EP3574510A1 - Ensemble de contact électrique - Google Patents

Ensemble de contact électrique

Info

Publication number
EP3574510A1
EP3574510A1 EP18708913.1A EP18708913A EP3574510A1 EP 3574510 A1 EP3574510 A1 EP 3574510A1 EP 18708913 A EP18708913 A EP 18708913A EP 3574510 A1 EP3574510 A1 EP 3574510A1
Authority
EP
European Patent Office
Prior art keywords
contact plate
phase conductor
guide channel
conductors
sub
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
EP18708913.1A
Other languages
German (de)
English (en)
Other versions
EP3574510B1 (fr
Inventor
Johann Schlager
Jens Hoppe
Klaus Müller
Christian ROST
Vassil VELKOV
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.)
Siemens Energy Global GmbH and Co KG
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP3574510A1 publication Critical patent/EP3574510A1/fr
Application granted granted Critical
Publication of EP3574510B1 publication Critical patent/EP3574510B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires
    • H01F27/2828—Construction of conductive connections, of leads
    • 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
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/288—Shielding
    • H01F27/2885—Shielding with shields or electrodes

Definitions

  • the electrical contact assembly relates to an electrical devisanord ⁇ voltage comprising a first and a two Phasenleiterzug ⁇ th Phasenleiterzug which are the miteinan via a coupling point ⁇ electrically conductively connected.
  • Such an electrical contact arrangement is beispielswei ⁇ se from the international publication WO 2011/113479 AI known.
  • the local contact arrangement connects a first phase conductor with a second phase conductor via a coupling point electrically conductive.
  • the coupling point has for this purpose two pairs of sockets and bolts, which are slidably inserted into each other, wherein the sockets in turn are electrically contacted via current bands.
  • thermally induced changes in length can be compensated.
  • the known arrangement has the disadvantage that a plurality of contacting points is provided which increase contact resistance and thus exacerbate the problem ei ⁇ ner thermal load.
  • this object is achieved in an electrical contact arrangement of the type mentioned above in that the first phase conductor has a plurality of sub-conductors and the second phase conductor comprises a plurality of sub-conductors, which are mutually connected to a contact plate.
  • An electrical contact arrangement serves to form an electrically conductive connection between a first phase conductor train and a second phase conductor train.
  • Such Kon ⁇ clock arrangements can be used for example in Transformatorenbau to electrically connect, for example, electrical windings with loans of a transformer ⁇ or extend lines.
  • Transformers preferably have a transformer tank, inside which an active part of the transformer is arranged. The active part comprises, for example, electrical windings which can be arranged on the upper or lower side of the voltage.
  • the active part may include a transformer; ⁇ renkern, which is, for example, ferromagnetic configured to reduce scattering losses.
  • the trans- former boiler in turn, may be preferably flooded with an electrically iso ⁇ lierenden fluid a liquid, so that the active part of the transformer is lapped by the electrically iso ⁇ lierenden fluid.
  • the electrical contact arrangement can likewise be surrounded by the electrically insulating fluid.
  • the contact arrangement can be arranged completely in the electrically insulating fluid.
  • electrically insulating fluids for example, electrically insulating oils or electrically insulating esters have proven suitable.
  • the phase conductor tracks can preferably be split into several sub-conductors, at least in the region of the coupling point. This has on the one hand mounting advantages, since the sub-conductors are easier to handle. In particular, in the case of power transformers in the high and very high voltage range, which on the one hand are subject to a high dielectric stress and on the other hand serve to guide a high electric current, the mechanical workability of the phase conductor cables or their laying ability can be improved. In addition, a division in the sub-conductor has the
  • the sub-conductors each have a partial current ei ⁇ nes total over the phase conductor to be transmitted electrical can lead current, which due to the enlarged surfaces of the sub-conductors improved heat dissipation is possible.
  • the fluid can also see between the sub-conductors and carry a derivative of thermal energy from the sub-conductors.
  • the number of sub-conductors can be determined as needed. Preferably, a division into an even number of Operalei ⁇ tern, z. B. 4, 6, 8, 10 conductor made.
  • the phase conductor can be substantially aligned coaxially to ⁇ each other, wherein the sub-conductors are arranged opposite each other striving.
  • the conductor can you be deflected and thus the available mounting space ( ⁇ out at from the run of the phase conductors and trains
  • the contact plate may be, for example, a substantially ring-shaped contact plate, which is formed of electrically conductive material.
  • the sub-conductors may alternately be electrically conductively connected to the contact plate, so that electrical contacting of the respective sub-conductors of the respective phase conductor train is preferably carried out substantially from one direction with preferably substantially opposite sense of direction on the contact plate.
  • the sub-conductors of the first phase conductor can be arranged on a first side of the contact plate and the sub-conductors of the second phase conductor can be arranged on a second side of the contact plate.
  • the two sides of the contact plate, on which each sub-conductor are arranged, can be aligned in opposite directions on the contact plate.
