EP2070100B1 - Mécanisme de commutation d'un dispositif de protection contre les courants de court-circuit, dispositif de protection contre les courants de court-circuit et système doté d'un dispositif de protection contre les courants de court-circuit et d'un disjoncteur - Google Patents

Mécanisme de commutation d'un dispositif de protection contre les courants de court-circuit, dispositif de protection contre les courants de court-circuit et système doté d'un dispositif de protection contre les courants de court-circuit et d'un disjoncteur Download PDF

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Publication number
EP2070100B1
EP2070100B1 EP08803357A EP08803357A EP2070100B1 EP 2070100 B1 EP2070100 B1 EP 2070100B1 EP 08803357 A EP08803357 A EP 08803357A EP 08803357 A EP08803357 A EP 08803357A EP 2070100 B1 EP2070100 B1 EP 2070100B1
Authority
EP
European Patent Office
Prior art keywords
switching mechanism
switching
protection device
fault current
circuit breaker
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.)
Not-in-force
Application number
EP08803357A
Other languages
German (de)
English (en)
Other versions
EP2070100A1 (fr
Inventor
Andreas Mundt
Johann Herrmann
Gerald NÖRL
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2070100A1 publication Critical patent/EP2070100A1/fr
Application granted granted Critical
Publication of EP2070100B1 publication Critical patent/EP2070100B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/128—Manual release or trip mechanisms, e.g. for test purposes

