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EP0905721A2 - Durchführungsvorrichtung und Durchführungsanordnung mit einer solchen Durchführungsvorrichtung - Google Patents

Durchführungsvorrichtung und Durchführungsanordnung mit einer solchen Durchführungsvorrichtung Download PDF

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Publication number
EP0905721A2
EP0905721A2 EP98402153A EP98402153A EP0905721A2 EP 0905721 A2 EP0905721 A2 EP 0905721A2 EP 98402153 A EP98402153 A EP 98402153A EP 98402153 A EP98402153 A EP 98402153A EP 0905721 A2 EP0905721 A2 EP 0905721A2
Authority
EP
European Patent Office
Prior art keywords
rod
stop
cover
outer sheath
internal
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.)
Withdrawn
Application number
EP98402153A
Other languages
English (en)
French (fr)
Other versions
EP0905721A3 (de
Inventor
Olivier Pioch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioch SA
Original Assignee
Pioch SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pioch SA filed Critical Pioch SA
Publication of EP0905721A2 publication Critical patent/EP0905721A2/de
Publication of EP0905721A3 publication Critical patent/EP0905721A3/de
Withdrawn legal-status Critical Current

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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
    • H01F27/02—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

Definitions

  • the present invention relates to a rod pass device intended to be mounted through an orifice in a wall, of the type comprising on the one hand a body and cover intended to be arranged each on one side of the wall and on the other hand means for connecting the body and the cover to enclose said wall between them, the body and the cover having passages aligned, intended for the reception of a conductive rod.
  • the invention further relates to a rod pass assembly of the type comprising a rod pass device and a conductive rod received in the passages aligned with the body and the cover, which rod goes right through leaves the body and the cover and has a connection at one of its ends for an electric cable.
  • rod pass devices intended to be fixed on a low-voltage output rod from a transformer.
  • Such a component has an electrical function, consisting in supplying the output current of the transformer from the output windings, located inside the transformer housing, down to external electrical circuits, everything ensuring faultless electrical insulation between the conductive rod and the carcass.
  • a rod pocket device In order to perform this electrical function safely during long years, a rod pocket device must also have mechanical properties, in relation to the temperatures of operation up to 250 ° C), vibration, and static stress due to the mounting or assembly of the device.
  • known rod-pocket devices generally include a body in ceramic or thermoset epoxy material, shaped skirt, provided with an annular zone passing through an orifice arranged in the wall of a transformer, and an annular cover located on the other side of the wall with respect to the cover, said body cooperating with the cover to enclose the transformer wall so as to present an assembly mechanically solid, and electrically insulating with respect to the rod conductive.
  • the cohesion of the assembly is ensured by nuts fastening screwed to the ends of the outlet rod.
  • the invention aims to provide a solution to this problem by proposing a rod-passing device and a rod-passing assembly comprising it to achieve satisfactory performance both with regard to the insulation characteristics, that the resistance characteristics to external mechanical and chemical attack.
  • the invention relates to a rod-type device of the type mentioned above, characterized in that the cover has an internal core defining the rod receiving passage and an outer sheath covering the lateral wall of the inner core, the inner core and the outer sheath being made of different materials.
  • the invention further relates to a rod-rod assembly, of the type aforementioned characterized in that said connection comprises a tab provided with means for fixing the cable and the rod carries on the one hand a fixed stop and on the other hand an axially movable socket, said tab being integral with one of said stop and said socket, said stop and said socket comprising internal and external lateral surfaces adapted to cooperate by effect corner along the axis of the rod, said internal lateral surface covering at at least partially said external lateral surface, the rod comprising means for clamping the sleeve against said stop along the axis of the rod.
  • the rod holder assembly shown in Figure 1 and generally designated by the reference 10, comprises a rod-passing device 12 and a rod conductive thread 14 having, at an outer end, a connection 16, shown in more detail in FIG. 3, and at an inner end, a connection 17 shown in more detail in FIG. 4.
  • the rod holder device 12 essentially comprises a cover 18 and a body 20 both traversed right through by the rod 14.
  • the cover 18 and the body 20 are intended to be arranged each on one side of a wall (not shown), the rod 14 forming means for connecting the body and the lid to enclose the wall between them.
  • the body 20 is generally of X-X axis revolution. It has an axial passage 22 for receiving the rod 14.
  • the body 20 is formed of a sleeve comprising a grooved section, denoted 24A, suitable for crossing the orifice of the wall on which is installed the rod holder device, and to penetrate inside a housing of the cover 18.
