CN103518246A - Double-motion gas insulated type circuit breaker - Google Patents
Double-motion gas insulated type circuit breaker Download PDFInfo
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- CN103518246A CN103518246A CN201180070877.2A CN201180070877A CN103518246A CN 103518246 A CN103518246 A CN 103518246A CN 201180070877 A CN201180070877 A CN 201180070877A CN 103518246 A CN103518246 A CN 103518246A
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- contact elements
- nominal
- arcing contact
- arcing
- circuit breaker
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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
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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
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
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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
- H01H33/904—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
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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
- H01H33/02—Details
- H01H2033/028—Details the cooperating contacts being both actuated simultaneously in opposite directions
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- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
A gas insulated type circuit breaker (1) comprises a housing (4) defining a gas volume for a dielectric insulation gas; a first nominal contact element (42) and a second nominal contact element (52) adapted for selectively carrying or interrupting a nominal current between them, wherein the first nominal contact element (42) is movable along an axis (2) of the circuit breaker, and the second nominal contact element (52) is fixed relative to the housing (4); a first arcing contact element (62) and a second arcing contact element (72) adapted for selectively carrying or interrupting an arcing current between them, wherein the first arcing contact element (62) and the second arcing contact element (72) are movable along the axis (2); a first gear (20) coupling the first nominal contact element (42) and the first arcing contact element (62) to each other such that for circuit breaking the first nominal contact element (42) and the first arcing contact element (62) are both moved in a first direction along the axis (2); and a second gear (30) coupling the second arcing contact element (72) to one of the first nominal contact element (42) and the first arcing contact element (62) such that for circuit breaking the second arcing contact element (72) moves in a second direction along the axis (2) opposite to a first direction.
Description
Technical field
Each aspect of the present invention relates to circuit breaker, particularly relates to gas-insulated type circuit breaker.Other aspect relate to there is gas-insulated housing, this circuit breaker of a pair of nominal contact and a pair of arcing contact.Other aspect relates to the method for carrying out interrupt circuit with gas insulation breaker, and high voltage or medium voltate switching device.
Background technology
Gas-insulated type circuit breaker is a kind of electric device, and it is arranged on power line, to carry out normal switch when operation under normal current, or when the electric current that breaks down (such as earth fault or short circuit), blocks safely (interruption) electric current.Gas-insulated type circuit breaker has housing, and housing holds dielectric gas, and such as sulphur hexafluoride (SF6), dielectric gas makes voltage transmission member spaced, and separates with ground voltage, and reduces to have in compact housing the risk of high electrical breakdown.
Circuit breaker has two nominal contact elements, they be arranged to carry out in the closure state of circuit breaker normal operation during, normal current (rated value is up to nominal current value) mainly transmits by these nominal contact elements.
When circuit breaker interruptive current, that is, while carrying out escape operation, during the first stage, nominal contact elements is separated from each other (by one in mobile for example nominal contact), and current transfer is to two arcing contact elements that still contact with each other during the first stage thus.In the near future, during second stage, arcing contact elements also separates, and forms thus electric arc.Then, during the phase III, arcing contact elements is further separated from each other, and a part for dielectric gas is towards arc spraying, with extinguish arcs.
Circuit breaker can comprise fixation side and drawer at movable side, makes in order to separate a pair of contact, and the only movement in contact, another is fixing.Alternatively, there is all circuit breakers movably of contact on both sides.The example of this circuit breaker is called as complete two action breaker in this article, and this has demonstration in DE 19730583.This circuit breaker has two drawer at movable sides, and each side all has nominal contact and arcing contact.In each side, nominal contact and arcing contact are connected to each other rigidly, and two contacts of corresponding side are always moved with identical speed.Therefore, must move large quality and carry out interruptive current.Thereby this pair of action breaker has longer break period.In addition, EP 1211726 has described a kind of switching device, and wherein, main contact is connected on arcing contact, and main contact is always moved with the speed identical with arcing contact.And, there is the contact of permission to see that from dielectric viewpoint the switching device that favourable mode is moved is synergistically generally desirable.As from can finding out above discussion, need a kind of break period of shorter improved circuit breaker.
Summary of the invention
Consider above, provide circuit breaker according to claim 1, switching device according to claim 14, and method according to claim 15.According to dependent claims, description and figure, additional advantage, characteristic aspect and the details that can be combined with embodiment described herein are obvious.
