EP3041021B1 - Appareil modulaire à sécurite renforcée et ensemble électrique auto-protégé comprenant un tel appareil modulaire assemblé à un disjoncteur - Google Patents

Appareil modulaire à sécurite renforcée et ensemble électrique auto-protégé comprenant un tel appareil modulaire assemblé à un disjoncteur Download PDF

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Publication number
EP3041021B1
EP3041021B1 EP15307059.4A EP15307059A EP3041021B1 EP 3041021 B1 EP3041021 B1 EP 3041021B1 EP 15307059 A EP15307059 A EP 15307059A EP 3041021 B1 EP3041021 B1 EP 3041021B1
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EP
European Patent Office
Prior art keywords
circuit breaker
casing
modular
housing
figures
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15307059.4A
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German (de)
English (en)
French (fr)
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EP3041021A1 (fr
Inventor
Gaétan Rasse
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.)
Legrand SNC
Legrand France SA
Original Assignee
Legrand SNC
Legrand France SA
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.)
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Publication date
Application filed by Legrand SNC, Legrand France SA filed Critical Legrand SNC
Priority to PL15307059T priority Critical patent/PL3041021T3/pl
Priority to SI201530120T priority patent/SI3041021T1/sl
Publication of EP3041021A1 publication Critical patent/EP3041021A1/fr
Application granted granted Critical
Publication of EP3041021B1 publication Critical patent/EP3041021B1/fr
Active legal-status Critical Current
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    • 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
    • H01H71/1009—Interconnected mechanisms
    • H01H71/1027—Interconnected mechanisms comprising a bidirectional connecting member actuated by the opening movement of one pole to trip a neighbour pole
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
    • H01H71/0271—Mounting several complete assembled circuit breakers together
    • H01H2071/0278—Mounting several complete assembled circuit breakers together with at least one of juxtaposed casings dedicated to an auxiliary device, e.g. for undervoltage or shunt trip

Definitions

  • the present invention generally relates to the field of modular appliances for use in electrical distribution boards.
  • a modular apparatus comprising a housing provided with a lateral main face of attachment to another modular apparatus, the housing housing state transfer elements, a pin connected to one of these state transfer elements , which passes through an opening of said lateral main face to exit outside the housing, said pin being adapted to be moved in said opening between a lowered position and a raised position, and a latch for locking the stowage of a modular device to another.
  • the modular device in question here is advantageously an auxiliary device, such as an adaptable differential block, a fault signal block, or an adaptable surge arrester block.
  • It also relates to a self-protected electrical assembly comprising a transient overvoltage protection device and a circuit breaker assembled with one another by one of their main lateral faces.
  • the pin of this type of auxiliary modular devices already known is permanently positioned projecting from the main lateral face by which said apparatus is intended to be attached to the master apparatus, in general, a circuit breaker.
  • this pin establishes the mechanical connection between the circuit breaker opening and closing lever and the status transfer elements of the auxiliary modular device so that the latter is able to indicate to the user the state of the device. opening or closing of the circuit breaker.
  • this pawn is frequently referred to as an auxiliary pawn.
  • the tie-down of the circuit breaker to the auxiliary modular apparatus is generally achieved by means of locks provided on the auxiliary modular apparatus, capable of hooking the circuit-breaker box to securely hook it to the housing of the auxiliary apparatus.
  • the present invention then proposes a modular device that overcomes this lack of security.
  • a modular apparatus as defined in the introduction, characterized in that there is provided inside the housing a control portion operable in translation by the lock and having a driving surface which when opening said latch, is adapted to act directly or indirectly on said pin placed in the raised position to force it to move in said opening to its lowered position.
  • the opening the latch of said modular device automatically triggers the circuit breaker. The user can then disassemble said modular device safely.
  • the invention also relates to a temporary overvoltage protection device, comprising a modular block provided with a receiving housing accommodating at least one plug-in / withdrawable surge arrester cassette containing an overvoltage limiting device and a fusible link which establishes the electrical connection.
  • the modular block comprises a housing which houses a modular interface according to the invention, each actuator associated with a surge arrester cassette being, on the one hand, connected to said casing by an elastic return means which tends to position said actuator in a release position where it places said lever in a triggering position corresponding to the triggered position of the arm of said second mechanical security element, and, secondly, held by an element of the lightning arrestor cassette connected to the fusible link, in a connection position in which said elastic means of recall is under duress.
  • the invention finally relates to a self-protected transient overvoltages electrical assembly comprising a device for protection against temporary overvoltages, in particular of atmospheric origin, and a circuit breaker mechanically and electrically connected to each other by a modular interface.
  • a self-protected transient overvoltages electrical assembly comprising a device for protection against temporary overvoltages, in particular of atmospheric origin, and a circuit breaker mechanically and electrically connected to each other by a modular interface.
  • whose housing comprises a lateral main face of junction with the circuit breaker through which said pin which links said first mechanical safety element to the opening and closing device of said circuit breaker, the lowered position of said pin corresponding to the state tripped from the circuit breaker while the raised position of said pin corresponds to the activated state of the circuit breaker.
  • an electrical assembly 1 comprising a protection device 300 against temporary overvoltages, in particular of atmospheric origin, and a circuit breaker 200.
  • the protective device 300 is electrically and mechanically connected to the circuit breaker 200 by a modular interface 100.
  • the circuit breaker 200 is in itself quite conventional and it will not be described here in detail.
  • the circuit breaker 200 comprises a housing housing electrical input and output terminals connected by an electrical circuit that can be opened by an opening and closing device 230.
  • the casing of the circuit breaker 200 is generally parallelepipedal with two parallel main lateral faces 211, a rear face provided with a horizontal groove 202 for its mounting on a rail (not shown) of a box or electrical cabinet, a front face and two opposite upper and lower transverse faces.
  • the rear, front, top and bottom faces are all perpendicular to the main lateral faces of the housing.
  • the casing of the circuit breaker 200 has on its rear face latches 201 which make it possible to lock the circuit breaker 200 on the rail of the box or of the electrical cabinet. More particularly, here the circuit breaker 200 housing is equipped with four locks 201, two at the top (see FIG. figure 2 ) and two at the bottom (see figures 36 , 38 , 42 and 44 ) of the housing. Each latch 201 is in the form of a plate which slides in a corresponding vertical rail (not visible) of the housing, between a locking position and an unlocking position. There is provided elastic return means (not visible in the figures), generally coming from formation with each latch, which tend to recall each latch in the locking position.
  • each latch 201 emerges in the groove 202 of the rear face of the housing, to engage the rail of the cabinet or electrical cabinet, in the latch lock position.
  • the other opposite end of each latch 201 emerges above the top face or below the bottom face of the breaker case 200.
  • This opposite end of each latch 201 is provided with an aperture 201A that allows each slot to be pulled out. latch 201 outwardly of the groove 202 from its locking position to its unlocking position against said resilient biasing means so as to release the latch 201 from its socket with the corresponding mounting rail.
  • the front face of the casing of the circuit breaker 200 has, in its central zone, a portion of the facade through which said casing is intended to emerge. out of a plastron (not shown), through a window of this plastron, when it is in place on the rail, for example in an electrical cabinet.
  • the facade portion has a front face and two opposite transverse faces that extend at right angles to the front face of the circuit breaker housing. Levers attached to a handle 230 common maneuver protrude from the front face of the facade portion. These levers belong to the opening and closing device of the circuit breaker 200, they can be actuated by the handle 230 to manually open or close the electrical circuit connecting the input and output terminals of the circuit breaker 200 (see FIG. figure 3 ).
  • the circuit breaker 200 is a modular device in the sense that its housing has a width, measured between its two main lateral faces 211, equal to an integer multiple of a base module M.
