Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
  • H01H21/02—Details
  • H01H21/18—Movable parts; Contacts mounted thereon
  • H01H21/22—Operating parts, e.g. handle
  • H01H21/30—Operating parts, e.g. handle not biased to return to a normal position upon removal of operating force
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H3/00—Mechanisms for operating contacts
  • H01H3/54—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts
  • H01H3/58—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts using friction, toothed, or other mechanical clutch
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H1/00—Contacts
  • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
  • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
  • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
  • H01H21/02—Details
  • H01H21/18—Movable parts; Contacts mounted thereon
  • H01H21/36—Driving mechanisms
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
  • H01H71/10—Operating or release mechanisms
  • H01H71/1009—Interconnected mechanisms
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
  • H01H71/10—Operating or release mechanisms
  • H01H71/50—Manual reset mechanisms which may be also used for manual release
  • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
  • H01H83/12—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H2235/00—Springs
  • H01H2235/01—Spiral spring
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
  • H01H71/10—Operating or release mechanisms
  • H01H71/50—Manual reset mechanisms which may be also used for manual release
  • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
  • H01H71/527—Manual reset mechanisms which may be also used for manual release actuated by lever making use of a walking beam with one extremity latchable, the other extremity actuating or supporting the movable contact and an intermediate part co-operating with the actuator

Definitions

• the present invention relates to the general field of electrical switchgear and more particularly to systems for operating the break in such devices.
• This type of installation includes one or more electrical breaking poles such as trigger switch-disconnectors, triggerable inter-fuses, tripping switches and circuit breakers.
• the main functions of these poles are:
• the electric switchgear is equipped with a control system connected to the electric breaking poles from which the power cut is controlled.
• the control system represents the most important safety element of the installation because it ensures the level of performance and reliability of the electrical switchgear as well as the interface between a user and the electrical part of power the device or devices powered by electric current.
• the control system allows the user to switch the cut-off pole (s) from an open position (power cut) to a closed position (power-up) and vice versa by means of a manual control handle or an electric control.
• the control system Independently of this normal operation (ie opening and closing of the cut-off devices by the user), the control system must be able to switch the cut-off pole (s) from the closed position to the open position without requiring the direct intervention of the user. 'a user, whatever the conditions use of the system such as when a holding force is applied at the same time on the control handle.
• This automatic tilting from the closed position to the open position is mainly used to perform safety functions such as emergency stop, thermal overload, differential fault, short circuit, etc.
• the currently available control systems are not suitable for reliably performing an automatic tilting of the closed position to the open position in particular because they do not provide sufficient mechanical energy to enable the actuation of power cutoff devices or fail to meet certain important safety criteria such as independent switching of operating conditions or high speed in the tilting maneuver.
• the object of the present invention is to propose a new control system design which makes it possible, in priority and reliable manner, to switch the electrical breaking poles between the closed position and the open position.
• an accumulation mechanism comprising a movable control handle between a cut-off position and a closed position
• a second connecting rod pivoting about an axis of rotation intended to be connected to one or more breaking poles
• the second connecting rod being connected to the first connecting rod by a sliding connection so that the movement of the first link between the first position and the second position, respectively between the second position and the first position, causes the pivoting of the second connecting rod about the axis of rotation between an opening position of the cutoff pole or poles and a closing position of the breaking poles or poles respectively between a closed position of the at least one cut-off pole and an open position of the cut-off pole or poles
• a trigger mechanism capable of releasing the first point of rotation of the first link and exerting a displacement force on the first link in the vicinity of the said first point of rotation so as to move the first link between the second position and a third position when said first link pivots about a second point of rotation, the movement of the first link between the second position and the third position causing a pivoting of the second link about the axis of rotation between the closed position of the cutoff poles and the opening position of the cutoff poles.
• the triggering of the priority toggling to the open position can be achieved with a large lever that amplifies the effort transmitted by the triggering control system at the breaking poles, and without loss of energy because the tilting of the first link is achieved without having to counteract the resistance of the accumulation mechanism.
