WO2006021109A1 - Schaltkammer und hochleistungsschalter - Google Patents
Schaltkammer und hochleistungsschalter Download PDFInfo
- Publication number
- WO2006021109A1 WO2006021109A1 PCT/CH2005/000433 CH2005000433W WO2006021109A1 WO 2006021109 A1 WO2006021109 A1 WO 2006021109A1 CH 2005000433 W CH2005000433 W CH 2005000433W WO 2006021109 A1 WO2006021109 A1 WO 2006021109A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- contact piece
- arc
- contact pieces
- arc contact
- switching chamber
- Prior art date
Links
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 230000033001 locomotion Effects 0.000 claims description 50
- 238000000926 separation method Methods 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims 1
- 238000010791 quenching Methods 0.000 abstract description 34
- 230000000171 quenching effect Effects 0.000 abstract description 32
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 41
- 238000007664 blowing Methods 0.000 description 11
- 238000013016 damping Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241000722921 Tulipa gesneriana Species 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012821 model calculation Methods 0.000 description 1
Classifications
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- 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
- H01H33/901—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 making use of the energy of the arc or an auxiliary arc
-
- 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
- H01H11/0062—Testing or measuring non-electrical properties of switches, e.g. contact velocity
-
- 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
- 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
- H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
- H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
-
- 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
Definitions
- the invention relates to the field of Hochnapss ⁇ switch technology. It relates to a switching chamber for a high-performance switch and a high-performance switch and to a method for switching off a switching chamber according to the preamble of the independent claims.
- a quenching gas high-performance switch with a switching chamber which has two arcing contact pieces, of which at least one is movable by means of a drive. After a contact separation burns an arc between the two arcing contact pieces.
- a boiler room is provided for temporary storage of arc gas heated by the arc.
- An insulating nozzle has to guide a quenching gas flow connected to the boiler room Engle. This will be a blowing reaches the arc, which should lead to its extinction, so that a current flowing through the high-power switch can be switched.
- capacitive switching thus requires a high relative speed of the two arcing contact pieces.
- a relative speed of the two arcing contact pieces necessary for capacitive switching can be determined experimentally or by model calculations.
- the relative speed of the two arcing contact pieces is selected such that it meets the minimum requirements of the capacitive switching, optionally with a safety margin of a few percent.
- the switch has an insulating nozzle, which has a throat for guiding a quenching gas flow, which in turn is connected by means of a channel with the heating chamber.
- a switching chamber according to the invention for a high-power switch which can be filled with an extinguishing gas has a first arcing contact piece and a second arcing contact piece, of which at least one is movable by means of a drive. If necessary, an arc burns between the arcing contact pieces.
- the switching chamber comprises a heating chamber for temporarily storing extinguishing gas heated by the arc, and an insulating nozzle which has a throat connected to the heating chamber for guiding an extinguishing gas flow.
- a maximum relative speed Vi2, max of the two arcing contact pieces to each other is at least 1 .3 times as great as a relative speed Vi2, c of the two arcing contact pieces necessary for capacitive switching.
- This first view of the invention can also be formulated such that the switching chamber according to the invention is designed such that during a switch-off operation, a maximum relative speed Vi2, max of the two arcing contact pieces to each other at least 1 .3 times as large as a relative speed Vi2, c necessary for capacitive switching the two arcing contact pieces.
- the switching chamber according to the invention can be designed in this way or the invention can consist in that during a switch-off operation the maximum relative speed the two arcing contact pieces to each other at least 1.5 times, preferably at least 1 .7 times as large, advantageously at least 1 .9 times as large or even at least 2 times as large as the relative speed vi2, c of the two arcing contact pieces necessary for the capacitive switching.
- the speed vi2, c is the minimum relative speed of the two arcing contact pieces necessary for capacitive switching, ie the smallest relative speed of the two arcing contact pieces, which enables capacitive switching.
