EP2975628B1 - Dispositif de signalisation d'un défaut électrique dans un appareil de protection électrique, et appareil comportant un tel dispositif - Google Patents

Dispositif de signalisation d'un défaut électrique dans un appareil de protection électrique, et appareil comportant un tel dispositif Download PDF

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Publication number
EP2975628B1
EP2975628B1 EP15175182.3A EP15175182A EP2975628B1 EP 2975628 B1 EP2975628 B1 EP 2975628B1 EP 15175182 A EP15175182 A EP 15175182A EP 2975628 B1 EP2975628 B1 EP 2975628B1
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EP
European Patent Office
Prior art keywords
fault
indicator
signalling
opening
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.)
Active
Application number
EP15175182.3A
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German (de)
English (en)
French (fr)
Other versions
EP2975628A1 (fr
Inventor
Yann Filsnoel
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
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Publication of EP2975628A1 publication Critical patent/EP2975628A1/fr
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Publication of EP2975628B1 publication Critical patent/EP2975628B1/fr
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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
    • H01H9/16—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
    • 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
    • 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
    • H01H9/02—Bases, casings, or covers
    • H01H2009/0292—Transparent window or opening, e.g. for allowing visual inspection of contact position or contact condition
    • 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

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 housing containing a pair of fixed and movable contacts, said movable contact being able to be actuated either manually by a handle mechanically connected to a device for supporting the movable contact, said lever being pivotally mounted between a closed position and an open position of the contacts, either automatically by means of a triggering mechanism comprising a magnetic trigger capable of being activated during the occurrence of a short-circuit fault and a thermal trip device capable of being activated when an overload fault occurs, said movable contact support being mounted in rotation between a position for opening the contacts and a position for closing the contacts and connected to the lever by a transmission means so as to form between the support and the handle a breakable mechanical link, the activation of one of the triggers causing the break of the mechanical link leading to the separation of the contacts, and signaling means called first or said any type of fault intended to signal the state triggered from the device,
  • the device includes means for signaling an automatic trip on fault, but these means do not make it possible to distinguish the type of fault, namely whether it is a fault following an electrical overload or a short circuit.
  • Patents are also known WO 2013114395 and EP 2083434 to report a short circuit fault.
  • auxiliary fault signaling modules signal a trip on fault, but also do not allow a distinction to be made between the two types of fault.
  • Patents are also known US 2,905,795 and US 6,222,433 describing a signaling device comprising the characteristics of the preamble of claim 1.
  • the present invention solves these problems and proposes a device for signaling a fault in an electrical protection device, making it possible to distinguish the type of fault, so as to communicate to the customer more precisely electrical faults in an electrical installation.
  • the present invention relates to a signaling device according to claim 1.
  • the so-called second signaling means comprise a lever, or arm, mounted to rotate relative to the housing of the apparatus, said lever comprising a first end cooperating with the striker of the magnetic trip device and a second end cooperating with an indicator .
  • the so-called first signaling means and the so-called second signaling means respectively comprise a first indicator and a second indicator, said indicators being visible through an opening of the device housing, the appearance of the two indicators through the opening signaling a magnetic type fault while the appearance of a single LED signaling an overload fault.
  • the first and second signaling means are carried by one and the same third light, said third light can take three positions, respectively a first position corresponding to a closed position of the device, a second corresponding position an opening of the contacts following an overload fault, and a third position corresponding to an opening on short circuit.
  • this device comprises means for retaining the so-called third indicator in the intermediate position, or second position, by making it possible for the indicator to move towards the third position on a magnetic trip, by playing on the magnetic forces generated by the striker. of the magnetic release.
  • the stroke given to the so-called third indicator by the rotary lever when a magnetic type is triggered is greater than the stroke given by the trigger mechanism to said indicator during an overload fault.
  • the magnetic forces exerted by the rotary lever will be sufficient to allow the so-called third indicator to pass stops or bumps provided on the indicator and cooperating with edges delimiting the opening of the housing of the device, these stops and bumps being intended to block said indicator in thermal fault position.
  • this device comprises means for resetting the indicator (s) in the device's non-fault position, when the device is closed.