  • the section 24A is extended by a frustoconical section 24B coming matter with this one. They are separated by a rim 26 forming a bearing surface 27 on one of the faces of the wall.
  • the section 24B comprises a flange 28 having a smaller outside diameter the diameter of the rim 26.
  • the rim 26 has two diametrically opposite flats 29 intended to hold the body in position 20 using a suitable key or a stop formed on the wall.
  • the rim 26 and the flange 28 are connected by a set of ribs triangular reinforcement 30 extending axially. These ribs have a regular distribution along the periphery of the body.
  • the cover 18 has a generally substantially cylindrical shape with an upper face 40 and a lower face 42, the latter being adapted to come into contact with the wall on which is installed the rod holder assembly.
  • the cover 18 has an inner core 44 and an outer sheath 46 covering the side wall of the inner core, the internal core and external sheath being made of different materials.
  • the outer lateral wall of the core 44 has on an upper section a cylindrical shape extended towards the lower face 42 by a frustoconical lower section widening gradually towards the end lower.
  • the core 44 delimits an axial passage 47.
  • the diameter of the passage 46 is substantially equal to the outside diameter of the rod 14.
  • the passage 47 has a recess 48 forming a through chamber intended for receiving the fluted section 24A of the body.
  • the length of the recess 48 is greater than the length of the fluted section 24A.
  • the passage 47 In the vicinity of its upper face 40, the passage 47 has a cylindrical opening 50 centered along the X-X axis.
  • the cylindrical opening 50 successively comprises two coaxial cylinders 50A and 50B.
  • a first cylinder 50A emerging on the upper face 40 has an inner diameter greater than the diameter of the second cylinder 50B extending the first cylinder 50A axially.
  • the first cylinder 50A is intended to receive washers 52 then that the second cylinder 50B is adapted to receive a spacer 54 and a seal 56.
  • the spacer 54 has a generally cylindrical shape and includes a flange 58A extending in the lower part of the cylinder 50A and an axial part of smaller diameter 58B extending in the second cylinder 50B.
  • the inner core 44 has, on its underside 42, a groove peripheral 60 centered on the X-X axis in which an O-ring is received 62 intended to be applied against the wall and thus ensure sealing between it and the cover 18.
  • the internal core 44 is made of a material plastic, in particular PBT (polybutylene terephthalate) or polyamide.
  • the sheath 46 has a generally cylindrical shape with an X-X axis. She is formed by a wall of revolution generally having a thickness constant reduced by around 1 to 2 mm.
  • the profile of the inner surface of the sheath 46 corresponds to the profile of the outer surface of the core 44.
  • the sheath 46 has since its upper end a hollow cylindrical section of section of revolution extended by a hollow frustoconical section which widens gradually towards the lower end of the sheath.
  • the sheath 46 has a re-entrant flange 66 intended to come into contact on the upper surface of the core 44.
  • the rim 66 is internally bounded by a passage the diameter of which corresponds substantially to the diameter of the washers 52 received in the cylinder 50A.
  • the sheath 46 On its outer surface, the sheath 46 comprises, successively, along the length of its cylindrical section, at least one flange 68 coming of matter. These collars, three in number in Figure 1, extend over the entire periphery of the sheath and thus increase locally the diameter of it.
  • the outer sheath is advantageously made of elastomer, in particular silicone or neoprene.
  • the outer sheath 46 is made of a material more deformable than that forming the inner core 44.
  • the sheath 46 and the core 44 are produced separately and are assembled by fitting the core inside the deformable sheath 46.
  • connection 16 mounted at the outer end of the rod 14 on the side of the cover 18.
  • This connection essentially comprises a stop 100, a tab 102 for fixing an electric cable and means 104 for tightening the tab 102 on the stop 100.
  • the stop 100 is formed by a ring 106 engaged on the threaded rod 14.
  • This ring has a internally threaded section in engagement with the thread of the rod.
  • the section threaded externally has a hexagonal drive noted 108.
  • This section is extended by a set of axial lips 110, for example four in number, separated by axial notches 112.
  • the surface internal of the lips 110 is initially smooth and cylindrical.
  • the surface external marked 110A of the lips delimits a frustoconical surface, the diameter is gradually decreasing towards the free end of the lips.
  • the stop 100 is made for example of copper.
  • the tab 102 comprises a plate 120 extended by a socket 122 engaged on the threaded rod 14.
  • the plate 120 extends perpendicularly to the rod 14. It comprises, at its free end, means 124 for fixing of an electric cable.
  • These fixing means comprise for example necklaces not shown screwed using screws received in holes threaded through the plate 120.
  • the socket 122 has an internal frustoconical surface internally 122A of shape substantially complementary to that of the surface external frustoconical 110A delimited by the external surface of the lips 110.
