EP4064314A1 - Elektrische schutzvorrichtung - Google Patents

Elektrische schutzvorrichtung Download PDF

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Publication number
EP4064314A1
EP4064314A1 EP22164341.4A EP22164341A EP4064314A1 EP 4064314 A1 EP4064314 A1 EP 4064314A1 EP 22164341 A EP22164341 A EP 22164341A EP 4064314 A1 EP4064314 A1 EP 4064314A1
Authority
EP
European Patent Office
Prior art keywords
configuration
latch
indicator
switching mechanism
drawer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP22164341.4A
Other languages
English (en)
French (fr)
Other versions
EP4064314B1 (de
EP4064314C0 (de
Inventor
Claude Burnot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP4064314A1 publication Critical patent/EP4064314A1/de
Application granted granted Critical
Publication of EP4064314B1 publication Critical patent/EP4064314B1/de
Publication of EP4064314C0 publication Critical patent/EP4064314C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • 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
    • 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
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor

Definitions

  • the present invention relates to an electrical protection device.
  • An electrical installation of a building generally comprises an electrical panel, connecting this electrical installation to a collective electricity distribution network and comprising various devices for the protection, control and monitoring of the electrical installation.
  • the electrical protection devices there is known in particular a circuit breaker, which aims to protect the electrical installation, or a person, vis-à-vis an electrical fault of an electrical circuit of the installation, by opening the circuit electric.
  • the circuit breaker is tripped by an overload, a short circuit or a differential electrical fault within this circuit.
  • EP2975628B1 describes a signaling device for an electrical protection device, which incorporates a magnetic trip device, to open the circuit when a short-circuit type fault occurs, and a thermal trip device, to open the circuit when an overload type fault occurs occurs.
  • the signaling device comprises a so-called "any type of fault” signaling means, which is activated to signal the tripped state of the device when an electrical fault occurs, whether this fault is an overload or a short- circuit.
  • the signaling device also comprises a so-called “second” signaling means, which can be activated to signal the tripped state of the device upon the occurrence of an electrical fault exclusively of the short-circuit type. This signaling device therefore enables the user to easily distinguish the type of fault which led to the tripping of the device.
  • the second signaling means of this known device is moved by the striker of the magnetic trip unit under the effect of the short-circuit, the movement of the striker being transmitted to the signaling means via of a lever.
  • a magnetic trip unit moves the striker with a relatively large effort when the magnetic fault occurs, capable of triggering the opening of the contacts and moving the signaling means, other types of triggers do not develop such an effort.
  • the constant need to miniaturize the trip units in order to miniaturize the protection device leads to the obtaining of trip units developing a lower force.
  • certain triggers produce a weak effort simply because of their operation.
  • the low force developed by these trip units could prove to be insufficient to cause both opening of the contacts and movement of a signaling means.
  • the invention more particularly intends to remedy, by proposing a new electrical protection device with a trip device, capable of signaling the occurrence of an electrical fault even if the trip device produces a particularly weak force.
  • the subject of the invention is an electrical protection device, comprising a casing and a first conduction path, which comprises a movable contact which is housed in the casing and which is movable between a conduction position, in which the movable contact electrically connects a first input terminal to a first output terminal belonging to the first conduction path, and an isolation position, in which the first input terminal and the first output terminal are electrically isolated from each other .
  • the electrical protection device also includes a switching mechanism, which is housed in the housing and which is configured to switch between an armed configuration, in which the switching mechanism places the movable contact in the conduction position, and a tripped configuration, in which the switching mechanism places the movable contact in the isolated position.
  • the electrical protection device also includes a first trip device, which is housed in the housing and which is configured to trigger a changeover of the switching mechanism from the armed configuration to the tripped configuration when the first trip device is energized by an electrical fault. a first type.
  • the electrical protection device also comprises a first indicator, which is housed in the housing and which is movable relative to the housing, between a primary signaling position and a secondary signaling position, the first indicator being visible from outside the housing for at least one signaling position of the first light from among the primary signaling position and the secondary signaling position.
  • the electrical protection device further comprises: a drawer, which is movable in translation relative to the housing, between an actuation position, in which the drawer puts the first indicator light in the primary signaling position, and a initial position, in which the drawer authorizes the first indicator to be placed in the secondary signaling position; a spool spring, which applies an actuating force to the spool, tending to move the spool from the initial position to the actuating position; and a latch, which is movable between a holding position, in which the latch holds the drawer in the initial position, when the drawer is in the initial position, and a release position, in which the latch allows the drawer to be moved from the initial position to the actuation position, the first trigger being configured to move the latch from the hold position to the release position when the first trigger is energized.
  • the drawer causes the switching mechanism to switch from the armed configuration to the triggered configuration when the drawer
  • An idea at the base of the invention is to provide for the first light to be actuated by the drawer, under the action of the drawer spring, rather than directly by the trigger.
  • the drawer Before the occurrence of an electrical fault of the first type, the drawer is in the initial position, being retained there by the latch in the holding position, against the actuating force applied by the drawer spring on the drawer.
  • the trip releases the drawer by actuating the latch to the release position, which requires little effort on the part of the trip device.
  • the spool spring to produce a relatively large actuating force to move the spool from the initial position to the actuating position, so that the spool drives the first light from the secondary signaling position to the primary signaling position without difficulty, and independently of the effort produced by the first trigger.
  • the drawer, the drawer spring and the latch have a function of mechanical force amplifier, thus ensuring that the first trigger can actuate the first light even if the first trigger develops a relatively weak force.
  • the invention is particularly suited to the case where the first trip device is a differential trip device.
  • the switching mechanism is configured to put the first indicator in the secondary signaling position when the switching mechanism is put in the armed configuration.
  • the switching mechanism comprises a yoke, which is pivotally mounted relative to the housing between an armed position, to place the movable contact in the conduction position, the switching mechanism being in the armed configuration when the yoke is in the armed position , and a tripped position, to place the moving contact in the isolated position, the switching mechanism being in the tripped configuration when the yoke is in the tripped position.
  • the moving contact moves the slide to the initial position.
  • the yoke is configured to drive the first light to the secondary signaling position, when the stirrup is moved to the cocked position.
  • the electrical protection device further comprises a second conduction path, which is electrically isolated from the first conduction path and which comprises a second input terminal and a second output terminal.
  • the first trigger is a differential trigger, which comprises: a differential sensor, configured to be excited when a differential current exceeds a predetermined threshold, the differential current being equal to a difference between a first current flowing in the second path of conduction and a second current flowing in the first conduction path, and a relay, configured to drive the lock from the hold position to the release position, under the sole action of electrical energy from the differential sensor, and generated under the effect of the differential current, while the differential current exceeds the predetermined threshold.
  • the first indicator is rotatable relative to the housing, around an indicator axis.
  • the drawer is movable in translation relative to the casing, along a drawer axis fixed relative to the casing and orthoradial relative to the indicator axis.
  • the electrical protection device further comprises a notch, which is configured to prevent movement of the first indicator from the secondary signaling position to the primary signaling position and to prevent the movement of the first LED from the primary signaling position to the secondary signaling position.
  • the lock is pivotable relative to the housing around a lock axis.
  • the electrical protection device further comprises a latch spring, which applies a holding force to the latch, tending to move the latch from the release position to the holding position.
  • the electrical protection device further comprises a switching control, which is operable between a closed position and an open position.
  • the switching mechanism comprises: another spring, also called a “stirrup spring”, which exerts a triggering force tending to cause the switching mechanism to switch from the armed configuration to the triggered configuration; a latch, which is configured to change between: a latch configuration, wherein the latch ties the position of the switch control to the configuration of the switch mechanism, such that the switch mechanism is in the triggered configuration when the switch control switching is in the open position, and in the armed configuration when the switching control is in the closing position, and an unlocking configuration, in which the latch allows the switching mechanism to be switched to the tripped configuration under the action of the tripping force, even if the switching control is in the closed position.
  • the drawer is configured to put the latch in the unlocking configuration when the drawer is in the actuating position.
