EP3227901B1 - Differenzialschutzvorrichtung - Google Patents

Differenzialschutzvorrichtung Download PDF

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Publication number
EP3227901B1
EP3227901B1 EP15820215.0A EP15820215A EP3227901B1 EP 3227901 B1 EP3227901 B1 EP 3227901B1 EP 15820215 A EP15820215 A EP 15820215A EP 3227901 B1 EP3227901 B1 EP 3227901B1
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EP
European Patent Office
Prior art keywords
voltage
differential
electrical
circuit
differential protection
Prior art date
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Active
Application number
EP15820215.0A
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English (en)
French (fr)
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EP3227901A1 (de
Inventor
Hichem Chetouani
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Hager Electro SAS
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Hager Electro SAS
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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
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
    • 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
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/346—Details concerning the arc formation chamber
    • 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
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H2009/347—Stationary parts for restricting or subdividing the arc, e.g. barrier plate using lids for closing the arc chamber after assembly

Definitions

  • the present invention relates to a differential protection device, a differential circuit breaker comprising such a differential protection device, a differential switch comprising such a differential protection device and a method for controlling at least one electrical device, preferably at least one cut-off device, using a differential protection device.
  • this differential circuit breaker comprises, on the one hand, a number of cut-off devices, and on the other hand, a differential protection device. It may for example be a bipolar differential circuit breaker, the differential circuit breaker then comprising a differential protection device and two cut-off devices, or a four-pole differential circuit breaker, the differential circuit breaker then comprising four cut-off devices and a protection device. differential.
  • the breaking devices may be circuit breakers of magnetothermic type, which, for example, comprise a thermal actuator and a magnetic actuator able to trigger the opening of contacts according to two different types of defects (respectively overload on the line to be protected or short circuit on the line to be protected).
  • the cut-off devices are switches that may be able to allow manual opening or closing of the contacts by means of a control lever of the cut-off device and automatic opening of the contacts through the switch.
  • differential module for example.
  • Each of the switching devices is associated with an input terminal and an output terminal, intervening therebetween with switch contacts, at least one of which is movable under the control of a mechanism commonly known as a lock.
  • this mechanism is itself under the control of at least one triggering member, such as for example a magnetic tripping member and / or a thermal tripping member, capable of provoking if necessary a command in opening of the contacts of the switch.
  • triggering member such as for example a magnetic tripping member and / or a thermal tripping member
  • the differential protection device is equipped with a fault detector capable of detecting the presence of a differential current between the electrical lines to be protected or between an electrical line to be protected and earth, this defect is commonly called differential defect.
  • the differential protection device is also equipped with a mechanism commonly called differential lock, able to intervene triggering on the mechanism of at least one of the cut-off devices.
  • the present invention is more particularly the case where the multipole differential protection device or modular differential switch concerned is what is called a modular device.
  • the housing of such a modular device has two main faces parallel to one another.
  • the width of the modular apparatus is equal to the distance separating these main faces from one another.
  • the width of the modular device is then a multiple of a given basic module common to all modular devices of the same type.
  • the cut-off devices are usually arranged parallel to one another and they all have the same width equal to the basic module.
  • the differential protection device also extends most often to date parallel to the cut-off devices, being in practice attached to them at one or the other end of the alignment that it shape and width it, equal to three times the basic module.
  • the overall width of a four-pole differential circuit breaker for example is traditionally equal to seven times the basic module.
  • the differential protection device is reduced to an equal width of four thirds of a module, which, for a differential circuit breaker of a width equal to four modules, leaves a width of two thirds a module width for each breaking device.
  • differential circuit breakers have the disadvantage that the short-circuit performance, particularly cut-off devices, are relatively low. These differential circuit breakers also have the disadvantage that heating of the cut-off devices is difficult to contain.
  • the document WO 2012/109684 A1 discloses a differential protection device according to the preamble of claim 1.
  • the present invention therefore aims to provide a differential protection device for a differential circuit breaker advantageously to avoid these disadvantages while leading to a comparable compactness of the differential circuit breaker.
  • the subject of the invention is a differential protection device comprising a differential fault detector comprising a first electrical circuit and a second electrical circuit, the first electrical circuit comprising a coil, said differential fault detector further comprising a torus which can be traversed at least once by at least one conductor, the coil being wound around the core and connected to the first electrical circuit for applying a first voltage to the first electrical circuit when a magnetic flux is induced in the core, characterized in that said differential fault detector comprises at least one voltage multiplication device connected to the second electrical circuit and capable of applying a second voltage to the second electric circuit according to the first voltage, said multiplication device comprises at least one electrical energy storage device, the multiplication device is adapted to apply the second voltage to the second circuit such that the second voltage is greater than the first voltage by a multiplicative factor greater than 2.
  • the differential defect detector may be provided with a torus of reduced size compared to known toroids of the prior art so that the dimensions of the differential protection device can be further reduced, and this while keeping a time of tripping in the event of a differential defect of less than 300 ms (time imposed by standards on differential products.
  • the multiplying device is able to apply the second voltage to the second circuit such that the second voltage is greater than the first voltage by an ideal multiplying factor greater than 2.
  • the coefficients for multiplication devices are given for perfect, ideal, lossless voltage multipliers.
  • voltage doublers often have a real coefficient substantially equal to 1.4 and not 2.
  • the voltage multiplier of the differential protection device is capable of applying a second voltage greater than the first voltage by a multiplicative factor less than or equal to 8.
  • the voltage multiplier of the differential protection device is adapted to apply a second voltage greater than the first voltage by an ideal multiplicative factor less than or equal to 8.
  • the voltage multiplier may be a voltage tripler, a voltage quadrupeater, a voltage multiplier, or a voltage octupler.
  • the size of the core as well as the width of the differential protection device can be reduced while keeping a time of triggering sufficiently short.
  • the differential fault detector may comprise an intermediate electrical circuit connected to the first electrical circuit via a conditioning module capable of supplying a conditioned voltage, depending on the first voltage, to the intermediate circuit, the circuit intermediate electrical circuit being preferably connected to the second electrical circuit via the voltage multiplier device.
  • the electrical energy storage device is an electrical capacitor having a capacitance between 470 nF and 2200 nF.
  • the electrical energy storage device is a set of electrical capacitors having a capacitance between 470 nF and 2200 nF.
  • the coil may comprise a number of turns between 800 turns and 1100 turns.
  • the voltage multiplying device may comprise an AC / DC converter capable of converting an alternating voltage applied to the first circuit and / or, where appropriate, to the intermediate circuit into a DC or quasi-DC voltage applied to the second circuit.
  • the invention also relates to a differential circuit breaker comprising at least two cut-off devices and a differential protection device according to the invention, the cut-off devices then each comprising at least one conductor passing through the core of the at least one differential protection device. a recovery.
  • the invention proposes a differential circuit breaker of compact dimensions with satisfactory performance to the need of a user.
  • the differential circuit breaker may comprise four cut-off devices each comprising a conductor passing through the toroid of the differential protection device respectively at least once, the differential protection device and the cut-off devices being preferably arranged such that Thus, two cut-off devices are respectively arranged on either side of the differential protection device.