  • the circuit breaker 200 is a three-phase circuit breaker (that is to say comprising three phase terminals L1, L2, L3 and a neutral terminal N) whose case is quad-module (whose width is equal to 4 times the base module M ), a module per pole of the circuit breaker 200.
  • a pole opening / closing lever of the circuit breaker 200 so four levers attached to the handle 230.
  • the upper face of the circuit breaker box 200 comprises access openings to the input terminals of the circuit breaker 200 and the lower face of the circuit-breaker box comprises access openings to the output terminals of the circuit breaker 200.
  • the L1, L2, L3 and neutral N phase electrical wires (not shown) from the electrical network are connected, via said access openings on the upper face of the housing, to the input terminals of the circuit breaker 200 while the electrical wires F1, F2, F3, FN from the protection device 300 are connected, via said access openings of the lower face of the housing, to the output terminals of the circuit breaker 200.
  • the front face of the housing of the circuit breaker 200 has openings giving access to the screws of the input and output terminals of the circuit breaker 200.
  • the transient overvoltage protection device 300 comprises a modular block 310 with two parallel main faces 311D, 313, a rear face provided with a horizontal groove 311G for mounting on a rail (not shown) of a cabinet or an electrical cabinet, a front face 312A and two transverse faces opposite upper 311 B, 312B and lower 311 B, 312B.
  • the rear, front, top and bottom faces are all perpendicular to the main lateral faces of the modular block.
  • the width of the modular block 310, taken between its two main lateral faces 311 D, 313, is here also equal to four times the width of a basic module M.
  • the front face 312A of the modular block 310 of the protective device 300 has in projecting, in its median zone, a front portion 312'A by which said modular block 310 is intended to emerge from a plastron (not shown), through a window of this plastron, when it is in place on the rail, for example in an electrical cabinet.
  • the front portion 312'A comprises a front face and two opposite transverse faces which extend at right angles to the front face 312A of the modular block 310 of the protection apparatus 300.
  • the modular block is a housing which houses at least one varistor 333 associated with a thermal disconnection means 335, 700, a spark gap E as well as electrical wires F1, F2, F3, FN respectively connected to each varistor 333 and to the spark gap E, a portion of said electrical wires emerging outside the housing to be connected to the output terminals L1, L2, L3, N of the circuit breaker 200.
  • the modular block 310 houses three varistors 333 connected, at the output, to the phase terminals L1, L2, L3 of the circuit breaker 200, and, as input, to the neutral terminal N of the circuit breaker 200 which is otherwise also connected to the spark gap E itself grounded.
  • the modular block 310 here comprises a housing rear portion 311 snapped together with a front portion of the housing 312 (see FIG. figure 17 ).
  • the rear housing portion 311 of the modular block 310 shown in isolation on the Figures 19 to 22 has a bottom 311 A forming the rear wall of the modular block 310 whose outer face forms the rear face provided with the groove 311 G.
  • the bottom 311A is bordered by four walls 311B, 311D perpendicular to the bottom 311A, namely an upper wall 311 B and a lower wall 311B parallel to each other and two opposite side walls 311D, parallel to each other and perpendicular to the upper and lower walls 311 B.
  • the upper and lower walls 311 B of this rear housing portion 311 are provided close to their free edge ratchet teeth 311 E and an interlocking groove 311 E adapted to cooperate with complementary arrangements 312E of the part front of housing 312.
  • the front housing portion 312 of the modular block 310 shown in isolation on the figure 18 has a front wall 312A forming the front wall of the modular block 310 whose outer face forms the front face 312 of the modular block 310.
  • This front wall 312A also forms the front portion 312'A and it delimits, in the central zone of the modular block 310, a housing 320 in recess of the front face of said block.
  • This housing 320 is intended to accommodate three cassettes 330 surge arresters (see figure 4 ). It is delimited by opposite lower walls 315 and 314 opposite, a side wall which closes one side of the front portion 312'A and a bottom wall 312C which closes said housing 320 at the rear.
  • the bottom walls 315 and above 314 of the housing 320 comprise grooves 315A, 314A for mounting said arrester cassettes 330 which are plug-in / withdrawable into the modular block 310.
  • These lower walls 315 and upper 314 also include openings 315C through which the pins 801 and 802 engage. said arresters cassettes 330 to realize the electrical and mechanical connection thereof in the modular block 310 (see figures 30 and 33 ).
  • the bottom wall 312C of the housing 320 has openings 312D (see FIG. Figures 17 and 18 ) whose contour is adapted to allow insertion in these openings 312D of polarizing pads 337 provided on the back of the lightning arrester cassettes 330 (see FIG.
  • the housing front portion 312 has upper and lower walls 312B which extend rearward perpendicularly to the front wall 312A.
  • the upper and lower walls 312B of this housing front portion 312 are provided near their free edge with snap edges 312E and an interlocking groove 312E adapted to cooperate with the detent teeth 311E and the interlocking groove 311 E of the upper and lower walls 311B of the casing front portion 312 for assembling said front and rear housing parts 312, 311 of the modular block 310 (see figures 4 and 18 ).
  • each surge arrester cassette 330 comprises a housing 331 which houses a varistor 333 (overvoltage limiting device) and a thermal disconnection device 335, 700.
  • each lightning cassette 330 has two parallel main lateral faces, a rear face, a front face and two opposite transverse upper and lower faces.
  • the front face has in its central zone a projecting front portion which carries an operating lever 332.
  • the front portion comprises a front face and two opposite transverse faces, one upper and the other lower, which extend at right angles to the front face of the housing 331.
  • the operating lever 332 has two branches which extend from a median zone of the facade portion, along both sides of the front face of the facade portion.
  • the operating lever 332 also comprises a gripping portion which extends perpendicular to the two branches, against the upper transverse face of the front portion of the housing 331.
  • the operating lever 332 is incorporated here in the profile of the front face and the upper transverse face of the front portion of the housing 331 of the lightning arrester cassette 330.
  • the front portion carrying the operating lever 332 of each lightning arrester 330 aligns with the front portion 312'A of the front panel 312 of the modular block 310 so that these aligned front portions are intended to emerge out of a plastron (not shown), through a window of this plastron, when modular block 310 is in place on the rail in a box or an electrical cabinet.
  • each lightning arrester cassette 330 is in the form of a block composed of metal oxides such as zinc oxides.
  • This block comprises 333D mounting and wedging tabs in interior arrangements 331 D of the casing 331 of the cassette.
  • Block 333 also includes tabs 333A, 333B of current-conducting material for connecting the varistor to the electrical network.
  • One of these conductive tabs 333A is in contact with a conductive plate 800 which leaves the bottom wall 331C of the casing 331 of the cassette to form the pin 801 which establishes the electrical connection with one of the phase electric wires F1, F2 , F3 of the modular block 310.
  • Each varistor 333 has an extremely non-linear voltage / current characteristic. Beyond a certain threshold voltage across the varistor 333, the impedance of the varistor 333 drops to allow the evacuation of the current creating the overvoltage. When the voltage returns to an acceptable normal level, the impedance of the varistor 333 returns to its idle state. For large deviated current amplitudes, the voltage across the varistor increases. The life of the varistor 333 is limited, depending on the stresses, the properties of the ceramic blocks are degraded, the leakage current of the varistor in the standby state increases, and the thermal resistance of the varistor decreases.
  • a thermal disconnection device 335, 700 is provided in each lightning arrester cassette 330 which, in the event of exceeding the thermal capacity of the varistor 333, disconnects the varistor 333 from the electrical network to which it is connected. protective apparatus 300 to prevent damage related to this thermal overflow.
  • each thermal disconnection device comprises a fuse link 335 (in the form of an angle plate of fuse material) which maintains an insulating slider 700 in a connection position (see FIG. figures 30 and 31 ) against a tension spring (not visible in the figures).
