EP0823720B1 - Switchgear for an electric installation, multipolar switch and reversing switch with such a switchgear - Google Patents
Switchgear for an electric installation, multipolar switch and reversing switch with such a switchgear Download PDFInfo
- Publication number
- EP0823720B1 EP0823720B1 EP19970440063 EP97440063A EP0823720B1 EP 0823720 B1 EP0823720 B1 EP 0823720B1 EP 19970440063 EP19970440063 EP 19970440063 EP 97440063 A EP97440063 A EP 97440063A EP 0823720 B1 EP0823720 B1 EP 0823720B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cut
- thrustor
- neutral
- slide
- modules
- 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.)
- Expired - Lifetime
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0066—Auxiliary contact devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
- H01H11/0018—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different operating parts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
- H01H15/02—Details
- H01H15/06—Movable parts; Contacts mounted thereon
- H01H15/10—Operating parts
- H01H15/102—Operating parts comprising cam devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
- H01H11/0018—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different operating parts
- H01H2011/0025—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different operating parts with provisions for allowing different orientation of the operating part, e.g. turning knob can be mounted in different positions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
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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
- H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
Definitions
- the present invention relates to a switching device for an installation electric, such as a switch or a fuse switch, comprising at least two phase conductors and a neutral conductor, this apparatus comprising, in a common box, at least two cut-off modules corresponding to the conductors phase of said installation, arranged adjacent to each other and each provided with two fixed contacts associated with two mobile contacts, these mobile contacts having two stable positions, i.e.
- this device comprising, in the block of control, a fixed conductor called "neutral passing" and corresponding to neutral conductor of said installation, the control unit comprising a member of breaking said "neutral passing", this breaking member comprising a contact mobile disposed between two fixed contacts on the path of said "neutral passing” and a mobile pusher arranged to control said mobile contact and having two positions stable, an engaged position in which the movable contact is closed and a tripped position in which the movable contact is open.
- the present invention also relates to a multipole switch and a change-over switch obtained respectively by combining two cut according to the invention.
- the invention relates to switching devices such as switches, fused switches and change-over switches for the distribution of electrical energy, in particular three-phase with neutral.
- switching devices such as switches, fused switches and change-over switches for the distribution of electrical energy, in particular three-phase with neutral.
- the neutral conductor is not cut when the switchgear is placed in the tripped position.
- the switching device manufacturers replace, in the switching module corresponding to the neutral conductor, fixed and movable contacts by one piece removable conductor forming a jumper that connects the input terminal directly to the output terminal of said module. If the neutral conductor must be cut for reasons maintenance, modification of downstream equipment, etc., then bridging mobile can be removed by a suitable tool.
- the devices connected downstream between a phase conductor and the neutral conductor are supplied with + or - 380 volts depending on their impedance being given that there is a return voltage via the neutral conductor.
- the "neutral passing" is placed directly on top of the housing of the block command, it is not protected against possible contact, which represents also a danger for the personnel working on the installation.
- German publication DE 43 12 594 A describes a device for interlocking and tripping of neutral in a switch, thanks to a coupling of the bars of neutral and phase conductors.
- the actuation of the contact of neutral can only be carried out in conjunction with that of the phase contacts.
- Swiss publication CH 547 003 A describes a circuit breaker provided with a movable contact for a passing neutral, this contact being integral with a material tab elastic synthetic whose upper end is locked in the housing and provided a protrusion blocking the control handle of the switch if the neutral is sets off.
- these means implemented do not offer sufficient security: the force of the spring is not necessarily sufficient to take off the movable contact if it remains soldered to the fixed contacts in the event of overheating, tripping of the contact mobile is done by hand without tools, the tongue can be easily broken allowing the commissioning of the phases and no longer fulfilling its role of displaying the position of the moving neutral contact.
- known breaking devices do not make it possible to achieve simple and reliable multi-pole switches or change-over switches controlled by a common operating handle and obtained by association of two devices arranged side by side respectively in the same direction or in a direction reversed.
- the device control unit known cutoff is not suitable for transmitting the force of the handle maneuver to the movable contacts of the phase conductors and obtain a satisfactory synchronous operation. Therefore, the switching device corresponding is designed with a specially adapted reinforced mechanism, which obliges manufacturers to design, manufacture and manage a product and therefore a reference specific.
- control blocks of the two associated and inverted devices are generally connected by one or more rods of link to transmit the force of the handle from one of the blocks in reverse to the other block.
- This linkage linkage generates an additional cost, a significant bulk and sometimes a cause of mechanical play which influences the speed and synchronism of switching.
- the purpose of the present invention is to overcome the drawbacks mentioned above by proposing a breaking device of simple, reliable and inexpensive design, this apparatus being provided with a "passing neutral" and comprising a device guaranteeing maximum operational safety in order to avoid electrical risks for the staff and equipment.
- this neutral when the neutral is open, it is impossible to force the commissioning of the phases.
- the triggering of the neutral requires the use of a tool therefore cannot result from a handling error.
- This trigger is also positive in order to avoid any risk of "sticking" of the movable contact on the fixed contacts.
- the design of this cut-off ensures transmission of movement between the operating handle and the movable contacts of direct phase conductors, positive and practically free of play. This feature allows it to be combined with other identical and standard devices to realize, in a simple, very reliable way and without additional cost, switches multipolar and change-over switches.
- a switching device as defined in the preamble and characterized in that it comprises a safety device arranged to prevent, on the one hand, the tripping of the "neutral passing" switching device when the cut of the phase conductors are engaged and, on the other hand, the engagement phase conductor cutoff modules when the cutoff member of the "neutral passing” is triggered
- this safety device comprising a slide coupled to said transmission axis and movable in translation in a perpendicular plane in the plane of movement of said pusher between two stable positions, a first position corresponding to the engaged position of the cut-off modules phase conductors and a second position corresponding to the triggered position modules for cutting the phase conductors, the slide and the pusher being arranged to cooperate in abutment and lock each other according to said positions.
- the security device comprises a finger integral locking of the pusher cooperating with the slide so that, in the first stable position of the slide, the locking finger is in abutment against a first face of the slide preventing the triggering of the switching off of the "neutral passing" and, in the second stable position of the slide, if the "neutral passing" switching device is in the tripped position, the locking is in abutment against a second face of the slide perpendicular to the first side and preventing the interlocking of the conductor cut-off modules phase before the switching on of the "neutral passing” breaking device.
- the cut-off device advantageously comprises a return spring provided between the case of the control unit and the movable contact of the "neutral passing", this spring being arranged to maintain said movable contact in abutment against the pusher and bring it back from its open position to its closed position.
- the pusher may include a head provided with an imprint arranged to receive a suitable tool for operating the pusher from a stable position to the other, the head being arranged to be protruding on the housing of said control unit in the engaged position and pressed into said housing in the released position.
- the pusher comprises a member blocking device which keeps it in the triggered position.
- This blocking member can have a lateral lug provided on the head of the pusher, this lug being arranged to slide in a corresponding cutout provided in the housing of the block control when moving the pusher between its two stable positions and for abut against an inner face of the housing when the pusher is in its position triggered and after being turned on itself by a determined angle.
- the movable contact is arranged perpendicular to the direction of movement of the pusher, the return spring being located in the axis of said pusher.
- the movable contact is arranged in parallel in the direction of movement of the pusher, the return spring being located perpendicular to the axis of said pusher.
- the movable contact is advantageously carried by a mobile support provided with an inclined ramp arranged to cooperate with said pusher provided with an inclined ramp of complementary angle, this movable support being extended by a guide arm in translation arranged to slide on the "neutral passing.
- the slide carries on its outer face at least two aligned bosses arranged to cooperate with a piston of a contact module auxiliary coupled to said control unit.
- a multipole switch such as as defined in the preamble and characterized in that the switching devices are juxtaposed in the same direction of orientation, are coupled to their transmission axis and have a common operating handle on one of the devices of such so that the tilting of the handle causes the engagement or simultaneous tripping of all the cut-off modules corresponding to phase conductors.
- a change-over switch as defined in preamble and characterized in that the switching devices are juxtaposed in a reverse direction of orientation, are coupled to their transmission axis and have a common operating handle on one of the devices in such a way that the tilting the handle causes the reverse engagement or tripping of modules for cutting the phase conductors of a device with respect to those of the other device.
- the switching device 1 such as a switch or a fuse switch, comprises, in a common housing 1 ', three break modules 2, shown by dotted lines, corresponding to three conductors phase of an electrical installation and a control unit 3 comprising at least an operating handle 4 and a transmission axis 5.
- the cut-off modules 2 each traditionally comprises an input terminal 6 and a terminal output 7, two fixed contacts carried by terminals 6, 7 and two movable contacts establishing or interrupting the electrical contact between the two fixed contacts, at the possibly through a protective fuse.
- These mobile contacts provide double break and are arranged to have two stable positions, namely a closed position in which the corresponding phase conductor circuit is closed and an open position in which this circuit is open.
- These mobile contacts are coupled, generally by a cam system, to said transmission axis 5 which passes through said device 1, from the control unit 3 to the last cut-off module 2, this transmission axis being itself coupled to the operating handle 4.
- This is generally a handle of the type called "1/4 turn" which ensures the control of movable contacts following a 90 ° rotation.
- the handle of maneuver 4 is arranged on the front face of the device and is coupled to the axis of transmission 5 via a handle axis 8 oriented perpendicularly said transmission axis 5.
- the operating handle 4 can be arranged either on the right side or on the left side of the device and, in this case, it is directly coupled to the axis of transmission 5 which opens into the sides of the housing 1 '.
- This handle 4 can be disposed adjacent to said housing 1 ′ or at a distance by means of an extension with axis 8 'in the case in particular where the device 1 is located in an electrical cabinet control, so that the handle is accessible outside of this cabinet.