• the priority tilting in the open position is “free trip” (or “trip free”), that is to say that it can be controlled independently of any external mechanical influence and in particular even if a force Retainer is applied to the control handle of the system. It is therefore not necessary to provide a disengagement of the manual control of the system for triggering the priority switch to the open position.
• the accumulation mechanism is able to release the second point of rotation of the first link when the first point of rotation of said first link is released by the second trigger mechanism. in order to lead the pivoting of the first connecting rod around a third point of rotation corresponding to the sliding connection connecting the second connecting rod to said first connecting rod when the second connecting rod arrives in its open position, the pivoting of the first connecting rod around the third point of rotation resulting in the moving the control handle in an intermediate position between the cut position and the closed position of said handle.
• control system to trigger the accumulation mechanism comprises an internal carriage connected to the control handle and an external carriage connected to the first link, the system further comprising a bias spring adapted to move the carriages internal and external over a short distance when the accumulation mechanism releases the second point of rotation of the first rod so as to cause the pivoting of the first rod around the third point of rotation and the movement of the control handle in an intermediate position between the cut-off position and the closed position of said handle, thus making it possible to observe the triggered position of the system by simple visual inspection of the position of the control handle.
• the first accumulation mechanism comprises a first spring able to exert, after compression, a force on the first connecting rod when it is pivoted around the first point of rotation between the first position and the second position of said first rod and vice versa and in that the triggering mechanism comprises a second spring adapted to exert, after compression, a force on the first connecting rod during its displacement between the second position and the third position when said first connecting rod pivots around the second point of rotation.
• the first spring and the second spring make it possible to obtain similar torque curves, which makes it possible to have similar trigger speeds in both mechanisms and thus to ensure the safety of the cut in all situations.
• the latter comprises manual control means for releasing the first point of rotation of the first link.
• tripping control system of the invention comprises an electromechanical control means for releasing the first point of rotation of the first link.
• control means requires very little energy to control the tilting in the open position.
• the accumulation mechanism comprises an inner carriage connected to the control handle and an outer carriage connected to the first link, the inner carriage sliding in the outer carriage when moving. of the control handle between the cutoff position and the closed position, the first spring being interposed between the inner carriage and the outer carriage and in that the triggering control system comprises a locking element adapted to lock the inner carriage. with the external carriage after the movement of the first link between the second position and the third position so as to allow the resetting of the second spring of the trigger mechanism by avoiding compressing the first spring.
• the subject of the present invention is also an e-electric breaking device comprising one or more electric breaking poles equipped with a movable contactor, characterized in that said The apparatus further comprises a tripping control system according to the invention, a cut-off shaft connecting each movable contactor of the at least one switching pole to the rotation axis of the second link.
• FIG. 1A is a schematic view showing a triggering control system in a breaking position according to an embodiment of the invention
• FIG. 1B shows a movable contactor in the cut-off position of the system of FIG. 1A
• FIG. 2A is a schematic view showing a triggering control system in a closed position according to an embodiment of the invention
• FIG. 2B shows a movable contactor in the closed position of the system of FIG. 2A
• FIG. 3A is a schematic view showing a triggering control system in a tripped and unplugged breaking position according to an embodiment of the invention
• FIG. 3B shows a movable contactor in the tripped breaking position of the system of FIG. 3A
• FIG. 4 is a schematic perspective exploded view of the triggering control system of FIGS. 1A to 3A,
• FIG. 5 is a schematic exploded perspective view of the accumulation mechanism represented in FIG. 4;
• FIGS. 6 and 7 are perspective views of the accumulation mechanism once mounted
• FIG. 8 is a simplified schematic view showing the position of the first and second links when the triggering control system is in a cut-off position
• FIG. 9 is a simplified schematic view showing the position of the first and second links when the triggering control system is actuated to a closed position
• FIG. 10 is a sectional view of the accumulation mechanism when the tripping control system is in an off position
• FIG. 11 is a sectional view of the accumulation mechanism when the control handle of the triggering control system is actuated to a closed position, with the spring of the compressed accumulation mechanism,
• FIG. 12 is a sectional view of the accumulation mechanism when the triggering control system is in a closed position
• FIG. 13 is a sectional view of the accumulation mechanism when the control handle of the triggering control system is actuated to an open position, with the spring of the compressed accumulation mechanism,
• FIG. 14A is an exploded schematic perspective view of the trigger mechanism shown in FIG. 4,
• FIG. 14B is a perspective view of the trigger mechanism once mounted
• FIG. 15 is a schematic side view showing a part of the constituent elements of the triggering control system of FIGS. 1A to 3A when the latter is in a closed position
• FIG. 16 is a schematic side view showing a part of the constituent elements of the triggering control system of FIGS. 1A to 3A when it is at the beginning of a safety cut-off trip,
• FIG. 17 is a schematic side view showing a part of the constituent elements of the triggering control system of FIGS. 1A to 3A when the latter is in a triggered off position,
• FIGS. 18 to 20 are simplified schematic views showing the position of the first and second links of the triggering control system when the latter is respectively in a closed, cut-off and cut-off and unplugged position
• FIG. 21 is a simplified schematic view showing the position of the first and second connecting rods when the tripping control system is in a triggered off position
• FIG. 22 is a schematic view showing a trigger control system in a breaking position according to another embodiment of the invention.