  • the electrical protection device further comprises: a second trigger, which is housed in the housing and which is configured to put the latch in the unlocked configuration to switch the switching mechanism to the triggered configuration when the second trigger is energized by an electrical fault of a second type; and a second indicator, which is housed in the casing and which is movable relative to the casing, between a primary signaling position and a secondary signaling position, the second indicator being visible from outside the casing for at least one position of signaling of the second light from among the secondary signaling position and the primary signaling position.
  • the latch is configured to put the second light in the primary signaling position, when the switching mechanism is switched to the triggered configuration while the latch is in the unlock configuration.
  • the switching mechanism is configured to place the second light in the secondary signaling position, when the switching mechanism is placed in the armed configuration.
  • the housing comprises a front, comprising a window.
  • the first light comprises a light, the positioning of which relative to the window is different when the first light is in the secondary signaling position and when the first light is in the primary signaling position.
  • the figure 1 shows an electrical panel according to the invention.
  • the electrical panel is configured to be integrated into an electrical installation, for example equipping a building.
  • the electrical panel includes several electrical protection devices.
  • the electrical panel is modular, the electrical protection devices can be arranged differently, interchanged and/or replaced, and electrical protection devices can be removed and/or added, depending on the needs of the electrical installation to which the table is intended to be embedded. Electrical protection devices can be of several types.
  • the electrical panel comprises electrical protection devices 1 of a first type and electrical protection devices 19 of a second type.
  • a direction of width X1, a direction of depth Y1 and a direction of height Z1 are defined, which are mutually perpendicular and which are fixed with respect to one of the devices 1, in accordance with the invention, and which is shown alone on the figures 2 to 9 .
  • the electrical panel comprises a fixing rail 18, on which the electrical protection devices 1 and 19 are fixedly attached.
  • the fixing rail 18 is advantageously arranged in a horizontal orientation.
  • Device 1 is advantageously mounted on rail 18 so that direction X1 is parallel to the rail. More generally, the electrical protection devices 1 and 19 are juxtaposed along the rail 18, one against the other, in the direction X1.
  • the device 1 is advantageously mounted on the rail 18 so that the direction Z1 is directed upwards.
  • Device 1 is arranged in direction Y1 with respect to rail 18.
  • the electrical panel further comprises a supply comb 17, which extends parallel to the rail 18, being arranged above the rail 18.
  • the comb 17 is connected to the devices 1 and 19 to supply them with electrical energy.
  • the comb 17 comprises connectors 16 via which the comb 17 is connected to the devices 1 and 19.
  • the connectors 16 are divided into several groups, all the connectors 16 of the same group being electrically connected to each other and electrically isolated from the connectors 16 belonging to the other group or groups.
  • at least two groups of connectors 16 are provided, in the case of a single-phase installation. In this case, a group of connectors 16 is brought to a neutral potential of the electrical installation, so that this group of connectors 16 supplies electrical energy to the devices 1 and 19 at neutral potential.
  • another group of connectors 16 is brought to a phase potential of the electrical installation, so that this group of connectors 16 supplies electrical energy to devices 1 and 19 at phase potential.
  • other groups of connectors 16 in particular in the case of a three-phase installation, where two other groups of connectors 16 are brought to different phase potentials from the previous groups.
  • some protection devices, such as the 1 devices are connected to only two groups of connectors 16, to be powered by a phase and the neutral, that is to say in single phase, while others, such as the devices 19 are supplied by the three phases and the neutral, that is to say three-phase.
  • the device 1 comprises a housing 2.
  • the directions X1, Y1 and Z1 are fixed with respect to the housing 2.
  • the housing 2 constitutes an essentially closed and electrically insulating envelope.
  • the case 2 advantageously comprises a front 20 and a back 21, distributed along the direction of depth Y1, with the front 20 in the direction Y1 with respect to the back 21.
  • the case 2 advantageously comprises a lower end 22 and an upper end 23 distributed along the direction Z1, with the upper end 23 in the direction Z1 with respect to the lower end 22.
  • the housing 2 advantageously comprises a right side 24 and a left side 25, preferably flat and parallel to each other, distributed along the direction X1, with the left side 25 in the direction X1 with respect to the right side 24, the left side 25 being arranged to the left of the right side 24 in the mounted configuration of the device 1 on the electrical panel.
  • the front 20 and the back 21, as well as the sides 24 and 25, connect the ends 22 and 23 to each other in the direction Z1.
  • the front 20, the back 21 and the ends 22 and 23 connect the sides 24 and 25 to each other in the direction X1.
  • the sides 24 and 25 and the ends 22 and 23 connect the back 21 to the front 20, in the direction Y1.
  • the faceplate 20 comprises a forward portion 95, a recessed portion 96 and a recessed portion 97.
  • the recessed portion 96 connects the forward portion 95 to the end 22, while the recessed portion 97 connects the advanced 95 at the end 23.
  • the advanced part 95 is arranged projecting in the direction Y1 with respect to the parts 96 and 97.
  • flank 24 and the advanced part 95 of the facade 20 are omitted to reveal the contents of the box 2.
  • flank 25 and the advanced part 95 of the front 20 are omitted to reveal the contents of the box 2.
  • the housing 2 comprises an internal partition 27 visible on the figures 3 to 9 , which extends parallel to the directions Y1 and Z1 and separates an internal volume of the housing 2 into a right compartment 28, visible on the figure 3 , 5 , 7 and 9 and in a compartment left 29, visible on the figure 4 , 6 and 8 .
  • the compartments 28 and 29 are distributed along the direction X1.
  • the compartment 28 is delimited by the partition 27 and the side 24 in the direction X1, by the ends 22 and 23 in the direction Z1, and by the front 20 and the back 21 in the direction Y1.
  • the compartment 29 is delimited by the partition 27 and the left side 25 in the direction X1, by the ends 22 and 23 in the direction Z1, and by the front 20 and the back 21 in the direction Y1.
  • the device 1 is designed to be fixed on the fixing rail 18 via the casing 2.
  • the device 1 advantageously comprises, on the back 21, any suitable fixing means, such as example a snap clamp 26 as seen on the figures 2 to 8 , by means of which the device 1 can be fixedly attached to the rail 18, preferably by hand and without tools.
  • the back 21 of the box 2 is directed towards the rail 18 and the front 20 is opposite the rail 18.
  • the left side 25 of a first device 1 is against the right side 24 of a second device 1.
  • the device 1 comprises a conduction path 3, visible on the figure 3 , 5 and 7 , and a conduction path 4, visible on the figure 4 , 6 and 8 , each conduction path forming one of the poles of the device 1.
  • the conduction path 3 comprises an input terminal 31, an output terminal 32, a movable contact 33 and a fixed contact 34, visible on the figure 3 , 5 and 7 .
  • the conduction path 4 comprises an input terminal 41, an output terminal 42, a movable contact 43 and a fixed contact 44, visible on the figure 4 , 6 and 8 .
  • Each conduction path 3 or 4 constitutes a separate pole of device 1.
  • path 3 constitutes a phase pole
  • path 4 constitutes a neutral pole.
  • each conduction path is designed to be brought to a separate potential.
  • the device 1 is designed to be used at low voltage, that is to say a voltage between 100 V (Volts) and 600 V, for example a voltage of 230 V.
  • each conduction path is essentially, if not entirely, arranged in one of the respective compartments 28 or 29 of the housing 2.
  • the conduction path 3 is arranged in the right-hand compartment 28 and the conduction 4 is arranged in the left compartment 29.
  • the internal partition 27 is advantageously interposed between the paths 3 and 4, so as to ensure that they are electrically isolated from each other.
  • the input terminals 31 and 41 are arranged at the upper end 23 of the casing 2, so as to be able to be electrically connected to the connectors 16 of the supply comb 17 belonging to the electrical panel.
  • the connector 16 concerned is plugged into the input terminal concerned.
  • Each input terminal advantageously has a respective cavity, opening at the end 23 to receive the connector 16 concerned, and a respective screw, the head of which opens for example on the front 20, here in the recessed part 97, to ensure the maintenance and good electrical contact between this input terminal and this connector.
  • the input terminal 31 is connected to a connector 16 belonging to a first group of connectors of the supply comb 17 brought to the phase potential, while the input terminal 41 is connected to another connector 16, belonging to a second group of connectors of the supply comb 17 brought to neutral potential.
  • any terminal described herein may be of a type other than a screw terminal.
  • any terminal can be an automatic terminal, a plug-in terminal or a quick connector terminal.
  • the output terminals 32 and 42 are preferably arranged at the lower end 22 of the casing 2, so as to be able to be electrically connected to an electrical circuit of the electrical installation, supplying receiving loads, for example, in the case of a building, appliances and/or lighting. Depending on the position of the contacts 33 and 43, these receiving loads are then supplied or not with the electrical energy supplied to the input terminals 31 and 41 by the supply comb 17, through the device 1.
  • Each terminal of output advantageously has a respective cavity, opening at the end 22 to receive a respective connector of the circuit to be powered, and a respective screw, the head of which opens for example on the front 20, here in the recessed part 96, to ensure the maintenance and the good electrical contact between this input terminal and this connector.
  • the fixed contact 34 is here fixed relative to the housing 2, and is electrically connected to the input terminal 31.
  • the movable contact 33 is here electrically connected to the output terminal 32.
  • the fixed contact 34 is arranged in the direction Z1 with respect to the moving contact 33.
  • the movable contact 33 preferably comprises a conductive end 35, performing the function of electrical contact, and which is electrically connected to the output terminal 32.
  • the movable contact 33 preferably comprises a contact carrier 36, which carries the end 35.
  • the movable contact 33 is pivotable, relative to housing 2, via contact carrier 36, around a movable contact axis X33, parallel to the direction X1. This pivoting is performed between a conduction position, shown on the picture 3 , and an isolated position, shown on the figure 5 . In the conduction position of the movable contact 33, the conductive end 35 is in electrical contact with the fixed contact 34, which electrically connects the input terminal 31 to the output terminal 32.