- the housing 1 'of the switching device 1 is open leaving appear the transmission axis 5, the terminals 6 of the cut-off modules phase conductors, the inside of the control block 3 and two contact modules auxiliary 9 arranged above said block and described below.
- Transmission axis 5 is associated with a snap mechanism 10, housed in control block 3, which allows to accumulate the maneuvering energy in the first part of the stroke of the handle 4 and restore it in a very short time to the transmission axis 5 controlling the switching of the movable contacts of said breaking modules 2. By Consequently, the switching on and off of the cut-off modules 2 take place instantly.
- This mechanism 10 comprises, in known manner, a cylinder 11 whose body is mounted on the housing 1 'around a pivot 12 and whose rod is articulated at the end of a lever 13 integral and perpendicular to the axis of transmission 5.
- a return spring 14 is provided around the body of this jack 11 and acts by pushing on the end of the cylinder rod.
- the control block 3 has two terminals 15, 75, 16, 76 respectively for input and output, for a neutral conductor of the electrical installation. Between these two terminals 15, 75, 16, 76 is provided with a fixed conductor 17, 77 called “neutral passing" and a breaking device 18, 78 detailed below.
- FIGS. 3A and 3B illustrate more clearly a first embodiment of the breaking member 18 of the "neutral passing" 17 which has two fixed contacts 19 and a movable contact 20 with two stable positions, namely a closed position in which the neutral conductor circuit is closed and an open position in which this circuit is open.
- This cut-off member 18 comprises a pusher 21 coupled to the movable contact 20, this pusher being movable in translation in a plane substantially perpendicular to the movable contact 20.
- a return spring 22 disposed in the axis of the pusher 21, between the housing 1 'and the movable contact 20, is arranged to bring this movable contact 20 from its open position to its closed position.
- Pusher 21 is terminated by a head 23, movable in rotation on itself and provided with a slot 24 accessible outside the housing 1 'and arranged to receive a suitable tool, such that a screwdriver which allows to operate said pusher 21 transversely and said head 23 rotating around its axis.
- a lug 25 is provided laterally on the head 23 and constitutes a member for blocking the pusher 21 in the corresponding lower position in the open position of the movable contact 20. During the translation of the pusher 21 of the top to bottom and vice versa, lug 25 slides in a corresponding cutout provided for this purpose in the housing 1 'of the control unit 3.
- the head 23 of pusher 21 In the low position, the head 23 of pusher 21 is turned on itself, for example, a quarter turn to bring the lug 25 into abutment against an inner face of said housing preventing the raising of said plunger 21 under the effect of spring 22.
- this inner face of the housing 1 ' there can be provided an imprint in which can accommodate said lug 25 of so as to avoid any risk of unlocking under the effect, for example, of vibrations.
- the head 23 of pusher 21 is arranged to be protruding on the housing 1 'when the pusher 21 is in the high position corresponding to the closed position of the contact mobile 20 and pressed into the housing 1 'when the pusher 21 is in the low position, the movable contact 20 being open. This head 23 therefore constitutes an organ for direct display of the position of the cut-off member 18 of the "neutral passing" 17.
- the switching device 1 is advantageously equipped with a device security arranged to prevent, on the one hand, the triggering of the cut-off 18 of the "neutral passing" 17 when the cut-off modules 2 of the conductors phase are engaged and, on the other hand, the engagement of the cut-off modules 2 phase conductors when the breaking member 18 of the "passing neutral” 17 is sets off.
- This safety device comprises a slide 30 coupled to the axis of transmission 5 by a pinion-rack link, the pinion 31 being provided on said axis and rack 32 on said slide.
- the slide 30 is arranged to be move transversely in a plane perpendicular to the plane of movement of the pusher 21, between two extreme positions corresponding to the engaged and tripping modules 2 of the phase conductors.
- FIG. 3A The position engaged is shown in Figure 3A, in which the slide 30 is advanced to side of pusher 21.
- the latter is provided with a locking finger 33 positioned laterally under the head 23 and arranged to abut against the upper face 30a of said slide 30. In this position, it is impossible to move the pusher 21 towards the low and therefore trigger the cut-off member 18 of the "neutral passing" 17 when the cut-off modules 2 of the phase conductors are engaged.
- Figure 3B The position triggered is shown in Figure 3B, in which the slider 30 is distant of the pusher 21 and thus releases the locking finger 33 which authorizes movement of the push-button 21 downwards and therefore the triggering of the cut-off member 18 of the "neutral passing" 17.
- the slide 30 carries on its upper face 30a four bosses or cams 36, aligned two by two in the direction of translation of the slide, arranged on either side of the recess central 30 'and arranged to control the auxiliary contact modules 9 illustrated in Figure 2.
- auxiliary contact modules 9 are generally of the "all or nothing" type and are intended to be mounted on the front face of the housing 1 'of the cut 1 above the control unit 3 by means of fixing lugs 37 which engage in housings 38 provided for this purpose. They have a pusher or central control piston 39 which passes through the housing 1 'through a suitable orifice 40 to be actuated by the bosses 36 during the translation of the slide 30 between the two extreme positions engaged and triggered.
- These auxiliary contact modules 9 in particular make it possible to remotely transmit the state of said switching device 1.
- FIGS. 4A, 4B and 5A, 5B illustrate a second embodiment of the member 78 of the "neutral passing" 77 which comprises, as in the example previous, two fixed contacts 79, one movable contact 80 with two stable positions controlled by a pusher 81.
- the difference in design compared to production described with reference to FIGS. 3A and 3B resides in the parallel arrangement of the movable contact 80 relative to the direction of movement of the pusher 81, the contact mobile 80 being carried by a support 90 mobile in translation perpendicular to this pusher.
- the pusher 81 actuates the mobile support 90 via a inclined ramp 86, 91 provided respectively on these two parts in contact, having complementary angles of inclination and constituting an angle gear.
- the depression of the pusher 81 causes the moving support 90 to move away opening the movable contact 80.
- the ascent of the pusher 81 brings the support closer together movable 90 closing the movable contact 80 under the action of a return spring 82 disposed between the housing 1 'and said movable contact 80.
- the movable support 90 made of material dielectric is extended by a guide arm 92 of which part of the section has an L shape, this arm being arranged in parallel with the "passing neutral" 77 and arranged to slide on the latter thus ensuring guiding in translation.
- This mobile support 90 is also guided transversely by a protuberance 87 in inverted L shape provided on pusher 81 and oriented perpendicular to the arm guide 92 for abutting against the side of this arm.
- This protuberance 87 has also an indexing role for the mounting position of the support 90 relative to its mark 94.
- the pusher 81 is terminated by a movable head 83 rotating on itself and provided with a slot 84 accessible outside of the housing 1 'and arranged to receive a suitable tool, such as a screwdriver which allows operate said pusher 81 transversely and said head 83 in rotation around its axis.
- a lug 85 is provided laterally on the head 83 and constitutes a member for blocking of the pusher 81 in the low position corresponding to the open position of the movable contact 80 whose operation has been described in the previous example.
- the head 83 of pusher 81 is arranged to be protruding on the housing 1 'when the pusher 81 is in the high position corresponding to the closed position of the contact mobile 80 and pressed into the housing 1 'when the pusher 81 is in the low position, the movable contact 80 being open.
- This head 83 therefore constitutes an organ for direct display of the position of the cut-off member 78 of the "passing neutral" 77.
- This pusher 81 also comprises two axial guide rails 88, 89 provided in 180 ° periphery intended to be housed in corresponding grooves provided in the housing (not shown) so as to guide it in its translational movement along its axis.
- the shape of this pusher 81 is particular since it is the result of a study of lightening and therefore of reduction of matter. Of course other forms could be provided.
- the switching device 1 is equipped with a device for safety device arranged to prevent, on the one hand, the tripping of the breaking device 78 of the "neutral passing" 77 when the cutoff modules 2 of the phase conductors are engaged and, on the other hand, the engagement of the cut-off modules 2 of the phase conductors when the breaking member 78 of the "passing neutral" 77 is sets off.
- the parts of this safety device similar to FIGS. 3A and 3B have the same references. We find the slide 30 coupled to the axis of transmission 5 via a pinion 31 - rack 32 link.
- This slide 30 is arranged to move transversely in a plane perpendicular to the plane of movement of the pusher 81, between two extreme positions corresponding to the on and off positions of the cut-off modules 2 of the phase conductors.
- the engaged position is represented by FIGS. 4A and 4B, in which the slide 30 is advanced next to the pusher 81.
- the latter is provided with a locking finger 93 positioned laterally under the head 93 and arranged to abut against the upper face 30a of said slide 30.
- FIGS. 5A and 5B The triggered position is represented by FIGS. 5A and 5B, in which the slide 30 is moved away from the pusher 81 and thus releases the finger 93 which authorizes the movement of the pusher 81 downwards and therefore the tripping of the breaking member 78 of the "neutral passing" 77.
- FIGS. 6A and 6B illustrate only the control unit 3 surrounded by the housing 1 ′ on which the head 23, 83 of the pusher 21, 81 belonging to the cut-off member 18, 78 of the "passing neutral” is visible.
- this head 23, 83 allows you to view the state of the "neutral passing".
- the head 23, 83 is protruding which corresponds to the engaged position of the cut-off member 18, 78 of the "neutral passing”.
- the locking pin 25, 85 secured to the head 23, 83 and the corresponding cutout provided in said housing 1 '.
- this head 23, 83 is pressed into the housing 1 'which corresponds to the position triggered by said cut-off member 18, 78.
- the head 23, 83 has been turned a quarter of tower and the locking pin 25, 85 has disappeared inside the housing 1 'to abut against an inner face of the latter in order to block the pusher 21, 81 in the low position.
- FIG. 7 and 8 illustrate alternative uses of the switching devices 1 according to the invention in which they are coupled together, in the same direction or in a reverse direction, to constitute respectively a multiple switch of more than three poles, for example six or eight, called multipolar switch 50 in FIG. 7 or a reversing switch 60 in FIG. 8.
