EP1026793A1 - Verbindungsanordnung für einen Schutzschalter - Google Patents

Verbindungsanordnung für einen Schutzschalter Download PDF

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Publication number
EP1026793A1
EP1026793A1 EP00410002A EP00410002A EP1026793A1 EP 1026793 A1 EP1026793 A1 EP 1026793A1 EP 00410002 A EP00410002 A EP 00410002A EP 00410002 A EP00410002 A EP 00410002A EP 1026793 A1 EP1026793 A1 EP 1026793A1
Authority
EP
European Patent Office
Prior art keywords
connector
socket
polarization
connectors
neutral
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
EP00410002A
Other languages
English (en)
French (fr)
Other versions
EP1026793B1 (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
Original Assignee
Schneider Electric Industries SAS
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 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 an electrical network. multiphase with neutral, provided with an electronic trip device and at least one measuring aid associated with each pole and electrically connected to the release.
  • the invention relates more particularly to a connection assembly, connecting said auxiliary measures to the trigger.
  • the line associated with the neutral may be arranged at right or left of the lines associated with the phases.
  • the pole associated with neutral can also be placed to the left or right of the circuit breaker poles associated with the phases.
  • the trigger has associated inputs respectively to each of the phases and specific inputs dedicated to neutral, intended for linking the trip unit with auxiliary parameters electrical - voltage and current intensity - of the different poles.
  • the electrical connection between the measurement aids, which are usually found inside the housing of the circuit breaker, and the associated trip unit inputs, must take these variants into account.
  • Document FR-A-2 739 973 has already proposed a connection assembly comprising a fixed socket provided with two neutral terminals, arranged on the side and other of a number p of phase terminals, and a mobile outlet comprising a number p + 1 of bounds.
  • a connection assembly comprising a fixed socket provided with two neutral terminals, arranged on the side and other of a number p of phase terminals, and a mobile outlet comprising a number p + 1 of bounds.
  • simply plug the mobile socket on the left side or the right side of the fixed socket simply plug the mobile socket on the left side or the right side of the fixed socket.
  • such a provision implies the existence of two neutral terminals, resulting in space and a price not optimized.
  • the invention aims to reduce the cost and size of a connection of this type.
  • connection set for a multipolar circuit breaker for the protection of a polyphase electrical network with neutral comprising a number p + 1 of poles, an electronic trip device, and at least one measurement auxiliary associated with each pole. and electrically connected to the release, the connection assembly comprising a fixed electrical outlet comprising a number p of phase connectors and a neutral connector, intended to be connected respectively to phase and neutral inputs of the release, the assembly comprising also a mobile electrical outlet, pluggable into the fixed outlet, comprising a number p + 1 of connectors intended to be each connected to one of the electrical measurement auxiliaries, the mobile outlet having a configuration such that it can be inserted into the outlet fixed in a first angular position, and in a second angular position obtained by rotation of an angle 2k ⁇ / p + 1 with respect to the first, where k is a predefined integer less than or equal to p.
  • the differentiation between the circuit breakers having the neutral pole on the right or on the left can be done very late, at the distributor rather than at the center of production.
  • 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 bulk only from a cost perspective.
  • the invention takes its full interest when the number p is greater than or equal to 3. In practical, the number p is equal to 3.
  • the number k is equal to 1.
  • other configurations are possible and can allow a better differentiation between the two positions useful, especially when the number p is large.
  • the assembly is provided with polarizing means preventing inserting the mobile plug into the fixed socket in a position other than the first and the second angular positions. This avoids positioning errors.
  • each connector requires only one terminal. The measuring aid is then reduced to one simple electrical bypass connection between the line and the corresponding connector of the mobile socket.
  • each the connector advantageously has two terminals.
  • the auxiliaries can then be, conventionally, current transformers arranged in the housing of the circuit breaker.
  • the invention also relates to a multipolar circuit breaker for protecting a network.
  • polyphase electric with neutral with a number p + 1 of poles, a trigger electronics, at least one measurement aid associated with each pole, and at least one connection assembly as described above, connecting said auxiliary trigger measures.
  • a three-phase electrical network (L 1 , L 2 , L 3 , L 4 ) with 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 neutral, ie in the case of a three-phase network with neutral, four poles constituting a set of contacts 2 controlled by an electronic trip device 4, via a control relay 6.