  • the slide 700 is slidably mounted on a slide 336 and the tension spring is stretched between the slider 700 and a fixed part of the casing 331 of the arrester cassette 330 so that it tends to slide the slider 700 from its connection position.
  • a disconnect position in which an insulating wall 710 of the slider 700 is interposed between the conductive tabs 333A of the associated varistor 333 and the conductive strip 800 for connection to the live electrical wire, so as to open the electrical circuit and disconnect the varistor 333 of the electrical circuit to which it is connected.
  • the fuse link 335 is placed in contact with a conductive tab 333C issuing from the varistor 333 so that when the varistor 333 ages and exceeds its thermal capacity, the heat transmitted by conduction by the conducting tongue 333C to the fuse link 335 causes its melting and release of the slider 700 which is pulled by the tension spring to its disconnected position.
  • the modular block 310 of the protection device 300 and the circuit breaker 200 are placed side by side and assembled by one of their lateral main faces.
  • the modular block 310 houses two hooks 340 which emerge out of the modular block 310 through the upper and lower parts of the main lateral face 313 concerned ( figures 4 and 5 ), and is provided in corresponding windows (visible for example on figures 46 and 49 ) in the relevant lateral main face of the circuit breaker 200.
  • the hooks 340 are actuated by locks 341 upper and lower which allow to lock the hooks 340 attached to the circuit breaker 200.
  • Each latch 341 comprises a stroller 341A mounted in translation inside the modular block 310 through an opening 312'B provided in the front portion of the housing 312.
  • the hooks 340 are here connected to a side of the strollers. zippers 341A.
  • Each hook 340 and each 341A stroller-zipper associated are derived from the same integrally molded piece rigid plastic material.
  • an opening 312'B for mounting the stroller-zipper of the upper latch 341 there is provided in the front portion of the housing 312, on the one hand, at the junction of the upper walls 312B and before 312A, an opening 312'B for mounting the stroller-zipper of the upper latch 341, and, of on the other hand, at the junction of the lower walls 312B and before 312A, an opening 312'B for mounting the stroller-pull 341A of the lower latch 341 (see figure 48 for example).
  • Each pull-stroller 341A is adapted to be moved in translation from outside the modular block 310 between an unlocked position in which part of said stroller 341A emerges outside the modular block 310 (see FIG. figure 48 ) and a locked position in which said stroller 341A is fully engaged within the modular block 310 (see figures 51 and 59 ).
  • the unlocked position of the pushchair 341A corresponds to a rest position of said hook 340 (actuated by the stroller-zipper) in which it is placed inside the modular block 310, set back from the main lateral face 313 by which the modular block 310 is attached to the circuit breaker housing.
  • the locked position of the pull-stroller 341A corresponds to a hooking position of said hook 340 in which it emerges from the modular block 310 projecting from said lateral main face 313 of the modular block 310 to catch in the corresponding window of the circuit breaker box.
  • each pull-stroller 341A is movable in an oblique direction Z (see figures 48 , 51 and 54 ) relative to the lateral main face 313 of the modular block 310 by which the protection device 300 is attached to the circuit breaker 200.
  • the stroller-zipper 341A of the lower latch 341 is movable in a direction parallel to the main lateral face 313 of the modular block through which the protective device is attached to the circuit breaker (see for example the figures 59 and 63 ) while the upper latch stroller is movable in a direction oblique with respect to the lateral main face of the modular block by which the protective device is attached to the circuit breaker.
  • each push-pull 341A projecting a rib 341 B extending in said direction of movement (oblique or straight) slidably engaged in an oblique or straight groove (not visible in the figures) provided in an inner face of the front wall 312A of the modular block 310.
  • each stroller 341A To move each stroller 341A from its unlocked position to its locked position, it is sufficient to push the portion of the stroller 341A emerging outside the modular block 310 to slide the rib 341 B stroller- zipper 341A in the corresponding groove of the modular block until the stroller 341A is completely engaged inside the latter.
  • each 341A pull-stroller To move each 341A pull-stroller from its position locked in its unlocked position, just enter the tip of a tool in the slot provided for this purpose at the end of said stroller 341A and draw on it to the outside of the modular block 310 to make slide the rib 341 B of the stroller 341A in the corresponding groove of the modular block over the determined cooperation length to extract the hook of the window of the circuit breaker and enter it inside the modular block.
  • the protection device 300 comprises, outside the modular block 310, a wire-cover 400 of electrically insulating material which encloses the electric wires F1, F2, F3, FN which exit outside the modular block 310 passing, at the bottom, the main side face 311B, 313 of the modular block 310 by which said modular block 310 is assembled to the circuit breaker 200, to electrically connect to the output terminals of the circuit breaker 200.
  • This wire cover 400 comprises a base 410 closed by a cover 420 (see figures 6 and 9 ). It is attached to the underside of the circuit breaker 200 so that the external face of its cap 420 is pressed against the underside of the circuit breaker 200 and the external face of its base 410 extends in the extension of the lower face of the modular block. 310 of the protection device 300.
  • the electrical assembly 1 consisting of the circuit breaker 200 and the protection device 300 provided with the wire-cap envelope 400 forms a unitary block that is generally rectangular parallelepipedal (see FIG. Figures 1 and 2 ).
  • the base 410 is disjoint from the modular block 310 of the protection device 300 (as shown more particularly by the figure 5 there is a gap E between the base 410 and the modular block 310) and it is provided, on the one hand, holding means 412A, 412B, 412C, 412D, 414A, 414B, 414C, 414D cooperating with said electrical wires F1, F2, F3, FN for maintaining each electric wire F1, F2, F3, FN in a determined position, and, on the other hand, mounting means 415, 415A, 417, 417A, 418, 418A for fixing said base 410 at circuit breaker 200 (see figures 6 , 7 , 9, 10 , 13, 14 ).
  • Said holding means 412A, 412B, 412C, 412D, 414A, 414B, 414C, 414D of the base 410 are arranged to hold the free ends E1, E2, E3, EN electric wires F1, F2, F3, FN on a line A in regularly spaced positions (see figure 4 ).
  • the base 410 thus advantageously makes it possible to reduce as far as possible the length of the electric wires F1, F2, F3, FN between the varistors 333 of the protection device 300 and the terminals L1, L2, L3, LN of the circuit breaker 200, which allows to avoid the appearance of residual surges and to comply with the provisions of the French standard NF 15/100.
  • the base 410 also ensures the maintenance of electrical son F1, F2, F3, FN in specific positions determined, allowing the use of flexible son rather than rigid, less expensive.
  • the base 410 is a molded piece made of rigid plastic material, which comprises a base plate 411, here rectangular in outline, and walls 412, 413, 414 which rise perpendicularly to the base plate 410, from the inner face 411 A thereof.
  • One of the side walls 412 (the one placed facing the main lateral face 313 of the modular block 310 of the protection apparatus 300) and the inner walls 414 comprise notches 412A, 412B, 412C, 412D, 414A, 414B, 414D with the rounded funds which house said electrical wires F1, F2, F3, FN so that they form said holding means.
  • the electric wires F1, F2, F3, FN coming out of the modular block 310 enter the base 410 through the notches 412A, 412B, 412C, 412D of the corresponding side wall 412 of the base 410 and they follow in the base 410 a path determined in particular by the notches 414A, 414B, 414D of the internal walls 414.
  • the neutral electric wire FN follows the longest path determined by the notches 414D, then in decreasing order, the electric wire F1 phase follows the determined path by the notches 414A and the electrical wire F2 phase follows the path determined by the notches 414B.
  • the F3 live electrical wire follows the most short determined by an inner wall 414C angled against which supports said electric wire F3.
  • the cap 420 is a one-piece molded piece of rigid plastic material, which is in the form of a rectangular closure plate whose dimensions correspond to the clearance close to the dimensions of the internal space delimited by the internal faces of the side walls 412 , before 412 and back 413 of base 410.