- the invention may consist in that, when the switching chamber is installed in a single-chamber high-power switch, for the maximum relative velocity Vi2, max of the two arcing contact pieces to each other during a turn-off operation: Vi2, max> 23 x UN • p • f / (E-crit-po), in particular vi 2, max ⁇ 27 ⁇ UN • P • f / (E crit • Po), advantageous
- the invention in this different aspect may consist in that the switching chamber is designed such that, if it is installed in a single-chamber high-power switch, for the maximum Relative speed vi2, max of the two arcing contact pieces to each other during a turn-off above.
- Vl 2 c «k X UN - p - f / (Elcrit * P ⁇ ) gives, to a good approximation, the minimum maximum speed required for capacitive switching between the two arcing contact pieces, where the factor k is typically between 1 6 and 1 8.5 ,
- Ekrit is about 8900 kV / (bar- m).
- Typical line frequencies are 50 Hz and 60 Hz.
- Fill pressures po are typically 4.3 bar or 6 bar or above.
- the pole factor p depends on the intended earthing conditions of the high-performance switch in the high-voltage network (see, for example, the standard IEC 62271-100) and is typically 1 .4 or 1 .2, occasionally above 1 .4.
- Typical high-performance switch rated voltages UN are of the order of 1 23 kV or 365 kV.
- the invention may be that for the maximum relative speed Vi2, max of the two arcing contact pieces to each other during a turn-off operation applies: Vi2, max ⁇ 1 3 m / s. advantageous Vi2, ma ⁇ > 1 5 m / s, in particular Vi2, ma ⁇ > 1 7 m / s, particularly advantageous
- the invention may consist in this different view that the switching chamber is designed such that the above relative to the maximum relative velocity vi ⁇ .max of the two arcing contact pieces to one another during a turn-off.
- the invention makes it possible to produce a very large arc gap within a very short time.
- material from the insulating nozzle can be vaporized by the arc along a large part of the throat, advantageously along the entire length of the throat.
- a large surface, in particular the entire inner surface of the throat can thus be used for a relatively long period of time for the generation (evaporation) of the arc-extinguishing material.
- a large amount of arc-quenching material is generated, so that an efficient arc blowing is achieved.
- the movement of the insulating nozzle is coupled to the movement of one of the two contact pieces, in particular rigidly coupled (equally fast and rectified movement of the insulating nozzle and of the relevant contact piece).
- the relative speed between the insulating nozzle and one of the two contact pieces satisfies one of the abovementioned conditions according to the invention for the maximum relative speed vi2, max of the two contact pieces.
- the throat is at least partially dammed by one of the two arcing contact pieces, which is referred to as Verdämm contact piece and is movable, so the two arcing contact pieces advantageously until at least the time of release of the passage through the Verdämm contact piece (that is, therefore, at least until a quenching gas flow through the throat is enabled), such relative velocity satisfies one of the above-mentioned conditions for Vi2, max.
- This relative speed may be the maximum relative speed Vi2, max of the arcing contact pieces or also a relative speed which is less than Vi2, ma ⁇ .
- the invention may consist in (that the switching chamber is designed such that both Lichtbogehessor foundede are movable, and that during a phase of opposite movement of the arcing contact pieces a ratio vi / v2 of the speed vi of the first arcing contact piece to the speed v2 of second arcing contact piece of vi / v2 ⁇ 1: 2.4, in particular of vi / v2 ⁇ 1: 2.7, vi / v2 ⁇ 1: 2.8 or vi / v2 ⁇ 1: 3 is achieved.
- a speed ratio a large relative speed of the arcing contact pieces can be achieved. This is particularly advantageous if the mass to be moved with the first arcing contact piece clearly (at least by a factor of 2 or 3 or 4 or more) greater than the mass to be moved with the second arcing contact piece.
- a first drive for driving the first arcing contact piece and a second drive for driving the second arcing contact piece are provided.
- the second drive (auxiliary drive) may be a drive drivable by the first drive.
- the insulating nozzle can be driven by means of the first drive.
- the switching chamber is advantageously designed such that in one phase during a rectified movement of the arc contact pieces for the ratio vl / v2 of the speed vi of the first arcing contact piece to the speed v2 of the second arcing contact piece:
- the speed ratio vi / v2 is between 0.9 and 1 .1 or close to one or is essentially one.
