EP3574517A1 - Leistungsschalter mit mehreren unterbrechereinheiten - Google Patents
Leistungsschalter mit mehreren unterbrechereinheitenInfo
- Publication number
- EP3574517A1 EP3574517A1 EP18707298.8A EP18707298A EP3574517A1 EP 3574517 A1 EP3574517 A1 EP 3574517A1 EP 18707298 A EP18707298 A EP 18707298A EP 3574517 A1 EP3574517 A1 EP 3574517A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rod
- drive
- circuit breaker
- breaker
- coupling
- 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.)
- Pending
Links
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
- H01H33/008—Pedestal mounted switch gear combinations
-
- 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
- H01H33/42—Driving mechanisms
-
- 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
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
Definitions
- the invention relates to a circuit breaker with a plurality of interrupter units.
- Circuit breakers are electrical switches that are designed for high electrical currents and voltages to particular high overload currents and short circuit currents can safely turn off ⁇ .
- power switches have an interrupter unit with at least one movable switching element for opening and closing a current path.
- circuit breakers for high voltages can comprise a plurality of breaker units, whose current paths are electrically connected in series to divide a voltage applied to the Leis ⁇ tung switches voltage to the current paths of the individual interrupter units.
- a synchronization of the switching movements in the individual breaker units must be achieved, that is, the current paths of the breaker units must in the
- Switching be opened or closed at least approximately simultaneously.
- several at ⁇ drives can be used for example, drive the switching elements differing ⁇ cher breaker units and are synchronized with each other.
- the invention has for its object to provide a circuit breaker with multiple interrupter units, which is improved in particular with regard to the synchronization of the switching movements in the individual interrupter units.
- the object is achieved by the features of claim 1.
- An ⁇ Advantageous embodiments of the invention are the subject of the dependent claims.
- An inventive circuit breaker has a plurality of sub-breaker units, each having at least one movable switching element for opening and closing a current path of the interrupter unit, wherein the current paths of all Un ⁇ terbrecherüen are electrically connected in series.
- Is coupled to the power switch has a drive, to which each loading wegbare switching element via a kinematic chain for BEWE ⁇ gene of the switching element, wherein the kinematic chains are at least approximately equal length.
- An inventive circuit breaker thus has a plurality of interrupter units, the movable switching elements al ⁇ le of only one common drive, such as a spring drive or a motor drive, are driven.
- the synchronization of the switching movements in the individual interrupter units is achieved in that the movable switching elements of the different interrupter units are coupled via at least approximately the same length kinematic chains to the drive. This results in a considerable reduction in costs and material, for example, compared to an embodiment of the circuit breaker with a plurality of synchronized drives for switching elements of different interrupter units.
- An embodiment of the invention provides a directly driven by the drive drive rod, which is a transmission element of all kinematic chains. This advantageously enables a simultaneous activation of all kinematic chains by means of a common drive rod.
- a further embodiment of the invention provides that each kinematic chain has at least one coupled via a drive lever to the drive rod coupling rod, wherein the coupling rods are the same length. This causes beneficial an equal length of the links formed by the coupling rods of the kinematic chains.
- a further embodiment of the invention provides that each coupling rod is guided in its central region by a guide lever. This can advantageously be avoided buckling of the coupling rods at high pressure loads or at least reduced, which reduces a power transmission through the coupling rods.
- a further embodiment of the invention provides that two coupling rods of different kinematic chains are moved over the drive lever in opposite Richtun ⁇ gene.
- the coupling rods of various kinematic chains are subjected to pressure or tension simultaneously during a switching operation. This is advantageous because a compressive load of the coupling rod of a kinematic chain with a simultaneous tensile load of the coupling rod of another kinematic chain can cause a non-uniform force transmission through these coupling rods, which can affect the synchronization of the associated with these kinematic switching elements.
