CN201490081U - Lightning protection device of 10KV vacuum circuit breaker - Google Patents
Lightning protection device of 10KV vacuum circuit breaker Download PDFInfo
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- CN201490081U CN201490081U CN200920168118XU CN200920168118U CN201490081U CN 201490081 U CN201490081 U CN 201490081U CN 200920168118X U CN200920168118X U CN 200920168118XU CN 200920168118 U CN200920168118 U CN 200920168118U CN 201490081 U CN201490081 U CN 201490081U
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- friction plate
- clutch friction
- vacuum circuit
- rotating shaft
- power source
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Abstract
The utility model discloses a lightning protection device of a 10KV vacuum circuit breaker, which comprises a vacuum circuit breaker body and a double-power switching mechanism, wherein the double-power switching mechanism comprises a main power source binding post arranged at the left side end of the upper surface of the vacuum circuit breaker, a stand-by power source binding post arranged at the right side end of the upper surface of the vacuum circuit breaker, a rotating shaft provided with a pore cavity, three isolating knives arranged between the main power source binding post and the stand-by power source binding post, a connecting rotating shaft, three insulated pull rods of the isolating knives and a driving mechanism for driving the rotating shaft to rotate; incoming line posts of the vacuum circuit breaker body are arranged at the middle end of the upper surface of the vacuum circuit breaker casing and the top end of each incoming line post is rotationally connected with one corresponding isolating knife; and the lightning protection device of the 10 KV vacuum circuit breaker also comprises a lightning protection device which comprises a lightning arrester fixedly arranged on the casing. The utility model has a simplified structure, can effectively carry out lightning protection whether lightning stroke points are positioned at any position of a switch and protect components inside the switch.
Description
Technical field
The utility model belongs to high-pressure vacuum breaker structure-design technique field, is specifically related to a kind of 10KV vacuum circuit-breaker lightning protection device.
Background technology
In electric power networks, there are many users to require very high to power supply reliability, for example colliery and oil plant, in a single day power outage takes place in these units, will bring great economic loss even cause casualties to unit, so in the electric power system of these units, all need to have main power source and stand-by power supply, when power outage appears in main power source, stand-by power supply must drop into immediately and restore electricity, in order to achieve this end, need between main power source and stand-by power supply, carry out manual switchover or automatic switchover by the duplicate supply switching mechanism.
Traditional duplicate supply switching mechanism is to adopt two high-tension switch cabinets to add the extremely complicated electric interlocking installation of a cover, is strictly on guard against two loop paired runnings.This duplicate supply device has following three big defectives: (1) locking is unreliable: at present, the electrical interlocks reliability is too low, forbids to use, and mechanical interlocking device country does not have unified design specification standard again, can only be designed voluntarily, be transformed by various places.(2) complicated operation, and easy jam cause electric power accident; (3) investment is big, need purchase two switch cubicles, designs locking device then, is retrofitted on the switch cubicle again.
Domestic duplicate supply switching mechanism generally is to adopt two circuit breakers at present, the end of incoming cables of every circuit breaker is connect one road power supply, leading-out terminal with two circuit breakers connects together then, and realizes main power source and stand-by power supply are switched by electric interlocking installation.The shortcoming of this duplicate supply switching mechanism is that functional reliability is relatively poor, and may cause serious accident; For example be when regular maintenance is carried out in the power failure of main power source power supply circuits, coil burnout in the circuit breaker that main power source may be connected falls, but the circuit in this circuit breaker still keeps channel status, at this moment, another circuit breaker in this kind duplicate supply switching mechanism can connect stand-by power supply at once and continue power supply, the main power source power supply circuits that will cause script should cut off the power supply like this are also charged, are easy to cause the maintenance personal who overhauls main power circuit that electric shock accidents takes place.In addition, owing to need purchase two circuit breakers, invest also bigger.
In addition, traditional duplicate supply high-voltage switch gear lacks lightning protection device, so in case generation by in the thunderbolt, will cause damage to Switch main body, serious also can cause the loss of power accident.
The utility model content
The purpose of this utility model provides a kind of 10KV vacuum circuit-breaker lightning protection device of anti-lightning strike effect preferably that has.
The technical scheme that realizes the utility model purpose is: a kind of 10KV vacuum circuit-breaker lightning protection device comprises vacuum circuit breaker body and duplicate supply switching mechanism; Described vacuum circuit breaker body comprise housing, three inlet wire posts, three vacuum interrupters, three groups of dynamic/static contacts, three outlet column and and the tripping mechanism that matches of described dynamic/static contact; Described duplicate supply switching mechanism comprises main power source binding post, the stand-by power supply binding post that is arranged on housing upper surface right-hand end, the rotating shaft that is provided with vestibule that are arranged on vacuum circuit-breaker housing upper surface left-hand end, be arranged on three isolation knife in the middle of described main power source binding post and the stand-by power supply binding post, connect three insulated tension poles of described rotating shaft and described isolation knife and drive the driving mechanism of described rotating shaft rotation; The inlet wire post of described vacuum circuit breaker body is arranged on vacuum circuit-breaker housing upper surface middle-end, also promptly is arranged on the centre of main power source binding post and stand-by power supply binding post, and the top of described each inlet wire post and a corresponding isolation knife are rotationally connected; Also comprise lightning protection device; Described lightning protection device comprises the lightning arrester that is fixedly installed on the housing.