  • the contact plate may be, for example, a substantially flat plate, in whose plate surfaces in each case receiving plate points for fixing the conductor can lie.
  • the contact plate may for example have recesses, in particular ⁇ special passage recesses through which parts of the sub-conductors or valve bodies of the sub-conductor can protrude through.
  • the conductor can be screwed to the contact plate, riveted, soldered, pressed, etc.
  • the contact plate can for example also have a profile on ⁇ , so a dielectric shielding of the partial elements, particularly their contact points may be made to the contact plate.
  • the contact plate may be a copper plate or a brass plate to which the sub-conductors are attached.
  • the sub-conductors can be arranged, for example distributed on a circular path on the contact plate. This supports a radial deflection of the sub-conductors from the alignment of the phase conductor tracks and stabilizes the position of the sub-conductors.
  • the sub-conductors of the first phase conductor as well as the sub-conductors of the second phase conductor can be arranged horizontally distributed on divergent circular paths. For example, these two circular paths can be arranged concentrically with each other and have different diameters.
  • the sub-conductors of the first phase conductor as well as the sub-conductors of the second phase conductor are arranged distributed on one and the same circular path. For example, in a Umlaufrich- tung the circular path, the conductor elements of the first phase conductor run alternately to the partial conductors of the second Phasenleiterzu ⁇ ges be positioned.
  • the contact plate may be formed elastically deformable, so that the sub-conductors outgoing forces, for example, as a result of heat ⁇ stress or current forces, absorbed in the contact plate and can be at least partially compensated.
  • a further advantageous embodiment may provide that the contact plate is associated with an orifice opening of a guide channel of the first and / or second phase conductor train.
  • a guide channel of the first phase conductor train or the two ⁇ th Phasenleiterzuges can serve to guide the sub-elements to direct or lead.
  • the guide channel can also serve to direct a flow of fluid.
  • the guide channel can embrace the sub-elements and prevent unintentional buckling or deflection of the sub-conductor.
  • the guide channel can thus cause a mechanical stabilization for the sub-conductors. For example, mechanically labile conductor elements can be stabilized in their position.
  • the guide channel may for example be formed substantially cylindrical.
  • the guide channels can be substantially aligned, in particular substantially coaxial with each other, wherein mouth openings of the guide channels can be arranged opposite one another on the front side.
  • the guide channel can be formed as an electrode, so that in addition to a mechanical guiding of the conductor part due to the shape of the guide channel further di ⁇ electrically shielding or homogenizing effect can emanate from the guide channel.
  • the bossska ⁇ nal can be formed to at least partially electrically conductive, said electrically conductive portions of the guide channel ⁇ preferably have the same electric potential as the conductor guided by it.
  • the guide channel may be at least partially metallic be ⁇ forms.
  • a non-metallic guide channel is used, are carried out elekt ⁇ driven conductive when ⁇ playing surface portions of the guide channel to cause a dielectric Homoge ⁇ nization of an electric field to the partial conductors.
  • the guide channel may, for example, in the materiality borrowed a hollow cylindrical structure optionally substituted with va ⁇ riierender wall thickness or varying wall profile exhibit ⁇ .
  • the Guide channel having a metallic tube, which is in particular ⁇ special outside jacket side provided with an electrically insulating coating.
  • a variation of the wall thickness can be achieved by a variation of the thickness of the electrically insulating coating.
  • a metallic tube may have a substantially constant cross-section.
  • Cellulosic isolati ⁇ onsmaterialien have proven to be an insulating material.
  • the guide channel can also have recesses in its course to ermögli ⁇ chen access to the guided inside the guide channel section conductors.
  • a guide channel has a mouth opening in order to allow the sub-conductors to emerge from the interior of the guide channel and to allow electrical contacting of the sub-conductors of the first phase conductor with the sub-conductors of the second phase conductor train.
  • a mouth opening may be delimited, in particular surrounded by a mouth opening flange.
  • An orifice can, for example, be arranged on the front side on a tubular guide channel.
  • the Mün ⁇ dung opening can, for example, preferably have a circular cross-section, wherein the cross section of the dung Mün ⁇ opening is preferably corresponding to the cross section of the guide channel is formed.
  • the contact plate can be arranged in the vicinity of the mouth opening in order to guide the conductor emerging from the opening opening as short as possible to the contact plate.
  • a common contact plate may be provided, which is associated with both an orifice ⁇ opening of a first guide channel of the first phase conductor as well as a mouth opening of the guide channel of the second phase conductor train.
  • a further advantageous embodiment can provide that the contact plate is supported on a guide channel of the first and / or second phase conductor train.
  • the contact plate may preferably be mechanically connected to a Füh ⁇ approximately canal and be sauce ⁇ is supported on a guide channel.
  • This can be used, the mechanical stability Guide # ⁇ approximately channel, which also serves a guide or line of corresponding sub-conductors, in order to fix the Maisplat ⁇ te relative to the guide channel.