  • the end 35 of the movable contact 33 is moved away from the fixed contact 34, so as to be electrically isolated from it, which breaks the electrical connection between the terminals 31 and 32, so that the terminals 31 and 32 are electrically isolated from one of the 'other.
  • the fixed contact 44 is here fixed relative to the housing 2, and is here electrically connected to the input terminal 41.
  • the movable contact 43 is here electrically connected to the output terminal 42.
  • the fixed contact 44 is here arranged in the direction Z1 with respect to the moving contact 43.
  • Movable contact 43 preferably comprises a conductive end 45, ensuring the electrical contact function, and which is electrically connected to output terminal 42. Movable contact 43 also comprises a contact carrier 46, which carries end 45.
  • the movable contact 43 is pivotable, relative to housing 2, via contact carrier 46, around axis X33, that is to say around the same axis as that of movable contact 33.
  • axis X33 that is to say around the same axis as that of movable contact 33.
  • the pivoting of the contacts 33 and 43 takes place around two distinct axes, preferably parallel. The pivoting of the contact 43 is carried out between a conduction position, shown on the figure 4 , and an isolated position, shown on the figure 6 .
  • the conductive end 45 is in electrical contact with the fixed contact 44, which electrically connects the input terminal 41 to the output terminal 42.
  • the end 45 of the movable contact 43 is moved away from the fixed contact 44, so as to be electrically isolated therefrom, which breaks the electrical connection between the terminals 41 and 42, so that the terminals 41 and 42 are electrically isolated from one another. other.
  • Movable contacts 33 and 43 are advantageously pivotable with respect to housing 2 independently. When they move from their respective isolation position to their respective conduction position, the movable contacts 33 and 43 advantageously rotate in the same direction. In particular, the conductive ends 35 and 45 are then moved away from the direction Z1, that is to say towards the output terminals 32 and 42, i.e. towards the lower end 22.
  • the device 1 comprises an interrupting chamber 9, which is shown on the figure 3 , 5 and 7 .
  • the arcing chamber 9 aims to confer a breaking capacity on the device 1, by dissipating any electric arc which could occur when the moving contact 33 passes from the conduction position to the isolation position, that is to say when he walks away from fixed contact 34.
  • the breaking chamber 9 is advantageously arranged in the right-hand compartment 28, between the fixed contact 34 and the input terminal 31, along the back 21.
  • the input terminal 31 is interposed between the cut 9 and upper end 23.
  • the interrupting chamber 9 comprises for example a stack of metal plates 91, sometimes called fins or separators, superimposed at a distance from one another, here in the direction Y1.
  • the plates 91 are for example held between the internal partition 27 and the right side 24 of the casing 2.
  • the interrupting chamber 9 advantageously comprises insulating flanges, not shown, between which the plates 91 are arranged.
  • the interrupting chamber 9 advantageously comprises two switching horns 92 and 93.
  • the horn 92 is electrically connected to the path 3, by extending the fixed contact 34.
  • the horn 93 is electrically connected to the path 3, between the movable contact 33 and the terminal outlet 32
  • the horn 92 is preferably curved towards the inside of the interrupting chamber 9, that is to say towards the plates 91, and is arranged facing the horn 93.
  • the electrical protection device 1 further comprises at least one trip device.
  • the protection device comprises three trip units 6, 7 and 8, each configured to be excited by an electrical fault of a distinct respective predetermined type.
  • Each trigger 6, 7 and 8 is designed to individually trigger an isolation position of the contacts 33 and 43, when the trigger 6, 7 or 8 in question is excited.
  • the trigger 6, visible on the figure 3 , 5 and 7 is configured to be excited by an electrical fault of the short-circuit type, which is liable to occur between the conduction paths 3 and 4, or between the path 3 and the earth.
  • the trigger 6 is therefore in particular excited by a short-circuit which would occur downstream of the output terminals 32 and 42, on the electrical circuit supplied through the device 1, or on one of its loads. In this case, it is a phase-to-neutral short-circuit or a phase-to-earth short-circuit.
  • the trigger 6 is arranged in the right-hand compartment 28, and connected in series on the conduction path 3.
  • the trigger 6 is arranged between the input terminal 31 and the fixed contact 34.
  • the trigger 6 is arranged between the interrupting chamber 9 and the front 20 of the housing 2.
  • the trigger 6 is arranged between the right side 24 of the housing and the internal partition 27 of the housing.
  • Trigger 6 is sometimes called magnetic trigger.
  • the trigger 6 is in the form of a magnetic actuator, which here comprises an electromagnetic winding 61 and a mobile core 62.
  • the core 62 is visible only on the figure 7 .
  • the input terminal 31 is electrically connected to the fixed contact 34 through the trigger 6, in particular the electromagnetic winding 61.
  • the trigger 7, visible on the figure 3 , 5 and 7 is configured to be excited by an electrical fault of another predetermined type, namely an electrical fault of the overload type, which is liable to occur between the conduction paths 3 and 4.
  • the trigger 7 is therefore in particular excited by a overload which would occur downstream of the output terminals 32 and 42, on the electrical circuit supplied through the device 1, or on one of its loads.
  • This type of fault can occur when one or more loads connected to this electrical circuit impose an excessive current demand.
  • the trigger 7 is arranged in the right-hand compartment 28, and connected in series on the conduction path 3.
  • the trigger 7 is arranged between the output terminal 32 and the movable contact 33.
  • the trigger 7 is arranged between the back 21 and the front 20 of the case 2.
  • the trigger 7 is arranged between the right side 24 of the case and the internal partition 27 of the case.
  • Trigger 7 is sometimes called thermal trigger.
  • the trigger 7 is in the form of a thermal actuator, which is here formed by an electrically conductive bimetallic strip.
  • the movable contact 33 is electrically connected to the output terminal 32 via the trigger 7, that is to say here via the bimetallic strip.
  • a flexible braid 71 belonging to path 3, electrically connects moving contact 43 to trip unit 7.
  • the trigger 8 is configured to be excited by an electrical fault of another predetermined type, namely an electrical fault of the differential type, which is liable to occur between the conduction paths 3 and 4.
  • the trigger 8 is therefore in particular excited by a current leakage to earth, which would occur downstream of the output terminals 32 and 42, then causing a difference between the value of the intensity of the current flowing within the conduction path 3 and the value of the intensity of the current flowing within the conduction path 4. More specifically, the trigger 8 is excited when a differential current exceeds a predetermined value, for example 30 mA (milliamperes), this differential current being equal to the difference between the current flowing in path 3 and the current flowing in path 4.
  • a predetermined value for example 30 mA (milliamperes
  • the trigger 8 extends both in the compartments 28 and 29, crossing the internal partition 27.
  • the trigger 8 is advantageously arranged between on the one hand, the output terminals 32 and 42, and on the other hand, the movable contacts 33 and 43.
  • Trigger 8 is sometimes called differential trigger.
  • the trigger 8 comprises a differential sensor 81, which extends both in the compartments 28 and 29, being arranged along the back 21 of the case 2.
  • the trigger 8 comprises a relay 82, which extends only in the left compartment 29, being for example arranged between the front 20 and the differential sensor 81.
  • the relay 82 here comprises a movable rod 83, which is moved relative to the housing 2 between a rest position, shown on the figure 4 and 6 , and a triggered position, shown on the figure 8 , when the trigger 8 is energized.
  • the movement of the movable rod 83 from the rest position to the triggered position is carried out in the direction Z1, that is to say towards the upper end 23.
  • the differential sensor 81 comprises for example a ferromagnetic core carrying two electromagnetic windings, one formed by path 3 and the other formed by path 4.
  • the electromagnetic winding of path 3 is advantageously formed by part of path 3 electrically connecting the movable contact 33 to the output terminal 32. More specifically, the electromagnetic winding of path 3 electrically connects the trigger 7 and the output terminal 32.
  • the electromagnetic winding of the path 4 is advantageously formed by a part of the path 4 which electrically connects the movable contact 43 to the output terminal 42.
  • the movable contact 43 and the differential sensor 81 are electrically connected using a braid, not shown.
  • the core of the differential sensor 81 advantageously carries a third winding, not visible in the figures, connected to the relay 82. Since the three windings of the trigger 8 are wound around the same core, an electric current is induced within the winding connected to the relay 82 when the differential current of paths 3 and 4 is non-zero. The third winding then electrically supplies relay 82 with the induced current.
  • the movement of the rod 83 from the rest position to the triggered position is actuated by the relay 82 only on the basis of the electric current induced by the sensor 81. Then, no other source of power is provided. energy for the trigger 8. More generally, the relay 82 is preferably configured to actuate the movement of the rod 83 to the triggered position under the sole action of electrical energy from the differential sensor 81, when the differential current exceeds the predetermined threshold.
  • the electrical protection device 1 also includes a switching mechanism 10.
  • Switch mechanism 10 is housed in housing 2, partly in compartment 28 and partly in compartment 29. Switch mechanism 10 is configured to switch between an armed configuration, shown in the figure 3 and 4 , in which the mechanism 10 puts the movable contacts 33 and 43 in the conduction position, and a triggered configuration, shown on the figure 5 and 6 , wherein the switching mechanism 10 puts the movable contacts 33 and 43 in the isolated position.
  • the switching mechanism 10 comprises a bracket 101, visible on the figures 3 to 9 .
  • the stirrup 101 is pivotable with respect to the housing 2 around a stirrup axis X101, parallel to the axis X33.
  • the stirrup 101 extends both in the compartments 28 and 29, being carried by the internal partition 27, straddling the latter.