In the technique scheme, described housing upper surface left-hand end and between described main power source binding post and described vacuum circuit breaker main inlet wire post is provided with three main power source lightning arresters that vertically are provided with; The binding post of described each main power source lightning arrester is electrically connected with a corresponding main power source binding post; On the shell wall of described housing right-hand end, be provided with the stand-by power supply lightning arrester that three along continuous straight runs are provided with; The binding post of described each stand-by power supply lightning arrester is electrically connected with a corresponding stand-by power supply binding post;
In the technique scheme, the outlet terminal of the outlet terminal of described each main power source lightning arrester and each stand-by power supply lightning arrester is electrically connected by copper bar, and described copper bar is electrically connected with earth lead; Described copper bar is fixed on the housing, and is electrically connected with housing.
In the technique scheme, the left-hand end of described housing and in the outside of described main power source binding post also is provided with a main power voltage instrument transformer; Two binding posts of this main power voltage instrument transformer are electrically connected with corresponding two main power source binding posts.
In the technique scheme, the right-hand end of described housing and between described stand-by power supply binding post and described stand-by power supply lightning arrester, also be provided with a backup power source voltage instrument transformer, two binding posts of this backup power source voltage instrument transformer are electrically connected with corresponding two stand-by power supply binding posts.
In the technique scheme, two binding posts of described main power voltage instrument transformer also are electrically connected with the input terminal of corresponding two main power source lightning arresters respectively; Two binding posts of described backup power source voltage instrument transformer also are electrically connected with the input terminal of corresponding two stand-by power supply lightning arresters respectively; Described main power voltage instrument transformer and described backup power source voltage instrument transformer are all along the setting that is inclined upwardly from the horizontal by 45 directions of spending angles.
In the technique scheme, the driving mechanism in the described duplicate supply switching mechanism is the hand-movement and motor-driven integrative operating mechanism.
In the technique scheme, described driving mechanism comprises and is used for manually operated manual handle, is used for electrically operated electric driving mechanism, is used to be implemented in the clutch of changing between manual operation and the electric operating.
In the technique scheme, described manual handle comprises the metal sleeve that is used to be set on described rotating shaft one side, be fixed in the sleeve pipe vestibule and radially run through the limit skateboard of vestibule and be fixed on the sleeve pipe radially handle.
In the technique scheme, an end that matches with described manual handle of described rotating shaft is provided with chute; The limit skateboard of described manual handle is arranged in the described chute.
In the technique scheme, described electric driving mechanism comprise motor with output wheel, by described output wheel drive and be provided with vertically vestibule driven wheel, be arranged on the drive link in the described driven wheel vestibule; Described drive link is fixedlyed connected with rotating shaft, and described driven wheel and drive link are loose fit; One end of described drive link is provided with the connecting portion, the other end that are used for fixedlying connected with rotating shaft usefulness and is provided with forced section, and the outer surface of described forced section is provided with several grooves that is provided with vertically.
In the technique scheme, described driven wheel drives described drive link by clutch and rotates to carry out electric operating.
In the technique scheme, described clutch comprises that several are set in platen, one that clutch friction component on the described drive link forced section, trip(ping) lever of fixedlying connected with handle, one be used to push the clutch friction assembly and are used for the described handle of roof pressure and are set in towards the roof pressure assembly that moves near described drive link direction, one and are used to described handle that the spring of reseting elasticity is provided in the rotating shaft; Described trip(ping) lever is arranged in the vestibule of described rotating shaft, and an end of described trip(ping) lever is fixedlyed connected with handle, and the other end is fixedlyed connected with platen.
In the technique scheme, described roof pressure assembly comprises top-pressure part and four balls that are fixed on rotating shaft one end and are positioned at the described handle metal sleeve outside; One side of the approaching described handle metal sleeve of described top-pressure part is provided with equally distributed four roof pressure grooves; The basic configuration of described each roof pressure groove is the oval-shaped groove that the bottom surface tilts; Described ball is arranged in the described roof pressure groove; One side of the approaching described top-pressure part of described handle metal sleeve is provided with the hemispherical ball grooves that matches with described roof pressure groove.
In the technique scheme, the radial thickness of the limit skateboard of described manual handle is less than the radial width of the chute of described rotating shaft, and the axial depth of described limit skateboard is less than the axial depth of described chute; Make described limit skateboard both can slide, can in described chute, turn an angle around the axis of rotating shaft again along described chute along the shaft axis direction.
In the technique scheme, described each clutch friction component comprises main clutch friction plate, and main the clutch friction plate secondary clutch friction plate, the buffering friction plate between described main clutch friction plate and secondary clutch friction plate that offset; Described clutch friction component is not when being subjected to extraneous pressure, thereby described main clutch friction plate and secondary clutch friction plate offset and make and all leave the gap between described main clutch friction plate, buffering friction plate and the secondary clutch friction plate; Described clutch friction component is when being subjected to extraneous pressure, and described main clutch friction plate and secondary clutch friction plate generation deformation make that the gap between described main clutch friction plate, buffering friction plate and the secondary clutch friction plate reduces until becoming tight contact; Described main clutch friction plate is provided with the open-work that matches with described drive link forced section shape with the center of secondary clutch friction plate, the center of described buffering friction plate is provided with circular hole, described main clutch friction plate, buffering friction plate and secondary clutch friction plate all are set on the described drive link forced section, and between described driven wheel and platen.