  • the cutoff device connected to the neutral may be, relative to the front face, disposed at the right end or at the left end of the circuit breaker.
  • the differential protection device has a first width substantially equal to the width of a basic module.
  • the cutoff device or devices may have a second width substantially equal to 0.75 times the width of a basic module.
  • a base width may correspond substantially to a width of about 17.5 mm. This basic width is standardized between the various manufacturers of electrical equipment type modular circuit breaker and is generally between 17 and 18 mm according to the manufacturers.
  • this dimension of the cut-off device allows a breaking chamber of dimension large enough to meet the requirements with respect to the performance of the circuit breaker in short-circuit test, while maintaining the compactness of the circuit breaker.
  • the additional space available compared to the solutions of the prior art allow the use of cutting devices of sizes up to 40 amps and breaking capacity up to 10 kAmpere.
  • the sending of the command intended for the electrical apparatus may consist in applying a force on a control member of the cut-off device by means of an actuator.
  • the invention relates to a differential protection device 20 capable of detecting differential fault currents and / or leakage currents to earth.
  • the differential protection device 20 comprises a differential fault detector 22 comprising a first electric circuit 24 and a second electric circuit 26.
  • the first electrical circuit 24 comprises a coil 4.
  • the differential fault detector 22 further comprises a torus 1 which can be traversed at least once by at least one conductor 3.
  • the coil 4 is wound around the torus 1 and connected to the first one. electrical circuit 24 for applying a first voltage U2 in the first circuit 24 when a magnetic flux is induced in the torus 1.
  • the differential fault detector 22 comprises at least one voltage multiplication device 6 connected to the second electrical circuit 24 and capable of applying a second voltage V2 to the second electric circuit 26 as a function of the first voltage U2.
  • the voltage multiplication device 6 comprises at least one device 7 for storing electrical energy.
  • the voltage multiplication device 6 is able to apply the second voltage V2 in the second circuit 26 so that the second voltage V2 is greater than the first voltage U2 by a factor greater than two.
  • the voltage multiplying device 6 of the differential fault detector 22 disclosed in FIG. figure 1 can be a tripler of voltage, a voltage quadruple, a sextupleur of voltage or a voltage octupler.
  • the differential fault detector 22 may comprise a third electrical circuit 28 comprising a comparison module 8.
  • the electrical energy storage device 7 can apply the third voltage V3 to the third electrical circuit 28.
  • At least one device 6 for multiplying the voltage connected to the second electric circuit 26 is capable of applying a second voltage V2 to the second electric circuit 26 as a function of the first voltage U2.
  • the torus 1 may be traversed at least once by at least one conductor 3. In the case disclosed in the figure 1 , torus 1 is crossed by four conductors 3 corresponding to the four phases. The appearance of the first voltage U2 in the first electrical circuit 24 then indicates that the sum of the magnetic fields generated by the conductors 3 is not zero.
  • the differential fault detector 22 may furthermore comprise an intermediate electrical circuit 25 connected to the first electrical circuit 24 via a conditioning module 5 capable of supplying a conditioned voltage V1 to the intermediate circuit 25 as a function of the first voltage U2. .
  • the intermediate circuit 25 can be connected to the second electric circuit 24 via the voltage multiplication device 6, the first voltage U2 then constitutes the input voltage of the conditioning module 5.
  • the conditioning module 5 may be able to perform the following main functions: filtering, protection against strong currents, EMC adaptation and others.
  • the output of the conditioning module 5 then constitutes the input of the voltage multiplier 6.
  • the voltage multiplier 6 makes it possible, on the one hand, to amplify the first voltage U 2 and / or the conditioned voltage V 1 and the storage of the energy required to trigger a relay 10 in the device 7 for accumulating electrical energy or several device 7 for storing electrical energy.
  • the devices 7 for storing electrical energy can be capacitors 7.
  • the capacitors 7 can be called capacitors 7.
  • the second voltage V2 is continuously compared to a reference using the comparison module 8.
  • a command is given to a control member 9 to discharge the capacitor 7 in the relay 10 to help from third electrical circuit 28.
  • the triggering of the relay 10 allows the unlocking of a differential lock 11 thus causing contact opening 12.
  • a torus 1 of relatively small volume can be used.
  • a relatively small torus 1 makes it possible to reduce the costs of the differential defect detector 22.
  • the integration of a torus 1 of reduced size further simplifies the integration of it into the product.
  • the figure 2 discloses a voltage multiplication device 6a of magnitude two, i.e., a voltage doubler 6a.
  • a voltage doubler 6a for a differential fault detector 22 is known from the prior art FR 2,777,110 .
  • the differential fault detector 22 of the differential protection device 20 comprises a voltage multiplier device 6 of greater than two order, that is to say, a voltage tripler, a voltage quadrupeater, a sextupler of tension or an octupler of tension.
  • These second order voltage multiplication devices 6 are disclosed by way of example in FIGS. figures 3 , 5A and 5B .
  • the figures 3 and 5B disclose voltage quadruplers and the Figure 5A a voltage tripler. Comparing a second-order voltage multiplication device 6a with a second-order voltage multiplication device 6, the latter needs a substantially reduced input voltage U2, V1 compared to required by the second order voltage multiplication device 6a. Nevertheless, the second order voltage multiplication device 6 takes longer to reach the steady state of the output voltage.
  • the second order voltage multiplication devices 6 require more time to accumulate the energy required to trigger the relay 10 for a lower input voltage, which results in less voluminous cores 1 and / or a reduced number of primary passages.
  • the number of primary passes is the number of times each driver crosses the torus.
  • a small number of primary passes simplifies the manufacturing process and allows for easy tuning of the configuration of the current paths in the product, reducing the material used in the connections, reducing the heating and possibly reduce the impact of the magnetic radiation of the current paths on the other bricks in the product and reduce the overall volume of the torus and primary conductors taken in a set.
  • the reduction in the volume of the torus 1 allows the reduction of its cost and simplifies the process of its integration into the product. It also allows the increase of the section of the conductors 3 to reduce among other things the heating or the passage of a caliber to another higher caliber in less cost.
  • a second-order voltage multiplication device 6 a For a second voltage V2 worth, for example, 5.55 volts, a second-order voltage multiplication device 6 a needs an input voltage U 2, V 1 of 2.88 volts. For the same second voltage of 5.55 volts, a voltage multiplication device 6 of order four, requires an input voltage U2, V1 of only 1.5 volts.
  • the trip time of the differential fault detector 22 of the differential protection device 20 having a voltage multiplier 6 of greater than two is longer than that of the second order voltage multiplier 6, which can result in the tripping time exceeding the normative value of 300 ms or the desired target.
  • Such a reduction in the tripping time can be obtained by reducing the impedance of the torus 1. This reduction in the impedance of the core 1 is reflected in a reduction in the number of turns that the coil 4 comprises.
  • the coil 4 of the differential protection device 20 may comprise between 800 and 1 100 turns, in order to obtain a sufficiently short trip time.
  • the reduction of the trip time can be achieved by reducing the value of the storage capacity 7 to a maximum of minimum value ensuring the triggering of the relay 10, that is to say to give the relay the energy just needed for safe operation.
  • the invention also relates to a differential circuit breaker 40 comprising at least one differential protection device 20 and at least one switching device 60.
  • the differential circuit breaker 40 may, for example, consist of four cut-off devices 60 and a device 20 for differential protection.
  • the differential circuit breaker 40 may be a modular device comprising a first main face 42 and a second main face 44. figures 6 and 7 , the differential circuit breaker 40 may be arranged so that two circuit breakers 60 are arranged on either side of the differential protection device 20.
  • Each cut-off device 60 may be provided with an input terminal 62 and an output terminal 64.
  • the input terminals 62 and the output terminals 64 may be respectively linearly arranged.
  • the input terminals 62 and the output terminals 64 can also be respectively arranged equidistantly from each other.
  • the differential protection device 20 has a first width L1.
  • the cut-off devices 60 are provided with a second width L2.
  • the first width L1 is preferably substantially equal to the width of a basic module.
  • the second width for its part, can correspond to a width substantially equal to 0.75 times the width of a basic module.
