CN102187417A

CN102187417A - Electric switching apparatus provided with two switches, such as a busbar sectionalising switch and an earthing switch, and including a driving means common to the mobile contacts of the switches

Info

Publication number: CN102187417A
Application number: CN2009801408354A
Authority: CN
Inventors: 卢卡斯·特赖尔
Original assignee: Areva T&D SAS
Current assignee: GE Grid Switzerland GmbH; Grid Solutions SAS
Priority date: 2008-10-14
Filing date: 2009-10-13
Publication date: 2011-09-14
Also published as: EP2335262A1; WO2010043604A1; FR2937177A1; FR2937177B1; KR20110079836A

Abstract

The invention relates to the control of an electric switching apparatus that includes two switches such as a busbar sectionalising switch and an earthing switch. The invention comprises: a rotation control shaft; two toggle members each including two levers hinged together, one of the hinged levers (2210, 2211) being connected to the control shaft (220) and the other (2220, 2221 or 2250, 2251) being connected to one of the mobile contacts (200, 210). The mechanism of the invention makes it possible to obtain a driving neutral point by aligning the pivot axes (222, 223 or 222, 225 or 225, 226) of the levers with the rotation axis of the control shaft when each mobile contact (200, 210) is close to or in the closed position thereof.

Description

Have as two circuit breakers of bus isolating switch and earthing isolator and comprise the electric switch utensil of the actuator devices that the removable contact of circuit breaker is shared

Technical field

The present invention relates to the switch apparatus field, this switch apparatus has two circuit breakers, as bus isolating switch and earthing isolator.

More specifically, the present invention relates to the switch apparatus of described type, wherein include by stationary contacts and a pair of contact formed with the contact that rectilinear motion mode moves, so that when switching manipulation, be separated from each other such as each circuit breaker of isolating switch.

The main application is the medium-pressure or high pressure switchgear, and wherein bus isolating switch and earthing isolator are arranged in the insulated case, and each insulated case is filled with dielectric gas under protective atmosphere, as SF ₆

Background technology

The mechanically actuated operation of carrying out in such utensil normally independently and by two independent mechanical control units is carried out, and described mechanical control unit is by mechanical interlocks or the control of Electricity Federation locking device.

The purpose of these interlocks is to guarantee the safety of personnel and equipment, keep disconnection to operate described interlock by the position that when earthing isolator is in closure state, allows bus isolating switch, because when on main circuit voltage being arranged, earthing isolator necessarily can not be closed.

Past advises, utilizes single Spin Control axle to activate such as each the removable contact in two independent circuit breakers of bus isolating switch and earthing isolator.Especially, be known that and utilize single rotating shaft to activate two removable contact moving linearlies.

Document EP 0735637B1 has described a kind of two bus isolating switchs 25,35 that have in its execution mode shown in Figure 8; 29,36 switch apparatus, each in two contacts 35 that wherein move with rectilinear motion mode and 36 is connected to the bar 45 with single arm by straight substantially (generally straight) coupling bar 42,43.This bar 45 self is fixed in rotating shaft 21, and the rotation of this rotating shaft is positioned at the intersection point place of the respective straight axis of movement of contact 35 and 36.

Document EP 1082791B1 has also described a kind of switch apparatus that comprises bus isolating switch 53,51 and earthing isolator 55,16 in its execution mode shown in Figure 2, two contacts 53 that wherein move with rectilinear motion mode and 55 respectively are connected to the bar 71 with single arm by the connection rod or the coupling bar 74,75 of a basic flat shape.This bar 71 self is fixed in rotating shaft 7, the respective straight axis of movement partition distance a1 and the a2 of the rotation of this rotating shaft and contact 53 and 55.

Document EP 1068659B1 has described a kind of two circuit breakers 25,22,23 that have in its execution mode shown in Figure 2; 24,22,23 switch apparatus wherein is connected to the bar 61 with single arm with the single contact 22 that rectilinear motion mode moves by the pin 26 that is arranged in the contact 22.This bar 61 self is fixed in rotating shaft 5, and the rectilinear motion axis of the rotation of this rotating shaft and removable contact 22 separates.Gearratio (linear thread (linear stroke) that can mobile contact 22 and rotating shaft 5 rotate the ratio between the angle (sweep angle) of scanning of processes) and parallelogram of forces (parallelogram) were not optimised near make position (getting final product mobile contact 22 and corresponding stationary contacts 23 or the position that is bonded with each other with stationary contacts 24) time.This height ratio makes that being necessary to apply high moment of torsion makes axle 5 rotations.In addition, radial load acts on the removable contact 22 near make position the time, and this has and causes removable contact with the risk that pivots.