In the technique scheme, described trip(ping) lever is arranged in the vestibule of described rotating shaft and described drive link a, and can reciprocatingly move along the axis direction of described rotating shaft; Described trip(ping) lever is in the process that the axis direction along described rotating shaft reciprocatingly moves, driving described platen moves towards the direction near described driven wheel, thereby described each clutch friction component is pressed on the described driven wheel, make described main clutch friction plate, the buffering friction plate becomes tight the contact with secondary clutch friction plate, perhaps drives described platen and moves towards the direction away from described driven wheel, no longer described each clutch friction component is pressed on the described driven wheel, thereby make described main clutch friction plate, has the gap between buffering friction plate and the secondary clutch friction plate.
In the technique scheme, described main clutch friction plate comprises body and is arranged at least three group shell fragments at body edges place; The described shell fragment of respectively organizing includes two flexure strips of bending in opposite direction.
In the technique scheme, described secondary clutch friction plate also comprises body and is arranged at least three group shell fragments at body edges place; The described shell fragment of respectively organizing comprises two flexure strips of bending in opposite direction; The flexure strip of described main clutch friction plate is identical with the flexure strip position of described secondary clutch friction plate, direction is opposite.
Technique scheme has the following advantages:
(1) in the utility model, owing on the vacuum circuit-breaker housing, be provided with lightning arrester, makes to the utlity model has anti-lightning strike preferably effect that the scope of application is wider.
(2) the utility model unites two into one vacuum circuit breaker body and duplicate supply switching mechanism, rational in infrastructure, floor space is less, structure is also comparatively simplified, so have the good practicability energy, pass through again to go up the operating mechanism of hand-movement and motor-driven integrative, but have the advantage of remote intelligent control for the configuration of duplicate supply switching mechanism.
(3) in the utility model, described driving mechanism comprises and is used for manually operated manual handle, is used for electrically operated electric driving mechanism, is used to be implemented in the clutch of changing between manual operation and the electric operating.Its designs simplification, operation is convenient.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model product;
Fig. 2 is the structural representation of electric driving mechanism in the 10KV vacuum circuit-breaker lightning protection device shown in Figure 1;
Fig. 3 is a kind of structural representation when switching mechanism is in electric operating in the 10KV vacuum circuit-breaker lightning protection device shown in Figure 1;
Fig. 4 is a kind of structural representation when switching mechanism is in manual operation in the 10KV vacuum circuit-breaker lightning protection device shown in Figure 1;
Fig. 5 is the cutaway view of Fig. 3 along the A-A line;
Fig. 6 is the cutaway view of Fig. 3 along the B-B line;
Fig. 7 is a kind of blast structural representation of part clutch in the 10KV vacuum circuit-breaker lightning protection device shown in Figure 1;
A kind of blast structural representation that Fig. 8 is a part clutch shown in Figure 1 when another angle is observed.
Be labeled as shown in the accompanying drawing: vacuum circuit breaker body 1, housing 11, inlet wire post 12, outlet column 13, duplicate supply switching mechanism 2, main power source binding post 21, stand-by power supply binding post 22, rotating shaft 23, vestibule 231, chute 232, isolation knife 24, insulated tension pole 25, driving mechanism 26, manual handle 3, metal sleeve 31, ball grooves 311, limit skateboard 32, handle 33, electric driving mechanism 4, motor 41, output wheel 411, driven wheel 42, drive link 43, connecting portion 431, forced section 432, groove 433, clutch 5, clutch friction component 51, trip(ping) lever 52, platen 53, roof pressure assembly 54, top-pressure part 541, roof pressure groove 5411, ball 542, spring 55, main clutch friction plate 61, body 611, shell fragment 612, flexure strip 6121, secondary clutch friction plate 62, body 621, shell fragment 622, flexure strip 6221, buffering friction plate 63, lightning protection device 7, lightning arrester 71, main power source lightning arrester 711, stand-by power supply lightning arrester 712, main power voltage instrument transformer 81, backup power source voltage instrument transformer 82, shaft coupling 100, hemispherical groove 200, hemispherical groove 201, hemispherical groove 202, chute 300, copper bar 400.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 8 has shown a kind of embodiment of the present utility model, and wherein Fig. 1 is a kind of structural representation of the present utility model; Fig. 2 is the structural representation of electric driving mechanism in the 10KV vacuum circuit-breaker lightning protection device shown in Figure 1; Fig. 3 is a kind of structural representation when switching mechanism is in electric operating in the 10KV vacuum circuit-breaker lightning protection device shown in Figure 1; Fig. 4 is a kind of structural representation when switching mechanism is in manual operation in the 10KV vacuum circuit-breaker lightning protection device shown in Figure 1; Fig. 5 is the cutaway view of Fig. 3 along the A-A line; Fig. 6 is the cutaway view of Fig. 3 along the B-B line; Fig. 7 is a kind of blast structural representation of part clutch in the 10KV vacuum circuit-breaker lightning protection device shown in Figure 1; A kind of blast structural representation that Fig. 8 is a part clutch shown in Figure 1 when another angle is observed.Wherein Fig. 6 and Fig. 7 have omitted partial view for easy; Omitted among Fig. 6 and be used for top-pressure part is fixed on pin in the rotating shaft; Omitted handle among Fig. 7.
