EP0231310B1 - Vorgefertigte elektrische anschliessvorrichtung zur verbindung an stromschienen - Google Patents

Vorgefertigte elektrische anschliessvorrichtung zur verbindung an stromschienen Download PDF

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Publication number
EP0231310B1
EP0231310B1 EP86904840A EP86904840A EP0231310B1 EP 0231310 B1 EP0231310 B1 EP 0231310B1 EP 86904840 A EP86904840 A EP 86904840A EP 86904840 A EP86904840 A EP 86904840A EP 0231310 B1 EP0231310 B1 EP 0231310B1
Authority
EP
European Patent Office
Prior art keywords
bars
intermediate connection
bar
connection elements
fixed
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
EP86904840A
Other languages
English (en)
French (fr)
Other versions
EP0231310A1 (de
Inventor
Daniel Jean Chapotier
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.)
FOURNITURES ELECTRO TECHNIQUES
Original Assignee
FOURNITURES ELECTRO TECHNIQUES
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
Priority claimed from FR8511720A external-priority patent/FR2585890B1/fr
Priority claimed from FR8605549A external-priority patent/FR2597675B1/fr
Application filed by FOURNITURES ELECTRO TECHNIQUES filed Critical FOURNITURES ELECTRO TECHNIQUES
Publication of EP0231310A1 publication Critical patent/EP0231310A1/de
Application granted granted Critical
Publication of EP0231310B1 publication Critical patent/EP0231310B1/de
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
    • H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
    • H01R25/161—Details
    • H01R25/162—Electrical connections between or with rails or bus-bars