- a compression space is present whose volume is reduced during a switch-off. It may be the compression chamber with the boiler room identical or different from the boiler room, and be provided in particular a valve between the compression space and the boiler room.
- the switch, or the switching chamber can be designed as a buffer switch (blow piston switch) or as a self-blowing switch or as a buffer switch diblasschalter- hybrid.
- the switching chamber may be advantageously designed so that during a turn-off, after the contact separation, and while a quenching gas flow along an axis through the throat in the direction of the second arcing contact piece is possible, a measured parallel to the axis distance d between the throat and the second Arc contact piece is selected such that the
- Flow rate of the quenching gas flow is in such a range at a maximum, which is arranged with respect to the axis radially laterally adjacent to the second arcing contact piece and / or within the second arcing contact piece.
- the area can be contiguous or consist of several subareas.
- the distance d is a spacing.
- the distance d is of course measured between the facing ends of throat and second contact piece when the throat and the second contact piece are spaced apart.
- the distance d By said choice of the distance d, an optimization of the extinguishing gas flow, in particular in the region of the throat and the second contact piece is achieved.
- the extinguishing gas flow is optimized so that a particularly high dielectric strength is generated where a particularly high dielectric load is present.
- This advantageous effect is achieved by the described choice of the distance d, since a high quenching gas density can be achieved along the switching path, while a lower quenching gas density in the dielectrically less loaded area laterally (and / or inside) of the second contact piece is present.
- the throat is formed substantially cylindrical, and advantageously the second contact piece is also formed substantially cylindrical.
- the diameter of the respective cylinder does not have to be completely constant and can vary slightly. Deviations from a circular cross section to, for example, elliptical cross sections are possible.
- the throat (or the second contact piece) may have another, advantageously substantially prismatic shape and is still referred to as substantially cylindrical.
- a corresponding radial dimension of the throat is then taken.
- the diameter of such a circle can be taken with good accuracy, which has the same area as the throat near the second contact piece.
- the diameter of the cylinder or the radial dimension of the prism must not be exactly constant.
- the relevant quantity for the determination of d is the radial dimension at the end of the cylinder or prism facing the second contact piece. Such forms are also included in the term "substantially cylindrical".
- the mentioned advantageous flow rate condition is fulfilled for the common switch geometries. If the distance d can be kept within a narrower of the specified ranges for d, maintenance of the advantageous extinguishing gas flow can be better ensured.
- the quenching phase which occurs after the contact separation, and during which an extinguishing gas flow through the throat can take place in the direction of the second arcing contact piece (and also takes place in the case of switching).
- the distance d satisfies the condition mentioned. This condition is that the region in which the flow velocity of said quenching gas flow directed through the throat toward the second contact piece is greatest is located within the second contact piece and / or laterally adjacent to the second contact piece.
- the throat is at least partially insulated with a contact piece which can be designated as a damming contact piece, no (notable) extinguishing gas flow can take place through the throat.
- the said condition for the distance d is advantageously fulfilled for at least 10 ms, more advantageously for at least 20 ms, at least 35 ms or at least 50 ms during a switch-off operation.
- the Engnis can also be called a nozzle channel.
- the contact separation means a separation of a physical contact between the two arcing contact pieces 1 and 2.
- the physical contact can be realized, for example, by contacting the contact pieces 1, 2 directly or by means of an intermediate contact piece contacting the two arcing contact pieces 1, 2. Contact pieces).
- the second arcing contact piece is like a pin, in particular full pin-like design
- the throat is at least partially deflatable by one of the two arcing contact pieces, which is referred to as Verdämm contact piece and is movable, and the switching chamber is designed such that during a Ausschaltvorganges there is a period during which a direction of movement of the Verdämm - Contact piece remains unchanged and the maximum relative speed Vi2, max of the two arcing contact pieces is achieved to each other. This period advantageously takes at least until the Enghis is no longer at least partially dammed by the Verdämm contact piece.
- a particularly preferred embodiment is characterized in that the Engnis by one of the two arcing contact pieces, which is referred to as Verdämm contact piece and is movable, at least partially WegMmmbar, and (that the switching chamber is designed such that) during a turn-off a direction of movement of the at least one movable arcing contact piece takes place when the throat is no longer dammed by the damper contact piece at least partially.