Present embodiment is a kind of 10KV vacuum circuit-breaker lightning protection device, and a kind of 10KV vacuum circuit-breaker lightning protection device is seen Fig. 1, comprises vacuum circuit breaker body 1, duplicate supply switching mechanism 2 and lightning protection device.
Described vacuum circuit breaker body 1 comprise housing 11, three inlet wire posts 12, three vacuum interrupters, three groups of dynamic/static contacts, three outlet column 13 and and the tripping mechanism that matches of described dynamic/static contact;
Described duplicate supply switching mechanism 2 comprises main power source binding post 21, the stand-by power supply binding post 22 that is arranged on housing 11 upper surface right-hand ends, the rotating shaft 23 that is provided with vestibule 231 that are arranged on vacuum circuit-breaker housing 11 upper surface left-hand end, be arranged on three V font isolation knife 24 in the middle of described main power source binding post 21 and the stand-by power supply binding post 22, connect three insulated tension poles 25 of described rotating shaft 23 and described isolation knife 24 and drive the driving mechanism 26 that described rotating shaft 23 is rotated;
The inlet wire post 12 of described vacuum circuit breaker body 1 is arranged on vacuum circuit-breaker housing 11 upper surface middle-ends, also promptly be arranged on the centre of main power source binding post 21 and stand-by power supply binding post 22, the top of described each inlet wire post 12 and a corresponding isolation knife 24 are rotationally connected; Driving mechanism 26 in the described duplicate supply switching mechanism 2 is hand-movement and motor-driven integrative operating mechanisms, that is to say that the driving mechanism 26 in the described duplicate supply switching mechanism 2 comprises manual-operating mechanism and motor-operating mechanism and the moving operation of torch switching mechanism.
Specifically: described driving mechanism 26 comprises and is used for manually operated manual handle 3, is used for electrically operated electric driving mechanism 4, is used to be implemented in the clutch of changing between manual operation and the electric operating 5.
See Fig. 1, described housing 11 upper surface left-hand end and between described main power source binding post 21 and described vacuum circuit breaker main inlet wire post 12 are provided with three main power source lightning arresters 711 that vertically are provided with; The binding post of described each main power source lightning arrester 711 is electrically connected with a corresponding main power source binding post 21; On the shell wall of described housing 11 right-hand ends, be provided with the stand-by power supply lightning arrester 712 that three along continuous straight runs are provided with; The binding post of described each stand-by power supply lightning arrester 712 is electrically connected with a corresponding stand-by power supply binding post 22; The outlet terminal of the outlet terminal of described each main power source lightning arrester 711 and each stand-by power supply lightning arrester 712 is electrically connected by copper bar 400, and described copper bar 400 is electrically connected with earth lead.
Described copper bar 400 is fixed on the housing 11, and is electrically connected with housing 11.
The left-hand end of described housing 11 and in the outside of described main power source binding post 21 also is provided with a main power voltage instrument transformer 81; Two binding posts of this main power voltage instrument transformer 81 are electrically connected with corresponding two main power source binding posts 21; The right-hand end of described housing 11 and between described stand-by power supply binding post 22 and described stand-by power supply lightning arrester 712, also be provided with a backup power source voltage instrument transformer 82, two binding posts of this backup power source voltage instrument transformer 82 are electrically connected with corresponding two stand-by power supply binding posts 22.
Two binding posts of described main power voltage instrument transformer 81 also are electrically connected with the input terminal of corresponding two main power source lightning arresters 711 respectively; Two binding posts of described backup power source voltage instrument transformer 82 also are electrically connected with the input terminal of corresponding two stand-by power supply lightning arresters 712 respectively; Described main power voltage instrument transformer 81 and described backup power source voltage instrument transformer 82 are all along the setting that is inclined upwardly from the horizontal by 45 directions of spending angles.
See Fig. 3 and Fig. 4, described manual handle 3 comprises the metal sleeve 31 that is used to be set on described rotating shaft 23 1 sides, be fixed in sleeve pipe 31 vestibules and radially run through the limit skateboard 32 of vestibule and be fixed on the sleeve pipe 31 radially handle 33; An end that matches with described manual handle 3 of described rotating shaft 23 is provided with chute 232; The limit skateboard 32 of described manual handle 3 is arranged in the described chute 232; Described electric driving mechanism 4 comprise motor 41 with output wheel 411, by described output wheel 411 drive and be provided with vertically vestibule driven wheel 42, be arranged on the drive link 43 in described driven wheel 42 vestibules; Described drive link 43 is fixedlyed connected with rotating shaft 23, and described driven wheel 42 is a loose fit with drive link 43; One end of described drive link 43 is provided with by shaft coupling 100 fixedlys connected with rotating shaft 23; This end of described drive link 43 is a connecting portion 431, and the other end is provided with forced section 432, and the outer surface of described forced section 432 is provided with several grooves that is provided with vertically 433; Described driven wheel 42 drives described drive link 43 by clutch 5 and rotates to carry out electric operating.
