EP1026793B1 - Verbindungsanordnung für einen Schutzschalter - Google Patents

Verbindungsanordnung für einen Schutzschalter Download PDF

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Publication number
EP1026793B1
EP1026793B1 EP20000410002 EP00410002A EP1026793B1 EP 1026793 B1 EP1026793 B1 EP 1026793B1 EP 20000410002 EP20000410002 EP 20000410002 EP 00410002 A EP00410002 A EP 00410002A EP 1026793 B1 EP1026793 B1 EP 1026793B1
Authority
EP
European Patent Office
Prior art keywords
connector
error prevention
plug
socket
connectors
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
EP20000410002
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English (en)
French (fr)
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EP1026793A1 (de
Inventor
Henri Bellotto
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.)
Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP1026793A1 publication Critical patent/EP1026793A1/de
Application granted granted Critical
Publication of EP1026793B1 publication Critical patent/EP1026793B1/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
    • H01R29/00—Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series-parallel selection, programmable connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64—Means for preventing incorrect coupling
    • H01R13/642—Means for preventing incorrect coupling by position or shape of contact members

Definitions

  • the invention relates to a multipole circuit breaker for protecting a multiphase electrical network with a neutral, provided with an electronic release and at least one measuring aid associated with each pole and electrically connected to the release.
  • the invention more particularly relates to a connection assembly, connecting said measurement auxiliaries to the trigger.
  • the line associated with the neutral may be arranged to the right or left of the lines associated with the phases.
  • the pole associated with the neutral can also be disposed to the left or right of the poles of the circuit breaker associated with the phases.
  • the trigger comprises inputs associated respectively to each of the phases and specific inputs dedicated to the neutral, for the connection of the trigger with auxiliary measurement of the electrical parameters - voltage and current intensity - of the various poles.
  • the electrical connection between the measuring auxiliaries, which are usually located inside the circuit breaker box, and the associated inputs of the trip unit must take these variants into account.
  • connection assembly comprising a fixed socket provided with two neutral terminals, disposed on either side of a number p of phase terminals, and a mobile socket having a number p + 1 of terminals.
  • a connection assembly comprising a fixed socket provided with two neutral terminals, disposed on either side of a number p of phase terminals, and a mobile socket having a number p + 1 of terminals.
  • simply plug the mobile socket on the left or right side of the fixed socket simply plug the mobile socket on the left or right side of the fixed socket.
  • such a provision implies the existence of two neutral terminals, resulting in a bulk and a non-optimized price.
  • the invention aims to reduce the cost and bulk of a connection of this type.
  • connection assembly for a multipole circuit breaker protection of a polyphase electrical network with neutral having a number p + 1 poles, an electronic trigger, and at least one measuring aid associated with each pole and electrically connected to the release
  • the connection assembly comprising a fixed electrical outlet having a number p of phase connectors and a neutral connector, for being respectively connected to the phase and neutral inputs of the trigger
  • the assembly comprising in addition, a movable electrical plug, pluggable into the fixed socket, comprising a number p + 1 of connectors each intended to be connected to one of the electrical measurement auxiliaries, the movable plug having a configuration such that it can be plugged into the fixed socket in a first angular position, and in a second angular position obtained by rotation of an angle 2 ⁇ k ⁇ / p + 1 relative to the first, where k is a predefined integer less than or equal to p.
  • the differentiation between circuit breakers having the neutral pole right or left can be done very late, at the distributor rather than the production center.
  • the sockets used have the same number of connectors as the standard sockets. It follows that they are optimized both from the point of view of the size and the point of view of the cost.
  • the invention takes all its interest when the number p is greater than or equal to 3. In practice, the number p is equal to 3.
  • the number k is equal to 1.
  • other configurations are possible and may allow a better differentiation between the two useful positions, especially when the number p is large.
  • the assembly is provided with coding means prohibiting the plugging of the mobile plug into the fixed socket in a position other than the first and second angular positions. This avoids positioning errors.
  • each connector requires only one terminal.
  • the measuring aid is then reduced to a simple electrical connection bypass between the line and the corresponding connector of the mobile socket.
  • each connector advantageously comprises two terminals.
  • the auxiliaries can then be, conventionally, current transformers arranged in the circuit breaker housing.