  • the stirrup 101 When the mechanism 10 is in armed configuration, the stirrup 101 is in a first orientation called “armed position” with respect to the housing 2, around the axis X101. When the mechanism 10 is in the triggered configuration, the stirrup 101 is in a second orientation called “triggered position”, around the axis X101.
  • Mechanism 10 actuates movable contacts 33 and 43 via yoke 101.
  • the caliper 101 comprises a plate 102, arranged in the compartment 29 and a plate 103, sometimes called counter-plate, arranged in the compartment 28.
  • the plates 102 and 103 are fixed relative to each other , being arranged on either side of the internal partition 27.
  • the plates 102 and 103 are integrally pivoting around the axis X101, according to the same movement as the stirrup 101 as a whole.
  • the caliper 101 comprises for example a cam 105, here formed by the plate 102.
  • the cam 105 is arranged in the left compartment 29.
  • the caliper 101 drives the movable contact 43 via the cam 105, from the conduction position to the isolation position, when the stirrup 101 is pivoted from the armed position to the triggered position.
  • the cam 105 bears against the contact carrier 46.
  • the switching mechanism 10 advantageously comprises a spring 106, called “contact spring”, which is arranged in the left compartment 29 while resting both on the stirrup 101, here on the plate 102, and on the contact 43, here on the contact holder 36.
  • contact spring a spring 106
  • the stirrup 101 drives the contact 43 from the isolated position to the position conduction via the spring 106.
  • the spring 106 to apply a force to the contact 43, resting on the yoke 101, preferably on the cam 105, which tends to press the movable contact 43 against the fixed contact 44, when the stirrup 101 is in the armed position. This effort makes it possible to ensure satisfactory contact pressure between the movable contact 43 and the fixed contact 44.
  • the stirrup 101 comprises for example a cam 107, here formed by the plate 103.
  • the cam 107 is arranged in the right compartment 28.
  • the stirrup 101 drives the movable contact 33 from the conduction position to the position insulation, when the stirrup 101 is pivoted from the armed position to the triggered position.
  • the cam 107 bears against the contact carrier 36.
  • the switching mechanism 10 advantageously comprises a spring 108, called a "contact spring”, which is arranged in the right-hand compartment 28, resting both on the stirrup 101, in particular on the plate 103, and on the moving contact 33, in particular on contact carrier 36.
  • a spring 108 which is arranged in the right-hand compartment 28, resting both on the stirrup 101, in particular on the plate 103, and on the moving contact 33, in particular on contact carrier 36.
  • the switching mechanism 10 further comprises a spring 109, called “caliper spring”, visible on the figure 4 , 6 and 8 .
  • the caliper spring 109 is here arranged in the left compartment 29 of the housing 2.
  • the caliper spring 109 applies a force, called “tripping force”, on the caliper 101, here via the plate 102, by taking pressing on the housing 2, which tends to move the stirrup 101 from the armed position to the triggered position. In other words, the trigger force tends to cause the mechanism 10 to switch from the armed configuration to the triggered configuration.
  • the stirrup spring 109 is a helical torsion spring, mounted on the internal partition 27, of which a first branch 110 bears against a stop formed by the partition 27 of the housing 2 and of which a second branch of output 111 bears against a stop belonging to plate 102, to apply the triggering force to stirrup 101.
  • the electrical protection device 1 also comprises a switching control 5.
  • the control 5 is designed to be actuated by a user, between an open position and a closed position.
  • the switching control 5 is here in the form of a handle, which is pivotable relative to the housing 2, about a handle axis X5, parallel to the axis X1, between a closed position, shown on the figure 3 and 4 , and an open position, shown on the figure 5 and 6 .
  • the switch control 5 here comprises a base 51, via which the handle is attached to the housing 2 in a pivoting manner.
  • the base 51 is arranged through an opening belonging to the facade 20, closing this opening.
  • the control 5 passes through the advanced part 95 of the facade 20, through which said opening is made.
  • the base 51 advantageously extends on either side of the internal partition 27.
  • the control 5 is advantageously centered, along the direction X1, on the facade 20.
  • the control switch 5 comprises a crank pin 52, carried by the base 51, and through which a user can actuate the control 5 in rotation. To be accessible by the user, the crankpin 52 is arranged outside the housing 2.
  • the switching mechanism 10 advantageously comprises a spring 53, called the "control spring", visible on the figure 4 , 6 and 8 .
  • the control spring 53 applies a force to the control 5, resting on the housing 2, which tends to bring the control 5 from the closed position to the open position.
  • the control spring 53 is a helical torsion spring, housed inside the base 51 around the joystick axis X5, and one branch of which rests on the control 5 and another branch rests on the internal partition 27.
  • the position of the command 5, visible from the outside of the housing 2 visually indicates to the user the current configuration ordered for the device 1, namely a setting in the isolation position of the contacts 33 and 43 when control 5 is in the open position, and placing contacts 33 and 43 in the conduction position when control 5 is in the closed position.
  • the switching mechanism 10 advantageously comprises a connecting rod 54, visible on the figure 4 , 6 and 8 .
  • the connecting rod 54 is for example arranged in the left compartment 29.
  • the connecting rod 54 comprises an end 55 attached to the control 5, in particular to the base 51. Via this end 55, the connecting rod 54 can pivot relative to control 5, around an axis which is parallel to and not coincident with the joystick axis X5.
  • the rotation of the control 5 is linked to a crank movement, that is to say an arc of a circle around the axis X5, of the end 55.
  • the connecting rod 54 comprises an end 56, opposite the end 55. As explained below, the connecting rod 54 can be secured or released from the bracket 101, to secure or decouple the position of the control 5 from that of the stirrup 101.
  • the end 56 is received in a groove 112, provided in the plate 102, in order to be guided along this groove 112.
  • This groove 112 allows a circular displacement of the end 56 with respect to the platinum. This circular displacement takes place here in a plane parallel to the directions Y1 and Z1.
  • the switching mechanism 10 advantageously comprises a locking latch 115, visible on the figures 3 to 10 .
  • a locking latch 115 As seen on the figure 4 , 6 , 8 and 10 , at least a part of the latch 115 is arranged in the same compartment as that of the connecting rod 54, to cooperate with the latter, here the left compartment 29. At least a part of the latch 115 extends in the compartment or compartments where are housed the triggers 6, 7 and 8, to cooperate mechanically with the latter, here the compartments 28 and 29.
  • the latch 115 is advantageously carried by the stirrup 101.
  • the latch 115 evolves between a locking configuration, shown on the figures 3 to 6 and 10 , and an unlock configuration, shown on the figures 7 to 9 .
  • each trigger 6, 7 and 8 is configured to switch the locking latch 115 from the locking configuration to the locking configuration. unlocking, directly or indirectly, when said trigger 6, 7 or 8 concerned is excited by an electrical fault, of the predetermined type for this trigger.
  • the latch 115 comprises a latch 116 and a hook 117 which cooperate together.
  • hook 117 extends into both compartments 28 and 29, so as to be visible on the figures 3 to 10 .
  • the hook 117 In practice, provision is made for the hook 117 to extend both into the compartment or compartments receiving the triggers in order to be actuated by the latter, directly or indirectly.
  • the hook 117 also extends into the compartment where the lock 116 is located, to cooperate with the latter.
  • the hook 117 is carried by the stirrup 101, being pivotable with respect to the stirrup 101 around an axis X117, called “hook axis", here parallel and not coincident with the axis of the stirrup X101. This pivoting is performed when the latch 115 moves between the locking and unlocking configurations.
  • the lock 116 extends into the left compartment 29, so as to be visible above all on the figure 4 , 6 , 8 and 10 .
  • the latch 116 is carried by the stirrup 101, being pivotable relative to the stirrup 101 around an axis X116, called "lock axis", here parallel and not coincident with the axis X101.
  • the hook 117 In the locking configuration, the hook 117 is in a so-called “holding orientation”, where the hook 117 keeps the lock 116 in a so-called “capture orientation”.
  • the hook 117 comprises for example a radial arm 118, against which the lock 116 comes into rotational abutment.
  • the hook 117 In the unlocking configuration, the hook 117 is in a so-called “stall orientation” orientation, where the hook 117 allows the latch 116 to be pivoted with respect to the stirrup 101 out of its capture orientation.
  • the hook 117 pivots clockwise to pass from the holding orientation to the unhooking orientation.
  • the hook 117 and the latch 116 are in contact, so that the latch 116 is prevented from rotating around the axis of the latch X116 by the hook 117, whereas in the unlocking configuration, the hook 117 and the latch 116 are not in contact, so that the latch 116 is not prevented from pivoting around the latch axis X116 by the hook 117.
  • the switching mechanism 10 advantageously comprises a spring 119, called the "latch spring", visible on the figure 3 , 5 , 7 and 9 .
  • the latch spring 119 is provided in the right compartment 28.
  • the spring 119 applies a force on the hook 117, resting on the plate 103 of the stirrup 101, which tends to bring the hook 117 towards the holding orientation.
  • the hook 117 is allowed to be moved from the unhooking orientation to the holding orientation by the latch 116 under the action of the spring 119, when the latch 116 is at again in capture orientation.
  • spring 119 is a helical torsion spring, one branch of which rests on yoke 101, here on plate 103, and another branch of which rests on hook 117.
  • the end 56 of the connecting rod 54 is captured by the locking latch 115, in particular by the latch 116, itself held in the capture orientation by the hook 117 which is in the holding orientation. . Indeed, the end 56 is received in a through hole 120 of the latch 116 so as to prevent the end 56 from moving along the groove 112 of the yoke 101.
  • the second end 56 is attached to the stirrup 101 while being pivotable with respect to said stirrup 101, here by cooperation of the end 56 with the hole 120 and the groove 112. Consequently, in the locking configuration of the latch 115, the position of the switching control 5 is subject to the position of the stirrup 101, via the connecting rod 54 and the latch 115.
  • the stirrup 101 In the locking configuration of the latch 115, when the control 5 is actuated from the open position to the closed position by the user, the stirrup 101 is put in the armed position, by means of the connecting rod 54, of which the second end 56 is captured by the latch 115 to drive the stirrup 101.