Described clutch 5 comprise several be set in clutch friction component 51 on described drive link 43 forced sections 432, trip(ping) lever of fixedlying connected 52, platen that is used to push the clutch friction assembly 53 with handle, one be used for the described handle of roof pressure and be set in towards the roof pressure assembly that moves near described drive link 43 directions 54, one and be used to described handle that the spring 55 of reseting elasticity is provided in the rotating shaft 23; Described trip(ping) lever 52 is arranged in the vestibule 231 of described rotating shaft 23, and an end of described trip(ping) lever 52 is fixedlyed connected with handle, and the other end is fixedlyed connected with platen 53;
See Fig. 3 to Fig. 6, described roof pressure assembly 54 comprises top-pressure part 541 and four balls 542 that are fixed on rotating shaft 23 1 ends and are positioned at described handle metal sleeve 31 outsides; One side of the approaching described handle metal sleeve 31 of described top-pressure part 541 is provided with equally distributed four roof pressure grooves 5411; The basic configuration of described each roof pressure groove 5411 is oval-shaped grooves that the bottom surface tilts; Described ball 542 is arranged in the described roof pressure groove 5411; One side of the approaching described top-pressure part 541 of described handle metal sleeve 31 is provided with the hemispherical ball grooves 311 that matches with described roof pressure groove 5411; Specifically, described each roof pressure groove 5411 is made up of three hemispherical groove 200 and two chutes 300, in described three hemispherical groove, middle hemispherical groove 201 degree of depth are darker, the degree of depth of two hemispherical groove 202 of the left and right sides is more shallow, and a middle hemispherical groove 201 is communicated with by a more shallow hemispherical groove 202 of a chute 300 and one side; Described chute 300 has certain angle of inclination, is convenient in ball 542 is rolled to the one side from the hemispherical groove 201 of centre the hemispherical groove 202.
The radial thickness of the limit skateboard 32 of described manual handle 3 is less than the radial width of the chute 232 of described rotating shaft 23, and the axial depth of described limit skateboard 32 is less than the axial depth of described chute 232; Make described limit skateboard 32 both can slide, can in described chute 232, turn an angle around the axis of rotating shaft 23 again along described chute 232 along rotating shaft 23 axis directions;
See Fig. 7 and Fig. 8, described each clutch friction component 51 is set on the forced section 432 of described drive link 43.Described each clutch friction component 51 comprises main clutch friction plate 61, and main the clutch friction plate 61 secondary clutch friction plate 62, the buffering friction plate 63 between described main clutch friction plate 61 and secondary clutch friction plate 62 that offset; Described clutch friction component 51 is not when being subjected to extraneous pressure, thereby described main clutch friction plate 61 and secondary clutch friction plate 62 offset and make and all leave the gap between described main clutch friction plate 61, buffering friction plate 63 and the secondary clutch friction plate 62; Described clutch friction component 51 is when being subjected to extraneous pressure, deformation takes place with secondary clutch friction plate 62 in described main clutch friction plate 61, makes that the gap between described main clutch friction plate 61, buffering friction plate 63 and the secondary clutch friction plate 62 reduces until becoming tight contact; Described main clutch friction plate 61 is provided with the open-work that matches with described drive link 43 forced sections 432 shapes with the center of secondary clutch friction plate 62, the center of described buffering friction plate 63 is provided with circular hole, described main clutch friction plate 61, buffering friction plate 63 and secondary clutch friction plate 62 all are set on described drive link 43 forced sections 432, and between described driven wheel 42 and platen 53;
Described trip(ping) lever 52 is arranged in the vestibule of described rotating shaft 23 and described drive link 43, and can reciprocatingly move along the axis direction of described rotating shaft 23; Described trip(ping) lever 52 is in the process that the axis direction along described rotating shaft 23 reciprocatingly moves, driving described platen 53 moves towards the direction near described driven wheel 42, thereby described each clutch friction component 51 is pressed on the described driven wheel 42, make described main clutch friction plate 61, buffering friction plate 63 becomes tight the contact with secondary clutch friction plate 62, perhaps drives described platen 53 and moves towards the direction away from described driven wheel 42, no longer described each clutch friction component 51 is pressed on the described driven wheel 42, thereby make described main clutch friction plate 61, has the gap between buffering friction plate 63 and the secondary clutch friction plate 62.
Described main clutch friction plate 61 comprises body 611 and is arranged at least three group shell fragments 612 of body 611 edges; The described shell fragment 612 of respectively organizing includes two flexure strips 6121 of bending in opposite direction;
Described secondary clutch friction plate 62 also comprises body 621 and is arranged on three groups of shell fragments 622 of body 621 edges; The described shell fragment 622 of respectively organizing comprises two flexure strips 6221 of bending in opposite direction; The flexure strip 6121 of described main clutch friction plate 61 is identical with flexure strip 6221 positions of described secondary clutch friction plate 62, direction is opposite.