  • the internal diameter of the sleeve 122 has been continuously decreasing since its end opposite the stop 100 to its opposite end clamping means 104.
  • the tab 102 in particular the socket 122, is advantageously made made of an electrically conductive material harder than the material forming the stop 100. It is for example made of brass or bronze.
  • the clamping means 104 of the tab 102 on the stop 100 are by example formed by a nut 130 screwed to the free end of the rod 14.
  • connection 17 mounted at the end of the rod 14 on the side of the body 20.
  • connection comprises, like the connection 16 of FIG. 3, essentially a fixed stop 200, a tab 202 for fixing a cable electric and means for clamping the tab 202 against a socket 206 movable along rod 14.
  • the sleeve 206 is formed by the collar 28.
  • the clamping means are formed by the internally threaded ring 106 with the hexagon drive 108.
  • the sleeve 206 is arranged along the axis of the rod 14 at the end of the rod pass device 12 on the side of the stop 200. It comprises, like the sleeve 122, a tapered internal lateral surface denoted 206A. This last has a progressively increasing diameter towards the open end towards the stop 200.
  • the stop 200 is integral with the end of the rod 14. It is formed an annular base 208 extended by lips 210 separated according to the periphery of the rod 14 by axial notches 212.
  • the stop 200 a in the section defined by the lips 210, a frustoconical external lateral surface 210A whose diameter is gradually decreasing towards the free end of the lips.
  • the base 208 has on its external face a yoke 214 in which is retained the tab 202.
  • the tab 202 extends in the extension of the rod 14.
  • the tab 202 has, like the tab 102, tapped holes 216 for fixing an electric cable.
  • the body 20 and in particular its fluted section 24A through an orifice formed in the wall.
  • the rod 14 previously provided with the fixed stop 200 is then introduced into passage 22 so that it passes right through share the body 20.
  • the cover 18, previously assembled, is then put in place.
  • the pre-assembly of the cover 18 consists in covering the essentials of the lateral surface of the inner core 44 by the outer sheath 46.
  • the seal 56, the spacer 54 and the washers 52 are then introduced. in the opening 50.
  • the stop 100 is then screwed to the free end of the rod 14.
  • the stop 100 is brought to bear on the visible washer 52 of so as to apply the lower face 42 of the body provided with the seal 62 on the wall.
  • the tightening of the stop 100 leads to the engagement of the lips 210 to inside the bush 206.
  • the external lateral surface 210A is partially capped by the internal lateral surface 206A.
  • the tab 102 and the nut 130 are then engaged on the free end external of rod 14. Tightening nut 130 causes engagement and the cooperation of the frustoconical surfaces 110A, 122A facing brought by the stop 100 and the socket 122.
  • the lips 120 gradually deform towards the X-X axis and undergo a stamping on the thread of the rod 14.
  • the deformation of the lips 110 under the action of the displaced bush 122 along the axis of the rod causes the latter to jam on the stop 100.
  • the stop 100 and the sleeve 122 are then in support one against the other over the entire surface of the frustoconical walls in contact. This large contact surface ensures effective wedging and retention mechanical of the tab 102 on the stop 100. Thus, even in the event of loosening the nut 130, the connection between the tab 102 and the stop 100 is ensured by corner effect. In addition, the deformation of the lips 100 on the rod threaded 14 secures the stop 100 with the rod and therefore a reliable coupling of the ring 100 on the rod.
  • the cooperation of the complementary surfaces of the socket 206 and the stop 200 ensures that in the event of loosening of the stop 100, the tab 202 remains integral with the sleeve 206 and the rod-passing device.
  • the core 44 made of a plastic material having mechanical properties capable of ensuring correct retention of the rod is completely protected from external aggressions by the sheath 46.
  • the latter made of a resistant material, is not very sensitive chemical and mechanical external aggressions.
  • successive flanges 68 create an elongation of the superficial path defined axially on the surface of the cover, limiting thus the propagation of the leakage currents on the surface of the rod pass device.
  • the sleeve 206 has not come in one piece with the body 20. It consists of a ring engaged on the rod 14 between the body 20 and the stop 200. It rests on the body during the tightening the stop 100.
  • the legs 102 and 202 are flat in the example described here. However, as a variant, they are curved and have deformations modifying their orientation relative to the axis of the rod pass device. The paw 102 can thus extend parallel to the axis of the device.
  • leg section can be rounded to allow the welding or crimping of conductive cables.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Insulators (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
EP98402153A 1997-09-03 1998-08-31 Durchführungsvorrichtung und Durchführungsanordnung mit einer solchen Durchführungsvorrichtung Withdrawn EP0905721A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9710968A FR2767959B1 (fr) 1997-09-03 1997-09-03 Dispositif passe-tige et ensemble passe-tige le comportant
FR9710968 1997-09-03

