CN101635223B - 10KV vacuum circuit breaker - Google Patents
10KV vacuum circuit breaker Download PDFInfo
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- CN101635223B CN101635223B CN2009101637800A CN200910163780A CN101635223B CN 101635223 B CN101635223 B CN 101635223B CN 2009101637800 A CN2009101637800 A CN 2009101637800A CN 200910163780 A CN200910163780 A CN 200910163780A CN 101635223 B CN101635223 B CN 101635223B
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Abstract
The invention discloses a lightening protection device of a 10KV vacuum circuit breaker, which comprises a vacuum circuit breaker body, a dual-power supply switching mechanism and a lightening protection device. The dual-power supply switching mechanism comprises a main power supply terminal, a spare power supply terminal, a rotating shaft, three isolation switches, three insulation pull rods anda driving mechanism, wherein the main power supply terminal is arranged on the left side of the upper surface of a case of the vacuum circuit breaker; the spare power supply terminal is arranged on the right side of the upper surface of the case; the rotating shaft is provided with hole cavities; the three isolation switches are arranged between the main power supply terminal and the spare power supply terminal; the rotating shaft and the isolation switches are connected by the three insulation pull rods; and the driving mechanism drives the rotating shaft to rotate. Wire inlet terminals of the vacuum circuit breaker body are arranged in the middle of the upper surface of the case of the vacuum circuit breaker, and the top end of each wire inlet terminal is rotatably connected with one corresponding isolation cutter. The lightening protection device comprises an arrester which is fixedly arranged on the case. The invention has the advantage that the structure is simple, no matter where the thunder strikes on the switch, the lighting protection can be effectively performed, and the components in the switch are protected.
Description
Technical field
The invention belongs to high-pressure vacuum breaker structure-design technique field, be specifically related to a kind of 10KV vacuum circuit-breaker.
Background technology
In electric power networks, there have many users that power supply reliability is required to be very high, 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 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, and in order to achieve this end, need between main power source and stand-by power supply, carry out manual switchover or automatic switchover through 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 designed voluntarily, 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; Connect one road power supply to the end of incoming cables of every circuit breaker; Leading-out terminal with two circuit breakers connects together then, and realizes main power source and stand-by power supply are switched through electric interlocking installation.The shortcoming of this duplicate supply switching mechanism is that functional reliability is relatively poor, and possibly cause serious accident; For example be when regular maintenance is carried out in the power failure of main power source power supply circuits; May the coil burnout in the circuit breaker of main power source connection be fallen; But the circuit in this circuit breaker still keeps channel status, and 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.
Summary of the invention
The purpose of this invention is to provide a kind of 10KV vacuum circuit-breaker with anti-preferably thunderbolt effect.
The technical scheme that realizes the object of the invention is: a kind of 10KV vacuum circuit-breaker comprises vacuum circuit breaker body and duplicate supply switching mechanism; Said 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 said dynamic/static contact; Said 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 said main power source binding post and the stand-by power supply binding post, connect three insulated tension poles of said rotating shaft and said isolation knife and drive the driving mechanism of said rotating shaft rotation; The inlet wire post of said 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 said each inlet wire post and a corresponding isolation knife are rotationally connected; Also comprise lightning protection device; Said lightning protection device comprises the lightning arrester that is fixedly installed on the housing.
In the technique scheme, said housing upper surface left-hand end and between said main power source binding post and said 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 said each main power source lightning arrester is electrically connected with a corresponding main power source binding post; On the shell wall of said 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 said 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 said each main power source lightning arrester and each stand-by power supply lightning arrester is electrically connected through copper bar, and said copper bar is electrically connected with earth lead; Said copper bar is fixed on the housing, and is electrically connected with housing.
In the technique scheme, the left-hand end of said housing and in the outside of said 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 said housing and between said stand-by power supply binding post and said 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 said 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 said backup power source voltage instrument transformer also are electrically connected with the input terminal of corresponding two stand-by power supply lightning arresters respectively; Said main power voltage instrument transformer and said backup power source voltage instrument transformer are all along the direction setting that is inclined upwardly from the horizontal by 45 degree angles.
In the technique scheme, the driving mechanism in the said duplicate supply switching mechanism is the hand-movement and motor-driven integrative operating mechanism.