  • the present invention also relates to an electrical protection device comprising a signaling device comprising the previously mentioned characteristics taken alone or in combination.
  • this device comprises a movable assembly comprising the device for supporting the aforementioned movable contact mounted for rotation between the two aforementioned positions and connected to the handle by a transmission means so as to form between the device and the handle a breakable mechanical connection,
  • this device being characterized in that it comprises a signaling device comprising the aforementioned characteristics taken alone or in combination and the aforementioned mobile assembly has a different profile as a function of the speed of opening of the contacts, this speed being different according to that it is a manual opening, or an opening following an electrical fault, this profile being such that said crew actuates the signaling means said first above only during an automatic opening of the contacts following a default.
  • this aforementioned mobile assembly comprises a transmission link articulated by one of its ends on the lever, and connected in an articulated manner by its other end, on a hook, said hook being articulated on the support device of the movable contact, cooperating with the tripping means and comprising means for actuating the signaling means when the contacts open following a fault.
  • this device is a circuit breaker.
  • control device 2 for a miniature electric circuit breaker with molded insulating housing 1, this circuit breaker being of the type shown more completely in the document.
  • EP 1,975,971 This control device 2 includes a support device 3 for the mobile contact 4, said mobile contact 4 being intended to cooperate with a fixed contact 5.
  • An opening is provided in the front face 8 of the housing for the passage of a lever 6 mounted with limited pivoting on an axis 11 of the housing between a closed position in which the contacts 4,5 are closed, and an open position corresponding to the separation of the contacts 4.5.
  • the handle 6 is equipped with an internal base 9 coupled to a transmission link 10 to constitute a toggle device whose articulation 12 ( fig. 16 ) is eccentric relative to the fixed axis 11 of the lever 6.
  • the lever 6 is urged counterclockwise to the open position of the contacts by a return spring (not shown).
  • the fixed contact 5 is secured to the casing of an electromagnetic trip device 13.
  • the mobile contact 4 is fixed to the support device 3 of the mobile contact 4, said support 3 being articulated around a pivot 14, the rotary plate 15 being mounted also rotatable around this pivot 14.
  • a breakable mechanical connection is present between the transmission link 10 and the plate 15 for driving the support device 3 for contacts.
  • the link In the locked position of the trigger mechanism, the link allows manual control of the mechanism by the handle.
  • the displacement of the trigger lever 16 towards the triggered position under the action of the triggers, causes the momentary rupture of the mechanical link, causing the automatic triggering of the mechanism, independently of the lever 6.
  • the trigger lever 16 is associated with a spring recall 27 intended to ensure the automatic restoration of the mechanical connection when the lever 6 is actuated towards the open position, following a triggering of the mechanism on fault.
  • This breakable mechanical connection comprises a hook 19 pivotally mounted on an axis 20 of the plate 15. Opposite this axis, a spout 21 of the hook 19 cooperates in the locked position of the connection with a retaining notch 22 located on the arm of the trigger lever 16.
  • the transmission link 10 is coupled to the hook 19 and to the plate 15 at a point of articulation 23 capable of moving when triggered in two consecutive openings of the plate 15. This point of articulation 23 is located between the articulation axis 20 of the hook 19 on the plate and the spout 21 of the hanging hook.
  • the link constitutes a step-down stage in the kinematic chain of the mechanism, allowing a reduction in the tripping force coming from the magneto-thermal trigger, as described more fully in the patent. EP 1975971 .
  • the balance of forces exerted by the link 10 on the mechanism is broken.
  • the plate 15 rotates around its axis 14 and it opens the contacts 4.5.
  • the opening 25 provided inside the hook 19 authorizes the rotation of the hook 19 around the axis 20 and this opening 25 of the hook as well as the openings of the plate 15 authorize the rotation of the plate, the lever being still held in the closed contact position.
  • the lever spring returns the latter to the open contact position and the link brings the hook back to the initial position.
  • a spring for biasing the hook and resetting the bar places them in a position allowing the hook 19 to be locked on the bar 16 when the lever 6 is actuated to close the contacts 4,5.
  • the openings provided in the plate 15 participate in the guiding of the link 10 so as to bring it back to the support position on the plate.
  • This control device 2 also includes means S for signaling the tripped state of the electrical protection device following a short circuit or an overload, these means being inactive during manual opening.
  • means S for signaling the tripped state of the electrical protection device following a short circuit or an overload, these means being inactive during manual opening.
  • a particular embodiment of these means is more particularly described in the patent EP 1,542,253 .