Definitions

  • the present invention relates to a switching mechanism of a residual current device for switching a circuit breaker. Furthermore, the invention relates to a residual current device and a system comprising a residual current device and arranged next to the residual current device circuit breaker.
  • Residual current devices are switching devices that switch off within less than 200ms in the event of a fault, in particular an insulation fault, in electrical equipment and systems. That is, a residual current device is a protection device in power grids. This disconnects the connected monitored circuit from the rest of the power grid when power is flowing the wrong way, such as through a person's body. For this purpose, the residual current device compares the current strength of the outgoing current with the strength of the backflowing current.
  • a residual current device connected between an electrical network and an electrical device causes the currents to flow through a transducer, ie, both from the feeding network to the electrical device and vice versa. As long as the insulation in the electrical appliance is intact, the flow back and forth are equal. However, if the insulation is faulty, a part of the current flowing into the electrical appliance may flow via the fault, ie the insulation fault, and the housing also via a person who operates, for example, the electrical appliance.
  • a fault current protection device can detect a magnetic imbalance via its converter already from a difference of 10mA and trigger the switching off of the current.
  • Residual current circuit breakers are prescribed for certain electrical installations, such as electrical installations on construction sites, in residential buildings, in functional buildings such as office buildings or department stores, and in industry.
  • Residual current devices protect persons in the event of a fault from dangerous body currents, both indirect and direct contact, by immediate switch-off. At the same time, they are the only comprehensive protection of the short-circuit and ground-fault protective devices, even for fault currents that occur in so-called imperfect short circuits and earth faults, where fuses and MCBs do not switch off, as these fault currents are sometimes far below the rated currents of these protective devices lie.
  • RCCBs residual current and circuit breakers
  • DI protection For retrofitting to miniature circuit breakers, so-called two-, three- and four-pole FI blocks, rated currents of 6 to 125A and rated residual currents of 10, 30, 100 and 300 mA are available.
  • DI protection When residual current sensing residual current protective devices require auxiliary voltage, they are generally referred to as residual current protective devices (DI protection or DI block).
  • Mains-voltage-independent FI blocks and mains-voltage-dependent DI blocks are residual current protective devices that do not have their own switch contacts, but are attached as an additional device to a circuit breaker (MCB) and use its contacts.
  • the switching mechanism in the residual current device ie in the FI block or in the DI block, is connected to the mechanism of the circuit breaker via a coupling.
  • An occurring fault current generated in the residual current device an electrical pulse.
  • a magnetic relay uses the pulse to trigger the switching mechanism in the residual current device, ie in the FI block or in the DI block.
  • An FI block or DI block is thus not a switching device, but a protective device.
  • a trip unit in particular an electromagnetic release, the residual current device serves to convert a voltage signal into a mechanical movement in an occurring fault current flow.
  • the mechanical movement may be, for example, the rotation of a shift lever or shift bar, or the linear movement of a plunger.
  • the object of the invention is to provide a switching mechanism of a residual current device that simply stores energy, such as spring energy, to use them to trigger a coupled via a clutch circuit breaker and thereby disconnect the downstream load circuit from the grid. Furthermore, the switching mechanism and a residual current device with such a switching mechanism be simple and compact. Furthermore, a system comprising a residual current device and a circuit breaker is to be created which interrupts the circuit in a simple and rapid manner in the event of a fault current.
  • the object is achieved by a switching mechanism for a residual current device for switching a circuit breaker, which is arranged on a carrier board having a rotatably mounted handle, a handle coupled to the bracket, wherein a first end of the bracket outside the axis of rotation of the Grip disposed on the handle, and a hinged at the second end of the strap latch having a groove for guiding a pin of a rotatably mounted shift lever of the switching mechanism, comprising a rotatably mounted half shaft with a Verklinkungskante, wherein the Verklinkungskante for gripping an end of the Pawl is formed, comprising a connected to the pawl and / or the shift lever first spring element which upon movement of the Pawl and / or the shift lever is elastically tensioned, solved.
  • a residual current device is also a residual current device.
  • Such a switching mechanism can simply save energy to use this to move a lever of a coupled via a clutch circuit breaker. Furthermore, such a switching mechanism is simple and compact.
  • the switching device can easily store by moving the handle of the switching mechanism spring energy and use this finding a fault current and related tripping by an electrical or electromagnetic triggering element to activate via a fastened to the shift lever clutch the switching mechanism of a mounted circuit breaker and thereby the circuit interrupt.
  • the coupling is arranged in the region of the coupling point of the circuit breaker, wherein the rotation angle and the torque of the shift lever are tuned to the circuit breaker.
  • the switching mechanism itself has no contact points, which must be closed and opened with great force or with high torque. The operation of the circuit breaker via the coupling takes place with a comparably low torque.
  • the switching mechanism can be made sufficiently compact, in particular at most one division unit wide.
  • a division unit has a width of 18 mm. This also corresponds to the preferred width of a residual current device that includes the switching mechanism.
  • the switching mechanism has been specially developed for use in residual current protective devices or residual current protective devices that do not have their own contact system but trigger a circuit breaker via a coupling.
  • the switching mechanism is arranged on a carrier board.
  • the carrier board can form a part, in particular a side element, of the housing of the residual current device, in which the switching mechanism is arranged.
  • the carrier board serves as a base element for fastening the individual components of the switching mechanism.
  • the switching mechanism has a rotatably mounted handle. This can be moved manually, so that the switching mechanism can be switched on and off by pivoting the handle.
  • the handle is coupled to a bracket which serves to rotate the shift lever of the switching mechanism.