- the multipolar switch 50 is used in the case, for example, of a two-voltage supply of an equipment or a simultaneous supply of several circuits, which can have a total of six phase conductors, with or without neutral conductor.
- This multi-pole switch 50 is made simply with two standard switching devices 1A and 1B, such as defined above, each provided with a standard control block 3, arranged side by side side in the same direction and connected at their transmission axis 5 by an axis of square coupling (not shown) similar to the 8 'axle extension used for the handle 4 with reference to FIG. 1, and of suitable length. Only one handle 4 is provided on one of the 1A devices to activate or deactivate all of the cut-off modules 2 of the phase conductors. This technical solution is functionally very satisfactory given that the kinematic chain between the handle 4 and the cut-off modules 2 is very short, of unit ratio and with a low operating clearance.
- Each device 1A, 1B retains its "neutral passing" switching device for which the change of position is closely linked to the position of the cut-off modules 2 thanks to the safety device previously described.
- the reversing switch 60 is used to switch from one power source to another from a single handful of maneuver. This is the case, for example, if equipment supplied by the public distribution must be supplied, in the event of failure of the latter, by a backup power such as a generator.
- This changeover switch 60 is simply achieved with two standard cut-off devices 1A and 1B, such as defined above, each provided with a standard control block 3, arranged side by side side but head-to-tail, i.e. turned 180 ° and connected at their axis of transmission 5 by a square coupling axis (not shown).
- Output terminals 7 of the inverted device 1B are intended to be used as input terminals and its input terminals 6 are intended to be coupled directly to output terminals 7 of device 1A.
- a single handle is provided on one 1A of the devices and allows when the activation of the cut-off modules 2 of the device 1A the triggering of the cut-off modules 2 of the device 1B and vice versa, the transmission axes 5 correspondents being reversed.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Breakers (AREA)
Description
La présente invention concerne un appareil de coupure pour une installation électrique, tel qu'un interrupteur ou un interrupteur à fusible, comportant au moins deux conducteurs de phase et un conducteur neutre, cet appareil comportant, dans un boítier commun, au moins deux modules de coupure correspondant aux conducteurs de phase de ladite installation, disposés de manière adjacente et pourvus chacun de deux contacts fixes associés à deux contacts mobiles, ces contacts mobiles ayant deux positions stables, soit une position fermée dans laquelle le circuit du conducteur de phase correspondant est fermé et une position ouverte dans laquelle ce circuit est ouvert, ces positions correspondant respectivement aux positions enclenchée et déclenchée dudit appareil, et, un bloc de commande desdits contacts mobiles, disposé de manière adjacente à l'un de ces modules et comportant au moins une poignée de manoeuvre et au moins un axe de transmission couplé d'une part à ladite poignée et d'autre part auxdits contacts mobiles, cet axe de transmission étant agencé pour traverser lesdits modules de coupure, cet appareil comportant, dans le bloc de commande, un conducteur fixe appelé "neutre passant" et correspondant au conducteur neutre de ladite installation, le bloc de commande comportant un organe de coupure dudit "neutre passant", cet organe de coupure comportant un contact mobile disposé entre deux contacts fixes sur le trajet dudit "neutre passant" et un poussoir mobile agencé pour commander ledit contact mobile et ayant deux positions stables, une position enclenchée dans laquelle le contact mobile est fermé et une position déclenchée dans laquelle le contact mobile est ouvert.The present invention relates to a switching device for an installation electric, such as a switch or a fuse switch, comprising at least two phase conductors and a neutral conductor, this apparatus comprising, in a common box, at least two cut-off modules corresponding to the conductors phase of said installation, arranged adjacent to each other and each provided with two fixed contacts associated with two mobile contacts, these mobile contacts having two stable positions, i.e. a closed position in which the circuit of the conductor corresponding phase is closed and an open position in which this circuit is open, these positions corresponding respectively to the engaged and triggered by said device, and a control block for said movable contacts, arranged adjacent to one of these modules and comprising at least one handle of operation and at least one transmission axis coupled on the one hand to said handle and on the other hand to said movable contacts, this transmission axis being arranged for pass through said cut-off modules, this device comprising, in the block of control, a fixed conductor called "neutral passing" and corresponding to neutral conductor of said installation, the control unit comprising a member of breaking said "neutral passing", this breaking member comprising a contact mobile disposed between two fixed contacts on the path of said "neutral passing" and a mobile pusher arranged to control said mobile contact and having two positions stable, an engaged position in which the movable contact is closed and a tripped position in which the movable contact is open.
La présente invention concerne également un interrupteur multipolaire et un commutateur-inverseur obtenus respectivement en associant deux appareils de coupure selon l'invention.The present invention also relates to a multipole switch and a change-over switch obtained respectively by combining two cut according to the invention.
L'invention concerne des appareils de coupure tels que des interrupteurs, des interrupteurs à fusibles et des commutateurs-inverseurs destinés à la distribution de l'énergie électrique, notamment en triphasé avec neutre. Dans certaines configurations de distribution électrique et, en particulier lorsqu'il s'agit d'un réseau électrique en régime appelé "TNC", il est souhaitable que le conducteur neutre ne soit pas sectionné lorsque l'appareil de coupure est mis en position déclenchée. Dans ce cas, les fabricants d'appareils de coupure remplacent, dans le module de coupure correspondant au conducteur neutre, les contacts fixes et mobiles par une pièce conductrice amovible formant un pontage qui relie la borne d'entrée directement à la borne de sortie dudit module. Si le conducteur neutre doit être coupé pour des raisons de maintenance, de modification d'un équipement en aval, etc., alors le pontage mobile peut être démonté par un outil approprié. Une autre solution adoptée par certains fabricants est d'intégrer, dans le bloc de commande, un conducteur neutre appelé "neutre passant" associé à un système de coupure manuelle et indépendant de la coupure des conducteurs de phase comprenant un outil adéquat pour démonter les vis de fixation dudit "neutre passant". Ce système de coupure manuelle du "neutre passant" présente néanmoins plusieurs inconvénients exposés ci-après. D'une part, si le "neutre passant" est disposé dans le fond du boítier du bloc de commande, il est difficile voire impossible pour l'opérateur de vérifier l'état du "neutre passant", c'est-à-dire s'il est ouvert ou fermé, visuellement et sans appareil de contrôle. Par ailleurs, il existe une totale indépendance entre les positions enclenchée et déclenchée du "neutre passant" et les positions enclenchée et déclenchée des modules de coupure des conducteurs de phase. L'inexistence d'un dispositif d'interverrouillage entre la position du "neutre passant" et la position des modules de coupure des conducteurs de phase peut être dangereuse, à la fois, pour le matériel et pour un opérateur, dans le cas notamment où il enclenche par la poignée de manoeuvre lesdits modules de coupure des conducteurs de phase et que le "neutre passant" est en position déclenchée. En effet, pour un réseau du type "TNC", le conducteur neutre fait office de conducteur de terre et de neutre. Par conséquent, la mise en service de l'équipement en aval de l'interrupteur avec le conducteur neutre coupé ou sectionné implique qu'il n'y a plus de protection du circuit aval. Il existe donc un danger dû au risque électrique pour le personnel intervenant sur l'installation en fonctionnement car elle n'est plus protégée. De plus, dans ce cas, les appareils branchés en aval entre un conducteur de phase et le conducteur neutre sont alimentés en + ou - 380 volts selon leur impédance étant donné qu'il existe une tension de retour par le conducteur neutre. D'autre part, dans le cas où le "neutre passant" est disposé directement sur le dessus du boítier du bloc de commande, il n'est pas protégé contre un éventuel contact, ce qui représente également un danger pour le personnel intervenant sur l'installation. The invention relates to switching devices such as switches, fused switches and change-over switches for the distribution of electrical energy, in particular three-phase with neutral. In some configurations of electrical distribution and, in particular when it is about an electrical network in regime called "TNC", it is desirable that the neutral conductor is not cut when the switchgear is placed in the tripped position. In this case, the switching device manufacturers replace, in the switching module corresponding to the neutral conductor, fixed and movable contacts by one piece removable conductor forming a jumper that connects the input terminal directly to the output terminal of said module. If the neutral conductor must be cut for reasons maintenance, modification of downstream equipment, etc., then bridging mobile can be removed by a suitable tool. Another solution adopted by some manufacturers is to integrate, in the control block, a neutral conductor called "neutral passing" associated with a manual cut-off system independent of cutting the phase conductors including a suitable tool to dismantle the fixing screw of said "neutral passing". This system of manual shutdown of the "neutral passer-by "nevertheless has several drawbacks set out below. On the one hand, if the "neutral passing" is arranged in the bottom of the control unit housing, it is difficult or even impossible for the operator to check the state of the "neutral passing", that is to say if it is open or closed, visually and without a recording device. Besides, it there is complete independence between the engaged and triggered positions of the "neutral on "and the on and off positions of the cut-off modules phase conductors. The absence of an interlocking device between the position of the "neutral passing" and the position of the phase conductor cutoff modules can be dangerous both for the equipment and for an operator, in the case in particular where it engages by the operating handle said cutting modules phase conductors and that the "neutral passing" is in the tripped position. In indeed, for a network of the "TNC" type, the neutral conductor acts as a conductor earth and neutral. Consequently, the commissioning of equipment downstream of the switch with the neutral conductor cut or cut implies that there is no longer any protection of the downstream circuit. There is therefore a danger due to the electrical risk for the personnel working on the installation in operation because it is no longer protected. In addition, in this case, the devices connected downstream between a phase conductor and the neutral conductor are supplied with + or - 380 volts depending on their impedance being given that there is a return voltage via the neutral conductor. On the other hand, in the case where the "neutral passing" is placed directly on top of the housing of the block command, it is not protected against possible contact, which represents also a danger for the personnel working on the installation.