- a further embodiment of the invention provides that each kinematic chain has two coupled to the at ⁇ drive rod via the drive lever coupling rods which are moved via the drive lever in opposite directions. This causes with each gear change a Kop ⁇ pelstange each kinematic chain tension loaded and the other coupling rod is pressure-loaded. This eliminates before ⁇ geous the disadvantage of a reduction in the power transmission through a pressure load of the coupling rod in the case of an embodiment of a kinematic chain with only one coupling rod. Furthermore, can be dispensed with the use of guide levers to reduce buckling of the coupling rods at Druckbe ⁇ load, as at each switching operation is always one of the coupling rods train loaded, which can take over the power transmission ⁇ mainly.
- a further embodiment of the invention provides a support frame, which has a carrier formed as a hollow body, within which the coupling rods and the drive lever are arranged and on which the drive is arranged.
- the drive lever and the drive are arranged in a central region of the carrier and each coupling rod ⁇ ge extends from the central region of the carrier to an end region of the carrier.
- each kinematic chain has a switching rod which extends in an insulator column on which at least one breaker ⁇ unit is arranged, wherein the shift rails are at least approximately the same length.
- each coupling rod of a kinematic chain is coupled via a Umlenkgetrie ⁇ be to the shift rod of the kinematic chain. This advantageously enables a power transmission from the coupling rods to the interrupter units by the shift rods.
- a further embodiment of the invention provides that each insulator column is arranged on the carrier.
- switching rods arranged in the isolator columns can advantageously be coupled to coupling rods arranged in the carrier.
- a further embodiment of the invention provides that arranged on each insulator column two interrupter units are, which protrude on opposite sides of the insulator column. Thereby, each insulator column is beneficial ⁇ adhesive used for the arrangement of two interrupter units.
- a further embodiment of the invention provides that the movable switching elements of the two interrupter units arranged on an insulator column are coupled to a switching rod extending in the insulator column. This allowed ⁇ light advantageous to transfer a driving force of arrival drive to the switching elements via the shift rails.
- a further embodiment of the invention provides that each movable switching element is coupled via a Abretesumschtician and an output rod to a shift rod, wherein the output rods are at least approximately the same length. This advantageously causes an equal length of the links formed by the output rods of the kinematic chains.
- Another embodiment of the invention provides four interrupter units. This advantageously allows the distribution of a voltage applied to the circuit breaker voltage to four interrupter units.
- FIG. 1 shows a first embodiment of a power switch ⁇
- 2 shows a detail of the circuit breaker shown in Figure 1
- 3 shows a section of a second embodiment of a circuit breaker
- FIG. 5 shows a detail of a fourth embodiment of a circuit breaker. Corresponding parts are designated in the figures with Densel ⁇ reference symbols.
- Figure 1 shows a first embodiment of a power switch ⁇ 1.
- the circuit breaker 1 has two vertical insulator columns 3, 4, four interrupter units 5 to 8 and a support frame 9.
- the support frame 9 has a horizon ⁇ tal extending support 10 and frame legs 11, on which the carrier 10 is arranged.
- the insulator columns 3, 4 are arranged on the carrier 10 at opposite end regions of the carrier 10.
- the carrier 10 and the insulator ⁇ columns 3, 4 are each formed as a hollow body.
- Figure 2 shows a section of the circuit breaker 1 shown in Figure 1 in the region of the support frame 9, wherein the carrier 10 is shown broken.
- each insulator column 3 At the upper end of each insulator column 3, 4, two sub ⁇ breaker units 5 to 8 are arranged, which protrude on opposite sides of the insulator column 3, 4, wherein one of the two interrupter units 5 to 8 of the insulator column 3, 4 toward the other insulator column 3, 4 protrudes and the other interrupter unit 5 to 8 in the da ⁇ protrudes from the insulator column 3, 4 to the opposite direction.
- Each interrupter unit 5 to 8 has an insulating housing, in which a switching chamber of the circuit breaker 1 is arranged ⁇ .
- the insulating housings are each tube-like. leads and extend horizontally parallel to the Trä ⁇ ger 10.
- a movable between two switching positions Wennele ⁇ ment 13 of the interrupter unit 5 to 8 is arranged, wherein a current path of the interrupter unit 5 to 8 in a first switching position of the switching element 13 is opened and closed in the second switching position of the switching element 13.