  • this hook is articulated on the mobile contact support device, cooperates with the triggering means and comprises means for actuating the aforementioned signaling means, in this case a so-called first indicator light 32, during an opening following a defect of any type.
  • the handle 6 and the support device 3 of the movable contact 4 being each returned to the open position by a spring, the inertia of the handle, of the hook and of the device and the return force of the springs of the handle and of the support device, are determined so that the speed of rotation of the hook when opening on fault is much higher than the speed of rotation of the handle.
  • control device also includes so-called second T signaling means intended to signal only the triggered state of the device on short circuit.
  • second T signaling means comprise an arm 34 in rotation relative to an axis 14 corresponding to the axis of the above-mentioned mechanics, this arm 34 being mechanically connected by one of its ends to the striker 28 of the triggering means magnetic 13 and acting by its opposite end on a so-called second indicator 33.
  • the two LEDs 32,33 are visible through the opening 7 of the unit's housing 1, indicating respectively for the LED 32 located furthest to the right, tripping regardless of the type of fault, and for the LED located on further to the left 33, a magnetic type trigger.
  • This apparent configuration of the two LEDs 32,33 indicates that a trip of magnetic origin has taken place.
  • the so-called first indicator 32 located to the right has been moved by the hook when the rotating plate 15 has rotated having caused the hook to rotate rapidly, as this is more fully explained in the document EP 1,542,253 .
  • the leftmost indicator 33, said second has been moved by means of the aforementioned rotary lever 34 having been actuated during the translation of the striker 28 on a short-circuit fault.
  • first S signaling means or so-called any type of fault will be explained in the following with particular reference to the figure 5 .
  • the deflection of the bimetallic strip 18 drives the drawer 30, which drawer drives the rotating bar 16, which results in the unlocking of the bar relative to the hook 19.
  • the hook 19 goes into rotation under the force of the rod 10, and the rotation of the hook 19 causes the translation of the right indicator 32 towards an apparent fault position.
  • the striker 28 drives the bar 16 in rotation, which causes the translation of the right-hand indicator 32 in the same manner as previously to an apparent fault position.
  • the left indicator 33 of the second signaling means T is driven only in the case of a magnetic fault by rotation of the lever 34, which is driven by the striker 28 of the magnetic trip device 13.
  • the appearance of a single indicator 32 through the opening indicates the occurrence of a thermal fault, while the appearance of the two indicators 32.33 indicates the occurrence of a magnetic fault .
  • the Figures 9, 10 and 11 illustrate the case of the occurrence of a fault of magnetic origin.
  • the second indicator 33 has been activated by the lever 34 driven by the striker 28, the first indicator 32 also being in the default position.
  • this appearance of the two LEDs 32.33 makes it possible to signal a fault of magnetic origin. We can thus distinguish a defect of thermal origin from a defect of magnetic origin.
  • the plate 15 comprises a spout 35 capable of cooperating with a part 36 of the indicator lights 32.33 extending substantially perpendicular to the plane of said indicator lights, so as to recall these two indicator lights in the non-fault position during closing the device after opening on fault.
  • the figures 14 to 24 illustrate another embodiment of the signaling device D according to the invention in which this device comprises a single indicator lamp 37 with three positions for performing the two functions previously performed by the two indicator lamps of the previous embodiment, namely signaling any type of faults and the signaling function of a single magnetic fault.
  • this indicator 37 can take three positions, namely a first position called position 0 corresponding to a non-fault position, a second position called a thermal fault in which this indicator has moved 2.5 mm relative to the first position, and a third position corresponding to a magnetic fault position in which the indicator has moved 2.5 mm from the second position, which means that it is at a distance of 5 mm from the O position.
  • the indicator is in the so-called 0 position corresponding to a closed position of the device.
  • the signaling means S In the event of a thermal fault occurring, the signaling means S, called any type of fault, bring the indicator in the second position at a distance of 2.5 mm from the first.
  • the operating sequence during a magnetic trip is the same as before, except for the fact that the light 37 must be retained in this position by making it possible for the single light to move on a magnetic trip towards the third position, by lever 34, by playing on the high magnetic forces, as illustrated on the figures 23 and 24 .
  • the stroke given to the indicator 37 by the lever 34 is greater than the stroke given by the hook 19 to the indicator 37.
  • the magnetic forces will be sufficient to allow the indicator to pass the stops 38 or bumps of the thermal fault position. And these same stops will be sufficient to block the indicator in the thermal fault position whatever the energy given to the hook by the indicator.
  • a device has therefore been produced which makes it possible to signal a trip on fault by distinguishing a thermal fault from a magnetic fault, enabling the electrical faults in an electrical installation to be communicated to the customer more precisely.

