EP1304772B1 - Connecteur pour système de distribution moyenne tension - Google Patents

Connecteur pour système de distribution moyenne tension Download PDF

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Publication number
EP1304772B1
EP1304772B1 EP02018192A EP02018192A EP1304772B1 EP 1304772 B1 EP1304772 B1 EP 1304772B1 EP 02018192 A EP02018192 A EP 02018192A EP 02018192 A EP02018192 A EP 02018192A EP 1304772 B1 EP1304772 B1 EP 1304772B1
Authority
EP
European Patent Office
Prior art keywords
contact
cable
cage
cable connector
inner conductor
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
EP02018192A
Other languages
German (de)
English (en)
Other versions
EP1304772A3 (fr
EP1304772A2 (fr
Inventor
Siegfried Dr.-Ing. Ruhland
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.)
Grid Solutions SAS
Original Assignee
Alstom 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 Alstom SA filed Critical Alstom SA
Publication of EP1304772A2 publication Critical patent/EP1304772A2/fr
Publication of EP1304772A3 publication Critical patent/EP1304772A3/fr
Application granted granted Critical
Publication of EP1304772B1 publication Critical patent/EP1304772B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
    • H01R25/142—Their counterparts

Definitions

  • the invention is based on a cable connection part for a medium-voltage switchgear, with which a conductor of the medium-voltage switchgear can be connected to a cable.
  • Document FR-A-2 774 814 discloses a cable connector according to the preamble of claim 1.
  • the object of the invention is to provide a cable connection part, which requires less installation effort and less isolation effort.
  • the invention thus provides no more screw. Instead, according to the invention, there is a contact system in which the cable inner conductor of the cable to be connected to the conductor can be inserted.
  • the contact system is designed such that the cable is fixed in the radial and in the axial direction.
  • the invention opens up the possibility of accommodating the contact system of the cable connection part in a simple manner within an insulating body.
  • the current-carrying components are arranged within the insulating body, so that further insulation, for example by means of phase barriers or the like is no longer required.
  • the contact system on a contact part with therein contact springs wherein a contact cage on the free End of the cable inner conductor can be plugged and wherein the cable inner conductor with the contact cage between the contact springs of the contact system can be inserted.
  • the contact cage thus forms a connection with the contact springs, with which the radial and axial fixation of the cable inner conductor within the contact system is achieved.
  • the contact cage has an outwardly projecting part. This part then comes into operative contact with the contact springs in such a way that, in particular, the axial fixation of the cable inner conductor within the contact system is further improved.
  • the contact cage on a plurality of segments which can be held together by means of a rotating spring and thus can be plugged onto the cable inner conductor.
  • FIG. 1 shows a cable connection part 1 with which a conductor L is connected to a cable K. can.
  • the cable connection part 1 is formed substantially rotationally symmetrical.
  • the cable connection part 1 has a fixed contact 2, which is firmly connected to the conductor L, for example, welded. With the fixed contact 2, a contact system 3 is firmly connected, which will be explained in more detail in connection with the figure 2.
  • the fixed contact 2 and the contact system 3 are cast in an insulating body 4.
  • the insulating body may for example consist of silicone or EPDM (ethylene-propylene sealing material).
  • the insulating body 4 is cup-shaped, which should be indicated in the figure 1 with the aid of the dashed line.
  • the cable K can be introduced.
  • the cable K consists of a cable inner conductor 5, a main insulation 6 arranged above it and a cable insulation 7 arranged again above it.
  • one or more potential controls 8 and one or more capacitive conductive linings 9 are further cast or cast. Over or over the capacitive Leitbeläge 9, the Jardinan gleichteil 1 are connected via a capacitance to ground. A voltage test system or voltage indication system can be connected to the capacitance.
