active and propagated in the fluid and reissue by its so-called external face the other group of waves in phase opposition with the first group of waves and thus create the interference between the two groups of waves, in a zone to distance from the walls of the tank so as to at least limit their amplitude before contact with the latter.
- active part by induction means electromagnetic induction elements, such as an electromagnetic circuit and windings in HV or MV transformers or in inductance coils.
- the passive acoustic reduction means according to the invention are advantageous because of their simplicity of implementation and a reduced cost of implementation.
- an acoustic barrier is formed and an interferential field is created behind it, that is to say in the zone situated between the acoustic barrier and the walls of the tank, limiting the acoustic effect resulting from the mechanical excitation of the walls of the tank containing the dielectric fluid by the acoustic waves.
- the incident sound pressure waves generated by the components of the part active by induction and reaching the acoustic barrier formed by the structural elements according to the invention are divided into two groups of waves including:
- the minimization of the resulting effect on the walls of the tank is then obtained by a compensation mechanism between two virtual sources, the first (Q +) linked to the incident wave and crossing the barrier, and the second (Q-) linked to the incident wave exciting the structural elements of the barrier and reemitted with an opposite phase by these structural elements.
- the compensation mechanism according to the invention obtained by the structural elements constituting the barrier is represented in FIG.
- the invention essentially consists in producing, within an electrical equipment tank filled with dielectric fluid, a noise attenuator by incident wave division and phase opposition between these divided waves.
- the noise attenuator according to the invention is passive, that is to say that it does not require the use of any active electrical and / or mechanical means to achieve the field of interference in opposition to phase.
- the structural elements comprise metal tubes with a constant inner section over their height, each tube being closed at each of its ends by a dielectric fluid-tight device.
- the structural elements are preferably mounted in the vessel via vibratory decoupling means. This results in a significant reduction of low frequency noise, related to the transfer of acoustic energy by the dielectric fluid.
- the fixing through the vibratory decoupling means is made to a frame rigid arranged in the tank.
- the surface of the structural elements is at least equal to two thirds of the surface of the barrier.
- the invention also relates to an electrical apparatus described above which constitutes a transformer or an inductance coil.
- the pitch of the acoustic barrier that is to say the distance between two adjacent structural elements, which in a way fixes the distribution between the respective contributions of the incident wave and the wave re-emitted behind the barrier.
- the pitch must be such that it allows the structural elements to represent a coverage of at least 2/3 of the total surface of the barrier,
- FIG. 1 is a partial perspective view of a transformer according to the invention
- FIG. 2 is a partial perspective view of an acoustic barrier according to an embodiment of the invention arranged inside the vessel of the transformer according to FIG. 1;
- FIG. 3 schematically shows the operation of an acoustic barrier according to the invention
- FIGS. 4 and 5 show a cross-sectional perspective view of a structural element of the acoustic barrier respectively according to a first and second variant embodiment
- FIGS. 6A and 6B show in perspective the mounting of a structural element of the acoustic barrier respectively according to a first and second variant embodiment
- FIG. 7 is a partial perspective view of an acoustic barrier according to another embodiment of the invention.
- FIG. 8 is a curve representative of the effectiveness of an acoustic barrier according to the invention.
- FIG. 1 shows a transformer 1 in which an acoustic barrier 2 according to the invention is arranged at a distance from the vertical walls 30A and from the top 30B of the vessel 3.
- the transformer 1 comprises an active part by induction 4 immersed in dielectric oil (not shown) filling the tank 3.
- the acoustic barrier 2 is of the passive type and consists of dielectric oil-tight hollow metal tubes 20 arranged in regular spacing between them. More exactly, a regular step separates two tubes 20 spaced apart from the same wall, a distance p2 separates two tubes 20 adjacent to the wedge between two vertical walls 30 and a distance p3 separates two adjacent tubes 20 between one of the vertical walls 30A. and a top wall 30B.
- the hollow tubes 20 shown in FIG. 2 are of substantially rectangular cross-section. This substantially rectangular shape allows a good relaxation of the hollow tubes 20 and thus a good attenuation of low frequency noise.
