EP3159901A1 - Stromschienenvorrichtung, eine solche vorrichtung umfassende stromschienenanordnung und entsprechende elektrische anordnung - Google Patents

Stromschienenvorrichtung, eine solche vorrichtung umfassende stromschienenanordnung und entsprechende elektrische anordnung Download PDF

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Publication number
EP3159901A1
EP3159901A1 EP15306684.0A EP15306684A EP3159901A1 EP 3159901 A1 EP3159901 A1 EP 3159901A1 EP 15306684 A EP15306684 A EP 15306684A EP 3159901 A1 EP3159901 A1 EP 3159901A1
Authority
EP
European Patent Office
Prior art keywords
bar
wall
housing
annular cavity
cover
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
Application number
EP15306684.0A
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English (en)
French (fr)
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EP3159901B1 (de
Inventor
Olivier Pioch
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Pioch
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Pioch
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Publication date
Application filed by Pioch filed Critical Pioch
Priority to EP15306684.0A priority Critical patent/EP3159901B1/de
Priority to ES15306684.0T priority patent/ES2676573T3/es
Publication of EP3159901A1 publication Critical patent/EP3159901A1/de
Application granted granted Critical
Publication of EP3159901B1 publication Critical patent/EP3159901B1/de
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    • 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
    • H01F27/02—Casings
    • H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/30—Sealing
    • H01B17/303—Sealing of leads to lead-through insulators