  • the stirrup 101 being placed in the armed position, it puts the movable contacts 33 and 43 in the conduction position, via the springs 106 and 108.
  • the stirrup 101 In the locking configuration of the latch 115, when the switching control 5 is placed in the open position by the user, the stirrup 101 is placed in the released position, by means of the connecting rod 54, the end of which 56 is captured by the locking latch 115 to drive the stirrup 101.
  • the stirrup 101 being placed in the triggered position, it puts the contacts 33 and 43 in the isolated position, via the cams 105 and 107.
  • the connecting rod 54 is in the locking orientation when the end 55 is positioned in a direction opposite to the direction Y1 with respect to a straight line, parallel to the directions Y1 and Z1 and crossing the axis of lever X5 and the end 56.
  • the end 55 is moved in an arc of a circle so as to approach said line.
  • the connecting rod 54 is no longer in the locking orientation, so that the maintenance mutual in position between the stirrup 101 and the control 5 is no longer assured.
  • stirrup 101 is moved to the triggered position and the control 5 is brought back to the open position.
  • the stirrup 101 is in the released position and the control 5 is in the open position, they are held in these positions by the springs 53 and 109.
  • the control 5 places the mechanism 10 in the armed configuration.
  • the latch 115 is in the locking configuration and the control 5 is in the open position, the control 5 puts the mechanism 10 in the triggered configuration.
  • Each trigger 6, 7 and 8 is individually configured to trigger switching mechanism 10 into triggered configuration, while switching mechanism 10 was in armed configuration, when said trigger 6, 7 or 8 is energized by the electrical fault of the predetermined type for this trigger 6, 7 or 8. This leads to a setting in isolation position of the movable contacts 33 and 43 by the switching mechanism 10, when the electrical fault occurs, to end the electrical fault.
  • each trigger 6, 7 and 8 is designed to trigger, directly or indirectly, a tilting of the latch 115 from the locking configuration to the unlocking configuration.
  • the unlocking configuration of latch 115 allows rotation of latch 116 around latch axis X116, latch 116 no longer being retained by hook 117, then in unhooking orientation.
  • the position of the control 5 is no longer subject to the position of the stirrup 101.
  • the connecting rod 54 no longer operates a mutual maintenance in position of the stirrup 101 and the switching control 5. Then, the control 5 is returned to the open position under the action of the control spring 53 and the stirrup 101 is returned to the triggered position under the action of the spring.
  • stirrup 109 stirrup 101 then driving moving contacts 33 and 43 towards the isolated position.
  • the stirrup 101 can be moved between the armed position and the triggered position, whether the control 5 is in the closed position or in the open position, since a movement of the end 56 with respect to the stirrup 101 is authorized by the latch 115 along the groove 112.
  • the latch 115 authorizes the switching mechanism 10 to switch from the armed configuration to the triggered configuration, that is to say to the stirrup 101 to pass from the armed position to the triggered position, even if the control is in the closed position.
  • This displacement of the stirrup 101 is carried out automatically under the action of the stirrup spring 109, applying the triggering force on the stirrup 101.
  • Device 1 is configured so that, when yoke 101 has reached the triggered position and, preferably, control 5 is in the open position, connecting rod 54 has returned lock 116 to capture orientation. Under the action of the spring 119, the hook 117 is then returned to the holding position to again hold the lock 116 in the capture orientation. The latch 115 is then again in the locking configuration, and the control 5 is then again subject to the mechanism 10. If the trigger 8 was at the origin of the setting in the unlocking configuration of the latch 115, the configuration shown on the figure 9 is then reached.
  • the switching mechanism 10 in particular the control spring 53, to return the switching control 5 to the open position when the switching mechanism 10 is placed in the triggered configuration, whether by action of the user on the switching control 5 itself, or under the action of a release operated by one of the releases 6, 7 or 8, releasing the movement of the stirrup 101 vis-à-vis the movement of the control 5.
  • This situation is shown on the figure 9 , for the case where the trigger 8 was at the origin of the unlocking configuration of the latch 115.
  • the magnetic trigger 6 actuates for example a rocker 121 belonging to the switching mechanism 10, the rocker 121 driving the hook 117 to the unhooking position, as shown in the figure 7 .
  • rocker 121 is attached to casing 2, for example to internal partition 27, being pivotable with respect to casing 2 around a rocker axis X121 parallel to caliper axis X101, between an initial position shown on the figure 3 and 5 , and a rocking position shown on the figure 7 .
  • the trigger 6 is configured to put the latch 115 in the unlocked position to switch the mechanism 10 to the triggered configuration when the trigger 6 is energized by an electrical fault of the short-circuit type.
  • the magnetic trigger 6 drives the rocker 121 from the initial position to the tilting position under the effect of the movement of the movable core 62 to the triggered position.
  • the movable core 62 bears against a first end of the rocker 121, here in a direction opposite to the direction Z1.
  • the rocker 121 has a second end, which bears against a leg belonging to the hook 117, in the direction Z1, so that the hook 117 pivots to the unhooking orientation under the action of the pivoting of the rocker 121 up to the tilting position, against the force of the latch spring 119.
  • the movable core 62 returns to its initial position, and allows the rocker 121 to be returned to the initial position, the rocker 121 thus allowing the hook 117 to be returned to the holding orientation.
  • hook 117 returns rocker 121 to the initial position, while hook 117 is itself returned to the holding orientation by latch spring 119.
  • the core 62 also directly drives the moving contact. 33 to the isolation position, through the contact carrier 36.
  • the movable contact 33 is moved directly into the isolation position against the effort produced by the spring 108, without waiting for the pivoting of the bracket 101.
  • the bracket 101 then tilting rapidly to the triggered position, the contacts 33 and 43 are finally both maintained in the isolated position.
  • the trip device 7 is configured to put the latch 115 in the unlocked position to switch the mechanism 10 to the tripped configuration when the trip device 7 is energized by an electrical fault of the overload type.
  • the link 122 comprises a first end, attached to the bimetallic strip forming the trigger 7 and guided in translation in a rail provided in the internal partition 27, and a second end fixed to the rocker 121.
  • the bimetallic strip drives rocker 121 via link 122 and being guided by the rail formed in internal partition 27 in a direction opposite to direction Z1.
  • the differential release 8 actuates a mechanical force amplifier, as shown in particular on the figure 8 .
  • the mechanical force amplifier entirely separate from the mechanism 10, and essentially comprises a drawer 130, a lock 131, a drawer spring 132, but also preferably a lock spring 133 and a resetting lever 134.
  • the mechanical force amplifier is entirely contained in compartment 29.
  • the drawer 130 is movable, relative to the housing 2, between an initial position, shown on the figure 4 , and an actuation position, shown in the figure 8 .
  • the drawer 130 slides relative to the housing 2 along an axis R130, which fixes relative to the housing 2 and which is called "drawer axis".
  • the axis R130 is preferably included in a plane parallel to the directions Y1 and Z1.
  • the R130 axis is oblique with respect to the directions Y1 and Z1.
  • the drawer 130 is preferably moved in the direction of the direction Z1 to be moved towards the actuating position.
  • the drawer 130 comprises for example two oblong holes, the great length of which is parallel to the axis R130, and through which the drawer 130 slides on two respective rods belonging to the housing 2, here projecting of the partition 27, parallel to the direction X1.
  • the spool spring 132 applies a so-called “actuating force” force to the spool 130, tending to move the spool 130 from the initial position to the actuating position.
  • the drawer spring 132 advantageously bears on the housing 2.
  • the drawer spring 132 is here a compression spring oriented parallel to the axis R130, which is interposed between a wall of the housing 2 and a support portion of the drawer 130. The spring 132 then pushes the slide 130 back to its triggered position.
  • the drawer 130 drives the latch 115 from the locking configuration to the unlocking configuration.
  • the drawer 130 advantageously comprises a stopper 135 which bears along the axis R130 against a leg belonging to the hook 117 when the drawer 130 is in the actuating position, as shown on the figure 8 .
  • the hook 117 is then swung by the drawer 130 to the stall position.
  • the latch 115 thus unlocked authorizes movement of the yoke 101 to the trigger configuration, causing the movement of the contacts 33 and 43 to the isolation position.
  • the latch 131 is movable between a holding position, shown on the figure 4 and 6 , in which the lock 131 maintains the drawer 130 in the initial position if the drawer is in the initial position, and a release position, shown on the figure 8 , wherein the lock 131 allows the drawer 130 to be moved from the initial position to the actuating position.
  • the lock 131 is attached to the housing 2, in particular to the partition 27.
  • the lock 131 is preferentially pivotable with respect to the housing 2, around an axis X131 fixed with respect to the housing, here parallel to the X1 direction.
  • a part of the lock 131 along the axis X131 passes through one of the oblong holes of the drawer 130, serving to guide the drawer 130.
  • the lock spring 133 exerts a force called "force of holding” on the latch 131, tending to move the latch 131 from the release position to the holding position.
  • the drawer 130 includes a locking notch 136, which cooperates mechanically with a locking leg belonging to the lock 131, when the lock 131 is in the holding position. and when the drawer 130 is in the armed position, against the actuating force produced by the spring 132.
  • the lock 131 comes to bear against the drawer 130, in the opposite direction of its movement actuation position, here in the opposite direction to the direction Z1.
  • the locking leg of the lock 131 cooperates mechanically with the notch 136.
  • the lock 131 when the lock 131 is in the release position, and what whatever the position of the drawer 130, the lock 131 no longer has a hold on the drawer 130, the leg of the lock 131 being moved away from the notch 136. Then, the lock 131 authorizes the movement of said drawer 130, in particular under the action of the spring 132. It is advantageously provided that, when the drawer 130 is in the release position, the drawer maintains the lock 131 in the release position. When the drawer 130 moves from the actuating position to the initial position, or even beyond the initial position as shown in the figure 6 , the drawer 130 allows the lock 131 to be returned to the holding position under the action of the spring 133.