According to first aspect, a kind of gas-insulated type circuit breaker comprises: the housing that is defined for the gas volume of dielectric insulation gas; The first nominal contact elements and the second nominal contact elements, they are suitable between them, optionally transmitting or blocking-up nominal current, wherein, the first nominal contact elements can move along the axis of circuit breaker, and the second nominal contact elements is fixed with respect to housing; The first arcing contact elements and the second arcing contact elements, they are suitable for optionally transmitting between them or blocking-up arcing electric current, and wherein, the first arcing contact elements and the second arcing contact elements can move along axis; The first transmission device, it is coupled to each other the first nominal contact elements and the first arcing contact elements, makes for interrupt circuit, and the first nominal contact elements and the first arcing contact elements all move along first direction along axis; And second transmission device, it is connected to the second arcing contact elements in the first nominal contact elements and the first arcing contact elements, make for interrupt circuit, the second arcing contact elements moves along the second direction contrary with first direction along axis.In this article, when statement is for interrupt circuit, when two elements all move along equidirectional, this does not infer and must carry out the motion of equidirectional at whole circuit intercourse.Element moves just enough during certain part of circuit interruption along equidirectional, for example, surpass for 50% time, or even surpasses for 80% time; Or, for example, 50% or even 80% of the path of the element of the transmission device of two elements of driving connection.
According to second aspect, provide a kind of method of carrying out interrupt circuit with gas insulation breaker.The method comprises: by driver element, the axis from moving contact element along circuit breaker being moved along first direction, is the first nominal contact elements of circuit breaker and the first arcing contact elements from moving contact element; By the first transmission device that the first nominal contact elements and the first arcing contact elements are coupled to each other, movement from moving contact element is delivered to another the first nominal contact elements and the first arcing contact elements, thereby another contact elements is moved along first direction along axis; By means of the second arcing contact elements of circuit breaker is connected to the second transmission device from moving contact element, transmit the movement from moving contact element, thereby the second arcing contact elements is moved along the second direction contrary with first direction along axis; The first nominal contact elements and the second nominal contact elements that all remains on place, fixed position with respect to the housing of circuit breaker in whole circuit interrupts are separated; And the first arcing contact elements and the second arcing contact elements are separated.
Because two arcing contacts can both move, so compare with the circuit breaker that only contact moves, the merit from drive source that can be still less obtains high relative velocity between arcing contact.In addition, because the second nominal contact is fixed, so compare with complete two action breakers, be moved quality and reduce.In addition, especially due to the first transmission device, can select separately the speed of (particularly selecting in advance) contact, thereby allow contact advantageously to move.
Accompanying drawing explanation
Be described below with reference to the accompanying drawings more details, wherein
Fig. 1 is according to the cross-sectional schematic side view of the circuit breaker of the first embodiment;
Fig. 2 is according to the cross-sectional schematic side view of a part for the circuit breaker of the second embodiment; And
Fig. 3 a to 3e is the schematic enlarged side view of the contact elements of the circuit breaker during the different phase of interruptive current.
Embodiment
Now will be in detail with reference to various embodiment, in the one or more examples of embodiment shown in each figure.Mode with explanation provides each example, and they are not meant to as restriction.For example, be illustrated as or be described as the feature of a part of an embodiment can be in office what in its embodiment, use or combining use with them, to produce another embodiment.What be intended to is that the disclosure comprises such modification and modification.
In the following description of accompanying drawing, same reference numerals is indicated same or analogous member.Substantially, the difference about independent embodiment is only described.Unless otherwise prescribed, otherwise the description of the part in an embodiment or aspect is applicable to corresponding part or the aspect in another embodiment.
With reference to Fig. 1, will describe according to the circuit breaker 1 of the first embodiment.Circuit breaker 1 is gas-insulated type, and correspondingly has housing 4, and housing 4 is defined for the gas volume of dielectric insulation gas.Housing 4 allows insulating gas to remain on wherein in air-locked mode.In addition, circuit breaker 1 has the first nominal contact assembly 40, the second nominal contact assembly 50, the first arcing contact assembly 60 and the second arcing contact assembly 70.According to the first embodiment, all these elements described herein and more element are all arranged in the inside of housing 4.
The first nominal contact assembly 40 is cylindrical, and typically Qi end has the first nominal contact elements 42.Equally, the second nominal contact assembly 50 is cylindrical, and typically Qi end has the second nominal contact elements 52. Contact elements 42,52 can be a part for cylindrical contact assembly, and for example can pass through surface treatment, or (for example passes through spring members) in addition in known manner through transformation, to improve contact, and reduces contact resistance.
