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EP1117115B1 - Differentialschutzvorrichtung, insbesondere Differentialschutzschalter - Google Patents

Differentialschutzvorrichtung, insbesondere Differentialschutzschalter Download PDF

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Publication number
EP1117115B1
EP1117115B1 EP00410148A EP00410148A EP1117115B1 EP 1117115 B1 EP1117115 B1 EP 1117115B1 EP 00410148 A EP00410148 A EP 00410148A EP 00410148 A EP00410148 A EP 00410148A EP 1117115 B1 EP1117115 B1 EP 1117115B1
Authority
EP
European Patent Office
Prior art keywords
mentioned
housing
differential
board
spring
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
EP00410148A
Other languages
English (en)
French (fr)
Other versions
EP1117115A1 (de
Inventor
Juan Cantero
Franck Fontana
Patrick Guillon
Bernard Lebeau
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 EP1117115A1 publication Critical patent/EP1117115A1/de
Application granted granted Critical
Publication of EP1117115B1 publication Critical patent/EP1117115B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H2071/0242—Assembling parts of a circuit breaker by using snap mounting techniques

Definitions

  • the present invention relates to a differential electrical protection device including a switch comprising, housed in an insulating housing comprising a base and a cover, a mechanism for opening and closing the contacts actuated by a handle, a differential release device capable of being actuated by a triggering member and mechanically connected to said mechanism so as to cause the opening of the contacts of the device when an insulation fault occurs in the circuit to be protected, the aforementioned triggering device being mounted on an electronic card for processing information, the mobile contact (s) of the apparatus being retained in a closed position by an unlocking system that can be unlocked by the actuation of the aforementioned trigger, and being recalled (s) in an open position after triggering by a spring housed in a housing belonging to the base, said spring being supported by its two opposite ends respectively on a wall of the base and on the shaft bearing the (the) contact (s) mobile (s).
  • Document FR 2 686 453 describes a device according to the preamble of claim 1.
  • the present invention solves this problem and proposes a differential switch whose assembly is considerably simplified.
  • the subject of the present invention is a differential electrical protection apparatus such as a switch, this apparatus being characterized in that the base of the apparatus comprises an opening for introducing the spring into the aforementioned housing after mounting, inside the base of the housing of the device, the card equipped with the differential release device and on which card has been previously fixed the mechanism.
  • the housing of the apparatus comprising a front face having, on either side of a projecting portion housing the aforementioned mechanism, two connecting faces accommodating the connection terminals of the apparatus, the device is characterized in that the aforementioned insertion opening of the spring is located substantially at the intersection between one of the connecting faces and the above projecting portion.
  • the aforementioned mechanism is supported by a flange comprising latching means cooperating with complementary latching means provided on the base to ensure at least partly the fixing of the mechanism on the base after mounting said mechanism on the map.
  • the housing of the toroid is arranged with respect to the card, so that this housing cooperates with the walls of the base so as to insure against each other, primary braids directly connecting the contacts mobile devices at the output terminals of the device.
  • the aforementioned mechanism is fixed by plugging on the card.
  • an electronic differential switch D is shown intended to be placed on an electrical network so as to protect it against ground insulation faults.
  • this apparatus is housed in a substantially parallelepiped shaped housing comprising a base 1 and a cover (not visible in the drawings).
  • This switch comprises, as more particularly illustrated in FIG. 1, a differential tripping device 2 mounted on an electronic card 3, said card 3 comprising an auxiliary power supply processing electronic circuit and a mechanism 4 for opening and closing contacts 5.6.
  • This assembly is mounted (FIG. 2) in a compartment 7 of the base 1 of the isolator housing of the switch intended to house input connection terminals 8 and output terminals 9 to constitute a differential switch D.
  • the differential tripping device 2 comprises, in a manner known per se, a totalizing transformer 10 and an electromagnetic tripping relay 11.
  • the totalizing transformer 10 constitutes a differential current detector and is provided with a toroidal magnetic circuit 12 having a central orifice 13 may be traversed by the primary windings 14,15 constituted by the power conductors of the low voltage network to be protected.
  • a secondary winding 16 is wound on the core 12, and is electrically connected to a measurement resistor of the electronic circuit.
  • the electromagnetic tripping relay 11 is formed by a current-transmitting coil actuator 17.
  • the tubular coil 17 is carried by a support, and comprises, in a known way within a bore, a movable magnetic core (not visible in the figures) coupled to an actuating member.
  • the relay coil is connected to two terminals of the electronic circuit.
  • the base 1 of the housing includes a housing 18 intended to receive a spring 19 called a pull spring capable of biasing the movable contacts 5, 6 in the open position after the tripping of the device.
  • the spring 19 is supported by its two opposite ends 19a, 19b respectively on a wall of the base 1 of the housing, and on a shaft 20 said contact carrier supporting the movable contacts 5 6.
  • this housing 18 has an access port 21 located so as to allow the mounting of the spring 19 after assembly of the assembly consisting of the card 3 equipped with the mechanism 4 and the trigger device 2 to the Inside the base 1.
  • this orifice 21 is located at the intersection between, on the one hand, the projecting part s (FIG. 4) housing the opening and closing mechanism 4 and on the other hand, one 22 of the connecting faces 22,23 of the apparatus.
  • the device is installed as follows. Firstly, the primary conductors 14, 15 are introduced through the torus 12 (FIG. These primaries 14,15 are connected, by one of their ends 14a, 15a, respectively to the output connection terminals 9 of the apparatus, and by their opposite end 14b, 15b respectively to the two movable contacts 5,6. The mechanism 4 for opening and closing the contacts is then plugged or plugged onto the card 3 (FIG. 1), then the assembly is inserted into the opening of the base 1.
  • this assembly is realized on the one hand, by snapping mechanism 4 on the base 1 thanks to the presence of a hook 25 provided on the flange 26 supporting the mechanism 4, said hook 25 being adapted to cooperate with a complementary latching element 27 provided on the base 1 and on the other hand, by means of a screw (not shown) passing through two orifices 30, 31 respectively provided in the flange 26 and in the base 1.
  • the tearing spring 19 can then be inserted (position b) in the housing 18 of the base 1 through the opening 21 provided for this purpose in the base 1, as shown more particularly in Figure 4, to the position shown in (a). In this latter position (a), the spring 19 is supported on the one hand, on a wall belonging to the base 1 and on the other hand, on the contact-holder shaft 20.
  • the housing 29 of the core 12 is arranged with respect to the card 3 in such a way that this housing 29 cooperates with the walls 28 of the base 1 so as to insulating, with respect to each other, primary braids 14,15 directly connecting the movable contacts 5,6 to the output ranges 9 of the apparatus. This ensures insulation of the active conductors 14,15 between them at lower cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Breakers (AREA)
  • Amplifiers (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Claims (5)