  • the width of a basic module corresponds approximately to a width of 17.5 mm. This basic width is standardized between the various manufacturers of electrical equipment type modular circuit breaker and is generally between 17 and 18 mm according to the manufacturers.
  • the differential circuit breaker 40 is therefore equipped with a width equal to four modules (four times the second width L2 of the cut-off device and once the first width L1 of the differential protection device 20).
  • the width of a 17.5 mm module corresponds to the pitch of the bridging terminals that can connect the terminals 62, 64 of the cut-off devices 60.
  • the application also relates to a circuit breaker, preferably a differential circuit breaker having a mechanism for opening and closing at least one electrical contact between an upstream power line and a downstream power line.
  • the opening and closing mechanism has two stable states, a first state that can be called the "open contacts" state for which the upstream electrical line is not electrically connected to the downstream line and a second state that can be called state “closed contacts” for which the upstream power line is electrically connected to the downstream line.
  • the main function of the circuit breaker is to protect the downstream power line from faults, electrical overload type faults, short circuit, earth leakage fault.
  • the circuit breaker comprises an actuator adapted to bring the opening and closing mechanism back into the first state ("open contacts" state) in the event of overload (abnormal over-current) on the protected line.
  • the actuator is a thermal actuator adapted to deform according to its temperature.
  • the actuator may consist of a bimetallic traversed or not by the current.
  • the circuit breaker may also include a driver, preferably a heat trainer.
  • the trainer is usually the connecting part between the opening and closing mechanism and the actuator (against overloads).
  • the opening and closing mechanism of the contacts is provided with a trigger, which, when moved by the actuator, allows the opening of the contacts, that is to say allows the change of state , from the closed contact state (second state) to the open contact state (first state), of the opening and closing mechanism of the contacts.
  • the opening of the contacts can be performed when the opening and closing mechanism of the contacts passes from the second state to the first state.
  • the trigger can be provided with a protrusion able to be moved directly by the actuator in order to trigger the opening and closing mechanism of the contacts.
  • this connection can also be made via a separate part of the trigger, called coach or thermal trainer.
  • the coach can usually be mechanically guided in envelopes parts of the device and may be in contact or in pivot connection with the trigger.
  • connection can be made directly between the trigger and the (thermal) actuator.
  • the size of this function when arming and triggering the lock can become important, in fact the closing mechanism of contact closure passing from one stable state to the other generally by a rotational movement about an axis, the trigger can be also animated by a rotational movement , the angular sector swept by the mechanism can also be scanned by the protrusion of the trigger. This movement imposes the fact of having a free space allowing the free movement of the trigger during the change of state of the mechanism of opening and closing of the contacts.
  • the stroke of the coach can be important since it is directly related to the movement of the trigger during the opening maneuvers and closing contacts.
  • the guidance of the coach can also be difficult to achieve to find the right compromise between the different positions (open and / or closed contact), the good orientation of the forces during an unlocking, avoid the jamming between the trainer and the guiding parts guide and keep a precise guidance to reduce the variability of the function.
  • the circuit breaker can be difficult to assemble in an architecture or the assembly is done by stacking, particularly if a lock has two contacts. Because in this case there must be a trainer on either side of the lock (a trainer by thermal function), It would then be necessary to find a system to pre-mount the trainer in the envelope parts and hold it before assembling the lock on the envelope piece.
  • circuit breakers of the prior art are known for example documents FR 2,661,776 and EP 0 295 158 B1 .
  • the purpose of the request is therefore to overcome the difficulties of congestion related to the movements of the parts, the difficulties of guiding or assembly.
  • the purpose of the application is also to obtain a complete and compact subassembly that can be installed in an environment with a reduced space.
  • the application proposes a circuit breaker comprising a subassembly comprising an opening and closing mechanism having at least two stable states, a first state for which an upstream electrical line is not electrically connected to a downstream line (open contact ) and a second state for which the upstream power line is electrically connected to the downstream line (closed contact), said circuit breaker comprising a trigger able to switch the opening and closing mechanism of the second state to the first state when the trigger is moved, relative to the opening and closing mechanism, to return the opening and closing mechanism to the first state, said subassembly also comprising a driver and an actuator, preferably a thermal actuator, adapted to displace the trainer. to bring the opening and closing mechanism back to the first state when a product connected to the the electrical current downstream is traversed by a current greater than the rated current for which the product is expected (current overload).
  • the circuit breaker comprises at least one envelope piece forming a holding shell and comprising guide means of the coach, the trainer being maintained in the means of guiding by deformable clips of the envelope pieces or by an additional piece which is fixed on the envelope pieces or by at least one clipping pin.
  • the subassembly comprises means for guiding the driver.
  • the driver has a general shape of U, the first leg of the U being connected to the trigger and the second leg of the U being connected to the actuator, the middle part of the U connecting the two branches of the U.
  • circuit breaker can gain compactness (and therefore in margin of adjustment of the thermal protection).
  • the driver can be, on the one hand, connected to the actuator and, on the other hand, connected to the trigger.
  • the trainer is made of metal material, prevence from a wire.
  • the section of this wire may be round or square.
  • the wire has the advantage of being easily achievable and rigid by using a wire of small diameter (compared to a plastic part).
  • the coach is made of plastic.
  • the coach is guided on the envelopes.
  • the envelopes can hold the various parts of the lock (subassembly) (including thermal) in a guide rail.
  • the driver can be held in the guide rail by deformable clips of the subassembly holding envelope or by an additional piece that is fixed on the envelopes or by at least one clipping pin.
  • the subset is complete and autonomous.
  • the subassembly comprises at least one holding shell which may be formed by at least one envelope piece, preferably two envelope pieces.
  • the driver is guided in translation in the guide means in a translation direction.
  • the trainer has no rigid connection with the trigger, which reduces its bulk during operation.
  • the trainer operates in translation and has no rigid connection with the trigger part, which reduces its bulk during operation.
  • the trigger is provided with an orifice in which the driver is arranged.
  • the first branch of the U of the generally U-shaped driver is arranged in the orifice.
  • the actuator is able to return the opening and closing mechanism of the second state to the first state by bearing against the trainer when a product connected to the downstream electrical line is traversed by a current greater than the rated current. .
  • the actuator is able to return the opening and closing mechanism of the second state to the first state by bearing against the second leg of the U of the U-shaped driver when the product connected to the power line. downstream is traversed by a current higher than the rated current.
  • the driver can abut against a border of the orifice when the opening and closing mechanism is in its second state to switch the opening and closing mechanism of the second state to the first state.
  • the first U-shaped limb of the generally U-shaped driver may bear against the rim of the orifice when the opening and closing mechanism is in its second state to tilt the opening mechanism and closing the second state to the first state.
  • the orifice has a substantially oblong and curvilinear shape.
  • the orifice has essentially a form of beans and / or bananas and / or C.
  • the driver can assume a neutral position, in which the opening and closing mechanism can freely switch from the first state to the second state and vice versa.
  • the orifice is adapted to allow the opening and closing mechanism of the first state to switch to the second state and vice versa, when the driver takes the neutral position.
  • the driver may further take an actuating position which is offset from the neutral position in the translation direction.
  • a tilting of the opening and closing mechanism from the first state to the second state causes the actuator to move from the actuating position to the neutral position.
  • the trainer is free and has no relative movement with respect to the fixed parts of the product during the movement of the mechanism (opening or closing of the contacts)
  • the driver can be clipped into the envelope pieces, which eliminates the assembly difficulties for this type of subassembly (a mechanism with two contacts and a drive in translation with a stack assembly).
  • the trainer can also be maintained in the envelopes parts by an additional piece which would itself be fixed on the envelopes.