- the regular pitches thus define a space between two tubes 20 adapted to pass part of the pressure waves coming from the active part by induction 4 and propagated in the oil without introducing a phase shift thus constituting a group of wave.
- Each hollow tube 20 is adapted to be excited by its inner face 200, that is to say the one opposite the active part 4, by the other part of the waves coming from the active part and propagated in oil and reissue another group of waves in phase opposition.
- an interference field is created between these two groups of waves.
- FIG. 3 illustrates the creation of an interference field by the phase inversion between the wave portion 01 coming from the incident waves and passing through the barrier 2 and the part 02 reemitted by each of the hollow tubes 20: it occurs thus a compensation between the two sources Q +, Q- of created virtual waves.
- the dimensions of the hollow tubes 20 and the value of the regular spacing pitches are preferably adapted so that the barrier 2 has a total coverage of the periphery of the active part by induction 4 at the distance D from the vertical walls 30A and from the top 30B .
- the hollow tubes 20 according to the invention which are impervious to dielectric oil, may be filled either with a light fluid (gas) or with a flexible material (foam or elastomer).
- FIGS. 4 and 5 Two variants of hollow tubes with a rectangular section are shown in FIGS. 4 and 5: the rectangular hollow tube 20 of FIG. 4 is a welded folded tube whose sealing is achieved by two welded plates 21, 22 and which is filled with a gas,
- the hollow tube 20 of rectangular section of Figure 5 are extruded tubes whose sealing is achieved by two devices 21, 22 forming fastening flanges for all the tubes and which are filled with a gas.
- FIGS. 6A and 6B Two alternative embodiments of assembly by means of vibratory decoupling means are shown in FIGS. 6A and 6B:
- the hollow tubes 20 of FIG. 6A are fixed by means of studs 50 to a rigid frame
- FIG. 7 Another embodiment of the acoustic barrier 2 according to the invention is shown in FIG. 7: the hollow tubes 20 are here cylindrical and fixed on rails 7 by means of hooks 52 made of compressible material making it possible to perform the vibratory decoupling between tubes 20 and rails 7.
- the curve represents the acoustic attenuation of the barrier 2 in dB according to the invention as a function of the noise frequencies emitted by the active part by induction 4: it is clearly seen that the acoustic barrier 2 allows an effective attenuation of the noise beyond a frequency of 100 Hz.
- An acoustic barrier partially surrounding the inside of a HV or MV equipment tank can be envisaged, in particular in the case where the active part by induction emits waves in a preferred direction.
- an acoustic barrier according to the invention only facing the side faces of the electrical equipment tank.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11716599.3A EP2567388B1 (fr) | 2010-05-05 | 2011-05-03 | Appareillage electrique a haute ou moyenne tension comprenant une partie active par induction immergee, a bruit reduit |
BR112012027557A BR112012027557A2 (pt) | 2010-05-05 | 2011-05-03 | aparelhagem elétrica alta ou média tensão |
CA2797788A CA2797788A1 (fr) | 2010-05-05 | 2011-05-03 | Appareillage electrique a haute ou moyenne tension comprenant une partie active par induction immergee, a bruit reduit |
US13/695,715 US8841982B2 (en) | 2010-05-05 | 2011-05-03 | Reduced noise high- or medium-voltage equipment including an immersed induction-activated portion |
CN201180022437XA CN102884598A (zh) | 2010-05-05 | 2011-05-03 | 包括浸没式感应启动部分的降噪高压或中压设备 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1053509A FR2959859B1 (fr) | 2010-05-05 | 2010-05-05 | Appareillage electrique a haute ou moyenne tension comprenant une partie active par induction immergee, a bruit reduit |
