EP1211706A1 - Hochspannungsschaltgerät mit Doppelbewegung - Google Patents

Hochspannungsschaltgerät mit Doppelbewegung Download PDF

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Publication number
EP1211706A1
EP1211706A1 EP01410154A EP01410154A EP1211706A1 EP 1211706 A1 EP1211706 A1 EP 1211706A1 EP 01410154 A EP01410154 A EP 01410154A EP 01410154 A EP01410154 A EP 01410154A EP 1211706 A1 EP1211706 A1 EP 1211706A1
Authority
EP
European Patent Office
Prior art keywords
contact
arcing
contact member
permanent
contacts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01410154A
Other languages
English (en)
French (fr)
Other versions
EP1211706B1 (de
Inventor
Vincent Schneider Electric Ind. SA Chareyron
Pierre Schneider Electric Ind. SA Chevrier
Georges Schneider Electric Ind. SA Gaudart
Fabrice Schneider Electric Ind. SA Jaillet
Mitsuru Schneider Electric Ind. SA Toyoda
Michel Schneider Electric Ind. SA Vinatier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Transmission and Distribution SA
Original Assignee
Schneider Electric High Voltage SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schneider Electric High Voltage SA filed Critical Schneider Electric High Voltage SA
Publication of EP1211706A1 publication Critical patent/EP1211706A1/de
Application granted granted Critical
Publication of EP1211706B1 publication Critical patent/EP1211706B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/904—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism characterised by the transmission between operating mechanism and piston or movable contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
    • H01H33/78—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor wherein the break is in gas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H2033/028—Details the cooperating contacts being both actuated simultaneously in opposite directions
    • 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
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric

Definitions

  • the invention relates to a double high voltage electrical switchgear movement of contacts.
  • switchgear on load, switches, disconnectors or circuit breakers for high voltage and in particular for very high voltage, comprising two separable aligned contacts and a control mechanism causing displacement in translation of one of the contacts relative to the other.
  • an electrical switchgear comprising a sealed envelope filled with dielectric gas.
  • a first and a second movable contacts are positioned in the envelope and are normally engaged one in the other to allow the passage of current.
  • a mechanism with connecting rods and crank allows to simultaneously drive the two contacts in opposite directions with respect to the envelope, with equal speeds. The separation speed is higher than in switchgear only allowing movement of only one of the two contacts.
  • the connecting rod mechanism and crank ensures a mechanical connection between the first and the second at all times contact so the position of the second contact is always related to the position of the first contact and that of the drive mechanism.
  • the power required is important because it is necessary to train at all moment the two moving masses formed by the two contacts.
  • this device does not have arcing contacts, which makes it inapplicable to switchgear high performance.
  • the rods of the deflection mechanism pose a problem space inside the waterproof envelope.
  • a high voltage electric switch comprising a sealed envelope filled with a dielectric gas and containing a member mobile contact and a fixed contact member.
  • the mobile contact member includes a permanent contact and an arcing contact integral with each other, as well as a nozzle in insulating material fixed to permanent contact.
  • the mobile contact member is driven axially in translation in the envelope by a drive mechanism.
  • the organ of fixed contact comprises a permanent contact which is fixed relative to the envelope, and a arc contact sliding axially in a sliding contact making the electrical connection with fixed permanent contact.
  • a rack and pinion transmission mechanism allows to transmit to the sliding arc contact of the fixed contact member, the translational movement of the movable contact member.
  • the switch has a first contact member and a second contact member.
  • the first contact member comprises a permanent contact, an arcing contact and a nozzle made of insulating material forming a monobloc assembly mu directly by a drive mechanism.
  • the second contact member has a permanent contact and an arcing contact integral with each other.
  • the movement of the arc contact of the first contact member is transmitted to the second contact member via a transmission mechanism comprising a movement reversing lever, a first connecting rod articulated on the nozzle and on the lever, and a second connecting rod articulated on the second contact member and lever.
  • Mass in motion is important since it includes the two arcing contacts and the two permanent contacts.
  • the drive mechanism must be dimensioned accordingly.