- the movement direction reversal taking place after the release of the throat through the damper contact piece also makes it possible to optimize the quenching gas flow near the damper contact piece.
- the distance between the two contact pieces can be (slightly) increased or reduced or, with particular advantage, kept substantially constant.
- the movement of the insulating nozzle 1: 1 (rigid) is coupled to the movement of the first contact piece and after the Movement direction reversal rectified movement of the two contact pieces is also substantially the same size, a predeterminable distance between the throat and the Verdämm contact piece can be kept substantially constant.
- one of the conditions mentioned above for the distance d over a longer period of time can also be met.
- a transmission driven by the drive is used as the auxiliary drive (second drive)
- a speed ratio vi / v2 of the speed vi of the first arcing contact to the speed v2 of the second arcing contact of vi / v2 «1: 1 in the same direction contact piece - Movement a constant contact piece distance (and possibly also a constant distance between the throat and the Verdämm- contact piece) can be achieved, which remains even when the switch movement is decelerated by a damping mechanism. Also, in this way the influence of return to said distances can be substantially eliminated. Return occurs when the movement of a driven contact piece is hindered by quenching gas in the boiler room, so that thereby takes place an unintended reversal of movement of at least one of the contact pieces.
- a high-performance switch according to the invention has at least one switching chamber according to the invention and has the corresponding advantages.
- the method according to the invention for switching off a switching chamber for a high-power switch that can be filled with a quenching gas, with a first arcing contact piece and with a second arcing contact piece, with at least one drive and with an insulating nozzle having a throat, has the steps that at least one of the two arcing contact pieces by means of Drive is moved, that a contact separation takes place and an arc burning between the arcing contact pieces is ignited, is heated by the quenching gas, and that the heated quenching gas is cached and led to the blowing of the arc through the Engnis.
- a maximum relative speed vu.max of the two arcing contact pieces is achieved, which is at least 1 .3 times, in particular 1 .5 times, as large as a relative velocity vi 2, c of the two necessary for the capacitive switching arcing contact pieces.
- the inventive method can also be referred to as a method for switching an electric current by means of a switching chamber.
- the two arcing contact pieces are arranged coaxially with each other.
- the channel between the boiler room and Engnis can be advantageously designed as an annular channel.
- the arcing contact pieces can also be nominal current contact pieces at the same time.
- separate rated current contacts are provided in addition to the arcing contact pieces.
- the rated current contacts are separated from each other so that the electrical current to be interrupted commutes to the arcing contact pieces. Thereafter, the arc contact pieces are separated with ignition of the arc.
- one of the two arcing contact pieces in particular the first arcing contact piece, have an opening for receiving the other, advantageously pin-shaped arcing contact piece in the closed switch state and for discharging extinguishing gas in the opened switch state.
- this arc contact piece may be formed as a contact tulip with a plurality of contact fingers.
- the second arcing contact piece is formed like a pin and is movable while the first contact piece has an opening for receiving the second contact piece, and is movable or not movable.
- High-performance switches and switching chambers in the sense of this application are in particular those designed for nominal voltages of typically at least approximately 72 kV.
- the arc in a switching chamber according to the invention generally burns close to the axis and is substantially stationary. In general, the base points of the arc are fixed to the ends of the arcing contact pieces.
- Fig. 1 shows an inventive switching chamber with two movable
- FIG. 2 shows a path-time curve for a switch-off process
- Fig. 3 is a speed-time curve for a turn-off.
- the high-power switch filled with an extinguishing gas (for example SF ⁇ , or a mixture of N2 and SFe) has a first movable arcing contact piece 1 which can be driven by a non-illustrated drive.
- a suitable drive can be, for example, an electrodynamic drive or a spring-loaded drive.
- a second arcing contact piece 2 is driven by an auxiliary drive 3, which is realized by the drive 3 driven by the drive.
- the two arcing contact pieces 1, 2 touch each other. It may additionally be provided not shown nominal current contact pieces.
- the first contact piece 1 is rigidly connected to an insulating nozzle 5 and an auxiliary nozzle 13.