When breaker closing, as shown in Figure 1, the first nominal contact elements 42 contacts with electric power in direct machinery each other with the second nominal contact elements 52, to transmit nominal current between them.On the contrary, when circuit breaker disconnects, (be further described below the details about disconnecting), the first nominal contact elements 42 and the second nominal contact elements 52 are separated from each other, thus and blocking-up electric power contact.After this manner, nominal contact elements is suitable between them optionally transmitting or blocking-up nominal current, that is, when circuit breaker is during in closed structure, transmit electric current, and when circuit breaker is when disconnecting structure, block electric current.
The first arcing contact assembly 60 have the first arcing contact elements 62, the first arcing contact elements 62 in shape as for example tulip, and be typically arranged in the first arcing contact assembly 60 end.Equally, the second arcing contact assembly 70 have the second arcing contact elements 72, the second arcing contact elements 72 in shape as for example bar, and be typically arranged in the second arcing contact assembly 70 end.In addition, have nozzle system 64, particularly from jet-propelled nozzle system 64, it can typically be connected on the first arcing contact assembly 60, makes can jointly move along axis 2 and the first arcing contact elements 62 from jet-propelled nozzle system 64.
The first nominal contact elements 42 and the second nominal contact elements 52 and the first arcing contact elements 62 and the second arcing contact elements 72 can advantageously be arranged to about the axis 2 of circuit breaker coaxial.The first nominal contact elements 42, the first arcing contact elements 62 and the second arcing contact elements 72 can move with together with their corresponding contact assembly 40,60,70 along axis 2.
In addition, driver element 10 is connected to the first nominal contact assembly 40 by for example bar 12, thereby and is connected on the first nominal contact elements 42.Thereby for interrupt circuit, driver element 10 can pass through bar 12, moves the first nominal contact elements 42 to the left side.The first transmission device 20 is connected to the first nominal contact assembly 40 on the first arcing contact assembly 60, thereby and the first nominal contact elements 42 is connected on the first arcing contact elements 62.The first transmission device 20 is connected to the first nominal contact elements 42 on the first arcing contact elements 62, makes when the first nominal contact elements 42 is pulled to the left side, and the first arcing contact elements 62 is also pulled to the left side.In other words, at least for some positions of the first nominal contact elements 42, and may be for all positions, the first transmission device 20 has positive drive ratio.
In addition, the second transmission device 30 is connected on the first arcing contact elements 62 the second arcing contact elements 72 (preferably by jet nozzle system 64, as shown in Figure 1) by for example bar 14.The second transmission device 30 has negative gearratio, makes when the first arcing contact elements 62 moves to left, and the second arcing contact elements 72 correspondingly moves to right, and vice versa.
Thereby driver element 10 is connected on the first nominal contact elements 42 by for example bar 12, and be connected on the first arcing contact elements 62 by for example transmission device 20.In addition, driver element 10 is also connected on the second arcing contact elements 72 by the first transmission device 20 and the second transmission device 30.
On the other hand, the second nominal contact elements 52 (and whole second contact assembly 50) is fixing with respect to housing 4, as schematically indicated in the dash area in Fig. 1.
Driver element 10 is arranged on the sidepiece place of circuit breaker 1, and the first nominal contact elements 42 and the first arcing contact elements 62 are arranged on this sidepiece.In other words, the first nominal contact elements 42 be positioned to along axis 2 to the second nominal contact elements 52 more towards or near driver element 10, the first arcing contact elements 62 be positioned to than the second arcing contact elements 72 more towards or near driver element 10.
Fig. 1 shows that circuit breaker is in closure state.In this closure state, the first arcing contact elements 62 (be for example here tulip shape contact 62) for example, contacts with electric power in direct machinery each other with the second arcing contact elements 72 (being rod contact 72 here).
For cut-off breaker, driver element 10 pulls to the left side by for example bar 12 by the first nominal contact elements 42, or more generally, along first direction, pulls the first nominal contact elements 42.Therefore, the first nominal contact elements 42 is also referred to as from moving contact element 42.By this, move, the first nominal contact elements 42 separates with the second nominal contact elements 52.Now, arcing contact elements 62,72 still contacts with electric power in machinery each other, and electric current is transferred to arcing contact elements 62,72 from nominal contact elements 42,52.
The first transmission device 20 is connected to the movement of the first nominal contact elements 42 on the first arcing contact elements 62, thereby the first arcing contact elements 62 is also pulled to the left side,, is pulled to first direction that is., by the second transmission device 30, the second arcing contact elements 72 that the second arcing contact elements 72 are connected on the first arcing contact elements 62, along opposite direction, be pulled meanwhile, that is, be pulled to the right, or more generally, along second direction, be pulled.Thereby one (short) period after nominal contact elements is opened for 42,52 minutes, the first arcing contact elements 62 separates with the second arcing contact elements 72.Then the electric arc occurring between arcing contact elements 62,72 extinguished by air blowing in the generally acknowledged mode of those skilled in the art in nozzle system 64.