The present embodiment product is when meeting with thunderbolt, and no matter lightning strike spot all can be introduced ground wire with thunder and lightning wherein, effectively the protection switch main body.
The course of work of present embodiment is:
1. the manual duplicate supply conversion operations process of present embodiment: begin by handle 33 rotation manual handles 3, and drive metal sleeve 31 and limit skateboard 32 rotations, because the radial thickness of described limit skateboard 32 is less than the radial width of the chute 232 of described rotating shaft 23, the axial depth of described limit skateboard 32 is less than the axial depth of described chute 232; Make described limit skateboard 32 both can slide, can in described chute 232, turn an angle around the axis of rotating shaft 23 again along described chute 232 along rotating shaft 23 axis directions; So, described openhanded handle 33 is in incipient rotation process, and promptly in certain little angular range, described limit skateboard 32 does not also touch the trough rim wall of described rotating shaft chute 232 yet, also be in this process, handle 3 has turned an angle but rotating shaft 23 is not rotated as yet; The effect of this process is: manual handle drives ball 542 by metal sleeve 31 and rolls when just beginning to rotate.When ball 542 rolls in the different hemispherical groove of two degree of depth, distance between the metal sleeve 31 of described top-pressure part 541 and described manual handle also dissimilates thereupon, because described rotating shaft 23 is to axially move, can only sway, add described top-pressure part 541 in addition and be fixedly installed on an end of described rotating shaft 23, so when manual handle begins to rotate a low-angle just, and when the not limited as yet slide plate 32 of rotating shaft drives, described ball can be rolled in the more shallow hemispherical groove of one side from the darker hemispherical groove in centre, thereby the trip(ping) lever 52 that promotes to fixedly connected with metal sleeve 31 moves a certain distance towards the direction away from described top-pressure part 541, after this, ball 542 is subjected to the position-limiting action of roof pressure groove 5411, only rolls in more shallow hemispherical groove; Thereby make clutch 5 be in " from " state, at this moment, driven wheel 42 idle running can not drive described drive link 43 by clutch friction assembly 51 again and rotate, and after this, can only carry out manual control, can not carry out electric operating.Be rotated further handle again,, rotate so described limit skateboard 32 can directly drive described rotating shaft 23, thereby realize manual duplicate supply conversion operations because described limit skateboard 32 has been against on the limit wall of described rotating shaft 23 chutes 232.After this, if remove the external force that is applied on the manual handle, then under the reset response of spring 55, described ball 542 homings are rolled in the darker hemispherical groove, thereby make present embodiment be under the electric operating state of acquiescence.
2. electronic duplicate supply conversion operations: by default, clutch friction component 51 is in " closing " state, that is to say that present embodiment can directly carry out electronic duplicate supply conversion operations.After motor 41 energisings in the driving mechanism 26, drive its output wheel 411 by a gear and rotate; Output wheel 411 and then 42 rotations of drive driven wheel; Because this moment, platen 53 compressed clutch friction component 51,, driven wheel 42 rotates so can directly driving drive link 43 by clutch friction component 51; Because the connecting portion of described drive link 43 is fixedlyed connected with described rotating shaft by a shaft coupling 100, rotate so described drive link 43 can directly drive rotating shaft 23, thereby realize the duplicate supply conversion operations.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (10)
1. a 10KV vacuum circuit-breaker lightning protection device comprises vacuum circuit breaker body (1) and duplicate supply switching mechanism (2);
Described vacuum circuit breaker body (1) comprises housing (11), three inlet wire posts (12), three vacuum interrupters, three groups of tripping mechanisms that dynamic/static contact, three outlet column (13) and described dynamic/static contact match;
It is characterized in that: described duplicate supply switching mechanism (2) comprises the main power source binding post (21) that is arranged on vacuum circuit-breaker housing (11) upper surface left-hand end, be arranged on the stand-by power supply binding post (22) of housing (11) upper surface right-hand end, be provided with the rotating shaft (23) of vestibule (231), be arranged on middle three isolation knife (24) of described main power source binding post (21) and stand-by power supply binding post (22), three insulated tension poles (25) that connect described rotating shaft (23) and described isolation knife (24), with the driving mechanism (26) that drives described rotating shaft (23) rotation;
The inlet wire post (12) of described vacuum circuit breaker body (1) is arranged on vacuum circuit-breaker housing (11) upper surface middle-end, also promptly be arranged on the centre of main power source binding post (21) and stand-by power supply binding post (22), the top of described each inlet wire post (12) and a corresponding isolation knife (24) are rotationally connected; Also comprise lightning protection device (7); Described lightning protection device (7) comprises the lightning arrester (71) that is fixedly installed on the housing (11).