- the insulating nozzle 5 has a throat 6, which is formed substantially cylindrical with a diameter D. Subsequent to the throat 6, a diameter-extended area 21 with an opening angle ⁇ adjoins. Through an annular channel 7, the Engnis with a heating chamber 1 1 is connected. Connected to the heating chamber 1 1 through a valve 12 is a compression space 10. The volume of the heating space is by means of a piston 1 5, which is advantageously formed stationary, changeable.
- the high-power switch is essentially rotationally symmetrical with respect to an axis A, whereby axial directions z1 and z2, along which the arcing contact pieces move and vertical radial directions are defined.
- FIG. 2 schematically shows a path-time diagram (zt curves) for the movement of the first contact piece 1 (dashed curve) and of the second contact piece 2 (dotted curve) and for the relative movement of the two contact pieces (solid line). shown.
- v-t curves The corresponding velocity-time curves (v-t curves) are shown schematically in FIG.
- the speed vi of the first contact piece 1 (dashed curve) and the speed v2 of the second contact piece 2 (dotted curve) and the relative speed vi 2 of the two contact pieces (solid line) are shown.
- the first arc contact piece 1 and the insulating nozzle 5, the auxiliary nozzle 13 and the valve 12 first move in the direction z1.
- the second contact piece 2 moves in the direction z2.
- the mass to be moved directly by the drive is large in relation to the mass to be moved by the gear 3. Until just before reaching the maximum speed vi can therefore be waited with the acceleration of the second contact piece 2.
- the first contact piece 1 remains after reaching its maximum speed up to a deceleration process at the end of the switch-off at this speed.
- the contact separation takes place under ignition an arc 4 instead. It is possible that the contact separation takes place shortly (a few milliseconds) before or after reaching the maximum relative speeds.
- the arc 4 leads to the heating of quenching gas and dissolves in Engnis 6 burn-off material from the insulating 5 out.
- an overpressure in the boiler room 1 1 is generated in this way.
- the valve 12 pressure difference between the boiler room 1 1 and the compression chamber 10 for example, when in the boiler room 1 1 a greater pressure prevails than in the compression chamber 10, the valve closes 12.
- the later from the boiler room 1 1 and optionally also from the Compression chamber 10 through the boiler room 1 1 then through the channel 7 in the space between the two contact pieces 1, 2 extinguishing path extinguishing gas is then used to extinguish the arc. 4
- quenching gas can flow through the channel 7 not only through the tulip-shaped first contact piece 1 (in the direction zl) but also (in FIG appreciable mass) through the throat 6 and the pin-shaped second contact piece 2 over (in the direction z2) flow.
- a distance d between the second, advantageously pin-shaped contact piece 2 and the throat 6 can be kept substantially constant.
- This distance d is selected such that, in the case of an extinguishing gas flow through the throat 6 to the damper contact piece 2 (in the direction z2), the maximum flow velocity lies laterally (ie radially) next to the damper contact piece 2, and in particular not on the distance between the two Arc contact pieces 1 and 2 (or radially adjacent to this distance).
- the distance d is chosen to be d ⁇ (0.7 ⁇ 0.2) xD, where D is the diameter of the throat 6 (at its z2-sided end). If the opening angle ⁇ x were less than 45 °, then the distance d would advantageously be approximately d (0.7 ⁇ 0.2) xD / tan ⁇ .
- optimal flow conditions can be up to the end of the Maintain switch-off, thereby ensuring a safe arc extinguishing without re-ignition. Due to the speed ratio vi / v2 of 1: 1, the distance between the two contact pieces 1 and 2 is constant, so that the electric field distribution is kept constant.
- Figs. 2 and 3 show the movements of the contact pieces 1, 2 only until shortly after the use of the damping.
- Pl denotes a first phase, during which, with opposite movement of the two contact pieces 1, 2, a maximum relative speed vi 2 is present. This is in the illustrated case Vi2, max ⁇ 20 m / s.
- P2 designates a second phase, during which, when the two contact pieces 1, 2 move in the same direction, a speed ratio vi / v2 of approximately 1: 1 is present after release of the throat.
- the end of the second phase P2 coincides with the application of damping.