Definitions

  • the present invention relates to a prefabricated electrical connection device for connection to a busbar.
  • connection devices Is commonly used for the distribution of electrical energy, distribution cabinets containing busbars associated with the respective phases and to which are connected the user devices or ensuring the protections of the divisional circuits.
  • Known connection devices have the drawback that they require long periods of time for connection to a user device and that they entail a high wiring cost.
  • Patent GB-A-1 370 463 describes a set of test terminals formed by a stack of conductive bars separated from each other by layers of insulating material.
  • blind holes making it possible to expose the conductive bars.
  • fuses held in place by boxes each provided with a test terminal.
  • connection device for the conductors of several electrical circuits intended to connect the bars of two busbars separated by air spaces.
  • the present invention aims to remedy the drawbacks of the prior art by providing a connection device of particularly simple structure thanks to which the connection of a user device is considerably simplified and can be carried out in a short period of time.
  • this prefabricated electrical connection device for connection to a set of bars extending parallel to one another is characterized in that the bars which are parallel to one another, separated by air gaps, are located one behind the other. others, in a direction perpendicular to the planes of the bars, intermediate connection members each provided with an external insulating sheath, are fixed respectively to the bars and extend forward, perpendicular to these bars, the bars are pierced with holes aligned through which extend the intermediate connection members fixed, at their rear ends, to the bars situated behind the first bar, so that the front end of the connection member intermediate fixed to the first bar, and the anterior ends of the intermediate connection members fixed to the other bars from the second happen to be all located in front of the first bar, in the same plane perpendicular to the bars.
  • the perforations of the bars are of such a size that the value of the admissible intensity is only very little affected by this passage.
  • the front ends of the intermediate connection members are advantageously located in the same plane parallel to the planes of the bars.
  • the invention also relates to devices for protection against short-circuit currents, in particular in electrical energy distribution installations.
  • the user devices are generally connected to the connection cabinets containing busbars associated with the respective phases of the network, by means of protection devices.
  • the protection devices of the divisional circuits are calculated to provide protection against short-circuit overcurrents generated in the network, for example following an accidental short-circuit caused by the breakdown of a user device, by assimilating the paths of current in the connections of the distribution cabinet to short-circuits without any impedance.
  • protective devices such as circuit breakers must be designed to withstand very large currents, which requires a corresponding dimensioning of the elements which constitute them, in particular conductors and movable members, arc extinguishing means and the like.
  • the electrical connection device of the type defined above in addition to being of a particularly simple construction compared to known connection devices and also simplifies the connection operations between the network and the user devices, has a surprising property.
  • connection device when it is connected between the network and a user device, performs the function of short-circuit current limiter.
  • the invention therefore also relates to an electrical connection device of the type defined above, characterized in that it constitutes an overcurrent limiter.
  • Figure 1 is a side view of an electrical connection device with busbar according to the invention.
  • Figure 2 is a partial elevational view of the connection device of Fig 1, the bars being devoid of the intermediate connection members.
  • Figure 3 is a cross-sectional view, on a larger scale, of a connector of the rapid type.
  • Figure 4 is an elevational view of the connector in Figure 3.
  • FIG. 5 is a plan view of the connector of FIG. 4.
  • FIG. 6 is an electrical diagram showing the function of overcurrent limiter of the electrical connection device according to the invention.
  • the electrical connection device which is shown in Figures 1 and 2, is intended to supply electrical current to any user device which can be connected to a set of vertical busbars in any number, for example three in number. the example described, namely bars 1, 2 and 3.
  • the bars separated by air gaps extend parallel to one another and they are arranged one behind the other, bar 1 being the front bar of the succession of bars.
  • the electrical connection of the bars 1, 2, 3 with any user electrical appliance, not shown, is effected by means of respective intermediate connection members 4, 5 and 6 which extend horizontally, that is to say perpendicularly on the plans of bars 1, 2 and 3.
  • Each intermediate connection member 4, 5, 6 is fixed, at its rear end, to the corresponding bar 1, 2, 3, by means of a screw 7.
  • This screw 7 passes through a hole 8, of small diameter, drilled in the bar and it is screwed dan a thread provided in the rear end of an inner tube 9 of an electrically conductive material, for example brass, of the intermediate connection member.
  • This conductive tube 9 is covered with a barrel of insulating material 11 which constitutes a protective sheath.
  • each of the connection members intermediate 4, 5, 6 carries, at its anterior end, a connection member 12, of any known type, which provides the electrical connection directly upstream of the user device.
  • the first intermediate connection member 4 which is fixed to the first bar or anterior bar 1, extends forward, from the latter, on which it is held blocked by the screw 7.
  • the second intermediate connection member 5 which is integral with the second bar 2 and which is located under the first intermediate connection member 4, also extends forwards and it passes through a hole 13 drilled in the first front bar 1 below the hole 8 for fixing the first intermediate connection member 4.
  • This hole 13 has a larger diameter than that of the hole 8 and it corresponds to the external diameter of the insulating barrel 11.
  • the second intermediate connection member 5 has a length greater than that of the first intermediate connection member 4, by the distance between the first two bars 1,2 so that its anterior end, that is to say its connection member 12 is situated in the vertical plane parallel to the bars 1, 2, 3 passing through the front connecting member 12 of the first intermediate connecting member 4.
  • the third intermediate connecting member 6 which is the lowest, is fixed, at its rear end, to the third bar 3, by means of a screw 7 passing through a hole 8, and it extends to through the first and second bars 1 and 2, passing through holes 13 horizontally aligned with each other and with the hole 8 drilled in the third bar 3.
  • the third intermediate connection member 6 has a length greater than that of the second intermediate member 5 of the distance between the second and third bars 2,3, so that its front connecting member 12 is located below the connecting members 12 of the two other intermediate connecting members 4 and 5 which are located above from him.
  • the three connecting members 12 provided at the front ends of the three intermediate connecting or branching members 4, 5 and 6 are located one above the other, at the front of the device , which allows easy access, for the installation of connection cables.
  • FIGS 3 to 5 illustrate an embodiment of a connector of the rapid type which can be put in place by a shock, by means of a small mallet for example.
  • This connector is suitable for relatively low currents, up to around 60 amps.
  • This connector consists of a brass latch 14 of substantially omega shape, to which a hardened steel clip 15 ensures its pinching effect and gives it its quality of contact.
  • This latch 14 is engaged by pinching on a bar 16 of rectangular cross section.
  • the connector is connected to a flexible wire 17 of appropriate cross section.
  • the connector also comprises an overmolded external part 18 which has an upper surface 19 admitting a racking-in shock.
  • a brass latch 14 has the advantage that it is made in one piece from strip metal and that it only requires shearing, without causing falls. It can thus be obtained in large series with a very low cost.
  • the connector described above allows a reduction considerable wiring time and ensures perfect technology.
  • the conductors 1, 2 and 3 have several series of holes 8, 13 so that the electrical connection device makes it possible to connect the conductors in the form of bars 1 to 3 as many user devices that conductors 1 to 3 have series of holes.
  • the conductors 1 to 3 all similar to the conductor 1, from a conductive bar, made of copper for example in which are drilled holes 8 of small diameter and holes 13 of larger diameter so that 'to a hole 8 of small diameter succeed two holes 13 of larger diameter and to cut the conductors 1 to 3 in the bar so that the first series of holes located at the upper end of the first conductor 1 is formed of a hole 8 of small diameter followed by two holes 13, of larger diameter, the corresponding series of holes of the second conductor 2 being formed of a hole 13 of larger diameter followed by a hole 8 of small diameter and a hole 13 of larger diameter and the corresponding series of holes of the third bar 3 being formed of two holes 13 of larger diameter followed by a hole 8 of small diameter
  • connection device of the invention can thus use for the three conductors 1 to 3 a standard bar which further simplifies the manufacture of the connection device of the invention. Furthermore, such an arrangement makes it possible to connect user devices on either side of the connection device, which may be advantageous for the installation of the equipment to be supplied.
  • the conductors 1, 2 and 3 are bare and arranged at distances such that their mutual insulation is ensured by air without it being necessary to interpose between the conductors of elements of separation of insulating material.
  • connection device according to the invention has good mechanical resistance, in particular to electrodynamic forces in comparison with connection devices of conventional construction.
  • FIG. 6 there is shown the electrical diagram of a supply circuit of a user device connected to the network via an electrical connection device according to the invention.
  • the electrical connection device 20 according to the invention is connected to the three-phase network as described with reference to FIGS. 1 and 2.
  • a user device 21 is connected to the connection device via a circuit breaker 22.
  • the Applicants have found that the device of the invention has a high impedance in the event of a short circuit caused on the user device.
  • connection device 20 was up to four times lower than the short-circuit current of which the circuit would be the seat if a conventional electrical distribution device was used.
  • connection device of the invention which manifests itself during the appearance of transient phenomena such as the production of a short circuit caused by the appearance of an operating anomaly in the user device 21.
  • This increased impedance of the electrical connection device according to the invention is due to the original construction of this device, and probably caused by the crossovers between the connection bars with the network and the intermediate connection members which pass through them.
  • connection device which has just been described opens up very interesting prospects in the field of the reduction of the dimensions of the protection device to be inserted in the circuit of use between the connection device and the or electrical charges connected to the sector through it.
  • the electrical connection device according to the invention provides a significant limitation of the short-circuit currents makes it possible to place between the device and the loads a protection device of reduced power and therefore of lower cost, which makes it possible to considerably reduce the cost price of supply installations.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Claims (7)

