EP3718126A1 - Appareil électrique de coupure modulaire - Google Patents
Appareil électrique de coupure modulaireInfo
- Publication number
- EP3718126A1 EP3718126A1 EP17816969.4A EP17816969A EP3718126A1 EP 3718126 A1 EP3718126 A1 EP 3718126A1 EP 17816969 A EP17816969 A EP 17816969A EP 3718126 A1 EP3718126 A1 EP 3718126A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- line
- electrical
- electronic circuit
- intended
- phase
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
- H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
- H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/167—Circuits for remote indication
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/168—Indicators for switching condition, e.g. "on" or "off" making use of an electromagnetic wave communication
Definitions
- the present invention relates to the field of modular electrical switchgear, preferably of the modular differential circuit breaker type.
- a modular electric circuit breaker-type circuit breaker also known by the name RCBO (Residual-current Circuit Breaker with Overcurrent Protection), has a width of one module, that is to say that the distance between the two faces side of the housing of the electrical cutoff device corresponds to a normalized value, called module.
- This type of electrical apparatus also comprises, in a known manner, a thermal tripping member, preferably a bimetallic strip, ensuring the protection of the electrical installation protected against overcurrent faults, an electronic card for differential measurement coupled to an electromagnetic actuator, providing protection for the protected electrical installation in the event of a differential fault, as well as a magnetic tripping device ensuring the protection of the protected electrical installation in the event of a short-circuit-type fault.
- auxiliary devices which are not part of the electrical cut-off apparatus, because of the bulk of the electrical components that provide said functions.
- these auxiliary devices may be in the form of additional modules, fixed, in the same way as the electrical switchgear, on a modular row of the electrical panel or be in the form of a separate element of the electrical appliance, attached thereto, for example at the label holder.
- the additional auxiliary modules have the disadvantage of occupying an undesirable additional space on the modular row of the electrical panel in which they are housed and also involve a complex and laborious installation requiring the intervention of a specialized installer to carry out the wiring.
- the present invention aims to overcome these disadvantages by proposing a solution for implementing functions complementary, without impact G congestion, neither in the electrical device cutoff nor in the electrical panel.
- the invention relates to a modular electrical switchgear device comprising at least one housing in which is housed:
- a first phase line between at least a first connection terminal adapted and intended to be connected to an electrical distribution source and a second connection terminal intended to be connected to a load comprising a pair of contacts respectively fixed and mobile
- a second neutral line between at least one first connection terminal adapted and intended to be connected to an electrical distribution source and a second connection terminal intended to be connected to a load
- a trigger lock comprising an operating member projecting from a face of the casing for manually actuating the release lock, and comprising a movable contact holder on which the movable contact is mounted, and being configured to adopt a first position, in which the fixed contact and the movable contact are in contact, and secondly, a second position, in which the fixed contact and the movable contact are at a distance from one another,
- the first phase line comprising at least one magnetic triggering device adapted and intended to actuate the trigger lock to switch the release lock from the first position to the second position in the event of a short-circuit-type fault
- a measuring device housed in said housing, comprising a measuring sensor, adapted and intended to measure at least the value of the intensity of the current passing through only the first phase line and a second electronic circuit, electrically connected to said sensor of measuring, adapted and intended to be powered between the first phase line and the second neutral line, and being configured to determine a trigger threshold, by comparing the value of the intensity of the measured current with a value of intensity of the predetermined threshold current, for which the control member is adapted and intended to control the electromagnetic actuator which is adapted and intended to actuate the trigger lock to switch the release lock from the first position to the second position in case of defect prolonged overcurrent type.
- FIG. 1 schematically illustrates the electric circuit of the electric breaking device of the invention according to an alternative embodiment
- FIG. 2 diagrammatically illustrates the electric circuit of the electric breaking device of the invention according to another preferred variant embodiment
- FIG. 3 is a perspective view of the modular electrical breaking device according to the invention.
- FIG. 4 is a side view of the modular electrical breaking device of the invention according to a preferred embodiment of which the lateral face has been partially removed to show the second electronic card,
- FIG. 5 is a side view of the modular electrical breaking device of the invention according to the embodiment variant of FIG. 4, the lateral face and the second electronic card of which have been partially removed to show the thermal tripping member. bimetallic type.