  • the trainer can be assembled by simple clipping after constitution of the complete subset, so the complete subset is functional and can be tested in a template before assembly of the complete product, so regardless of the complete product. This feature can not be achieved in the case where the coach is guided by the product envelope for example.
  • the deformable clips extend in a direction substantially perpendicular to the direction of translation.
  • the release is pivotally mounted relative to at least one envelope piece about a pivot axis.
  • the circuit breaker that is the object of the application has the advantage of saving space for future developments more and more compact, as well as to have a complete and independent mechanical subassembly with the trainer already assembled on it, or to assemble in the final environment without the constraint of a necessary maintenance in the envelopes (in the case of a stack assembly).
  • the Figures 12 and 12a disclose a subassembly 523 of a prior art circuit breaker having an opening and closing mechanism 560, which can be rotatably mounted relative to an axis of rotation R.
  • the subassembly 523 also includes a driver 520 which is rotatably mounted in the opening and closing mechanism 560 and is guided in translation in envelope parts 521.
  • Said circuit breaker further comprises a trigger 540 able to tilt the opening and closing mechanism 560.
  • the circuit breaker may further comprise an electrical contact comprising a movable contact element 561 and a fixed contact element.
  • the movable contact element 561 can be mechanically connected to the trigger 540.
  • the Figures 13 to 15 disclose a circuit breaker 100 according to the invention comprising a subassembly 123 comprising an opening and closing mechanism 160 having at least two stable states, a first state for which an upstream electrical line is not electrically connected to a downstream line (open contact) and a second state for which the upstream power line is electrically connected to the downstream line (closed contact).
  • Said subassembly 123 also comprises a driver 120 and an actuator 150, preferably a thermal actuator, adapted to return the opening and closing mechanism 160 to the first state when a product connected to the downstream electrical line is traversed by a higher current. the rated current for which the product is intended (current overload).
  • Said circuit breaker 100 may comprise a trigger 140 able to switch the opening and closing mechanism 160 from the second state to the first state when the trigger 140 is moved, relative to the opening and closing mechanism 160, to bring the mechanism opening and closing 160 to the first state.
  • subassembly 123 comprises guide means 124 of the trainer.
  • the driver 120 has a general U shape, the first leg 125 of the U being connected to the trigger 140 and the second leg 126 of the U being connected to the actuator 150, the middle portion 127 of the connecting U the two branches 125, 126 of the U.
  • circuit breaker 100 can gain in compactness (and therefore in margin of adjustment of the thermal protection).
  • the driver 120 can be, on the one hand, connected to the actuator 150 and, on the other hand, connected to the trigger 140.
  • the driver 120 is made of metallic material, preferably from a wire.
  • the section of this wire may be round or square.
  • the wire has the advantage of being easily achievable and rigid by using a wire of small diameter (compared to a plastic part).
  • the coach is made of plastic.
  • the driver 120 is guided on the envelopes 121, 122.
  • the envelopes 121, 122 can hold the various parts of the lock (subassembly 123) (including thermal) and in particular the driver 120 in the guide means 124.
  • the various parts of the lock can be held by deformable clips 128 or by an additional piece to be fixed on the envelopes 121, 122 or at least one clipping pin.
  • the subset 123 is complete and autonomous.
  • the driver 120 can be connected to the trigger by means of a mechanical link allowing a tilting of the trainer relative to the trigger.
  • the subassembly 123 comprises at least one holding shell which may be formed by at least one envelope piece 121, 122, preferably two envelope pieces 121, 122.
  • the driver 120 operates in translation and has no rigid connection with the trigger 140, which reduces its bulk during operation.
  • the driver 120 is free and has no relative movement relative to the fixed parts of the product during the movement of the mechanism (opening or closing contacts).
  • the driver 120 can be guided in translation in the guide means 124 in a translation direction T.
  • the trigger 140 may be provided with an orifice 141 in which the driver 120 is arranged.
  • the first leg 125 of the U of the generally U-shaped driver is arranged in the orifice 141.
  • the actuator 150 is capable of returning the opening and closing mechanism 160 from the second state to the first state by bearing against the driver 120 when a product connected to the downstream electrical line is traversed by a current greater than the current. nominal.
  • the actuator may be able to return the opening and closing mechanism 160 from the second state to the first state by bearing against the second leg 126 of the U of the U-shaped driver 120 when the product connected to the line downstream electrical current is traversed by a current greater than the rated current.
  • the driver may abut against a border 142 of the orifice 141 when the opening and closing mechanism 160 is in its second state to tilt the opening and closing mechanism 160 from the second state to the first state.
  • the first leg 125 of the U of the generally U-shaped driver 120 can bear against the edge 142 of the orifice 141 when the opening and closing mechanism 160 is in its second state to tilt the opening and closing mechanism 160 from the second state to the first state.
  • the orifice 141 may have a substantially oblong and curvilinear shape.
  • the orifice has essentially a form of beans and / or bananas and / or C.
  • the figures 14 and 15 show the coach 120 taking a position called neutral position.
  • the opening and closing mechanism 160 can be designed to be able to freely switch from the first state to the second state and vice versa.
  • the orifice 141 is designed to allow the opening and closing mechanism 160 to swing from the first state to the second state and vice versa, when the driver 120 assumes a neutral position.
  • the driver 120 may also take an actuating position (not disclosed in the figures) which is offset from the neutral position in the translation direction T.
  • a tilting of the opening and closing mechanism 160 from the first state to the second state causes a displacement of the driver 120 from the actuating position to the position neutral.
  • the driver 120 can be clipped into the envelope parts 121, 122, which eliminates the assembly difficulties for this type of subassembly 123 (a mechanism with two contacts and a translation drive with a stack assembly ).
  • the driver 120 may also be held in the envelope pieces 121, 122 by an additional piece which would itself be fixed on the envelopes 121, 122.
  • the driver 120 can be assembled by simple clipping after forming the complete subset 123, thus the complete subset 123 is functional and can be tested in a template before assembly of the complete product, therefore independently of the complete product. This feature can not be achieved in the case where the driver 120 is guided by the envelope parts 121, 122 of the product for example.
  • the deformable clips extend in a direction substantially perpendicular to the direction of translation.
  • the trigger 140 is pivotally mounted relative to at least one envelope piece 121, 122 around a pivot axis.
  • the circuit breaker that is the object of the application has the advantage of saving space for future developments more and more compact, as well as to have a complete and independent mechanical subassembly with the trainer already assembled on it, or to assemble in the final environment without the constraint of a necessary maintenance in the envelopes (in the case of a stack assembly).
  • the application also relates to a modular differential circuit breaker.
  • Circuit breakers of this type may comprise at least one cut-off compartment and a differential protection compartment, the cut-off compartment (s) having an opening mechanism and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • Differential circuit breakers may include test functions to test the proper functioning of the differential protection compartment.
  • the differential protection compartment then comprises in circuit test, the test circuit comprising a first switch that can be closed by pressing a test button
  • This test can be done by pressing the test button which has the effect of closing the test circuit which simulates a differential fault which causes the tripping of the differential module of the product, generally this differential fault is achieved by a leakage current between the neutral and at least one phase of the product, the current passing through a resistor having the effect of limiting the leakage current.
  • the circuit breaker comprises a connecting piece mounted inside the differential protection compartment and which makes it possible to mechanically connect the at least one compartment (s) between them by at least one lateral lug, preferably two lateral lugs.
  • the connecting piece can protrude from either side of the differential protection compartment and can penetrate the breaking compartments located, where appropriate, on either side of the differential protection compartment.
  • the connecting piece can actuate the opening of the contact of the compartments of cuts during a differential defect by means of its lateral pins.