The top structure that the switch apparatus of describing in the document is discussed all has defective, promptly when removable contact is in its make position, just when they when corresponding stationary contacts is bonded with each other, on rotating shaft, produce a reaction force.In other words, the load of not expecting is applied on the actuator of rotating shaft and its upstream, and this actuator applies axle and rotatablely moves.And the structure of described utensil is not optimized at the use under the unusual high-pressure situations, hides (dielectric shrouding) because be difficult to realize the medium of each actuated element (yet i.e. axle, bar or a plurality of bar and coupling bar).

Summary of the invention

The objective of the invention is to reduce whole or in part the defective of the controlling organization of switch apparatus known, that have two circuit breakers (as earthing isolator and bus isolating switch) at present, the actuator devices of the shared described circuit breaker of wherein removable contact.

More particularly, the objective of the invention is to propose a kind of controlling organization that is used for the above-mentioned type switch apparatus, this controlling organization has the common actuation apparatus, wherein Spin Control axle at first and secondly between each contact that moves with rectilinear motion mode the transmission to power be optimized.

Particularly, the objective of the invention is to propose a kind of controlling organization that is used for the above-mentioned type switch apparatus, this controlling organization has the common actuation apparatus, this common actuation apparatus has variable gear ratio (promptly, ratio between the angular distance of straight-line distance of removable contact and the motion of Spin Control axle), this ratio has minimum value when the make position of approaching relevant isolating switch.

The present invention is further special, and purpose is to propose a kind of controlling organization that is used for the above-mentioned type switch apparatus, this controlling organization has the common actuation apparatus, make the peak torque be applied on the Spin Control axle reduce, make that also rectilinear motion axis with respect to removable contact is that horizontal power is equally little.

Another purpose of the present invention is to propose a kind of controlling organization that is used for the above-mentioned type switch apparatus, and this controlling organization has the common actuation apparatus of the little and easy assembling of size.

For this purpose, the invention provides a kind of controlling organization that is used for switch apparatus, this switch apparatus comprises at least two circuit breakers, as earthing isolator and bus isolating switch, each circuit breaker has by stationary contacts and a pair of contact formed with the contact that rectilinear motion mode moves, so that described contact is separated from each other when switching manipulation, wherein this controlling organization comprises the common actuation apparatus that activates removable contact and comprise the Spin Control axle, this common actuation apparatus makes one of them breaker closing keep another circuit breaker to disconnect simultaneously, vice versa, this controlling organization has two triggering systems, each triggering system is made up of two hinged bars, one of them hinge bar is fixed in Control Shaft, and another hinge bar is connected to one of them removable contact; This mechanism makes, when each removable contact is in or during near its make position, the layout of the rotation of Control Shaft and the geometry of triggering system, length and be arranged so that can be when activating to align with the rotation of Control Shaft and obtain dead point (dead center point) by pivot axis with described bar.

Since near or be in we can say self-retention or certainly the interlocking the trigger action that make position obtained can be used for each removable contact.Thereby removable contact all can't arrive Control Shaft at the suffered any reaction force of not expecting that is for example produced by vibration or high electric current of its make position.

In a preferred form, controlling organization further comprises the end stop bearing (end stop abutment) that is used for each triggering system, and this end stop bearing is arranged to stop that the bar that is fixed in control rod is at the place, dead point or the motion after the dead point just.

In one embodiment, the rotation of described axle is arranged in the intersection point place of the rectilinear motion axis of removable contact basically, and the common actuation apparatus comprises the member that has two arms and be fixed in Control Shaft, wherein each in two described arms is articulated in a coupling bar, this coupling bar self is articulated in removable contact, and each described triggering system is made up of an arm that is articulated in its coupling bar of described member.