- a lever 8 is rotatably supported at a first end by means of a bolt 1 6 at the second contact piece 2.
- the lever 8 At the second end of the lever 8, the lever 8 by means of a pin 1 7 rotatably mounted on a leg of an angle lever 9.
- the second leg of the angle lever 9 is guided by means of a bolt 18 in a link plate 14.
- the angle lever 9 is rotatably supported by means of a stationary, for example, attached to the housing of the high-power switch pin 1 9.
- the movement of the link plate 14 (preferably rigidly) is coupled to the movement of the first contact piece 1.
- the transmission 3 can convert a linear movement (of the drive) with a constant speed into a movement with reversal of the direction of movement.
- a desired velocity profile for the second contact piece 2 can be selected.
- the transmission 3 can, as shown in Fig. 1, be constructed symmetrically, resulting in a more favorable distribution of forces and greater stability.
- the velocity vi of the first contact piece 1 after the initial acceleration may typically be between 3 m / s and 10 m / s, for example 5 m / s.
- the speed v2 of the second Contact piece 1 can typically be 10 m / s to 20 m / s at maximum, for example 1 5 m / s.
- the maximum speed ratio vi / v2 (with opposite motion) can be between 1: 2.4 and 1: 3.5, for example 1: 3.
- correspondingly large relative velocities vi 2 between typically 1 5 m / s, 20 m / s and more can be achieved, which enable a rapid release of the throat 6 and an efficient arc blowing by providing a large quenching gas pressure within a short time.
- a large distance between the contact pieces 1 and 2 (Isolierumble) can be achieved within a very short time.
- the throat 6 and also the second contact piece 2 is formed substantially cylindrical.
- the diameter of the respective cylinder does not have to be completely constant and can vary slightly. Deviations from a circular cross section to, for example, elliptical cross sections are possible.
- throat lengths of more than 40 mm, advantageously more than 50 mm and more than 60 mm can be used.
- a corresponding high-performance switch can be designed for rated cur- rent currents of more than 40 kA or more than 50 kA at rated voltages of more than 1 70 kV or more than 200 kV.
Landscapes
- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005800363076A CN101048837B (zh) | 2004-08-23 | 2005-07-22 | 开关室和大功率开关 |
JP2007528550A JP4833980B2 (ja) | 2004-08-23 | 2005-07-22 | スイッチング・チャンバ及びヘビーデューティ・サーキット・ブレーカ |
US11/709,819 US7566842B2 (en) | 2004-08-23 | 2007-02-23 | Switching chamber and heavy-duty circuit breaker |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04405527A EP1630841B1 (de) | 2004-08-23 | 2004-08-23 | Schaltkammer und Hochleistungsschalter |
EP04405527.5 | 2004-08-23 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/709,819 Continuation US7566842B2 (en) | 2004-08-23 | 2007-02-23 | Switching chamber and heavy-duty circuit breaker |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006021109A1 true WO2006021109A1 (de) | 2006-03-02 |
WO2006021109A8 WO2006021109A8 (de) | 2006-04-20 |
Family
ID=34932248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2005/000433 WO2006021109A1 (de) | 2004-08-23 | 2005-07-22 | Schaltkammer und hochleistungsschalter |
Country Status (7)
Country | Link |
---|---|
US (1) | US7566842B2 (de) |
EP (1) | EP1630841B1 (de) |
JP (1) | JP4833980B2 (de) |
CN (1) | CN101048837B (de) |
AT (1) | ATE484067T1 (de) |
DE (1) | DE502004011745D1 (de) |