FR1053509 | 2010-05-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011138329A1 true WO2011138329A1 (fr) | 2011-11-10 |
Family
ID=43218506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/057062 WO2011138329A1 (fr) | 2010-05-05 | 2011-05-03 | Appareillage electrique a haute ou moyenne tension comprenant une partie active par induction immergee, a bruit reduit |
Country Status (7)
Country | Link |
---|---|
US (1) | US8841982B2 (fr) |
EP (1) | EP2567388B1 (fr) |
CN (1) | CN102884598A (fr) |
BR (1) | BR112012027557A2 (fr) |
CA (1) | CA2797788A1 (fr) |
FR (1) | FR2959859B1 (fr) |
WO (1) | WO2011138329A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9466414B2 (en) * | 2015-02-24 | 2016-10-11 | Cooper Technologies Company | Vibration stabilizer for enclosure cooling fins |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1846887A (en) * | 1930-05-24 | 1932-02-23 | Gen Electric | Electrical induction apparatus |
GB925522A (en) | 1958-12-17 | 1963-05-08 | Mc Graw Edison Co | Noise reducing means for transformers |
US3305813A (en) | 1961-11-21 | 1967-02-21 | Mc Graw Edison Co | Cooling and noise reducing arrangement for stationary induction apparatus |
US4840251A (en) * | 1987-09-30 | 1989-06-20 | Bridgestone Corporation | Noise reducing apparatus |
US5138588A (en) | 1988-08-19 | 1992-08-11 | Brunswick Corporation | Underwater sound attenuator |
DE4228101A1 (de) * | 1992-08-27 | 1994-03-03 | Abb Patent Gmbh | Minderung der Schallemission von Transformatoren |
FR2730335A1 (fr) | 1995-02-02 | 1996-08-09 | France Etat | Dispositif anti bruit notamment pour accoustique sous-marine |
US6661322B1 (en) | 1999-06-28 | 2003-12-09 | Abb T & D Technology Ltd. | Sound-insulating device for an induction machine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58143510A (ja) * | 1982-02-20 | 1983-08-26 | Hitachi Ltd | 静止誘導電器 |
JPS59172218A (ja) | 1983-03-18 | 1984-09-28 | Toshiba Corp | 静止誘導電器タンク |
JPS616812A (ja) | 1984-06-21 | 1986-01-13 | Toshiba Corp | 静止誘導電器タンク |
US5121811A (en) * | 1989-01-27 | 1992-06-16 | Bridgestone Corporation | Noise reducing device for printer |
-
2010
- 2010-05-05 FR FR1053509A patent/FR2959859B1/fr active Active
-
2011
- 2011-05-03 CA CA2797788A patent/CA2797788A1/fr not_active Abandoned
- 2011-05-03 CN CN201180022437XA patent/CN102884598A/zh active Pending
- 2011-05-03 US US13/695,715 patent/US8841982B2/en not_active Expired - Fee Related
- 2011-05-03 EP EP11716599.3A patent/EP2567388B1/fr active Active
- 2011-05-03 WO PCT/EP2011/057062 patent/WO2011138329A1/fr active Application Filing
- 2011-05-03 BR BR112012027557A patent/BR112012027557A2/pt not_active IP Right Cessation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1846887A (en) * | 1930-05-24 | 1932-02-23 | Gen Electric | Electrical induction apparatus |
GB925522A (en) | 1958-12-17 | 1963-05-08 | Mc Graw Edison Co | Noise reducing means for transformers |
US3102246A (en) | 1958-12-17 | 1963-08-27 | Mc Graw Edison Co | Noise reducing means for transformer |
US3305813A (en) | 1961-11-21 | 1967-02-21 | Mc Graw Edison Co | Cooling and noise reducing arrangement for stationary induction apparatus |
US4840251A (en) * | 1987-09-30 | 1989-06-20 | Bridgestone Corporation | Noise reducing apparatus |
US5138588A (en) | 1988-08-19 | 1992-08-11 | Brunswick Corporation | Underwater sound attenuator |
DE4228101A1 (de) * | 1992-08-27 | 1994-03-03 | Abb Patent Gmbh | Minderung der Schallemission von Transformatoren |
FR2730335A1 (fr) | 1995-02-02 | 1996-08-09 | France Etat | Dispositif anti bruit notamment pour accoustique sous-marine |
US6661322B1 (en) | 1999-06-28 | 2003-12-09 | Abb T & D Technology Ltd. | Sound-insulating device for an induction machine |