  • a first end of the bracket is located outside the axis of rotation of the handle on the handle.
  • a latch is articulated on the bracket, in particular at the second end of the bracket.
  • Guided means that the pawl is rotatably mounted on the bracket.
  • an axis of rotation can be provided which rotatably connects the bracket, in particular the second end of the bracket, with the pawl. Upon movement of the handle and thus the bracket, the pawl is also moved.
  • the pawl further comprises a groove for guiding a pin of a rotatably mounted shift lever of the switching mechanism.
  • the groove is preferably provided in the upper third of the pawl.
  • the pin of the shift lever of the switching mechanism is arranged outside the axis of rotation of the shift lever on this, so that upon movement of the pawl, the shift lever is rotated due to the guidance of the pin in the groove.
  • the groove of the pawl serves as a so-called link guide for the pin.
  • the groove allows a pivoting movement of the pawl when it is pivoted by the bracket or the handle.
  • the shift lever serves as an interface to the circuit breaker.
  • a switching mechanism which can likewise be fastened to the clutch, of the circuit breaker can be switched directly.
  • the switching lever of the switching mechanism serves as a direct interface to a mounted circuit breaker.
  • the shift lever the is in operative connection with the clutch, switched, and not any switching shaft at any other position in the residual current device, which in turn controls the circuit breaker with another bracket and another lever. This principle saves parts, installation space and material costs.
  • the switching mechanism also has a rotatably mounted half-wave, which in turn has a Verklinkungskante on.
  • the Verklinkungskante is designed to grip one end of the pawl.
  • the Verklinkungskante is preferably provided at the end of the half-wave.
  • the half-wave or the Verklinkungskante the half-wave are arranged on the support plate of the switching mechanism, that the Verklinkungskante can reach the groove of the pawl facing away from the pawl, thereby causing a rotation of the pawl to the Verklinkungskante.
  • the switching mechanism preferably further comprises a connected to the pawl and / or the shift lever first spring element, which is resiliently tensioned in a movement of the pawl and / or the shift lever.
  • the first spring member When switching the switching mechanism, i. upon movement of the handle from an off position to an on position, the first spring member is urged or resiliently urged.
  • the bracket and thus the pawl are moved.
  • the shift lever of the switching mechanism is further rotated. If the first spring element attached to the pawl or on the shift lever, this is tensioned in a movement of the pawl or the shift lever in the direction of the handle.
  • the switching mechanism In case of a fault current, the switching mechanism is unlatched. This means that the half-wave is rotated by an electromagnetic release about its axis of rotation, thereby releasing the Verklinkungskante the pawl, which has hooked at the Einschaltvorgang to the Verklinkungskante the half-wave again.
  • the free pawl can no longer support the torque applied to it when it is switched on and no longer prevents the shift lever from turning back into its off position with the aid of the first spring element, preferably a torsion spring.
  • the handle which is normally held in its on position by the pulling force in the bracket, can now, driven by a weak handle spring, move back to its off position.
  • the clutch is attached on the one hand to the shift lever of the switching mechanism and on the other hand to a switching mechanism, in particular a shift lever, the circuit breaker. This can be done by a movement of the shift lever of the switching mechanism described above, a switching of the switching mechanism of the circuit breaker. Only the clutch connects the two levers.
  • the coupling is matched in shape to the mounted circuit breaker. It protrudes from the residual current device in the circuit breaker and thereby contributes one of the coupling contour of the switching mechanism of the circuit breaker inverse contour, so that it engages directly in the switching mechanism of the circuit breaker.
  • the handles of the switching mechanisms of the residual current device and the circuit breaker are not directly coupled because the user must first turn on the residual current device before the circuit breaker can be turned on. If the user tried to turn on the circuit breaker before or at the same time to the residual current device, the clutch of the residual current circuit breaker not yet activated would trigger the circuit breaker before its contacts are even closed. The circuit breaker is virtually impossible to turn on, as long as the residual current device is not in "on" position.
  • the independent handles offer the user another advantage.
  • the user recognizes at the position of the handles which device, whether fault current protective device or circuit breaker has caused the disconnection, and thus which fault, whether a short circuit or a ground fault exists. This makes it easier for the user to search for the source of the error. If, for example, the handle of the residual current protective device is in the "on position” and the handle of the circuit breaker is in the "off position", there is a short circuit or an overload of the consumer network.
  • the residual current device has detected a fault current, which was caused by an isolating fault or by touching a live part by a person, and via the clutch Separation of the load circuit from the network caused by the circuit breaker.
  • the carrier board at least partially forms a housing element of the residual current device, in which the switching mechanism is arranged. That is, the carrier board may for example form one or more side elements, a cover element and / or a bottom element of the residual current device. As a result, the residual current device can be made extremely compact.
  • the carrier board is used to attach the individual elements of the switching mechanism. Due to the attachment of the shift lever, the handle, the half-wave and the first spring element to the carrier board, these elements can be properly positioned to each other.
  • the first spring element may for example be fastened with one end to the carrier board and with the other end to the pawl or the shift lever. This causes the first spring element is tensioned during a movement of the pawl or the shift lever and thus exerts a force on the pawl or the shift lever.
  • the carrier board is preferably formed from plastic.
  • a switching mechanism is further characterized in that it comprises a second spring element which is connected to the rotatably mounted half-wave.
  • the second spring element exerts a force on the half-wave, so that it presses from below against the latched or hinged pawl.
  • the pawl remains hanging after the switch-on at Verklinkungskante and thus supports the force exerted on the pawl torque, which is exerted by the first spring element from.
  • the Verklinkungskante ensures that the applied spring energy initially stored.