  1. Elektrisches Schaltgerät mit Differenzstromschutz, insbesondere Differenzstromschutzschalter, der angeordnet in einem Isolierstoffgehäuse mit einem Unterteil und einem Deckel, einen über einen Betätigungshebel angesteuerten Schaltmechanismus zum Aus- und Einschalten der Kontakte, eine Differenzstrom-Auslöseeinrichtung zur Betätigung durch ein Auslöseorgan, die mechanisch mit dem genannten Schaltmechanismus verbunden ist, derart dass sie bei Auftreten eines Isolationsfehlers in dem zu schützenden Stromkreis die Abschaltung der Kontakte des Schaltgeräts bewirkt, wobei die genannte Auslöseeinrichtung auf einer Datenverarbeitungs-Elektronikkarte montiert ist, der bewegliche Kontakt bzw. die beweglichen Kontakte des Schaltgeräts durch einen Verklinkungsmechanismus in der Einschaltstellung gehalten werden, der durch Betätigung des genannten Auslöseorgans entriegelt werden kann und nach erfolgter Auslösung durch eine in einer Aufnahme des Unterteils gelagerte Feder in Richtung einer Ausschaltstellung beaufschlagt wird, welche Feder sich mit ihren beiden einander gegenüberliegenden Enden an einer Wand des Unterteils bzw. an der den beweglichen Kontakt bzw. die beweglichen Kontakte tragenden Welle abstützt,
    dadurch gekennzeichnet, dass in dem genannten Unterteil (1) eine Öffnung (21) ausgebildet ist, die nach dem Einbau der mit der Differenzstrom-Auslöseeinrichtung (2) bestückten Karte (3) in das Unterteil (1) des Gehäuses des Schaltgeräts das Einsetzen der genannten Feder (19) in die genannte Aufnahme (18) erlaubt, wobei der genannte Schaltmechanismus (4) zuvor auf der Karte (3) befestigt wird.
  2. Schaltgerät nach Anspruch 1, bei dem das Gehäuse des Schaltgeräts eine Vorderseite umfasst, die auf beiden Seiten eines hervorstehenden Abschnitts (s), in dem der genannte Schaltmechanismus (4) angeordnet ist, je Anschlussfläche (22, 23) aufweist, in der die Anschlussklemmen (8, 9) des Schaltgeräts angeordnet sind, dadurch gekennzeichnet, dass die genannte Öffnung (21) zur Einführung der Feder (19) annähernd am Übergang zwischen einer (22) der Anschlussflächen (22, 23) und dem genannten hervorstehenden Abschnitt (s) ausgebildet ist.
  3. Schaltgerät nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass der genannte Schaltmechanismus (4) auf einem Tragkörper (26) montiert ist, an dem Schnappmittel (25) ausgebildet sind, die mit zugeordneten, im Unterteil (1) ausgebildeten Schnappmitteln (27) zusammenwirken, um nach der Montage des genannten Schaltmechanismus' (4) auf der Karte (3) zumindest teilweise die Befestigung des Schaltmechanismus (4) am Unterteil (1) zu gewährleisten.
  4. Schaltgerät nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der genannte Schaltmechanismus (4) durch Aufstecken auf der Karte (3) befestigt wird.
  5. Schaltgerät nach irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Gehäuse (29) eines Ringkernwandlers (12) in Bezug zur Karte (3) so angeordnet ist, dass dieses Gehäuse (29) mit Wänden (28) des Unterteils (1) zusammenwirkt, derart dass eine Isolation der flexiblen Leitungsbänder (14, 15) der Primärleiter gegeneinander gewährleistet ist, welche die beweglichen Kontakte (5, 6) direkt mit den Ausgangsklemmen (9) des Schaltgeräts verbinden.
EP00410148A 2000-01-10 2000-12-07 Differentialschutzvorrichtung, insbesondere Differentialschutzschalter Expired - Lifetime EP1117115B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0000246A FR2803688B1 (fr) 2000-01-10 2000-01-10 Appareil de protection electrique differentiel, notamment un interrupteur differentiel
FR0000246 2000-01-10