  • circuit breakers known in the prior art have the disadvantage of leaving the test circuit active after a mechanical opening of the contacts of the breaking compartments and / or after a differential fault, and thus let the current flow unnecessarily into the test circuit when a long press on the test button, which could result in the destruction of the test function by damaging a resistance of the test function.
  • the application proposes a differential circuit breaker comprising a test circuit comprising a first switch that can be opened and / or closed by pressing a test button and a second switch that can be opened and / or closed by a connecting piece.
  • the connecting piece closes the second switch when the contact of the compartment (s) cutoff (s) is (are) closed (s).
  • the connecting piece opens the second switch when the contact of the compartment (s) cutoff (s) is (are) open (s) and / or when the differential protection compartment detects a fault.
  • the connecting piece can deactivate the test circuit during mechanical opening of the breaking compartments and / or by the differential protection compartment during a differential fault.
  • the connecting piece can be adapted to allow the establishment of good contact of the test circuit in the differential compartment, that is to say to close the test circuit (second closed switch, possibility of performing the test function).
  • the connecting piece physically opens the test circuit (second switch open and thus protects it from a short circuit in case of prolonged support and closure of the test button contact). Indeed when pressing the test button, the first switch test button is closed but as the second switch is open, the test function is disabled.
  • the connecting piece can deactivate the test circuit during mechanical opening of the breaking compartments and / or by the differential protection compartment during a differential fault.
  • the first switch and the second switch are connected in series.
  • the second switch comprises a first contact element and a second contact element, the connecting piece being able to move the first contact element away from the second contact element to open the second switch by bearing against the first element of contact.
  • the first contact element being rotatably mounted in a case of the differential circuit breaker.
  • the application relates to a circuit breaker 210 comprising a test circuit comprising a first switch 220 that can be opened and / or closed by pressing a test button 222 and a second switch 230 that can be opened and / or closed by a connecting piece 250.
  • the connecting piece 250 closes the second switch 230 when the contact of the compartment (s) cutoff (s) is (are) closed (s).
  • the connecting piece 250 opens the second switch 230 when the contact of the compartment (s) cutoff (s) is (are) open (s).
  • the first switch 220 and the second switch 230 are connected in series.
  • the connecting piece 250 can deactivate the test circuit during mechanical opening of the breaking compartments and / or by the differential protection compartment during a differential fault.
  • the connecting piece 250 may be mounted inside the differential protection compartment and may make it possible to mechanically connect the at least one compartment (s) between them by at least one lateral lug 251, 251 ', preferably two lateral lugs 251, 251 '.
  • the connecting piece 250 may protrude from either side of the differential protection compartment and may enter the breaking compartments located, where appropriate, on either side of the differential protection compartment.
  • the connecting piece 250 may be adapted to allow the establishment of good contact of the test circuit in the differential compartment, that is to say to close the test circuit (second switch 220 closed, possibility of achieving the test function).
  • the connecting piece 250 physically opens the test circuit (second open switch and thus protects it from a short circuit in case of prolonged support and closure of the test button 222 contact).
  • the test button 222 when pressing the test button 222, the first switch 220 of the test button 222 is closed but as the second switch 230 is open, the test function is disabled.
  • the second switch 230 may comprise a first contact element 231 and a second contact element 232.
  • the first contact element 231 can be moved away from the second contact element 232 to open the second switch 230.
  • the connection piece 250 can move aside the first contact element 231 of the second contact element 232 bearing against the first contact element 231.
  • the first contact element 231 can be rotatably mounted in a housing 211 of the differential circuit breaker 210.
  • the connecting piece can deactivate the test circuit during mechanical opening of the breaking compartments and / or by the differential protection compartment during a differential fault.
  • the subject of the application is also a method of manufacturing a modular electrical appliance providing at least two electrical functions, preferably a modular differential circuit breaker.
  • Modular electrical appliances as well as circuit breakers of this type may include at least one breaking compartment and a differential protection compartment, the at least one compartment (s) having an opening and closing mechanism of at least one electrical contact between an upstream power line and a downstream power line.
  • the differential protection compartment may comprise a differential fault detector comprising a toroid and a detection circuit.
  • the differential protection compartment may further comprise a test circuit comprising a test button.
  • the operating principle of a differential circuit breaker is to compare the intensities on different conductors that cross it. For the case of a single-phase differential circuit breaker, it compares the intensity of the current flowing in a conductor corresponding to the phase, and the intensity of the current flowing in a conductor corresponding to the neutral. In other words, the differential circuit breaker verifies that the sum of the intensities of the current flowing in the conductor corresponding to the phase and the conductor corresponding to the neutral are canceled. In the case of a multiphase differential circuit breaker, the differential circuit breaker verifies that the sum of the currents of current flowing in the conductors corresponding to the phases and to the neutral is canceled.
  • the differential device is thus based on the principle that, in a normal installation, the electric current that arrives from one conductor must come out through another. In a single-phase installation, if the current in the conductor corresponding to the phase at the start of an electrical circuit is different from that in the conductor corresponding to the neutral, it is that there is a leak.
  • each conductor passes into the torus, each of these conductors thus forming identical and opposing electromagnetic fields that cancel each other out.
  • the resulting electromagnetic field actuates a breaking compartment which rapidly cuts off the current by opening the electrical contact.
  • the object of the application is to propose a method of manufacturing an electrical appliance providing at least two electrical functions, preferably a modular differential circuit breaker, making it possible to reduce the number of products discarded.
  • the magnetic flux is induced in the core by creating a leakage current between the primary connection corresponding to the neutral and one of the primary connections corresponding to a phase.
  • the leakage current is limited by a resistor connected between the primary connection corresponding to the neutral and the primary connection corresponding to the phase.
  • step c) the proper functioning of the differential protection compartment is noted, if the induction of the magnetic flux in the toroid and / or the creation of the leakage current triggers the differential fault detector.
  • step d) is carried out after, in step c), the proper functioning of the differential protection compartment has been found.
  • the method comprises the following additional step: e) electrically welding at least a first external pole corresponding to one of the primary connections of the electrical apparatus
  • the method comprises the following additional step: f) insert the cutoff compartment (s) and / or the electrical apparatus, preferably in a housing.
  • the method comprises the following additional step: g) electrically welding at least one second external pole corresponding to one of the primary connections respectively to a conductor of the cutoff compartment or compartments, each conductor being preferably connected to a magnetic coil of the breaking compartment.
  • This step ensures that no mechanical differential defect will generate waste because the product is still repairable at this stage.
  • the method comprises, between step c) and step d), the following additional step: c1) insert the differential protection compartment into a housing.
  • the at least one second external pole is located outside the housing of the differential protection compartment, when the housing of the differential protection compartment is mounted on the differential protection compartment.
  • the at least one first external pole is located outside the case of the differential circuit breaker, when the case of the differential circuit breaker is mounted on the differential circuit breaker.
  • the application also relates to a modular electrical appliance providing at least two electrical functions manufactured using the manufacturing method according to demand.
  • the electrical apparatus is a modular differential circuit breaker.
  • the figure 19 is a schematic representation of a differential protection compartment 320 according to the object of the request made available in step a) of the method.
  • the differential protection compartment 320 comprises a differential fault detector and a test circuit, said test circuit comprising a test button, said differential fault detector comprising a torus 302 and a detection circuit.