Publications (2)

Publication Number Publication Date
EP0905721A2 true EP0905721A2 (de) 1999-03-31
EP0905721A3 EP0905721A3 (de) 1999-06-16

Family

ID=9510725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98402153A Withdrawn EP0905721A3 (de) 1997-09-03 1998-08-31 Durchführungsvorrichtung und Durchführungsanordnung mit einer solchen Durchführungsvorrichtung

Country Status (4)

Country Link
US (1) US6156979A (de)
EP (1) EP0905721A3 (de)
JP (1) JPH11162743A (de)
FR (1) FR2767959B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2786943A1 (fr) * 1998-12-07 2000-06-09 Soule Materiel Electr Dispositif de coupure electrique pour moyenne et haute tension
SE526713C2 (sv) * 2003-07-11 2005-10-25 Abb Research Ltd Genomföring samt förfarande för tillverkning av genomföringen
FR2901630B1 (fr) * 2006-05-23 2008-10-17 Pioch Soc Par Actions Simplifi Passe-barre
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
EP2031288B1 (de) * 2006-06-07 2010-07-14 Furukawa Electric Industrial Cable Co., Ltd. Durchführung und buchse
CN101136280A (zh) * 2006-08-31 2008-03-05 Abb技术有限公司 高压设备、高压套管以及装配所述设备的方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979549A (en) * 1972-09-25 1976-09-07 Rostone Corporation Composite of metal and thermoset plastic
EP0446404A1 (de) * 1990-03-13 1991-09-18 Joslyn Corporation Anordnung einer elektrischen Hochspannungsdurchführung für draussen
EP0678879A1 (de) * 1994-04-21 1995-10-25 Pioch S.A. Stangendurchführung, insbesondere für Transformator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3856983A (en) * 1972-06-30 1974-12-24 Conax Corp Electrical penetrant structure
US3803523A (en) * 1973-03-06 1974-04-09 Central Moloney Inc Transformer bushing
US4965407A (en) * 1988-12-09 1990-10-23 Cooper Industries, Inc. Modular bushing
FR2726684A1 (fr) * 1994-11-07 1996-05-10 Sediver Isolateur electrique et son procede de fabrication
US5952617A (en) * 1996-04-19 1999-09-14 Jersey Central Power & Light Company Power transformer and coupling means
US5808536A (en) * 1996-06-28 1998-09-15 General Signal Corporation Power transformer and coupling means therefor
US5902963A (en) * 1996-09-18 1999-05-11 Schneider Electric High voltage insulator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979549A (en) * 1972-09-25 1976-09-07 Rostone Corporation Composite of metal and thermoset plastic
EP0446404A1 (de) * 1990-03-13 1991-09-18 Joslyn Corporation Anordnung einer elektrischen Hochspannungsdurchführung für draussen
EP0678879A1 (de) * 1994-04-21 1995-10-25 Pioch S.A. Stangendurchführung, insbesondere für Transformator

Also Published As

Publication number Publication date
JPH11162743A (ja) 1999-06-18
EP0905721A3 (de) 1999-06-16
FR2767959B1 (fr) 1999-11-19
US6156979A (en) 2000-12-05
FR2767959A1 (fr) 1999-03-05

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