• FIGS. 1A and 1B illustrates a switchgear 1 according to one embodiment of the invention.
• the apparatus 1 comprises a trigger control system 100 in accordance with one embodiment and a plurality of cut-off poles 10.
• the cut-off poles 10 correspond to cut-off devices such as switches, switches or fuse switch disconnectors.
• each breaking pole 10 is connected to the tripping control system 100 by a cut-off shaft 101 which is secured, on the one hand, to a connecting rod of the system 100 described hereinafter. details, and on the other hand, to each movable contactor cleavage poles corresponding here to a set of movable contacts 11, the shaft 101 constituting the axis of rotation of the movable contacts 11.
• the rotation of the shaft 101 which is controlled by the system 100 makes it possible to move the movable contacts 11 of each breaking pole between an open position (FIG. 1A) in which the movable contacts 11 are placed at a distance from the fixed contacts 13 of the breaking device (FIG. 1B) and a closed position ( Figure 2A) in which the movable contacts 11 are in contact with the fixed contacts 13 of the breaking poles ( Figure 2B), and vice versa.
• the control of the opening and closing of the breaking poles 10, and vice versa is carried out by means of a control handle 102 movable between a first position shown in FIG. at the opening position of the breaking poles 10 and a second position represented in FIG. 2A which corresponds to the closing position of the breaking poles 10.
• FIG. 1 shows the various elements of the trigger control system 100 according to one embodiment of the invention.
• the system 100 includes:
• the accumulation mechanism 200 comprises:
• the inner carriages 210 and outer 220 are slidably mounted relative to each other, the carriage guides 250 directing the relative sliding between the two carriages.
• the storage spring 230 is interposed between the two carriages. More specifically, the spring 230 is held on the spring guide 240 which is itself fixed on two fixing lugs 221 and 222 respectively present at both ends of the external carriage 220. At rest, the spring 230 extends between the two legs 221 and 222 as illustrated in Figure 10.
• the inner carriage 210 comprises two pairs of support lugs 211 and 212 each respectively disposed on each side of the tabs 221 and 222 ( Figures 5, 6 and 7).
• the support legs 211 and 212 are intended to abut on one of the ends of the spring 230 to compress it during the displacement of the inner carriage in the external carriage during the opening and / or closing operations of the cutoff apparatus 10.
• the internal carriage 210 comprises in its upper part rack teeth 213 which are intended to cooperate with the pinions 261 of the control pin 260.
• the control pin 260 also comprises a housing 262 for receiving the axis 1020 of the handle 102.
• the first pivoting rod 600 comprises an arm 610 pivotable about a first point of rotation PI formed by an axis 611 which is retained by the second trigger mechanism 300.
• the arm 610 further comprises at its upper end an axis 612 crimped on said upper end and intended to be engaged in a slot 201 formed in the external carriage 220.
• the axis 612 constitutes a second point of rotation P2 around which the arm of the connecting rod 600 can pivot when the axis 611 is released by the second trigger mechanism as explained in detail below.
• the connecting rod 600 comprises a second arm 620 connected to the first arm 610 by a spar 630.
