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EP0547928B1 - Schutzschalter - Google Patents

Schutzschalter Download PDF

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Publication number
EP0547928B1
EP0547928B1 EP92403111A EP92403111A EP0547928B1 EP 0547928 B1 EP0547928 B1 EP 0547928B1 EP 92403111 A EP92403111 A EP 92403111A EP 92403111 A EP92403111 A EP 92403111A EP 0547928 B1 EP0547928 B1 EP 0547928B1
Authority
EP
European Patent Office
Prior art keywords
hatch
flap
opening
actuator knob
contacts
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
EP92403111A
Other languages
English (en)
French (fr)
Other versions
EP0547928A1 (de
Inventor
Christian Blanchard
Michel Lauraire
Didier Vigouroux
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.)
Telemecanique SA
Original Assignee
La Telemecanique Electrique 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 La Telemecanique Electrique SA filed Critical La Telemecanique Electrique SA
Publication of EP0547928A1 publication Critical patent/EP0547928A1/de
Application granted granted Critical
Publication of EP0547928B1 publication Critical patent/EP0547928B1/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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • H01H89/08—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device with both devices using the same contact pair

Definitions

  • the present invention relates to a protective switch device such as a contactor-circuit breaker, provided with at least one pole with separable contacts, comprising on the one hand a control mechanism capable of causing the opening and closing of the contacts and capable of be actuated by protective means capable of acting in the event of an electrical fault and on the other hand a manual control button, and controlling an electromagnet for operating the contacts - see p. ex. EP-A-0366519.
  • Apparatuses of the above type are known as contactors-circuit breakers which integrate in a single housing a resettable circuit breaker current limiter for protection against short-circuits and a contactor for automatic control and remote control.
  • these devices incorporate a magneto-thermal protection module capable of causing the contacts to open in the event of overload or overcurrent.
  • the user of such an apparatus may have to replace the coil of the electromagnet which is housed in the housing, for example to change the operating voltage.
  • safety devices are provided on the devices currently marketed.
  • the coil of the electromagnet can only be replaced after removing the wires arriving at the coil terminals. After this operation, you can remove a cover giving access to the electromagnet and replace it. It is understood that these disassembly and reassembly operations are relatively complicated.
  • the object of the present invention is to provide a device of the contactor-circuit breaker type, in which the disassembly and reassembly operations necessary for changing the coil of the electromagnet are simplified as much as possible. Safe operation is ensured without the need to disconnect the wires from the coil connection terminals.
  • the device is characterized by the fact that it comprises a movable hatch opening and closing an opening of the case so as to allow the coil of the electromagnet to be changed and that this hatch cooperates with a locking member for hatch capable of being moved between a closed position where it immobilizes, in the closed position, the hatch on the housing and an open position allowing the hatch to open, this hatch locking member being associated with means of selective locking capable of immobilizing it in the closed position when the manual control button occupies all positions other than the stop position and of releasing it so that a user can bring it into the open position allowing opening the hatch when the manual control button is in the off position.
  • the hatch locking member is constituted by a bolt movable in translation parallel to the axis of the control button and a blocking slide prevents any displacement of this bolt when the control button occupies a position other than the stop position and is likely to penetrate the control button when the latter is in the stop portion so as to release the movement of the bolt.
  • control button has a profile allowing the displacement of the blocking slide, in the stopped position of the device.
  • the trap bolt is a bolt oscillating around an axis and carrying blocking means cooperating with the manual control button.
  • the apparatus of the contactor-circuit breaker type illustrated in FIG. 1 comprises, in a housing 1, several breaking poles of the double-break type. Each pole has a movable contact bridge 21 which cooperates by contact pads with two fixed contacts 31, 32 connected to connection terminals to establish or interrupt the passage of a power current between these terminals.
  • a magnetic and thermal protection assembly 4 is disposed on each current path in the housing.
  • the assembly 4 detects an overcurrent on the current path, it acts by means of a mechanism 5 provided with a lever 51 on a contact carrier 2 serving for the support and movement of the contact bridges.
  • the assembly 4 comprises for example a magnetic trigger and a thermal trigger.
  • an electromagnet 7 housed in the housing 1 acts on another part of the structure 2.
  • the electromagnet comprises a fixed magnetic circuit 71, a movable armature 72 and a coil 73 electrically connected to terminals by a switch; the latter is controllable by the mechanism 5 and / or by a button 6 capable of controlling the electromagnet.
  • the movable armature 72 of the electromagnet is subject to a return spring and cooperates with a lever 74 which is directly coupled to the contact carrier 2.
  • the housing has, on the side of the electromagnet 7, an opening 12 making it possible to introduce and extract the electromagnet coil which is housed in a housing of the housing.
  • This opening is closed by a movable hatch 11.
  • the opening and closing movement of the hatch 11 does not require any intervention on the coil supply wires 75.
  • the hatch 11 can pivot on the housing in the manner of a clapper or door.
  • a hatch bolt 81 capable of being moved between a closed position corresponding to the closed position of the hatch and an open position allowing the hatch to open.
  • This trap bolt 81 is associated with a locking mechanism 82 capable of keeping it immobilized in the closed position when the manual control button 6 occupies all the positions other than the stop position and of releasing it, so that a user can bring it to the open position when the manual control button 6 occupies the stop position.
  • the trap bolt 81 is movable in translation parallel to the axis of rotation 61 of the button 6 and cooperates with a blocking slide 82 movable in translation, perpendicular to the axis 61 and to the axis of translation of the bolt 81.
  • This slide 82 is subjected to a return spring 83 tending to bring it back into the locking position of the bolt 81.
  • the control button 6 occupies a position other than the stop position, the slide 82 is prevented from moving and blocks any movement of the bolt 81.
  • the manual control button 6 has a profile allowing the movement of the locking slide 82, for the stop position of the device. To this end, the control button 6 has a blind hole 62 for opening in which the end of the locking slide 82 can engage. This blind hole 62 is positioned opposite the slide 82 only when the manual control button 6 is in the stop position.
  • the trap bolt 81 is pivotally mounted on the housing around an axis 84 and it is subjected to a return spring 85.
  • This sector-shaped bolt can oscillate between a position of closure shown in solid lines and an open position shown in dotted lines. It carries a locking finger 82 preventing any rotation of this bolt 81 when the button 6 occupies a position other than the stop position.
  • a blind hole formed in this button, such as 62, allows the bolt 81 to pivot to the open position.
  • control button 6 prevents any movement of the bolt 81 and therefore any opening of the hatch.
  • the control button 6 authorizes the movement of the hatch locking bolt. The user can therefore move the bolt and open the hatch to change the reel.
  • This device will not authorize restarting of the device until the hatch is returned to the closed position and the trap bolt is not returned to the locked position.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Claims (4)