In the technique scheme, said 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, said manual handle comprises the metal sleeve that is used to be set on said 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 handle radially.
In the technique scheme, an end that matches with said manual handle of said rotating shaft is provided with chute; The limit skateboard of said manual handle is arranged in the said chute.
In the technique scheme, said electric driving mechanism comprise motor with output wheel, by said output wheel drive and be provided with vertically vestibule driven wheel, be arranged on the drive link in the said driven wheel vestibule; Said drive link is fixedly connected with rotating shaft, and said driven wheel and drive link are loose fit; One end of said drive link is provided with the connecting portion, the other end that are used for being fixedly connected with rotating shaft usefulness and is provided with forced section, and the outer surface of said forced section is provided with several grooves that is provided with vertically.
In the technique scheme, said driven wheel drives said drive link through clutch and rotates to carry out electric operating.
In the technique scheme, said clutch comprises that several are set in platen, one that clutch friction component on the said drive link forced section, trip(ping) lever that is fixedly connected with handle, one be used to push the clutch friction assembly and are used for the said handle of roof pressure and are set in towards the roof pressure assembly that moves near said drive link direction, one and are used to the spring that said handle provides reseting elasticity in the rotating shaft; Said trip(ping) lever is arranged in the vestibule of said rotating shaft, and an end of said trip(ping) lever is fixedly connected with handle, and the other end is fixedly connected with platen.
In the technique scheme, said roof pressure assembly comprises top-pressure part and four balls that are fixed on rotating shaft one end and are positioned at the said handle metal sleeve outside; One side of the approaching said handle metal sleeve of said top-pressure part is provided with equally distributed four roof pressure grooves; The basic configuration of said each roof pressure groove is the oval-shaped groove that the bottom surface tilts; Said ball is arranged in the said roof pressure groove; One side of the approaching said top-pressure part of said handle metal sleeve is provided with the hemispherical ball grooves that matches with said roof pressure groove.
In the technique scheme, the radial thickness of the limit skateboard of said manual handle is less than the radial width of the chute of said rotating shaft, and the axial depth of said limit skateboard is less than the axial depth of said chute; Make said limit skateboard both can slide, can in said chute, turn an angle around the axis of rotating shaft again along said chute along the shaft axis direction.
In the technique scheme, said each clutch friction component comprises main clutch friction plate, and main the clutch friction plate secondary clutch friction plate, the buffering friction plate between said main clutch friction plate and secondary clutch friction plate that offset; Said clutch friction component is not when receiving extraneous pressure, thereby said main clutch friction plate and secondary clutch friction plate offset and make and all leave the gap between said main clutch friction plate, buffering friction plate and the secondary clutch friction plate; Said clutch friction component is when receiving extraneous pressure, and said main clutch friction plate and secondary clutch friction plate generation deformation make that the gap between said main clutch friction plate, buffering friction plate and the secondary clutch friction plate reduces until becoming tight contact; Said main clutch friction plate is provided with the open-work that matches with said drive link forced section shape with the center of secondary clutch friction plate; The center of said buffering friction plate is provided with circular hole; Said main clutch friction plate, buffering friction plate and secondary clutch friction plate all are set on the said drive link forced section, and between said driven wheel and platen.
In the technique scheme, said trip(ping) lever is arranged in the vestibule of said rotating shaft and said drive link a, and can reciprocatingly move along the axis direction of said rotating shaft; Said trip(ping) lever is in the process that the axis direction along said rotating shaft reciprocatingly moves; Said each clutch friction component is pressed on the said driven wheel, makes said main clutch friction plate, buffering friction plate become tight the contact with secondary clutch friction plate towards moving thereby drive said platen near the direction of said driven wheel, thus perhaps drive said platen towards the direction away from said driven wheel move, no longer with said each clutch friction component be pressed on make on the said driven wheel said main clutch friction plate, cushion between friction plate and the secondary clutch friction plate and have the gap.
In the technique scheme, said main clutch friction plate comprises body and at least three group shell fragments that are arranged on the body edges place; The said shell fragment of respectively organizing includes two flexure strips of bending in opposite direction.
