EP3159901B1 - 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
EP3159901B1
EP3159901B1 EP15306684.0A EP15306684A EP3159901B1 EP 3159901 B1 EP3159901 B1 EP 3159901B1 EP 15306684 A EP15306684 A EP 15306684A EP 3159901 B1 EP3159901 B1 EP 3159901B1
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Prior art keywords
wall
bar
housing
annular cavity
cover
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EP15306684.0A
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English (en)
French (fr)
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EP3159901A1 (de
Inventor
Olivier Pioch
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Pioch
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Pioch
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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
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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.
  • a bar-pass device is also described in the document WO 03/036660 A1 .
  • 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-type device of the aforementioned type, the cover having an outer wall defining an outer surface of the lid and an inner wall defining the housing, characterized in that inner and outer walls define between them an annular cavity surrounding the housing, the lid further comprising a plurality of ribs solidarisant the inner and outer walls to one another and extending into the annular cavity, the bar-pass device having at least one pathway communicating the internal volume with the annular cavity so 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)

Claims (10)

  1. Stabdurchführungsvorrichtung, die dazu bestimmt ist, durch eine in einer Wand (P) eines elektrischen Geräts (3) ausgebildete Öffnung (O) verlaufend montiert zu werden, um einen leitenden Stab (12) durch die Wand (P) zu führen, wobei die Wand (P) ein Innenvolumen (5) begrenzt, das mit einem dielektrischen Fluid gefüllt ist, wobei die Stabdurchführungsvorrichtung (10) Folgendes umfasst:
    - einen Körper (14), der von einem Ende zum anderen von einer Leitung (20) für die Aufnahme des Stabs (12) durchquert wird;
    - einen Deckel (16), der einen Aufnahmeraum (22) aufweist, in dem der Körper (14) in Eingriff ist;
    wobei der Deckel (16) eine äußere Wand (80), die eine äußere Oberfläche des Deckels (16) definiert, und eine innere Wand (82), die den Aufnahmeraum (22) begrenzt, aufweist, dadurch gekennzeichnet, dass die innere Wand und die äußere Wand (82, 80) zwischen sich einen ringförmigen Hohlraum (84) begrenzen, der den Aufnahmeraum (22) umgibt, wobei der Deckel (16) außerdem mehrere Stege (86) aufweist, die die innere Wand und die äußere Wand (82, 80) aneinander befestigen und sich in dem ringförmigen Hohlraum (84) erstrecken, wobei die Stabdurchführungsvorrichtung (10) wenigstens einen Durchführungsweg (92, 94) aufweist, der eine Kommunikation zwischen dem Innenvolumen (5) und dem ringförmigen Hohlraum (84) herstellt, derart, dass der ringförmige Raum (84) mit dem dielektrischen Fluid gefüllt ist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Stege (86) um den Aufnahmeraum (22) regelmäßig verteilt sind.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Durchführungsweg (94) wenigstens eine Durchlochung (40) umfasst, die den Körper (14) durchquert und eine Fluidkommunikation zwischen der Aufnahmeleitung (20) und einen Zwischenraum (98) zwischen dem Körper (14) und der inneren Wand (82) bildet.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Deckel (16) eine Basis (52) umfasst, die eine untere Fläche (53) besitzt, die dazu vorgesehen ist, gegen eine äußere Fläche (E) der Wand (P) gedrückt zu werden, wobei der Aufnahmeraum (22) und der ringförmige Hohlraum (84) auf Höhe der unteren Fläche (53) münden.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass sie eine erste Dichtung (68) umfasst, die vorgesehen ist, um zwischen der Basis (52) und der äußeren Fläche (E) um die Öffnung (O) eingefügt zu werden, wobei der Durchführungsweg (92) zwischen der ersten Dichtung (68) und dem Körper (14) verläuft.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Deckel (16) ein Langloch (24) für die Durchführung des Stabs (12), das die Leitung (20) verlängert, umfasst, wobei der Deckel (16) zwischen dem Aufnahmeraum (22) und dem Durchführungslangloch (24) eine Schulter (70) aufweist, wobei die Vorrichtung eine zweite Dichtung (72) umfasst, die zwischen dem Körper (14), der Schulter (70) und dem Stab (12) eingefügt ist.
  7. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Körper (14) einen Kranz (28) für die Abstützung an einer äußeren Fläche (E) der Wand (P), ein erstes rohrförmiges Teilstück (30), das sich auf einer Seite des Kranzes (28) befindet und dazu vorgesehen ist, in der Öffnung (O) in Eingriff zu gelangen, und ein zweites rohrförmiges Teilstück (34), das sich auf einer zweiten Seite des Kranzes (28) gegenüber der ersten Seite befindet und in dem Aufnahmeraum (22) in Eingriff ist, umfasst, wobei die Basis (52) um den Aufnahmeraum (22) eine erste Ansenkung (64) für die Aufnahme des Kranzes (28), in die der ringförmige Hohlraum (84) mündet, aufweist.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der ringförmige Hohlraum (84) zwischen der inneren Wand und der äußeren Wand (82, 80) eine Dicke von mehr als 3 mm aufweist.
  9. Stabdurchführungsanordnung, die einen Stab (12) und eine Stabdurchführungsvorrichtung (10) nach einem der vorhergehenden Ansprüche umfasst, wobei der Durchführungsweg (94 wenigstens eine Durchlochung (40) aufweist, die den Körper (14) durchquert und eine Fluidkommunikation zwischen der Aufnahmeleitung (20) und einem Zwischenraum (98) zwischen dem Körper (14) und der inneren Wand (82) herstellt, wobei der Stab (12) eine entsprechende Durchlochung (42) aufweist, die in Übereinstimmung mit der Durchlochung (40) des Körpers (14) angeordnet ist, wobei in der Durchlochung (40) und in der entsprechenden Durchlochung (42) ein Stift (41) in Eingriff ist.
  10. Elektrische Anordnung (1), die Folgendes umfasst:
    - ein elektrisches Gerät (3) mit einer Wand (P), die eine Öffnung (O) aufweist, wobei die Wand (P) ein Innenvolumen (5) begrenzt, das mit einem dielektrischen Fluid gefüllt ist;
    - einen elektrisch leitenden Stab (12), der in der Öffnung (O) in Eingriff ist;
    - eine Stabdurchführungsvorrichtung (10) nach einem der Ansprüche 1 bis 8, die durch die Öffnung (O) verlaufend montiert ist und den Stab (12) aufnimmt.
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

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

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3731247B1 (de) * 2019-04-24 2021-11-10 Preis & Co Ges.m.b.H. Bausatz für eine durchführungsanordnung zur elektrischen anbindung einer transformatoranlage
KR102365356B1 (ko) * 2021-09-02 2022-02-23 (주)화승코퍼레이션 절연 부싱
EP4372767A1 (de) * 2022-11-16 2024-05-22 Preis GmbH Bausatz für eine durchführungsanordnung zur elektrischen anbindung einer transformatoranlage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0177518B1 (de) * 1984-04-03 1988-08-10 Werner Hauff Dichtkörper für eine durchführung für mindestens eine leitung durch eine wandöffnung
FR2633439B1 (fr) * 1988-06-22 1995-04-14 Alsthom Passe-barre pour transformateur electrique
FR2776419B1 (fr) 1998-03-18 2000-06-16 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
FR2901631B1 (fr) * 2006-05-23 2010-05-21 Pioch Ensemble passe-tige destine a etre monte a travers un orifice d'une paroi d'un transformateur electrique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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ES2676573T3 (es) 2018-07-23
EP3159901A1 (de) 2017-04-26

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