Definitions

  • the invention generally relates to bar-pass devices intended to be mounted through an orifice in a wall of an electrical equipment, for the passage of a conductive bar through the wall.
  • Such a bar-pass device is known for example from FR 2,776,419 .
  • the requirements as to the rigidity and mechanical strength of such bar-bar devices are increasing. These requirements can not be satisfied simply by choosing an appropriate material. Indeed, the bar-pass devices are subject to many other constraints, such as fire resistance or electrical and mechanical insulation capacity.
  • the invention aims to provide a bar-pass device for fulfilling all regulatory requirements, particularly in terms of mechanical rigidity and electrical insulation capacity.
  • the invention relates to a bar-pass device of the aforementioned type, characterized in that the cover comprises an outer wall defining an outer surface of the cover and an inner wall delimiting the housing, the inner and outer walls delimiting between them. an annular cavity surrounding the housing, the cover further comprising a plurality of ribs solidifying the inner and outer walls to one another and extending into the annular cavity, the bar-pass device having at least one passageway communicating the internal volume with the annular cavity such that the annular cavity is filled with dielectric fluid.
  • the invention relates to a bar-pass assembly, comprising a bar and a bar-pass device having the above features, the passageway comprising at least one pierced bore through the body and porting fluidic the receiving conduit with a gap between the body (14) and the inner wall, the bar comprising a corresponding bore placed in coincidence with the piercing of the body, a pin being engaged in the bore and in the corresponding bore.
  • the electrical equipment 3 is typically an electrical transformer transforming a high voltage current into a medium voltage current or a medium voltage current into a low voltage current.
  • the electrical equipment is an electrical generator that converts, for example, a low-voltage current into a medium-voltage or a medium-voltage current into a high-voltage current.
  • Such equipment is for example in a wind turbine.
  • the dielectric fluid is typically a dielectric liquid or a dielectric gas.
  • the dielectric gas is, for example, sulfur hexafluoride.
  • the dielectric liquid filling the internal volume 5 is for example a mineral or organic oil, or any other suitable liquid.
  • the orifice O opens into the internal volume 5.
  • the bar-pass device 10 is provided to electrically isolate the conductive bar 12 from the wall P, while closing the orifice O, so that the dielectric fluid can not escape from the internal volume and discharge to the outside of the electrical equipment.
  • the bar-pass device 10 comprises a body 14 and a cover 16.
  • the lid 16 may have at its top one or more flanges stacked along a portion of the length of the conductive bar 12.
  • the body 14 and the cover 16 typically are made essentially of a thermoplastic material, for example a polyamide or a polyphthalamide.
  • the outer or exposed surface of the cover 16 is for example completely covered with a protective and insulating coating.
  • the conductive bar 12 is rectilinear and has a longitudinally elongate shape. It has an oblong cross section, for example rectangular with its small rounded sides. It is made of nonferrous metal and has at each longitudinal end holes 18 for the connection of electric cables.
  • the bar 12 is of circular section, or has a section of any other adapted form.
  • the body 14 is traversed right through by a longitudinal conduit 20 for receiving the conductive bar 12.
  • the body 14 therefore typically has a tubular shape.
  • the lid 16 has a bell shape. It delimits internally a housing 22 for receiving the bulk of the body 14.
  • the cover 16 further comprises a passage 24 of the conductive bar 12, longitudinally extending the conduit 20. This light 24 has a section substantially equal to the section of the bar 12.
  • the body 14 and the lid 16 are adapted to be arranged, as shown in FIG. figure 1 , on an outer side of the wall P.
  • the body 14 has essentially the shape of a sleeve whose inner conduit 20 is of constant section.
  • the internal section of the duct 20 is slightly greater than the section of the conductive bar 12.
  • the body 14 has externally in its median part a flange 28 bearing on the outer surface E of the wall P. This flange axially separates the body into a first section 30 engaged in the orifice O and a second section 34 received in the housing 22 of the lid 16.
  • the first section 30 protrudes inside the internal volume 5.
  • the first section 30 has a tubular shape. It delimits the passage 20.
  • This section 30 is externally stiffened by longitudinal ribs 32 regularly distributed on its periphery.
  • the ribs 32 are of progressively decreasing height from the flange 28 to the free end of the first section 30, in order to ensure a guiding of the body 14 in the orifice O during its introduction.
  • the height of the ribs 32 is smaller than the width of the collar 28, so that a peripheral support surface 35 is formed between the ribs 32 and the outer contour of the collar 28.
  • the body 14 is defined by the second tubular section 34, of oblong section, delimiting the duct 20.
  • a bore 40 is formed on a flat face of the second section 34.
  • This bore 40 opens inside the conduit 20. It is adapted to receive the end of a pin 41 ( figure 1 ), for the axial retention of the bar 12. The other end of the pin 41 is received in a corresponding bore 42 of the bar, placed in coincidence with the piercing 40.
  • the pin 41 is typically made of plastic.
  • the cover 16 comprises a tubular wall 50 surrounding the second section 34 and a base 52 having a lower face 53 intended to be pressed against the outer surface E of the wall P.
  • the base 52 is for example of substantially rectangular shape with rounded corners. In the corners are provided holes 54 for receiving bolts for fixing to the wall P.
  • the lid 16 Due to its intrinsic rigidity, the lid 16 is free of external stiffening ribs.
  • the housing 22 of the lid has for example a substantially constant inner section from the base 52 to the end of the housing 22 opposite the base 52. This inner section is very slightly greater than the outer section of the second tubular section 34.
  • the housing 22 is opening at the lower face 53.
  • the base 52 has around the housing 22 a first countersink 64 intended to receive the flange 28.
  • This first countersink 64 is extended by a second countersink 66, surrounding the first countersink 64. This is intended to receive both the flange 28 and a seal 68 disposed around it.