In the technique scheme, said secondary clutch friction plate also comprises body and at least three group shell fragments that are arranged on the body edges place; The said shell fragment of respectively organizing comprises two flexure strips of bending in opposite direction; The flexure strip of said main clutch friction plate is identical, in the opposite direction with the flexure strip position of said secondary clutch friction plate.
Technique scheme has the following advantages:
(1) among the present invention, owing on the vacuum circuit-breaker housing, be provided with lightning arrester, make the present invention have anti-preferably thunderbolt effect, the scope of application is wider.
(2) the present invention unites two into one vacuum circuit breaker body and duplicate supply switching mechanism; Rational in infrastructure; Floor space is less, and structure is also comparatively simplified, can so have good practicability; 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) among the present invention, said 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 product of the present invention;
Fig. 2 is the structural representation of electric driving mechanism in the 10KV vacuum circuit-breaker 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 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 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 shown in Figure 1;
Fig. 8 is a kind of blast structural representation of part clutch shown in Figure 1 during from another viewed.
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 invention, and wherein Fig. 1 is a kind of structural representation of the present invention; Fig. 2 is the structural representation of electric driving mechanism in the 10KV vacuum circuit-breaker 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 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 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 shown in Figure 1; Fig. 8 is a kind of blast structural representation of part clutch shown in Figure 1 during from another viewed.Wherein Fig. 6 and Fig. 7 have omitted partial view for easy; Omitted among Fig. 6 and be used for being fixed on the pin in the rotating shaft to top-pressure part; Omitted handle among Fig. 7.
Present embodiment is a kind of 10KV vacuum circuit-breaker, and a kind of 10KV vacuum circuit-breaker is seen Fig. 1, comprises vacuum circuit breaker body 1, duplicate supply switching mechanism 2 and lightning protection device.
Said 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 said dynamic/static contact;
Said 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 said main power source binding post 21 and the stand-by power supply binding post 22, connect three insulated tension poles 25 of said rotating shaft 23 and said isolation knife 24 and drive the driving mechanism 26 that said rotating shaft 23 is rotated;
The inlet wire post 12 of said 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 said each inlet wire post 12 and a corresponding isolation knife 24 are rotationally connected; Driving mechanism 26 in the said 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 said duplicate supply switching mechanism 2 comprises manual-operating mechanism and motor-operating mechanism and the moving operation of torch switching mechanism.
Specifically: said 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, said housing 11 upper surface left-hand end and between said main power source binding post 21 and said 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 said each main power source lightning arrester 711 is electrically connected with a corresponding main power source binding post 21; On the shell wall of said 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 said 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 said each main power source lightning arrester 711 and each stand-by power supply lightning arrester 712 is electrically connected through copper bar 400, and said copper bar 400 is electrically connected with earth lead.
Said copper bar 400 is fixed on the housing 11, and is electrically connected with housing 11.
The left-hand end of said housing 11 and in the outside of said 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 said housing 11 and between said stand-by power supply binding post 22 and said 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 said 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 said 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; Said main power voltage instrument transformer 81 and said backup power source voltage instrument transformer 82 all along from the horizontal by 45 spend angles the direction setting that is inclined upwardly.
See Fig. 3 and Fig. 4, said manual handle 3 comprises the metal sleeve 31 that is used to be set on said 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 handle 33 radially; An end that matches with said manual handle 3 of said rotating shaft 23 is provided with chute 232; The limit skateboard 32 of said manual handle 3 is arranged in the said chute 232; Said electric driving mechanism 4 comprise motor 41 with output wheel 411, by said output wheel 411 drive and be provided with vertically vestibule driven wheel 42, be arranged on the drive link 43 in said driven wheel 42 vestibules; Said drive link 43 is fixedly connected with rotating shaft 23, and said driven wheel 42 is a loose fit with drive link 43; One end of said drive link 43 is provided with through shaft coupling 100 and is fixedly connected with rotating shaft 23; This end of said drive link 43 is a connecting portion 431, and the other end is provided with forced section 432, and the outer surface of said forced section 432 is provided with several grooves that is provided with vertically 433; Said driven wheel 42 drives said drive link 43 through clutch 5 and rotates to carry out electric operating.
