EP3249673A1 - Vorrichtung zur signalisierung einer elektrischen störung in einem elektrischen schutzgerät, und elektrisches schutzgerät, das eine solche vorrichtung umfasst - Google Patents

Vorrichtung zur signalisierung einer elektrischen störung in einem elektrischen schutzgerät, und elektrisches schutzgerät, das eine solche vorrichtung umfasst Download PDF

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Publication number
EP3249673A1
EP3249673A1 EP17160475.4A EP17160475A EP3249673A1 EP 3249673 A1 EP3249673 A1 EP 3249673A1 EP 17160475 A EP17160475 A EP 17160475A EP 3249673 A1 EP3249673 A1 EP 3249673A1
Authority
EP
European Patent Office
Prior art keywords
lever
signaling
contacts
indicator
magnetic
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
EP17160475.4A
Other languages
English (en)
French (fr)
Other versions
EP3249673B1 (de
Inventor
Yves Belin
Emir BOUMEDIENE
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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Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP3249673A1 publication Critical patent/EP3249673A1/de
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Publication of EP3249673B1 publication Critical patent/EP3249673B1/de
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    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • 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
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/046—Means for indicating condition of the switching device exclusively by position of operating part, e.g. with additional labels or marks but no other movable indicators
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure

Definitions

  • the present invention relates to a device for signaling the triggering of an electrical protection device such as a circuit-breaker housed in an insulating casing enclosing a pair of fixed and movable contacts, said movable contact being able to be actuated either manually by a lever mechanically connected to a device for supporting the movable contact, said handle being pivotally mounted between a closed position and an open position of the contacts, either automatically via a triggering mechanism comprising a magnetic trigger capable of being activated at the occurrence a short-circuit fault and a thermal trip unit that can be activated when an overload fault occurs, said mobile contact support being rotatably mounted between an open position of the contacts and a closed position of the contacts; contacts and connected to the handle by a transmission means so as to form between the support and the handle a breakable mechanical connection, the activation of one of the triggers resulting in the breaking of the mechanical link causing the separation of the contacts, and so-called first signaling means able to trigger only on a short-circuit fault
  • this device comprises two signaling means respectively two indicators in the form of two lights, one LEDs are intended to indicate the presence of a magnetic fault, the other LEDs being intended to indicate any type of fault.
  • the present invention relates to a device for signaling an electrical fault in an electrical protection device, of simplified design, and an electrical protection device comprising such a device.
  • the subject of the present invention is a signaling device of the kind mentioned above, this device being characterized in that the said first signaling means comprise means for locking the aforementioned joystick in an intermediate position situated between the two positions of the handle respectively corresponding to an open position and to a closed position of the apparatus, when a magnetic fault occurs, these means being controlled by the movable core of the magnetic trigger.
  • these means comprise a so-called first lever, referred to as a return lever, mounted articulated around a fixed axis relative to the housing of the apparatus, this return lever comprising a first end portion intended to cooperate with the mobile core and a second end portion for cooperating with the base of the joystick.
  • the aforementioned return lever cooperates with the mobile core via a so-called second lever articulated relative to the housing of the apparatus, said second lever having a first end portion rotatably mounted around an axis integral with the movable core and a second end portion comprising a hooking element adapted to cooperate with a complementary shaped fastening element belonging to the aforementioned first end portion of the return lever, in such a way that the hooking position of the two levers relative to each other corresponds to a closed position of the contacts during normal operation of the device, and that when an original defect appears magnetic, the displacement of the movable core causes the disengagement of the two elements of attachment one relative to the other, this disengagement allowing the recall of the return lever in a locking position of the handle in the aforementioned intermediate position.
  • the aforementioned return lever comprises a so-called third end portion adapted to cooperate with an indicator so as to indicate the presence or absence of a defect of magnetic origin.
  • this indicator comprises a reset means adapted to be operated by a user so as to return the return lever in a hooking position with the lever said second, after locking the lever in the intermediate position, this to release the joystick and allow the continued movement to the open position. This prevents the device from reclosing if the reset has not been performed.