During the whole interrupt routine of circuit breaker, the second nominal contact elements 52 remains on place, fixed position with respect to housing 4.As the advantage of this layout, because the second nominal contact elements 52 is fixed, so the reaction force acting on driver element 10 reduces.Thereby the kinetic energy essential for high speed operation reduces.The Mechanical Reliability of block device is also improved.
When circuit breaker 1 has disconnected, nominal contact elements 42,52 and arcing contact elements 62 and 72 are separated from each other, and the electric arc between arcing contact elements 62 and 72 is extinguished.Thereby, electric power contact blocking-up.
Next, the exemplary embodiment of the first and second transmission devices 20,30 is described in more detail.As shown in Figure 1, the first transmission device 20 is the pivot transmission devices with lever 21, and lever 21 is installed on housing 4, can be around pivotal axis 22 pivotables.In Fig. 1, exemplarily suppose that lever 21 and lever cited below 31 are double-arm levers, between their lever arm, there is fixing angle.Chaining part 23 is located to be pivotally mounted on lever 21 at a lever arm 24a (particularly end 24a), and is installed on the first nominal contact assembly 40 at 24b place, another end.Another chaining part 25 is located to be pivotally mounted on lever 21 at another lever arm 26a (particularly end 26a), and is installed on the first arcing contact assembly 60 at 26b place, another end.The second transmission device 30 is provided in a similar fashion, lever 31 is installed to can be around pivotal axis 32 pivotables on housing 4, chaining part 33 is located to be pivotally mounted on lever 31 at a lever arm 34a (particularly end 34a), and be installed on bar 14 at 34b place, another end, another chaining part 35 is located to be pivotally mounted on lever 31 at another lever arm 36a (particularly end 36a), and is installed on the second arcing contact assembly 70 at 36b place, another end.
The first transmission device 20 and the second transmission device 30 that in Fig. 1, show have variable gear ratio,, depend on the gearratio of the position of the element connecting by transmission device 20,30 that is.The gearratio of transmission device is defined as the distance of cell moving of drive transmission divided by the distance of the cell moving being driven by transmission device.In this article, use infinitesimal distance, and along the distance in a first direction of axis for just, and distance is in the opposite direction for negative.For example, the gearratio of the first transmission device 20 is the distance that distance that the first arcing contact assembly 60 moves moves divided by the first nominal contact assembly 40.
Especially, the gearratio of the first transmission device 20 (being also referred to as the first gearratio) is along with the first nominal contact elements 42 and/or the first arcing contact elements 62 are along the position of axis 2 and change.Similarly, the gearratio of the second transmission device 30 (being also referred to as the second gearratio) is along with the first nominal contact elements 42 and/or the second arcing contact elements 62 are along the position of axis 2 and change.
In the make position showing in Fig. 1, the first transmission device 20, end 22,26a and 26b basically form straight line.When circuit breaker 1 disconnects and when the first nominal contact assembly 40 is pulled to the left side, pivotable that lever 21 is counterclockwise, makes the first arcing contact assembly 60 be moved to the left side by the first transmission device 20.Thereby, the first transmission device 20 is coupled to each other the first nominal contact elements 42 and the first arcing contact elements 62, makes the first nominal contact elements 42 and the first arcing contact elements 62 all mobile along identical direction (the Shi Chao left side here) at whole circuit intercourse.In other words, the first transmission device 20 just has (or may be temporarily zero) gearratio at whole circuit intercourse.
This embodiment illustrates another general aspect, and wherein, the gearratio of the first transmission device 20 increases gradually at circuit intercourse.In the first transmission device 20, select the geometrical construction of lever 21 and chaining part 23,25, gearratio has just been started little, that is, when starting, arcing contact assembly 60 is mobile little distance only.Along with the first nominal contact assembly 40 moves to left, gearratio increases gradually.Especially, as general aspect, the first nominal contact 42 can move than the higher speed of arcing contact 62,72 (transmission device ratio < 1), until electric current is transferred to arcing contact elements 62,72 from nominal contact elements 42,52.Because the relative velocity of nominal contact 42,52 is greater than the relative velocity of arcing contact 62,72, so arcing contact elements 62,72 can be separated from each other after nominal contact elements 42,52, and does not need arcing contact elements 62,72 to carry out long crossover along axial direction.This can realize compared with the short interruptions time during being illustrated in disconnection and closed procedure, and the frictional force reducing.