  • the cable connection part 1 can be designed multipolar. In this case, several, in particular up to four cables per phase may be present.
  • the contact system 3 is shown in more detail.
  • the contact system 3 a contact part 10 which is fixedly connected to the fixed contact 2, for example, welded.
  • the contact part 10 is cup-shaped and consists of an electrically conductive material.
  • contact springs 11 are arranged in the interior of the contact part 10, on the circumferential inner wall of the contact part 10. There are a plurality of such contact springs 11 along the circumference of the contact part 10.
  • the contact springs 11 are made of an electrically conductive material.
  • the contact springs 11 can be firmly connected to the contact part 10, in particular welded.
  • the cable inner conductor 5 is shown enlarged.
  • annular contact cage 12 is attached on the free end of the cable inner conductor 5.
  • the inner diameter of the contact cage 12 substantially corresponds to the outer diameter of the inner cable conductor 5.
  • the outer diameter of the contact cage 12 is adapted to the inner diameter of the contact part 10 and in particular to the inner diameter of the contact springs 11.
  • the contact cage 12 may be composed of a plurality of segments. In this case, the segments of the contact cage 12 are held together by means of a circumferential, annular spring 13.
  • the contact cage 12 or its segments and, if present, the spring 13 are made of an electrically conductive material.
  • the cable insulation 7 is first removed from the cable K.
  • the distance of the cable insulation 7 is made such that the cable insulation 7 extends into the interior of the insulating body 4, when the cable K is inserted into the insulating body 4.
  • the main insulation 6 of the cable K is removed such that the cable inner conductor 5 is inserted into the contact system 3 or can be inserted.
  • the contact cage 12 is optionally attached with the aid of the spring 13 on the free end of the cable inner conductor 5.
  • the cable inner conductor 5 together with the attached contact cage 12 is then inserted into the interior of the insulating body 4.
  • the cable inner conductor 5 is inserted with the attached contact cage 12 in the interior of the contact part 10 and inserted between the springs 11 in the contact system 3.
  • a conductive connection is formed between the conductor L and the cable inner conductor 5 of the cable K.
  • the cable inner conductor 5 is within the contact system 3 and thus fixed within the cable connection part 1 in the radial direction.
  • the contact cage 12 has an L-shaped configuration in cross-section. In this case, the outwardly projecting part of the contact cage 12 constitutes a further fixation of the contact inner conductor 5 within the contact system 3 in the axial direction.
  • the contact cage 12 may further be provided to compensate for differences in the outer diameter of the inner cable conductor 5 and the inner diameter of the contact springs 11. For this purpose, it is on the one hand possible to adapt the width of the contact cage 12 in the radial direction to the outer diameter of the cable inner conductor 5. If the contact cage 12 consists of a plurality of segments, such an adjustment can be made by a different number of segments and their attachment to the free end of the cable inner conductor 5 by means of the spring 13.
  • Another measure for fixing the cable K within the interior of the cable connection part 1 may be, for example, Schlstecken annular insulation spacers on the main insulation 6 and / or the cable insulation 7, whose outer diameter substantially coincides with the inner diameter of the insulating body 4.
  • the described cable termination part 1 is designed to be used for rated operational current, short-circuit current and surge short-circuit current up to the values of 2500 A, 50 kA (3 s) and 125 kA.
  • the cable connection part 1 is so far preferably suitable for the connection of a circuit breaker of a medium voltage switchgear with a medium voltage cable.
  • the voltage in such a medium-voltage switchgear is usually greater than 1 kilovolt and less than or equal to 52 kilovolts.

Landscapes

  • Cable Accessories (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Communication Cables (AREA)
  • Gas-Insulated Switchgears (AREA)

Claims (8)