  • the pawl By a movement of the half-wave away from the lower end of the pawl, the pawl is released, so that they open they can no longer support torque applied when switching on. After the release of the pawl rotates the first spring element, preferably a torsion spring, the pawl and the shift lever back to their off positions. The switching mechanism of the activated circuit breaker is then triggered via the coupling.
  • the first spring element preferably a torsion spring
  • the half-wave In order to realize the release of the pawl from the Verklinkungskante, the half-wave must be rotated against the force applied by the second spring element force on the half-wave. This is done by an electric or electromagnetic release.
  • This electrical or electromagnetic trigger serves to convert a voltage signal into a mechanical movement when a fault current flow occurs.
  • a plunger of the electric or electromagnetic release is preferably moved in such a way that it rotates the half-shaft counter to its torque acting on it and thus releases the lower end of the pawl.
  • the plunger preferably meets the end of the half-wave.
  • Preferred is a switching mechanism in which the switching mechanism has at least one electrical or electromagnetic release, comprising a movably mounted plunger for actuating the half-wave. That is, the electric or electromagnetic release is arranged on the support plate of the switching mechanism. It is conceivable that a plurality of electrical or electromagnetic triggers, which can touch the half-wave in various ways, are provided.
  • a switching mechanism which has a coupling lever coupled to the half-shaft, which is mounted concentrically to the half-wave of the switching mechanism has.
  • the apply lever allows the halfwave to be rotated by various electric or electromagnetic actuators against the force exerted thereon by the second spring member to release the lower end of the pawl.
  • the compatibility with various arranged release systems is made by the fact that the half-wave both directly through the plunger of a classic electromagnetic Trigger as well as indirectly via the apply lever from the ram of a new compact electromagnetic actuator.
  • the so-called new compact electromagnetic release is preferably arranged directly below the handle or the bracket of the switching mechanism. As a result, the new compact electromagnetic release is easily accessible without the switching mechanism, ie, the handle, the bracket or the latch must be removed.
  • Concentrically mounted to the half-wave of the switching mechanism means that the axis of rotation of the half-wave and the axis of rotation of the landing lever are coaxial with each other.
  • the application lever is multifunctional. That is, on the one hand, it has the task that when the electromagnetic release is triggered below the handle, the plunger of the electromagnetic release presses down on the Anlegehebel, rotated the half-wave, the pawl released and thereby the switching mechanism is triggered.
  • the bow of the switching mechanism can be designed in various ways.
  • the bracket represents the connecting piece between the handle and the pawl of the switching mechanism. That is, over the bracket is moved with a movement of the handle, the pawl, and vice versa.
  • the bracket is preferably designed such that it takes up as little space below the handle.
  • Particularly preferred is therefore a switching mechanism in which the bracket has at least partially an L-shaped form. That is, the end of the bracket, which is mounted on the handle of the switching mechanism, preferably has an L-shaped form or an L-shaped course. This allows one leg of the L-shaped formed portion of the bracket at least partially horizontally can be arranged.
  • the bracket of the shift lever, pawl and the half-wave of the switching mechanism can be arranged next to the handle and not below the handle of the switching mechanism.
  • the space below the switching mechanism can remain free for the attachment of a compact electromagnetic release. That is, the specially shaped bracket, it is possible to remove an electromagnetic release below the handle in the on position of the switching mechanism in case of failure and to replace it with a non-defective, without having to open the already fully assembled switching mechanism.
  • the bracket uses the space above the electromagnetic release to fulfill its function as a link.
  • a switching mechanism is preferred in which the coupling has a driver.
  • the driver is designed such that it moves parallel to the movement of the shift lever of the switching mechanism during a movement of the shift lever of the switching mechanism in an off position the corresponding lever of the switching mechanism arranged next to the switching mechanism and thereby trigger the switching mechanism of the circuit breaker and tear his contacts can.
  • the switching mechanism has a freewheel in the clutch, ie in the driver for the circuit breaker between the shift lever of the switching mechanism and the concentric mounted carrier.
  • the residual current device ie the FI or DI block
  • the driving mechanism has a freewheel in the clutch, ie in the driver for the circuit breaker between the shift lever of the switching mechanism and the concentric mounted carrier.
  • the residual current device ie the FI or DI block
  • the driving mechanism has a freewheel in the clutch, ie in the driver for the circuit breaker between the shift lever of the switching mechanism and the concentric mounted carrier.
  • the residual current device ie the FI or DI block
  • a rotation of the clutch ie the driver
  • a weak freewheel torsion spring ensures that the catch is turned back to its rest position after free running.
  • a switching mechanism which has a test button with a NUfederelement, in particular a NUblattfeder, is also preferred. It is particularly preferred if the sketchffederelement the test button is guided on one side by at least one cylindrical element, in particular by two pins, which press the fürfederelement on a terminal of the switching mechanism.
  • the test button is advantageously arranged for reasons of space within the switching mechanism. In this case, the test button is arranged in particular between the handle and the shift lever of the switching mechanism on the carrier board.
  • the test button presses on a scholarfederelement, in particular a leaf spring, which is also the return element and contact element.
  • the tip of the fürffederettis touches a movable leg of the first spring element, in particular the torsion spring, the shift lever, provided that it is in its on position, and thus closes the test circuit when pressing the test button.
  • the leaf spring does not reach the movable leg of the first spring element of the shift lever when the shift lever is in the off position. It is not possible to close the test circuit when the switching mechanism is switched off. Immediately after closing the circuit, it is immediately torn open again, because the test current causes the switching mechanism to be triggered and the shift lever and thus the movable leg to be driven into its off position.
  • the test spring element is preferably guided on one side by two cylindrical elements, in particular by two pins, which press the test spring element onto a connection terminal of the switching mechanism.
