EP0513416B1 - Elément de connexion de câble, construction coaxiale, a faible champ de fuit - Google Patents

Elément de connexion de câble, construction coaxiale, a faible champ de fuit Download PDF

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Publication number
EP0513416B1
EP0513416B1 EP91107983A EP91107983A EP0513416B1 EP 0513416 B1 EP0513416 B1 EP 0513416B1 EP 91107983 A EP91107983 A EP 91107983A EP 91107983 A EP91107983 A EP 91107983A EP 0513416 B1 EP0513416 B1 EP 0513416B1
Authority
EP
European Patent Office
Prior art keywords
tube
potential
bolts
cable
element according
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.)
Expired - Lifetime
Application number
EP91107983A
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German (de)
English (en)
Other versions
EP0513416A1 (fr
Inventor
Karl Höfner
Hans-Joachim Dipl.-Ing. Humbert
Peter Wengler
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 AG
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Priority to DE59103507T priority Critical patent/DE59103507D1/de
Priority to AT91107983T priority patent/ATE114079T1/de
Priority to ES91107983T priority patent/ES2063400T3/es
Priority to EP91107983A priority patent/EP0513416B1/fr
Publication of EP0513416A1 publication Critical patent/EP0513416A1/fr
Application granted granted Critical
Publication of EP0513416B1 publication Critical patent/EP0513416B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations

Definitions

  • the invention relates to a connection element for the stray field-poor connection of stray field-poor arranged partial cables of a direct current cable bundle to electrical equipment.
  • each plate there is a connecting tab pointing towards the busbars for connecting the connecting piece with the two polarities of the busbars.
  • the connecting tab of the lower plate which faces the part that ends, engages in an isolated manner through a cutout in the upper plate, which faces the busbars.
  • connection to the connecting piece can be carried out while largely maintaining the low-stray bundling of the partial cables in the cable bundle.
  • the end of the cable bundle does not have to be unbundled while destroying this optimal, low stray bundling.
  • the known connector ensures the extensive maintenance of stray field poverty by maintaining the original bundling of the partial cables up to the complete cable end, ie up to the connection level in the connection lugs of the two transverse plates.
  • the invention has for its object to provide a further connection element for low stray field connection of stray field poor arranged cables of a direct current cable bundle, which is particularly suitable for connection to independently designed stray field low electrical equipment, in particular to a low stray field busbar unit for a switchgear.
  • connection element contained in claim 1.
  • connection element contained in claim 1.
  • the connecting element according to the invention essentially consists of a preferably cylindrical, elongated connecting tube for carrying the one potential of the direct voltage, and a tube insert held therein via insulating means for carrying the second potential of the direct voltage.
  • the tube insert of the connecting element according to the invention essentially consists of a preferably elongated connecting rail. Connected to these are, on the one hand, connection means for the parts of the equipment carrying the second potential, and furthermore, at the cable-side end, connecting bolts for the partial cables carrying the second potential, radially in a star shape. Finally, isolating means are provided for the electrically isolated mounting of the tube insert in the interior of the preferably cylindrical straight connecting tube.
  • connection element according to the invention has a coaxial structure.
  • the DC voltage potentials of the sub-cables of the cable bundle can not only be removed while maintaining the optimum bundling of the sub-cables with little stray field. Rather, due to the coaxial design, it is also possible to pass on these potentials to the subsequent electrical equipment with little stray field.
  • a particular advantage of the connecting element according to the invention can be seen in the fact that, due to its coaxial design, a largely stray field-poor transfer of the DC voltage potential to stray field-poor electrical equipment is possible.
  • the connecting element according to the invention is thus particularly suitable, e.g. to be coupled to the stray field-poor busbar unit described in German utility model G 90 15 949.7 for a stray field-poor switchgear.
  • connection element shows a preferred embodiment of the connection element according to the invention.
  • 1 shows the connecting pipe 1 and the pipe insert 30 in a plan view.
  • the pipe insert 30 is not shown in the installed state located inside the connecting pipe, but rather separately.
  • FIG. 2 shows a top view of the cable-side end 3 of the embodiment of the connection element corresponding to FIG. 1.
  • the tube insert 30 is in the built-in, i.e. inserted into the interior of the connecting pipe 1.
  • connection element according to the invention shown in FIG. 1, 2 is especially for connection conclusion of a cable bundle consisting of sixteen sub-cables.
  • 3 shows a cross section through such a cable bundle as an example.
  • the respective directions of the partial direct currents in the partial cables are marked with a point or a cross in FIG. If 16 partial cables in accordance with the pattern of FIG. 3 are flowed through by direct currents with corresponding polarity, such a cable bundle has little stray field.
  • the example shown in FIGS. 1, 2 for a connecting element according to the invention is specially designed for connecting a cable bundle according to FIG. 3.
  • the invention is not limited to the stray field-poor connection of a cable bundle consisting of sixteen stray field-poor partial cables.
  • connection element with the design according to the invention can also easily be designed for connecting, for example, cable bundles consisting of 4, 8 or more than 16 partial cables.
  • the basic design of the connection element according to the invention is further explained using the example of a 16-wire bundle with the help of FIG 1, 2.
  • means 4, 5, 6 for connecting the parts of the equipment which carry the first potential.
  • a mounting plate 4 which is preferably welded to the jacket of the connecting pipe 1 and which can be mechanically detached with a first connecting lug 7 of the subsequent electrical equipment, which leads the first DC voltage potential, e.g. can be connected via mounting screw 6.