  • This seal 68 is adapted to bear simultaneously on the cover 16 and the outer surface of the wall P. It is separated from the body 14 by a gap 69.
  • the tubular wall 50 has a longitudinal length greater than the longitudinal length of the second section 34. It ends at the level of the lumen 24, which is separated from the housing 22 by a shoulder 70.
  • An annular seal 72 is disposed between the shoulder 70 and the longitudinal end of the second tubular section 34. This seal 72 is adapted to apply simultaneously to the body 14, the cover 16 and the conductive bar 12 when the it is maintained in the bar-pass device, as shown in FIG. figure 1 . In variant not shown, the single seal 72 is replaced by several stacked joints.
  • the conductive bar 12 is introduced through the passage 20. It is immobilized by placing the pin 41 in the aligned holes 40 and 42. The body 14 is then inserted. through the opening O.
  • the seal 72 is then placed around the bar 12, bearing against the longitudinal end of the second tubular section 34. Finally, the seal 68 is placed around the flange 28, in contact with the outer surface E of the wall P.
  • the cover 16 is then attached around the bar 12 and the outer part of the body 14.
  • the annular seal 72 is gradually pushed into the housing 22 until shoulder 70.
  • Such a retaining means of the bar 12 makes it possible to replace the seals 68 and 72 simply by disassembling the lid 16, without it being necessary to remove the axial retaining pin from the conductive bar.
  • a busbar assembly such as that described here makes it possible, for example, to pass a current of intensity greater than 630 A for a low voltage of 380 V or a medium voltage of about 3600 V.
  • the cover 16 has an outer wall 80 defining the outer surface of the cover, and an inner wall 82 defining the housing 22.
  • the inner and outer walls 80, 82 define between them an annular cavity 84 surrounding the housing 22.
  • the cover 16 has a plurality of ribs 86 solidarisant the inner and outer walls 82, 80 to one another.
  • the ribs 86 extend into the annular cavity 84. They are typically uniformly distributed around the housing 22.
  • the annular cavity 84 extends over the entire periphery of the housing 22.
  • the inner and outer walls 82, 80 extend over the entire periphery of the housing 22.
  • the annular cavity 84 is open at the lower face 53 of the base 52.
  • the annular cavity 84 is closed at the upper end 87 of the cover, that is to say the opposite of the lower face 53 in the longitudinal direction. She is therefore one-eyed.
  • the spacing between the outer and inner walls 80, 82 that is to say the radial width of the annular cavity 84, decreases from the lower surface 53 longitudinally to the upper end 87 of the lid.
  • the outer and inner walls 80, 82 meet and merge, thus constituting the bottom 88 of the annular cavity 84.
  • the lumen 24 is formed through the bottom 88.
  • the shoulder 70 is formed in the inner wall 82.
  • the annular cavity 84 extends longitudinally over the entire length of the housing 22. It thus extends over almost the entire longitudinal length of the cover 16.
  • the ribs 86 extend over the entire longitudinal length of the annular cavity 84, from the bottom surface 53 to the bottom 88.
  • the ribs 86 are longitudinal and substantially parallel to each other. They divide the annular cavity 84 into a plurality of cells 90, fully separated from each other. Each cell 90 opens at the bottom surface 53, and is closed at the bottom 88.
  • the cells 90 are regularly distributed around the housing 22.
  • the annular cavity 84 has, between the inner walls 82 and outer 80, a sufficient thickness to provide electrical insulation. Typically, it has a thickness greater than 3 mm. This thickness is greater than 3 mm in all points of the annular cavity. As indicated above, the thickness is minimum at the bottom of the annular cavity 84. Typically, the thickness of the annular cavity at the bottom is between 3 and 6 mm, preferably between 4 and 5 mm. At the inlet of the annular cavity, that is to say at the level of the lower surface 53, the thickness is typically between 4 and 8 mm, preferably between 5 and 7 mm. The shape of the walls 80 and 82 is chosen accordingly.
  • the ribs 86 each have a thickness greater than or equal to 2 mm, so as to ensure good mechanical strength.
  • the bar-pass device In order to allow the annular cavity 84 to be filled by the dielectric fluid coming from the internal volume 5, the bar-pass device has at least one passage path 92, 94 placing the internal volume 5 in communication with the annular cavity 84.
  • the bar-pass device comprises a first path 92 shown by the arrows F1 on the figure 1 .
  • This passageway comprises the gap 69 between the seal 68 and the collar 28. This passageway extends beyond the gap 69, between the flange 68 and the first counterbore 64, to the end. open of the annular cavity 84, which opens precisely at the first counterbore 64.
  • the bar-pass device further comprises a second passageway 94 materialized on the figure 1 by the arrows F2.
  • This second passage 94 comprises the orifice 40 formed through the body 14.
  • this passageway comprises the gap 96 between the bar 12 and the receiving duct 20 formed inside the body.
  • the dielectric fluid leaves the gap 96 through the bore 40, which opens into the gap 98 between the body 14 and the inner wall 82. It follows the gap 98 longitudinally towards the wall P, up to the level of the collar 28 The dielectric fluid then passes between the flange 28 and the first counterbore 64, and enters the annular cavity 84.
  • the bar-pass device comprises either only the first pathway, or only the second pathway, or both paths of passage. Other paths of passage can be envisaged.
  • the passageway allows the annular cavity to be filled by the dielectric fluid from the internal volume of the electrical equipment, so that the bar-pass device has excellent electrical insulation properties. If the annular cavity were filled with air, not with the dielectric fluid, there would be a risk of significant malfunction.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP15306684.0A 2015-10-20 2015-10-20 Stromschienenvorrichtung, eine solche vorrichtung umfassende stromschienenanordnung und entsprechende elektrische anordnung Active EP3159901B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15306684.0A EP3159901B1 (de) 2015-10-20 2015-10-20 Stromschienenvorrichtung, eine solche vorrichtung umfassende stromschienenanordnung und entsprechende elektrische anordnung
ES15306684.0T ES2676573T3 (es) 2015-10-20 2015-10-20 Dispositivo pasabarra, conjunto pasabarra que comprende tal dispositivo, conjunto eléctrico correspondiente