  • the contact plate is supported on one of the guide channels in an angularly rigid manner, whereby relative movability to the other guide channel of the remaining phase conductor train is maintained.
  • the contact arrangement is movable and thus responsive to thermal changes formed.
  • a transmission of an electrical potential from the guide channel to the contact plate can be made.
  • dielectrically stable conditions are achieved, which counteract the emergence of undefined (floating) electrical potentials.
  • the contact plate is arranged in front of an orifice opening of the guide channel, in particular via at least one distance means.
  • a spacer device makes it possible to position the contact plate at a distance from the mouth opening.
  • the distance device can, for example, connect a mouth opening flange delimiting a mouth opening with the contact plate.
  • a coaxial alignment of mouth opening and contact plate takes place via the spacer device.
  • the spacer device may, for example, comprise one or more stay bolts which directly or indirectly connect a mouth opening flange with the contact connect / connect plate. If necessary, the spacer device can also serve to effect a potential transfer of the electrical potential from the guide channel to the contact plate (and vice versa).
  • the plane in which the mouth opening lies may be aligned substantially parallel to the plane in which a contact plate lies, with the distance from the contact plate and the mouth opening being fixed by the spacer device.
  • a further advantageous embodiment can provide that of the guide channel, a contact hood enclosing the shield hood is supported.
  • the contact plate can be arranged in the shield shade of a shield cap, wherein the shield cap a dielectric
  • the screen hood can preferably encompass the contact plate, so that the contact plate is arranged completely in the shield shadow, for example in the interior of the screen hood.
  • the shield cover may be preferably substantially designed hohlzylind ⁇ driven thereto, preferably project into the shield cover, the phase conductor tracks on the front sides of the hollow cylindrical shield cover, thereby substantially coaxial to-each other and are aligned with the shield cover.
  • the shield dome ⁇ turn may have electrically conductive surfaces preferably, for example, the umbrella cover can be formed in a multiple ⁇ a variant of an electrically conductive material.
  • a further advantageous embodiment can provide that the contact plate is arranged substantially transversely to an axial extension of the screen hood, wherein the contact ⁇ plate is positioned asymmetrically.
  • the contact plate can align substantially transversely to the axial extent of the screen hood.
  • a barrier in the interior of the screen hood which is arranged substantially transversely.
  • the position of the barrier or the position of the contact plate within the screen hood can be aligned asymmetrically. This has the advantage that the
  • Umbrella hood on the one hand causes a shielding of the asymmetrically arranged ⁇ contact plate, with an asymmetrically enlarged area for arrangement or deflection of part conductors of a phase conductor is made possible.
  • This asymmetri ⁇ specific arrangement should preferably be designed such that is designed to be smaller at a mounting of the contact plate on one of the réelleska ⁇ ducts the distance to the guide channel, which carries the contact ⁇ plate than the distance of the contact plate to the guide channel, to which the contact ⁇ plate is relatively movable.
  • a construction space is maraf ⁇ fen in order to make a bending or balancing the positions of the sub-conductor easy.
  • the shield cap is carried by at least one electrically insulating spacer.
  • An electrically insulating spacer is a laser the shield hood delay on one of the guide channels made light ⁇ .
  • the storage can be provided directly to one of the guide channels, but it can also be made an indirect storage of the umbrella cover.
  • the electrically insulating spacer can provide support for the umbrella hood via the contact plate, which is rigidly connected to a guide channel. Be ⁇ vorzugt of electrically insulating spacers should ever be ⁇ but directly connected to at least one of the guide channels.
  • a mouth opening flange of a mouth opening can also serve to support or abut an electrically insulating spacer.
  • An advantage of this construction is that a defined electrical Contacting the screen hood or potential exposure of the screen hood can be done because undifferentiated Streuströ ⁇ me are prevented by a spacer. Simultaneously for test and verification purposes targeted resolution of an electrically conductive interconnect (z. B. equipotential line) can be performed the screen cover with one of the phase conductor tracks, for example, so that the shield cover and Pha ⁇ senleiter or guide channels are electrically isolated from each.
  • a further advantageous embodiment can provide that the contact plate and the screen cover are interconnected via an equipotential ⁇ same line.
  • Equipotential line makes it possible to pressurize the special ⁇ both coupled to each other phase conductor runs through at least one electrically insulating spacer positioned shield cover to the electrical potential of a.
  • the contact plate may have a first contact point for the equipotential bonding conductor and the shielding cap may have a second contact point for the equipotential bonding conductor. Accordingly, a direct contacting or potential exposure of
  • Umbrella hood starting from the contact plate allows. This contact can also be separated in a simple manner, so that an electrically isolated spacing of the
  • Umbrella hood is given to the Phasenleiterratn after removal of the equipotential bonding line.