  1. Pièce de raccord de câble (1) pour une installation de distribution moyenne tension, par laquelle il est possible de raccorder un conducteur (L) de l'installation de distribution moyenne tension à un câble (K), caractérisée en ce que le conducteur (L) est raccordé à un système de contact (3), en ce que le système de contact (3) présente une pièce de contact (10) avec à l'intérieur des ressorts de contact (11), en ce qu'une cage de contact (12) peut être montée directement sur l'extrémité libre d'un conducteur intérieur (5) du câble (K), en ce que le conducteur intérieur de câble (5) peut être enfiché avec la cage de contact (12) entre les ressorts de contact (11) du système de contact (3), et en ce que, dans l'état monté, le câble (K) est fixé avec la cage de contact (12) dans le système de contact (10) dans le sens radial et axial.
  2. Pièce de raccord de câble (1) selon la revendication 1, caractérisée en ce qu'il est agencé une pluralité de ressorts de contact (11) sur le pourtour de la paroi intérieure de la pièce de contact (10) réalisée en forme de pot.
  3. Pièce de raccord de câble (1) selon l'une des revendications 1 ou 2, caractérisée en ce que la cage de contact (12) présente une pluralité de segments, lesquels peuvent être maintenus ensemble à l'aide d'un ressort rotatif (13) et ainsi être montés sur le conducteur intérieur de câble (5) .
  4. Pièce de raccord de câble (1) selon l'une des revendications 1 à 3, caractérisée en ce que la cage de contact (12) présente une partie s'éloignant vers l'extérieur.
  5. Pièce de raccord de câble (1) selon l'une des revendications précédentes, caractérisée en ce qu'il est prévu un corps isolant (4), dans lequel est inséré le système de contact (3) et lequel entoure le câble (K) enfiché dans le système de contact (3).
  6. Pièce de raccord de câble (1) selon la revendication 5, caractérisée en ce que le corps isolant (4) est muni d'un dispositif antieffluves (8) et/ou d'une armature conductrice capacitive (9).
  7. Pièce de raccord de câble (1) selon l'une des revendications précédentes, caractérisée en ce que les composants conducteurs sont prévus pour un courant de service assigné de 2500 A, pour un courant de court-circuit de 50 kA sur 3 secondes et pour un courant maximal asymétrique de court-circuit de 125 kA.
  8. Installation de distribution moyenne tension, caractérisée par une pièce de raccord de câbles (1) selon l'une des revendications précédentes.
EP02018192A 2001-10-20 2002-08-20 Connecteur pour système de distribution moyenne tension Expired - Lifetime EP1304772B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10151884A DE10151884A1 (de) 2001-10-20 2001-10-20 Kabelanschlussteil für eine Mittelspannungsschaltanlage
DE10151884 2001-10-20

Publications (3)

Publication Number Publication Date
EP1304772A2 EP1304772A2 (fr) 2003-04-23
EP1304772A3 EP1304772A3 (fr) 2004-01-02
EP1304772B1 true EP1304772B1 (fr) 2006-03-08

Family

ID=7703194

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02018192A Expired - Lifetime EP1304772B1 (fr) 2001-10-20 2002-08-20 Connecteur pour système de distribution moyenne tension

Country Status (5)

Country Link
EP (1) EP1304772B1 (fr)
AT (1) ATE320093T1 (fr)
DE (2) DE10151884A1 (fr)
ES (1) ES2259060T3 (fr)
PT (1) PT1304772E (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2263060C3 (de) * 1972-12-22 1975-12-11 Kathrein-Werke Kg, 8200 Rosenheim Spannhülsen
US3912352A (en) * 1973-04-09 1975-10-14 Joseph D Kinnear Rotary electrical coupling
US3867602A (en) * 1973-10-25 1975-02-18 Mc Graw Edison Co Contact cluster for arcing and current carrying means in a circuit breaker
DE3110660C2 (de) * 1981-03-19 1983-07-14 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart Garnitur für das Ende eines Mittelspannnungs- oder Hochspannunskabels
DE3326386A1 (de) * 1983-07-22 1985-01-31 Kabel- Und Lackdrahtfabriken Gmbh, 6800 Mannheim Vorgefertigter muffenkoerper
DE4135390C1 (en) * 1991-10-26 1993-04-01 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart, De Current connecting plug for power supply - has rotatable fixing ring on housing allowing connection to housing of cooperating socket
FR2774814B1 (fr) * 1998-02-09 2000-03-31 Telecommunications Sa Dispositif de connexion encliquetable pour extremite de cable electrique

Also Published As

Publication number Publication date
EP1304772A3 (fr) 2004-01-02
EP1304772A2 (fr) 2003-04-23
DE50205992D1 (de) 2006-05-04
PT1304772E (pt) 2006-05-31
DE10151884A1 (de) 2003-04-30
ATE320093T1 (de) 2006-03-15
ES2259060T3 (es) 2006-09-16

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