- the modular electrical switching device comprises at least one housing B in which is housed:
- a first line L of phase between at least a first connection terminal 1 adapted and to be connected to an electrical distribution source and a second connection terminal 2 intended to be connected to a load comprising a pair of respectively fixed contacts 3 and mobile 4 (FIGS. 1 and 2), a second neutral line N between at least one first connection terminal adapted and to be connected to an electrical distribution source and a second connection terminal intended to be connected to a load (FIGS. 1 and 2),
- a trigger lock 7 comprising an operating member 8 projecting from a front face F1 of the housing B to manually actuate the release lock 7, and comprising a movable contact holder 9 on which the movable contact 4 is mounted, and being configured to adopt a first position Pl, in which the fixed contact 3 and the movable contact 4 are in contact, and secondly, a second position P2, in which the fixed contact 3 and the movable contact 4 are at a distance from each other. on the other ( Figures 1, 2, 4 and 5),
- the first line L of phase comprising at least one magnetic triggering member 10 adapted and intended to actuate the trigger lock 7 to switch the release lock 7 from the first position P1 to the second position P2 in the event of a short-term fault.
- circuit (FIGS. 1 and 2),
- the electrical apparatus is characterized in that it comprises:
- a measuring device 14 housed in said housing B, comprising a measurement sensor 15, 15 ', adapted and intended to measure at least the value of the intensity of the current passing through only the first line L of phase and a second electronic circuit 16, electrically connected to said measuring sensor 15, 15 'adapted and intended to be fed between the first line L of phase and the second line N of neutral, and being configured to determine a triggering threshold, by comparison of the value of the intensity of the current measured at an intensity value of the predetermined threshold current, for which the control 13 is adapted and intended to control the electromagnetic actuator 10 ', which is adapted and intended to actuate the release lock 7 to switch the release lock 7 from the first position P1 to the second position P2 in the event of a defect of the type prolonged overcurrent ( Figures 1, 2, 4 and 5).
- the fact of providing a measuring device 14 housed in said box B makes it possible to propose a modular electrical cut-off device equipped with a complementary electronic measuring function without impacting the modular format of the electrical apparatus and without resorting to a module. additional auxiliary.
- This avoids the use of the modular space or the undesirable wiring zone within the electrical panel, in which the electrical breaking device according to the invention is intended to be installed.
- the overall installation time is also limited since no additional wiring operation is required. This results in a great simplicity of installation and implementation, incommensurate compared to known products of the prior art.
- the installation of the electrical apparatus according to the invention is possible without tools and in a few minutes.
- the measuring device 14 makes it possible, by means of the measurement sensor 15, 15 ', to measure the value of the intensity of the current flowing through the first line L of phase.
- This measurement sensor 15, 15 ' is also electrically connected to a second electronic circuit 16 which makes it possible to process the data relating to the value of the intensity of the measured current, and in particular to compare these data with a value of the intensity predetermined threshold current, to determine a trigger threshold. More particularly, as long as the value of the intensity of the measured current is lower than the value of the intensity of the predetermined threshold current, the triggering threshold is not reached, and in this case, the control member 13 does not control the electromagnetic actuator 10 'and the trigger lock 7 remains in the first position P1.
- the control member 13 controls the electromagnetic actuator 10 ', which itself actuates the trigger lock 7, and thus switch the release lock 7 from the first position Pl to the second position P2.
- This measuring device 14 is preferably configured to comply with IEC 61009-1.
- the value of the intensity of the predetermined threshold current may be between 1.13 times the nominal current intensity at 9 times the nominal current intensity.
- the measuring device 14 provides an electronic function for prolonged overcurrent detection.
- the present invention therefore advantageously extends to an electrical switching device, as defined above, comprising only the measuring device 14, within the meaning of the present invention, to perform the extended overcurrent detection function. In this case, no thermal tripping member is provided.
- the electric switching device of the present invention is a differential circuit breaker of which only the first phase line L is protected against defects.