Advantageously, each arm of being fixed in the member of Control Shaft is flat shape substantially, and each coupling bar of wherein being articulated in removable contact is a curved shape.Therefore, disturb by avoiding any geometry between each coupling bar and the crank thereof (crank), this allows removable contact to carry out relatively long stroke.In other words, all taking the supposition of basic flat shape to arrange with each arm of actuated components wherein with each coupling bar compares, the stroke that each removable contact is carried out is longer, this is because the angular sweep (angular sweep) of Spin Control axle can be carried out on the bigger anglec of rotation, up to 180 °.

In another embodiment, the rectilinear motion axis of the rotation of Control Shaft and removable contact separates with the angle part with minimum value of separating described axis, and the common actuation apparatus comprises a bar that is used for given removable contact, this bar is fixed in Control Shaft and is articulated in another bar that is fixed on the coupling bar, this coupling bar self is fixed in removable contact, and each triggering system is made up of a described bar and another bar.

The bar that is fixed in Control Shaft advantageously is made up of two parts that limit U-shaped, and this U-shaped defines another bar can enter wherein internal freedom space when rotated, is present in when rotated wherein to make Control Shaft to rotate to pass through about 240 ° angle.

Two described parts that limit U-shaped of bar preferably are formed in the shared integrated member.

In further execution mode, the rectilinear motion axis of the rotation of Control Shaft and removable contact separates with the angle part with minimum value of separating described axis, and the common actuation apparatus comprises the member that has two arms and be fixed in Control Shaft, wherein each in two described arms is articulated in an intermediate bar, this intermediate bar is connected to a coupling bar indirectly, this coupling bar self is articulated in removable contact, and each described triggering system is made up of an arm that is articulated in one of them intermediate bar of described member.

In this further execution mode, intermediate bar can utilize the other member that constitutes back bar (return lever) and be articulated in coupling bar indirectly.

Preferably, the rectilinear motion axis of removable contact and two bars being fixed in the Control Shaft of two triggering systems are arranged in the shared plane basically.

Advantageously, in each triggering system, its bar that is fixed in Control Shaft is such bar, and this bar rotates so that in rotary manner control is delivered to substantially in the plane that removable contact moves with rectilinear motion mode.

The present invention also provides a kind of medium-pressure or high pressure gas-insulated switch, it comprises the switch apparatus that is used at least one phase, this switch apparatus comprises case, and the removable contact and the controlling organization of two circuit breakers (such as bus isolating switch and earthing isolator) of the above-mentioned type is installed in this case at least in part.

In a modification, for each phase in the three-phase, this switch has switch apparatus, this switch apparatus comprises case, the removable contact and the controlling organization of two circuit breakers (such as bus isolating switch and earthing isolator) of the above-mentioned type are installed in this case at least in part, and this controlling organization has the Control Shaft of making, being connected to an actuator and three casees are linked together with single-piece.

Alternatively, for each phase in the three-phase, this switch has switch apparatus, this switch apparatus comprises the removable contact and the controlling organization of two circuit breakers (such as bus isolating switch and earthing isolator) of the above-mentioned type at least in part, this controlling organization has the Control Shaft of three separate part forms, described parts are connected to an actuator, and in other two parts each is linked together two adjacent casees.

Description of drawings

By below reading only by way of example and the detailed description that provides with reference to the accompanying drawings, can more be expressly understood feature of the present invention and advantage.

In the accompanying drawing:

Fig. 1 is the part perspective view of gas-insulated switch (GIS), and one of them phase 2A illustrates with section, and this switch is in ground connection (earthing) position that earthing isolator is in its make position;

Figure 1A is another part perspective view of gas-insulated switch shown in Figure 1;

Fig. 2 is the profile of the execution mode of switch apparatus 2A of the present invention, and wherein this utensil mediates;

Fig. 3 is the profile of execution mode among Fig. 2, and this utensil is in off-state (wherein bus isolating switch and earthing isolator all disconnect);

Fig. 4 is the profile of execution mode shown in Figure 2, and the utensil that illustrates here is in closure state (wherein bus isolating switch closure);

Fig. 5 is the diagram perspective drawing of an execution mode of the part of switch apparatus 2A of the present invention, and wherein removable contact is in just the position (wherein bus isolating switch closure) before it arrives dead point in closure state;

Fig. 6 is the diagram perspective drawing of an execution mode of the part of switch apparatus 2A of the present invention, and wherein removable contact is in its open position;