  • the sketchfederelement or the fürblattfeder is to close his / her right end preferably in two pins led. These ensure that the end of the fürffederides or the fürblattfeder presses on a terminal of the residual current device, ie the FI block, in which the switching mechanism including the test button is arranged. It is further preferred if the first spring element of the shift lever of the switching mechanism has a snap-in plate for receiving a contact element, which is seconded to a arranged on the switching mechanism test resistor has.
  • the test circuit is still closed by the first spring element, in particular the torsion spring, the shift lever is supported on the small snap sheet, which serves a scholarwiderstand subsequently after complete assembly of the switching mechanism including support board and closed lid board by snapping a little bit of the test resistor ,
  • the first spring element in particular the torsion spring
  • the shift lever is supported on the small snap sheet, which serves a scholarwiderstand subsequently after complete assembly of the switching mechanism including support board and closed lid board by snapping a little bit of the test resistor .
  • the object is achieved by a residual current device for switching a circuit breaker, wherein the residual current device has a previously described switching mechanism solved.
  • a residual current device with such a switching mechanism can be made sufficiently compact, in particular at most one division unit wide.
  • the switching mechanism has been specially developed for use in residual current protective devices that do not have their own contact system but trigger a circuit breaker via a coupling.
  • At least one side element or the cover or the bottom element of the housing of the residual current device can serve as a carrier board of the switching mechanism. As a result, the dimensions of the residual current device can be kept low.
  • Such a multifunctional switching mechanism in the residual current device such residual current protective devices with a width of two division units, but also of only one division unit, as FI or DI block can be realized.
  • the switching mechanism including the test button and its components and including the trip unit, that is, the electromagnetic release, in the upper half of the residual current device in only one division unit space and is able to control a circuit breaker by turning a clutch.
  • such a residual current device due to the switching mechanism with different arranged electromagnetic triggers can be used.
  • a fault current protection device having at least one electromagnetic release, comprising a movably mounted plunger, a summation current transformer, electrical lines and terminals for electrical lines.
  • a fault current protection device having at least one electromagnetic release, comprising a movably mounted plunger, a summation current transformer, electrical lines and terminals for electrical lines.
  • the object is achieved by a system comprising a residual current device and a circuit breaker arranged next to the residual current device, in which the residual current device as described above, and wherein between the residual current device and the circuit breaker, a clutch is provided, via which the shift lever of the switching mechanism of the residual current device and a switching lever of the circuit breaker can be coupled.
  • the residual current device and the circuit breaker are designed as DIN rail mounted device. These can be arranged side by side, for example, on a DIN rail. Through the coupling, the residual current device can activate the switching mechanism of the circuit breaker and thereby interrupt the circuit upon detection of a fault current.
  • the clutch can connect the shift lever of the switching mechanism of the residual current device and the switching lever of the switching mechanism of the circuit breaker for switching the same with each other.
  • Such a system allows the switching of the switching lever of the switching mechanism of the circuit breaker and thus the triggering of the circuit breaker with a low torque.
  • the switching mechanism of the residual current device is unlatched.
  • the free pawl can no longer support the torque applied to it when it is switched on and no longer prevents the selector shaft from turning back into its off position with the aid of the first spring element, preferably a torsion spring.
  • the first spring element is tensioned by the shift lever is rotated or the pawl is pivoted.
  • the switching mechanism 1 is arranged on a carrier board 2.
  • the pawl 7 is connected via the rotatably hinged to the pawl 4 with the handle 3 of the switching mechanism 1.
  • the first end 5 of the bracket 4 is rotatably coupled to the handle 3, while the second end 6 of the bracket 4 is rotatably coupled to the applied pawl.
  • the pawl 7 has at its upper end side a groove 8 in which a pin 10 of the shift lever 9 of the switching mechanism 1 is held feasible.
  • the pin 10 of the shift lever 9 is spaced from the axis of rotation of the shift lever 9 to the shift lever 9 is arranged.
  • the pin 10 By pivoting the pawl 7, the pin 10 is guided in the groove 8 of the pawl 7, so that the shift lever 9 is rotated.
  • the lower end 13 of the pawl 7 engages in the on position of the switching mechanism 1 at the Verklinkungskante 12 of the rotatably mounted half-wave 11 a. That is, in the change of the switching mechanism 1 from an off position to the on position, the lower end 13 of the pawl 7 remains hanging on the Verklinkungskante 12 of the half-wave 11. That is, the handle 3 is rotated when switching the switching mechanism 1, he pulls over the bracket 4, the pawl 7 with it.
  • the pawl 7 hangs at its lower end 13 on the Verklinkungskante 12 of the half-wave 11, it performs in its groove 8 at the upper end of the pin 10 of the shift lever 9 also with.
  • the shift lever 9 and thus attachable to the shift lever 9 coupling to the circuit breaker are rotated so that turning on the circuit breaker is no longer hindered.
  • the handle 3 is thereby pushed over a dead center into its ON position, where it also remains, since the tensile force in the bracket 4 now advantageously exerts an inverted torque on the handle 3 after exceeding the dead center.
  • the switching mechanism 1 is unlatched. This means that the half-wave 11 is rotated by an electromagnetic release, not shown, about its axis of rotation, thereby releasing the Verklinkungskante 12 of the pawl 7, which has hooked during the switching on the Verklinkungskante 12 of the half-wave 11 again.
  • the free pawl 7 can no longer support the torque applied thereto when it is switched on and no longer prevents the shift lever 9 from turning back into its off position with the aid of the first spring element 14, preferably a torsion spring.
  • a corresponding switching mechanism of the switched circuit breaker can now be triggered.
  • the handle 3 which is normally held in its on position by the tensile force in the bracket 4 in its position, can now, driven by a weak handle spring, move back to its off position.
  • the off position of the switching mechanism 1 of the Differenzstromschutzeinrichtuhg 30 is in Fig. 2 shown.