  • One of the trials of Critical cut is a low current capacitive current cut test. For cut off such current, the distance between the arcing contacts must increase very quickly to from their separation, while to cut short-circuit currents, it suffices reach a contact distance in less than half a period of the current, and wait for the current to pass through zero. The device does not allow optimization of kinetic energy in this case.
  • Document US Pat. No. 5,578,806 describes a switch comprising a first member contact and a second contact member.
  • the first contact member includes a permanent contact, an arcing contact and a nozzle of insulating material forming an assembly monobloc moved directly by a drive mechanism.
  • the second organ of contact comprises a permanent contact and an arcing contact integral with each other.
  • the movement of the arcing contact of the first contact member is transmitted to the second member contact via a transmission mechanism comprising a toothed wheel transmission, a rack fixed to the nozzle and meshing with the toothed wheel, and a connecting rod articulated on the one hand at a point on the circumference of the wheel and on the other hand on the second contact body.
  • the transmission mechanism is non-linear, which makes it possible to impose a low speed on the second contact member at the start of movement, during the separation of permanent contacts, to rapidly increase the speed when the arcing contacts separate, then slow the speed down opening. It thus becomes possible to cut the capacitive currents without spending a too much motor energy.
  • the device does not optimize kinetic energy of the system.
  • an apparatus comprising a first member for contact consisting of a permanent contact, an arcing contact and an insulating nozzle forming a one-piece assembly directly driven by a drive mechanism, and a second contact member comprising a fixed permanent contact, an arcing contact and a dielectric screen.
  • a transmission mechanism connects the nozzle to the arcing contact of the second contact body.
  • This transmission mechanism includes a reversing lever movement, a connecting rod connecting the lever to the arcing contact and a rod fixed to the nozzle and sliding in a straight groove of the lever.
  • the transmission mechanism is no linear in the sense that the ratio between the speed of the nozzle and the speed of the arcing contact of the second contact member is not constant.
  • the nozzle speed remains much higher than the arcing contact speed of the second contact member, while the mass in motion secured to the nozzle, which also includes the first contact member, is much greater than the mass in movement integral with the arcing contact of the second contact member.
  • the kinetic energy of the mechanism is not optimized during opening.
  • Document FR 2 491 675 describes a circuit breaker of the self-blowing and self-compression type comprising a first contact member consisting of a permanent contact, an arcing contact and an insulating nozzle forming a one-piece driven assembly directly by a drive mechanism, and a second contact member comprising a fixed permanent contact and an arcing contact.
  • a transmission mechanism connects the nozzle to the arcing contact of the second contact member.
  • the first organ of contact forms a cylinder opening towards the nozzle by small diameter conduits, and closed on the opposite side by a fixed piston, so as to constitute a blowing chamber of variable volume. When the first contact member moves, the piston enters the blowing chamber and the volume of the chamber decreases.
  • the movement of the first contact member causes an increase in pressure in the blowing chamber.
  • the second arcing contact releases the orifice of the nozzle.
  • the volume of the blowing chamber continues to decrease and the gases escape of the blowing chamber through the orifice, helping to extinguish the incipient arc between the arcing contacts.
  • the blowing must imperatively continue in order to continuously bring the gases relatively costs contained in the blowing chamber, and this until the arc is extinguished. In others In other words, the action of the piston is necessary during the entire opening movement.
  • Speed of the first contact member with respect to the piston must therefore be sufficient for the pressure in the blowing chamber remains higher than the pressure at the nozzle.
  • the report of speeds remains constant during the opening stroke, which is well suited to the needs of this type of circuit breaker, and in particular the need to blow continuously by compressing the blowing chamber.
  • teaching this document is difficult transposable to a circuit breaker comprising a compression piston.
  • the invention therefore aims to remedy the drawbacks of the state of the art, so as to propose a high voltage switchgear with compression effect, which is efficient and which allows to obtain a fast and reliable opening, in a volume restricted and with reduced maneuvering energy.
  • the reliability of the device is due to the fact that the kinematic link provided by the mechanism transmission is permanent, so that the position of the first contact member and the position of the operating mechanism give a true picture of the position of the second arcing contact.
  • the gear ratio imposed between the closed position and the first fleeting position indexed allows rapid acceleration of the first contact member, which is the heaviest, at the very beginning of the opening, before the separation of the arcing contacts. It therefore allows devote all available energy to driving the piston, which works for compress the gas contained in the compression volume.