Said clutch 5 comprise several be set in clutch friction component 51 on said drive link 43 forced sections 432, trip(ping) lever that is fixedly connected with handle 52, platen that is used to push the clutch friction assembly 53, one be used for the said handle of roof pressure and be set in towards the roof pressure assembly that moves near said drive link 43 directions 54, one and be used to the spring 55 that said handle provides reseting elasticity in the rotating shaft 23; Said trip(ping) lever 52 is arranged in the vestibule 231 of said rotating shaft 23, and an end of said trip(ping) lever 52 is fixedly connected with handle, and the other end is fixedly connected with platen 53;
See Fig. 3 to Fig. 6, said 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 said handle metal sleeve 31 outsides; One side of the approaching said handle metal sleeve 31 of said top-pressure part 541 is provided with equally distributed four roof pressure grooves 5411; The basic configuration of said each roof pressure groove 5411 is oval-shaped grooves that the bottom surface tilts; Said ball 542 is arranged in the said roof pressure groove 5411; One side of the approaching said top-pressure part 541 of said handle metal sleeve 31 is provided with the hemispherical ball grooves 311 that matches with said roof pressure groove 5411; Specifically; Said each roof pressure groove 5411 is made up of three hemispherical groove 200 and two chutes 300; In said three hemispherical groove; Middle hemispherical groove 201 degree of depth are darker, and 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 through a more shallow hemispherical groove 202 of a chute 300 and one of which side; Said chute 300 has certain angle of inclination, is convenient in ball 542 is rolled to the one of which side from the hemispherical groove 201 of centre the hemispherical groove 202.
The radial thickness of the limit skateboard 32 of said manual handle 3 is less than the radial width of the chute 232 of said rotating shaft 23, and the axial depth of said limit skateboard 32 is less than the axial depth of said chute 232; Make said limit skateboard 32 both can slide, can in said chute 232, turn an angle around the axis of rotating shaft 23 again along said chute 232 along rotating shaft 23 axis directions;
See Fig. 7 and Fig. 8, said each clutch friction component 51 is set on the forced section 432 of said drive link 43.Said 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 said main clutch friction plate 61 and secondary clutch friction plate 62 that offset; Said clutch friction component 51 is not when receiving extraneous pressure, thereby said main clutch friction plate 61 and secondary clutch friction plate 62 offset and make and all leave the gap between said main clutch friction plate 61, buffering friction plate 63 and the secondary clutch friction plate 62; Said clutch friction component 51 is when receiving extraneous pressure; Deformation take place with secondary clutch friction plate 62 in said main clutch friction plate 61, make that the gap between said main clutch friction plate 61, buffering friction plate 63 and the secondary clutch friction plate 62 reduces until becoming tight contact; Said main clutch friction plate 61 is provided with the open-work that matches with said drive link 43 forced sections 432 shapes with the center of secondary clutch friction plate 62; The center of said buffering friction plate 63 is provided with circular hole; Said main clutch friction plate 61, buffering friction plate 63 and secondary clutch friction plate 62 all are set on said drive link 43 forced sections 432, and between said driven wheel 42 and platen 53;
Said trip(ping) lever 52 is arranged in the vestibule of said rotating shaft 23 and said drive link 43, and can reciprocatingly move along the axis direction of said rotating shaft 23; Said trip(ping) lever 52 is in the process that the axis direction along said rotating shaft 23 reciprocatingly moves; Will said each clutch friction component 51 be pressed on the said driven wheel 42 towards moving, make said main clutch friction plate 61, buffering friction plate 63 become tight the contact thereby drive said platen 53 with secondary clutch friction plate 62 near the direction of said driven wheel 42, thus perhaps drive said platen 53 towards the direction away from said driven wheel 42 move, no longer with said each clutch friction component 51 be pressed on make on the said driven wheel 42 said main clutch friction plate 61, cushion between friction plate 63 and the secondary clutch friction plate 62 and have the gap.
Said main clutch friction plate 61 comprises body 611 and at least three group shell fragments 612 that are arranged on body 611 edges; The said shell fragment 612 of respectively organizing includes two flexure strips 6121 of bending in opposite direction;
Said secondary clutch friction plate 62 also comprises body 621 and three groups of shell fragments 622 that are arranged on body 621 edges; The said shell fragment 622 of respectively organizing comprises two flexure strips 6221 of bending in opposite direction; The flexure strip 6121 of said main clutch friction plate 61 is identical, in the opposite direction with flexure strip 6221 positions of said secondary clutch friction plate 62.