La publication allemande DE 43 12 594 A décrit un dispositif d'enclenchement et de déclenchement du neutre dans un interrupteur, grâce à un accouplement des barreaux de coupure du neutre et des conducteurs de phase. L'actionnement du contact de neutre ne peut être effectué que conjointement à celui des contacts de phase. Par conséquent, lorsque l'interrupteur est en position 0, que le neutre a été désaccouplé et est en position 1, il n'est pas possible de déclencher le neutre en position 0 sans remettre les phases en position 1, c'est-à-dire en réenclenchant l'interrupteur, ce qui suppose une remise sous tension de l'équipement situé en aval.The German publication DE 43 12 594 A describes a device for interlocking and tripping of neutral in a switch, thanks to a coupling of the bars of neutral and phase conductors. The actuation of the contact of neutral can only be carried out in conjunction with that of the phase contacts. Through Consequently, when the switch is in position 0, that the neutral has been uncoupled and is in position 1, it is not possible to trigger the neutral in position 0 without return the phases to position 1, that is to say by resetting the switch, which assumes that the equipment located downstream is re-energized.
La publication suisse CH 547 003 A décrit un disjoncteur pourvu d'un contact mobile pour un neutre passant, ce contact étant solidaire d'une languette en matière synthétique élastique dont l'extrémité supérieure se bloque dans le boítier et pourvu d'une protubérance bloquant la poignée de commande de l'interrupteur si le neutre est déclenché. Néanmoins, ces moyens mis en oeuvre n'offrent pas une sécurité suffisante: la force du ressort n'est pas forcément suffisante pour décoller le contact mobile s'il reste soudé aux contacts fixes en cas de surchauffe, le déclenchement du contact mobile se fait à la main sans outil, la languette peut être facilement cassée autorisant la mise en service des phases et n'assurant plus son rôle de visualisation de la position du contact mobile du neutre.Swiss publication CH 547 003 A describes a circuit breaker provided with a movable contact for a passing neutral, this contact being integral with a material tab elastic synthetic whose upper end is locked in the housing and provided a protrusion blocking the control handle of the switch if the neutral is sets off. However, these means implemented do not offer sufficient security: the force of the spring is not necessarily sufficient to take off the movable contact if it remains soldered to the fixed contacts in the event of overheating, tripping of the contact mobile is done by hand without tools, the tongue can be easily broken allowing the commissioning of the phases and no longer fulfilling its role of displaying the position of the moving neutral contact.
Par ailleurs, les appareils de coupure connus ne permettent pas de réaliser de manière simple et fiable des interrupteurs multipolaires ou des commutateurs-inverseurs commandés par une poignée de manoeuvre commune et obtenus par association de deux appareils disposés côte à côte respectivement dans le même sens ou dans un sens inversé. Dans le cas d'un interrupteur multipolaire, le bloc de commande des appareils de coupure connus n'est pas adapté pour transmettre l'effort de la poignée de manoeuvre jusqu'aux contacts mobiles des conducteurs de phase et obtenir un fonctionnement synchrone satisfaisant. Par conséquent, l'appareil de coupure correspondant est conçu avec un mécanisme renforcé spécialement adapté, ce qui oblige les fabricants à concevoir, fabriquer et gérer un produit et donc une référence spécifique. Dans le cas d'un commutateur-inverseur, les blocs de commande des deux appareils associés et inversés sont généralement reliés par une ou plusieurs tringles de liaison pour transmettre l'effort de la poignée d'un des blocs en sens inverse à l'autre bloc. Cette tringlerie de liaison génère un surcoût, un encombrement important et parfois une cause de jeu mécanique qui influe sur la rapidité et le synchronisme de commutation.Furthermore, known breaking devices do not make it possible to achieve simple and reliable multi-pole switches or change-over switches controlled by a common operating handle and obtained by association of two devices arranged side by side respectively in the same direction or in a direction reversed. In the case of a multi-pole switch, the device control unit known cutoff is not suitable for transmitting the force of the handle maneuver to the movable contacts of the phase conductors and obtain a satisfactory synchronous operation. Therefore, the switching device corresponding is designed with a specially adapted reinforced mechanism, which obliges manufacturers to design, manufacture and manage a product and therefore a reference specific. In the case of a change-over switch, the control blocks of the two associated and inverted devices are generally connected by one or more rods of link to transmit the force of the handle from one of the blocks in reverse to the other block. This linkage linkage generates an additional cost, a significant bulk and sometimes a cause of mechanical play which influences the speed and synchronism of switching.
Le but de la présente invention est de pallier les inconvénients mentionnés ci-dessus en proposant un appareil de coupure de conception simple, fiable et peu onéreuse, cet appareil étant pourvu d'un "neutre passant" et comportant un dispositif garantissant une sécurité maximale de fonctionnement afin d'éviter les risques électriques pour le personnel et le matériel. D'une part, quand le neutre est ouvert, il est impossible de forcer la mise en service des phases. D'autre part, le déclenchement du neutre nécessite l'utilisation d'un outil donc ne peut pas résulter d'une erreur de manipulation. Ce déclenchement est, par ailleurs, positif afin d'éviter tout risque de "collage" du contact mobile sur les contacts fixes. De plus, la conception de cet appareil de coupure assure une transmission de mouvement entre la poignée de manoeuvre et les contacts mobiles des conducteurs de phase directe, positive et pratiquement sans jeu. Cette particularité lui permet d'être combiné à d'autres appareils identiques et standard pour réaliser, de manière simple, très fiable et sans surcoût, des interrupteurs multipolaires et des commutateurs-inverseurs.The purpose of the present invention is to overcome the drawbacks mentioned above by proposing a breaking device of simple, reliable and inexpensive design, this apparatus being provided with a "passing neutral" and comprising a device guaranteeing maximum operational safety in order to avoid electrical risks for the staff and equipment. On the one hand, when the neutral is open, it is impossible to force the commissioning of the phases. On the other hand, the triggering of the neutral requires the use of a tool therefore cannot result from a handling error. This trigger is also positive in order to avoid any risk of "sticking" of the movable contact on the fixed contacts. In addition, the design of this cut-off ensures transmission of movement between the operating handle and the movable contacts of direct phase conductors, positive and practically free of play. This feature allows it to be combined with other identical and standard devices to realize, in a simple, very reliable way and without additional cost, switches multipolar and change-over switches.
Ce but est atteint par un appareil de coupure tel que défini en préambule et caractérisé en ce qu'il comporte un dispositif de sécurité agencé pour empêcher, d'une part, le déclenchement de l'organe de coupure du "neutre passant" quand les modules de coupure des conducteurs de phase sont enclenchés et, d'autre part, l'enclenchement des modules de coupure des conducteurs de phase quand l'organe de coupure du "neutre passant" est déclenché, ce dispositif de sécurité comportant un coulisseau couplé audit axe de transmission et mobile en translation dans un plan perpendiculaire au plan de déplacement dudit poussoir entre deux positions stables, une première position correspondant à la position enclenchée des modules de coupure des conducteurs de phase et une seconde position correspondant à la position déclenchée des modules de coupure des conducteurs de phase, le coulisseau et le poussoir étant agencés pour coopérer en butée et se verrouiller mutuellement selon lesdites positions.This object is achieved by a switching device as defined in the preamble and characterized in that it comprises a safety device arranged to prevent, on the one hand, the tripping of the "neutral passing" switching device when the cut of the phase conductors are engaged and, on the other hand, the engagement phase conductor cutoff modules when the cutoff member of the "neutral passing" is triggered, this safety device comprising a slide coupled to said transmission axis and movable in translation in a perpendicular plane in the plane of movement of said pusher between two stable positions, a first position corresponding to the engaged position of the cut-off modules phase conductors and a second position corresponding to the triggered position modules for cutting the phase conductors, the slide and the pusher being arranged to cooperate in abutment and lock each other according to said positions.
Dans une forme de réalisation préférée, le dispositif de sécurité comporte un doigt de verrouillage solidaire du poussoir coopérant avec le coulisseau de manière à ce que, dans la première position stable du coulisseau, le doigt de verrouillage est en butée contre une première face du coulisseau empêchant le déclenchement de l'organe de coupure du "neutre passant" et, dans la seconde position stable du coulisseau, si l'organe de coupure du "neutre passant" est en position déclenchée, le doigt de verrouillage est en butée contre une seconde face du coulisseau perpendiculaire à la première face et empêchant l'enclenchement des modules de coupure des conducteurs de phase avant l'enclenchement de l'organe de coupure du "neutre passant".In a preferred embodiment, the security device comprises a finger integral locking of the pusher cooperating with the slide so that, in the first stable position of the slide, the locking finger is in abutment against a first face of the slide preventing the triggering of the switching off of the "neutral passing" and, in the second stable position of the slide, if the "neutral passing" switching device is in the tripped position, the locking is in abutment against a second face of the slide perpendicular to the first side and preventing the interlocking of the conductor cut-off modules phase before the switching on of the "neutral passing" breaking device.
L'organe de coupure comporte avantageusement un ressort de rappel prévu entre le boítier du bloc de commande et le contact mobile du "neutre passant", ce ressort étant agencé pour maintenir ledit contact mobile en appui contre le poussoir et le ramener de sa position ouverte à sa position fermée.The cut-off device advantageously comprises a return spring provided between the case of the control unit and the movable contact of the "neutral passing", this spring being arranged to maintain said movable contact in abutment against the pusher and bring it back from its open position to its closed position.
Le poussoir peut comporter une tête pourvue d'une empreinte agencée pour recevoir un outil approprié permettant de manoeuvrer le poussoir d'une position stable à l'autre, la tête étant agencée pour être saillante sur le boítier dudit bloc de commande en position enclenchée et enfoncée dans ledit boítier en position déclenchée.The pusher may include a head provided with an imprint arranged to receive a suitable tool for operating the pusher from a stable position to the other, the head being arranged to be protruding on the housing of said control unit in the engaged position and pressed into said housing in the released position.