2. 10KV vacuum circuit-breaker lightning protection device according to claim 1, it is characterized in that: described housing (11) upper surface left-hand end and between described main power source binding post (21) and described vacuum circuit breaker main inlet wire post (12) is provided with three main power source lightning arresters (711) that vertically are provided with;
The binding post of described each main power source lightning arrester (711) is electrically connected with a corresponding main power source binding post (21);
On the shell wall of described housing (11) right-hand end, be provided with the stand-by power supply lightning arrester (712) that three along continuous straight runs are provided with; The binding post of described each stand-by power supply lightning arrester (712) is electrically connected with a corresponding stand-by power supply binding post (22);
3. 10KV vacuum circuit-breaker lightning protection device according to claim 2, it is characterized in that: the outlet terminal of the outlet terminal of described each main power source lightning arrester (711) and each stand-by power supply lightning arrester (712) is electrically connected by copper bar (400), and described copper bar (400) is electrically connected with earth lead; Described copper bar (400) is fixed on the housing (11), and is electrically connected with housing (11).
4. 10KV vacuum circuit-breaker lightning protection device according to claim 3 is characterized in that: the left-hand end of described housing (11) and in the outside of described main power source binding post (21) also is provided with a main power voltage instrument transformer (81); Two binding posts of this main power voltage instrument transformer (81) are electrically connected with corresponding two main power source binding posts (21);
The right-hand end of described housing (11) and between described stand-by power supply binding post (22) and described stand-by power supply lightning arrester (712), also be provided with a backup power source voltage instrument transformer (82), two binding posts of this backup power source voltage instrument transformer (82) are electrically connected with corresponding two stand-by power supply binding posts (22).
5. 10KV vacuum circuit-breaker lightning protection device according to claim 4 is characterized in that: two binding posts of described main power voltage instrument transformer (81) also are electrically connected with the input terminal of corresponding two main power source lightning arresters (711) respectively; Two binding posts of described backup power source voltage instrument transformer (82) also are electrically connected with the input terminal of corresponding two stand-by power supply lightning arresters (712) respectively; Described main power voltage instrument transformer (81) and described backup power source voltage instrument transformer (82) are all along the setting that is inclined upwardly from the horizontal by 45 directions of spending angles.
6. 10KV vacuum circuit-breaker lightning protection device according to claim 1 is characterized in that: the driving mechanism (26) in the described duplicate supply switching mechanism (2) is the hand-movement and motor-driven integrative operating mechanism.
7. 10KV vacuum circuit-breaker lightning protection device according to claim 6 is characterized in that: described driving mechanism (26) comprises and is used for manually operated manual handle (3), is used for electrically operated electric driving mechanism (4), is used to be implemented in the clutch of changing between manual operation and the electric operating (5).
8. 10KV vacuum circuit-breaker lightning protection device according to claim 7 is characterized in that:
Described manual handle (3) comprises the metal sleeve (31) that is used to be set on described rotating shaft (23) one sides, be fixed in sleeve pipe (31) vestibule and radially run through the limit skateboard (32) of vestibule and be fixed on the sleeve pipe (31) radially handle (33);
An end that matches with described manual handle (3) of described rotating shaft (23) is provided with chute (232); The limit skateboard (32) of described manual handle (3) is arranged in the described chute (232);
Described electric driving mechanism (4) comprises the motor (41) of (411) that has output wheel, is driven and be provided with vertically the driven wheel (42) of vestibule by described output wheel (411), is arranged on the drive link (43) in described driven wheel (42) vestibule; Described drive link (43) is fixedlyed connected with rotating shaft (23), and described driven wheel (42) is a loose fit with drive link (43); One end of described drive link (43) is provided with the connecting portion (431), the other end that are used for fixedlying connected with rotating shaft (23) usefulness and is provided with forced section (432), and the outer surface of described forced section (432) is provided with several grooves that is provided with vertically (433);
Described driven wheel (42) drives described drive link (43) by clutch (5) and rotates to carry out electric operating.
9. 10KV vacuum circuit-breaker lightning protection device according to claim 8 is characterized in that:
Described clutch (5) comprises that several are set in platen (53), one that clutch friction component (51) on described drive link (43) forced section (432), a trip(ping) lever of fixedlying connected with handle (52), one be used to push the clutch friction assembly and are used for the described handle of roof pressure and are set in towards the roof pressure assembly (54) that moves near described drive link (43) direction, one and are used to described handle that the spring (55) of reseting elasticity is provided in the rotating shaft (23); Described trip(ping) lever (52) is arranged in the vestibule (231) of described rotating shaft (23), and an end of described trip(ping) lever (52) is fixedlyed connected with handle, and the other end is fixedlyed connected with platen (53);