  • the switching mechanism 1 has a connected to the shift lever 9 first spring element 14 which is resiliently tensioned in a movement of the shift lever 9.
  • first spring element 14 When switching the switching mechanism 1, ie when a movement of the handle 3 from an off position to an on position, the first spring element 14 is tensioned or resiliently acted upon.
  • the handle 3 By the movement of the handle 3 from an off position to an on position of the bracket 4 and thus the pawl 7 are moved.
  • the movement of the pawl of the shift lever 9 of the switching mechanism 1 is further rotated.
  • Such a switching mechanism 1 can simply store energy by tensioning the first spring element 14 in order to use it to move the switching lever of a circuit breaker coupled via a coupling. Furthermore, such a switching mechanism 1 is simple and compact. That is, the switching mechanism 1 can simply save by moving the handle 3 of the switching mechanism 1 spring energy and use this finding a fault current and related tripping by an electric or electromagnetic triggering element to the attachable via the shift lever 9 clutch the switching mechanism of a mounted circuit breaker activate and thereby interrupt the circuit. The angle of rotation and the torque of the shift lever 9 of the switching mechanism 1 are tuned to the circuit breaker. Such a switching mechanism 1 can be made sufficiently compact, in particular at most only one division unit wide.
  • the carrier board 2 is a side member of the housing of the differential current device 30, in which the switching mechanism 1 is arranged, is.
  • a switching mechanism 1 of a residual current device 30 is shown in the on position, wherein the switching mechanism additionally has a contact lever 17.
  • the switching mechanism 1 is designed for a residual current device, ie an FI block.
  • the application lever 17 is mounted concentrically to the half-shaft 11, wherein the application lever 17 and the half-shaft 11 are coupled together.
  • the half-wave 11 can be actuated by various electromagnetic triggers.
  • a classic electromagnetic actuator 16a is shown in FIG Fig. 4 shown. This classic electromagnetic release 16a presses from below against the half-wave 11 to this from the view of the Fig. 4 to turn clockwise.
  • the Verklinkungskante 12, the lower end 13 of the pawl free, so that they no longer acting on them torque can support.
  • a compact electromagnetic actuator 16b as in the Fig. 5 shown.
  • the plunger of the compact electromagnetic release 16b presses from above on the half-wave, to this also from the view of the Fig. 5 to turn clockwise.
  • the compact electromagnetic release 16b is arranged directly below the handle 3 of the switching mechanism 1.
  • the apply lever 17 is used. This is a multi-functional application lever 17.
  • the multifunctional application lever 17 has on the one hand the task that when the electromagnetic release 16b, the hidden plunger of the electromagnetic release 16b presses down on Anleghebel 17, the half-shaft 11 is rotated and thereby the switching mechanism. 1 is triggered.
  • the upper arm 17a of the electromagnetic actuator 16b is pushed to the left after being released from the shift lever 9, ie, away from the handle 3 of the shift mechanism 1, and thereby the pusher of the compact electromagnetic trip 16b not automatically returned to its rest position from the lower arm 17b of FIG Docking lever 17 is pressed into its rest position but without obstructing the rotation (clockwise) of the half-wave 11, which must be rotated to the remindverklinkung.
  • the compatibility with differently arranged release systems 16a, 16b is produced by the fact that the half-wave 11 can be driven both from the bottom left by the plunger of the classic release 16a and from the top right via the application lever 17 by the plunger of a compact release 16b.
  • the Fig. 6 shows a perspective view of a switching mechanism of a differential current protection device in the on position of the switching mechanism 1.
  • the half-wave 11 can be rotated by a conventional electromagnetic release 16a, not shown, to release the lower end 13 of the pawl 7.
  • the Fig. 7 shows a perspective view of a switching mechanism 1 of a residual current device 30 in the on position of the switching mechanism 1, wherein the switching mechanism 1 has a compact electromagnetic release 16b and a contact lever 17.
  • the half-wave 11 is rotated by a plunger of the compact electromagnetic release 16b, which sits directly below the handle 3 and the bracket 4. Above the compact electromagnetic release 16b, the bracket 4 at a on-position of the switching mechanism 1 a horizontal course, so that the compact electromagnetic release 16b can be easily removed from the switching mechanism 1 and from the residual current device 30, without the other components the switching mechanism 1 must be removed.
  • FIG. 8 is a perspective view of a test button 18, a beauffederides 19, a first spring element 14 and a test resistor 23 of the switching mechanism 1 is shown.
  • the sketchffederelement 19 is formed here as Kamblattfeder.
  • the sketchffederelement 19 of the test button 18 is guided on one side by two cylindrical elements 20, here in the form of two pins, which press the fürffederelement 19 on a terminal of the switching mechanism 1.
  • the test button 18 is advantageously arranged for reasons of space within the switching mechanism 1.
  • the test button 18 is advantageously arranged between the handle 3 and the shift lever 9 of the switching mechanism 1 on the carrier board 2.
  • the test button 18 presses on the fürffederelement 19, which is at the same time return element and contact element.
  • the tip of the strigffederides 19 touches when pressing the test button 19, a movable leg 14a of the first spring element 14, which is designed here as a torsion spring, the shift lever 9, provided that it is in its on position, and thus closes the test circuit.
  • the fürblattfeder 19 does not reach the movable leg 14a of the first spring element 14 of the shift lever 9 when the shift lever 9 is in the off position. Closing the test circuit with switched-off switching mechanism 1 is not possible. Immediately after closing the circuit, it is immediately torn open again, since the test current causes the switching mechanism 1 is triggered and the shift lever 9 and thus the movable leg 14 a are driven to the off position.
  • the first spring element 14 of the shift lever 9 of the switching mechanism 1 has a snap plate 21 for receiving a contact element 22, here in the form of a so-called Beinchens, which is seconded to the arranged on the switching mechanism 1 test resistor 23 on. That is, the test circuit is still closed by the first spring element 14 of the shift lever 9 is supported on the small snap plate 21, which serves the test resistor 23 subsequently after the complete assembly of the switching mechanism 1 including carrier board 2 and closed lid board by snapping the little leg 22 of Test resistor 23 record.
  • This offers the advantage that the variety of variants of the switching mechanisms is not driven by countless different test resistors 23 up.
  • snapping in as an assembly process is simple and cheap, and no additional tool is required, such as crimping, crimping or soldering.