  • a further advantageous embodiment may provide that at least one sub-conductor is connected via a wire end fitting with the contact plate.
  • the sub-conductors of the first and / or the second phase conductor train preferably have a similar cross-sectional configuration.
  • the sub-conductors can protrude the front side in the direction of the contact plate.
  • the sub-conductor wire end fittings have, with which the sub-conductors are completed mechanically stabilized.
  • the wire end fittings can be formed for example in the form of cable lugs, which allow a suitable connec ⁇ tion with the contact plate.
  • the wire end fittings can be pluggable, screwable, solderable, pressable, clamped, etc., in order to electrically connect the sub-conductors to the wire-end fittings.
  • the wire arrays can have various shapes, for example a wire end fitting can have a threaded bolt in order to allow screwing the wire end fitting to the contact plate.
  • the wire end fitting may, for example, in the form of a cable lug with an eyelet, a tab, be equipped with a pin for clamping or bolting, screwing, pressing, etc.
  • a wire-end fitting can advantageously hinder damage to a free end of the sub-conductor and thus serve to cap a sub-conductor of a phase-conductor trace.
  • At least one sub-conductor is a flexible sub-conductor.
  • a flexible sub-conductor makes it possible to further simplify the mountability of the electrical contact arrangement.
  • heat dissipation from a flexible conductor can be positively influenced.
  • the sub-conductors may be formed from a leafy bundle of conductors, thereby allowing an additional enlargement of the heat-emitting surface of the sub-conductor.
  • a flexible sub-conductor for example, be a stranded conductor, whereby the flexibility of the deformability of the sub-conductor is additionally supported and a further improved heat dissipation is given.
  • a terminal-end stabilization of the fiber can be achieved by means of a wire-end fitting.
  • xible sub-conductor are made so that a simplified electrical contact with a flexible part ⁇ conductor is made possible with the contact plate.
  • the guide channel has a reduced cross-section in a section encompassed by the screen hood.
  • a guide channel may preferably be designed as a hollow cylinder, while the cross section of the guide channel is variably ausgestaltetbar.
  • a guide channel as support ⁇ element having a metallic tube, which is surrounded by an electrically insulating layer. At least in the region of the electrically insulating layer, the tube has a substantially constant cross section.
  • a Variati ⁇ on the of the cross section of the guide channel can preferably be done by changing the thickness of the electrically insulating layer.
  • the electrically insulating layer preferably comprises cellulose fibers.
  • the guide channel may undergo a Quer4.000sredu ⁇ cation in the cover screen, whereby a shoulder is formed in the course of the guide channel.
  • the shoulder may close an Publ ⁇ voltage in the shield cover dielectrically preferred, due to the reduction in cross section a sufficient gap see be- guide channel and an umbrella dome is given to allow a fluid in the interior of the shield hood and thus a contact ⁇ plate-flowing around fluid flow ,
  • a shoulder may be created by reducing the thickness of an electrically insulating layer.
  • the shoulder may form a termination of an electrically insulating layer.
  • the shield cover may have a hollow cylindrical Wesentli ⁇ chen molding, wherein the guide channels extend in each case the end face in the interior of the shield cover.
  • the shielding cap can have a flange at its end.
  • the object is achieved in that in a transformer ⁇ gate arrangement with an electrical winding, the electrical winding is electrically contacted by a contact arrangement of the type described above.
  • a transformer arrangement has a transformer which has an active part.
  • the active part has at least on ⁇ an electrical winding, which serves a generating egg nes electromagnetic field.
  • meh ⁇ eral electric windings are coupled by electromagnetic fields in order, ie essentially pre-voltage converting a change in voltage level of an AC voltage.
  • the Verwen ⁇ tion of a transformer core is provided, which conducts a magnetic flux low resistance and directs.
  • the electrical winding (windings) or the transformer core are part of an active part of the transformer.
  • the active part is preferably arranged inside a transformer boiler, which mechanically protects the active part.
  • the transformer tank can be used to separated an electrically insulating fluid to dispose of the environment around the active part around.
  • the electrically insulating fluid may preferably completely flood and trap the active part.
  • the contact arrangement can be used to integrate, for example, an electrical winding of the Transforma ⁇ sector in an electric power transmission network.
  • outdoor bushings can be provided on the transformer arrangement, via which the winding can be electrically contacted with the interposition of the contact arrangement.
  • An outdoor bushing serves, for example, a dielectrically stable electrically insulated
  • This wall of transformers ⁇ gates boiler may for example be removablebil ⁇ det electrically conductive and lead ground potential.
  • a contact arrangement can in particular serve to connect or integrate an outdoor bushing with an electrical winding of the transformer.
  • Figure 1 a cross section through an electrical contact ⁇ arrangement
  • FIG. 2 shows a perspective view of a contact plate as known from FIG.
  • FIG. 1 shows a section of a first phase conductor 1 and a second phase conductor 2 of an electrical contact arrangement.
  • the first phase conductor 1 and the second phase conductor 2 extend substantially along a major axis 3.