  • the discharge valve opens, allowing also the pressure build-up of the arc expansion volume.
  • the pressure in the arcing expansion volume is already high, which is favorable for breaking capacitive currents. Indeed, we know that the disruptive tension between two electrodes brought to different potentials in a given gaseous medium, i.e.
  • the minimum voltage necessary for an electric arc to appear between the electrodes in the gaseous medium considered is a function of the product of the pressure of the gas by the distance between the electrodes, given by Paschen's law, and that beyond of a minimum value, this function increases with the product of the pressure by the distance.
  • the gear ratio imposed during the passage of the first contact member through the second indexed fugitive position makes it possible to significantly reduce the energy of the mobile assembly at a time when the speed acquired by the piston is sufficient and when it is useful to rapidly increase the distance between the arcing contacts.
  • a first mobile assembly constituted by the masses in movement integral with the first contact and on the other hand a second mobile assembly constituted by the masses in movement integral with the second arcing contact, it can be seen that the first moving part has a mass M 1 higher than the mass M 2 of the second moving part. This is explained by the fact that the first contact is secured on the one hand to the nozzle and on the other hand to a part of the drive control mechanism.
  • the gear ratio imposed during the passage of the first contact member through the third fugitive indexed position allows to devote all the kinetic energy again available at the end of the opening stroke at the first contact member linked to the piston, so as to favor the blowing of the arc at the nozzle, which is important for cut off the overload currents, and also makes it possible to replace with fresh gases and clean the heated and dirty gases during the cut-off.
  • the second indexed position P 5 is located between the fugitive position for separating the first and the second arcing contact P 3 and the open position. This choice makes it possible to precisely optimize the kinetic energy of the device at the location of the travel of the contacts chosen for the extinction of the arcs linked to the capacitive currents.
  • the maximum value is greater than 1.5.
  • the increase in speed the relative of the arcing contacts is thus even more favored.
  • the second permanent contact member and the second arcing contact member are integral with one another.
  • this solution has the effect of globally increasing the moving mass of the system, compared to a solution where only the second arcing contact would be mobile.
  • this additional mobile mass is not harmful in view of the desired effects.
  • the best efficiency of the mechanism is obtained for a speed ratio V 2 / V 1 equal to the mass ratio of the moving parts on either side of the transmission mechanism.
  • the ratio M 1 / M 2 will be very high, and it will become difficult in practice to produce a transmission mechanism whose structure is simple and which ensures such a maximum transmission ratio, while ensuring low values of the transmission ratio at the start and at the end of the race.
  • the first contact member and the nozzle together form a first movable piece of mass M 1
  • the second permanent contact member and the second arcing contact piece form a second movable piece of mass M 2
  • the gear ratio checks the relationship: 0.8 M 1 M 2 ⁇ V 2 V 1 ⁇ 1,2 M 1 M 2 .
  • This mechanism has the advantage of allowing, if necessary, a straight guide of the rod.
  • the nozzle has a neck forming a first gas circulation path from the arc expansion volume to an expansion volume inside the enclosure, this first path being closed at least partially by the second contact. arcing as long as the first contact member is between the closed position and a fourth indexed fugitive position P 6 located between the fugitive separation position of the first and second arcing contacts P 3 and the open position.
  • the apparatus comprises a second gas circulation path between the expansion volume and the expansion volume of the enclosure, provided with a delay valve which remains closed as long as the first contact member is between the closed position and a fifth indexed position P 4 , located between the fugitive position for separating the first and second arcing contacts P 3 and the open position.
  • the two gas circulation paths are in competition, which makes it possible to increase the gas blowing rate.
  • the valve makes it possible to precisely determine the start of the opening of this gas circulation path, after the separation of the arcing contacts.
  • the time interval elapsing between the separation of the arcing contacts and the opening of the valve is used to continue the pressure build-up in the expansion volume caused jointly by the piston and the arc drawn between the arcing contacts at their separation.
  • the fourth indexed position P 6 is located between the fifth indexed position P 4 and the open position.
  • the opening of the second path precedes the opening of the first path during the opening sequence of the mechanism.
  • the second indexed position P 5 is located near the fourth indexed position P 6 and the fifth indexed position P 4 .