Dans la forme de réalisation préférée de l'invention, le poussoir comporte un organe de blocage qui le maintient en position déclenchée. Cet organe de blocage peut comporter un ergot latéral prévu sur la tête du poussoir, cet ergot étant agencé pour coulisser dans une découpe correspondante prévue dans le boítier du bloc de commande lors du déplacement du poussoir entre ses deux positions stables et pour buter contre une face intérieure du boítier quand le poussoir est dans sa position déclenchée et après avoir été tourné sur lui-même d'un angle déterminé.In the preferred embodiment of the invention, the pusher comprises a member blocking device which keeps it in the triggered position. This blocking member can have a lateral lug provided on the head of the pusher, this lug being arranged to slide in a corresponding cutout provided in the housing of the block control when moving the pusher between its two stable positions and for abut against an inner face of the housing when the pusher is in its position triggered and after being turned on itself by a determined angle.
Selon une première variante de réalisation, le contact mobile est disposé perpendiculairement au sens de déplacement du poussoir, le ressort de rappel étant situé dans l'axe dudit poussoir.According to a first alternative embodiment, the movable contact is arranged perpendicular to the direction of movement of the pusher, the return spring being located in the axis of said pusher.
Selon une seconde variante de réalisation, le contact mobile est disposé parallèlement au sens de déplacement du poussoir, le ressort de rappel étant situé perpendiculairement à l'axe dudit poussoir.According to a second alternative embodiment, the movable contact is arranged in parallel in the direction of movement of the pusher, the return spring being located perpendicular to the axis of said pusher.
Dans cette seconde variante, le contact mobile est avantageusement porté par un support mobile pourvu d'une rampe inclinée agencée pour coopérer avec ledit poussoir pourvu d'une rampe inclinée d'angle complémentaire, ce support mobile étant prolongé par un bras de guidage en translation agencé pour coulisser sur le "neutre passant".In this second variant, the movable contact is advantageously carried by a mobile support provided with an inclined ramp arranged to cooperate with said pusher provided with an inclined ramp of complementary angle, this movable support being extended by a guide arm in translation arranged to slide on the "neutral passing. "
D'une manière avantageuse, le coulisseau porte sur sa face extérieure au moins deux bossages alignés agencés pour coopérer avec un piston d'un module de contact auxiliaire couplé audit bloc de commande. Cette configuration permet d'intégrer très simplement une supervision de l'état de l'appareil de coupure de manière à pouvoir transmettre les informations à distance à des relais ou à des automates par une liaison électrique.Advantageously, the slide carries on its outer face at least two aligned bosses arranged to cooperate with a piston of a contact module auxiliary coupled to said control unit. This configuration allows to integrate very simply monitoring the state of the switching device so that transmit information remotely to relays or automats by a link electric.
Le but mentionné plus haut est également atteint par un interrupteur multipolaire tel que défini en préambule et caractérisé en ce que les appareils de coupure sont juxtaposés dans un même sens d'orientation, sont couplés à leur axe de transmission et comportent une poignée de manoeuvre commune sur l'un des appareils de telle manière que le basculement de la poignée entraíne l'enclenchement ou le déclenchement simultané de l'ensemble des modules de coupure correspondant aux conducteurs de phase.The above-mentioned aim is also achieved by a multipole switch such as as defined in the preamble and characterized in that the switching devices are juxtaposed in the same direction of orientation, are coupled to their transmission axis and have a common operating handle on one of the devices of such so that the tilting of the handle causes the engagement or simultaneous tripping of all the cut-off modules corresponding to phase conductors.
Ce but est également atteint par un commutateur-inverseur tel que défini en préambule et caractérisé en ce que les appareils de coupure sont juxtaposés dans un sens d'orientation inversé, sont couplés à leur axe de transmission et comportent une poignée de manoeuvre commune sur l'un des appareils de telle manière que le basculement de la poignée entraíne l'enclenchement ou le déclenchement inverse des modules de coupure des conducteurs de phase d'un appareil par rapport à ceux de l'autre appareil.This object is also achieved by a change-over switch as defined in preamble and characterized in that the switching devices are juxtaposed in a reverse direction of orientation, are coupled to their transmission axis and have a common operating handle on one of the devices in such a way that the tilting the handle causes the reverse engagement or tripping of modules for cutting the phase conductors of a device with respect to those of the other device.
La présente invention et ses avantages apparaítront mieux dans la description suivante de deux formes de réalisation, illustrées à titre d'exemple non limitatif, en référence aux dessins annexés, dans lesquels :
- la figure 1 représente une vue en perspective d'un appareil de coupure selon l'invention,
- la figure 2 est une vue en perspective partiellement coupée de l'appareil de la figure 1,
- les figures 3A et 3B sont des vues en perspective partiellement coupées d'une première forme de réalisation du bloc de commande de l'appareil des figures précédentes,
- les figures 4A et 4B sont respectivement une vue en perspective et une vue en plan d'une seconde forme de réalisation du bloc de commande de l'appareil des figures 1 et 2, la figure 4A étant similaire à la figure 3A,
- les figures 5A et 5B sont respectivement une vue en perspective et une vue en plan de la seconde forme de réalisation du bloc de commande, la figure 5A étant similaire à la figure 3B,
- les figures 6A et 6B sont des vues en perspective du bloc de commande correspondant respectivement aux figures 3A, 4A et 3B, 5A, et
- les figures 7 et 8 sont des vues en perspective de deux appareils de coupure selon l'invention couplés respectivement en interrupteur multipolaire et en commutateur-inverseur.
- FIG. 1 represents a perspective view of a switching device according to the invention,
- FIG. 2 is a partially cut perspective view of the apparatus of FIG. 1,
- FIGS. 3A and 3B are partially cut perspective views of a first embodiment of the control unit of the apparatus of the preceding figures,
- FIGS. 4A and 4B are respectively a perspective view and a plan view of a second embodiment of the control unit of the apparatus of FIGS. 1 and 2, FIG. 4A being similar to FIG. 3A,
- FIGS. 5A and 5B are respectively a perspective view and a plan view of the second embodiment of the control unit, FIG. 5A being similar to FIG. 3B,
- FIGS. 6A and 6B are perspective views of the control unit corresponding respectively to FIGS. 3A, 4A and 3B, 5A, and
- Figures 7 and 8 are perspective views of two breaking devices according to the invention coupled respectively as a multipole switch and a change-over switch.
En référence à la figure 1, l'appareil de coupure 1 selon l'invention, tel qu'un
interrupteur ou un interrupteur à fusible, comporte, dans un boítier commun 1', trois
modules de coupure 2, visualisés par des pointillés, correspondant à trois conducteurs
de phase d'une installation électrique et un bloc de commande 3 comportant au moins
une poignée de manoeuvre 4 et un axe de transmission 5. Les modules de coupure 2
comportent chacun d'une manière traditionnelle une borne d'entrée 6 et une borne de
sortie 7, deux contacts fixes portés par les bornes 6, 7 et deux contacts mobiles
établissant ou interrompant le contact électrique entre les deux contacts fixes, au
travers éventuellement d'un fusible de protection. Ces contacts mobiles assurent une
double coupure et sont agencés pour avoir deux positions stables, à savoir une
position fermée dans laquelle le circuit du conducteur de phase correspondant est
fermé et une position ouverte dans laquelle ce circuit est ouvert. Ces contacts mobiles
sont couplés, généralement par un système à came, audit axe de transmission 5 qui
traverse ledit appareil 1, du bloc de commande 3 au dernier module de coupure 2, cet
axe de transmission étant couplé lui-même à la poignée de manoeuvre 4. Il s'agit
généralement d'une poignée du type dit "1/4 de tour" qui assure la commande des
contacts mobiles suite à une rotation de 90°. Dans l'exemple illustré, la poignée de
manoeuvre 4 est disposée en face avant de l'appareil et est couplée à l'axe de
transmission 5 par l'intermédiaire d'un axe de poignée 8 orienté perpendiculairement
audit axe de transmission 5. Dans d'autres variantes de réalisation illustrées en traits
mixtes fins, la poignée de manoeuvre 4 peut être disposée soit sur le côté droit, soit
sur le côté gauche de l'appareil et, dans ce cas, elle est couplée directement à l'axe de
transmission 5 qui débouche dans les côtés du boítier 1'. Cette poignée 4 peut être
disposée de manière adjacente audit boítier 1' ou à distance au moyen d'une rallonge
d'axe 8' dans le cas notamment où l'appareil 1 se trouve dans une armoire électrique
de commande, afin que la poignée soit accessible à l'extérieur de cette armoire.Referring to Figure 1, the switching device 1 according to the invention, such as a
switch or a fuse switch, comprises, in a common housing 1 ', three
En référence à la figure 2, le boítier 1' de l'appareil de coupure 1 est ouvert laissant
apparaítre l'axe de transmission 5, les bornes 6 des modules de coupure des
conducteurs de phase, l'intérieur du bloc de commande 3 et deux modules de contact
auxiliaire 9 disposés au-dessus dudit bloc et décrits plus loin. L'axe de transmission 5
est associé à un mécanisme d'action brusque 10, logé dans le bloc de commande 3, qui
permet d'accumuler l'énergie de manoeuvre dans la première partie de la course de la