  • the first phase conductor 1 and the second phase conductor 2 are aligned substantially aligned with the main axis 3 and aligned therewith, in particular substantially coaxial with each other.
  • Both the first and the second Phasenleiterzug 1 Pha ⁇ senleiterzug 2 each have a plurality of conductor elements la, lb, lc, 2a, 2b, 2c.
  • the sub-conductors la, lb, lc, 2a, 2b, 2c are each formed as a flexible sub-conductor, which in the present case are each multi-wire, in particular multi-wire formed. As a result, a stranding of the sub-conductor in itself and the sub-conductor is made possible with each other.
  • the sub-conductors 1a, 1b, 1c, 2a, 2b, 2c are spliced on at the mutually facing ends of the first phase conductor trace 1 and the second phase line trace 2, so that a radial enlargement in the region of the electrical contacting of the first phase conductor 1 and the second Phase conductor 2 takes place.
  • the first Phasenleiterzug 1 is surrounded by a first suddenlyska ⁇ nal. 4
  • the second phase conductor 2 is surrounded by a second guide channel 5.
  • the guide channels 4, 5 are constructed substantially the same.
  • the guide channels 4, 5 each have a pipe of an electrically conductive material such as copper or aluminum, and surround the first Phasenleiterzug 1 and the second Phasenleiterzug 2, in particular in the region in which a Caribbeanfas ⁇ solution of the partial conductors la, lb, lc and 2a, 2b, 2c.
  • the guide channels 4, 5 act as electrodes for the first and second Phasenleiterzug 1, 2.
  • the Füh ⁇ rungskanäle 4, 5 each have the same electrical potential as the phase conductor 1, 2.
  • the respectively tube (support tube) of Guide channels 4, 5 is applied a coating of electrically insulating material.
  • the concernedska ⁇ ducts 4, 5 have at the ends facing each other each have a mouth opening 6. 7
  • the mouth openings 6, 7 are each provided with a circular cross section, wherein the mouth openings are arranged coaxially opposite each other.
  • the mouth openings 6, 7 are also aligned coaxially to the main axis 3.
  • channel axes of the first and second guide channel 4, 5 are aligned coaxially to the main ⁇ axis 3.
  • the mouth openings 6, 7 are einan ⁇ the facing and spaced from each other. To limit the respective opening 6, 7 of the first or
  • second guide channel 4, 5 is in each case a mouth opening flange 8, 9 at the mutually facing end faces of the first th and second guide channels 4, 5 are arranged.
  • a mouth opening flange 8, 9 at the mutually facing end faces of the first th and second guide channels 4, 5 are arranged.
  • the cross-sectional reduction is formed such that the wall thickness of the guide channels 4, 5 is reduced at the sides facing each other, namely reduced such that the cross section 5 of the recess in the In ⁇ partners of the first and second guide channels 4, 5 is kept constant, so that the outer shell side of the personallyskanä ⁇ len 4, 5 each have a shoulder is formed.
  • coatings of electrically insulating material are reduced in thickness.
  • the shielding cap 10 is configured essentially as a hollow cylinder, wherein beads are provided at the ends of the hollow cylinder and projecting inwards. As a result, the end faces are rounded, whereby a curved ring structure is in each case provided on the end face of the screen hood 10.
  • This rounded contour in cooperation with the respective shoulder in the region of the cross-sectional reduction of the first and second guide channel 4, 5 serves to shield the frontal openings of the umbrella hood 10, in which the first and the second guide channel 4, 5 respectively projects.
  • a hintergreifung formed by the beading ⁇ te is filled with a filling compound 11.
  • This filling compound 11 can be, for example, an electrically insulating resin, which is embedded in fluid form in the interior of the flanging and hardens there.
  • Inside the canopy 10 more ribs are arranged in the form of rings. Via the ribs, a positioning of the umbrella hood 10 relative to the guide channels 4, 5 is made possible.
  • at least one electrically insulating spacer can be arranged on a rib in order to ensure a coaxial alignment of the umbrella hood 10, in particular to the guide channels 4, 5.
  • This spacer may be an elastic plastic element, for example, which is for example fixed to a rib, and in turn, for example on a Mündungsö Stammsflansch 8, 9 rests, snapped onto, or otherwise this is buildin ⁇ Untitled.
  • an axial displaceability of the umbrella hood 10 can be achieved via the electrically insulating spacer, whereby access to the area between the mouth openings 6, 7 between the first and second guide channel 4, 5 is made possible.
  • a contact plate 12 is disposed inside the shield cap 10.
  • the contact plate 12 is here exemplified as an annular disc, which is ko ⁇ arranged axially to the main axis 3.
  • the contact plate 12 is aligned substantially transversely to the main axis 3. Furthermore, the position of the contact plate 12 between the mouth openings 6, 7 of the first and second istsungskana- les 4, 5 selected asymmetrically, so that the distance between the Kon ⁇ clock plate 12 to the mouth opening 6 of the first guide channel 4 is less than the distance of the contact plate 12 to the Mün ⁇ tion opening 7 of the second guide channel 5.
  • the first Phasenleiterzug 1 When using the electrical contact arrangement in a discharge to a fluid-insulated transformer, wherein the discharge between a bushing and a winding of the transformer, the first Phasenleiterzug 1 would face the implementation.
  • the second phase conductor 2 would be associated with the winding of the transformer.
  • the contact plate 12 is connected by a spacer device 13 with the mouth opening flange 8 of the first guide channel 4 with a rigid angle.
  • the spacer device 13 has an annular adapter plate 13a, which is flanged with the mouth opening flange 8 of the first guide channel 4.