  • the invention also relates to a multipole circuit breaker for protecting a polyphase electrical network with a neutral, comprising a number p + 1 of poles, an electronic trip device, at least one measurement aid associated with each pole, and at least one set connection as previously described, connecting said measurement auxiliaries to the trigger.
  • a three-phase electrical network (L 1 , L 2 , L 3 , L 4 ) with a neutral is protected by a circuit breaker 1.
  • the circuit breaker conventionally comprises a number p of poles associated with the p phases of the network and a pole associated with the neutral, c in the case of a three-phase network with neutral, four poles constituting a set of contacts 2 controlled by an electronic release 4, via a control relay 6.
  • the circuit breaker comprises current transformers A 1 , A 2 , A 3 and A 4 , for providing the trigger 4 a current measurement respectively in the lines L 1 , L 2 , L 3 and L 4 of the network. It further comprises electrical branching connections B 1 , B 2 , B 3 , B 4 for transmitting to the trigger the voltages of lines L 1 , L 2 , L 3 and L 4 .
  • the pole associated with the neutral may be disposed to the left or right of the poles of the circuit breaker associated with the phases.
  • the line L 1 corresponds to the neutral and the lines L 2 to L 4 to the phases X, Y and Z.
  • the neutral is on the line L 4 and the phases X, Y and Z on lines L 1 to L 3 .
  • the trip unit comprises phase inputs E X , E Y , E Z and neutral E N respectively associated with each of the phases and with the neutral for measuring currents. Likewise, it comprises phase inputs V X , V Y , V Z and neutral V N associated with each of the phases and with the neutral for the measurement of the voltages.
  • the connection between the current transformers A 1 to A 4 , arranged in the corresponding poles of the circuit breaker on the one hand, and the associated inputs of the trigger, on the other hand, must take these variants into account. Similarly, the connection between the voltage branches B 1 to B 4 and the trigger must be adapted.
  • the invention relates alternately or cumulatively to a connection assembly between the current transformers A 1 to A 4 and the trip device and the voltage connection assembly between the branches B 1 , B 2 , B 3 , B 4 and the trip unit.
  • the voltage connection assembly comprises a mobile plug C and a fixed plug D.
  • the movable receptacle comprises four single-pin connectors C 1 , C 2 , C 3 and C 4 corresponding respectively to the lines L 1 , L 2 , L 3 and L 4 , each arranged in an angular sector of 90 ° defined by relative to a pivot axis 8 of the socket.
  • the fixed plug D comprises in turn four pin connectors D X , D Y , D Z connected to the phase inputs V X , V Y , and V Z , and a neutral connector D N connected to the neutral input V N.
  • the two connectors D X and D Z have a foolproof outline 12, 11 while the other two connectors have a square outline 9, 10.
  • the connectors C 1 and C 2 of the mobile socket have a contour of additional coding 16, 13 of that of the connector D X.
  • the connector C 3 and the connector C 4 of the mobile socket comprise a complementary contour 14, 15 of that of the connector D Z.
  • the keying shapes present on the connectors D Z and D X can only cooperate with their respective complementary coding shape, so that it is not possible to plug the connectors C 3 or C 4 into the connector D X and it is not possible to plug the connectors C 1 or C 2 into the connector D Z.
  • the lines L 1 to L 4 are wired on the connectors C 1 to C 4 of the mobile socket. If the line L 1 is the neutral, then the mobile socket is plugged into the fixed socket in the position corresponding to the plugging of the connector C 1 of the mobile socket in the connector D N of the fixed socket. If on the other hand the neutral is on the line L 4 , then the movable plug is plugged into its other possible angular position, corresponding to the plugging of the connector C 4 in the neutral connector D N.
  • connection assembly according to the same principle is described for the connection of the current transformers A 1 , A 2 , A 3 and A 4 to the trip unit 4.
  • This embodiment differs mainly from the previous one on the one hand by the number of terminals each connector, and secondly by the keying device. To make the connection of each current transformer, two terminals are indeed necessary. As a result, each connector D ' X , D' Y , D ' Z , D' N of the fixed socket of the figure 7 has two terminals 16. Similarly, each connector C ' 1 , C' 2 , C ' 3 , C' 4 of the mobile socket of the figure 6 has two terminals 18.
  • the keying of the plug is made not at the connectors, but on the external side edges of the mobile and fixed jacks.
  • the fixed plug D ' has a protruding flange, which comprises a keying flange 20.
  • the movable plug comprises two complementary keying angles 22, 24 allowing plugging in two positions and only two, relative to the fixed socket.
  • the keying may comprise both forms of keying on the connectors and on the outer periphery of the socket.
  • the invention is also applicable in multiphase networks having more than four lines (p> 3).
  • the two connectors C 1 and C 4 corresponding to lines L 1 and L 4 may be dedicated to neutral, are not necessarily adjacent. It is indeed perfectly possible to distribute them in opposition on either side of the axis 8 so that one goes from the first to the second authorized connection position by pivoting 180 °. It is also possible to use the voltage circuit connection assembly described above with the connection set of the current measuring circuit described in the document. FR-A-2,739,973 .