  • the first arcing contact comprises a tube and the gas circulation path goes through this tube.
  • a high voltage circuit breaker in this case a circuit breaker intended for voltages exceeding 36kV, immersed in an enclosure 10 filled with a gas with high dielectric strength, for example sulfur hexafluoride SF 6 and comprising a first contact member 12 driven by an operating mechanism 14, a nozzle 16 integral with the first contact member 12 and a second contact member 18 kinematically connected to the nozzle 16 by means of a transmission mechanism of the movement 20.
  • the enclosure 10 makes it possible to define a geometrical axis of fixed reference 22, which constitutes an axis of translation for the moving parts.
  • the first contact member 12 is composed of a cylindrical tubular permanent contact 24 and an arcing contact 26 disposed coaxially with the interior of the permanent contact 24.
  • the arcing contact 26 is also tubular and is provided at its free end with a plug-in clamp 28 composed of contact fingers arranged in a corolla.
  • the permanent contact 24 is itself provided with a range cylindrical plug-in end 30 allowing its cooperation with the second contact member 18.
  • the arcing contact 26 and the permanent contact 24 are integral with one of the other and jointly driven by the operating mechanism 14.
  • the nozzle 16 is constituted by a piece of insulating material allowing degassing in presence of an electric arc, for example in Teflon. It is fixed on an internal surface of permanent contact 24 and is interposed between the cylindrical racking range end 30 of the permanent contact and the clamp 28 of the arcing contact. The nozzle forms a neck 32 separating two recesses 34, 36.
  • the end racking range 30 of the permanent contact 24 is extended by a cylindrical outer peripheral surface of a sliding contact wall 38 which slides axially inside a cylindrical collector 40 fixed relative to the enclosure 10 serving as support and guide for the contact member 12, the collector 40 being provided with a sliding contact ring 41 ensuring electrical contact between the permanent contact 24 and the collector 40 during the translation of the permanent contact 24.
  • the cylindrical collector 40 delimits an internal compression volume 42 hermetically closed by a cylinder head 44.
  • the permanent contact 24 is provided, at its axial end penetrating into the collector 40, a piston 46 which separates the compression volume 42 from an arc expansion volume 48 radially delimited by the cylindrical wall 38 of the permanent contact 24 and, at its axial end opposite the piston 46, via the nozzle 16.
  • the piston 46 is provided with a discharge valve 50 opening as soon as the compression volume 42 is in overpressure with respect to the arc expansion volume 48.
  • the piston 46 is integral with the permanent contact 24 and arcing contact 26 and provides a current path between the contact 24 and the arcing contact 26.
  • the arcing contact 26 forms a tube 52 which passes through the piston 46 and cylinder head 44, and protrudes inside a delimited expansion volume 54 by the sealed enclosure 10.
  • the trigger volume 54 occupies all the space available in the enclosure, up to the recess 36.
  • the end of the tube 52 is fixed to a rod 56 constituting the output member of the drive mechanism 14.
  • Lateral openings 58 are formed at the end of the tube 52, so that a circulation path of gas 60 between the arc expansion volume 48 and the expansion volume 54, passing through inside the tube 52.
  • a sealing sleeve 61 integral with the cylinder head 44 acting as a delay valve hermetically covers the openings 58 in the closed position shown in Figure 4.
  • the cylinder head 44 is provided with a filling valve 62 and a drain valve 64.
  • the filling valve 62 ensures communication from the expansion volume 54 to the volume of compression 42, when the compression volume 42 is in depression by relative to the expansion volume 54.
  • the drain valve 64 ensures the communication of the compression volume 42 towards expansion volume 54, when the pressure difference between the compression volume 42 and the expansion volume 54 is greater than a threshold of emptying determined by a return spring 66 of the valve 64.
  • the second contact member 18, visible in detail in Figures 3 and 5, consists a second permanent contact 70 and a second arcing contact 72 integral with one of the other.
  • the permanent contact 70 is formed by an openwork tubular metal part, of which a free end is provided with a contact clip 74 in the shape of a corolla.
  • the contact permanent 70 slides axially in a fixed collector 74 provided with a sliding contact 76 ensuring the electrical contact between the permanent contact 70 and the collector 74 during the translation of the permanent contact 74.