  1. Vorgefertigte elektrische Anschlußvorrichtung zur Verbindung an einen Satz Schienen, die parallel zueinander verlaufen, dadurch gekennzeichnet, daß die zueinander parallelen, durch Luftzwischenräume voneinander getrennten Schienen (1, 2, 3) hintereinander und in senkrechter Richtung zur Ebene der Schienen angeordnet sind, sowie dadurch, daß Zwischenverbindungsvorrichtungen (4, 5, 6), von denen jede über eine Isolieraußenleitung (11) verfügt, jeweils an den Schienen (1, 2, 3) befestigt sind und senkrecht zu diesen Schienen (1, 2, 3) verlaufen, daß in die Schienen in einer Reihe ausgerichtete Öffnungen (13) gebohrt sind, durch die die Zwischenverbindungsvorrichtungen (5, 6) führen, die an ihren hinteren Enden an den hinter der ersten Schiene (1) angeordneten Schienen (2, 3) befestigt sind, so daß das vordere Ende (12) der an der ersten Schiene befestigten Zwischenverbindungsvorrichtung (4) und die Vorderenden (12) der von der zweiten Schiene an an den anderen Schienen (2, 3) befestigten Zwischenverbindungsvorrichtungen (5, 6) alle vor der ersten Schiene (1) in der gleichen senkrechten Ebene zu den Schienen sitzen.
  2. Vorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß die vorderen Enden (12) der Zwischenverbindungsvorrichtungen (4, 5, 6) in einer Ebene parallel zur Ebene der Schienen (1, 2, 3) sitzen.
  3. Vorrichtung gemäß Anspruch 2, dadurch gekennzeichnet, daß die Zwischenverbindungsvorrichtungen (4, 5, 6) unterschiedlich lang sind, wobei der Längenunterschied zweier an zwei aufeinanderfolgenden Schienen befestigter Zwischenverbindungsvorrichtungen gleich dem Abstand zwischen diesen Schienen ist.
  4. Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß jede Zwischenverbindungsvorrichtung (4, 5, 6) an ihrem hinteren Ende an der jeweiligen Schiene (1, 2, 3) mit einer Schraube (7) befestigt ist, die durch ein in die Schiene gebohrtes Loch (8) mit kleinem Durchmesser hindurch in ein Gewinde geschraubt wird, das am hinteren Ende eines Innenrohrs (9) aus stromleitendem Material, beispielsweise Messing, der Zwischenverbindungsvorrichtung vorgesehen ist, wobei dieses leitfähige Rohr (9) mit einer Hülse (11) aus Isoliermaterial bedeckt ist, die eine Schutzleitung darstellt.
  5. Vorrichtung gemäß Anspruch 4, dadurch gekennzeichnet, daß jede der Zwischenverbindungsvorrichtungen (4, 5, 6) an ihrem vorderen Ende über eine Anschlußvorrichtung (12) verfügt, die die elektrische Verbindung mit einem zum Benutzergerät führenden Kabel herstellt.
  6. Vorrichtung gemäß eines der Ansprüche 4 und 5, dadurch gekennzeichnet, daß jede Schiene (1, 2, 3) über aufeinanderfolgende Reihen von Bohrungen, bestehend aus einem Loch (8) mit kleinem Durchmesser, gefolgt von genau so vielen Durchgangsbohrungen (13) für die Zwischenverbindungsvorrichtungen wie Schienen, abzüglich einer, verfügt..
  7. Vorgefertigte elektrische Anschlußvorrichtung gemäß einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß sie eine Sicherung gegen Überstromkurzschlüsse darstellt, die in einem über die genannte Vorrichtung an das Versorgungsnetz angeschlossenen Benutzergerät (21) auftreten können.
EP86904840A 1985-07-31 1986-07-31 Vorgefertigte elektrische anschliessvorrichtung zur verbindung an stromschienen Expired - Lifetime EP0231310B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8511720A FR2585890B1 (fr) 1985-07-31 1985-07-31 Dispositif de connexion electrique prefabrique pour liaison sur un jeu de barres
FR8511720 1985-07-31
FR8605549A FR2597675B1 (fr) 1986-04-17 1986-04-17 Dispositif de protection contre les courants de court-circuit.
FR8605549 1986-04-17