Also Published As
Publication number | Publication date |
---|---|
EP2567388B1 (fr) | 2017-07-12 |
CN102884598A (zh) | 2013-01-16 |
FR2959859B1 (fr) | 2013-06-28 |
US8841982B2 (en) | 2014-09-23 |
US20130043965A1 (en) | 2013-02-21 |
BR112012027557A2 (pt) | 2016-08-02 |
FR2959859A1 (fr) | 2011-11-11 |
CA2797788A1 (fr) | 2011-11-10 |
EP2567388A1 (fr) | 2013-03-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2670536B1 (fr) | Transducteur électro-acoustique basse fréquence et procédé de génération d'ondes acoustiques | |
EP3038101B1 (fr) | Paroi acoustique à échangeur thermique intégré | |
EP0641262B1 (fr) | Antenne acoustique sous-marine a capteur surfacique | |
EP3230770B1 (fr) | Hydrophone piezoelectrique a perforations, antenne comprenant une pluralite d'hydrophones et procede de realisation de l'hydrophone | |
FR3042093A1 (fr) | Module de stockage d'energie electrique et son procede de fabrication | |
EP2567388B1 (fr) | Appareillage electrique a haute ou moyenne tension comprenant une partie active par induction immergee, a bruit reduit | |
FR3044812A1 (fr) | Metamateriau acoustique absorbant | |
EP3198586B1 (fr) | Antenne omnidirectionnelle | |
EP0817164B1 (fr) | Structures d'absorption de bruit et parois constituées de ces structures | |
EP3411874A1 (fr) | Resonateur acoustique de faible epaisseur de type mille-feuille perfore pour l'absorption ou le rayonnement acoustique tres basses frequences | |
EP0728535B1 (fr) | Procédé et dispositif pour diminuer la fréquence de résonance des cavités des transducteurs immergeables | |
EP2567387A1 (fr) | Appareillage electrique a pluralite de dispositifs de reduction acoustique des ondes provenant de la partie active par induction a la tenue au vide garantie | |
EP3718759B1 (fr) | Assemblage constituant un materiau acoustiquement absorbant | |
CA2109465C (fr) | Dispositif d'etancheite de moteurs electro-acoustiques | |
CA2109466C (fr) | Procede et transducteurs pour emettre des ondes acoustiques basse frequence dans un liquide en immersion illimitee | |
FR2898647A1 (fr) | Structure dissipative pour dispositif antivibratoire, un tel dispositif de type support hydraulique l'incorporant et utilisations de ce dispositif. | |
FR2720585A1 (fr) | Transducteur électro acoustique antenne sonar ouverts. | |
EP0728534A1 (fr) | Procédé et transducteurs immergés dans un fluide pour l'émission d'ondes acoustiques à basse fréquence avec des pavillons allégés | |
FR2968116A1 (fr) | Panneau a structure cellulaire adapte aux pressions acoustiques | |
FR2720588A1 (fr) | Perfectionnement acoustique aux antennes sonar. | |
FR3121285A1 (fr) | Matériau de calage d’éléments électrochimiques dans une batterie | |
EP0684085A1 (fr) | Antenne sonar ouverte comportant des transducteurs électro-acoustiques | |
FR2720587A1 (fr) | Perfectionnement aux antennes sonar munies d'une contre masse commune. | |
BE453092A (fr) | ||
FR3035839A1 (fr) | Paroi de vehicule automobile comportant deux peaux munies d'excroissances et prenant en sandwich une ame |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201180022437.X Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11716599 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2797788 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2490/MUMNP/2012 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13695715 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REEP | Request for entry into the european phase |
Ref document number: 2011716599 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011716599 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112012027557 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 112012027557 Country of ref document: BR Kind code of ref document: A2 Effective date: 20121026 |