Landscapes

  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
EP15175182.3A 2014-07-17 2015-07-03 Dispositif de signalisation d'un défaut électrique dans un appareil de protection électrique, et appareil comportant un tel dispositif Active EP2975628B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1456861A FR3023969B1 (fr) 2014-07-17 2014-07-17 Dispositif de signalisation d'un defaut electrique dans un appareil de protection electrique, et appareil comportant un tel dispositif

Publications (2)

Publication Number Publication Date
EP2975628A1 EP2975628A1 (fr) 2016-01-20
EP2975628B1 true EP2975628B1 (fr) 2020-05-13

Family

ID=52824281

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15175182.3A Active EP2975628B1 (fr) 2014-07-17 2015-07-03 Dispositif de signalisation d'un défaut électrique dans un appareil de protection électrique, et appareil comportant un tel dispositif

Country Status (6)

Country Link
EP (1) EP2975628B1 (hr)
CN (1) CN105280447B (hr)
BR (1) BR102015015736B1 (hr)
ES (1) ES2799719T3 (hr)
FR (1) FR3023969B1 (hr)
RU (1) RU2704918C2 (hr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4064314A1 (fr) 2021-03-26 2022-09-28 Schneider Electric Industries SAS Dispositif de protection électrique
WO2022243419A1 (fr) 2021-05-20 2022-11-24 Schneider Electric Industries Sas Appareils et systèmes de protection électrique
WO2022243456A1 (fr) 2021-05-20 2022-11-24 Schneider Electric Industries Sas Appareils et systèmes de protection électrique comportant un module de coupure intégré
FR3134226A1 (fr) 2022-04-04 2023-10-06 Schneider Electric Industries Sas Appareil de protection électrique modulaire avec modules de commande et de puissance

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3051593B1 (fr) 2016-05-23 2019-10-04 Schneider Electric Industries Sas Dispositif de signalisation d'un defaut electrique dans un appareil de protection electrique, et appareil de protection electrique comportant un tel dispositif.
CN110940913B (zh) * 2018-09-21 2022-05-27 施耐德电器工业公司 用于断路器的短路故障指示及机械测试的机构
CN111029184B (zh) * 2019-12-16 2022-03-08 广东瑞德智能科技股份有限公司 一种开关装置及具有该开关装置的烘烤装置、家用电器

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US2905795A (en) * 1957-12-30 1959-09-22 Ite Circuit Breaker Ltd Indicator structure for circuit breakers
US3205325A (en) * 1963-06-19 1965-09-07 Gen Electric Circuit breaker trip device
US6239677B1 (en) * 2000-02-10 2001-05-29 General Electric Company Circuit breaker thermal magnetic trip unit
WO2002082486A2 (en) * 2001-03-29 2002-10-17 General Electric Company Circuit breaker thermal magnetic trip unit
JP3966058B2 (ja) * 2002-04-19 2007-08-29 富士電機機器制御株式会社 回路しゃ断器
AT503744B1 (de) * 2003-10-01 2009-12-15 Moeller Gebaeudeautomation Kg Schutzschalter
FR2863403B1 (fr) 2003-12-08 2006-01-20 Schneider Electric Ind Sas Dispositif de signalisation du declenchement d'un appareil de protection electrique et appareil de protection electrique le comportant
EP1906426B1 (de) * 2006-09-29 2009-05-06 Siemens Aktiengesellschaft Schaltgerät mit Schaltschloss
FR2914485B1 (fr) 2007-03-29 2009-04-24 Schneider Electric Ind Sas Dispositif de commande d'un appareil de protection electrique et appareil de protection electrique la comportant
FR2926923B1 (fr) 2008-01-28 2010-03-26 Hager Electro Sas Systeme de signalisation d'un defaut electrique dans un appareil de coupure
WO2013114395A2 (en) 2012-01-20 2013-08-08 Larsen & Toubro Limited Short-circuit fault indicator device

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4064314A1 (fr) 2021-03-26 2022-09-28 Schneider Electric Industries SAS Dispositif de protection électrique
FR3121270A1 (fr) 2021-03-26 2022-09-30 Schneider Electric Industries Sas Dispositif de protection électrique
WO2022243419A1 (fr) 2021-05-20 2022-11-24 Schneider Electric Industries Sas Appareils et systèmes de protection électrique
WO2022243456A1 (fr) 2021-05-20 2022-11-24 Schneider Electric Industries Sas Appareils et systèmes de protection électrique comportant un module de coupure intégré
FR3123141A1 (fr) 2021-05-20 2022-11-25 Schneider Electric Industries Sas Appareils et systèmes de protection électrique
FR3123142A1 (fr) 2021-05-20 2022-11-25 Schneider Electric Industries Sas Appareils et systèmes de protection électrique comportant un module de coupure intégré
FR3134226A1 (fr) 2022-04-04 2023-10-06 Schneider Electric Industries Sas Appareil de protection électrique modulaire avec modules de commande et de puissance
WO2023194292A1 (fr) 2022-04-04 2023-10-12 Schneider Electric Industries Sas Appareil de protection électrique modulaire avec modules de commande et de puissance

Also Published As

Publication number Publication date
RU2015129118A (ru) 2017-01-20
FR3023969B1 (fr) 2017-12-22
BR102015015736B1 (pt) 2022-02-15
ES2799719T3 (es) 2020-12-21
CN105280447B (zh) 2019-10-15
RU2015129118A3 (hr) 2018-10-30
CN105280447A (zh) 2016-01-27
RU2704918C2 (ru) 2019-10-31
FR3023969A1 (fr) 2016-01-22
BR102015015736A2 (pt) 2016-01-19
EP2975628A1 (fr) 2016-01-20

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