Publications (2)

Publication Number Publication Date
EP0231310A1 EP0231310A1 (de) 1987-08-12
EP0231310B1 true EP0231310B1 (de) 1992-07-29

Family

ID=26224649

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86904840A Expired - Lifetime EP0231310B1 (de) 1985-07-31 1986-07-31 Vorgefertigte elektrische anschliessvorrichtung zur verbindung an stromschienen

Country Status (4)

Country Link
US (1) US4815985A (de)
EP (1) EP0231310B1 (de)
DE (1) DE3686249T2 (de)
WO (1) WO1987000979A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5805414A (en) * 1996-03-27 1998-09-08 Siemens Energy & Automation, Inc. Neutral tie bar
DK1330866T3 (en) 2000-11-03 2016-02-29 Smc Electrical Products Inc Inverter for use in an AC drives
US20120255773A1 (en) * 2011-04-06 2012-10-11 Keith Marshall Breakout box
JP2012249472A (ja) * 2011-05-30 2012-12-13 Fujitsu Ltd 電子装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2824901A (en) * 1953-02-02 1958-02-25 Westinghouse Electric Corp Bus duct constructions
US2871285A (en) * 1953-09-04 1959-01-27 Westinghouse Electric Corp Branch bus duct structures
US2946928A (en) * 1957-09-30 1960-07-26 Gen Electric Circuit breaker panelboard
FR1284699A (fr) * 1961-01-07 1962-02-16 Manuf D App Electr Luth Dispositif de connexion pour les conducteurs de plusieurs circuits électriques
US3267336A (en) * 1963-05-27 1966-08-16 Ite Circuit Breaker Ltd Cross bus assembly
GB1143603A (de) * 1966-04-14
GB1370463A (en) * 1972-06-29 1974-10-16 British Insulated Callenders Test terminals

Also Published As

Publication number Publication date
DE3686249T2 (de) 1993-03-11
EP0231310A1 (de) 1987-08-12
US4815985A (en) 1989-03-28
WO1987000979A1 (fr) 1987-02-12
DE3686249D1 (de) 1992-09-03

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