  • a pressure plate 5 can additionally be placed on the top of the mounting plate 4 e.g. to be riveted.
  • connecting bolts 14 ... 21 for the first direct voltage potential renden partial cable of the cable bundle attached in a ring.
  • FIG 1 In the plan view of FIG 1, only the upper connecting bolts 14, 15, 16, 17 can be seen.
  • FIG. 2 In the top view of the cable-side end 3 according to FIG. 2, all eight ring-shaped connection bolts 14... 21 for the partial cables of the cable bundle carrying the first potential are shown completely with clamping nuts and all washers.
  • the tube insert 30 consists essentially of a connecting rail 31, which is preferably stretched and plate-shaped.
  • the end facing connection means 32 ... 34 are attached for the parts of the equipment carrying the second potential.
  • mounting screws 33 are provided for the detachable connection of the connecting rail 31 with a connecting lugs 9 of the electrical operating means which protrude into the rear opening 2 of the connecting tube 1 and lead to the second polarity.
  • a pressure plate 32 can in turn be placed on the end of the connecting rail 31 e.g. to be riveted.
  • a spacer plate 34 for height compensation is additionally attached in this area.
  • the second terminal lug 9, which carries the second direct voltage potential, of the subsequent electrical equipment projects into the rear receiving opening 2 of the connecting tube 1 at the end on the system side, and is shown in broken lines in the top view of FIG.
  • insulating means are provided, which enable a coaxial, contact-free mounting of the tube insert 30 in the interior of the connecting tube 1.
  • two semicircular holding disks 46, 47 made of insulating material are placed at the cable-side end 3 around the tube insert 30 and inserted into the interior of the connecting tube 1.
  • an additional mounting opening 8 shown in dashed lines in FIG. 1, is provided at the system-side end 2 in the jacket of the connecting pipe 1.
  • the mounting screws 33 are accessible directly from the outside.
  • the mounting opening 8 can be closed off by an additional cover 56 in accordance with the exemplary embodiment shown in FIG.
  • brackets 10 made of insulating material can be attached to the outer jacket of the connecting tube 1 in the interior of control cabinets. These are connected to the wall of the connecting pipe 1 by way of example by means of clamping screws 11.
  • Mounting holes 12 are provided in the brackets 10 made of insulating material, for example, for fastening the connecting element to external structures.
  • any other mounting means acting on the outer surface of the connecting pipe 1 for fastening the connecting element according to the invention e.g. Clamps and the like, applicable.
  • An embodiment of the invention provides an additional, polygonal holding block 36 on the cable-side end 3 of the connecting bar 31 for better mounting of the radially star-shaped connecting bolts 37... 44 for the partial cables carrying the second potential.
  • the holding block 36 in the exemplary embodiment in FIGS. 1, 2 is preferably octagonal. Each side surface of the octagonal holding block thus carries one of the connecting bolts 37 ... 44 for the partial cable carrying the second potential.
  • the cable-side end 2 of the connecting tube 1 has segment-like cutouts 22... 25 distributed over the circumference.
  • a "crown-shaped head region” 13 is thus created.
  • the connecting bolts 37... 44 which are radially star-shaped at the cable-side end 3 of the tube insert 30, are column-shaped for the sub-cables carrying the second potential. This results in a "star-shaped head region" 35.
  • the column-shaped connecting bolts protrude without contact through the segment-like cutouts 22... 25 to the jacket of the connecting pipe 1 when the pipe insert 30 is installed.
  • connection bolts are used for fastening partial cables for the first potential on the outer surface of the connecting pipe and for fastening partial cables for the second potential on the columnar retaining bolts, preferably connected to the inner tube insert 30 via the polygonal holding block 36.
  • the holding bolts 15, 16 and 17, 18 and 19, 20 and 21, 40 lying next to each other in pairs for the annular fastening of partial cables for the first potential.
  • a connecting pin 37 ... 40 for the second potential is formed in a columnar shape and led out through one of the segment-shaped cutouts 22 ... 25 down to the outer surface of the connecting pipe 1.
  • the retaining bolts for the subcables carrying the second potential are alternately attached directly or in a columnar manner to the lead-out on the flat side surfaces of the polygonal holding block at the cable-side end of the connecting rail the outbreaks formed in the outer surface of the connecting pipe.
  • four of the sub-cables are attached to connecting bolts 41 ... 44, which are located directly on four opposite side surfaces of the octagonal holding block 36.
  • This embodiment of the invention has the advantage that cable bundles, which consist of a larger number of partial cables, can be coupled to the coaxial connecting element according to the invention with little stray field.