Fig. 6 A is the diagram perspective drawing of the part of utensil shown in Figure 7, but what illustrate here is to be in the just position before it arrives dead point make position;

Fig. 7 is the diagram perspective drawing of execution mode of the part of switch apparatus of the present invention, and wherein this utensil is in open position;

Fig. 8 to Figure 10 is the end view of switch apparatus shown in Figure 8, and wherein the every width of cloth among this three width of cloth figure illustrates the different position of the switch, promptly is respectively open position, ground connection (earthing) position and make position; And

Figure 11 is Fig. 8 to the top plan view of switch apparatus shown in Figure 10, and shows each assembly in the zone of Spin Control axle.

Embodiment

The accompanying drawing that describes below shows consistent with the present invention and goes up the switch apparatus 2A of execution switching manipulation at one pole (single pole).Undoubtedly, the layout of described switch apparatus can be recycled and reused for each utmost point of multipole combination below.

Fig. 1 illustrates the part of the threephase switch 1 with three

identical case

2A, 2B, 2C, all lays the switch apparatus consistent with the present invention in each case.These three

identical phase

2A, 2B and 2C are arranged in the shared metal box (not shown), and are fixed in an insulation board by conductor 4 (referring to Fig. 2).In addition, provide an insulation strip 5 that is fixed in these three

same cubicles

2A, 2B and 2C to be used for mechanical consolidation.

To execution mode shown in Figure 5, the earthing isolator 20 of one of them phase 2A and bus isolating switch 21 are arranged in the shared plane basically, and define 90 ° angle between them at Fig. 1.Undoubtedly, earthing isolator 20 can be different with respect to the layout of bus isolating switch 21: they can be such, and the angle between promptly limiting 70 ° to 180 ° between two isolating switches.

The removable contact 200 of a phase is arranged among the cab signal box 2A with 210 and actuator devices 22 (being also referred to as force transfering device) mutually.Each removable contact 200,210 slides in the opening 200A, the 210A that are formed at for this purpose among the case 2A respectively.Each stationary contacts 201 of earthing isolator is fixed in the inside of unshowned shared metal box.Each stationary contacts 211 of bus isolating switch is fixed in an also unshowned conductor.

Removable contact

200 and 210 and this layout of actuator devices 22 make

same case

2A, 2B or the 2C of the maximum reaction force that reaction force can be applied from the outside by restriction bear.Shared metal box is as increasing dielectric resistance and reducing the electric sheath of the live components (live elements) (that is, be under the certain voltage element) of partial discharge.This case is also as the conducting element that electric current is sent to removable contact from each conductor.

Removable contact

200 and 210 enters the inside of this case when being in its make position.

In all execution modes shown in the drawings, shown

removable contact

200 and 210 is the hollow rotating cylinder bodily form of both ends open.Stationary contacts or

electrode

201 and 211 are the hollow rotating cylinder bodily form, but they are only opening wide towards the removable contact 200 of correspondence or that side of 210.In practice of the present invention, no matter given circuit breaker is earthing isolator or bus isolating switch, near the make position of the removable contact of this circuit breaker all corresponding to

removable contact

200 or 210 is inserted in corresponding

stationary contacts

201 or 211 at least in part.

Can assemble each switch apparatus A, B, C in advance (promptly, each phase), so reduced manufacturing cost, each switch apparatus has

case

2A, 2B or 2C,

removable contact

200 and 210 and the part of the shared actuator devices 22 of removable contact (bar, pitman).

In all execution modes shown in the drawings, the common actuation apparatus 22 that is used for

removable contact

200 and 210 can make earthing isolator 20 closures when keeping bus isolating switch 21 to disconnect, and vice versa.It is that

case

2A, 2B or 2C have saved the space that

removable contact

200 and 210 is only made very a spot of mobile fact that just can enter its open position.