- the current paths of the four breaker units 5 to 8 are electrically connected in series.
- the current paths of the two arranged on the same insulator column 3, 4 breaker units 5 to 8 are electrically connected in series and connected to the current paths of the two arranged on the other insulator column 3, 4 breaker units 5 to 8 by an electrical connection line 15. prevented.
- each capacitor unit 17 has at least one capacitor arranged in an insulating housing. At one end of each interrupter unit 5 to 8, which faces away from the insulator column 3, 4, on which the interrupter unit 5 to 8 is arranged, is in each case a shielding ring 19 for the dielectric shielding of the interrupter unit 5 to 8 and the capacitor arranged below it - 17 arranged.
- the circuit breaker 1 has a drive 21 through which the movable switching elements 13 of all breaker units 5 to 8 are movable. Each movable switching element 13 is coupled via a kinematic chain to the drive 21.
- the drive 21 is disposed at a central portion of the carrier 10 on an underside of the carrier 10 and ⁇ example, as a spring-type drive or a motor drive off educated. On the carrier 10 is also a Antriebssteue ⁇ tion 23 for controlling the drive 21 is arranged.
- a first kinematic chain is formed by a drive rod 25, a first coupling rod 27, a first shift rod 37 and a first output rod 31.
- the ⁇ An operating rod 25 is directly driven by the drive 21 and extends substantially vertically from the drive 21 into the carrier 10 inside.
- the drive rod 25 is coupled via a drive lever 35 to the first coupling rod 27.
- the first coupling rod 27 extends within the carrier 10 substantially horizontally from the drive lever 35 to a first deflection gear 39, which is arranged below a first Isola ⁇ torkla 3 and the first coupling rod 27 couples to the first shift rod 37.
- the first shift rod 37 extends substantially vertically within the first Iso ⁇ latorkla 3 of the first deflecting gear 39 to a first Abtriebsumschki 45, of which the first shift rod 37 is coupled to the first output rod 31.
- the first output rod 31 is coupled to the movable switching element 13 of a first interrupter unit 5, which is arranged on the first insulator column 3.
- a second kinematic chain is formed by the drive rod 25, the first coupling rod 27, the first shift rod 37 and a second output rod 32. Also, the second output rod 32 is coupled via the first Abtriebsumschein ⁇ unit 45 to the first shift rod 37. Furthermore, the second output rod 32 is coupled to the movable switching element 13 of a second interrupter unit 6, which is arranged on the first insulator column 3.
- a third kinematic chain is formed from the drive Stan ⁇ ge 25, a second coupling rod 28, a second shift rod 38, and a third output rod 33rd.
- Drive rod 25 is coupled via the drive lever 35 to the second coupling rod 28.
- the second coupling rod ver ⁇ runs within the carrier 10 substantially horizontally from the drive lever 35 to a second deflection gear 40, which is arranged below a second insulator column 4 and the second coupling rod 28 to the second switching rod 38 kop ⁇ pelt.
- the second shift rod 38 extends substantially vertically within the second insulator column 4 of the two ⁇ th deflection gear 40 to a second Abtriebsumschü 46, from which the second shift rod 38 is coupled to the third output rod 33.
- the third output Stan ⁇ ge 33 is coupled to the movable switching element 13, arranged on the second insulating column 4 third switch unit. 7
- a fourth kinematic chain is worn by the drive Stan ⁇ ge 25, the second coupling rod 28, the second Wegstan- 38 and a fourth output rod 34 is formed. Also, the fourth output rod 34 is coupled via the second Abtriebsumsch ⁇ unit 46 to the second shift rod 38. Further, the fourth output rod coupled to the movable element 13 of the scarf Tele ⁇ arranged on the second insulating column 4 four- th interrupter unit 8 34th
- the drive lever 35 has two substantially mutually perpendicular lever arms, wherein a lever arm with the on ⁇ operating rod 25 is connected and the other lever arm with the two coupling rods 27, 28 is connected. As a result, the drive lever 35 translates a substantially vertical movement of the drive rod 25 in the same direction, substantially horizontal movements of the coupling rods 27, 28.