  • the test button can be used to open and / or close a switch of the test circuit.
  • the switch can be plugged into the test circuit. Opening the switch can cause the test circuit to open. Closing the switch can cause the closing of the test circuit.
  • the figure 20 a schematic representation of the differential protection compartment 320 embedded in a housing 321 as it is after the execution of step c1).
  • the figure 21 is a schematic representation of a differential circuit breaker 330 that is the subject of the application.
  • the GFCI 330 includes the differential protection compartment 320 shown in FIGS. figures 19 and 20 .
  • the differential circuit breaker 330 may comprise four breaking compartments 340, two breaking compartments 340 being arranged respectively on either side of the differential protection compartment 320.
  • the primary connections 304 may each comprise two poles 307. These poles may either be external poles 308, namely first external poles 308 'which are outside the housing 321 of the differential protection compartment 320 or the second external poles 308. which are furthermore outside a housing 331 of the differential circuit breaker 330, or be internal poles 306 inside the housing 321.
  • the figure 22 is a schematic representation of the differential circuit breaker 330.
  • the figure shows in particular the first external poles 308 'to be soldered electrically in step e).
  • figures 4 and 5 flashes represent the soldering points of the components.
  • the figure 23 is a schematic representation of the differential circuit breaker 330.
  • the figure shows in particular the electrical welding of the second outer poles 308 "of the primary connections 304 respectively to a conductor 309, 310, 311, 312 of the breaking compartments 340, welded during the Step g)
  • each conductor 309, 310, 311, 312 is connected to a magnetic coil of the breaking compartment.
  • the application also relates to a cut-off device and a modular differential circuit breaker comprising at least one such cut-off device.
  • Such cut-off devices generally have a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises a cutting chamber comprising a yoke, an arc horn and a subset called a deion.
  • cut-off performance of such switching devices and modular differential circuit breakers comprising at least one such cut-off device are the result of a compromise between different components of the switchgear.
  • the cutoff is finalized in the deion, deion comprising platelets which split the arc.
  • the said pads are kept parallel and without contact with each other by a known non-conductive mechanical electricity device such as cardboard sheets or plastic plates.
  • the performance of such cut-off devices is dependent on the number of platelets of the deion.
  • the number of platelets is generally between 7 and 15 platelets, more particularly 7 or 11 or 12 or 13 platelets.
  • the electric arc is created at the moment of the opening of the contact under load and is guided towards the deion subset by two elements: The bow horn and a bow plate.
  • the current trend is to develop cutting devices ever more efficient volume equivalent or reduced. This trend involves increasing the performance of the cutoff device either at constant volume or by reducing the volume of the product or at least to keep acceptable performance while reducing the volume of the product.
  • Another important parameter in the cutoff performance of the cutoff device is whether or not there is an arc jump between the arc horn and the bolt.
  • the deion subassembly can extend to the breech which allows to increase the number of deion plates, on the other hand the fact that a "jump of arc" is present on the course of the arc, goes against the increase in performance generated by the fact that the number of deion wafers is increased.
  • the jump of the arc is in fact a discontinuity of the conductor which allows the arc to go to the subset deion.
  • the object of the application is to propose a cut-off device and a modular differential circuit breaker comprising at least one such cut-off device having a sufficiently high breaking performance while keeping a sufficiently compact breaking chamber.
  • the application proposes a cut-off device having a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises a cutting chamber comprising a yoke, an arc horn and a subset called a deion.
  • the bow horn is bent.
  • the breech has a longitudinal opening.
  • the arcuate horn terminates in a flat portion that is housed in the longitudinal opening so as to be parallel and aligned therewith.
  • the bow horn is housed in the same plane as that of the breech.
  • the longitudinal opening allows the bow horn to be housed in the same plane as that of the breech.
  • the arc horn is integrated directly into the cylinder head in one piece without arc jump.
  • the bow horn is arranged on the same plane as the breech.
  • the longitudinal opening in the cylinder head is open, which allows to house the arc horn integrally in its thickness in the opening of the cylinder head, because generally this type of component has a constant thickness.
  • the opening may also consist of a cavity housing the non-emergent arc horn made by stamping in the cylinder head for example.
  • the bow horn is partially integrated in the thickness of the breech.
  • the arc horn is fully integrated in the thickness of the yoke, an excrescence generated by the stamping in the cylinder head being spaced apart from each component of the magnetic subassembly.
  • the yoke and the bow horn are formed in one piece.
  • the yoke and the arc horn are formed by a piece of variable thickness.
  • the yoke and the arc horn are formed by a piece of constant thickness.
  • the yoke and the bow horn are formed by a bent piece.
  • the yoke and the arc horn are formed of an electrically conductive material.
  • the yoke and the arc horn are formed by a metal piece.
  • the yoke may comprise a flat portion, preferably extended at one of its ends by a first curved portion having a contact zone constituting a fixed contact of the cut-off device.
  • the first bent portion is itself extended by a second portion constituting an arc horn.
  • the arc horn may consist of two portions, a prolonged curved portion of a terminal planar portion.
  • the breech may have an opening.
  • the arcuate horn terminates in a flat portion and is preferably bent so that the planar portion is housed in the opening of the yoke so as to be parallel and aligned therewith.
  • FIGS. 24 to 26 are schematic representations of a breaking device 450 known from the prior art with arc-jump comprising a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises a breaking chamber 470 having a yoke 462, an arc horn 461 and a subassembly called deion 490.
  • the arc horn 461 is a component welded to the cylinder head 462.
  • the sub deion assembly 490 extends to the cylinder head 462 which allows to increase the number of plates deion 491.
  • the jump of arc is further schematized in the figures 24 and 26 .
  • the jump of arc is made from a first position 451 of the arc to a second position 452 of the arc above a discontinuity 463 of the driver which allows the arc to go to the subassembly 490.
  • the figures 27 and 28 are schematic representations of a cut-off device 450 'known from the prior art without arcing, comprising a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises a breaking chamber 470 'comprising a yoke 462', an arc horn 461 'and a subset called a deion 490'.
  • the figure 29 is a schematic representation of a cylinder head 410 of a cutoff device 400 proposed by the application.
  • the figure 30 is a schematic representation of the cut-off device 400 comprising the cylinder head 402.
  • the cut-off device 400 has a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises a breaking chamber 420 comprising a yoke 402, an arc horn 401 and a subset called the deion 440.
  • the yoke 402 has a longitudinal opening 411.
  • the arc horn 401 is housed in the same plane as that of the cylinder head 402.
  • the longitudinal opening 411 allows the arc horn 401 to be housed in the same plane as that of the 402 cylinder head.
  • the arc horn 401 is integrated directly into the cylinder head 402 in one piece without arc jump.
  • the arc horn 401 is arranged on the same plane as the cylinder head 402.
  • the yoke 402 may comprise a flat portion 404, preferably extended at one of its ends by a first curved portion 405 having a contact zone 406 constituting a fixed contact of the cut-off device.
  • the first curved portion 405 and the contact zone 406 are themselves extended by a second curved portion 407 constituting the arc horn 401.
  • the arcuate horn 401 may consist of two portions, that is to say the second curved portion 407 and a terminal planar portion 408.
  • the second curved portion 407 is extended by the terminal flat portion.
  • the end planar portion 408 is housed in the longitudinal opening 401.
  • the arc horn 401 terminates in a planar portion and is preferably bent so that the planar portion is housed in the opening 411 of the cylinder head 402 so as to be parallel and aligned with it.
  • the opening 401 is open.
  • the opening 401 can be made by stamping, in this case it is non-emergent and the portion covering the opening 401 extends beyond the thickness of the cylinder head 402 in the direction opposite to that of the chamber cutting distance d.
  • this distance is equal to the thickness of the cylinder head 402.
  • this distance is less than the thickness of the cylinder head 402.
  • the figures 24 and 26 each discloses a cutoff device 400 with arc jump.
  • the cutoff device 400 comprises a first position 451 where the arc is located before the jump of arc and a second position 452 where the arc is located after the jump of arc.
  • the last object of the application is a differential circuit breaker which combines at least two of the various objects mentioned above.