To first execution mode shown in Figure 4, common actuation apparatus 22 comprises Control Shaft 220 at Fig. 1, is fixed with have two

arms

2210 and 2211 member 221 of (they constitute bar) on this Control Shaft.These

bars

2210 and 2211 are flat shape substantially.In these two

bars

2210 and 2211 each is hinged with coupling bar (coupling link) 2220 or 2221 respectively at pin joint (pivotal point) 222 places, and these coupling bars are also referred to as connecting

rod.Bar

2220 and 2221 is a curved shape, and sweep also promptly is articulated in the removable contact of earthing isolator 20 and bus isolating switch 21 respectively from being articulated in corresponding removable contact 200,210 respectively in pivotal point 223 places.Because

bar

2220 and 2221 curved shape, therefore when

removable contact

200 and 210 is in open position, these bars arrange around Control Shaft 220, as Fig. 4 at shown in the bar 2220.This makes Control Shaft can rotate (scanning) by about 180 ° angle, and for the so big anglec of rotation (angular sweep), each relevant removable contact can obtain a spot of straight line and move in its position range.

In this embodiment, the rotation X of Control Shaft 220 is arranged in the intersection point place of the rectilinear motion axis of

removable contact

200 and 210 basically.Control Shaft 220 is made with single-piece (whole), passes the part of (above-mentioned) case and arrives the outside, and this axle is at first by three

case

2A, 2B and 2C supporting, and secondly the another part by this case supports.It is sealed that Control Shaft passes the passage of this case.The actuator (not shown) is arranged in the outside of this case, and controller for example is electronic mechanical and rotation Control Shaft 220.

In this embodiment, every pair of bar that is made of the

arm

2210,2211 of member 221 constitutes a triggering system with one of connecting rod 2220 and 2221.The geometry of the rotation of this triggering system and Control Shaft, length and be arranged so that each removable contact 200,210 near or can both be positioned at the place, dead point when being in described make position.Like this, near make position the time, the

pivot axis

222 and 223 of bar becomes and aligns with the rotation X of Control Shaft 220.In other words, when the removable contact 200,210 of correspondence is in its make position, arrive the dead point or pass through just this dead point (referring to Fig. 1, the wherein removable contact 200 of earthing isolator 20 and corresponding stationary contacts 201 joints; And referring to Fig. 4, wherein the removable contact 210 of bus isolating switch 21 and corresponding stationary contacts 211 engage).

Fig. 4 shows the end stop bearing 60 and 61 of machinery with diagram method, and each end stop bearing is arranged to just after arriving the dead point corresponding one in the

lever arm portion

2210,2211 of the member 221 that is fixed in Control Shaft 220 is mechanically stopped.Thereby, when removable contact 200,210 is in its make position, if

relevant triggering system

2210,2220 and 2211,2221 just through the dead point, then Control Shaft 220 is prevented from.

Lever arm portion

2210 or 2211 was stopped in before it enters joint on the corresponding end stop bearing 60 or 61 just.When removable contact 200,210 is in its make position, the active force that it may be subjected to not expecting (for example because vibration or high electric current etc. produce).Its may a little reverse displacement then, thereby causes corresponding

lever arm portion

2210 or 2211 to be rotated in the forward.This lever arm portion is stoped by corresponding end stop bearing then.

Fig. 1 is as follows to three position of the switch of switch apparatus shown in Figure 5:

Position 1: earthing isolator 20 closures, bus isolating switch disconnects (Fig. 1);

Position 2: earthing isolator 20 disconnects, and bus isolating switch disconnects (Fig. 3);

Position 3: earthing isolator 20 disconnects bus isolating switch closure (Fig. 4).

In the execution mode that Fig. 1 to Fig. 4 illustrates respectively, Control Shaft 220 has about 180 ° angular sweep and 1 forwards position 3 to from the position.

Member 221 with two

lever arm portions

2210 and 2211 can be fixed in the intermediate support of Control Shaft 22.Therefore utilize rolling bearing that this intermediate support is installed, so that it rotates in corresponding case 2A.

Control Shaft 220 can be made by insulating material, and can be made up of parts or the section 220A of portion and 220B, and the length of parts is equivalent to two adjacent distances that

phase

2A, 2B or 2B, 2C separated basically.Control Shaft 220 is made by three parts or portion's section, thereby one of them parts (not shown) stretches out and passes this case and be connected to above-mentioned actuator.It is hexagonal end that parts 220A and 220B shown in the axle can have cross section, and this end is arranged in the groove of the shape complementarity that is formed on intermediate support.