Another advantage increasing gradually as gearratio, the Main Stage that nominal contact elements 42 is accelerated and arcing contact elements 62 is accelerated appears at different time, that is, in different time windows, even if make in the situation that the power limited of driver element 10 also can be realized efficient acceleration.In a particularly advantageous embodiment, can in two AC circulations, realize circuit interrupt operation.
Only the mode with example shows the first transmission device 20 and the second transmission device 30.Can use the transmission device that connects two linearly moving other types, but not level type the first transmission device 20 and the second transmission device 30 that in Fig. 1, show.
The bar 14 of drive transmission 30 is connected in jet nozzle system 64.In this article, if state that an element is connected on another element, this not necessarily represents that element is directly attached to each other.But can represent that element connects by intermediary element.For example, because bar 12 is connected in jet nozzle system 64, so bar 14 can think to be equally connected on the first arcing contact elements 62 because arcing contact elements 62 itself is connected in jet nozzle system 64.Equally, when statement in this article, for example, when transmission device is coupled to each other the first element and the second element, this comprises that transmission device makes to be connected to the element on the first element and is connected to the situation that the element on the second element is coupled to each other.
Alternatively, not be connected to the first arcing contact elements 62 or be connected on some parts on the first arcing contact elements 62, but bar 14 also can be connected on bar 12 or (being also like this in the embodiment in figure 1) first nominal contact assembly 40, thereby and be connected on the first nominal contact elements 42.
Fig. 2 shows according to a part for the circuit breaker of the second embodiment.Circuit breaker is similar to the circuit breaker of Fig. 1, except the first transmission device 20.In order to describe other element, with reference to Fig. 1 and description thereof.In Fig. 2, the first transmission device 20 is arranged so that the first stage (first the first nominal contact elements 42 moves to left along with the counterclockwise pivot being associated of lever 21) of interrupting at circuit dimensionally, and the first arcing contact elements 62 moves to right.Only lever 21 be pivoted into make joint 26a move through jointing 22 and 26b line (, axis 2 in process Fig. 2) after degree, the direction of the first arcing contact elements 62 is just reversed, and the first arcing contact elements 62 is moved to left.In other words, the first transmission device 20 limits the place, ，Gai dead point, dead point of the motion of the first arcing contact, and the symbol of the gearratio of the first transmission device 20 just becomes from negative.In the embodiment of Fig. 2, the first acquisition dead point, nominal contact elements 42 position (referring to Fig. 1) at the first nominal contact elements 42 and the second nominal contact elements 52 before separately.
The advantage at this dead point is, arcing contact elements 62,72 crossovers along axial direction can further reduce, and nominal contact elements 42 is accelerated and the Main Stage of arcing contact elements 62 acceleration can further be thrown off, because near dead point, arcing contact elements 62 only has very little acceleration.
Now, with reference to Fig. 3 a to 3e, the different mobile phases for interruptive current of phase contact elements 42,52,62 and 72 have been shown.These mobile phases illustrate the advantageously selected gearratio of the first transmission device 20 of showing in Fig. 1 and 2 and the second transmission device 30.
Fig. 3 a shows that circuit breaker is in closed structure, and this is similar to the structure of Fig. 1 and 2.Therein, nominal contact elements 42,52 contacts with each other, and arcing contact elements 62,72 also contacts with each other.Electric current mainly transmits by nominal contact elements 42,52, and this is contrary with arcing contact elements 62,72.
In the first stage of interrupting at circuit (movement between Fig. 3 a and Fig. 3 b), the speed of the speed ratio first arcing contact elements 62 of the first nominal contact elements 42 is faster, and correspondingly, the first nominal contact elements 42 has moved sizable distance with respect to the second nominal contact elements 52, and does not almost relatively move between arcing contact elements 62 and 72.
In the structure showing in Fig. 3 b, nominal contact elements 42,52 is separated from each other, and any residual current having flow through between them is all transferred to arcing contact elements 62,72.
In the second mobile phase between Fig. 3 b and 3c, arcing contact elements 62 and 72 significantly accelerates, and under high speed be separated from each other: now, the relative velocity between arcing contact elements 62 and 72 becomes and is greater than the speed of the first nominal contact elements 42.Along with arcing contact elements 62 and 72 is separated from each other, between them, form electric arc (not shown).
The first arcing contact 62 and the second arcing contact 72 are proceeded to move faster during leading to the phase III of Fig. 3 d.And electric arc (not shown) is extinguished by jet nozzle system.And, to compare with the speed (particularly relative velocity) of arcing contact 62,72, the first nominal contact elements 42 continues to move away from the second nominal contact elements 52 with lower speed.