- the second neutral line N may comprise a pair of contacts respectively fixed 3 'and mobile 4' between the first connection terminal 5 and the second connection terminal 6 (FIGS. 1 and 2).
- the contacts, respectively fixed 3 'and mobile 4' are also mounted on the movable contact carrier 9.
- the contacts respectively fixed 3 'and mobile 4' are actuated simultaneously with the contacts, respectively fixed 3 and mobile 4 between the first position P1 and the second position P2.
- the electrical breaking device according to the invention is modular as illustrated in FIG. 3, and thus has a width of a module, that is to say that the distance between the two lateral faces L2 of the housing B of the electrical cutoff device corresponds to a standardized value, called module.
- the measurement sensor is a Joule effect measuring sensor 15 '.
- the Joule effect measuring sensor 15 ' may be a shunt.
- the first phase line L comprises in series the Joule effect measuring sensor 15 '.
- the measurement sensor is an electrical transformer 15.
- the electrical transformer 15 may comprise a torus or a Rogowski winding crossed only by the first line L.
- a shunt-type Joule effect sensor 15 has the advantage of being compact in particular, more compact and in particular thinner than a torus or a Rogowski winding.
- a shunt may have dimensions of 15 millimeters ⁇ 5 millimeters ⁇ 1 millimeters, while a torus generally has a diameter of the order of 1.5 centimeters and a thickness of 5 millimeters.
- the present invention also extends to a measuring device 14 according to the invention for which the measuring sensor is a measuring sensor excluding an electrical transformer.
- the measuring device 14 further comprises a voltage measurement sensor (not shown) suitable for measuring the value of the electrical voltage of the current between the first line L phase and the second line N of neutral, and being electrically connected to the second electronic circuit 16.
- a voltage measurement sensor (not shown) suitable for measuring the value of the electrical voltage of the current between the first line L phase and the second line N of neutral, and being electrically connected to the second electronic circuit 16.
- the measuring device 14 furthermore makes it possible to measure, using the voltage measurement sensor, the electrical voltage between the first phase line L and the second line N of neutral. As a result, it is possible thanks to the measuring device 14 to make consumption measurements.
- the second electronic circuit 16 of the measuring device 14 may be configured to provide an overvoltage detection function and / or an undervoltage detection function.
- the second electronic circuit 16 is then configured to determine at least one triggering threshold, by comparing the value of the measured voltage with at least one value of the predetermined threshold voltage, for which the control member 13 is suitable and intended for control the electromagnetic actuator 10 ', which is adapted and intended to actuate the trigger lock 7 to switch the release lock 7 from the first position Pl to the second position P2, in case of overvoltage or undervoltage type fault.
- a first value of the predetermined threshold voltage can determine a tripping threshold in case of undervoltage.
- the first value of the predetermined threshold voltage may, for example, be equal to 80 volts.
- a second value of the predetermined threshold voltage can determine a trip threshold in case of overvoltage. In this case, if the value of the measured voltage is greater than the first value of the predetermined threshold voltage, an overvoltage threshold is crossed.
- the second value of the predetermined threshold voltage may for example be equal to 285 Volts.
- the voltage measurement sensor may consist of a voltage divider bridge.
- the first line L of phase comprises in series at least one thermal triggering member 17 adapted and intended to actuate the trigger lock 7 to switch the lock of tripping 7 from the first position P1 to the second position P2 in the event of a prolonged overcurrent fault.
- the thermal tripping member 17 provides security in the event of absence of voltage to supply the second electronic circuit 16 of the measuring device 14 or of the second electronic circuit 16 to malfunction.
- the opening of the first protected phase line L is guaranteed at all times in case of prolonged overcurrent.
- the security is enhanced by double monitoring the overcurrent due to the combination of the thermal trip member 17 and the measuring device 14 performing an electronic measurement.
- the thermal tripping member 17 may consist of a bimetallic strip connected or not to the moving contact 4 by a flexible conductor 17 'and adapted and intended to actuate the trigger lock 7 under the effect of a bimetal deformation.
- the bimetal is deformed by direct or indirect heating of the flexible conductor 17 '.