  • the drawer 130 when the drawer 130 has been placed in the actuating position, it can be returned to the initial position, and even beyond, by the contact 43, when the contact 43 is moved from the conduction position to the position of isolation.
  • the contact 43 then drives the slide 130 towards the initial position against the spring 132, when the contact 43 is moved from the conduction position to the isolation position under the action of the spring 109 transmitted to the contact 43 by the stirrup 101.
  • the contact carrier 46 bears directly against the drawer 130 along the axis R130, in the opposite direction to the direction Z1.
  • the reset handle 134 is attached to the housing 2, in particular to the partition 27, being movable between a first position, shown on the figure 4 , and a second position, shown on the figure 8 , even up to a third position, shown on the figure 6 , beyond the second position.
  • the rearming stand 134 is advantageously pivotable with respect to the housing 2 around an axis X134 parallel to the direction X1.
  • the movable rod 83 is actuated to its tripped position, here in the direction Z1, so as to drive the resetting strut from its first position to its second position.
  • the reset stand 134 drives the lock 131 from its holding position to its release position, against the action of the spring 133. More precisely, the crutch 134 drives the lock 131 via an actuating leg belonging to the lock 131.
  • the lock 131 being in the unlocked position, the drawer 130 is authorized to be moved from the initial position to the position of actuation, under the action of the spring 132. In doing so, the drawer 130 switches the latch 115 from the locking configuration to the unlocking configuration.
  • the stirrup 101 switches the contacts 33 and 43 from the conduction position to the isolation position, by itself switching from the armed position to the triggered position.
  • the contact 43 bears against the drawer 130 so as to bring the drawer 130 towards the armed position, against the action of the spring 132, or even, preferably, beyond from the armed position.
  • the drawer 130 drives the stand 134 to the first position, or even beyond the first position, to the third position.
  • the drawer 130 includes for example a stop 137, which bears against the stand 134 in the opposite direction to the direction Z1. Therefore, the movable rod 83 is returned by the stand 134 to its initial position, or even beyond the initial position, so that the trigger 8 is reset.
  • the drawer 130 When the drawer 130 is moved to the armed position, the drawer 130 allows the lock 131 to be returned to the locking position by the spring 133. In this situation, the force amplifier and the trigger 8 are returned to their original configuration, to allow new tripping if a new fault occurs. At this time, the stirrup 101 is in the tripped position, the contacts 33 and 43 are in the isolated position and the control 5 is in the open position. This situation is partially shown on the figure 9 .
  • the presence of the stand 134 is optional, and provision can be made for the rod 83 to directly actuate the lock 131. In this case, it is not it is no longer necessary for the contact to bring the drawer 130 beyond the initial position, but simply for the drawer 130 to be brought back to the initial position.
  • the aforementioned force amplifier allows the trigger 8 to bring about a setting in the triggered configuration of the mechanism 10, in particular by using the force produced by the slide spring 132, even if the actuating force of the rod 83 produced by the relay 82 is particularly weak.
  • it is by authorizing the drawer 130 to be actuated by the spring 132 that the trigger 8 triggers the tilting of the switching mechanism to the triggered configuration, the drawer 130 putting the latch 115 in the unlocking configuration when the drawer 130 reaches the actuation position, being authorized to do so by the lock 131 placed in the release position by the trigger 8.
  • This principle applies to the particular trigger 8 described here, but could apply to any other type of trigger producing a low effort.
  • each aforementioned trigger can be replaced by a trigger of another type, configured to be energized by a fault of another predetermined type, to cause a tripped configuration of the mechanism 10.
  • the figure 11 shows a detail of the device 1 at the advanced part 95 of the facade 20, where a part of the facade 20 has been omitted to reveal its contents.
  • the device 1 further comprises an indicator 14 and an indicator 15 housed in the casing 2, particularly visible on the figure 10 and 11 , but also visible on the figures 3 to 9 .
  • Each light 14 and 15 is a mechanical light, that is to say a moving part as illustrated, or a set of moving parts.
  • the respective position of each LED 14 and 15 with respect to housing 2 aims to visually inform the user about the current configuration of device 1, in particular without the need to open housing 2.
  • the indicator 14 is advantageously arranged along the facade 20, here along the advanced part 95.
  • the indicator 14 is movable, relative to the housing 2, between a secondary signaling position, shown on the figures 3 to 8 and 10 , and a primary reporting position, shown on the figure 9 and 11 .
  • the indicator 14 is advantageously guided in sliding by the housing 2, along an axis Z14, called the “indicator axis”, which is here parallel to the direction Z1.
  • the axis Z14 to be orthoradial with respect to the axis X101, that is to say perpendicular to a ray originating from the axis X101 while being distant from the axis X101.
  • the casing 2 prefferably comprises guide rails 141 and 142, advantageously formed in the thickness of the advanced part 95, close to the facade 20, to guide the sliding of the indicator 14.
  • the rails 141 and 142 are parallel to the axis Z14, and arranged on either side of the indicator 14, preferably opposite one another, being for example distributed parallel to the direction X1.
  • the indicator 14 advantageously carries an indicator 143.
  • the indicator 143 is in the direction Z1 with respect to the primary signaling position.
  • the facade 20 carries a window 144, shown in the figure 2 , and shown in broken lines on the figure 11 .
  • the window is provided through the facade 20 at the level of the part 95.
  • the window 144 is arranged in the direction Z1 with respect to the control 5, so as to be more easily visible when the control 5 is in the open position, with the crank pin 52 directed in the opposite direction to the direction Z1, that is to say away from the window 144.
  • the window 144 is glazed, the user being able to observe through the glass by transparency thereof.
  • the indicator 143 When the indicator 14 is in the primary signaling position, the indicator 143 is offset with respect to the window 144, so as not to be visible, or to be only partially visible, through the window 144. This is the case on the figure 2 .
  • the indicator 143 When the indicator 14 is in the primary signaling position, the indicator 143 is aligned so as to be visible through the window 144 as shown in the figure 11 , or at least to be more visible than in the secondary reporting position.
  • the user is informed about the current position of the indicator 14, and therefore of the current configuration of the device 1.
  • the position of the indicator 143 with respect to the window 144 is different when the light 14 is in the primary signaling position and in the secondary signaling position, so that the user can identify the current position of the light 14 through the window 144. More generally, provision is made for the LED 14 is visible from outside of housing 2, here through window 144, for at least one signaling position of LED 14, among the primary signaling position and the secondary signaling position.
  • the device 1 comprises two notches 145, formed by the housing 2 and two notches 146, each notch 146 being formed by the indicator 14.
  • the notches 145 are each formed within one of the rails 141 and 142.
  • One of the notches 145 formed by the rail 142 is visible on the figure 11 .
  • each notch 146 is formed at the end of a respective elastic tab, belonging to the indicator 14, both visible on the figure 11 .
  • the notches 146 and the elastic lugs are formed on either side of the indicator, being distributed parallel to the direction X1.
  • Detents 145 and 146 are configured to impede the movement of the indicator light 14 from the secondary signaling position to the primary signaling position and to prevent the movement of the indicator light 14 from the primary signaling position to the secondary signaling position.
  • each notch 145 comes into abutment respectively with one of the corresponding notches 146 when the indicator 14 is moved from one signaling position to another, reaching the opposite signaling position being obtained only with a crossing of each notch 146 by the notch 145, here implying an elastic deformation of the elastic tabs of the indicator 14.
  • LED 14 is in the primary signaling position, as shown on the figure 9 and 11 , to indicate to the user that the contacts 33 and 43 have been put in position isolation by one of the trip units 6, 7 or 8.
  • the LED 14 is in the secondary signaling position, as shown on the figures 3 to 8 and 10 , when the contacts 33 and 43 are in the conduction position and when the contacts 33 and 43 are in the isolated position, having been placed in the isolated position by placing the control 5 in the open position, and while 'no triggers 6, 7 and 8 were fired.
  • the light 14 indicates to the user that no electrical fault has occurred.
  • the control 5 is moved from the open position to the closed position by the user, the light 14 is placed or maintained in the secondary signaling position. Given this operation, the indicator 14 is therefore a so-called “any fault” indicator.
  • the latch 115 is configured to put the indicator 14 in the primary signaling position, when the latch 115 is put in the unlocking position, while the mechanism 10 is put in the triggered configuration, in particular that the stirrup 101 is placed in the triggered position.
  • the switching mechanism 10 is configured to put the indicator 14 in the secondary signaling position, when the switching mechanism 10 is put in the armed configuration, in particular when the stirrup 101 is put in the armed position, preferably regardless of the configuration of the latch 115.
  • the latch 115 is switched to the unlocking configuration, then inevitably allowing the mechanism 10 to switch to the triggered configuration. under the action of the spring 109.
  • the indicator light 14 then indicates that this event has taken place by being placed in the primary signaling position, until the switching mechanism 10 returns to the armed configuration, necessarily under the action of the command 5 moved by the user.
  • the mechanism 10 is again in the armed configuration, the device 1 is ready to trigger again in the event of the occurrence of one of the aforementioned electrical faults, which is reflected by the secondary signaling position of the indicator light 14.