Each

lever arm portion

2210 and 2211 arranges as rotating (or swing) bar, so that power is delivered in the rectilinear motion plane of corresponding removable contact 200 or 210.This makes lateral transport power to reduce in triggering system, therefore can reduce the power train from member 221 to each contact 200 that moves with rectilinear motion mode and 210.

In execution mode shown in Figure 5, two rectilinear motion axis of the rotation X of Control Shaft 220 and

removable contact

200 and 210 separate.In two

bars

2210 and 2211 each is hinged with the intermediate member 2251 of forming bar at pin joint (pivotal point) 225 places.This bar 2251 is articulated in coupling bar 2231 at pin joint 222 places.Coupling bar 2231 is fixed in corresponding removable contact 200,210.

Each bar 2261 is a flat shape, and it constitutes a triggering system with the

arm

2210 or 2211 of member 221.Thereby this straight coupling bar 2231 plays the purpose of transmission power, and need not the part that self constitutes triggering system.

Fig. 5 illustrates multi-form bar 2211, and what wherein give this bar generally is shaped as U-shaped, and the end of its 2211i of branch and 2211j is arranged on the rotation X.

At Fig. 5 to the execution mode shown in Figure 11, Control Shaft is interrupted, that is to say that it makes (referring to Figure 11) by the form of section 220A of portion and 220B, and each

bar

2210,2211 that is fixed in Control Shaft 220 is U-shaped, and be articulated in the

bar

2250,2251 of

bar

2210,2211 when rotated can be by the free space that inside limited by U-shaped.The anglec of rotation of Control Shaft increases, and is approximately 240 °.The gearratio that the rotation of axle is moved and the straight line of removable contact is limited between moving increases, and the moment of torsion that puts on Control Shaft reduces.

When relevant isolating

switch

20 or 21 is in open position, the

straight bar

2210,2250 or 2211,2251 in arbitrary triggering system all in line, and their pivotal point 222,225 aligns with the rotation X of Control Shaft 220.

Fig. 6 and Figure 11 show the bar 2210 that is fixed in

control rod

220 and 2211 another kind of form, and each bar constitutes the part of the triggering system with feature of the present invention.In this form,

bar

2210 and 2211 is made with single-piece, that is, they are whole.

In the execution mode shown in Fig. 6 and Fig. 6 A, each bar 2210 that is fixed in

Control Shaft

220 and 2211 and

coupling bar

2220 or 2221 between be provided with two intermediate members, this coupling bar is from locating to be articulated in corresponding removable contact 200,210 in a pin joint or pivotal point (invisible among the figure).One of these intermediate members are identical with the

straight bar

2250,2251 of form shown in Figure 5, and constitute second bar of triggering system.In this form, another intermediate member is made of

other bar

2260,2261, and this other bar is mounted to the rotation Y rotation that centers on himself in case 2A, so that constitute a motion back bar.Thereby each

back bar

2260,2261 at first is articulated in

second bar

2250,2251 of triggering system at pin joint 226 places, secondly is articulated in

coupling bar

2220,2221 at pin joint 222 places.

Therefore, the triggering system in Fig. 5, Fig. 6 and Fig. 6 A illustrated embodiment is mutually the same in fact.By contrast, the form among Fig. 6 and Fig. 6 A has other back bar 2260,2261.The setting of other back bar gives the more design alternative degree of freedom for the rotation of Control Shaft with respect to the location of bus isolating switch 20 and earthing isolator 21.In addition, the distance rates between A and the B (that is to say the ratio of the arm length of back bar) is selected, this might change the rectilinear motion ratio between second bar 2251 and the corresponding removable contact 210.And then might reduce two bars 2211 in the same triggering system and 2251 length.The big degree of freedom of this rotation location, and bar 2211 in the shortening triggering system and 2251 possibility have reduced to hold the required space of common actuation apparatus of the present invention in case.In order to allow Control Shaft 220 to have angular sweep greater than 180 °, the U-shaped that bar 2210,2211 is made into as shown in Figure 5.

In the execution mode shown in Fig. 6 and Fig. 6 A, Control Shaft 220 1 forwards the required angular sweep in the position of the switch 3 to and is about 240 ° in this embodiment from the position of the switch.