  • four stud bolts 13b which are distributed in particular in a square, can be distributed over a circular path of the adapter plate 13a.
  • the stud 13b occidentalre ⁇ CKEN extending substantially parallel to the main axis 3 and bil ⁇ 12.
  • the contact plate 12 is the a cage between the adapter plate 13a and the other end of the stud bolts 13b disposed annular contact plate on the Distanzein- direction 13 angularly rigid first with the Guiding channel 4 connected and supported by this.
  • the contact plate 12 is held at a distance from the mouth opening 6 of the first guide channel 4.
  • the mouth opening 6 of the first guide channel 4 and the contact plate 12 are aligned coaxially with each other.
  • the first phase conductor 1 or the sub-conductors la, lb, lc of the phase conductor 1 pass through the central opening of the annular adapter plate 13a and protrude in the direction of the contact plate 12.
  • the studs 13b are cage-like outside of the circular path on which the sub-conductors la, lb, Lc of the first phase conductor 1 are distributed, distributed.
  • annular contact plate 12 two circular paths are provided, wherein a first smaller diameter circular path is provided to set up receiving points for the Operalei ⁇ ter la, lb, lc of the first phase conductor 1.
  • a second circular path of larger diameter is provided on the con ⁇ tact plate 12 to positions for the sub-conductors 2a, 2b, 2c of the second phase conductor 2 at the contact plate 12 set.
  • the contact plate 12 has on the respective circular paths ⁇ through holes, into which threaded bolts protrude (see also Figure 2).
  • the threaded bolts are each connected to wire end fittings 14, which terminate the partial conductors la, lb, lc, 2a, 2b, 2c of the first and second phase conductor 1, 2 frontally.
  • the Aderend ⁇ fittings 14 are to cap-like drawn over the front ends of the partial conductors la, lb, lc and are electrically conductively connected by means of suitable methods with the partial conductors.
  • the sub-conductors 1a, 1b, 1c, 2a, 2b, 2c of the phase conductor tracks 1, 2 can be connected to the wire-end fittings 14 in a material-locking manner, for example by a soldering method.
  • the wire end fittings 14 each have wrench surfaces in order to fix them on the contact plate 12 and to clamp the threaded bolts with a corresponding nut on the front side.
  • the threaded bolts are mounted on the front side of the capping wire end fittings 14, so that a substantially parallel alignment of the wire end fittings 14 to each other and to the main axis 3 can be made.
  • a potential equalization line 15 is provided.
  • the potential equalization line 15 is electrically conductively connected by means of releasable connections on the one hand to the contact plate 12, on the other hand to the shield cap 10.
  • the shroud 10 via the potential equalization line 15, in particular the annular ribs in the interior, ie within the
  • the potential equalization line 15 makes it possible to release the electrical contacting of the shielding cap 10, as a result of which the shielding cap 10 can be removed for assembly purposes.
  • the shielding cover 10 is removed by axial displacement with a correspondingly long configuration of the potential compensation line 15.
  • a cup-shaped division of the screen hood 10 is made.
  • a barrier 16 is further shown, which has a substantially hollow cylindrical configuration.
  • the barrier 16 is formed from an electrically insulating material, for example pressboard.
  • the Barrie ⁇ re 16 serves electrical insulation of the barrier 16 surrounded by the electrical contact arrangement.
  • the barrier 16 in turn is exposed to an electrically insulating fluid and also serves to conduct or influence the flow of an electrically insulating fluid which flows around and through the electrical contact arrangement.
  • FIG. 2 shows the spacer device 13 together with the contact plate 12 fastened thereto.
  • the stud bolts 13b are fixed to the adapter plate 13a by means of screw connections.
  • the screw connections are arranged in through-holes of the adapter plate 13a, with screw heads being countersunk in order to screw the adapter plate 13a, with its side facing away from the contact plate 12, flush with the mouth opening flange 8 of the first guide channel 4.
  • the outer diameter of adapter plate 13a and contact plate 12 have an approximately similar dimension. However, the ring width of the contact plate 12 is larger than the ring width of the adapter plate 13 a.
  • the sub-conductors 1a, 1b, 1c of the first phase conductor line 1 protrude in the direction of the contact plate 12.
  • the conductor end fittings 14 of the sub-conductors 1a, 1b, 1c of the first phase conductor line 1 are on one
  • Circular path arranged distributed.
  • the circular path, on which the sub-conductors la, lb, lc of the first phase conductor 1 are distributed, has a smaller diameter than the circular path on which the wire end fittings 14 of the sub-conductors 2a, 2b, 2c of the second phase conductor 2 are distributed .
  • the sub-conductors 1a, 1b, 1c, 2a, 2b, 2c of the first and second phase conductor 1, 2 are respectively Finally arranged on one side of the contact plate 12 and aligned in the same direction, so that the threaded bolts of the wire end fittings 14 protrude in opposite directions through the contact plate 12 and in opposite directions against the contact plate 12 can be clamped.
  • the position of the contact points of the conductor end fittings 14 of the sub-conductors 1a, 1b, 1c, 2a, 2b, 2c is selected such that sub-conductors 1a, 2a, 1b, 2b, 1c, 2c of the first and second phase conductor line are arranged one below the other 1, 2 each lie on a radius.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Installation Of Bus-Bars (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