Fig. 3 e shows that circuit breaker is in complete open position, and wherein, nominal contact elements 42,52 and arcing contact elements 62,72 are separated from each other to greatest extent, and wherein, electric arc extinguishes.
Fig. 3 a to 3e also illustrates some general favourable aspects of embodiment:, for example, in the very first time (time of Fig. 3 c), the first nominal contact elements 42 moves fartherly towards first direction than the first arcing contact elements 62.Afterwards, for example, at the second time durations (time of Fig. 3 e), the first arcing element 62 moves far equally or moves fartherly than the first nominal contact elements 42 towards first direction and the first nominal contact elements 42.This has reflected the non-constant gearratio of the first transmission device 20.Thereby the electric field at arcing contact elements 62,72 places exposes during electric arc forms, but conductively-closed afterwards reduces the risk of high electrical breakdown afterwards.In other words, the movement of contact is coordinated, and particularly due to the first transmission device 20, makes to obtain desirable attribute in dielectric at various mobile phases.
As on another general aspect ， final position (referring to Fig. 3 e), the second arcing contact elements 72 moves fartherly towards second direction than the second nominal contact elements 52.As another general aspect, when electric arc at least forms after or even whole circuit intercourse, the second arcing contact elements 72 to the second nominal contact elements 52 are located fartherly towards second direction.This second arcing contact elements 72 that again makes to retract is radially surrounded and the favourable dielectric barrier of the second nominal contact elements 52 of projection vertically.
Circuit breaker 1 described herein is particularly advantageous for high voltage or medium voltate application.In this article, medium voltate is defined as the voltage higher than 1 kV, and high voltage is defined as higher than for example voltage of 35 kV, such as 52 kV and Geng Gao.
Although aforementioned for embodiment, can be susceptible to other and other embodiment, and not depart from the definite base region of claim.
For example, the embodiment showing in Fig. 1 and 2 can change in the following areas: bar 12 is connected to driver element 10 on the first arcing contact elements 62, but not as in Figure 1 driver element 10 is connected on the first nominal contact elements 42.Then, driver element 10 directly drives the first arcing contact elements 62, and indirectly drives the first nominal contact elements 42 by the first transmission device 20.And independently in this, bar 14 can be connected to the second transmission device 30 on the first arcing contact elements 62, but not is connected to as mentioning about Fig. 2 on bar 12.Then the second transmission device 30 is connected to the second arcing contact elements 72 on the first arcing contact elements 62.In addition, although shown that the first arcing contact elements 62 is tulip shape, and shown that the second arcing contact elements 72 is rod, also can use different shapes.For example, the first arcing contact elements 62 can be rod, and the second arcing contact elements 72 can be tulip shape.
Claims (15)
1. a gas-insulated type circuit breaker (1), comprises
Be defined for the housing (4) of the gas volume of dielectric insulation gas;
The first nominal contact elements (42) and the second nominal contact elements (52), they are suitable between them, optionally transmitting or blocking-up nominal current, wherein, described the first nominal contact elements (42) can be mobile along the axis (2) of described circuit breaker (1), and described the second nominal contact elements (52) is fixing with respect to described housing (4);
The first arcing contact elements (62) and the second arcing contact elements (72), they are suitable for optionally transmitting between them or blocking-up arcing electric current, wherein, described the first arcing contact elements (62) and described the second arcing contact elements (72) can be mobile along described axis (2);
The first transmission device (20), it is coupled to each other described the first nominal contact elements (42) and described the first arcing contact elements (62), make for interrupt circuit, described the first nominal contact elements (42) and described the first arcing contact elements (62) both move along first direction along described axis (2); And
The second transmission device (30), it is connected to described the second arcing contact elements (72) in described the first nominal contact elements (42) and described the first arcing contact elements (62), make for interrupt circuit, described the second arcing contact elements (72) moves along the second direction contrary with first direction along described axis (2).
2. circuit breaker according to claim 1, it is characterized in that, described the first transmission device (20) has the first gearratio, and described the first gearratio is along with described the first nominal contact elements (42) changes along the position of described axis (2).
3. circuit breaker according to claim 2, it is characterized in that, during the first stage that described the first gearratio is chosen to make to interrupt at circuit, the speed of described the first nominal contact elements (42) is faster than the speed of described the first arcing contact elements (62), and during the second stage of interrupting at circuit, the speed of described the first nominal contact elements (42) is slower than the speed of described the first arcing contact elements (62), and described second stage is after the described first stage.