Landscapes

  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (14)

  1. Differentialschutzvorrichtung, umfassend einen Differentialfehlerdetektor (22) mit einer ersten elektrischen Schaltung (24) und einer zweiten elektrischen Schaltung (26), wobei die erste elektrische Schaltung (24) eine Spule (4) umfasst, wobei der Differentialfehlerdetektor (22) ferner einen Torus (1) umfasst, durch den mindestens ein Leiter (3) mindestens einmal hindurchgehen kann, wobei die Spule (4) um den Torus (1) gewickelt und mit der ersten elektrischen Schaltung (24) verbunden ist, um eine erste Spannung (U2) an die erste elektrische Schaltung (24) anzulegen, wenn ein Magnetfluss in dem Torus (1) induziert wird,
    dadurch gekennzeichnet, dass
    der Differentialfehlerdetektor (22) mindestens eine Spannungsvervielfachungsvorrichtung (6) umfasst, die mit der zweiten elektrischen Schaltung (26) verbunden ist und eine zweite Spannung (V2) an die zweite elektrische Schaltung (26) in Abhängigkeit von der ersten Spannung (U2) anlegen kann, und dass die Multiplikationsvorrichtung (6) mindestens eine elektrische Energiespeichervorrichtung (7) umfasst, wobei die Multiplikationsvorrichtung (6) in der Lage ist, die zweite Spannung (V2) an die zweite Schaltung (24) so anzulegen, dass die zweite Spannung (V2) um einen Multiplikationsfaktor größer als 2 höher als die erste Spannung (U2) ist.
  2. Differentialschutzvorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, dass
    sie eine erste Breite (L1) aufweist, die im Wesentlichen gleich der Breite eines Basismoduls ist.
  3. Differentialschutzvorrichtung nach einem der Ansprüche 1 bis 2,
    dadurch gekennzeichnet, dass
    der Differentialfehlerdetektor (22) eine elektrische Zwischenschaltung (25) umfasst, die mit der ersten elektrischen Schaltung (24) über ein Konditionierungsmodul (5) verbunden ist, das in der Lage ist, der Zwischenschaltung (25) in Abhängigkeit von der ersten Spannung (U2) eine Konditionierungsspannung (V1) bereitzustellen, wobei die elektrische Zwischenschaltung (25) vorzugsweise mit der zweiten elektrischen Schaltung (26) über die Spannungsvervielfachungsvorrichtung (6) verbunden ist.
  4. Differentialschutzvorrichtung nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, dass
    die elektrische Energiespeichervorrichtung (7) ein elektrischer Kondensator mit einer Kapazität vorzugsweise zwischen 470 nF und 2200 nF ist.
  5. Differentialschutzvorrichtung nach einem der Ansprüche 1 bis 4,
    dadurch gekennzeichnet, dass
    die Spule (4) eine Anzahl von Windungen zwischen 800 und 1100 Windungen umfasst.
  6. Differentialschutzvorrichtung nach einem der Ansprüche 1 bis 5,
    dadurch gekennzeichnet, dass
    die Spannungsvervielfachungsvorrichtung (6) einen AC/DC-Wandler umfasst, der in der Lage ist, eine an die erste elektrische Schaltung (24) und/oder gegebenenfalls an die Zwischenschaltung (25) angelegte Wechselspannung in eine an die zweite elektrische Schaltung (26) angelegte Gleich- oder Quasi-Gleichspannung umzuwandeln.
  7. Differentialschutzvorrichtung nach einem der Ansprüche 1 bis 6,
    dadurch gekennzeichnet, dass
    die zweite Spannung (V2) um einen Multiplikationsfaktor kleiner oder gleich 8 höher ist als die erste Spannung (U2).
  8. Differentialschutzschalter mit mindestens zwei Schaltvorrichtungen (60),
    dadurch gekennzeichnet, dass
    er auch eine Differentialschutzvorrichtung (20) nach einem der Ansprüche 1 bis 7 umfasst, wobei die Schaltvorrichtungen (60) jeweils mindestens einen Leiter (3) umfassen, der mindestens einmal durch den Torus (1) der Differentialschutzvorrichtung (20) verläuft.
  9. Differentialschutzschalter nach Anspruch 8,
    dadurch gekennzeichnet, dass
    er vier Schaltvorrichtungen (60) umfasst, die jeweils einen Leiter (3) umfassen, der jeweils mindestens einmal durch den Torus (1) der Differentialschutzvorrichtung (20) verläuft, wobei die Differentialschutzvorrichtung (20) und die Schaltvorrichtungen (60) vorzugsweise so angeordnet sind, dass jeweils zwei Schaltvorrichtungen (60) auf beiden Seiten der Differentialschutzvorrichtung (20) angeordnet sind.
  10. Differentialschutzschalter nach einem der Ansprüche 8 oder 9,
    dadurch gekennzeichnet, dass
    die Schaltvorrichtung(en) (60) eine zweite Breite (L2) aufweist/aufweisen, die im Wesentlichen dem 0,75-fachen der Breite eines Basismoduls entspricht.
  11. Verfahren zum Steuern mindestens eines elektrischen Gerätes, vorzugsweise mindestens einer Schaltvorrichtung (60), mittels einer Differentialschutzvorrichtung (20) nach einem der Ansprüche 1 bis 7,
    dadurch gekennzeichnet, dass
    es die folgenden aufeinanderfolgenden Schritte umfasst:
    - Anlegen einer ersten Spannung (U2) in einer ersten elektrischen Schaltung (24) aus einem Magnetfeld unter Verwendung eines Torus (1) und einer Spule (4);
    - Anlegen einer zweiten Spannung (V2) in einer zweiten elektrischen Schaltung (26) in Abhängigkeit von der ersten Spannung (U2) mittels einer Spannungsvervielfachungsvorrichtung (6), wobei die zweite Spannung (V2) um einen Faktor größer als 2 größer als die erste Spannung (U2) ist und
    - Energiespeicherung unter Verwendung einer Energiespeichervorrichtung (7), die mit der zweiten elektrischen Schaltung (26) verbunden ist.
  12. Verfahren zum Steuern nach Anspruch 11, dadurch gekennzeichnet,
    dass es ferner den folgenden Schritt umfasst:
    - Entladen der in der Energiespeichervorrichtung (7) angesammelten elektrischen Energie in eine dritte elektrische Schaltung (28), wenn eine in der Energiespeichervorrichtung (7) erfasste dritte Spannung (V3) eine vorbestimmte Schwellenspannung überschreitet.
  13. Verfahren zum Steuern nach Anspruch 12,
    dadurch gekennzeichnet, dass
    es ferner den folgenden Schritt umfasst:
    - Senden eines Befehls an das elektrische Gerät durch Entladen der in der Energiespeichervorrichtung (7) gespeicherten elektrischen Energie in die dritte elektrische Schaltung (28).
  14. Verfahren zum Steuern nach Anspruch 13,
    dadurch gekennzeichnet, dass
    das Senden des Befehls an das elektrische Gerät darin besteht, eine Kraft auf ein Steuerelement der Schaltvorrichtung mittels eines Stellglieds auszuüben.
EP15820215.0A 2014-12-01 2015-12-01 Differenzialschutzvorrichtung Active EP3227901B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1461738A FR3029350B1 (fr) 2014-12-01 2014-12-01 Dispositif de protection differentielle
PCT/FR2015/053280 WO2016087768A1 (fr) 2014-12-01 2015-12-01 Dispositif de protection différentielle