  • this indicator is rotatably mounted relative to the housing of the apparatus, said indicator cooperating with said so-called third end portion of the return lever and having a surface visible to a user through an opening of the housing of the apparatus, said visible surface having means for indicating the presence or absence of a magnetic defect as a function of the rotating position of said indicator.
  • this indicator comprises at least a colored surface portion on its visible surface, the appearance of this color through the opening of the housing indicating the occurrence of a magnetic fault.
  • this third end portion comprises a rod comprising an axis, this axis being able to cooperate with a groove provided in the aforementioned indicator, so that the rotation drive of the return lever in one direction causes rotation in an opposite direction of the indicator.
  • this reset means comprises a finger element projecting from said aforementioned surface of the indicator.
  • this third end portion comprises an arm comprising an axis, this axis being able to cooperate with a groove provided in the aforementioned indicator, in such a way that the drive in rotation of the return lever in one direction causes a rotation in the opposite direction of the indicator.
  • the present invention also relates to an electrical protection apparatus comprising a signaling device comprising the aforementioned characteristics taken alone or in combination.
  • this apparatus comprises a signaling device comprising the aforementioned features taken alone or in combination, and a so-called second signaling means, able to signal the triggered state of the device whatever the type of defect. , the activation of the two signaling means signaling a magnetic type fault, while the activation of a single signaling means signaling an overload fault.
  • this device is a circuit breaker.
  • this control device comprises a support device 3 of the mobile contact 4 of the device, this mobile contact 4 cooperating with a fixed contact 5.
  • An opening 7 is provided in the front face 8 of the housing for the passage of a lever 6 mounted pivotally limited on an axis 11 of the housing between a closed position in which the contacts 4,5 are closed, and a position of opening corresponding to the separation of the contacts.
  • the lever 6 is equipped with an internal base 9 coupled to a transmission rod 10 to form a toggle device whose articulation 12 is eccentric with respect to the fixed axis 11 of the lever 6.
  • the lever 6 is biased in the trigonometric direction towards the position of opening of the contacts by a return spring (not shown).
  • the fixed contact 5 is secured to the casing of the electromagnetic release 13.
  • the movable contact 4 is fixed to the support device 3 of the movable contact 4, said support 3 being articulated on a pivot 14, the rotating plate 15 being rotatably mounted around the same pivot 14.
  • a breakable mechanical connection is provided between the transmission link 10 and the drive plate of the contact support device 3 4. In the locked position, the connection allows the manual control of the mechanism by the lever 6.
  • the displacement of the trigger lever 16 to the triggered position under the action of the triggers, causes the momentary rupture of the mechanical link, causing the automatic trigger mechanism , independently of the handle 6.
  • the trigger lever 16 is associated with a return spring for ensuring the automatic restoration of the mechanical link when the handle 6 is actuated to the open position, following a triggering of the fault mechanism .
  • the breakable mechanical link comprises a hook 19 mounted pivotably on an axis 20 of the plate 15.
  • the spout 21 of the hook 19 cooperates in the locked position of the link with a retaining catch 22 ( fig.4 )
  • the transmission link 10 is coupled to the hook 19 and the plate 15 at a hinge point 23 that can move when triggered in two consecutive openings 24 and 26 of the plate. 15.
  • This articulation point 23 is located between the hinge axis 20 ( fig.3 ) of the hook 19 on the plate and the spout 21 ( fig.4 ) of the hook hook.
  • the link constitutes a reduction stage in the kinematic chain of the mechanism, allowing a reduction of the triggering force from the magnetothermal release.
  • the hook 19 also has a bean-shaped opening or V 25 which, with the openings 24 and 26 of the plate, are intended to allow the rotation of the contact holder plate 15, during a trip, while the link 10 is blocked by the handle 6, itself held in the closed position of the contacts.
  • the opening 26 provided in the plate 15 also guides the stroke of the link when the handle returns to the open position of the contacts after a trip.
  • the two openings 24,26 of the plate 15 extend relative to each other so as to form a V.
  • the device for signaling a fault comprises a set of two levers respectively a so-called first or return lever 27 intended to cooperate with the handle 6, and a said second lever 28 intended to cooperate with the movable core 29.
  • This lever said second 28 is mounted articulated about a fixed axis 30 relative to the housing of the apparatus, said lever having two parts 28a end, 28b located on either side of said axis 30.
  • One of the end portion, said first 28a of the lever is articulated around an end portion 29a of the movable core 29 of the electromagnetic release 13, this end portion of the movable core being located opposite the portion of the striker 18 cooperating with the release lever 16, while the other end portion 28b of the lever, said second part end member 28b, comprises a hooking element 33.