Fig. 7 to execution mode shown in Figure 11 be switch apparatus as among Fig. 7, have the removable contact 200,210 and the stationary contacts 201,211 of all common actuation apparatuses and two isolating switches 20 and 21.In this embodiment, the

bar

2210,2211 that is fixed in Control Shaft 220 has advantageous forms.In this favourable modification, two

bars

2210,2211 of two triggering systems are combined into single-piece (or integrated member) together.The design variant of Control Shaft 220 also is provided.

Illustrate especially as Figure 11, the Control Shaft here is made up of several different parts, and wherein two parts 220A and 220B are arranged between two adjacent phases.More specifically, spindle unit 220A will rotatablely move and pass to two bars 2210 comprising triggering system and 2211 integrated member 221 from the actuator (not shown).Another spindle unit 220B is connected to the first axle part spare 220A by the described member 221 that comprises two

bars

2210 and 2211, and passes motion to next adjacent phase.What illustrate once more here is,

bar

2210 and 2211 is a U-shaped, thereby limits the internal freedom space along axis X between two shaft segment or parts 220A and 220B.Thereby bar 2250 and 2251 freely is moved to when it rotates in this free space, and the result makes the angular sweep of Control Shaft 220 increase.

Illustrate respectively by the position of the switch that utensil obtained in this execution mode, as follows:

Among Fig. 9, position 2 (earthing isolator 20 disconnects, and bus isolating switch 21 disconnects);

Among Figure 10, position 1 (earthing isolator 20 closures, bus isolating switch 21 disconnects);

And

Among Figure 11, position 3 (earthing isolator 20 disconnects bus isolating switch 21 closures).

The layout that the invention provides and describe in the above has lot of advantages:

Because trigger action, when one of them removable contact near or do not have reaction force to arrive Control Shaft when being in its make position;

Compare with the at present known switch apparatus that is used for bus isolating switch and earthing isolator, the required space of switch apparatus of the present invention reduces;

The required rotation torque of Control Shaft in the utensil of the present invention is compared with current known those and is reduced.Compare with the rotation torque of Control Shaft among the document EP 1068659B1, this rotation torque is reduced to 1/2nd (reduced by a factor of at least 2) at least;

Horizontal force on the removable contact in utensil of the present invention is little; And

Switch apparatus of the present invention is operated with overall safety and very reliable mode.

Claims

1. controlling organization that is used for switch apparatus (2A, 2B, 2C), described switch apparatus comprises two circuit breakers, and as earthing isolator (20) and bus isolating switch (21), each circuit breaker has by stationary contacts (201; 211) and the contact (200 that moves with rectilinear motion mode; 210) a pair of contact of Zu Chenging, so that described contact is separated from each other when switching manipulation, wherein said controlling organization comprises the common actuation apparatus (22) that activates removable contact and comprise a Spin Control axle (220), described common actuation apparatus is used to make one of them breaker closing to keep another circuit breaker to disconnect simultaneously, vice versa, and described controlling organization has two triggering systems (2210,2220; 2211,2221 or 2210,2250; 2211,2251), each triggering system is made up of two hinged bars, one of them hinge bar (2210,2211) is fixed in described Control Shaft (220), and another hinge bar (2220,2221 or 2250,2251) is connected to one of them removable contact (200,210); Described mechanism makes, when each removable contact (200,210) is in or during near its make position, the layout of the rotation of described Control Shaft (X) and geometry, the length of described triggering system and be arranged so that can be when activating to align with the rotation of Control Shaft and obtain the dead point by pivot axis (222,223 or 222,225 or 225,226) with described bar.

2. the controlling organization that is used for switch apparatus (2A, 2B, 2C) according to claim 1, further comprise the end stop bearing (60,61) that is used for each triggering system, described end stop bearing is arranged to stop that the bar (2210,2211) that is fixed in control rod is at the place, dead point or the motion after the dead point just.

3. switch apparatus (the 2A that is used for according to claim 1 and 2,2B, controlling organization 2C), wherein, the rotation (X) of described axle is arranged in the intersection point place of the rectilinear motion axis of described removable contact basically, and wherein, described common actuation apparatus (22) comprises having two arms (2210,2211) and be fixed in the member (221) of described Control Shaft (220), wherein each in two described arms is articulated in a coupling bar (2220,2221), described coupling bar self is articulated in described removable contact (200,210), each described triggering system is made up of an arm that is articulated in its coupling bar of described member.