Landscapes

  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Transmitters (AREA)

Claims (14)

  1. Mécanisme de commutation (1) pour un dispositif de protection à courant différentiel résiduel (30) pour commuter un commutateur de protection de ligne, lequel mécanisme est situé sur une platine de support (2), comportant une poignée (3) logée rotative, une branche (4) couplée à la poignée (3), une première extrémité (5) de la branche (4) étant située sur la poignée (3) en dehors de l'axe de rotation de la poignée (3), et un cliquet (7) articulé sur la deuxième extrémité (6) de la branche (4), caractérisé en ce que le cliquet comporte une rainure (8) pour le guidage d'un ergot (10) d'un levier de commutation (9) logé rotatif du mécanisme de commutation (1), comportant un demi-arbre (11) logé rotatif avec une arête d'enclenchement (12), l'arête d'enclenchement (12) étant réalisée pour prendre une extrémité (13) du cliquet (7), comportant un premier élément élastique (14) relié au cliquet (7) et/ou au levier de commutation (9), lequel élément peut être tendu élastiquement en cas de mouvement du cliquet (7) et/ou du levier de commutation (9).
  2. Mécanisme de commutation selon la revendication 1, caractérisé en ce que le mécanisme de commutation (1) comporte un couplage fixable sur le levier de commutation (9) pour commuter le mécanisme de commutation (1) du commutateur de protection de ligne.
  3. Mécanisme de commutation selon la revendication 1 ou 2, caractérisé en ce que la platine de support (2) forme au moins en partie un élément de boîtier du dispositif de protection à courant différentiel résiduel (30).
  4. Mécanisme de commutation selon l'une des revendications 1 à 3, caractérisé en ce que le mécanisme de commutation (1) comporte un deuxième élément élastique (15) qui est relié au demi-arbre (11) logé rotatif.
  5. Mécanisme de commutation selon l'une des revendications 1 à 4, caractérisé en ce que le mécanisme de commutation (1) comporte au moins un déclencheur électromagnétique (16a, 16b), comportant un poussoir logé mobile, pour actionner le demi-arbre (11).
  6. Mécanisme de commutation selon l'une des revendications 1 à 5, caractérisé en ce que le mécanisme de commutation (1) comporte un levier d'appui (17) couplé au demi-arbre (11) et qui est logé concentriquement par rapport au demi-arbre (11) du mécanisme de commutation (1).
  7. Mécanisme de commutation selon l'une des revendications 1 à 6, caractérisé en ce que la branche (4) présente au moins en partie une forme de L.
  8. Mécanisme de commutation selon l'une des revendications 1 à 7, caractérisé en ce que le couplage comporte un entraîneur.
  9. Mécanisme de commutation selon l'une des revendications 1 à 8, caractérisé en ce que le mécanisme de commutation (1) comporte une touche de contrôle (18) avec un élément élastique de contrôle (19), en particulier un ressort de contrôle à lame.
  10. Mécanisme de commutation selon la revendication 9, caractérisé en ce que l'élément élastique de contrôle (19) est guidé d'un côté par au moins un élément (20), en particulier un ergot cylindrique, qui pousse l'élément élastique de contrôle (19) sur une borne de raccordement du mécanisme de commutation (1).
  11. Mécanisme de commutation selon l'une des revendications 1 à 10, caractérisé en ce que le premier élément élastique (14) du levier de commutation (9) est une plaque à encliquetage (21) destinée à recevoir un élément de contact (22) qui est situé sur une résistance de contrôle (23) située sur le mécanisme de commutation (1).
  12. Dispositif de protection à courant différentiel résiduel pour commuter un commutateur de protection de ligne, caractérisé en ce que le dispositif de protection à courant différentiel résiduel (30) comporte un mécanisme de commutation (1) selon l'une des revendications 1 à 11.
  13. Dispositif de protection à courant différentiel résiduel selon la revendication 12, caractérisé en ce que le dispositif de protection à courant différentiel résiduel (30) comporte au moins un déclencheur électromagnétique (16a, 16b), comportant un poussoir logé mobile, un convertisseur de courant de somme, des lignes électriques et une borne de raccordement pour des lignes électriques.
  14. Système comportant un dispositif de protection à courant différentiel résiduel et un commutateur de protection de ligne situé à côté du dispositif de protection à courant différentiel résiduel, caractérisé en ce que le dispositif de protection à courant différentiel résiduel (30) est réalisé selon la revendication 12 ou 13, un couplage étant prévu entre le dispositif de protection à courant différentiel résiduel (30) et le commutateur de protection de ligne, par l'intermédiaire duquel le levier de commutation (9) du mécanisme de commutation (1) du dispositif de protection à courant différentiel résiduel (30) et un levier de commande du commutateur de protection de ligne peuvent être couplés au moins temporairement.
EP08803357A 2007-09-27 2008-08-29 Mécanisme de commutation d'un dispositif de protection contre les courants de court-circuit, dispositif de protection contre les courants de court-circuit et système doté d'un dispositif de protection contre les courants de court-circuit et d'un disjoncteur Not-in-force EP2070100B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007046356A DE102007046356B4 (de) 2007-09-27 2007-09-27 Schaltmechanik einer Fehlerstromschutzeinrichtung, Fehlerstromschutzeinrichtung sowie System mit einer Fehlerstromschutzeinrichtung und einem Leitungsschutzschalter
PCT/EP2008/061358 WO2009043651A1 (fr) 2007-09-27 2008-08-29 Mécanisme de commutation d'un dispositif de protection contre les courants de court-circuit, dispositif de protection contre les courants de court-circuit et système doté d'un dispositif de protection contre les courants de court-circuit et d'un disjoncteur