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 through handle 33 rotation manual handles 3; And drive metal sleeve 31 and limit skateboard 32 rotations; Because the radial thickness of said limit skateboard 32 is less than the radial width of the chute 232 of said rotating shaft 23, the axial depth of said limit skateboard 32 is less than the axial depth of said chute 232; Make said limit skateboard 32 both can slide, can in said chute 232, turn an angle around the axis of rotating shaft 23 again along said chute 232 along rotating shaft 23 axis directions; So; Said openhanded handle 33 is in incipient rotation process, and promptly in certain little angular range, said limit skateboard 32 does not also touch the trough rim wall of said 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 through 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 said top-pressure part 541 and said manual handle also dissimilates thereupon; Because said rotating shaft 23 is to axially move, and can only sway, and adds the end that said top-pressure part 541 is fixedly installed on said rotating shaft 23 in addition; So when manual handle is just beginning to rotate the not limited as yet slide plate 32 of a low-angle and rotating shaft when driving; Said ball can be rolled in the more shallow hemispherical groove of one of which side from the darker hemispherical groove in centre, thereby the trip(ping) lever 52 that promotes to be fixedly connected with metal sleeve 31 moves certain distance towards the direction away from said top-pressure part 541, after this; Ball 542 receives the position-limiting action of roof pressure groove 5411, only in more shallow hemispherical groove, rolls; Thereby make clutch 5 be in " leaving " state, at this moment, driven wheel 42 idle running can not drive said drive link 43 through 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 said limit skateboard 32 can directly drive said rotating shaft 23, thereby realize manual duplicate supply conversion operations because said limit skateboard 32 has been against on the limit wall of said 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, said 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 through 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 through clutch friction component 51; Because the connecting portion of said drive link 43 is fixedly connected with said rotating shaft through a shaft coupling 100, rotates so said drive link 43 can directly drive rotating shaft 23, thereby realize the duplicate supply conversion operations.
Obviously, the above embodiment of the present invention only be for clearly the present invention is described and is done for example, and be not to be qualification to execution mode of the present invention.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.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 invention extends out and still belong to protection scope of the present invention.
Claims (7)
1. a 10KV vacuum circuit-breaker comprises vacuum circuit breaker body (1) and duplicate supply switching mechanism (2);
Said vacuum circuit breaker body (1) comprises housing (11), three inlet wire posts (12), three vacuum interrupters, three groups of dynamic/static contacts, three outlet column (13) and the tripping mechanism that matches with said dynamic/static contact;
It is characterized in that: said 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 said main power source binding post (21) and stand-by power supply binding post (22); Three insulated tension poles (25) that connect said rotating shaft (23) and said isolation knife (24); With the driving mechanism (26) that drives said rotating shaft (23) rotation;
The inlet wire post (12) of said 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 said each inlet wire post (12) and a corresponding isolation knife (24) are rotationally connected; Also comprise lightning protection device (7); Said lightning protection device (7) comprises the lightning arrester (71) that is fixedly installed on the housing (11);
Said housing (11) upper surface left-hand end and between said main power source binding post (21) and said 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 said each main power source lightning arrester (711) is electrically connected with a corresponding main power source binding post (21);
On the shell wall of said 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 said 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 said each main power source lightning arrester (711) and each stand-by power supply lightning arrester (712) is electrically connected through copper bar (400), and said copper bar (400) is electrically connected with earth lead; Said copper bar (400) is fixed on the housing (11), and is electrically connected with housing (11);
The left-hand end of said housing (11) and in the outside of said 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 said housing (11) and between said stand-by power supply binding post (22) and said 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).
2. 10KV vacuum circuit-breaker according to claim 1 is characterized in that: two binding posts of said 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 said 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; Said main power voltage instrument transformer (81) and said backup power source voltage instrument transformer (82) are all along the direction setting that is inclined upwardly from the horizontal by 45 degree angles.
3. 10KV vacuum circuit-breaker according to claim 1 is characterized in that: the driving mechanism (26) in the said duplicate supply switching mechanism (2) is the hand-movement and motor-driven integrative operating mechanism.
4. 10KV vacuum circuit-breaker according to claim 3 is characterized in that: said 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).