L'invention concerne un ensemble de contact électrique présentant une première section de conducteur de phase (1) ainsi qu'une deuxième section de conducteur de phase (2). La première section de conducteur de phase (1) et la deuxième section de conducteur de phase (2) sont reliées l'une à l'autre de manière électroconductrice par un point de couplage. La première section de conducteur de phase (1) présente plusieurs parties conductrices (1a, 1b, 1c). La deuxième section de conducteur de phase (2) présente plusieurs parties conductrices (2a, 2b, 2c). Les parties conductrices (1a, 1b, 1c, 2a, 2b, 2c) de la première section de conducteur de phase (1) ainsi que de la deuxième section de conducteur de phase (2) sont reliées de manière électroconductrice respectivement alternativement à une plaque de contact (12).
EP18708913.1A 2017-03-10 2018-02-13 Ensemble de contact électrique Active EP3574510B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017204031.9A DE102017204031A1 (de) 2017-03-10 2017-03-10 Elektrische Kontaktanordnung
PCT/EP2018/053501 WO2018162180A1 (fr) 2017-03-10 2018-02-13 Ensemble de contact électrique

Publications (2)

Publication Number Publication Date
EP3574510A1 true EP3574510A1 (fr) 2019-12-04
EP3574510B1 EP3574510B1 (fr) 2021-03-31