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Breakers (AREA)

Claims (8)

  1. Verbindungssystem für einen Mehrpol-Leistungsschalter (1) zum Schutz eines elektrischen Mehrphasennetzes mit Neutralleiter, welcher Schalter eine Anzahl von p+1 Polen, einen elektronischen Auslöser (4) und mindestens eine, jedem Pol zugeordnete und elektrisch mit dem Auslöser verbundene Messeinrichtung (A1, A2, A3, A4 ; B1, B2, B3, B4) umfasst, welches Verbindungssystem
    • eine ortsfeste Steckbuchse (D, D') mit einer Anzahl von p Phasenverbindern (DX, DY, DZ; D'X, D'Y, D'Z) und einem Neutralleiterverbinder (DN ; D'N) zum Anschluss an die Phaseneingänge (VX, VY, VZ; EX, EY, EZ) bzw. den Neutralleitereingang (EN) des Auslösers sowie
    • einen abnehmbaren Stecker (C, C') umfasst, der in die ortsfeste Steckbuchse eingesteckt werden kann und eine Anzahl von p+1 Verbindern (cm, C2, C3, C4; C'1, C'2, C'3, C'4) zum Anschluss an jeweils eine der elektrischen Messeinrichtungen (B1, B2, B3, B4 ; A1, A2, A3, A4) umfasst,
    dadurch gekennzeichnet, dass der abnehmbare Stecker (C, C') so ausgebildet ist, dass er in einer ersten Winkelstellung sowie in einer zweiten Winkelstellung, welche sich durch Drehung des Steckers um einen Winkel von 2kπ / p+1 in Bezug zur ersten Winkelstellung ergibt, in die ortsfeste Steckbuchse (D, D') eingesteckt werden kann, wobei k ein festgelegter ganzzahliger Wert kleiner oder gleich p ist und Verwechslungsschutzmittel das Einstecken des abnehmbaren Steckers in die ortsfeste Steckbuchse in einer anderen als der ersten oder der zweiten Winkelstellung verhindern.
  2. Verbindungssystem nach Anspruch 1, dadurch gekennzeichnet, dass p größer oder gleich 3 ist.
  3. Verbindungssystem nach Anspruch 2, dadurch gekennzeichnet, dass p gleich 3 ist.
  4. Verbindungssystem nach Anspruch 1, dadurch gekennzeichnet, dass k gleich 1 ist.
  5. Verbindungssystem nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass
    • mindestens einer der Verbinder (DX, DZ) einer der Steckbuchsen, welcher als Verwechslungsschutzverbinder bezeichnet wird, eine Verwechslungsschutzform (12, 11) aufweist,
    • die Verbinder des zugeordneten Steckers
    • einen ersten, angepassten Verwechslungsschutzverbinder (C1; C3) umfassen, der dazu dient, in der ersten Winkelstellung in den Verwechslungsschutzverbinder (DX ; DZ) eingesteckt zu werden und der eine angepasste Verwechslungsschutzform (16 ;14) aufweist, derart, dass er in der ersten Winkelstellung in den Verwechslungsschutzverbinder (DX ; DZ) eingesteckt werden kann,
    • sowie einen zweiten, angepassten Verwechslungsschutzverbinder (C2; C4) umfassen, der dazu dient in der zweiten Winkelstellung in den Verwechslungsschutzverbinder (DX ; DZ) eingesteckt zu werden, und der eine angepasste Verwechslungsschutzform (13 ;15) aufweist, derart, dass er in der zweiten Winkelstellung in den genannten Verwechslungsschutzverbinder (Dx; Dz) eingesteckt werden kann,