4. the controlling organization that is used for switch apparatus (2A, 2B, 2C) according to claim 3, wherein, each arm that is fixed in the member of described Control Shaft is flat shape substantially, and wherein, each coupling bar that is articulated in removable contact is for curved nemaline.

5. switch apparatus (the 2A that is used for according to claim 1 and 2,2B, controlling organization 2C), wherein, the rotation of described Control Shaft (220) and the rectilinear motion axis of described removable contact separate with the angle part with minimum value of separating described axis, and wherein, described common actuation apparatus (22) comprises and is used for given removable contact (200,210) a bar (2211), this bar is fixed in described Control Shaft (220) and is articulated in another bar (2251) that is fixed on the coupling bar (2231), this coupling bar self is fixed in described removable contact (200,210), each triggering system is by a described bar and another bar (2211,2251) form.

6. controlling organization according to claim 5, wherein, the bar (2211) that is fixed in described Control Shaft (220) is made up of two parts (2211i, 2211j) that limit U-shaped, described U-shaped defines another bar (2251) can enter wherein internal freedom space when rotated, is present in when rotated wherein to make described Control Shaft can rotate through about 240 ° angle.

7. controlling organization according to claim 6, wherein, two the described parts (2211i, 2211j) that limit U-shaped of bar (2211) are formed in the shared integrated member.

8. switch apparatus (the 2A that is used for according to claim 1 and 2,2B, controlling organization 2C), wherein, the rotation of described Control Shaft (220) and the rectilinear motion axis of described removable contact separate with the angle part with minimum value of separating described axis, and wherein, described common actuation apparatus (22) comprises and has two arms (2210,2211) and be fixed in the member (221) of described Control Shaft (220), wherein each in two described arms is articulated in an intermediate bar (2250,2251), described intermediate bar connects (2260 indirectly, 2261) to a coupling bar (2220,2221), this coupling bar self is articulated in described removable contact (200,210), each described triggering system is by one of them intermediate bar (2250 that is articulated in of described member, 2251) a arm is formed.

9. the controlling organization that is used for switch apparatus (2A, 2B, 2C) according to claim 8, wherein, described intermediate bar (2250,2251) utilization constitutes the other member of back bar (2260,2261) and is articulated in described coupling bar (2220,2221) indirectly.

10. according to each described controlling organization that is used for switch apparatus (2A, 2B, 2C) in the aforementioned claim, wherein, the rectilinear motion axis of described removable contact (200,210) and two bars (2220,2221) of being fixed in the Control Shaft of two triggering systems are arranged in the shared plane basically.

11. according to each described controlling organization that is used for switch apparatus (2A, 2B, 2C) in the aforementioned claim, wherein, in each triggering system, the bar (2210,2211) that is fixed in described Control Shaft is such bar, and this bar rotates so that in rotary manner control is delivered to substantially in the plane that described removable contact moves with rectilinear motion mode.

A 12. medium-pressure or high pressure gas-insulated switch (GIS), it comprises the switch apparatus that is used at least one phase, described switch apparatus comprises case (2A, 2B, 2C), is equipped with at least in part in the described case such as the removable contact (200,210) of two circuit breakers of bus isolating switch (21) and earthing isolator (20) and according to each described controlling organization in the aforementioned claim.

13. gas-insulated switch according to claim 12 (GIS), for each phase in the three-phase (2A, 2B, 2C), has switch apparatus, described switch apparatus comprises case (2A, 2B, 2C), removable contact (200,210) such as two circuit breakers of bus isolating switch (21) and earthing isolator (20) is installed in the described case at least in part, and the Control Shaft of wherein said controlling organization is made with single-piece, is connected to an actuator, and described three casees are linked together.

14. gas-insulated switch according to claim 12 (GIS), for three-phase (2A, 2B, each phase 2C), has switch apparatus, described switch apparatus comprises case (2A, 2B, 2C), removable contact (200 such as two circuit breakers of bus isolating switch and earthing isolator is installed in the described case at least in part, 210), and the Control Shaft of wherein said controlling organization is three separate parts, described parts are connected to an actuator, and other two parts (220A, 220B) each is all with two adjacent case (2A, 2B) be linked together.