  • This hooking element 33 is intended to cooperate with a complementary shaped fastening element 34 belonging to said first lever or return lever 27, which return lever 27 is mounted artic 25, the latch position in the latching position between the two levers 27,28, the rotation of the second lever 28 in the clockwise direction causes the rotation of the return lever 27 counterclockwise.
  • this return lever 27 comprises three end portions, namely respectively a first portion 27a comprising the aforementioned fastening element 33, a second portion 27b intended to cooperate with a signaling means 39 of a defect of magnetic origin, and a third portion 27c for cooperating with the lever 6 as will be explained in the following.
  • This second portion 27b comprises a rod 37 having at its free end an axis 37a adapted to cooperate with a groove 39a belonging to an indicator element 39, which indicator 39 is rotatably mounted relative to another fixed axis 39b of the housing, such that way that the rotation of the return lever 27 causes a corresponding rotation in the opposite direction of the indicator 39.
  • This indicator 39 ( fig.5 ) has a tubular portion 39c, from which extend, on either side of the aforementioned axis 39b, a U-shaped portion 39d and a finger element 39e.
  • the third part 27c of the return lever 27 comprises a branch 38a having at its free end a substantially flat surface 38b able to cooperate with a part of the base 9 of the lever 6.
  • the control device 2 is in an open position of the contacts 4,5, the lever 6 being in the open position. In this position, the striker 18 is retracted inside the coil and the movable core 29 is in a position at most away from said coil.
  • the hooking system is activated between the two levers 27,28, the hooking element 34 of the said second lever 28 being engaged with the corresponding fastening element 33 belonging to the return lever 27, so that the 39 signaling means does not report any magnetic fault.
  • the lever 6 is actuated to effect the closure of the contacts 4,5 ( fig.2 ), it moves the rod 10 which bears on the plate 15 and the hook 19.
  • the hook 19 is locked on the bar (or lever) trigger.
  • the rod 10 bears on the plate 15 and the hook 19, rotates the plate about its axis 14 until the contacts 4,5 close.
  • the rod continues to travel until the dead center of the toggle formed by the handle 6 and the link 10 is crossed.
  • the mechanism takes the equilibrium position which keeps the contacts closed.
  • the passage of the device from the open position ( fig.1 ) at the closed position ( fig.2 ) does not cause any change in the position of the signaling means 39, since the firing pin 18, and therefore the movable core, has not been set in motion.
  • the handle 6 is actuated from the closed position illustrated on the figure 2 until it crosses the dead center of the knee in the other direction.
  • the mechanism then reaches the equilibrium position, the contacts being open, when the handle reaches the end of its stroke, position represented on the figure 1 .
  • the trigger bar 16 is actuated by the striker 18, as shown in FIG. figure 3 the hook 19 is unlocked, but the lever 6 does not return immediately to its open position.
  • the mobile core 29 unlocks the hooking between the two levers 27,28.
  • the balance of forces exerted by the rod 10 on the mechanism is broken.
  • the plate 15 rotates about its axis 14 and opens the contacts, the position shown on the figure 4 .
  • the opening 25 provided inside the hook 19, allows the rotation of the hook about the axis 20 and this opening 25 of the hook and the openings 24,26 of the plate 15, allow the rotation of the plate, the joystick is still maintained in the closed contacts position.
  • Unlocking the hooking between the two levers 27,28 causes the rotation of the return lever 27 in the clockwise direction under the effect of a not shown spring recalling the return lever 27 in the direction of the lever 6, this movement the return lever driving the indicator 39 to a position in which it indicates the presence of a magnetic fault.
  • the spring of the handle 6 brings it to the open position of the contacts and the link 10 returns the hook 19 to the initial position.
  • the polarization spring of the hook 19 and resetting of the bar 16 places them in a position that does not allow the hook to be locked on the bar when the lever is actuated to close the contacts.
  • the openings 24,26 provided in the plate 15 participate in the guide of the rod 10 so as to bring it back into position on the platen.
  • the handle 6 clings via its base 9 to the second fastening element 34 forming a pawl, which is released from its engagement with the second lever 28.
  • the signaling means constituted by the indicator 39 then signals the presence of a defect of magnetic origin by a color change occurring on the outer surface portion 39f of the tubular portion 39c, this outer surface portion 39f being located at right of the aforementioned finger 39th, looking from the front figure 5 .
  • the signaling will only appear on the pole in default.
  • the deletion of the signaling of the magnetic origin fault will be done by resetting the so-called secondary lever 39, formed by the aforementioned indicator, this resetting being effected by a driving action in rotation of said secondary lever by the user clockwise as shown on the figure 6 .
  • the invention applies to any electrical appliance comprising a mechanism of the type mentioned above, such as a circuit breaker, a switch, a differential switch, a disconnector, auxiliary contacts etc .