    und die p-1 übrigen Verbinder (C3, C4 ; C1, C2) des zugeordneten Steckers eine Form (14, 15 ;16, 13) aufweisen, die von der Verwechslungsschutzform abweicht, so dass sie nicht in den Verwechslungsschutzverbinder (DX ; DZ) eingesteckt werden können.
  6. Verbindungssystem nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jeder Verbinder (C1, C2, C3, C4 ; D1 , D2, D3, D4) eine Klemme aufweist und die Messeinrichtungen als parallele Stromverbindungen (B1, B2, B3, B4) ausgebildet sind.
  7. Verbindungssystem nach irgendeinem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass jeder Verbinder (C1, C2, C3, C4 ; D1, D2, D3, D4) zwei Klemmen aufweist und die Messeinrichtungen als Stromwandler (A1, A2, A3, A4) ausgebildet sind.
  8. Mehrpol-Leistungsschalter (1) zum Schutz eines elektrischen Mehrphasennetzes mit Neutralleiter, welcher Schalter eine Anzahl von p+1 Polen, einen elektronischen Auslöser (2), mindestens eine, jedem Pol zugeordnete und Messeinrichtung (A1, A2, A3, A4 ; B1' B2, B3, B4) sowie mindestens ein Verbindungssystem nach irgendeinem der Ansprüche 1 bis 7 umfasst, das die genannten Messeinrichtungen mit dem Auslöser (2) verbindet.
EP20000410002 1999-02-05 2000-01-17 Verbindungsanordnung für einen Schutzschalter Expired - Lifetime EP1026793B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9901525A FR2789524B1 (fr) 1999-02-05 1999-02-05 Ensemble de connexion pour un disjoncteur
FR9901525 1999-02-05

Publications (2)

Publication Number Publication Date
EP1026793A1 EP1026793A1 (de) 2000-08-09
EP1026793B1 true EP1026793B1 (de) 2008-11-05

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EP20000410002 Expired - Lifetime EP1026793B1 (de) 1999-02-05 2000-01-17 Verbindungsanordnung für einen Schutzschalter

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EP (1) EP1026793B1 (de)
DE (1) DE60040702D1 (de)
FR (1) FR2789524B1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI112728B (fi) * 2002-08-12 2003-12-31 Ensto Busch Jaeger Oy Pistorasia

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258969A (en) * 1979-11-19 1981-03-31 Stallard Jerrel L Reversing plug connector
DE3030906C2 (de) * 1980-08-14 1983-08-25 Siemens AG, 1000 Berlin und 8000 München Umschaltsteckvorrichtung mit einem Brückenstecker
FR2739973B1 (fr) * 1995-10-11 1997-12-05 Schneider Electric Sa Ensemble de connexion

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EP1026793A1 (de) 2000-08-09
DE60040702D1 (de) 2008-12-18
FR2789524A1 (fr) 2000-08-11
FR2789524B1 (fr) 2001-03-16

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