  1. Schutzschaltvorrichtung wie Schütz, die mit wenigstens einem Pol mit trennbaren Kontakten versehen ist und einerseits einen Steuermechanismus (5), der die Öffnung und die Schließung der Kontakte (21, 31) bewirken kann und durch ein Schutzmittel (4) betätigt sein kann, das im Falle eines elektrischen Fehlers wirken kann, und andererseits einen manuellen Steuerknopf (6) besitzt, der einen Elektromagnet (7) zur Betätigung der Kontakte steuert, dadurch gekennzeichnet, daß sie eine bewegliche Klappe (11) besitzt, die eine Öffnung des Gehäuses öffnet und verschließt, so daß sie den Austausch der Spule des Elektromagnets (7) gestattet, und daß diese Klappe (81) mit einem Klappenverriegelungsorgan (81) zusammenwirkt, das zwischen einer Verschlußstellung, in der es die Klappe an dem Gehäuse in geschlossener Stellung blockiert, und einer Öffnungsstellung, die die Öffnung der Klappe gestattet, bewegt werden kann, wobei dieses Klappenverriegelungsorgan (81) Mitteln (82, 62) zur selektiven Blockierung zugeordnet ist, die es in geschlossener Stellung blockieren können, wenn der manuelle Steuerknopf (6) alle anderen Stellungen als die Unterbrechungsstellung einnimmt, und es freigeben können, so daß ein Benutzer es in die Öffnungsstellung bringen kann, die die Öffnung der Klappe gestattet, wenn der manuelle Steuerknopf (6) die Unterbrechungsstellung einnimmt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Klappenverriegelungsorgan (81) aus einem parallel zur Achse des Steuerknopfs (6) translationsbeweglichen Riegel besteht und daß ein Blockierschieber (82) jede Bewegung dieses Riegels verhindert, wenn der Steuerknopf eine andere Stellung als die Unterbrechungsstellung einnimmt, und in den Steuerknopf eindringen kann, wenn dieser in der Unterbrechungsstellung ist, so daß die Bewegung des Riegels (81) freigegeben wird.
  3. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Steuerknopf (6) ein Profil besitzt, das die Bewegung des Blockierschiebers (82) in der Unterbrechungsstellung der Vorrichtung gestattet.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Klappenriegel (81) ein um eine Achse (84) schwenkbarer Riegel ist und Blockiermittel (82) trägt, die mit dem manuellen Steuerknopf (6) zusammenwirken.
EP92403111A 1991-12-17 1992-11-19 Schutzschalter Expired - Lifetime EP0547928B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9115766 1991-12-17
FR9115766A FR2685124B1 (fr) 1991-12-17 1991-12-17 Appareil interrupteur de protection tel que contacteur-disjoncteur.