  • this embodiment is not limited to a cable bundle consisting of sixteen sub-cables. Rather, other, in particular larger numbers of partial cables can also be coupled in accordance with the principle shown here. In the example of FIG. 2, this would have the consequence, for example, that, in particular, the holding block, after a radial increase in circumference, has correspondingly more side surfaces.
  • Another adaptation of the embodiment of FIG 2 to cable bundles with more sub-cables could also consist in the fact that in the axial direction in series with the connecting bolts 41 ... 44 or 37 ... 40 there are further connecting bolts for additional sub-cables. In this embodiment, the axial length of the connecting element would have to be increased slightly while maintaining the cross-sectional area.
  • the connecting bolts for the partial cables carrying the first potential are arranged in a ring on the cable-side end of the connecting tube in such a ring on the outer surface of the connecting tube that partial cables connected thereto are at least partially on the remaining shell segments lie between the cutouts.
  • this has the consequence that, for example, the connecting bolts 15, 16 for two partial cables carrying the first potential are attached to the outer surface of the connecting pipe 1 in such a way that after the associated partial cables have been screwed on, these are connected to the openings 23, 24 remain the remaining shell segment 26 and are supported by this.
  • This embodiment has the particular advantage that, for example, in accordance with the pattern of FIG complete maintenance of their mutual arrangement stray field can be coupled to the connecting bolts at the cable end of the connecting pipe 1 and to the star-shaped end of the pipe insert 30.
  • the stray field-poor, mutual arrangement of the partial cables is thus preserved up to the absolute cable end, ie up to the crown-shaped arrangement of the connecting bolts at the cable-side end of the coaxial connecting element according to the invention.
  • the connecting element according to the invention thus has the particular advantage that it not only enables a low stray field coupling of the partial cables of a cable bundle, but also transmits the DC potentials coaxially, ie stray field poor, to the electrical equipment, and in turn passes stray field poor to the preferably also stray field-poor operating means.
  • connection bolts located in the area of a remaining sheath segment between the cutouts at the cable-side end of the connecting tube on the outer surface of the tube 1 can be increased or decreased. In the example of FIG. 2, this would have the consequence, for example in relation to the casing segment 27, that, for example, only one of the two bolts 15, 16 or more in series than these bolts are provided in this area.
  • connection element shows a plan view of the rear receiving opening 2, i.e. the plant-side end of the connection element.
  • the mounting opening 8 which enables direct access to the bolts or nuts 33 for connecting the second terminal lug 9 of the electrical equipment to the connecting rail 31 of the tube insert 30, is closed with a removable cover 56 in order to maintain the coaxial structure of the overall arrangement is.
  • two additional, slotted holding blocks 48, 49 made of insulating material for fixing the pipe insert in the interior of the connecting pipe 1 are advantageously present in the area of the rear receiving opening 2.
  • additional mounting bolts are guided through the mounting bores 12 in the block-shaped holders 10, which also consist of insulating material, and separate mounting brackets 50 are fastened to them.
  • the mounting plate 4 for contacting the jacket of the connecting pipe 1 with the parts of the equipment carrying the first potential is not directly on the outside of the connecting pipe 1, e.g. welded on. Rather, the mounting plate 4 is preferably mechanically detachably screwed to the outer surface of the connecting pipe 1 via a so-called separating tab 51 and mounting means 50.
  • connection element according to the invention can be de-energized in a simple manner, so that assembly measures, for example on the connection ring 35 according to FIG. 2 above, are possible without risk.
  • FIG. 6 finally shows a plan view of a further embodiment of the connection element. This is extended by an integrated shunt.
  • the embodiment shown in FIG. 6 basically corresponds to the embodiment already described with reference to FIGS. 1 to 3.
  • FIG. 6 shows only some of the partial cables connected to the cable-side end 3 of the radially star-shaped tube insert 30 and carrying the second potential of a cable bundle consisting, for example, of sixteen partial cables.
  • the connecting cables 14... 21 to be attached to the connecting bolts 14... 21 located on the outer surface of the connecting pipe and carrying the first potential are not shown.
  • the coaxial connecting element according to the invention thus has the further advantage that, if necessary, a shunt can be integrated without the overall arrangement and its low stray field structure being impaired in any way by this measure.
  • the shunt can thus be integrated harmonically and without affecting the coaxial shape of the connection element by simple, two-part design of the connection rail in the tube insert 30.