- the first deflection 39 translates a substantially horizontal movement of the first coupling rod 27 in a substantially vertical movement of the first shift rod 37.
- the first deflection gear 39 has a first Umlenkwel ⁇ le 41 which is connected in each case like a connecting rod with the first coupling rod 27 and the first drive rod 25.
- the first deflecting shaft 41 is guided through the wall of a first deflecting ⁇ gear housing 43, the interior of which with the inner ⁇ spaces of the first insulator column 3, the first breaker unit 5 and the second interrupter unit 6 beispielswei ⁇ se forms a coherent gas-tight cavity, which can be filled, for example with an insulating gas such as sulfur hexafluoride.
- the second angle gear 40 translated analog in a horizontal Wesent ⁇ union movement of the second coupling rod 28 in a substantially vertical movement of the second shift rod 38.
- the second deflecting gear 40, a second idle shaft 42, each of a connecting rod with two ⁇ th Coupling rod 28 and the second drive rod 25 verbun ⁇ is.
- the second deflection shaft 42 is guided through the wall of a second Umlenkgetriebegephases 44, the interior of which forms with the interiors of the second insulator column 4, the third interrupter unit 7 and the fourth interrupter unit 8, a continuous gas-tight cavity, for example, filled with an insulating gas such as sulfur hexafluoride can be.
- the first Abtriebsumschmaschine 45 translates in a vertical Wesent ⁇ union movement of the first shift rod 37 opposite to each other in substantially horizontal movements of the first output rod 31 and the second power take-off ⁇ rod 32 which can be moved by their couplings to the
- Switching elements 13 of the first interrupter unit 5 and the second interrupter unit 6 in opposite horizontal movements of these switching elements 13 are translated. Accordingly, the second output diverting unit 46 translates substantially vertical movement of the second shift rod 38 into opposing substantially horizontal movements of the third output rod 33 and the fourth output rod 34 through their couplings to the movable switching elements 13 of the third interrupter unit 7 and the fourth interrupter unit 8 are translated into each ent ⁇ opposed horizontal movements of these switching elements 13.
- Each coupling rod 27, 28 is guided in its central region on a guide lever 36.
- the two coupling rods 27, 28 are of equal length, the two switch rods 37, 38 are of equal length, and the Abretesstan- gen 31 to 34 are of equal length, so that the four kinema ⁇ tables chains are at least approximately equal length. This advantageously ensures that the movable Wegelemen ⁇ th 13 of all four interrupter units 5 to 8 are moved by the drive 21 at least approximately simultaneously.
- Figure 3 shows a section similar to Figure 2 section of a second embodiment of a circuit breaker 1.
- the ⁇ ses embodiment differs from that shown in the Fi ⁇ gures 1 and 2 embodiment only by the execution of the drive lever 35.
- the Antriebshe ⁇ bel 35 of this embodiment is as a three-armed lever, the two mutually parallel lever arms, which are each connected to a coupling rod 27, 28, and a perpendicular thereto lever arm 25, which is connected to the drive rod 25 has.
- the two coupling rods 27, 28 are either either pressure loaded or tensioned in a switching operation, while in the embodiment shown in Figures 1 and 2 at each switching operation, one of the coupling rods 27, 28 pressure-loaded and the other train is loaded. This more uniform loading of the two coupling rods 27, 28 allows a comparison with the embodiment shown in Figures 1 and 2, a further improved synchronization the movements of the switching elements 13 of the breaker units 5 to 8.
- Figure 4 shows a section similar to Figure 2 section of a third embodiment of a circuit breaker 1.
- the ⁇ ses embodiment differs from that in the Fi ⁇ gur 3 illustrated embodiment, essentially by two additional coupling rods 29, 30, each having an order ⁇ steering gear 39, 40 connect to the drive lever 35, so that the two mutually parallel lever arms of the drive ⁇ lever 35 are connected by a respective coupling rod 27 to 30 with each of the two deflection gear 39, 40.
- one of the drive lever 35 with egg ⁇ nem deflection 39, 40 connecting coupling rods 27 to 30 is pressure-loaded and the other the drive lever 35 with the ⁇ sem deflection gear 39, 40 connecting coupling rod 27 to 30 trainloaded at each switching operation.