• the second arm is able to pivot, on the one hand, around the point of rotation P1 when the axis 611 is retained by the second trigger mechanism 300 and, secondly, around the second point of rotation P2 when the axis 611 is released by the second trigger mechanism, the arm 620 having an axis 622 crimped on its upper end and intended to be engaged with light 202 formed in the outer carriage.
• the second pivoting rod 700 comprises a body 701 comprising a light 720 intended to receive an end of the shaft 101 for controlling the opening and closing of the cut-off poles 10.
• the light 720 includes slots 721 for cooperating with teeth 1010 present on the outer surface of the shaft 101 ( Figures 1B and 2B).
• the center 722 of the light 720 coincides with the center 1011 of the shaft 101.
• the second link 700 further comprises a pin 710 present on the body 701 in a position offset from the position of the light 720.
• the pin 710 is intended to be engaged in an oblong groove 613 formed in the arm 610 of the connecting rod 600 and slide in it during the movements of the rod 600 so as to achieve a sliding connection and articulated between the rods 600 and 700.
• Figure 8 shows the connecting rods 600 and 700 and the external carriage 220 in a position corresponding to the open position of the switchgear as shown in Figures 1A and 1B.
• the outer carriage 220 has moved in the direction A, which caused the pivoting of the first link 600 around the first point of rotation PI which itself has caused the pivoting of the second connecting rod 700 around the center 722 of the light 720 by sliding the pin 710 in the oblong groove 613, the center 722 corresponding to the axis of rotation of the second link 700.
• the pivoting of the rod 700 causes the rotation of the shaft 101 (not shown in Figure 9) an angle sufficient to allow the closing of the breaking poles as shown in Figures 2A and 2B.
• Figures 10, 11 and 12 show the relative movements of the internal carriages 210 and external 220 to move from the open position to the closed position of the breaking poles by triggering the movement of the outer carriage.
• Figure 10 shows the relative position between the inner carriages 210 and external 220 corresponding to the position of the first connecting rod 600 and the second connecting rod 700 shown in Figure 8 (open position of the breaking poles).
• Figure 12 shows the relative position between the inner carriages 210 and external 220 corresponding to the position of the first link 600 and the second link 700 shown in Figure 9 (closed position of the poles).
• the first latching pawl 270 makes it possible to momentarily block the displacement of the external carriage 220 in the direction A indicated in FIG. 11 so as to allow, as a first step, the compression of the accumulation spring 230 (FIG. 11) and, in a second step, the triggering of the movement of the external carriage 220 in the direction A under the effect of the action of the spring 230 ( Figure 12). More precisely, as illustrated in Figure 10, when the first pawl 270 is in the low position, it bears against the flanges 223 formed in the upper part of the outer carriage 220, which allows to retain the outer carriage.
• the inner carriage 210 comprises in its upper part two ramps 214 which are intended to lift the first latch pawl 270 during the displacement of the inner carriage 210 in the direction A as shown in FIG. 11 and to gradually disengage the pawl 270 from the flanges 223. until the movement of the external carriage is released as shown in FIG.
• FIGS. 12, 13 and 10 show the relative movements of the inner and outer carriages making it possible to pass from the closed position to the opening position of the cut-off poles by triggering the movement of the external carriage
• FIG. 10 showing the relative position between the carriages 210 and 220 corresponding to the position of the connecting rods 600 and 700 shown in FIG. 8 (open position of the breaking poles)
• FIG. 12 showing the relative position between the carriages 210 and 220 corresponding to the position of the rods 600 and 700 shown in Figure 9 (closed position of the breaking poles).
• the second latch pawl 280 is intended to momentarily block the movement of the external carriage 220 in the direction B indicated in FIG. 13 so as to allow, as a first step, the compression of the accumulation spring 230 (FIG. 13) and, in a second step, the triggering of the movement of the external carriage 220 in the direction B under the effect of the action of the spring 230 ( Figure 10). More specifically, as illustrated in Figure 12, when the second pawl 280 is in the low position, it bears against flanges 224 formed in the upper part of the outer carriage 220, which allows to retain the external carriage.