  • the second arcing contact 72 forms a finger metallic 78 to the inside diameter of the nozzle neck, extended by a metallic rod 80.
  • the arcing contact 72 and the permanent contact 70 are fixed to each other by via a diametral bar 82 also ensuring the passage of current between the two contacts 70, 72.
  • the movement transmission mechanism 20 is composed of a pivoting cam of return 84 cooperating with an axial end of the rod 80 of the arcing contact 72 and with a transmission link 86.
  • the cam 84 pivots about a geometric pivot axis fixed 89, perpendicular to the reference axis 22.
  • the link 86 is articulated on the cam 84 and on a crown 88 fitted to an axial end of the nozzle 16.
  • the end axial of the arcing contact 72 is provided with a roller 90 having the function of a slide and cooperating with a track formed by a curvilinear groove 92 in the shape of a bill hook, made in cam 84.
  • An end of stroke return spring 94 recalls bar 82 and the second contact member 18 towards the closed position.
  • the apparatus operates as follows.
  • the clamp 74 of the second permanent contact 70 encloses the outer periphery 30 of the first permanent contact 24 and provides a path for current passing through the first collector 40, the sliding contact 41, the first contact permanent 24, the clamp 74, the second permanent contact 70, the sliding contact 76 and the second collector 76.
  • the finger 78 forming the end of the second arcing contact 72 penetrates deeply into the first arcing contact 26 and plugs the tube 52.
  • the clamp 28 of the first arcing contact 26 grips finger 78 and forms a second current path between the first and second collectors.
  • Finger 78 plugs the end of the tube 52 formed by the arcing contact 26, so that the gas column contained in the tube 52 is closed.
  • the finger 78 also occupies the entire interior space of the neck 32, so that it closes also at this level at least partially the arc expansion volume 48.
  • the operating mechanism 14 drives the first member contact 12 continuously and without stopping the closed position shown in FIGS. 4 and 5 in the open position shown in FIGS. 1 to 3.
  • the movement of the first member contact 12 is transmitted to the second contact member 18 via the nozzle 16 and the transmission mechanism 20.
  • the shape of the cam 84 is such that at first, the second contact member 18 remains practically stationary, so that all the energy of the drive mechanism 14 serves to accelerate the first contact member 12.
  • the ratio V 2 / V 1 is close to zero, and in in all cases less than 0.5, as long as the first contact member is between the closed position and a first indexed fugitive position designated by P 1 on the diagram.
  • P 1 the first contact member 12 reaches a position P 2 of separation of the permanent contacts 24, 70, located approximately 10% of its total stroke.
  • the cam 84 has pivoted a few degrees, so that the transmission ratio of the speeds V 2 / V 1 increases very quickly to exceed 1.
  • the relative speed of separation of the arcing contacts which is equal to V 1 + V 2 , is then very high.
  • the ratio V 2 / V 1 remains greater than 1.5 for approximately 0.5 to 3 ms, allowing very rapid separation of the arcing contacts 26, 72, and goes through a maximum when the first contact member reaches a position P 5 .
  • M 1 is the mass of the moving parts integral with the first contact member 12, that is to say as a first approximation, the sum of the masses of the permanent contact 24, of the arcing contact 26, of the rod 56, of the nozzle 16 and of the crown 88
  • M 2 is the mass of the moving parts integral with the second contact member 18, namely the permanent contact 70, the arcing contact 72 and the bar 82.
  • the transmission cam 84 is shaped in such a way that when the first contact member has crossed approximately 50% of its opening stroke, the speed ratio V 2 / V 1 again becomes less than 1 and rapidly decreases. When the first contact member passes through a fugitive position P 7 , the gear ratio again becomes less than 0.5, to cancel out at about 90% of the opening stroke.
  • the initial movement allows to allocate all the energy delivered by the drive mechanism 14 to the first contact member 12 and thus quickly initiate a pumping effect.
  • the discharge valve 50 opens and the gas located in the compression volume 42 begins to penetrate in the arc expansion volume 48.
  • the pressure in the arc expansion volume 48 then begins to increase since the contact finger 78 simultaneously closes the flow path 60 through the interior of the tube 52 of the arcing contact and the flow path passing through the neck 32.