  • the circuit breaker comprises current transformers A 1 , A 2 , A 3 and A 4 , intended to supply the trip unit 4 with a measurement of the current respectively in the lines L 1 , L 2 , L 3 and L 4 of the network. It further comprises electrical bypass connections B 1 , B 2 , B 3 , B 4 making it possible to transmit the voltages of the lines L 1 , L 2 , L 3 and L 4 to the trip device.
  • the pole associated with neutral can be placed 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 has phase inputs E X , E Y , E Z and neutral E N associated respectively with each of the phases and with neutral for current measurement. Likewise, it includes phase inputs V X , V Y , V Z and neutral V N associated with each of the phases and with neutral for measuring 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 trip unit on the other hand, must take these variants into account. Likewise, the connection between the voltage branches B 1 to B 4 and the trip device must be adapted.
  • the invention relates alternatively 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 device.
  • the voltage connection assembly comprises a mobile socket C and a fixed socket D.
  • the mobile socket has four connectors C 1 , C 2 , C 3 and C 4 with a single pin, corresponding respectively to lines L 1 , L 2 , L 3 and L 4 , and each arranged in an angular sector of 90 ° defined with respect to a pivot axis 8 of the socket.
  • the fixed socket D has four connectors with one pin 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 keying contour 12, 11 while the other two connectors have a square contour 9, 10.
  • the connectors C 1 and C 2 of the mobile socket have a keying contour complementary 16, 13 to that of connector D X.
  • the connector C 3 and the connector C 4 of the mobile socket have a complementary contour 14, 15 to that of the connector D Z.
  • the polarization forms present on the connectors D Z and D X can only cooperate with their respective complementary polarization form, so that it is not possible to insert the connectors C 3 or C 4 in the connector D X and that it is not possible to insert connectors C 1 or C 2 in connector D Z.
  • Lines L 1 to L 4 are wired to connectors C 1 to C 4 of the mobile socket. If the line L 1 is neutral, then the mobile plug is inserted into the fixed socket in the position corresponding to the insertion of the connector C 1 of the mobile socket into the connector D N of the fixed socket. If, on the other hand, the neutral is on line L 4 , then the movable plug is inserted in its other possible angular position, corresponding to the insertion of the connector C 4 into the neutral connector D N.
  • each connector D ' X , D' Y , D ' Z , D' N of the fixed socket of Figure 7 has two terminals 16.
  • each connector C ' 1 , C' 2 , C ' 3 , C ' 4 of the mobile outlet of Figure 6 has two terminals 18.
  • the polarization of the outlet is carried out not at the connectors, but on the outer lateral edges of the housing of the mobile and fixed sockets.
  • the fixed socket D ' has a protruding flange, which has a keying rim 20.
  • the mobile socket comprises two complementary keying angles 22, 24 allowing plugging in two positions and only two, relative to the fixed socket.
  • the coding may include both forms of coding on the connectors and on the outer periphery of the socket.
  • the invention is also applicable in multiphase networks comprising more than four lines (p> 3).
  • the two connectors C 1 and C 4 corresponding to the lines L 1 and L 4 capable of being dedicated to the 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 passes from the first to the second connection position authorized by pivoting 180 °. It is also possible to use the connection assembly of the voltage circuit described above with the connection assembly of the current measurement circuit described in document FR-A-2 739 973.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Breakers (AREA)
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 true EP1026793A1 (de) 2000-08-09
EP1026793B1 EP1026793B1 (de) 2008-11-05

Family

ID=9541795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000410002 Expired - Lifetime EP1026793B1 (de) 1999-02-05 2000-01-17 Verbindungsanordnung für einen Schutzschalter

Country Status (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1389811A1 (de) * 2002-08-12 2004-02-18 Ensto Busch-Jaeger Oy Steckdosenanordnung

Citations (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
DE3030906A1 (de) * 1980-08-14 1982-02-25 Siemens AG, 1000 Berlin und 8000 München Umschalt-brueckenstecker
FR2739973A1 (fr) * 1995-10-11 1997-04-18 Schneider Electric Sa Ensemble de connexion

Patent Citations (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
DE3030906A1 (de) * 1980-08-14 1982-02-25 Siemens AG, 1000 Berlin und 8000 München Umschalt-brueckenstecker
FR2739973A1 (fr) * 1995-10-11 1997-04-18 Schneider Electric Sa Ensemble de connexion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1389811A1 (de) * 2002-08-12 2004-02-18 Ensto Busch-Jaeger Oy Steckdosenanordnung

Also Published As

Publication number Publication date
FR2789524B1 (fr) 2001-03-16
FR2789524A1 (fr) 2000-08-11
DE60040702D1 (de) 2008-12-18
EP1026793B1 (de) 2008-11-05

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