• the inner carriage 210 comprises in its upper part two ramps 215 which are intended to lift the first rocker pawl 280 during the displacement of the inner carriage 210 in the direction B as indicated in FIG. 13 and to progressively release the pawl 280 from the flanges 224. until the movement of the external carriage is released as shown in FIG.
• the triggering mechanism 300 comprises a hook 310 able to pivot about a axis 311 which is held in a fixed position in the triggering control system 100.
• the hook 310 comprises first and second symmetrical arms 312 and 313 interconnected and comprising respectively at one of their ends. an orifice 3122, 3132 in which the axis 311 passes.
• the triggering mechanism 300 also comprises a guide 320 on which is mounted a spring 330, the spring 330 being abutted, on the one hand, against a first end 321 of the guide 320 via a washer 323 engaged with the guide 320 and, secondly, against a slide 340.
• the guide 320 is pivotally mounted relative to the hook 310, the guide 320 comprising for this purpose an orifice 325 in which passes l 311.
• the slide 340 comprises a through hole 341 in which is engaged the axis 611 of the rod 600, the axis 611 being further housed in an oblong slot 324 formed in the guide 320 in order to not interfere with the movement of the slider 340 along the guide 320.
• the trigger mechanism 300 further comprises a lever 350 which is pivotally attached to the 310 by means of an axle 351 which is inserted into both ports 3121 and 3131 formed respectively in the arms 312 and 313 of the hook 310 and in a passage 352 formed in the lever 350.
• the axis 351 comprises in its central part a triggering catch 3150 which, when locked, allows the hook 310 to be held in position. his potion shown in Figure 15.
• the triggering mechanism is intended to keep the connecting rod 600 in a first position (FIG. 15) in which the axis 611 is retained by flanges 3120 and 3130 respectively present on the arms 312 and 313 of the hook 310.
• the connecting rod 600 In this first position, the connecting rod 600 is able to pivot about the point of its first point of rotation P1 while the spring 330 is kept in compression.
• the axis 611 of the connecting rod 600 is released from the flanges 3120 and 3130 when the trip control module 400 exerts a pressing force Fp on the lever 350 in order to unlock the triggering catch 3150, which makes it possible to lower the hook 310 relative to the axis 611 and allow its disengagement of the flanges 3120 and 3130.
• the spring 330 applies a force on the flanges 3120 and 3130.
• This force induces a counterclockwise rotation torque on the hook 310.
• the triggering hook 3510 produces on the hook 310 a reaction torque opposite to that generated by the action of the spring 330 on the flanges 3120 and 3130.
• the hook 310 is kept in equilibrium in its position of FIG. that the attachment 3510 is effective, that is to say locked.
• the attachment 3510 is said to be “stable” to minimize the effort Fp. As soon as the attachment 3510 is unlocked, the reaction torque produced by the latter disappears and causes the hook 310 to rotate.
• the bearing force Fp is very low compared to the force of the spring 330. This feature makes it possible to reduce the mechanical power that the trigger module 400 must provide.
• Trip control 400 is here formed of a coil actuator (not shown) which allows to exert a pressing force on the lever.
• any other type of actuator, electromechanical or manual, can be used to exert a pressing force on the lever 350.
• the opening operation of the opening of the breaking poles described here corresponds to a safety function (for example in case of emergency stop, thermal overload, differential fault, short circuit, etc. .) which can be implemented without requiring the direct intervention of an operator.
• FIGS. 18 and 19 show diagrammatically the relative movements between the first link 600, the second link 700 and the trigger mechanism 300.
• the triggering operation is implemented when the triggering control system is in the position illustrated in FIG. 18 which corresponds to:
• the triggering to force the opening of the breaking poles is controlled by the trigger control module 400 (not shown in FIG. 15) which exerts a pressing force Fp on the lever 350 which is secured to the hook 310.
• the support force Fp will allow to lower the arms 312 and 313 of the hook 310 of the second trigger mechanism 300 so that the flanges 3120 and 3130 will pass below the 611 axis.
• the spring 330 will push on said axis via the slider 340, which causes the pivot rod 600 to pivot about the second point of rotation P2 as illustrated in FIG.
• the guide 320 will also pivot upwards about the axis 311.