poignée 4 et de la restituer en un laps de temps très court à l'axe de transmission 5
commandant la commutation des contacts mobiles desdits modules de coupure 2. Par
conséquent, l'enclenchement et le déclenchement des modules de coupure 2
s'effectuent de manière instantanée. Ce mécanisme 10 comporte, de manière connue,
un vérin 11 dont le corps est monté sur le boítier 1' autour d'un pivot 12 et dont la tige
est articulée à l'extrémité d'un levier 13 solidaire et perpendiculaire à l'axe de
transmission 5. Un ressort de rappel 14 est prévu autour du corps de ce vérin 11 et
agit par poussée sur l'extrémité de la tige du vérin. D'autre part, le bloc de commande
3 comporte deux bornes 15, 75, 16, 76 respectivement d'entrée et de sortie, pour un
conducteur neutre de l'installation électrique. Entre ces deux bornes 15, 75, 16, 76 est
prévu un conducteur fixe 17, 77 appelé "neutre passant" et un organe de coupure 18,
78 détaillé ci-après.Referring to Figure 2, the housing 1 'of the switching device 1 is open leaving
appear the
Les figures 3A et 3B illustrent plus clairement une première forme de réalisation de
l'organe de coupure 18 du "neutre passant" 17 qui comporte deux contacts fixes 19 et
un contact mobile 20 à deux positions stables, à savoir une position fermée dans
laquelle le circuit du conducteur neutre est fermé et une position ouverte dans laquelle
ce circuit est ouvert. Cet organe de coupure 18 comporte un poussoir 21 couplé au
contact mobile 20, ce poussoir étant mobile en translation dans un plan sensiblement
perpendiculaire au contact mobile 20. Un ressort de rappel 22 disposé dans l'axe du
poussoir 21, entre le boítier 1' et le contact mobile 20, est agencé pour ramener ce
contact mobile 20 de sa position ouverte à sa position fermée. Le poussoir 21 est
terminé par une tête 23, mobile en rotation sur elle-même et pourvue d'une fente 24
accessible à l'extérieur du boítier 1' et agencée pour recevoir un outil adéquat, tel
qu'un tournevis qui permet de manoeuvrer ledit poussoir 21 transversalement et ladite
tête 23 en rotation autour de son axe. Un ergot 25 est prévu latéralement sur la tête
23 et constitue un organe de blocage du poussoir 21 en position basse correspondant
à la position ouverte du contact mobile 20. Lors de la translation du poussoir 21 du
haut vers le bas et inversement, l'ergot 25 coulisse dans une découpe correspondante
prévue à cet effet dans le boítier 1' du bloc de commande 3. En position basse, la tête
23 du poussoir 21 est tournée sur elle-même, par exemple, d'un quart de tour pour
amener l'ergot 25 en butée contre une face intérieure dudit boítier empêchant la
remontée dudit poussoir 21 sous l'effet du ressort 22. Dans cette face intérieure du
boítier 1', il peut être prévu une empreinte dans laquelle peut se loger ledit ergot 25 de
manière à éviter tout risque de déblocage sous l'effet, par exemple, de vibrations. La
tête 23 du poussoir 21 est agencée pour être saillante sur le boítier 1' quand le
poussoir 21 est en position haute correspondant à la position fermée du contact
mobile 20 et enfoncée dans le boítier 1' quand le poussoir 21 est en position basse, le
contact mobile 20 étant ouvert. Cette tête 23 constitue de ce fait un organe de
visualisation directe de la position de l'organe de coupure 18 du "neutre passant" 17.FIGS. 3A and 3B illustrate more clearly a first embodiment of
the breaking
L'appareil de coupure 1 selon l'invention est avantageusement équipé d'un dispositif
de sécurité agencé pour empêcher, d'une part, le déclenchement de l'organe de
coupure 18 du "neutre passant" 17 quand les modules de coupure 2 des conducteurs
de phase sont enclenchés et, d'autre part, l'enclenchement des modules de coupure 2
des conducteurs de phase quand l'organe de coupure 18 du "neutre passant" 17 est
déclenché. Ce dispositif de sécurité comporte un coulisseau 30 couplé à l'axe de
transmission 5 par une liaison pignon-crémaillère, le pignon 31 étant prévu sur ledit
axe et la crémaillère 32 sur ledit coulisseau. Le coulisseau 30 est agencé pour se
déplacer transversalement dans un plan perpendiculaire au plan de déplacement du
poussoir 21, entre deux positions extrêmes correspondant aux positions enclenchée et
déclenchée des modules de coupure 2 des conducteurs de phase. La position
enclenchée est représentée par la figure 3A, dans laquelle le coulisseau 30 est avancé à
côté du poussoir 21. Ce dernier est pourvu d'un doigt de verrouillage 33 positionné
latéralement sous la tête 23 et agencé pour buter contre la face supérieure 30a dudit
coulisseau 30. Dans cette position, il est impossible de déplacer le poussoir 21 vers le
bas et donc de déclencher l'organe de coupure 18 du "neutre passant" 17 quand les
modules de coupure 2 des conducteurs de phase sont enclenchés. La position
déclenchée est représentée par la figure 3B, dans laquelle le coulisseau 30 est éloigné
du poussoir 21 et libère ainsi le doigt de verrouillage 33 qui autorise le déplacement
du poussoir 21 vers le bas et donc le déclenchement de l'organe de coupure 18 du
"neutre passant" 17. Dans cette position et si le contact mobile 20 du "neutre passant"
est ouvert, le doigt de verrouillage 33 bute contre l'extrémité 30b du coulisseau 30,
perpendiculaire à la face supérieure 30a, empêchant la translation du coulisseau 30
vers le poussoir 21 et donc l'enclenchement des modules de coupure 2 des
conducteurs de phase tant que l'organe de coupure 18 du "neutre passant" 17 est
déclenché. Ce dispositif de sécurité remplit une fonction d'interverrouillage entre les
modules de coupure 2 des conducteurs de phase et l'organe de coupure 18 du "neutre
passant" pour éviter tout risque électrique pour le personnel. Le coulisseau 30
intervient également dans la transmission du mouvement de la poignée 4 audit axe de
transmission 5. Il est couplé, au travers d'un évidement central 30', à l'axe de poignée
8 par une liaison pignon-crémaillère, le pignon 34 étant prévu à l'extrémité de l'axe de
poignée 8 et la crémaillère 35 (voir figure 2) étant prévue sur une face latérale 30c du
coulisseau perpendiculairement à la crémaillère 32. On obtient ainsi une transmission
de mouvement positive à renvoi d'angle entre la poignée 4 et l'axe de transmission 5
quel que soit l'emplacement de la poignée 4 sur le boítier 1'. Par ailleurs, le coulisseau
30 porte sur sa face supérieure 30a quatre bossages ou cames 36, alignés deux à deux
dans le sens de la translation du coulisseau, disposés de part et d'autre de l'évidement
central 30' et agencés pour commander les modules de contact auxiliaire 9 illustrés en
figure 2. Ces modules de contact auxiliaire 9 sont généralement du type "tout ou rien"
et sont prévus pour être montés sur la face frontale du boítier 1' de l'appareil de
coupure 1 au dessus du bloc de commande 3 au moyen de pattes de fixation 37 qui
s'engagent dans des logements 38 prévus à cet effet. Ils comportent un poussoir ou
piston 39 central de commande qui traverse le boítier 1' par un orifice adéquat 40
pour être actionné par les bossages 36 lors de la translation du coulisseau 30 entre les
deux positions extrêmes enclenchée et déclenchée. Ces modules de contact auxiliaire
9 permettent notamment de transmettre à distance l'état dudit appareil de coupure 1.The switching device 1 according to the invention is advantageously equipped with a device
security arranged to prevent, on the one hand, the triggering of the
cut-off 18 of the "neutral passing" 17 when the cut-
Les figures 4A, 4B et 5A, 5B illustrent une seconde forme de réalisation de l'organe
de coupure 78 du "neutre passant" 77 qui comporte, comme dans l'exemple
précédent, deux contacts fixes 79, un contact mobile 80 à deux positions stables
commandé par un poussoir 81. La différence de conception par rapport à la réalisation
décrite en référence aux figures 3A et 3B réside dans la disposition parallèle du
contact mobile 80 par rapport au sens de déplacement du poussoir 81, le contact
mobile 80 étant porté par un support 90 mobile en translation perpendiculairement à
ce poussoir. Le poussoir 81 actionne le support mobile 90 par l'intermédiaire d'une
rampe inclinée 86, 91 prévue respectivement sur ces deux pièces en contact,
présentant des angles d'inclinaison complémentaires et constituant un renvoi d'angle.
L'enfoncement du poussoir 81 entraíne l'éloignement du support mobile 90 ouvrant le
contact mobile 80. La remontée du poussoir 81 entraíne le rapprochement du support
mobile 90 fermant le contact mobile 80 sous l'action d'un ressort de rappel 82 disposé
entre le boítier 1' et ledit contact mobile 80. Le support mobile 90 réalisé en matière
diélectrique est prolongé par un bras de guidage 92 dont une partie de la section
présente une forme en L, ce bras étant disposé en parallèle du "neutre passant" 77 et
agencé pour coulisser sur ce dernier assurant ainsi un guidage en translation. Ce
support mobile 90 est également guidé transversalement par une protubérance 87 en
forme de L renversé prévue sur le poussoir 81 et orientée perpendiculairement au bras
de guidage 92 pour buter contre le flanc de ce bras. Cette protubérance 87 a
également un rôle d'indexage pour la position de montage du support 90 par rapport à
son repère 94.FIGS. 4A, 4B and 5A, 5B illustrate a second embodiment of the
Comme dans l'exemple précédent, le poussoir 81 est terminé par une tête 83, mobile
en rotation sur elle-même et pourvue d'une fente 84 accessible à l'extérieur du boítier
1' et agencée pour recevoir un outil adéquat, tel qu'un tournevis qui permet de
manoeuvrer ledit poussoir 81 transversalement et ladite tête 83 en rotation autour de
son axe. Un ergot 85 est prévu latéralement sur la tête 83 et constitue un organe de
blocage du poussoir 81 en position basse correspondant à la position ouverte du
contact mobile 80 dont le fonctionnement a été décrit dans l'exemple précédent. La
tête 83 du poussoir 81 est agencée pour être saillante sur le boítier 1' quand le
poussoir 81 est en position haute correspondant à la position fermée du contact
mobile 80 et enfoncée dans le boítier 1' quand le poussoir 81 est en position basse, le
contact mobile 80 étant ouvert. Cette tête 83 constitue de ce fait un organe de
visualisation directe de la position de l'organe de coupure 78 du "neutre passant" 77.