- the flexible conductor 17 ' is a conductive braid.
- the bimetallic strip may have more compact dimensions than the bimetallic strips normally used in modular electrical cut-off apparatuses of the prior art, since lesser sensitivity is required.
- the bimetallic strip only reinforces the measuring device 14 in the absence of voltage in order to supply the second electronic circuit 16 of the measuring device 14 or the second electronic circuit 16 to malfunction.
- the second electronic circuit 16 of the measuring device 14 further comprises a communication module 18 for transmitting data relating to the values measured by the measurement sensor 15, 15 ', and / or receive data relating to the parameterization of the second electronic circuit 16 and preferentially relating to at least the intensity value of the predetermined threshold current.
- a communication module 18 allows the configuration or reconfiguration of the second electronic circuit 16 remotely. For example, it is possible to parameterize remotely via the communication module 18, the value of the intensity of the predetermined threshold current or other parameters coming from the second electronic circuit 16. As a result, the communication module 18 allows the remote parameterisation of the measuring device 14. In addition, this communication module 18 makes it possible to obtain the data relating to the value of the intensity of the current measured by the measurement sensor 15, 15 'and, if appropriate, the data relating to the value of the electrical voltage measured by the voltage measuring sensor, as well as any other data processed by the second electronic circuit 16.
- This communication module 18, preferably radiofrequency, can thus include an antenna.
- the second electronic circuit 16 of the measuring device 14 is configured to perform an electric arc detection function by means of the electrical transformer 11 and the measurement sensor 15, 15 'associated with the second electronic circuit 16.
- the measuring device 14 makes it possible to ensure a specific protection function against the arc type defects by means of the electrical transformer 11 associated with the first electronic circuit 12 and the measuring sensor 15, 15 'associated with the second electronic circuit 16.
- the measuring device 14 can actuate the trigger lock 7 to make it switching from the first position P1 to the second position P2, when a dangerous electric arc is detected.
- the second electronic circuit 16 is configured to distinguish electrical arcs considered dangerous, other electric arcs, to avoid inadvertent tripping of the electrical switchgear. More particularly, the second electronic circuit 16 is configured to monitor and analyze the signal form of the measured electric current by means of the electrical transformer 11 and the measurement sensor 15, 15 'to detect abnormal forms of the electric current signal representative of a dangerous electric arc.
- this additional electric arc detection function makes it possible to improve the safety of the protected electrical installation by means of the electrical switching device according to the invention, in particular against fires.
- the measuring device 14 is disposed in a housing 19 of the housing B located between the second connection terminal 2 of the first phase line L and the moving contact 4.
- the measuring device 14 is disposed in the housing B of the electrical apparatus according to the invention at the place initially intended to receive a thermal tripping member.
- the housing 19 and devoid of thermal tripping members advantageously allows an optimization of the space within the housing B of the electrical apparatus according to the invention and to maintain maximum compactness.
- the measuring device 14 is disposed in a housing 19 of the housing B situated between the second connection terminal 2 of the first line L and the moving contact 4, which housing 19 comprises in addition to the thermal tripping member 17.
- the measuring device 14 is disposed in the housing B of the apparatus at the same place provided for the thermal tripping member 17.
- the electrical apparatus according to the invention may comprise a first electronic card 20 comprising a supply circuit, for supplying the first electronic circuit 12 and the second electronic circuit 16 between the first line L of phase and the second line N of neutral and a second electronic card 21 comprising the first electronic circuit 12 and the second electronic circuit 16.
- the second electronic card 21 includes, on the one hand, the differential function and, on the other hand, the electronic function of prolonged overcurrent detection, and if necessary, other additional functions described above.
- the second electronic card 21 may comprise at least one microcontroller 22, an electronic measurement component 23, and an antenna forming the communication module 18.
- the electronic measurement component 23 is electrically connected to the measurement sensor 15, 15 ' and if necessary, to the voltage measuring sensor. This electronic measurement component 23 makes it possible to convert the analog data coming from the measurement sensor 15, 15 'and, if appropriate, from the voltage measurement sensor into digital data that can be processed by the microcontroller 22.