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EP17160475.4A 2016-05-23 2017-03-13 Vorrichtung zur signalisierung einer elektrischen störung in einem elektrischen schutzgerät, und elektrisches schutzgerät, das eine solche vorrichtung umfasst Active EP3249673B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1654569A FR3051593B1 (fr) 2016-05-23 2016-05-23 Dispositif de signalisation d'un defaut electrique dans un appareil de protection electrique, et appareil de protection electrique comportant un tel dispositif.

Publications (2)

Publication Number Publication Date
EP3249673A1 true EP3249673A1 (de) 2017-11-29
EP3249673B1 EP3249673B1 (de) 2020-09-16

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EP17160475.4A Active EP3249673B1 (de) 2016-05-23 2017-03-13 Vorrichtung zur signalisierung einer elektrischen störung in einem elektrischen schutzgerät, und elektrisches schutzgerät, das eine solche vorrichtung umfasst

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EP (1) EP3249673B1 (de)
CN (1) CN107452525B (de)
ES (1) ES2823284T3 (de)
FR (1) FR3051593B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3097075A1 (fr) * 2019-06-05 2020-12-11 Schneider Electric Industries Sas Mécanisme indicateur de défaut de court-circuit et disjoncteur comprenant un tel mécanisme indicateur de défaut de court-circuit.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3087273B1 (fr) * 2018-10-15 2020-11-06 Schneider Electric Ind Sas Dispositif de mesure et appareil de commutation electrique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1274109A1 (de) * 2001-07-06 2003-01-08 Schneider Electric Industries SAS Betätigungsmechanismus für einen Lastschalter
EP1906426A1 (de) * 2006-09-29 2008-04-02 Siemens Aktiengesellschaft Schaltgerät mit Schaltschloss
EP1975971A1 (de) 2007-03-29 2008-10-01 Schneider Electric Industries S.A.S. Bedienungsvorrichtung eines elektrischen Sicherungsgeräts und elektrisches Sicherungsgerät, das sie umfasst
US20110147178A1 (en) * 2009-12-22 2011-06-23 Schneider Electric USA, Inc. Electronic Miniature Circuit Breaker With Trip Indication Using The Breaker Tripping Function As The Feedback Mechanism
EP2975628A1 (de) 2014-07-17 2016-01-20 Schneider Electric Industries SAS Vorrichtung zur signalisierung einer elektrischen störung in einem elektrischen schutzgerät, und gerät, das eine solche vorrichtung umfasst

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2931998A1 (fr) * 2008-06-03 2009-12-04 Schneider Electric Ind Sas Dispositif de commande d'un appareil de coupure electrique comportant un dispositif de signalisation de la soudure des contacts, et appareil de coupure electrique comportant un tel dispositif
FR2989217B1 (fr) * 2012-04-10 2014-03-28 Schneider Electric Ind Sas Dispositif de commande pour un appareil de protection electrique moyenne tension comportant un dispositif d'inter verrouillage et appareil de protection electrique le comportant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1274109A1 (de) * 2001-07-06 2003-01-08 Schneider Electric Industries SAS Betätigungsmechanismus für einen Lastschalter
EP1906426A1 (de) * 2006-09-29 2008-04-02 Siemens Aktiengesellschaft Schaltgerät mit Schaltschloss
EP1975971A1 (de) 2007-03-29 2008-10-01 Schneider Electric Industries S.A.S. Bedienungsvorrichtung eines elektrischen Sicherungsgeräts und elektrisches Sicherungsgerät, das sie umfasst
US20110147178A1 (en) * 2009-12-22 2011-06-23 Schneider Electric USA, Inc. Electronic Miniature Circuit Breaker With Trip Indication Using The Breaker Tripping Function As The Feedback Mechanism
EP2975628A1 (de) 2014-07-17 2016-01-20 Schneider Electric Industries SAS Vorrichtung zur signalisierung einer elektrischen störung in einem elektrischen schutzgerät, und gerät, das eine solche vorrichtung umfasst

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3097075A1 (fr) * 2019-06-05 2020-12-11 Schneider Electric Industries Sas Mécanisme indicateur de défaut de court-circuit et disjoncteur comprenant un tel mécanisme indicateur de défaut de court-circuit.

Also Published As

Publication number Publication date
EP3249673B1 (de) 2020-09-16
ES2823284T3 (es) 2021-05-06
FR3051593B1 (fr) 2019-10-04
CN107452525A (zh) 2017-12-08
CN107452525B (zh) 2020-09-11
FR3051593A1 (fr) 2017-11-24

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