  • this closure plate 420 is positioned between the side walls 412, before 412 and rear 413 of the base 410 above the inner walls 414 of said base 410 so that it closes the outlet of the notches 412A, 412B, 412C, 412D of the walls of the base 410 to block the electric son F1, F2, F3, FN in the notches.
  • This closure plate 420 has aligned through holes 421 (see figures 4 and 15 ), here oblong, through which the free ends E1, E2, E3, EN of said electrical son F1, F2, F3, FN out of the cover son-son 400 to be connected to the output terminals of the circuit breaker 200 ( see figures 4 and 5 ).
  • the closure plate 420 also carries, on its inner face 420A turned towards the base 410, means for holding said electrical wires F1, F2, F3, FN.
  • These holding means comprise walls 424, 424A, 424B, 424D which extend from the inner face 420A of the closure plate 420 of said cover, perpendicular to it.
  • the wall 424 of the cover closes the corresponding opening of the side wall 412 of the base 410 just above the outlet of said notches 412A, 412B, 412C (see FIG. figures 8 and 14 ).
  • the other walls 424A, 424B, 424D of the cover guide and hold the electrical son F1, F2, F3, FN at the bottom of the corresponding notches of the base 410.
  • the cover 420 and the base 410 comprise latching means adapted to cooperate together for the assembly of the cover with the base.
  • These latching means comprise teeth 412E provided projecting on the inner face of the side walls and before 412 of the base 410 which cling to the edge 422A of flanges 422 provided on the edge of the closure plate 420 of the cover (see Figures 12 to 15 ).
  • the base plate 411 of the base 410 has, at the right of the teeth 412E, openings 419 (see FIG. figure 8 ) through which the tip of a tool accesses from outside the wire cover 400 to said teeth 412E snap-fastener for disassembling the base 410 and the cover 420.
  • the detent means also comprise on the cover 420 ratchet teeth 423A carried by tabs 423 provided on an edge of the closure plate 420 and on the base 410 windows 413A provided corresponding in the rear wall 413 of the base (see figures 10 and 14 ).
  • the hood 420 there is provided on the hood 420 amounts 426 which rise from the inner face 420A of the closure plate 420, perpendicularly thereto. These amounts 426 are distributed along the edge of the closure plate 420 and are oriented so that one of their edge extends to the right of the edge of the closure plate. These uprights 426 bear against the internal face of the walls of the base 410 when the cover 420 is snapped onto the base 410 to reinforce the holding in position of the cover 420 on the base 410.
  • the sheath 400 (base 410 closed by the cover 420) clings to the circuit breaker 200 via said mounting means of the base 410.
  • These mounting means of the base 410 are latching means.
  • said mounting means comprise posts 415, 417 which have at their free ends ratchet teeth 415A, 417A.
  • the amounts 415, 417 rise from the inner face 411A of the base plate 411 of the base, perpendicularly thereto.
  • a pair of internal uprights 415 is located in the internal space delimited between the side walls 412, before 412 and rear 213 of the base 410 and closed by the closure plate 420.
  • Two other pairs of external uprights 417 are located on an edge of the base 410 on the back of the rear wall 413 of the base 410, outside the internal space delimited between the side walls 412, before 412 and rear 213 of the base 410 and closed by the closing plate 420.
  • Each pair of uprights External 417 forms a fork with two parallel branches whose two outer sides carry the ratchet teeth 417A oriented in opposite directions. These forks are intended to fit in grooves provided on the rear face of the circuit breaker 200 housing and to hook on the edge of notches provided on the walls facing said grooves. The hooking and unhooking of each fork is effected by mutual reconciliation of the branches 417 which bend slightly elastically. As shown in figure 4 , the closing plate 420 forming the cover has additional holes 425 which leave passing the internal amounts 415 of the base 410 so that their free ends provided with latching teeth 415A emerge outside the wire cover 400 and can be hooked on the edge of openings corresponding to the underside of the circuit breaker box 200.
  • the base plate 411 of the base 410 is pierced with openings 419 through which the tip of a tool accesses the ratchet teeth 415A of the internal uprights 415A to disassemble the base 410 and therefore the wiring cover 400 of the circuit breaker 200.
  • each of the tongues 411 L has a free end, located on an edge of said base plate 411, integral with a pull tab 416 which extends perpendicular to said tongue 411 L on either side thereof (in the direction perpendicular to the base plate).
  • Each pull tab 416 is provided with a gripping aperture 416A located in a portion of the pull tab 416 extending on the side of the outer face of said base plate 411 and being secured to a hook 418A which extends a portion 418 of the pull tab 416 located on the side of the inner face 411A of said base plate 411.
  • Each hook 418A is intended to hook, at the rear of the circuit breaker 200, a mounting tab of the circuit breaker 200 and with the drawbars 416 of the 400, it is possible to pull on these mounting tabs of the circuit breaker to disengage the mounting rail on which the circuit breaker 200 is mounted.
  • a modular interface 100 which provides the mechanical and electrical connection in series of the circuit breaker 200 and the protective device 300 against temporary overvoltages.
  • This modular interface 100 is here an integral part of the protection device 300 in that its mechanism, which will be described below, is fully housed in the housing (modular block 310) of the protection device 300, but in an alternative embodiment not shown, it can be provided that the modular interface has its own housing interposed between the circuit breaker housing and that of the protection device.
  • This modular interface 100 comprises the hooks 340 actuated by the locks 341 (previously described) for the assembly of the modular block 310 of the protection apparatus 300 and the circuit breaker case 200.
  • the connector 120 is attached to the rear face of the rear housing portion 311 of the modular block 310 of the protection device 300, in a housing 311 F provided in recess of this rear face. In the mounted position on the modular block 310, the connector 120 is accessible from above the modular block 310 to be connected to a signaling interface (not shown) displaying the information transmitted by said connector.
  • the first and second mechanical safety elements 130, 140 are rotatably mounted respectively around two parallel shafts A1, A2 of axes X1, X2 (see FIG. figure 23 ) fixed in the housing 310 of the protection device 300.
  • each of the first and second mechanical safety elements 130, 140 is able, independently of one another, to pivot a rocker 150 causing the closing of the electric switch 110.
  • the first mechanical safety element 130 comprises a unitary piece of insulating material which forms a plate 131, one side of which supports a bearing 132 for receiving the shaft A1 of axis X1.
  • This pin 133 is a connecting pin to the opening and closing device (levers attached to the handle 230) of the circuit breaker 200.
  • the link between the pin 133 and the circuit breaker 200 is performed through an opening 313A (bean-shaped) of the main side face 313 of the modular block 310 of the protection device 300 which establishes the junction with the circuit breaker 200 (see figures 4 , 5 , 12 and 17 ).
  • the pin 133 is adapted to be moved in said opening 313A between a lowered position and a raised position so that the lowered position of said pin 133 corresponds to the tripped state of the circuit breaker 200 while the raised position of said pin 133 corresponds to the switched state of the circuit breaker 200.
  • the pin 133 is advantageously displaceable in translation through said plate 131, along an axis X perpendicular to the main side face 313 of the modular block 310 of the protection device 300 which establishes the junction with the circuit breaker 200, between a position retracted into which said pin 133 is placed inside the modular block 310 set back from said main lateral face 313 (see figure 46 ) and an extended position in which said pin 133 passes through the plate 131 and said opening 313A provided in said lateral main face 313 to extend outside said modular block 310 projecting from said lateral main face 313 (see FIG. figure 51 ).
  • the pin 133 is formed with the plate 131 or is attached fixedly thereon.
  • the plate 131 comprises an actuating finger 134 for the control of the electric switch 110 and is extended by an arm 135 which extends on the same side as the actuating finger 134 and which has at its free end a return 136 able to abut against said stop 143 of the second mechanical safety element 140 placed in the released position (see figure 28 ).