Publications (2)

Publication Number Publication Date
EP2070100A1 EP2070100A1 (fr) 2009-06-17
EP2070100B1 true EP2070100B1 (fr) 2010-09-29

Family

ID=39952302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08803357A Not-in-force EP2070100B1 (fr) 2007-09-27 2008-08-29 Mécanisme de commutation d'un dispositif de protection contre les courants de court-circuit, dispositif de protection contre les courants de court-circuit et système doté d'un dispositif de protection contre les courants de court-circuit et d'un disjoncteur

Country Status (7)

Country Link
EP (1) EP2070100B1 (fr)
CN (1) CN101568984B (fr)
AT (1) ATE483247T1 (fr)
BR (1) BRPI0806103A2 (fr)
DE (2) DE102007046356B4 (fr)
RU (1) RU2474001C2 (fr)
WO (1) WO2009043651A1 (fr)

Cited By (1)

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CN103426698A (zh) * 2012-05-22 2013-12-04 哥维斯股份公司 具有自测试装置的借助剩余电流操作的断路器

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010062792B4 (de) * 2010-12-10 2019-08-08 Siemens Aktiengesellschaft Auslösevorrichtung eines Fehlerstromschutzschalters
DE102011082124B4 (de) * 2011-09-05 2019-01-31 Siemens Aktiengesellschaft Schutzschaltgerät mit Lichtleiter und Leuchtdiode
ITMI20131033A1 (it) * 2013-06-21 2014-12-22 Gewiss Spa Interruttore differenziale
CN112863864B (zh) * 2020-12-31 2022-05-03 宁波海融电器有限公司 一种圆柱全干补偿电容器

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DE2115034B2 (de) * 1971-03-29 1977-07-21 Brown, Boveri & Cie Ag, 6800 Mannheim Schutzschalter mit ueberstrom-, kurzschluss- und fehlerstromschutz
US4399420A (en) * 1981-09-11 1983-08-16 Square D Company Main circuit breaker
FR2589627B1 (fr) * 1985-10-31 1988-08-26 Merlin Gerin Mecanisme de commande pour disjoncteur electrique a basse tension
FR2615323B1 (fr) * 1987-05-11 1989-06-30 Merlin Gerin Disjoncteur modulaire a bloc declencheur auxiliaire associe a un bloc disjoncteur multipolaire
DE4116454A1 (de) * 1991-05-18 1992-11-19 Licentia Gmbh Mechanismus fuer einen selbstschalter
GB2295275B (en) * 1994-11-15 1998-08-12 Matsushita Electric Works Ltd Circuit breaker
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CN2407450Y (zh) * 2000-01-29 2000-11-22 浙江德力西电器股份有限公司 小型断路器的操作机构
CN1325123A (zh) * 2000-05-18 2001-12-05 上海奥富捷电气终端成套厂 具有模块结构断路单元的多路断路器
CN1215515C (zh) * 2002-04-16 2005-08-17 正泰集团公司 一种小型断路器的操作机构
FR2859816B1 (fr) * 2003-09-11 2006-04-07 Legrand Sa Dispositif de coupure de courant electrique a discrimination complete d'etats
CN1306535C (zh) * 2004-02-11 2007-03-21 正泰集团股份有限公司 一种剩余电流动作脱扣断路器的辅助脱扣器的动作机构

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103426698A (zh) * 2012-05-22 2013-12-04 哥维斯股份公司 具有自测试装置的借助剩余电流操作的断路器
CN103426698B (zh) * 2012-05-22 2016-12-28 哥维斯股份公司 具有自测试装置的借助剩余电流操作的断路器

Also Published As

Publication number Publication date
WO2009043651A1 (fr) 2009-04-09
RU2474001C2 (ru) 2013-01-27
RU2009122482A (ru) 2010-12-20
CN101568984A (zh) 2009-10-28
EP2070100A1 (fr) 2009-06-17
ATE483247T1 (de) 2010-10-15
DE502008001433D1 (de) 2010-11-11
BRPI0806103A2 (pt) 2011-08-30
CN101568984B (zh) 2012-03-28
DE102007046356A1 (de) 2009-04-23
DE102007046356B4 (de) 2009-12-10

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