5. 10KV vacuum circuit-breaker according to claim 4 is characterized in that:
Said manual handle (3) comprises the metal sleeve (31) that is used to be set on said 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) handle (33) radially;
An end that matches with said manual handle (3) of said rotating shaft (23) is provided with chute (232); The limit skateboard (32) of said manual handle (3) is arranged in the said chute (232);
Said electric driving mechanism (4) comprise have output wheel (411) motor (41), by said output wheel (411) drive and be provided with vertically vestibule driven wheel (42), be arranged on the drive link (43) in said driven wheel (42) vestibule; Said drive link (43) is fixedly connected with rotating shaft (23), and said driven wheel (42) is a loose fit with drive link (43); One end of said drive link (43) is provided with the connecting portion (431), the other end that are used for being fixedly connected with rotating shaft (23) usefulness and is provided with forced section (432), and the outer surface of said forced section (432) is provided with several grooves that is provided with vertically (433);
Said driven wheel (42) drives said drive link (43) through clutch (5) and rotates to carry out electric operating.
6. 10KV vacuum circuit-breaker according to claim 5 is characterized in that:
Said clutch (5) comprises that several are set in platen (53), one that clutch friction component (51) on said drive link (43) forced section (432), a trip(ping) lever that is fixedly connected with handle (52), one be used to push the clutch friction assembly and are used for the said handle of roof pressure and are set in towards the roof pressure assembly (54) that moves near said drive link (43) direction, one and are used to said handle in the rotating shaft (23) spring of reseting elasticity (55) is provided; Said trip(ping) lever (52) is arranged in the vestibule (231) of said rotating shaft (23), and an end of said trip(ping) lever (52) is fixedly connected with handle, and the other end is fixedly connected with platen (53);
Said 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 said handle metal sleeve (31) outside; One side of the approaching said handle metal sleeve (31) of said top-pressure part (541) is provided with equally distributed four roof pressure grooves (5411); The basic configuration of said each roof pressure groove (5411) is the oval-shaped groove that the bottom surface tilts; Said ball (542) is arranged in the said roof pressure groove (5411); One side of the approaching said top-pressure part (541) of said handle metal sleeve (31) is provided with the hemispherical ball grooves (311) that matches with said roof pressure groove (5411);
The radial thickness of the limit skateboard (32) of said manual handle (3) is less than the radial width of the chute (232) of said rotating shaft (23), and the axial depth of said limit skateboard (32) is less than the axial depth of said chute (232); Make said limit skateboard (32) both can slide, can in said chute (232), turn an angle around the axis of rotating shaft (23) again along said chute (232) along rotating shaft (23) axis direction;
Said 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 said main clutch friction plate (61) and the secondary clutch friction plate (62); Said clutch friction component (51) is not when receiving extraneous pressure, and said main clutch friction plate (61) and secondary clutch friction plate (62) thereby offset makes and all leave the gap between said main clutch friction plate (61), buffering friction plate (63) and the secondary clutch friction plate (62); Said clutch friction component (51) is when receiving extraneous pressure; Deformation takes place with secondary clutch friction plate (62) in said main clutch friction plate (61), makes that the gap between said main clutch friction plate (61), buffering friction plate (63) and the secondary clutch friction plate (62) reduces until becoming tight contact; Said main clutch friction plate (61) is provided with the open-work that matches with said drive link (43) forced section (432) shape with the center of secondary clutch friction plate (62); The center of said buffering friction plate (63) is provided with circular hole; Said main clutch friction plate (61), buffering friction plate (63) and secondary clutch friction plate (62) all are set on said drive link (43) forced section (432), and are positioned between said driven wheel (42) and the platen (53);
Said trip(ping) lever (52) is arranged in the vestibule of said rotating shaft (23) and said drive link (43), and can reciprocatingly move along the axis direction of said rotating shaft (23); Said trip(ping) lever (52) is in the process that the axis direction along said rotating shaft (23) reciprocatingly moves; Drive said platen (53) towards near said driven wheel (42) thus direction move and will said each clutch friction component (51) be pressed on said driven wheel (42) and go up, make said main clutch friction plate (61), buffering friction plate (63) to become tight the contact with secondary clutch friction plate (62), perhaps drive said platen (53) towards the direction away from said driven wheel (42) move, no longer said each clutch friction component (51) is pressed on said driven wheel (42) thus upward make said main clutch friction plate (61), cushion between friction plate (63) and the secondary clutch friction plate (62) and have the gap.