  • the second mechanical safety element 140 is a unitary piece of insulating material which comprises an arm 141 which is provided with an actuating finger 142 for the control of the electric switch 110 and which has, on the one hand, an end free 143 forming said abutment for said first mechanical safety element 130, and, on the other hand, opposite said free end 143, an end 144 mounted to rotate freely on the shaft A2 X2 axis which s' extends in the rear housing portion 311 of the modular block 310 of protection device 300, this end 144 being connected to a lever 145 threaded onto the shaft A2 and adapted to be pivoted about this shaft A2 by at least one actuator 160 whose action is released when the defaults a varistor 333 (overvoltage limiting device) of said protection device 300.
  • a varistor 333 overvoltage limiting device
  • the arm 141 of the second mechanical safety element 140 is formed with the lever 145 to form a single part L-shaped globally.
  • the lever 145 comprises a body formed by a succession of tubular portions 146 of axis X2 into which the shaft A2 is threaded.
  • the lever 145 and the arm 141 are mounted in interior arrangements 317, 318 of the rear housing portion 311 of the modular block 310 (see FIG. figures 19 and 21 ). These interior arrangements comprise tabs 317 with notches 317A with a rounded bottom in which the shaft A2 is fitted and a set of walls 318 wedging said lever 145 so that the arm 141 is placed adequately with respect to the main lateral face 311. D of the modular block 310 and the other elements (in particular the first mechanical safety element 130) of the modular interface 100.
  • the elastic return means is a wire spring 148 wound around the body 146 of said second mechanical safety element 140, one end of the wire spring 148 being attached to said body 146 and another end of the wire spring 148 being locked against a fixed portion of the modular interface, here against the inner face of the upper wall 311 B of the rear housing part 311 (see Figures 21 to 25 ).
  • each actuator 160 comprises a rear portion 165 (see figures 32 and 35 ) which is engaged in a free space 147 provided between two tubular parts of the body 146.
  • Each actuator 160 is associated with a varistor 333 of a lightning arrester cassette 330 of the protection device 300.
  • actuators 160 there are provided as many actuators 160 as varistors 333 of the protection device 300.
  • Each actuator 160 is, on the one hand, connected to the rear part of the housing 311 of the modular block 330 by an elastic return means 170 which tends to position said actuator 160 in a release position where it places said lever 145 in a release position corresponding to the triggered position of the arm 141 of said second mechanical safety element 140 and, on the other hand, held by an element 600 of the lightning arrester cassette 330 connected to the fuse link 335, in a connection position in which said elastic return means 170 is under stress.
  • each actuator 160 comprises a platen, a rear face 161 of which is recessed to fit the cylindrical outer surface of a tubular portion of the body 146 of the lever 145.
  • each actuator 160 is pivotally mounted about the shaft A2.
  • a rounded upper edge 162 of the plate of each actuator 160 bears against the lever 145 connected to the arm 141 of the second safety element 140.
  • the rear portion 165 of the actuator 160 extends from the rear face 161 of the plate between two tubular portions 146 of the body of the lever 145, towards the bottom of the rear housing portion 311 of the modular block 310.
  • This rear portion 165 comprises an orifice 166 in which is attached the end 171 of a coil spring traction 170 whose other end is attached to a stud 316 carried by the bottom 311A of the rear housing portion 311 (see Figures 21 and 22 ).
  • the front face 163 of the plate of each actuator 160 carries a stud 164 projecting.
  • This stud 164 passes through a window 331 E of the rear wall of the casing 331 of the associated arrester cassette 330 so that its free end bears against a rear face 602 of an inner element 600 of said lightning arrester cassette 300.
  • this inner element 600 is an elongate strip along the block of the varistor 333 of the lightning arrester cassette 330.
  • This bar 600 comprises a longitudinal groove 603 slidably mounted on an internal rib 331 B of the casing 331 of the lightning arrester cassette 330. the opposite of its rear face 602, the bar 600 comprises a front face 601 bearing against a face 701 of the slider 700 (of the thermal disconnection device of the lightning arrester cassette 330) maintained in the connection position by means of the fuse link 335.
  • the bar 600 bearing against the slider 700 held by the fuse link 335, maintains, via the stud 164, the plate of the actuator 160 facing downwards. in said connecting position in which the helical coil spring 170 is tensioned and the lever 145 and the arm 141 of the second mechanical safety element 140 are placed in the rest position.
  • the helical coil spring 170 then causes the upward tilting of the actuator 160 which, by pressing the rounded upper edge 162 of its plate, causes the lever 145 and the arm 141 of the second mechanical safety element 140 to pivot from the rest position (lowered) to the triggered position (raised) in which, on the one hand, the actuating finger 142 of the arm 141 actuates via the flip-flop 150 the electrical switch 110 connected to the connector 120, and on the other hand , the abutment 143 of the arm 141 of the second mechanical safety element 140 is placed on the path of the first mechanical safety element 130 taken between its triggered and armed positions.
  • the plate 131 of the first mechanical safety element 130 is raised by armed position in which its actuating finger 134 is out of contact with the bearing surface 153A of the rocker 150 and the arm 141 of the second mechanical safety element 140 is lowered into the rest position in which the actuating finger 142 of the arm 141 remains however in contact with the bearing surface 154A of the rocker 150 whose control finger 152 is in contact with the push button of the electric switch 110.
  • one of the varistors 333 of the protection device 300 exceeds its thermal capacity due to its aging, it causes the melting of the fuse link 335 of the associated lightning arrester cassette 330, which causes the actuation of a signaling means (not shown in the figures) defaults on the front face of the surge arrester cassette, and the tilting of the associated actuator 160 from its lowered connection position to its position of released release.
  • the actuator 160 drives the lever 145 and the arm 141 of the second mechanical safety element 140 which pivot about the shaft A2 from the rest position lowered to the raised triggered position in which the actuating finger 142 of the arm 141 pushes on the bearing surface 154A to tilt the rocker 150 around its shaft A3 towards the electrical switch 110 so that the control finger 152 of the rocker 150 pushes a push button of the switch Electric 110 (see figure 27 ).
  • the actuating finger 142 of the arm 141 of the second mechanical safety element 140 actuates the electrical switch 110 of the connector 120 which transmits the fault information of the protection device 300 to a processing device and display not shown.
  • the stop 143 provided at the free end of the arm 141 is raised and positioned in the path of the first mechanical safety element 130 taken between its triggered and armed positions. In doing so, as shown in figure 27 said first mechanical safety element 130 has not moved and remained in the armed position since the circuit breaker 200 has remained latched (closed electrical circuit).
  • the user isolates the electrical assembly 1 from the electrical circuit by opening said electrical circuit by triggering the circuit breaker 200 (this which classically returns to lower the lever 230 and the levers attached).
  • the lowering of the levers by the actuation of the lever 230 causes, via the pin 133, the tilting down of the first mechanical safety element 130 around the shaft A1 from its armed position to its tripped position and the finger actuation 134 of the plate 131 is pressed on the surface 153A of the flip-flop 150 to tilt it around the shaft A3 in the direction of the electric switch 110.
  • the control finger 152 of the flip-flop 150 then depresses the button push button of the electric switch 110 (see figure 28 ). In this way, the actuating finger 134 of the plate 131 of the first mechanical safety element 130 actuates the electrical switch 110 of the connector 120 which transmits the opening or tripping information of the circuit breaker 200 to a not shown processing and display device.
  • the second mechanical safety element 140 placed in the tripped position prevents the closing or re-engagement of the circuit breaker 200 because the free end 143 of the arm 141 of the second mechanical safety element 140 is positioned opposite the return 136 of the arm 135 of the first mechanical safety element 130. If the user then tries to raise the handle 230 of the circuit breaker 200 to close the electrical circuit, the return 136 of the first mechanical safety element 130 rotated around its shaft A1 by the levers via the pion 133, from its triggered position to its armed position, abuts against said free end 143 of the arm 141 (forming a stop).