  • the current path passing through the permanent contacts 24, 70 is cut.
  • the secondary current path passing through the arcing contacts 26, 72 remains because the finger 78 is still partially inserted in the clamp 28, so that no electric arc is drawn between the permanent contacts 24, 70 before that the position P 3 of separation of the arcing contacts is not reached.
  • the pressure in the arc expansion volume 48 continues to increase. From position P 3 , the continuation of the opening essentially depends on the type of current flowing through the circuit breaker at the time of opening. We will successively distinguish the opening on a short-circuit current, the opening on an overload current and the opening on a capacitive current.
  • the piston 46 compresses the gas located in the compression volume 42 until it reaches the emptying threshold, beyond which the emptying valve 64 opens, allowing evacuation to the expansion volume 54 of the gas retained in the compression volume 42, so that the continuation of the opening movement is not hampered.
  • the arc goes out when the current passes through zero.
  • the pressure in the arc expansion volume 48 does not decrease quickly enough to allow the discharge valve 50 to open again.
  • the arc expansion volume 48 and the compression volume 42 therefore remain separate until the end of the opening.
  • the speed ratio V 2 / V 1 becomes again less than 1 and rapidly decreases.
  • the gas contained in the expansion volume escapes through the interior of the arc contact tube to the expansion volume. As soon as the arcing contact has descended beyond the neck, beyond the point P 6 , the gas also escapes towards the bottom of the nozzle 16. The arc is extinguished when the current flows through zero. If the energy released by the arc was not very large, the pressure in the arc expansion volume 48 decreases rapidly, allowing the discharge valve 50 to reopen. When the first contact member has crossed about 50% of its opening stroke, the speed ratio V 2 / V 1 becomes less than 1 and decreases rapidly. In this phase, the available energy of the drive mechanism 14 therefore serves to accelerate again in a privileged manner the first contact member 12 and therefore the movement of the piston 46 in the compression volume 42. Fresh and clean gases are therefore again directed from the compression volume 42 to the arc expansion volume 48 and to the arc contacts 26, 72, until the end of the opening, making it possible to avoid a re-ignition of the arc between arcing contacts.
  • the point P 5 corresponding to the maximum of the speed ratio V 2 / V 1 is located between the point P 3 of separation of the arcing contacts and the open position.
  • this point corresponds to a speed ratio greater than 1, which makes it possible to favor the increase in speed of the lightest contact member, namely the second contact member 18, which does not support the nozzle 16 , with respect to the displacement of the heaviest contact member, namely the first contact member 12.
  • This bias makes it possible, as has been shown previously, to maximize the relative speed V 1 + V 2 of the mobile assembly for a given overall mechanical work provided by the mechanism 14.
  • the distance between the contacts is sufficient to avoid any reclamping of an arc under the conditions of capacitive testing.
  • the exhaust of gases from the compression volume 42 to the volume Arc 48 expansion continues until the end of the opening.
  • the closing takes place in reverse, noting that the filling valve 62 then becomes active to allow filling of the compression volume 42. After the first 10% of the closing stroke, the second contact member 18 begins to move. The spring 94 then makes it possible to avoid any blockage of the transmission mechanism 20.
  • the opening of the orifices 58 by the delay valve 61 takes place after the separation of the contacts (at point P 3 of the curve), and preferably before the opening of the throat of the nozzle (at the point P 6 ) because it is preferable to first open the gas circulation path which has a smaller passage section, in this case path 60.
  • the positioning of points P 4 and P 6 relative to point P 5 determining the maximum the gear ratio is not critical, as long as these three points remain close to each other.
  • the point P 6 can be between P 4 and P 5 .
  • the point P 4 can be between P 5 and P 6 .
  • FIG. 7 shows a detail of the second embodiment, in which the transmission mechanism 120 comprises a cam 184 cooperating on the one hand with one end of the arcing contact 80 and on the other hand with a rod 186.
  • the end of the arcing contact 80 is provided as in the first embodiment of a roller 190a having a sliding function and cooperating with a track 192a constituted by a curvilinear groove made in the cam 184.
  • the rod 184 is provided at its end with a roller 190b having the function of slide and cooperating with track 192b constituted by a second curvilinear groove in form of buttstock practiced in the cam 184.