7. 10KV vacuum circuit-breaker according to claim 6 is characterized in that: said main clutch friction plate (61) comprises body (611) and is arranged at least three group shell fragments (612) of body (611) edge; The said shell fragment (612) of respectively organizing includes two flexure strips of bending (6121) in opposite direction;
Said secondary clutch friction plate (62) also comprises body (621) and is arranged at least three group shell fragments (622) of body (621) edge; The said shell fragment (622) of respectively organizing comprises two flexure strips of bending (6221) in opposite direction; The flexure strip (6121) of said main clutch friction plate (61) is identical, in the opposite direction with flexure strip (6221) position of said secondary clutch friction plate (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101637800A CN101635223B (en) | 2009-01-07 | 2009-08-10 | 10KV vacuum circuit breaker |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910000095 | 2009-01-07 | ||
| CN200910000095.6 | 2009-01-07 | ||
| CN2009101637800A CN101635223B (en) | 2009-01-07 | 2009-08-10 | 10KV vacuum circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101635223A CN101635223A (en) | 2010-01-27 |
| CN101635223B true CN101635223B (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101637800A Expired - Fee Related CN101635223B (en) | 2009-01-07 | 2009-08-10 | 10KV vacuum circuit breaker |
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| Country | Link |
|---|---|
| CN (1) | CN101635223B (en) |
Families Citing this family (2)
| 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 |
| US9728362B2 (en) * | 2014-06-12 | 2017-08-08 | Abb Schweiz Ag | Dead tank circuit breaker with surge arrester connected across the bushing tops of each pole |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0065264A2 (en) * | 1981-05-12 | 1982-11-24 | Kabushiki Kaisha Toshiba | Gas-insulated switching apparatus |
| FR2580115A1 (en) * | 1985-04-09 | 1986-10-10 | Merlin Gerin | Electrical circuit breaker with wear compensation device |
| CN2472336Y (en) * | 2001-02-28 | 2002-01-16 | 西安前进电器实业有限公司 | Automatic vacuum voltage load switch on post |
| CN201038046Y (en) * | 2007-03-11 | 2008-03-19 | 郑文秀 | Highly intelligent duplicate power supply automatic switching device |
| CN101635224A (en) * | 2009-01-07 | 2010-01-27 | 浙江中意电气有限公司 | Manual and electrical integral operating mechanism of 10KV vacuum circuit breaker |
| CN201478187U (en) * | 2009-01-07 | 2010-05-19 | 浙江中意电气有限公司 | Manual-electric integrated operation mechanism for 10 kV vacuum circuit breaker |
| CN201490081U (en) * | 2009-01-07 | 2010-05-26 | 浙江中意电气有限公司 | Lightning protection device of 10KV vacuum circuit breaker |
-
2009
- 2009-08-10 CN CN2009101637800A patent/CN101635223B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0065264A2 (en) * | 1981-05-12 | 1982-11-24 | Kabushiki Kaisha Toshiba | Gas-insulated switching apparatus |
| FR2580115A1 (en) * | 1985-04-09 | 1986-10-10 | Merlin Gerin | Electrical circuit breaker with wear compensation device |
| CN2472336Y (en) * | 2001-02-28 | 2002-01-16 | 西安前进电器实业有限公司 | Automatic vacuum voltage load switch on post |
| CN201038046Y (en) * | 2007-03-11 | 2008-03-19 | 郑文秀 | Highly intelligent duplicate power supply automatic switching device |
| CN101635224A (en) * | 2009-01-07 | 2010-01-27 | 浙江中意电气有限公司 | Manual and electrical integral operating mechanism of 10KV vacuum circuit breaker |
| CN201478187U (en) * | 2009-01-07 | 2010-05-19 | 浙江中意电气有限公司 | Manual-electric integrated operation mechanism for 10 kV vacuum circuit breaker |
| CN201490081U (en) * | 2009-01-07 | 2010-05-26 | 浙江中意电气有限公司 | Lightning protection device of 10KV vacuum circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101635223A (en) | 2010-01-27 |
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