Described roof pressure assembly (54) comprises top-pressure part (541) and four balls (542) that are fixed on rotating shaft (23) one ends and are positioned at described handle metal sleeve (31) outside; One side of the approaching described handle metal sleeve (31) of described top-pressure part (541) is provided with equally distributed four roof pressure grooves (5411); The basic configuration of described each roof pressure groove (5411) is the oval-shaped groove that the bottom surface tilts; Described ball (542) is arranged in the described roof pressure groove (5411); One side of the approaching described top-pressure part (541) of described handle metal sleeve (31) is provided with the hemispherical ball grooves (311) that matches with described roof pressure groove (5411);
The radial thickness of the limit skateboard (32) of described manual handle (3) is less than the radial width of the chute (232) of described rotating shaft (23), and the axial depth of described limit skateboard (32) is less than the axial depth of described chute (232); Make described limit skateboard (32) both can slide, can in described chute (232), turn an angle around the axis of rotating shaft (23) again along described chute (232) along rotating shaft (23) axis direction;
Described each clutch friction component (51) comprises main clutch friction plate (61), and the secondary clutch friction plate (62) that offsets of main clutch friction plate (61), is positioned at the buffering friction plate (63) between described main clutch friction plate (61) and the secondary clutch friction plate (62); Described clutch friction component (51) is not when being subjected to extraneous pressure, and described main clutch friction plate (61) and secondary clutch friction plate (62) thereby offset makes and all leave the gap between described main clutch friction plate (61), buffering friction plate (63) and the secondary clutch friction plate (62); Described clutch friction component (51) is when being subjected to extraneous pressure, deformation takes place with secondary clutch friction plate (62) in described main clutch friction plate (61), makes that the gap between described main clutch friction plate (61), buffering friction plate (63) and the secondary clutch friction plate (62) reduces until becoming tight contact; Described main clutch friction plate (61) is provided with the open-work that matches with described drive link (43) forced section (432) shape with the center of secondary clutch friction plate (62), the center of described buffering friction plate (63) is provided with circular hole, described main clutch friction plate (61), buffering friction plate (63) and secondary clutch friction plate (62) all are set on described drive link (43) forced section (432), and are positioned between described driven wheel (42) and the platen (53);
Described trip(ping) lever (52) is arranged in the vestibule of described rotating shaft (23) and described drive link (43), and can reciprocatingly move along the axis direction of described rotating shaft (23); Described trip(ping) lever (52) is in the process that the axis direction along described rotating shaft (23) reciprocatingly moves, driving described platen (53) moves towards the direction near described driven wheel (42), thereby described each clutch friction component (51) is pressed on the described driven wheel (42), make described main clutch friction plate (61), buffering friction plate (63) becomes tight the contact with secondary clutch friction plate (62), perhaps drives described platen (53) and moves towards the direction away from described driven wheel (42), no longer described each clutch friction component (51) is pressed on the described driven wheel (42), thereby make described main clutch friction plate (61), has the gap between buffering friction plate (63) and the secondary clutch friction plate (62).
10. 10KV vacuum circuit-breaker lightning protection device according to claim 9 is characterized in that: described main clutch friction plate (61) comprises body (611) and is arranged at least three group shell fragments (612) of body (611) edge; The described shell fragment (612) of respectively organizing includes two flexure strips of bending (6121) in opposite direction;
Described secondary clutch friction plate (62) also comprises body (621) and is arranged at least three group shell fragments (622) of body (621) edge; The described shell fragment (622) of respectively organizing comprises two flexure strips of bending (6221) in opposite direction; The flexure strip (6121) of described main clutch friction plate (61) is identical with flexure strip (6221) position of described secondary clutch friction plate (62), direction is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920168118XU CN201490081U (en) | 2009-01-07 | 2009-08-10 | Lightning protection device of 10KV vacuum circuit breaker |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920000550.8 | 2009-01-07 | ||
| CN200920168118XU CN201490081U (en) | 2009-01-07 | 2009-08-10 | Lightning protection device of 10KV vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201490081U true CN201490081U (en) | 2010-05-26 |
Family
ID=42428949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920168118XU Expired - Lifetime CN201490081U (en) | 2009-01-07 | 2009-08-10 | Lightning protection device of 10KV vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201490081U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635224B (en) * | 2009-01-07 | 2012-05-09 | 浙江中意电气有限公司 | Manual and electrical integral operating mechanism of 10KV vacuum circuit breaker |
| CN101635223B (en) * | 2009-01-07 | 2012-07-18 | 浙江中意电气有限公司 | 10KV vacuum circuit breaker |
| CN104319128A (en) * | 2014-11-17 | 2015-01-28 | 苏州戴尔曼电器有限公司 | Lightning protection switch |
| CN105719899A (en) * | 2016-04-25 | 2016-06-29 | 宏秀电气有限公司 | Intelligent high-voltage dual-power vacuum circuit breaker |
| CN106057561A (en) * | 2016-04-25 | 2016-10-26 | 信尔德科技有限公司 | Intelligent high-voltage vacuum circuit breaker |
-
2009
- 2009-08-10 CN CN200920168118XU patent/CN201490081U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635224B (en) * | 2009-01-07 | 2012-05-09 | 浙江中意电气有限公司 | Manual and electrical integral operating mechanism of 10KV vacuum circuit breaker |
| CN101635223B (en) * | 2009-01-07 | 2012-07-18 | 浙江中意电气有限公司 | 10KV vacuum circuit breaker |
| CN104319128A (en) * | 2014-11-17 | 2015-01-28 | 苏州戴尔曼电器有限公司 | Lightning protection switch |
| CN105719899A (en) * | 2016-04-25 | 2016-06-29 | 宏秀电气有限公司 | Intelligent high-voltage dual-power vacuum circuit breaker |
| CN106057561A (en) * | 2016-04-25 | 2016-10-26 | 信尔德科技有限公司 | Intelligent high-voltage vacuum circuit breaker |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100526 Effective date of abandoning: 20090810 |