  • the notches 145 and 146 are crossed each time under the action of the mechanism 10, thanks to the release force provided by the spring 109.
  • the stirrup 101 during its movement from the triggered position to the armed position, which moves the indicator 14 to the secondary signaling position.
  • the stirrup 101 in particular the plate 102, comprises an arm 149, via which the stirrup 101 bears against an arm 148 belonging to the indicator 14 in the direction of the direction Z1 to drive the LED 14 to the secondary signaling position.
  • the arms 148 and 149 are visible in particular on the figure 10 , but also on the figures 3 to 9 .
  • the arms 148 and 149 are advantageously bearing against each other.
  • the arms 148 and 149 are away from each other, so as to allow the light 14 to be placed in the primary signaling position.
  • the lock 116 comprises an arm 147 to drive the indicator 14 via the arm 148 belonging to the indicator 14.
  • the arm 147 is visible in particular on the figure 10 , but also on the figures 3 to 9 .
  • the stirrup 101 carrying the latch 115 , the latch 115, and in particular the lock 116, is moved as a whole by the yoke 101 when the yoke moves towards the released position.
  • the lock 116 has resumed the capture orientation to allow the latch 115 to resume the locking configuration under the action of the spring 119
  • the arms 148 and 149 are advantageously bearing against each other.
  • the arms 148 and 149 are away from each other, so as to allow the light 14 to be placed in the primary signaling position.
  • the indicator 15 is advantageously arranged along the facade 20, here along the advanced part 95.
  • the indicator 15 is movable, relative to the housing 2, between a secondary signaling position, shown on the figures 3 to 7 , 10 and 11 , and a primary reporting position, shown on the figure 8 and 9 .
  • LED 15 is advantageously attached to the housing 2 by being pivotable with respect to the housing 2, around an axis X15, called the “light axis”, which is here parallel to the direction X1.
  • the indicator 15 advantageously carries an indicator 153.
  • the indicator 153 is in the direction Z1 with respect to the primary signaling position.
  • the indicators 143 and 153 are aligned parallel to the direction X1, being arranged side by side, the indicator 143 being for example in the direction X1 with respect to the witness 153.
  • the facade 20 carries a window 154, shown on the figure 2 , and shown in broken lines on the figure 11 .
  • the window 154 is provided through the facade 20 at the level of the part 95.
  • the window 154 is arranged in the direction Z1 with respect to the control 5, so as to be more easily visible when the control 5 is in the open position, with the crank pin 52 directed in the opposite direction to the direction Z1, that is to say away from the window 154.
  • the window 154 is glazed, the user being able to observe through the glass by transparency thereof.
  • windows 144 and 154 are arranged side by side in an aligned manner parallel to the X1 direction, with, for example, window 144 in the X1 direction relative to window 154.
  • the indicator 153 When the indicator 15 is in the secondary signaling position, the indicator 153 is offset with respect to the window 154, so as not to be visible, or to be only partially visible, through the window 154. This is the case on the figure 2 .
  • the indicator 153 When the indicator 15 is in the primary signaling position, the indicator 153 is aligned so as to be visible through the window 154, or at least to be more visible than in the primary signaling position.
  • the user is informed of the current position of the indicator 15, and therefore of the current configuration of the device 1.
  • the position of the indicator 153 with respect to the window 154 is different when the indicator 15 is in the primary signaling position and in the secondary signaling position, so that the user can identify the current position of the indicator 15 through the window 154. More generally, provision is made for the LED 15 is visible from outside of housing 2, here through window 154, for at least one signaling position of LED 15, among the primary signaling position and the secondary signaling position.
  • the device 1 comprises a notch 155, formed by the housing 2, and a notch 156, formed by the indicator 15, visible in particular on the figure 1 , notch 156 being better visible on the figure 10 .
  • the notch 155 is formed by the partition 27.
  • the notch 156 is formed at the end of an elastic tab belonging to the indicator 15.
  • the notches 155 and 156 are arranged radially with respect to the axis X15, so as to be able to cooperate mechanically between to prevent rotation of the indicator 15 with respect to the housing 2 around the axis X15.
  • the notches 155 and 156 are configured to prevent the movement of the indicator light 15 from the secondary signaling position to the primary signaling position and to prevent the movement of the indicator light 15 from the primary signaling position to the signaling position. secondary.
  • the notches 155 and 156 come into mutual support when the indicator 15 is moved from one signaling position to another, reaching the opposite signaling position being obtained only by crossing the notch 155 by the notch 156, here implying an elastic deformation of the elastic tab carrying the notch 156.
  • LED 15 is in the primary signaling position, as shown on the figure 8 and 9 , to indicate to the user that the contacts 33 and 43 have been placed in the isolated position by the trigger 8.
  • the indicator light 15 allows the user to distinguish the type of fault which led to the setting in position isolation of contacts 33 and 43 by device 1, here a differential fault.
  • Indicator 15 is therefore a so-called “specific fault” indicator.
  • LED 15 is in the secondary signaling position, as shown on the figures 3 to 7 , 10 and 11 , when the contacts 33 and 43 are in the conduction position and when the contacts 33 and 43 are in the isolated position, having been placed in the isolated position by placing the control 5 in the open position, whereas no triggers 6, 7 and 8 were fired.
  • the light 15 indicates to the user that no electrical fault has occurred, similarly to the light 14.
  • the control 5 is moved from the open position to the closing by the user, the light 15 is placed or maintained in the secondary signaling position.
  • the user can deduce that the contacts 33 and 43 have been placed in the isolation position by a trigger other than the trigger 8, namely either trigger 6 or trigger 7.
  • the combination of the two LEDs 14 and 15 gives the user the means to deduce very precisely the current configuration of the device 1, and in particular the type of electrical fault which may have occurred.
  • the drawer 130 is configured to place the indicator 15 in the primary signaling position, when the drawer 130 is placed in the actuating position from the initial position. It is also provided that the mechanism 10 is configured to put the indicator 15 in the secondary signaling position, when the switching mechanism 10 is put in the armed configuration, preferably whatever the position of the drawer 130.
  • the drawer 130 When the trigger 8 is energized, the drawer 130 is moved to the actuation position, so that the indicator 15 indicates that this event has taken place by being placed in the primary signaling position by the drawer 130.
  • the other triggers 6 and 7 and the command 5 not acting on the drawer the indicator 15 is moved only when it is the trigger 8 which is energized.
  • the light 15 is actuated under the action of the spring 132 via the drawer 130, so that one can provide that the trigger 8 develops only a weak force when it is excited.
  • the indicator 15 remains in the secondary signaling position, in particular despite the possible unlocking configuration of the latch 115 by the trigger 6 or the trigger 7 , and/or the configuration triggered by mechanism 10 by command 5.
  • the drawer 130 can actuate the indicator 15 from the secondary signaling position to the primary signaling position
  • the light 15 then pivots to the primary signaling position.
  • the arm 157 does not oppose the return of the drawer 130 in the opposite direction, towards the initial position, under the action of the contact 43.
  • a space is made between the arm 157 and the arm 158, parallel to the axis R130, when the drawer 130 is in the initial position and the indicator 15 is in the primary signaling position.
  • the drawer 130 then allows the light 15 to be returned to the secondary signaling position at a later time.
  • the stirrup 101 during its movement from the triggered position to the armed position, moves the indicator 15 to the secondary signaling position.
  • the arm 149 of the stirrup 101 drives an arm 159 belonging to the indicator 15, resting against the arm 159 in the direction of the direction Z1, while the indicator 15 was in the primary signaling position and the stirrup 101 is moved from the triggered position to the armed position.
  • the arm 149 advantageously hooks onto the arm 159, when the stirrup 101 is moved from the armed position to the triggered position, in order to then be able to drive the indicator 15 by bearing in the direction of the direction Z1.
  • the arm 149 comprises for example a hook, projecting in the opposite direction of the direction X1 and visible in particular on the figure 3 and 7
  • the arm 159 comprises a complementary hook, projecting in the direction of the direction X1 and visible on the figure 4 , 8 and 10 .
  • the hooks are turned towards each other parallel to the direction Z1, once the stirrup 101 has reached the triggered position, while the indicator 15 is in the primary signaling position.
  • the hooks cross each other, for example by temporary elastic flexion of the arm 159.
  • the indicator 15 reaches the secondary signaling position.
  • the hooks are unhooked from each other, the arm 149 then being offset in the direction Y1 with respect to the arm 159, because the stirrup 101 and the indicator 15 are moved in rotation around distinct axes X101 and X15.
  • the control 5 is moved from the open position to the closed position by the user, the light 15 is placed or maintained in the secondary signaling position.
  • the notches 155 and 156 are each time crossed under the action of the mechanism 10 or of the drawer 130, thanks to the force provided either by the spring 109 or by the spring 132, depending on the direction of movement of the light 15.
  • the device 1 also includes a test system, which includes a test control 99, carried by the part 95 of the facade to be actuated by a user.
  • control 5 is arranged in the Z1 direction with respect to control 99.
  • the test system further comprises a test circuit, which is configured to be selectively put into a test configuration, by pressing the test control 99.
  • the test circuit intentionally creates an electrical fault of the predetermined type for one of the triggers 8.
  • the test circuit creates a differential electrical fault. Once command 99 is released, the test circuit no longer creates an electrical fault.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Push-Button Switches (AREA)
  • Breakers (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
EP22164341.4A 2021-03-26 2022-03-25 Elektrische schutzvorrichtung Active EP4064314B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2103126A FR3121270B1 (fr) 2021-03-26 2021-03-26 Dispositif de protection électrique