  • the shape of the two tracks 192a and 192b is chosen so as to obtain gear ratios of the same type as those described for the first embodiment.
  • the other elements of the circuit breaker according to the second mode of embodiments are identical to those of the first mode.
  • valve closing the tube near the finger of contact in place of the sleeve 61, so as to further promote the increase in pressure in the expansion volume at the start of opening, especially in the capacitive test conditions.
  • the permanent contact 70 is movable and integral with the arcing contact 72. It is also conceivable to provide a fixed permanent contact 70 and an arcing contact 72 alone driven by the transmission mechanism 20.

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  • Circuit Breakers (AREA)
EP01410154A 2000-11-30 2001-11-27 Hochspannungsschaltgerät mit Doppelbewegung Expired - Lifetime EP1211706B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0015525A FR2817389B1 (fr) 2000-11-30 2000-11-30 Appareillage de coupure electrique haute tension a double mouvement
FR0015525 2000-11-30

Publications (2)

Publication Number Publication Date
EP1211706A1 true EP1211706A1 (de) 2002-06-05
EP1211706B1 EP1211706B1 (de) 2006-06-21

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Application Number Title Priority Date Filing Date
EP01410154A Expired - Lifetime EP1211706B1 (de) 2000-11-30 2001-11-27 Hochspannungsschaltgerät mit Doppelbewegung

Country Status (6)

Country Link
EP (1) EP1211706B1 (de)
JP (1) JP4084035B2 (de)
CN (1) CN1186793C (de)
DE (1) DE60120885T2 (de)
FR (1) FR2817389B1 (de)
TW (1) TW518624B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
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EP1630841A1 (de) * 2004-08-23 2006-03-01 ABB Technology AG Schaltkammer und Hochleistungsschalter
EP1744338A1 (de) 2005-07-13 2007-01-17 Nuova Magrini Galileo S.p.A. Antriebsmechanismus und Schaltverfahren für ein Schaltgerät
EP1906425A1 (de) * 2006-09-29 2008-04-02 Areva T&D Sa Betätigung mittels eines zylindrisches Nocke von Kontakten einer Schaltkammer mit Doppelbewegung
EP1930930A1 (de) 2006-12-06 2008-06-11 ABB Technology AG Getriebe für elektrischen Leistungsschalter
CN102473549A (zh) * 2009-06-29 2012-05-23 株式会社东芝 带接通电阻接点的气体断路器及其接通、断路方法
WO2014114483A1 (de) * 2013-01-22 2014-07-31 Siemens Aktiengesellschaft Schaltanordnung
WO2014114484A1 (de) * 2013-01-22 2014-07-31 Siemens Aktiengesellschaft Schaltverfahren und schalteinrichtung
CN118782417A (zh) * 2024-06-26 2024-10-15 浙江金莱勒电气股份有限公司 一种模块化隔离开关的控制模块及其生产工艺

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ATE475193T1 (de) * 2006-12-11 2010-08-15 Abb Technology Ag Leistungsschalter mit getriebe mit totlage
DE102007031948A1 (de) * 2007-07-06 2009-01-08 Siemens Ag Schaltgeräteanordnung mit einem Abströmkanal
JP5865670B2 (ja) * 2011-10-24 2016-02-17 株式会社東芝 ガス遮断器
DE102012205224A1 (de) * 2012-03-30 2013-10-02 Alstom Technology Ltd. Druckgasschalter
DE102013200918A1 (de) * 2013-01-22 2014-07-24 Siemens Aktiengesellschaft Schaltgeräteanordnung
CN104704592B (zh) * 2013-02-07 2017-01-18 厦门华电开关有限公司 开关传动机构和功率开关
WO2015029516A1 (ja) * 2013-08-29 2015-03-05 株式会社日立製作所 ガス遮断器
JP6289856B2 (ja) 2013-10-16 2018-03-07 株式会社東芝 ガス遮断器
JP6364358B2 (ja) * 2015-02-03 2018-07-25 株式会社日立製作所 ガス遮断器