Publications (2)

Publication Number Publication Date
EP3227901A1 EP3227901A1 (de) 2017-10-11
EP3227901B1 true EP3227901B1 (de) 2019-07-10

Family

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Application Number Title Priority Date Filing Date
EP15820215.0A Active EP3227901B1 (de) 2014-12-01 2015-12-01 Differenzialschutzvorrichtung
EP15306904.2A Active EP3029705B1 (de) 2014-12-01 2015-12-01 Herstellungsverfahren eines elektrischen geräts, das mindestens zwei elektrische funktionen sicherstellt
EP15306902.6A Active EP3029703B1 (de) 2014-12-01 2015-12-01 Schutzschalter, bevorzugt fehlerstromschutzschalter
EP15306903.4A Active EP3029704B1 (de) 2014-12-01 2015-12-01 Fehlerstromschutzschalter
EP15306905.9A Active EP3029706B1 (de) 2014-12-01 2015-12-01 Unterbrechungsvorrichtung und modularer fehlerstromschutzschalter, der mindestens eine solche unterbrechungsvorrichtung umfasst

Family Applications After (4)

Application Number Title Priority Date Filing Date
EP15306904.2A Active EP3029705B1 (de) 2014-12-01 2015-12-01 Herstellungsverfahren eines elektrischen geräts, das mindestens zwei elektrische funktionen sicherstellt
EP15306902.6A Active EP3029703B1 (de) 2014-12-01 2015-12-01 Schutzschalter, bevorzugt fehlerstromschutzschalter
EP15306903.4A Active EP3029704B1 (de) 2014-12-01 2015-12-01 Fehlerstromschutzschalter
EP15306905.9A Active EP3029706B1 (de) 2014-12-01 2015-12-01 Unterbrechungsvorrichtung und modularer fehlerstromschutzschalter, der mindestens eine solche unterbrechungsvorrichtung umfasst

Country Status (4)

Country Link
EP (5) EP3227901B1 (de)
AU (1) AU2015356923B2 (de)
FR (1) FR3029350B1 (de)
WO (1) WO2016087768A1 (de)

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CH604363A5 (en) * 1976-09-10 1978-09-15 Landis & Gyr Ag Electrical cut=out relay
FR2378344A1 (fr) * 1977-01-25 1978-08-18 Telemecanique Electrique Piece de soufflage
AT384906B (de) * 1985-12-02 1988-01-25 Felten & Guilleaume Ag Oester Fehlerstrom- und leitungsschutzschalter
FR2616583B1 (fr) 1987-06-09 1995-01-06 Merlin Gerin Mecanisme de commande d'un disjoncteur electrique miniature
EP0338930A1 (de) * 1988-04-22 1989-10-25 Hager Electro S.A. Lastschalter oder Differential-Lastschalter
FR2661776B1 (fr) 1990-05-04 1996-05-10 Merlin Gerin Declencheur instantane d'un disjoncteur.
FR2663153B1 (fr) * 1990-06-07 1992-09-11 Legrand Sa Dispositif de declenchement differentiel.
FR2686453B1 (fr) * 1992-01-17 1994-04-08 Legrand Interrupteur differentiel.
FR2701335B1 (fr) * 1993-02-09 1995-04-14 Merlin Gerin Bloc de protection différentielle avec sous ensemble fonctionnel testable.
US5920451A (en) * 1997-09-05 1999-07-06 Carlingswitch, Inc. Earth leakage circuit breaker assembly
FR2777110B1 (fr) * 1998-04-03 2000-06-23 Legrand Sa Disjoncteur differentiel multipolaire
FR2811805B1 (fr) * 2000-07-13 2002-08-30 Schneider Electric Ind Sa Appareil de protection electrique differentiel
FR2828329B1 (fr) * 2001-07-31 2003-12-12 Legrand Sa Dispositif pour l'extinction d'un arc electrique
DE10230094B4 (de) * 2002-07-04 2004-06-24 Siemens Ag Lichtbogen-Löschvorrichtung
FR2865582B1 (fr) * 2004-01-22 2006-03-10 Schneider Electric Ind Sas Dispositif de protection differentielle avec moyens de reglage simplifies des parametres de protection
AT509838A2 (de) * 2010-03-19 2011-11-15 Moeller Gebaeudeautomation Gmbh Fehlerstromschutzschalter
US9153952B2 (en) * 2011-02-16 2015-10-06 Eaton Industries (Austria) Gmbh Residual-current circuit breaker
DE102012111615A1 (de) * 2012-11-29 2014-06-05 Eaton Industries (Austria) Gmbh Fehlerstromschutzschalter

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Also Published As

Publication number Publication date
EP3029705A1 (de) 2016-06-08
EP3029704B1 (de) 2021-03-31
EP3029703A1 (de) 2016-06-08
EP3029704A1 (de) 2016-06-08
FR3029350B1 (fr) 2016-12-23
EP3029706B1 (de) 2020-11-04
EP3029703B1 (de) 2018-01-31
EP3029705B1 (de) 2020-11-04
EP3227901A1 (de) 2017-10-11
FR3029350A1 (fr) 2016-06-03
AU2015356923A1 (en) 2017-07-20
AU2015356923B2 (en) 2020-03-12
EP3029706A1 (de) 2016-06-08
WO2016087768A1 (fr) 2016-06-09

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