Ce poussoir 81 comporte par ailleurs deux rails de guidage axiaux 88, 89 prévus en
périphérie à 180° destinés à se loger dans des rainures correspondantes prévues dans
le boítier (non représenté) de manière à le guider dans son mouvement de translation
suivant son axe. La forme de ce poussoir 81 est particulière étant donné qu'elle est le
résultat d'une étude d'allégement et donc de réduction de matière. Bien entendu
d'autres formes pourraient être prévues.As in the previous example, the
Comme dans l'exemple précédent, l'appareil de coupure 1 est équipé d'un dispositif de
sécurité agencé pour empêcher, d'une part, le déclenchement de l'organe de coupure
78 du "neutre passant" 77 quand les modules de coupure 2 des conducteurs de phase
sont enclenchés et, d'autre part, l'enclenchement des modules de coupure 2 des
conducteurs de phase quand l'organe de coupure 78 du "neutre passant" 77 est
déclenché. Les pièces de ce dispositif de sécurité similaires aux figures 3A et 3B
portent les mêmes références. On retrouve le coulisseau 30 couplé à l'axe de
transmission 5 par une liaison pignon 31 - crémaillère 32. Des repères 31' et 32'
prévus respectivement sur le pignon 31 de l'axe de transmission 5 et sur la crémaillère
32 du coulisseau 30 permettent d'indexer la position de montage de ces pièces. Ce
coulisseau 30 est agencé pour se déplacer transversalement dans un plan
perpendiculaire au plan de déplacement du poussoir 81, entre deux positions extrêmes
correspondant aux positions enclenchée et déclenchée des modules de coupure 2 des
conducteurs de phase. La position enclenchée est représentée par les figures 4A et 4B,
dans lesquelles le coulisseau 30 est avancé à côté du poussoir 81. Ce dernier est
pourvu d'un doigt de verrouillage 93 positionné latéralement sous la tête 93 et agencé
pour buter contre la face supérieure 30a dudit coulisseau 30. Dans cette position, il
est impossible de déplacer le poussoir 81 vers le bas et donc de déclencher l'organe de
coupure 78 du "neutre passant" 77 quand les modules de coupure 2 des conducteurs
de phase sont enclenchés. La position déclenchée est représentée par les figures 5A et
5B, dans lesquelles le coulisseau 30 est éloigné du poussoir 81 et libère ainsi le doigt
de verrouillage 93 qui autorise le déplacement du poussoir 81 vers le bas et donc le
déclenchement de l'organe de coupure 78 du "neutre passant" 77. Dans cette position
et si le contact mobile 80 du "neutre passant" est ouvert, le doigt de verrouillage 93
bute contre l'extrémité 30b du coulisseau 30, perpendiculaire à la face supérieure 30a,
empêchant la translation du coulisseau 30 vers le poussoir 81 et donc l'enclenchement
des modules de coupure 2 des conducteurs de phase tant que l'organe de coupure 78
du "neutre passant" 77 est déclenché. Ce dispositif de sécurité remplit pleinement une
fonction d'interverrouillage entre les modules de coupure 2 des conducteurs de phase
et l'organe de coupure 18 du "neutre passant" pour éviter tout risque d'incidents
électriques pour le personnel. As in the previous example, the switching device 1 is equipped with a device for
safety device arranged to prevent, on the one hand, the tripping of the breaking
Les figures 6A et 6B illustrent uniquement le bloc de commande 3 entouré du boítier
1' sur lequel la tête 23, 83 du poussoir 21, 81 appartenant à l'organe de coupure 18,
78 du "neutre passant" est visible. Comme exposé précédemment, cette tête 23, 83
permet de visualiser l'état du "neutre passant". Sur la figure 6A, la tête 23, 83 est
saillante ce qui correspond à la position enclenchée de l'organe de coupure 18, 78 du
"neutre passant". De même, on aperçoit l'ergot de blocage 25, 85 solidaire de la tête
23, 83 ainsi que la découpe correspondante prévue dans ledit boítier 1'. Sur la figure
6B, cette tête 23, 83 est enfoncée dans le boítier 1' ce qui correspond à la position
déclenchée dudit organe de coupure 18, 78. La tête 23, 83 a été tournée d'un quart de
tour et l'ergot de blocage 25, 85 a disparu à l'intérieur du boítier 1' pour buter contre
une face intérieure de ce dernier afin de bloquer le poussoir 21, 81 en position basse.Figures 6A and 6B illustrate only the
Les figures 7 et 8 illustrent des variantes d'utilisation des appareils de coupure 1 selon
l'invention dans lesquelles ils sont couplés entre eux, dans le même sens ou dans un
sens inversé, pour constituer respectivement un commutateur multiple de plus de trois
pôles, par exemple six ou huit, appelé interrupteur multipolaire 50 en figure 7 ou un
commutateur-inverseur 60 en figure 8. L'interrupteur multipolaire 50 est utilisé dans le
cas, par exemple, d'une alimentation en bitension d'un équipement ou d'une
alimentation simultanée de plusieurs circuits, pouvant présenter au total six
conducteurs de phase, avec ou sans conducteur neutre. Cet interrupteur multipolaire
50 est réalisé simplement avec deux appareils de coupure 1A et 1B standard, tels que
définis ci-dessus, pourvus chacun d'un bloc de commande 3 standard, disposés côte à
côte dans le même sens et reliés au niveau de leur axe de transmission 5 par un axe de
couplage carré (non représenté) similaire à la rallonge d'axe 8' utilisée pour la poignée
4 en référence à la figure 1, et de longueur adaptée. Une seule poignée 4 est prévue
sur l'un 1A des appareils pour enclencher ou déclencher simultanément l'ensemble des
modules de coupure 2 des conducteurs de phase. Cette solution technique est
fonctionnellement très satisfaisante étant donné que la chaíne cinématique entre la
poignée 4 et les modules de coupure 2 est très courte, de rapport unitaire et
présentant un faible jeu de fonctionnement. Chaque appareil 1A, 1B conserve son
organe de coupure du "neutre passant" pour lequel le changement de position est
étroitement lié à la position des modules de coupure 2 grâce au dispositif de sécurité
décrit précédemment. Le commutateur-inverseur 60 est utilisé pour commuter d'une
source d'alimentation électrique à une autre à partir d'une seule poignée de
manoeuvre. Ceci est le cas, par exemple, si un équipement alimenté par le réseau de
distribution publique doit être alimenté, en cas de défaillance de ce dernier, par une
alimentation de sauvegarde telle qu'un groupe électrogène. Ce commutateur-inverseur
60 est réalisé simplement avec deux appareils de coupure 1A et 1B standard, tels que
définis ci-dessus, pourvus chacun d'un bloc de commande 3 standard, disposés côte à
côte mais tête-bêche c'est-à-dire tournés de 180° et reliés au niveau de leur axe de
transmission 5 par un axe de couplage carré (non représenté). Les bornes de sortie 7
de l'appareil inversé 1B sont destinées à être utilisées comme bornes d'entrée et ses
bornes d'entrée 6 sont destinées à être couplées directement aux bornes de sortie 7 de
l'appareil 1A. Une seule poignée est prévue sur l'un 1A des appareils et permet lors de
l'enclenchement des modules de coupure 2 de l'appareil 1A le déclenchement des
modules de coupure 2 de l'appareil 1B et inversement, les axes de transmission 5
correspondants étant inversés.Figures 7 and 8 illustrate alternative uses of the switching devices 1 according to
the invention in which they are coupled together, in the same direction or in a
reverse direction, to constitute respectively a multiple switch of more than three
poles, for example six or eight, called
La description montre clairement que l'invention atteint les buts fixés. Notamment, l'appareil de coupure tel que décrit présente les avantages suivants :
- un gain d'encombrement grâce au "neutre passant" prévu dans le bloc de commande 3,
- une ouverture positive du "neutre passant" 17, 77 grâce à l'organe de coupure 18, 78,
- une visualisation de l'état du "neutre passant" par la tête 23, 83 du poussoir 21, 81,
- un interverrouillage entre la commutation du "neutre passant" 17, 77 et celle des modules de coupure 2 des conducteurs de phase,
- la possibilité de réaliser des appareils à commande frontale, latérale gauche ou latérale droite, directe ou à distance, à partir d'appareils de coupure de série comportant un bloc de commande standard tel que décrit précédemment et avec pour unique accessoire une rallonge d'axe 8',
- la possibilité de réaliser, à moindre coût, un interrupteur multipolaire ou un
commutateur-inverseur par l'association de deux appareils de coupure de série
comportant un bloc de commande standard tel que décrit précédemment et avec pour
unique accessoire un axe de couplage carré reliant lesdits axes de
transmission 5.
- space saving thanks to the "passing neutral" provided in the
control unit 3, - a positive opening of the "neutral passing" 17, 77 thanks to the cut-
18, 78,off member - a display of the state of the "neutral passing" through the
23, 83 of thehead 21, 81,pusher - an interlock between the switching of the "neutral passing" 17, 77 and that of the breaking
modules 2 of the phase conductors, - the possibility of making devices with front, left side or right side, direct or remote control, from series cut-off devices comprising a standard control block as described above and with a single axis extension 8 '
- the possibility of producing, at a lower cost, a multipole switch or a change-over switch by the association of two series breaking devices comprising a standard control block as described above and with the sole accessory a square coupling axis connecting said transmission axes 5.