4. according to the circuit breaker described in any one in aforementioned claim, it is characterized in that, during the first gearratio of described the first transmission device (20) is set the final stage that makes at least to interrupt at circuit for, described the first arcing contact elements (62) is fartherly more mobile than described the first nominal contact elements (42) towards described first direction.
5. according to the circuit breaker described in any one in aforementioned claim, it is characterized in that, described the second transmission device (30) has the second gearratio, and described the second gearratio is along with described the second arcing contact elements (62) changes along the position of described axis (2).
6. according to the circuit breaker described in any one in aforementioned claim, it is characterized in that, further comprise driver element (10), and described driver element (10) is connected to the bar (12) in described the first nominal contact elements (42) and described the first arcing contact elements (62), make for circuit interrupts, described driver element (10) pulls described in described the first nominal contact elements (42) and described the first arcing contact elements (62) by described bar (12) along described first direction.
7. circuit breaker according to claim 6, is characterized in that, described driver element (10) is arranged in executive circuit interrupt operation in two AC circulations dimensionally.
8. according to the circuit breaker described in any one in claim 6 and 7, it is characterized in that, described the first nominal contact elements (42) is positioned to respect to described the second nominal contact elements (52) more towards described driver element (10), and wherein, described the first arcing contact elements (52) is positioned to respect to described the second arcing contact elements (72) more towards described driver element (10).
9. according to the circuit breaker described in any one in claim 6 to 8, it is characterized in that, described bar (12) is connected to described driver element (10) on described the first nominal contact elements (42), and wherein, described the second transmission device (30) is connected to described the second arcing contact elements (72) on described the first nominal contact elements (42).
10. according to circuit breaker described in any one in claim 6 to 8, it is characterized in that, described bar (12) is connected to described driver element (10) on described the first arcing contact elements (52), and wherein, described the second transmission device (30) is connected to described the second arcing contact elements (72) on described the first arcing contact elements (52).
11. according to the circuit breaker described in any one in aforementioned claim, it is characterized in that, the first gearratio of described the first transmission device (20) comprises the dead point of the motion of described the first arcing contact (62).
12. according to the circuit breaker described in any one in claim 1 to 10, it is characterized in that, the first gearratio of described the first transmission device (20) is set for described the first nominal contact elements (42) and described the first arcing contact elements (62) is all moved along equidirectional at whole circuit intercourse.
13. according to the circuit breaker described in any one in aforementioned claim, it is characterized in that, described circuit breaker is from jet-propelled circuit breaker, it comprises arc extinguishing nozzle (64), such as from jet-propelled nozzle (64) or buffer gas nozzle (64), and wherein, described arc extinguishing nozzle (64) be attached to following (a) or (b) in one upper:
(a) described the first arcing contact elements (62), can jointly moving along described axis (2) and described the first arcing contact elements (62);
(b) described the first nominal contact elements (42), can jointly moving along described axis (2) and described the first nominal contact elements (42).
14. according to the circuit breaker described in any one in aforementioned claim, it is characterized in that, described circuit breaker is suitable for medium voltate or high voltage.
15. 1 kinds of methods of carrying out interrupt circuit with gas insulation breaker (1), described method comprises:
By driver element (10), axis (2) from moving contact element along described circuit breaker (1) is moved along first direction, described is the first nominal contact elements (42) of described circuit breaker (1) and the first arcing contact elements (62) from moving contact element
By the first transmission device (20) that described the first nominal contact elements (42) and described the first arcing contact elements (62) are coupled to each other, the described movement from moving contact element is delivered to another described the first nominal contact elements (42) and described the first arcing contact elements (62), thereby this another contact elements is moved along described first direction along described axis (2)