- the microcontroller 22 is electrically connected to the electronic measurement component 23 to collect and process the data relating to the intensity value of the current measured by the measurement sensor 15, 15 'and, if appropriate, to the measured voltage value. by the voltage measuring sensor.
- the microcontroller 22 is furthermore electrically connected to said antenna to allow bidirectional communication, that is to say on the one hand to communicate the data collected by the measurement sensor 15, 15 'and / or the measurement sensor voltage to a remote communication unit (not shown) and, on the other hand, to receive data relating to a configuration of the microcontroller 22 from a remote communication unit.
- the remote communication unit may consist of a computer equipped with dedicated software, a smartphone equipped with a dedicated application or the like.
- the second electronic card 21 is preferably housed in the housing 19, described above.
- the control member 13 may consist of an electronic control element, thyristor type or alternatively a trip relay.
- the electromagnetic actuator 10 ' is actuated and can act on the trigger lock 7 to trigger the passage from the first position P1 to the second position P2.
- This control member 13 is electrically connected to both the first electronic circuit 12 and the second electronic circuit 16.
- the control member 13 is electrically connected to the second electronic card 21.
- the magnetic tripping member 10 comprises a coil surrounding a movable core that can actuate the trigger lock 7.
- the electrical transformer 11 comprises a primary winding crossed by the first phase line L and the second neutral line N and a secondary winding electrically connected to the first electronic circuit 12.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Breakers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/FR2017/053358 WO2019106241A1 (fr) | 2017-12-01 | 2017-12-01 | Appareil électrique de coupure modulaire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3718126A1 true EP3718126A1 (fr) | 2020-10-07 |
Family
ID=60702819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17816969.4A Pending EP3718126A1 (fr) | 2017-12-01 | 2017-12-01 | Appareil électrique de coupure modulaire |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3718126A1 (fr) |
| CN (1) | CN111542905B (fr) |
| AU (1) | AU2017441384B2 (fr) |
| WO (1) | WO2019106241A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3116392B1 (fr) * | 2020-11-18 | 2022-11-11 | Hager Electro Sas | Appareillage de protection à coupure électronique |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0325071B1 (fr) * | 1988-01-20 | 1993-04-28 | Hager Electro S.A. | Appareil de protection d'installations électriques |
| US20130329331A1 (en) * | 2012-06-11 | 2013-12-12 | Schneider Electric USA, Inc. | Wireless Branch Circuit Energy Monitoring System |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7440250B2 (en) * | 2005-11-30 | 2008-10-21 | Eaton Corporation | Circuit breaker including open neutral interlock |
| DE102008004868A1 (de) * | 2008-01-17 | 2009-07-30 | Siemens Aktiengesellschaft | Fehlerstromschutzschalter |
| FR2927195A1 (fr) * | 2008-02-04 | 2009-08-07 | Hager Electro S A S Soc Par Ac | Appareil electrique de coupure a connexion haute et basse |
| CN202218000U (zh) * | 2010-05-14 | 2012-05-09 | 帕西·西姆公司 | 具有改进的浪涌保护的保护装置 |
-
2017
- 2017-12-01 AU AU2017441384A patent/AU2017441384B2/en active Active
- 2017-12-01 EP EP17816969.4A patent/EP3718126A1/fr active Pending
- 2017-12-01 CN CN201780097034.9A patent/CN111542905B/zh active Active
- 2017-12-01 WO PCT/FR2017/053358 patent/WO2019106241A1/fr not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0325071B1 (fr) * | 1988-01-20 | 1993-04-28 | Hager Electro S.A. | Appareil de protection d'installations électriques |
| US20130329331A1 (en) * | 2012-06-11 | 2013-12-12 | Schneider Electric USA, Inc. | Wireless Branch Circuit Energy Monitoring System |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2019106241A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2017441384A1 (en) | 2020-05-14 |
| CN111542905B (zh) | 2023-01-31 |
| CN111542905A (zh) | 2020-08-14 |
| AU2017441384B2 (en) | 2021-05-20 |
| WO2019106241A1 (fr) | 2019-06-06 |
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