  • the user replaces the defective arrester cassette 330 in the protection device 300.
  • the bar 600 of the new arrester cassette 330 lowers, via the pin 164, the corresponding actuator 160 in the position of connecting the tensile coil spring 170.
  • the actuator 160 returned to the link position releases the lever 145 and the arm 141 of the second mechanical safety element 140 which, under the action of the wire spring 148, tilts from its tripped position towards its rest position where it deviates from the rocker 150 and the first mechanical safety element 130 (see figure 29 ).
  • the second mechanical safety element 140 is spaced from the path traveled by the first mechanical safety element 130 between its triggered position and its armed position.
  • the user can then reset the levers of the circuit breaker 200 by actuating the handle 230 to close the electrical circuit since the first mechanical safety element 130 can freely pivot or tilt around the shaft A1 from its triggered position to its armed position by being driven by the levers of the circuit breaker 200 via the link pin 133.
  • the flip-flop 150 which is no longer pushed towards the electric switch 110, neither by the first nor by the second element safety mechanism, releasing the pressure on the push button of the electric switch 110. Conventionally, this push button then returns to its original stable position under the action of an elastic return means and pushes the rocker 150 which pivots around the shaft A3 to its original position shown on the figure 26 .
  • the movement and action of the second mechanical safety element 140 are distinct and independent of the movement and action of the first mechanical safety element 130.
  • Each mechanical safety element 130, 140 acts independently of the other on the electrical switch 110 so that the connector 120 transmits information relating to the operation of the circuit breaker 200 and the protection device 300, but the action of the second mechanical safety element 140 has no influence on the circuit breaker 200 in the sense that it does not automatically cause opening or closing of the circuit breaker 200.
  • the first and second mechanical safety elements 130, 140 have as their essential function a function of transfer of the operating state (normal or in default) of the electrical assembly 1 (constituting a self-protected arrester assembly).
  • the front housing portion 312 of the modular block 310 houses a shaft 190; 190 ', the so-called “cassette locking shaft” provided with at least one locking element 191, 191 ', this shaft 190; 190' being movably mounted in the modular block 310 such that its movement is related to the movement of the opening and closing device 230 of the circuit breaker 200, said cassette locking shaft 190; 190 being able to take two distinct positions, namely, on the one hand, a first position called “safety position” corresponding to the engaged state of the circuit breaker, in which each locking element 191; 191 'cooperates with a complementary part 334; 334 'of a lightning arrester cassette 330 so as to prohibit the removal and / or insertion of said lightning arrester cassette 330, and, secondly, a second position called "access position” corresponding to the tripped state of circuit breaker, in which each locking element 191; 191 'le
  • an elastic return means 193; 193 ' which tends to place the cassette lock shaft 190; 190' in the safety position.
  • the cassette locking shaft 190; 190 ' comprises as many locking elements 191; 191' as there are lightning arrester cassettes 330 accommodated in said housing 320.
  • the cassette locking shaft 190; 190 ' comprises three locking elements 191; 191' each associated with a lightning arrester cassette 330.
  • the cassette lock shaft 190 has an end 192 which cooperates with a transmission element 180 which is pivotally connected to the first mechanical safety element 130 of the modular interface 100 and which is mounted for free rotation around a shaft A4 axis parallel to the axis X1 of rotation of said first mechanical safety element 130.
  • the cassette lock shaft 190 is placed under the bottom wall 315 which defines the housing 320 for receiving the lightning arrester cassettes 330 of the front housing portion 312 of the modular block 310.
  • This shaft 190 is pivotally mounted in notches at the bottom rounded interior arrangements 319B (forming pivot bearings) of a lower housing front portion 319.
  • the shaft 190 is held in these bearings 319B by means of holding tabs 319A from this lower housing portion 319B.
  • the transmission element 180 is in the form of a butterfly with a cylindrical central body which carries on its outer face two wings 181, 182 extending generally in opposite directions.
  • the central cylindrical body is pierced axially and threaded onto the shaft A4 fixed to the housing of the modular block 310 (see FIG. figure 23 ).
  • One of the wings 181 of the transmission element 180 is in permanent support against a wall 137 carried by the inner face of the plate 131 of the first mechanical safety element 130, internal face which also supports the bearing 132 for receiving the shaft A1.
  • the other flange 182 of the transmission element 180 is in permanent abutment against said end 192 of the cassette locking shaft 190.
  • This end 192 is in the form of a plate extending transversely to the longitudinal axis of the tree 190.
  • the elastic return means which tends to place the cassette locking shaft 190 in its safety position, is a wire spring 193 wound around the cassette locking shaft 190, one end of which is connected to said shaft and whose other end is locked against a fixed part (the lower housing part 319) of the modular block 310.
  • each stud 191 of the cassette locking shaft 190 protrudes through the window 315B into the mounting groove 315A of the corresponding arrester cassette 330 (see FIG. figure 18 ).
  • each stud 191 is placed in abutment against the inclined face 334A of a stud 334 carried by the lower face 331 C of the housing 331 of each lightning cassette 330 engaged in each groove 315A of the modular block 310 (see Figures 36 and 37 ).
  • the pads 191 in the safety position thus prohibit the removal of the arrester cassettes 330 from the modular block 310 of the protection device 300.
  • each pad 191 of the cassette locking shaft 190 is set back from the outlet of said window 315B inside the housing of the modular block 310 so as to allow withdrawal and / or racking-up. of one or more lightning arresters in the modular block 310 of the protection device 300 (see figures 39 and 40 ).
  • cassette locking shaft 190 ' is in the form of a slide mounted movable in translation in a translation direction T in the modular block.
  • This strip is provided with at least one notch 191 '(here three notches 191') oriented in the direction of translation T of said strip so that, on the one hand, in said safety position each notch 191 'is engaged on a stud 334 'carried by the lower face 331C of the housing 331 of a lightning arrester cassette 330 to link this lightning arrester cassette 330 to the cassette locking shaft 190' (see FIG. figure 42 ), and, secondly, in said access position each notch 191 'is remote from the stud 334' integral with the corresponding lightning cassette 330 to release the lightning cassette 330 from the cassette locking shaft 190 '(see FIG. figure 44 ).
  • the strip 190 comprises successively from the end located on the side of the circuit breaker 200, a first rectangular notch 191' and two L-shaped notches whose shorter length portions extend in the direction of translation T and constitute said notches 191 'of engagement on the studs 334' of the arrester cassettes 330.
  • the elastic return means which tends to place the cassette lock shaft 190 'in its safety position, is a compression coil spring 193' interposed between an end portion 192'A of the cassette lock shaft 190 'and a fixed part of the modular block 310.
  • the cassette locking shaft 190 ' is also placed under the bottom wall which delimits the receiving housing of the arrester cassettes 330 of the front housing part of the modular block and the studs 334' which project from the lower faces 331C of the arrester cassettes 330 through the windows provided at the bottom of the mounting grooves of the arrester cassettes 330 to cooperate with said notches 191 'of the cassette lock shaft 190'.
  • the first mechanical safety element 130 is adapted, when it passes from the armed position to the triggered position, to bear against an edge 192'B of an end 192 'of the cassette lock shaft 190' for the pushing in its access position against the biasing action of the coil spring 193 '.
  • the cassette locking shaft 190; 190 'advantageously forces the user to open the electrical circuit to which the electrical assembly 1 is connected, by opening or tripping the circuit breaker 200, to intervene on one of the lightning arrester cassettes 330 of the appliance
  • the protection device 300 then advantageously has a secure access for the user.
  • the protection device 300 In normal operation of the electrical assembly 1, the protection device 300 is connected to the electrical network by the circuit breaker 200 which is switched on (the electrical circuit of which is closed) and the first mechanical safety element 130 of the modular interface 100 is placed in an armed position (see figures 38 and 43 ).