Family

ID=61569212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18708913.1A Active EP3574510B1 (fr) 2017-03-10 2018-02-13 Ensemble de contact électrique

Country Status (4)

Country Link
EP (1) EP3574510B1 (fr)
CN (1) CN110402471B (fr)
DE (1) DE102017204031A1 (fr)
WO (1) WO2018162180A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1574064A (en) 1922-07-21 1926-02-23 George L Chamberlain Electrical connection for transformers and the like
FR1393509A (fr) * 1964-02-12 1965-03-26 Materiel Electrique S W Le Traversée isolante sons forte intensité pour appareil électrique
JPS5936909A (ja) * 1982-04-05 1984-02-29 Hitachi Ltd 静止誘導電器の接続装置
US7358845B2 (en) * 2006-08-15 2008-04-15 Eaton Corporation Cable limiter and crab limiter employing replaceable fusible element
US8129618B2 (en) * 2007-09-10 2012-03-06 Richards Manufacturing Company, A New Jersey Limited Partnership Cable joint
BR112012023429B1 (pt) 2010-03-16 2019-07-09 Siemens Aktiengesellschaft Disposição de conexão de múltiplos contatos para conexão elétrica de um componente elétrico com uma conexão elétrica e sistema de linhas de orientação com uma disposição de conexão de múltiplos contatos
DE102015007882A1 (de) * 2015-06-22 2016-12-22 Tesat-Spacecom Gmbh & Co.Kg Hochspannungsverbinder

Also Published As

Publication number Publication date
DE102017204031A1 (de) 2018-09-13
EP3574510B1 (fr) 2021-03-31
CN110402471B (zh) 2022-10-11
CN110402471A (zh) 2019-11-01
WO2018162180A1 (fr) 2018-09-13

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