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15306684.0A EP3159901B1 (de) 2015-10-20 2015-10-20 Stromschienenvorrichtung, eine solche vorrichtung umfassende stromschienenanordnung und entsprechende elektrische anordnung

Publications (2)

Publication Number Publication Date
EP3159901A1 true EP3159901A1 (de) 2017-04-26
EP3159901B1 EP3159901B1 (de) 2018-04-11

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EP15306684.0A Active EP3159901B1 (de) 2015-10-20 2015-10-20 Stromschienenvorrichtung, eine solche vorrichtung umfassende stromschienenanordnung und entsprechende elektrische anordnung

Country Status (2)

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EP (1) EP3159901B1 (de)
ES (1) ES2676573T3 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3731247A1 (de) * 2019-04-24 2020-10-28 Preis & Co Ges.m.b.H. Bausatz für eine durchführungsanordnung zur elektrischen anbindung einer transformatoranlage
EP3859923A1 (de) * 2020-01-28 2021-08-04 Hauff-Technik GmbH & Co. KG Erdleiterdurchführung
EP4145470A1 (de) * 2021-09-02 2023-03-08 Hwaseung Corporation Co., Ltd. Isolierbuchse
EP4372767A1 (de) * 2022-11-16 2024-05-22 Preis GmbH Bausatz für eine durchführungsanordnung zur elektrischen anbindung einer transformatoranlage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703136A (en) * 1984-04-03 1987-10-27 Werner Hauff Sealing body for feedthrough for at least one conducting member through a wall opening
FR2633439A1 (fr) * 1988-06-22 1989-12-29 Alsthom Passe-barre pour transformateur electrique
FR2776419A1 (fr) 1998-03-18 1999-09-24 Pioch Sa Dispositif passe-barre et traversee electrique de paroi
WO2003036660A1 (es) * 2001-10-26 2003-05-01 Grupo Ormazabal, S.A. Pasatapas de barra, unipolar
EP1860672A1 (de) * 2006-05-23 2007-11-28 Pioch Stangenbuchsenanordnung, die durch eine Öffnung einer Wand eines Stromwandlers eingebaut werden soll

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703136A (en) * 1984-04-03 1987-10-27 Werner Hauff Sealing body for feedthrough for at least one conducting member through a wall opening
FR2633439A1 (fr) * 1988-06-22 1989-12-29 Alsthom Passe-barre pour transformateur electrique
FR2776419A1 (fr) 1998-03-18 1999-09-24 Pioch Sa Dispositif passe-barre et traversee electrique de paroi
WO2003036660A1 (es) * 2001-10-26 2003-05-01 Grupo Ormazabal, S.A. Pasatapas de barra, unipolar
EP1860672A1 (de) * 2006-05-23 2007-11-28 Pioch Stangenbuchsenanordnung, die durch eine Öffnung einer Wand eines Stromwandlers eingebaut werden soll

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3731247A1 (de) * 2019-04-24 2020-10-28 Preis & Co Ges.m.b.H. Bausatz für eine durchführungsanordnung zur elektrischen anbindung einer transformatoranlage
EP3859923A1 (de) * 2020-01-28 2021-08-04 Hauff-Technik GmbH & Co. KG Erdleiterdurchführung
EP4145470A1 (de) * 2021-09-02 2023-03-08 Hwaseung Corporation Co., Ltd. Isolierbuchse
EP4372767A1 (de) * 2022-11-16 2024-05-22 Preis GmbH Bausatz für eine durchführungsanordnung zur elektrischen anbindung einer transformatoranlage

Also Published As

Publication number Publication date
EP3159901B1 (de) 2018-04-11
ES2676573T3 (es) 2018-07-23

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