EP3082144B1 (de) * 2015-04-15 2017-10-18 Siemens Aktiengesellschaft Elektrische schaltvorrichtung mit zweispurigem klemmstück
DE102016214750A1 (de) * 2016-05-19 2017-11-23 Siemens Aktiengesellschaft Verfahren zur Herstellung eines keramischen Isolators
CN109192597B (zh) * 2018-10-11 2020-02-04 西安西电开关电气有限公司 断路器及其双动传动装置
DE102020104258B4 (de) * 2020-02-18 2022-09-29 Schaltbau Gmbh Schaltgerät mit zumindest zwei miteinander kommunizierenden Löschbereichen
WO2022178963A1 (en) * 2021-02-25 2022-09-01 Jst Power Equipment, Inc. Switchgear system having chain driven circuit breaker and associated methods

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EP0313813A1 (de) * 1987-10-27 1989-05-03 BBC Brown Boveri AG Druckgasschalter
EP0809269A2 (de) * 1996-05-24 1997-11-26 Siemens Aktiengesellschaft Hochspannungs-Leistungsschalter mit zwei antreibbaren Schaltkontaktstücken
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EP1630841A1 (de) * 2004-08-23 2006-03-01 ABB Technology AG Schaltkammer und Hochleistungsschalter
WO2006021109A1 (de) * 2004-08-23 2006-03-02 Abb Technology Ag Schaltkammer und hochleistungsschalter
US7566842B2 (en) 2004-08-23 2009-07-28 Abb Technology Ag Switching chamber and heavy-duty circuit breaker
EP1744338A1 (de) 2005-07-13 2007-01-17 Nuova Magrini Galileo S.p.A. Antriebsmechanismus und Schaltverfahren für ein Schaltgerät
EP1906425A1 (de) * 2006-09-29 2008-04-02 Areva T&D Sa Betätigung mittels eines zylindrisches Nocke von Kontakten einer Schaltkammer mit Doppelbewegung
FR2906642A1 (fr) * 2006-09-29 2008-04-04 Areva T & D Sa Actionnement par came cylindrique des contacts d'une chambre de coupure a double mouvement.
US7777149B2 (en) 2006-09-29 2010-08-17 Areva T&D Sa Actuating the oppositely-moving contacts of an interrupting chamber by a cylindrical cam
EP1930930A1 (de) 2006-12-06 2008-06-11 ABB Technology AG Getriebe für elektrischen Leistungsschalter
CN102473549A (zh) * 2009-06-29 2012-05-23 株式会社东芝 带接通电阻接点的气体断路器及其接通、断路方法
EP2450930A4 (de) * 2009-06-29 2014-03-12 Toshiba Kk Gasschutzschalter mit rückstell-ohm-kontakt und verfahren zum zurückstellen und auslösen davon
WO2014114483A1 (de) * 2013-01-22 2014-07-31 Siemens Aktiengesellschaft Schaltanordnung
WO2014114484A1 (de) * 2013-01-22 2014-07-31 Siemens Aktiengesellschaft Schaltverfahren und schalteinrichtung
US9460873B2 (en) 2013-01-22 2016-10-04 Siemens Aktiengesellschaft Switching method and switching device
AU2014210105B2 (en) * 2013-01-22 2016-12-15 Siemens Aktiengesellschaft Switching arrangement
AU2014210106B2 (en) * 2013-01-22 2017-03-16 Siemens Aktiengesellschaft Switching method and switching device
RU2619272C2 (ru) * 2013-01-22 2017-05-15 Сименс Акциенгезелльшафт Способ переключения и устройство переключения
US9741514B2 (en) 2013-01-22 2017-08-22 Siemens Aktiengesellschaft Switching arrangement
RU2629568C2 (ru) * 2013-01-22 2017-08-30 Сименс Акциенгезелльшафт Коммутационное устройство
CN118782417A (zh) * 2024-06-26 2024-10-15 浙江金莱勒电气股份有限公司 一种模块化隔离开关的控制模块及其生产工艺

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DE60120885T2 (de) 2007-01-18
TW518624B (en) 2003-01-21
JP4084035B2 (ja) 2008-04-30
DE60120885D1 (de) 2006-08-03
EP1211706B1 (de) 2006-06-21
CN1186793C (zh) 2005-01-26
CN1357901A (zh) 2002-07-10
FR2817389B1 (fr) 2003-01-03
JP2002208336A (ja) 2002-07-26

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