• the connecting rod 600 At the end of the triggering operation, that is to say when the triggering control system 100 is in the so-called "triggered" position, the connecting rod 600 is in the position as shown in FIGS. , 19 and 21.
• the pivoting of the connecting rod 600 about the second point of rotation P2 makes it possible to pivot the connecting rod 700 around the center 722 of the light 720 by sliding the pin 710 in the oblong groove 613, the connecting rod 700 thus causing the rotation of the shaft 101 secured to the blade 11 of each cutoff pole so as to place each cutoff pole connected to the tripping control system in the open position as shown in Figure 1B.
• the tripping control system of the invention can at any time trigger the opening of the poles of cut, and this reliably because the complete trigger, that is to say the sufficient pivoting of the connecting rod 700 to allow the opening of the connected breakpoint or poles, is ensured in all conditions of use of the system such as when a retaining force is applied to the control handle.
• the spring 230 of the accumulation mechanism and the spring 330 of the triggering mechanism are dimensioned to generate the same torque curve and, therefore, similar speeds for the opening. manual closing and for automatic tripping of the opening of the breaking poles.
• the trigger control system of the invention may be provided with means for placing the control handle in a particular position when the trigger control system 100 is in the triggered position.
• a pusher 360 is mounted on an arm 326 of the guide 320. More specifically, the pusher 360 comprises two tabs 361 and 362. interconnected. The pusher 360 is supported on the arm 326 of the guide 320 by means of a connecting piece 363 which actuates the tabs 361 and 362 towards the pawl 280 ( Figure 15).
• the pivoting of the guide 320 causes the upward movement of the pusher 360.
• the ends 3610 and 3620 respectively of the tabs 361 and 362 then come into contact with the liquor 280 and push it upwardly to release the external carriage 220.
• the inner carriages 210 and external 220 will move a short distance (a few millimeters for example) to the open position of the cutoff pole or poles which causes, as illustrated in FIGS. 3A and 17, a displacement of the control handle 102 in an intermediate position, the so-called position "Unhooked" between its open position ( Figure 1B) and its closed position ( Figure 2B).
• the triggered position of the trigger control system of the invention can thus be detected by simple observation of the unhooked position of the control handle.
• the triggering control system of the invention further comprises a latch 370 fixed on the arm 326 of the guide 320.
• pivoting of the guide 320 causes the rear portion 371 of the latch 370 to tilt upwards as shown in FIGS. 16 and 17.
• the portion Rear 371 locks the inner carriages 210 and outer 220 between them. It is thus possible to reset the system after the automatic trigger operation.
• FIG. 22 illustrates a switchgear device 40 comprising a triggering control system 50 identical to the system 100 described above. Cut-off poles 60 are placed on one side of the system 50 while cut-off poles 70 are placed on the other side of the system 100.
• the symmetrical architecture of the rod 600 described above, c that is to say a rod having two arms interconnected, is advantageously used.
• the movable members 63 of the breaking poles 60 are actuated by the first arm 610 of the connecting rod 600 via the connecting rod 700 (not shown in FIG. 22) and a breaking shaft 51 connected to both the connecting rod 700 (FIG. not shown in Figure 22) and movable members 63.
• the movable members 73 of the breaking poles 70 are actuated by the second arm 620 of the rod 600 via a connecting rod identical to the connecting rod 700 in sliding connection with the arm 620 (not shown in FIG. 22) and a cut-off shaft 53 connected to both said connecting rod (not shown in FIG. 22) and to the movable members 73.
• the breaking poles 60 and 70 are actuated by a single and even trigger control system.

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• Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

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• 2014
  • 2014-11-21 FR FR1461281A patent/FR3029009B1/fr active Active
• 2015
  • 2015-11-19 EP EP15804174.9A patent/EP3221875B1/de active Active
  • 2015-11-19 WO PCT/FR2015/053144 patent/WO2016079444A1/fr active Application Filing
  • 2015-11-19 US US15/528,662 patent/US10020142B2/en active Active
  • 2015-11-19 CN CN201580063013.6A patent/CN107112170B/zh active Active
  • 2015-11-19 ES ES15804174T patent/ES2699309T3/es active Active

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