  • the wire spring 193 holds the cassette locking shaft 190 in its safety position in which the studs 191 which it bears are in abutment against the inclined faces 334A of the studs 334 of the lightning arrestor cassettes 330 of FIG. protection apparatus 300 so as to prevent the user from extracting one of said lightning arrester cassettes 330 from the modular block 310 (FIG. Figures 36 and 37 ).
  • the coil spring 193 pushhes the cassette lock shaft 190' into its safety position in which the notches 191 'are engaged on the studs 334' of the lightning arrester cassettes 330 of the protection device. in order to prevent the user from extracting one of said lightning arrester cassettes 330 from the modular block ( Figures 42 and 43 ).
  • the pads 190 slide against the inclined faces 334A of the pads 334 carried by the lower faces 331C of the lightning arrestor cassettes 330 to be inserted inside the housing of the modular block 310, below the lower wall 315 of the housing 320 in which are inserted the lightning arrester cassettes 330.
  • the pads 191 are erased under the studs 334 of the arrester cassettes 330 (FIG. figures 39 and 40 ) and the user can extract the damper cassette 330 damaged from the modular block of the protective device and skew a new one.
  • this plate 131 bears against the edge 192'B of the end 192 'of the cassette locking shaft 190' to push it in translation in the direction T since its safety position towards its access position against the action of the coil spring 193 'which compresses.
  • the notches 191' move in the translation direction T away from said pads 334 'of the lightning arrester cassettes 330.
  • the notches 191 ' are disengaged from the studs 334' of the arrester cassettes 330 and the user can extract the damaged arrester cassette 330 from the modular block of the protection apparatus and insert a new one.
  • the user can again close the electrical circuit of the circuit breaker 200 by raising the lever 230 which actuates the levers, which has the effect of driving in rotation the plate 131 of the first mechanical security element 130 from its triggered position to its armed position.
  • said plate 131 then releases the pressure on the transmission element 180 and the wire spring 193 expands by returning the cassette locking shaft 190 to its safety position in which studs 191 it carries, emerge through said windows 315B above the bottom wall 315 of the housing 320 in which are inserted the lightning arrester cassettes 330, to be placed in stop against the inclined faces 334A of the studs 334 of the surge arrester cassettes 330 ( Figures 36 and 37 ).
  • the cassette locking shaft 190 provided with its pads 191 thus blocks the lightning arrester cassettes 330 in the modular block 310 of the protection device 300.
  • said plate 131 is erases the edge 192'B of the end 192 'of the cassette lock shaft 190' and thus releases its support thereon.
  • the helical spring 193 'of compression expands by bringing the cassette locking shaft 190' back to its safety position in which the notches 191 'which it comprises are engaged on the studs 334' of the lightning arrester cassettes 330 ( figure 42 ).
  • the cassette locking shaft 190 'provided with its notches 191' thus blocks the lightning arrester cassettes 330 in the modular block of the protection device.
  • the pin 133 which establishes the connection between, on the one hand, the first mechanical safety element 130 of the modular interface 100 of the protection device 300, and, on the other hand , the opening and closing device 230 of the circuit breaker 200 is advantageously mounted in axial translation through said plate 131.
  • the pin 133 being positioned in the retracted position and the latches 341, open in the unlocked position, placing the hooks 340 in the rest position, the main lateral face 313 of the protection device 300, against which it must be
  • the circuit breaker 200 is no longer supported by the circuit breaker 200, and the circuit breaker 200 against the protection device 300 can be easily fitted by a simple vertical translational movement along this lateral main face 313.
  • the lower latch 341 for locking the lashing of one modular device to another forms a means for axially moving said pin 133 between its retracted and extended positions.
  • the modular block 310 of the protection device 300 houses a fixed support 351 L-profile with a right-angle return 351A oriented perpendicularly to the main lateral faces 313 of said block.
  • This fixed support 351 is integral with the side wall 350 which closes one side of the front portion 312'A of the front wall 312A of the modular block 310. More specifically, this side wall 350 carries said fixed support 351 projecting on its face. internal side turned towards the mechanism of the modular interface 100. In contrast, the outer face of this side wall 350 laterally delimits said housing 320 for receiving the lightning arrester cassettes 330.
  • the pin 133 also has a base 133A which, in the retracted position of said pin 133 (see FIG. figures 47 and 48 ), is placed against a face (the lower face) of the return 351A of said fixed support 351.
  • This bottom face of the return 351A of said fixed support 351 forms a guiding surface against which the base 133A of said pin 133 is adapted to slide during the axial displacement of said pin 133 between its retracted and extended positions.
  • the modular block 310 houses a control portion 341C which has a groove 341 D extending in a direction parallel to said lateral main face 313 concerned of the modular block 310.
  • the base 133A of the counter 133 is provided with a mounting shank 133B mounted in the groove 341 D of said control portion 314C.
  • This mounting tail 133B here preferably has a T-shape with, on the one hand, a foot extending from the base 133A of the pin 133 in a radial direction to pass through the groove 341 D of the control portion 341C and, on the other hand, a head perpendicular to the foot which extends outside the groove 341 D therethrough to retain said mounting shank 133B in said groove 341 D (see FIG. figures 25 , 41 and 47 ).
  • This control portion 341C is here attached to the stroller-pull 341A of the lower latch 341 laterally bearing said hook 340 (see FIGS. figures 48 , 51 , 54 ).
  • control portion 341C, said pull-stroller 341A and said hook 340 corresponding belong to a single piece integrally molded plastic.
  • Said control portion 341C is then advantageously operable from outside the modular block by means of said stroller 341A 341A latch 341 to be moved in translation in the oblique direction Z of translation of the pushchair 341 A.
  • the base 133A of the pin 133 is locked against the return 351A of the fixed support 351 in the direction parallel to the main lateral face 313 of the modular block 310, and the control portion 341C is placed in the lower position since the stroller-zipper 341A to which it is attached is placed in the unlocked position emerging outside the modular block 310.
  • the mounting shank 133B of the base 133A of the pin 133 is then positioned against the bottom of the groove 341 D of the control portion 341C .
  • the circuit breaker 200 is in its triggered state with its operating lever 230 and its levers lowered.
  • the angle of inclination of the oblique direction Z with respect to the axis X is here of the order of 65 °.
  • the displacement along the X axis of the pin 133 is about 5 mm for a displacement of about 10 mm from the control portion 341C in the direction Y parallel to the main lateral face 313.
  • the bottom of the groove 341 D s is then moved away from the mounting shank 133B of the pin 133 by a distance of about 10 mm.
  • the bottom 341 E of the groove 341D of said control portion 341C forms a driving surface which, upon opening of said latch 341 causing the displacement of said control portion 341C in said oblique direction Z ( figure 56 ), is able to press said pin 133 in the extended position to force it, from its raised position in said opening 313A, to move slightly towards its lowered position against the front edge 351 B of said fixed support 351, in an arcuate direction of a circle generally transverse to its direction of axial displacement (along the X axis) so that said pin 133 causes the lowering of said opening and closing device 230 of said circuit breaker 200 to the tripped state of the circuit breaker 200.
  • the electrical safety is enhanced since the unlocking of the securing of the circuit breaker 200 to the protection device 300 automatically causes, via the pin 133, the tripping of the circuit breaker 200.
  • FIG. 58 to 63 there is shown a variant embodiment of the modular protection device 300 which resembles the embodiment which is described except that the pin 133 which establishes the connection between the opening and closing device 230 of the circuit breaker 200 and the first mechanical safety element 130 is fixed relative to the plate 131.
  • the pin 133 may come into formation with said plate 131 or it may be fixedly attached thereto.