Publications (2)

Publication Number Publication Date
EP0547928A1 EP0547928A1 (de) 1993-06-23
EP0547928B1 true EP0547928B1 (de) 1994-06-15

Family

ID=9420213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92403111A Expired - Lifetime EP0547928B1 (de) 1991-12-17 1992-11-19 Schutzschalter

Country Status (5)

Country Link
US (1) US5293521A (de)
EP (1) EP0547928B1 (de)
AT (1) ATE107433T1 (de)
DE (1) DE69200195T2 (de)
FR (1) FR2685124B1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4341330C1 (de) * 1993-12-03 1995-04-20 Siemens Ag Elektromagnetisches Schaltgerät
US6255926B1 (en) * 1999-08-30 2001-07-03 Eaton Corporation Circuit interrupter with accessory trip interface and break-away access thereto
DE10047566A1 (de) * 2000-09-22 2002-04-18 Mueller Jean Ohg Elektrotech Blockiereinrichtung für Trennmesser
DE102006018852B8 (de) * 2006-04-22 2008-04-17 Moeller Gmbh Handbetätigter Schutzschalter
DE102007043133B3 (de) * 2007-09-11 2009-04-09 Wöhner GmbH & Co. KG Elektrotechnische Systeme Lasttrennschalter
FR2999791B1 (fr) * 2012-12-18 2015-01-02 Schneider Electric Ind Sas Dispositif modulaire de commutation electrique comportant au moins un bloc de coupure unipolaire et ensemble de commutation comportant de tels dispositifs
DE102013212798A1 (de) * 2013-07-01 2015-01-08 Siemens Aktiengesellschaft Blockierelement für einen elektrischen Schalter
JP6414453B2 (ja) 2014-12-05 2018-10-31 オムロン株式会社 電磁継電器
JP2016110843A (ja) 2014-12-05 2016-06-20 オムロン株式会社 電磁継電器
JP6365684B2 (ja) * 2014-12-05 2018-08-01 オムロン株式会社 電磁継電器
US10134551B2 (en) * 2016-09-21 2018-11-20 Astronics Advanced Electronic Systems Corp. Galvanically isolated hybrid contactor
CN112233922B (zh) * 2020-09-18 2023-01-31 国家电网有限公司 一种防止继电保护误出口跳闸的门禁装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE255208C (de) *
US4037184A (en) * 1976-04-09 1977-07-19 I-T-E Imperial Corporation Lockout and cover interlock for circuit breaker
US4088973A (en) * 1976-04-28 1978-05-09 Gould Inc. Unitized combination starter
FR2638563B1 (fr) * 1988-10-27 1990-12-14 Telemecanique Electrique Dispositif de securite pour appareil de commutation realise par l'assemblage de plusieurs elements modulaires amovibles

Also Published As

Publication number Publication date
FR2685124A1 (fr) 1993-06-18
ATE107433T1 (de) 1994-07-15
DE69200195T2 (de) 1994-11-10
DE69200195D1 (de) 1994-07-21
EP0547928A1 (de) 1993-06-23
FR2685124B1 (fr) 1994-03-18
US5293521A (en) 1994-03-08

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