Publications (2)

Publication Number Publication Date
EP1117115A1 EP1117115A1 (de) 2001-07-18
EP1117115B1 true EP1117115B1 (de) 2006-08-23

Family

ID=8845751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00410148A Expired - Lifetime EP1117115B1 (de) 2000-01-10 2000-12-07 Differentialschutzvorrichtung, insbesondere Differentialschutzschalter

Country Status (4)

Country Link
EP (1) EP1117115B1 (de)
CN (1) CN1180450C (de)
AT (1) ATE337612T1 (de)
FR (1) FR2803688B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2923939A1 (fr) 2007-11-16 2009-05-22 Schneider Electric Ind Sas Appareil de coupure electrique
US10286144B2 (en) 2011-06-23 2019-05-14 Debiotech S.A. Method and system for detecting malfunction of a MEMS micropump
CA2845883A1 (fr) 2011-09-05 2013-03-14 Xylowatt S.A. Gazeifieur de combustible solide carbone
JP6157390B2 (ja) * 2014-03-20 2017-07-05 三菱電機株式会社 漏電遮断器
DE102022202311A1 (de) * 2022-03-08 2023-09-14 Siemens Aktiengesellschaft Elektronisch schaltendes Reiheneinbaugerät und Isolierstoffgehäuse

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648736A (en) * 1949-10-08 1953-08-11 Fed Electric Prod Co Automatic circuit breaker
FR2674986B1 (fr) * 1991-04-08 1996-03-08 Hager Electro Disjoncteur unipolaire modulaire perfectionne et son procede de montage.
FR2686453B1 (fr) * 1992-01-17 1994-04-08 Legrand Interrupteur differentiel.

Also Published As

Publication number Publication date
CN1304155A (zh) 2001-07-18
ATE337612T1 (de) 2006-09-15
FR2803688B1 (fr) 2002-03-01
CN1180450C (zh) 2004-12-15
EP1117115A1 (de) 2001-07-18
HK1038637A1 (en) 2002-03-22
FR2803688A1 (fr) 2001-07-13

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