By means of the second transmission device (30), the movement of one in the first nominal contact elements (42) and the first arcing contact elements (62) is delivered to the second arcing contact elements (72), thereby described the second arcing contact elements (72) is moved along the second direction contrary with described first direction along described axis (2)
Described the first nominal contact elements (42) and the second nominal contact elements (52) are separated, and described the second nominal contact elements (52) remains on place, fixed position at whole circuit intercourse with respect to the housing (4) of described circuit breaker; And
Described the first arcing contact elements (62) and described the second arcing contact elements (72) are separated.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2011/057792 WO2012155952A1 (en) | 2011-05-13 | 2011-05-13 | Double-motion gas insulated type circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103518246A true CN103518246A (en) | 2014-01-15 |
Family
ID=44626588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180070877.2A Pending CN103518246A (en) | 2011-05-13 | 2011-05-13 | Double-motion gas insulated type circuit breaker |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2707891A1 (en) |
| KR (1) | KR20140044822A (en) |
| CN (1) | CN103518246A (en) |
| WO (1) | WO2012155952A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108346547A (en) * | 2017-01-25 | 2018-07-31 | Ls 产电株式会社 | Use the twofold motion gas-insulated switchgear with multiple bars |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140175061A1 (en) | 2012-12-20 | 2014-06-26 | Abb Technology Ag | Electrical switching device with a triple motion contact arrangement |
| DE102013200914A1 (en) * | 2013-01-22 | 2014-07-24 | Siemens Aktiengesellschaft | Switching method and switching device |
| FR3001329B1 (en) * | 2013-01-24 | 2015-02-27 | Alstom Technology Ltd | DOUBLE-MOVING CONTACTS ELECTRICAL EQUIPMENT COMPRISING A TWO-LEVER RETURN APPARATUS |
| DE102014102929A1 (en) * | 2014-03-05 | 2015-09-10 | Abb Technology Ag | Gas damper for a high voltage switch |
| KR20180064776A (en) | 2016-12-06 | 2018-06-15 | 현대일렉트릭앤에너지시스템(주) | Gas insulated circuit breaker |
| KR20180064774A (en) | 2016-12-06 | 2018-06-15 | 현대일렉트릭앤에너지시스템(주) | Gas insulated circuit breaker |
| GB2593932A (en) * | 2020-04-10 | 2021-10-13 | Eaton Intelligent Power Ltd | Commutating electric circuit breaker with reliable actuating mechanism and operation method thereto |
| CN114429882B (en) * | 2022-04-06 | 2022-06-21 | 宁波天安智能电网科技股份有限公司 | Double-acting switch device |
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| EP0483840A2 (en) * | 1990-11-02 | 1992-05-06 | Asea Brown Boveri Ab | High-voltage circuit breaker |
| US6462295B1 (en) * | 1999-01-20 | 2002-10-08 | Siemens Aktiengesellschaft | High-voltage power circuit breaker comprising an insulating nozzle |
| KR20020076019A (en) * | 2001-03-27 | 2002-10-09 | 한국전기연구원 | Bidirectional operation type gas circuit breaker |
| CN101238534A (en) * | 2005-08-10 | 2008-08-06 | Abb研究有限公司 | Self-blast circuit breaker with control body |
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| DE19730583B4 (en) | 1996-08-01 | 2007-06-21 | Areva Energietechnik Gmbh | Air blast switch |
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2011
- 2011-05-13 EP EP11721282.9A patent/EP2707891A1/en not_active Withdrawn
- 2011-05-13 CN CN201180070877.2A patent/CN103518246A/en active Pending
- 2011-05-13 WO PCT/EP2011/057792 patent/WO2012155952A1/en active Application Filing
- 2011-05-13 KR KR1020137033124A patent/KR20140044822A/en not_active Application Discontinuation
Patent Citations (6)
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|---|---|---|---|---|
| EP0483840A2 (en) * | 1990-11-02 | 1992-05-06 | Asea Brown Boveri Ab | High-voltage circuit breaker |
| US6462295B1 (en) * | 1999-01-20 | 2002-10-08 | Siemens Aktiengesellschaft | High-voltage power circuit breaker comprising an insulating nozzle |
| KR20020076019A (en) * | 2001-03-27 | 2002-10-09 | 한국전기연구원 | Bidirectional operation type gas circuit breaker |
| CN101238534A (en) * | 2005-08-10 | 2008-08-06 | Abb研究有限公司 | Self-blast circuit breaker with control body |
| EP2063442A1 (en) * | 2007-11-20 | 2009-05-27 | ABB Technology AG | Power switch with flexible conductors |
| KR101024671B1 (en) * | 2009-06-05 | 2011-03-25 | 주식회사 효성 | Gas Insulation switchgear |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108346547A (en) * | 2017-01-25 | 2018-07-31 | Ls 产电株式会社 | Use the twofold motion gas-insulated switchgear with multiple bars |
| US10043622B1 (en) | 2017-01-25 | 2018-08-07 | Lsis Co., Ltd. | Gas-insulated switch gear using dual motion with multi-lever |
| CN108346547B (en) * | 2017-01-25 | 2019-11-05 | Ls 产电株式会社 | Use the twofold motion gas-insulated switchgear with multiple bars |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012155952A1 (en) | 2012-11-22 |
| EP2707891A1 (en) | 2014-03-19 |
| KR20140044822A (en) | 2014-04-15 |
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Application publication date: 20140115 |