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  • Multi-Conductor Connections (AREA)
  • Patch Boards (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Cable Accessories (AREA)

Claims (6)

  1. Élément de raccordement permettant le raccordement, à faible champ de fuite, de câbles partiels, disposés de manière à présenter un faible champ de fuite, d'un faisceau de câbles (figure 3) véhiculant un courant continu, à des moyens d'exploitation électrique, constitué par
    a) un tube de raccordement (1), sur la surface enveloppe duquel sont disposés, selon une disposition annulaire
    a1) au niveau de l'extrémité (2) située du côté installation, des moyens de raccordement (4...6) pour les parties (7) des moyens d'exploitation, qui appliquent le premier potentiel, et
    a2) sur l'extrémité (3) située du côté du câble, des boulons de raccordement (14...21) pour les câbles partiels appliquant le premier potentiel, et
    b) un insert tubulaire (30) comportant un rail de raccordement (31) et pour lequel sont disposés radialement en étoile
    b1) sur l'extrémité (2) située côté de l'installation, des moyens de raccordement (32...34) pour les parties (9) qui appliquent le second potentiel, des moyens d'exploitation, et
    b2) sur l'extrémité (3) située du côté du câble, des boulons de raccordement (37...44) pour les câbles partiels appliquant le second potentiel, et
    c) des moyens d'isolation (46...49) pour supporter l'insert tubulaire (30) dans le tube de raccordement (1).
  2. Élément de raccordement suivant la revendication 1, caractérisé par le fait que sur l'extrémité (3) située du côté du câble du rail de raccordement (31) est prévu un bloc de support polygonal, de préférence octogonal (36) pour les boulons de raccordement (37...44), disposés radialement en étoile, pour les câbles partiels appliquant le second potentiel.
  3. Élément de raccordement suivant la revendication 1 ou 2, caractérisé par le fait que
    a) l'extrémité (2), située du côté du câble, du tube de raccordement (1) possède des découpes en forme de segments (22...25), qui sont réparties sur la périphérie, et
    b) au moins une partie des boulons de raccordement (37... 40), qui sont disposés radialement en forme d'étoile sur l'extrémité (3), située du côté du câble, de l'insert tubulaire (30), sont réalisés en forme de colonnes et ressortent, sans contact, à travers des découpes en forme de segments (22...25) jusqu'au niveau de l'enveloppe du tube de raccordement (1).
  4. Élément de raccordement suivant les revendications 2 et 3, caractérisé par le fait que les boulons de raccordement (37... 44) pour les câbles partiels appliquant le second potentiel sont disposés alternativement et directement (41...44) sur les surfaces latérales planes du bloc de support polygonal, de préférence octogonal (36) ou sont réalisés (37...40) en forme de colonnes de manière à ressortir à travers les découpes en forme de segments (22...25) ménagées dans le tube de raccordement (1) (figure 2).
  5. Élément de raccordement suivant la revendication 3 ou 4, caractérisé par le fait que les boulons de raccordement (14...21) pour les câbles partiels appliquant le premier potentiel, situés au niveau de l'extrémité (3) du tube de raccordement (1), tournée du côté du câble, sont disposés en anneau sur la surface enveloppe du tube de raccordement (1) de telle sorte que des câbles partiels, qui y sont raccordés, s'appliquent au moins partiellement sur les segments d'enveloppe (26...29) entre les découpes (22...25) (figure 2).
  6. Élément de raccordement suivant l'une des revendications précédentes, caractérisé par le fait que le rail de raccordement de l'insert tubulaire (30) est divisé et qu'une résistance secondaire (54) est insérée dans la fente présente entre les éléments (52,53) du rail de raccordement (figure 6).
EP91107983A 1991-05-16 1991-05-16 Elément de connexion de câble, construction coaxiale, a faible champ de fuit Expired - Lifetime EP0513416B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE59103507T DE59103507D1 (de) 1991-05-16 1991-05-16 Streufeldarmes Kabelanschlusselement in koaxialer Ausführung.
AT91107983T ATE114079T1 (de) 1991-05-16 1991-05-16 Streufeldarmes kabelanschlusselement in koaxialer ausführung.
ES91107983T ES2063400T3 (es) 1991-05-16 1991-05-16 Elemento de conexion de cables pobre en campo de dispersion, en realizacion coaxial.
EP91107983A EP0513416B1 (fr) 1991-05-16 1991-05-16 Elément de connexion de câble, construction coaxiale, a faible champ de fuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91107983A EP0513416B1 (fr) 1991-05-16 1991-05-16 Elément de connexion de câble, construction coaxiale, a faible champ de fuit

Publications (2)

Publication Number Publication Date
EP0513416A1 EP0513416A1 (fr) 1992-11-19
EP0513416B1 true EP0513416B1 (fr) 1994-11-09

Family

ID=8206730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91107983A Expired - Lifetime EP0513416B1 (fr) 1991-05-16 1991-05-16 Elément de connexion de câble, construction coaxiale, a faible champ de fuit

Country Status (4)

Country Link
EP (1) EP0513416B1 (fr)
AT (1) ATE114079T1 (fr)
DE (1) DE59103507D1 (fr)
ES (1) ES2063400T3 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439471A (en) * 1942-08-27 1948-04-13 Square D Co Conductor arrangement for current distribution
FR2348498A1 (fr) * 1976-04-12 1977-11-10 Merlin Gerin Shunt coaxial pour la mesure de fortes intensites de courant
DE2825037C2 (de) * 1978-06-07 1981-10-15 Siemens AG, 1000 Berlin und 8000 München Verbindungsstück zwischen Kabel und Schienen

Also Published As

Publication number Publication date
ES2063400T3 (es) 1995-01-01
DE59103507D1 (de) 1994-12-15
ATE114079T1 (de) 1994-11-15
EP0513416A1 (fr) 1992-11-19

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