WO (1) | WO2006021109A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2949170B1 (fr) * | 2009-08-14 | 2011-11-25 | Areva T & D Sas | Chambre de coupure pour disjoncteur a moyenne ou haute tension a energie de manoeuvre reduite |
US8890019B2 (en) | 2011-02-05 | 2014-11-18 | Roger Webster Faulkner | Commutating circuit breaker |
US9824838B2 (en) * | 2011-02-05 | 2017-11-21 | Alevo International, S.A. | Commutating circuit breaker |
US9035211B2 (en) | 2011-07-20 | 2015-05-19 | Pennsylvania Breaker, Llc | Gas blast interrupter |
EP2761637B1 (de) * | 2011-09-30 | 2016-12-07 | Alevo International, S.A. | Gleichrichter-schutzschalter |
WO2013153110A1 (en) * | 2012-04-11 | 2013-10-17 | Abb Technology Ag | Circuit breaker |
US9054530B2 (en) | 2013-04-25 | 2015-06-09 | General Atomics | Pulsed interrupter and method of operation |
EP2887367A1 (de) | 2013-12-19 | 2015-06-24 | ABB Technology AB | Gasisolierter Hochspannungsschutzschalter |
JP6418079B2 (ja) * | 2015-06-24 | 2018-11-07 | Smk株式会社 | コンタクトの接触構造 |
WO2018015436A1 (en) * | 2016-07-21 | 2018-01-25 | Abb Schweiz Ag | Gas-insulated high-voltage switching device with improved main nozzle |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000052721A1 (fr) * | 1999-03-01 | 2000-09-08 | Alstom | Disjoncteur haute tension a double mouvement |
EP1211706A1 (de) * | 2000-11-30 | 2002-06-05 | Schneider Electric High Voltage SA | Hochspannungsschaltgerät mit Doppelbewegung |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2683383B1 (fr) * | 1991-11-04 | 1993-12-31 | Gec Alsthom Sa | Disjoncteur a haute ou moyenne tension a triple mouvement. |
DE19613569A1 (de) * | 1996-04-04 | 1997-10-09 | Asea Brown Boveri | Leistungsschalter |
JPH1083748A (ja) * | 1996-09-10 | 1998-03-31 | Mitsubishi Electric Corp | 開閉器 |
FR2770678B1 (fr) * | 1997-10-30 | 1999-12-31 | Gec Alsthom T & D Sa | Disjoncteur de generateur a commande mecanique unique |
DE10003359C1 (de) | 2000-01-21 | 2001-07-19 | Siemens Ag | Hochspannungs-Leistungsschalter mit zwei antreibbaren Lichtbogenkontaktstücken und einem Heizraum |
DE10006167B4 (de) * | 2000-02-11 | 2009-07-23 | Abb Schweiz Ag | Leistungsschalter |
FR2807870B1 (fr) * | 2000-04-18 | 2002-05-24 | Alstom | Interrupteur a soufflage d'arc, possedant une chambre de coupure a compression de gaz reduite et un mouvement alternatif du piston |
-
2004
- 2004-08-23 EP EP04405527A patent/EP1630841B1/de not_active Expired - Lifetime
- 2004-08-23 DE DE502004011745T patent/DE502004011745D1/de not_active Expired - Lifetime
- 2004-08-23 AT AT04405527T patent/ATE484067T1/de active
-
2005
- 2005-07-22 JP JP2007528550A patent/JP4833980B2/ja not_active Expired - Fee Related
- 2005-07-22 CN CN2005800363076A patent/CN101048837B/zh active Active
- 2005-07-22 WO PCT/CH2005/000433 patent/WO2006021109A1/de active Application Filing
-
2007
- 2007-02-23 US US11/709,819 patent/US7566842B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000052721A1 (fr) * | 1999-03-01 | 2000-09-08 | Alstom | Disjoncteur haute tension a double mouvement |
EP1211706A1 (de) * | 2000-11-30 | 2002-06-05 | Schneider Electric High Voltage SA | Hochspannungsschaltgerät mit Doppelbewegung |
Also Published As
Publication number | Publication date |
---|---|
DE502004011745D1 (de) | 2010-11-18 |
CN101048837A (zh) | 2007-10-03 |
CN101048837B (zh) | 2010-12-22 |
US7566842B2 (en) | 2009-07-28 |
JP4833980B2 (ja) | 2011-12-07 |
US20070205182A1 (en) | 2007-09-06 |
WO2006021109A8 (de) | 2006-04-20 |
ATE484067T1 (de) | 2010-10-15 |
JP2008511107A (ja) | 2008-04-10 |
EP1630841A1 (de) | 2006-03-01 |
EP1630841B1 (de) | 2010-10-06 |
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