Publications (3)

Publication Number Publication Date
EP4064314A1 true EP4064314A1 (de) 2022-09-28
EP4064314B1 EP4064314B1 (de) 2024-01-03
EP4064314C0 EP4064314C0 (de) 2024-01-03

Family

ID=75539665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22164341.4A Active EP4064314B1 (de) 2021-03-26 2022-03-25 Elektrische schutzvorrichtung

Country Status (4)

Country Link
EP (1) EP4064314B1 (de)
CN (1) CN115132542A (de)
AU (1) AU2022201933A1 (de)
FR (1) FR3121270B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4528781A1 (de) 2023-09-22 2025-03-26 Doepke Schaltgeräte GmbH Koppelelement, rückstelleinrichtung sowie fi/ls kombigerät mit einem koppelelement und einer rückstelleinrichtung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3145060A1 (fr) 2023-01-17 2024-07-19 Schneider Electric Industries Sas Dispositif de protection électrique et procédé de réarmement d’un tel dispositif

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231732A2 (de) * 1985-12-02 1987-08-12 Felten & Guilleaume Fabrik elektrischer Apparate Aktiengesellschaft Fehlerstrom- und Leitungsschutzschalter
WO1994022158A1 (de) * 1993-03-18 1994-09-29 Felten & Guilleaume Austria Ag Schutzschalter
EP2975628B1 (de) 2014-07-17 2020-05-13 Schneider Electric Industries SAS Vorrichtung zur signalisierung einer elektrischen störung in einem elektrischen schutzgerät, und gerät, das eine solche vorrichtung umfasst

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231732A2 (de) * 1985-12-02 1987-08-12 Felten & Guilleaume Fabrik elektrischer Apparate Aktiengesellschaft Fehlerstrom- und Leitungsschutzschalter
WO1994022158A1 (de) * 1993-03-18 1994-09-29 Felten & Guilleaume Austria Ag Schutzschalter
EP2975628B1 (de) 2014-07-17 2020-05-13 Schneider Electric Industries SAS Vorrichtung zur signalisierung einer elektrischen störung in einem elektrischen schutzgerät, und gerät, das eine solche vorrichtung umfasst

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4528781A1 (de) 2023-09-22 2025-03-26 Doepke Schaltgeräte GmbH Koppelelement, rückstelleinrichtung sowie fi/ls kombigerät mit einem koppelelement und einer rückstelleinrichtung

Also Published As

Publication number Publication date
EP4064314B1 (de) 2024-01-03
EP4064314C0 (de) 2024-01-03
FR3121270A1 (fr) 2022-09-30
CN115132542A (zh) 2022-09-30
FR3121270B1 (fr) 2024-02-02
AU2022201933A1 (en) 2022-10-13

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