Claims (13)
- A cut-out unit (1) for an electrical installation, such as a switch or circuit breaker, comprising at least two live wires and a neutral wire, this unit comprising, in a common housing (1'), at least two cut-out modules (2) corresponding to the live wires of the said installation, disposed adjacently and each provided with two fixed contacts associated with two moving contacts, these moving contacts having two stable positions, i.e. a closed position in which the circuit of the corresponding live wire is closed and an open position in which this circuit is open, these positions corresponding respectively to the engaged and disengaged positions of the said unit, and, a control unit (3) of the said moving contacts, disposed adjacent to the one of these modules (2) and comprising at least one operating handle (4) and at least one transmission shaft (5) coupled firstly to the said handle and secondly to the said moving contacts, this transmission shaft (5) being designed to pass through the said cut-out modules (2), this unit comprising, in the control unit (3), a fixed wire (17, 77) called the "conducting neutral" and corresponding to the neutral wire of the said installation, the control unit (3) comprising a cut-out element (18, 78) of the said "conducting neutral" (17, 77), this cut-out element (18, 78) comprising a moving contact (20, 80) disposed between two fixed contacts (19, 79) on the path of the said "conducting neutral" (17, 77) and a moving thrustor (21, 81) designed to control the said moving contact (20, 80) and having two stable positions, an engaged position in which the moving contact (20, 80) is closed and a disengaged position in which the moving contact (20, 80) is open, characterised in that it comprises a safety device (30, 33, 93) designed prevent firstly the disengagement of the cut-out element (18, 78) of the "conducting neutral" when the cut-out modules (2) of the live wires are engaged and, secondly, the engagement of the cut-out modules (2) of the live wires when the cut-out element (18, 78) of the "conducting neutral" is disengaged, this safety device comprising a slide (30) coupled to the said transmission shaft (5) and moveable in translation in a plane perpendicular to the plane of displacement of the said thrustor (21, 81) between two stable positions, a first position corresponding to the engaged position of the cut-out modules (2) of the live wires and a second position corresponding to the disengaged position of the cut-out modules (2) of the live wires, the slide (30) and the thrustor (21, 81) being designed to cooperate by abutting and to be mutually locked according to the said positions.
- A unit according to Claim 1, characterised in that the safety device comprising a locking pin (33, 93) integral with the thrustor (21, 81) cooperating with the slide (30) so that, in the first stable position of the slide, the locking pin (33, 93) abuts against a first face (30a) of the slide (30) preventing the disengagement of the cut-out element (18, 78) of the "conducting neutral" and, in the second stable position of the slide, if the cut-out element (18, 78) of the "conducting neutral" (17, 77) is in the disengaged position, the locking pin (33, 93) abuts against a second face (30b) of the slide (30) perpendicular to the first face (30a) and preventing the engagement of the cut-out modules of the live wires before the engagement of the cut-out element (18, 78) of the "conducting neutral".
- A unit according to Claim 1, characterised in that the cut-out element (18, 78) comprises a return spring (22, 82) provided between the housing (1') of the control unit (3) and the moving contact (20, 80) of the "conducting neutral" (17, 77), this spring (22, 82) being designed to keep the said moving contact (20, 80) resting between the thrustor (21, 81) and to return it from its open position to its closed position.
- A unit according to Claim 1, characterised in that the thrustor (21, 81) comprises a head (23, 83) provided with an indentation (24, 84) designed to receive an appropriate tool which allows the thrustor (21, 81) to be manoeuvred from one stable position to the other, the head being designed to project over the housing (1') of the said control unit (3) in the engaged position and submerged in the said housing (1') in the disengaged position.
- A unit according to Claim 4, characterised in that the thrustor (21, 81) comprises an arresting element (25, 85) which keeps it in the disengaged position.
- A unit according to Claim 5, characterised in that the arresting element comprises a lateral tappet (25, 85) provided on the head (23, 83) of the thrustor rod, this tappet being designed to slide in a corresponding cut-out provided in the housing (1') of the control unit upon the displacement of the thrustor (21, 81) between its two stable positions and to rest against an inner face of the housing (1') when the thrustor (21, 81) is in its disengaged position and after having be turned on itself by a determined angle.
- A unit according to Claim 3, characterised in that the moving contact (20) is disposed perpendicularly to the direction of movement of the thrustor (21), the return spring (22) being situated in the axis of the said thrustor (21).
- A unit according to Claim 3, characterised in that the moving contact (80) is disposed parallel to the direction of movement of the thrustor (81), the return spring (82) being situated perpendicularly to the axis of the said thrustor (81).
- A unit according to Claim 8, characterised in that the moving contact (80) is borne by a moving support(90) provided with an inclined ramp (91) designed to cooperate with the said thrustor (81) provided with an inclined ramp (86) having a complementary angle.
- A unit according to Claim 9, characterised in that the moving support (90) is extended by an arm (92) for translational guidance to slide on the "conducting neutral" (77).
- A unit according to Claim 1, characterised in that the slide (30) bears at least two aligned humps (36) on its outer face that are designed to cooperate with a piston (39) of an auxiliary contact module (9) coupled to the said control unit (3).
- A multipolar switch (50) obtained by associating two cut-out units (1A, 1B) each provided with a control unit (3) according to one of the preceding Claims, characterised in that the cut-out units (1A, 1B) are juxtaposed in the same direction, are coupled at their transmission shaft (5) and comprise a mutual operating handle (4) on one of the units (1A) so that the transfer of the handle (4) brings about the simultaneous engagement or disengagement of the assembly of the cut-out modules (2) corresponding to the live wires.
- A change-over switch (60) obtained by associating two cut-out units (1A, 1B) each provided with a control unit (3) according to one of Claims 1 to 11, characterised in that the cut-out units (1A, 1B) are juxtaposed in an opposite direction, are coupled at their transmission shaft (5) and comprise a mutual operating handle (4) on one of the units (1A) so that the transfer of the handle (4) brings about the engagement or the reverse disengagement of the cut-out modules (2) of the live wires of one device (1A) with respect to those of the other device (1B).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9609986 | 1996-08-05 | ||
FR9609986A FR2752084B1 (en) | 1996-08-05 | 1996-08-05 | SWITCHING APPARATUS FOR AN ELECTRICAL INSTALLATION, MULTIPOLAR SWITCH AND INVERTER SWITCH PROVIDED WITH SAID APPARATUS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0823720A1 EP0823720A1 (en) | 1998-02-11 |
EP0823720B1 true EP0823720B1 (en) | 2003-03-05 |
Family
ID=9494908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19970440063 Expired - Lifetime EP0823720B1 (en) | 1996-08-05 | 1997-08-04 | Switchgear for an electric installation, multipolar switch and reversing switch with such a switchgear |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0823720B1 (en) |
DE (1) | DE69719419D1 (en) |
FR (1) | FR2752084B1 (en) |
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FR2876217B1 (en) * | 2004-10-06 | 2007-04-20 | Socomec Sa Sa | ELECTRICAL CUTTING APPARATUS WITH FRONTAL OR SIDE CONTROL |
FR2898212B1 (en) * | 2006-03-03 | 2008-05-16 | Socomec Sa Sa | AUTOMATED CONTROL MODULE FOR AN ELECTRICAL CUTTING APPARATUS AND AN ELECTRICAL CUTTING APPARATUS EQUIPPED WITH SUCH A CONTROL MODULE |
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CN107615429B (en) | 2015-04-13 | 2019-10-15 | Abb瑞士股份有限公司 | Electric switch |
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FR3054925B1 (en) * | 2016-08-02 | 2020-05-15 | Socomec | CONTROL MODULE FOR MODULAR ELECTRICAL SWITCHING APPARATUS AND OBTAINED MODULAR ELECTRICAL SWITCHING APPARATUS |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1866363U (en) * | 1962-08-17 | 1963-01-31 | Stotz Kontakt Gmbh | INSTALLATION SELF-SWITCH WITH NEUTRAL DISCONNECTOR TO BE ACTUATED INDEPENDENTLY OF THE SELF-SWITCH. |
ES163607Y (en) * | 1969-12-31 | 1971-08-16 | Telemeccanica Elettrica Officine Meccaniche Riuni. | AN INTERRUPTABLE TYPE TERMINAL WITH AN AUXILIARY CONTACT. |
CH547003A (en) * | 1972-07-07 | 1974-03-15 | Landis & Gyr Montlucon | NEUTRAL DISCONNECTING DEVICE FOR A TWO- OR MULTI-POLE DISCONNECTING DEVICE. |
FR2513006B1 (en) * | 1981-09-17 | 1986-05-02 | Telemecanique Electrique | MODULAR MULTIPLE POLE SWITCHING DEVICE |
FR2551915B1 (en) * | 1983-09-08 | 1986-08-29 | Hager Electro | IMPROVEMENTS RELATING TO CIRCUIT BREAKERS WITH OSCILLATING HANDLE CARRYING A FUSE CARTRIDGE AND FORMING A CAM FOR THE CONTROL OF AN AUXILIARY CIRCUIT |
US5138296A (en) * | 1991-12-12 | 1992-08-11 | Allen-Bradley Company, Inc. | Electric switch |
DE4305746C2 (en) * | 1993-02-25 | 1996-05-23 | Peterreins Schalttechnik Gmbh | Load switch arrangement and housing for receiving this load switch arrangement |
DE4312594C2 (en) * | 1993-04-17 | 1997-12-18 | Peterreins Schalttechnik Gmbh | Switching arrangement for switching the phases and the neutral conductor of load switches |
-
1996
- 1996-08-05 FR FR9609986A patent/FR2752084B1/en not_active Expired - Fee Related
-
1997
- 1997-08-04 EP EP19970440063 patent/EP0823720B1/en not_active Expired - Lifetime
- 1997-08-04 DE DE69719419T patent/DE69719419D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0823720A1 (en) | 1998-02-11 |
DE69719419D1 (en) | 2003-04-10 |
FR2752084A1 (en) | 1998-02-06 |
FR2752084B1 (en) | 1998-10-09 |
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