  • the plate 131 carries a front portion of the pin 133 on its side facing the lateral main face 313 of the modular block 310 joining, and on the opposite opposite side, it carries a rear portion of the pin 133 provided at its end free of the base 133A supporting the mounting shank 133B.
  • the pin 133 being fixed with respect to the plate 131 of the first mechanical safety element 130 of the modular interface 100, it is permanently positioned in projection of the main lateral face 313 of the modular block 310, through the opening 313A corresponding while being able to be moved in said opening 313A between its lowered and raised positions.
  • it is necessary to approach the circuit breaker slightly at an angle to engage the pin 133 in the corresponding light of its housing and then straighten the circuit breaker to connect it electrically to the electrical conductors emerging from the cassette 400.
  • the mounting tail 133B of the pin 133 is mounted in a straight groove 341 D of the control portion 341C connected to the stroller-pull 341A of the lower latch 341 which carries a hook 340 for latching. securing the circuit breaker 200 to the modular block 310 of the protection apparatus 300.
  • This stroller 341A moves and operates as the stroller-zipper of the embodiment previously described except that here it carries a rib 341 B right which cooperates with a straight groove (not visible in the figures) provided in the front wall of the modular block.
  • this pull-stroller 341A moves parallel to the lateral main face 313 of the modular block 310 between its unlocked and locked positions (its operation has already been described above in the text).
  • the fixed support 351 which appears on the figures 59 , 61 and 63 here is inactive since the pin 133 is fixed relative to the plate 131.
  • the base 133A of the pin 133 remains besides always out of reach of said fixed support 351.
  • the bottom 341 E of the groove 341 D of said control portion 341C forms a driving surface which, upon opening of said lock 341 causing the displacement of said control portion 341C in the vertical direction along the face main side 313 ( figure 63 ), is able to press the mounting tail 133B connected to the plate 131 to force the pin 133 placed in the raised position (also linked to the plate 131) to move in the opening 313A to its lowered position to cause the lowering said opening and closing device 230 of said circuit breaker 200 to the tripped state of the circuit breaker 200.
  • the electrical safety is enhanced since the unlocking of the securing of the circuit breaker 200 to the protection device 300 automatically causes, via the pin 133, the tripping of the circuit breaker 200.
  • the circuit breaker 200 is shown in its tripped state with its opening and closing device 230 lowered, connected to the pin 133 in the lowered position emerging from the main lateral face 313 of the modular block 310 of the protection device 300.
  • the securing of the circuit breaker 200 to the modular block 310 is locked by pushing on the push-pulls 341A of the locks 341 in order to hook the hooks 340 in the corresponding windows of the circuit-breaker box.
  • the stroller 341A 341A of the lower latch which is sinking inside the modular block 310, vertically moves upward the groove 341 D of the control portion 341C relative to the base 133A of the pin 133 carried by the platen 131. The bottom of the groove 341 D then moved away from the mounting shank 133B by a distance of about 10 mm.
  • the installer or user unlocks the lower latch 341, as shown by the Figures 62 and 63 it pulls on the control portion 341C which then presses by its driving surface 341E on the mounting tail 133B connected to the plate 131 to slightly move the pin 133 in the opening 313A from its raised position to its lowered position so that it causes the lowering of the operating lever 230 and the tripping of the circuit breaker 200.
  • the installer or the user can then safely intervene on the protection device 300 and / or on the circuit breaker 200 which are isolated from the circuit of the electrical installer.
  • the pin intended to establish the junction between at least one state transfer element of the modular apparatus and the opening and closing device of the circuit breaker is fixedly secured to a plate mounted to slide axially and rotatably on a mounting axis (parallel to said pin, that is to say perpendicular to the lateral main face considered of the housing of the modular device) integral with a fixed part of the housing of the modular device.
  • An edge of this plate, located for example near the mounting axis, is sandwiched between the two teeth of the head of a fork whose handle carries a pin mounted to slide in a groove of a stroller-zipper.
  • the stroller-zipper in question includes a groove with an oblique portion cooperating with an oblique rib provided in correspondence on the inner face of a front wall of the housing of the modular device.
  • the head of the fork is slidably mounted on an axis integral with said fixed part of the housing of the modular apparatus, this axis extending parallel to said mounting axis of said plate and said pin carried by said plate.
  • at least one positioning rib integral with a fixed part of the housing of the modular apparatus for positioning the pin, in the lowered position, in the bean-shaped opening of the corresponding lateral main face is provided. of the modular device.
  • the fork drives in translation the plate which carries the pin, according to its axis of assembly so as to release the pin outside the housing of the modular device through the corresponding opening of the face main side of this case.
  • the plate driven by the fork can not pivot about its mounting axis since one of its edges is blocked against the edge of the fixed ribs or said housing.
  • the pin is placed in the extended position and in the lowered position in the opening of the corresponding lateral main face of the housing of the modular apparatus and the plate is advanced so that it is disengaged its cooperation with said ribs of the housing so as to be pivotable about its mounting axis.
  • the installer can then raise the joystick of this device opening and closing to engage the circuit breaker, the connecting pin of the modular apparatus navigating in its opening to be placed in the raised position by causing the pivoting of said plate around its mounting axis.
  • the user unlocks the lock by pulling the stroller-zipper with the tip of a tool that engages in a light provided for this purpose in said stroller-zipper. It then translates said stroller-zipper in the oblique direction of its groove so as to unhook the hook hook attached to the stroller and pull back said fork along its axis and, thereby, to back the plate to inside the housing of the modular apparatus for placing said connecting pin in the retracted position.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Casings For Electric Apparatus (AREA)
  • Breakers (AREA)
  • Fuses (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP15307059.4A 2014-12-30 2015-12-18 Appareil modulaire à sécurite renforcée et ensemble électrique auto-protégé comprenant un tel appareil modulaire assemblé à un disjoncteur Active EP3041021B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL15307059T PL3041021T3 (pl) 2014-12-30 2015-12-18 Aparat modułowy o zwiększonym bezpieczeństwie i samochroniony zespół elektryczny zawierający taki aparat modułowy połączony z wyłącznikiem
SI201530120T SI3041021T1 (sl) 2014-12-30 2015-12-18 Modularna naprava s povečano varnostjo in samozaščiteni električni sestav, ki obsega takšno modularno napravo, sestavljeno z odklopnikom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1463454A FR3031233B1 (fr) 2014-12-30 2014-12-30 Appareil modulaire a securite renforcee et ensemble electrique auto-protege comprenant un tel appareil modulaire assemble a un disjoncteur

Publications (2)

Publication Number Publication Date
EP3041021A1 EP3041021A1 (fr) 2016-07-06
EP3041021B1 true EP3041021B1 (fr) 2017-08-02

Family

ID=53200046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15307059.4A Active EP3041021B1 (fr) 2014-12-30 2015-12-18 Appareil modulaire à sécurite renforcée et ensemble électrique auto-protégé comprenant un tel appareil modulaire assemblé à un disjoncteur

Country Status (5)

Country Link
EP (1) EP3041021B1 (pl)
ES (1) ES2645421T3 (pl)
FR (1) FR3031233B1 (pl)
PL (1) PL3041021T3 (pl)
SI (1) SI3041021T1 (pl)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2420839A1 (fr) * 1978-03-22 1979-10-19 Legrand Sa Disjoncteur, son mecanisme de declenchement
GB2140209B (en) * 1983-04-20 1988-03-30 Airpax Corp Circuit breaker
FR2711840B1 (fr) * 1993-10-22 1996-01-26 Legrand Sa Interface d'adaptation pour interrupteur différentiel multipolaire.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
PL3041021T3 (pl) 2018-01-31
FR3031233B1 (fr) 2017-01-27
SI3041021T1 (sl) 2017-12-29
EP3041021A1 (fr) 2016-07-06
ES2645421T3 (es) 2017-12-05
FR3031233A1 (fr) 2016-07-01

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