- FIG. 5 shows a detail analogous to FIG. 2 of a fourth exemplary embodiment of a circuit breaker 1.
- This embodiment also differs from the exemplary embodiment illustrated in FIGS. 1 and 2 only by the design of the drive lever 35.
- the drive lever 35 of this exemplary embodiment is designed as an expansion lever formed, which has two lever arms which can be moved by vertical movements of the drive rod 25 toward and away from each other and which are each connected to a Kop ⁇ pelstange 27, 28.
- the insulator columns 3, 4, or portions of the Isola ⁇ gate columns 3, 4 are each for example, a porcelain ge ⁇ manufactures or as a double pipe with a made of a silicone outer tube and one of a glass fiber reinforced plastic formed inner tube formed. Furthermore, the insulator columns 3, 4 on the outside ring-shaped insulator ⁇ umbrellas for extending creepage paths on the outside flowing leakage currents.
- the insulating housings of the interrupter units 5 to 8 and the condenser units 17 are each made, for example, of a porcelain or formed as a double tube with an outer tube made of a silicone and an inner tube made of a glass fiber reinforced plastic, and have annular insulator screens on the outside for extension from creepage paths on the outside flowing creepage currents.
- Each of a shift rod 37, 38 on two output rods 31 to 34 coupled Abtriebsumschumble 45, 46 of the embodiments shown in Figures 1 to 5 may also be carried out, for example, as a driven lever, which is analogous to the drive lever 35 of the embodiments shown in Figures 3 or 5 is formed and a substantially vertical movement of the shift rod 37, 38 in opposing substantially horizontal movements of the
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017204303.2A DE102017204303A1 (de) | 2017-03-15 | 2017-03-15 | Leistungsschalter mit mehreren Unterbrechereinheiten |
PCT/EP2018/053748 WO2018166736A1 (de) | 2017-03-15 | 2018-02-15 | Leistungsschalter mit mehreren unterbrechereinheiten |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3574517A1 true EP3574517A1 (de) | 2019-12-04 |
Family
ID=61283197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18707298.8A Pending EP3574517A1 (de) | 2017-03-15 | 2018-02-15 | Leistungsschalter mit mehreren unterbrechereinheiten |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3574517A1 (de) |
CN (1) | CN110447086B (de) |
DE (1) | DE102017204303A1 (de) |
WO (1) | WO2018166736A1 (de) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE457582B (sv) * | 1987-04-09 | 1989-01-09 | Asea Ab | Trepolig hoegspaenningsbrytare |
DE29810520U1 (de) | 1998-06-10 | 1998-08-20 | Siemens Ag | Hochspannungsleistungsschalter sowie Schaltkopf |
CN202487481U (zh) * | 2011-06-27 | 2012-10-10 | 中国西电电气股份有限公司 | 一种户外高压交流瓷柱式旁路开关 |
DE102013210136A1 (de) * | 2013-05-30 | 2014-12-04 | Siemens Aktiengesellschaft | Elektrisches Schaltgerät |
CN203910668U (zh) * | 2014-07-02 | 2014-10-29 | 中国西电电气股份有限公司 | 一种1100kV 特高压柱式断路器 |
FR3029681B1 (fr) * | 2014-12-08 | 2017-01-13 | Alstom Technology Ltd | Disjoncteur haute tension a commande deportee ayant une inertie reduite |
-
2017
- 2017-03-15 DE DE102017204303.2A patent/DE102017204303A1/de active Pending
-
2018
- 2018-02-15 CN CN201880018355.XA patent/CN110447086B/zh active Active
- 2018-02-15 EP EP18707298.8A patent/EP3574517A1/de active Pending
- 2018-02-15 WO PCT/EP2018/053748 patent/WO2018166736A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
CN110447086B (zh) | 2023-06-30 |
DE102017204303A1 (de) | 2018-09-20 |
CN110447086A (zh) | 2019-11-12 |
WO2018166736A1 (de) | 2018-09-20 |
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