CN102280832B - Box-type fixed high-voltage switch cabinet - Google Patents
Box-type fixed high-voltage switch cabinet Download PDFInfo
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- CN102280832B CN102280832B CN201110240171.8A CN201110240171A CN102280832B CN 102280832 B CN102280832 B CN 102280832B CN 201110240171 A CN201110240171 A CN 201110240171A CN 102280832 B CN102280832 B CN 102280832B
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Abstract
The invention discloses a box-type fixed high-voltage switch cabinet and belongs to the technical field of power transmission and distribution switch cabinets. The switch cabinet comprises a box body and the like, wherein the box body is a cuboid box; an inner cavity of the box body is divided into an electric control device space, a vacuum circuit breaker space, a transmission space, a cable bin space and an isolating switch space from top to bottom by a first clapboard, a second clapboard, a third clapboard, a fourth clapboard, a fifth clapboard and a sixth clapboard; an electric control mechanism is arranged in the electric control device space; a vacuum circuit breaker comprises three embedded poles which are arranged in the vacuum circuit breaker space in parallel along a length direction of the box body; a transmission device is arranged in the transmission space; a three-phase isolating switch unit and three external power supply inlet and outlet end devices are arranged in the isolating switch space and the cable bin space in parallel along a width direction of the box body; and an observation hole is formed on the box body. The switch cabinet has the advantages of small whole volume, simple layout and high operating safety of inner electrical equipment, the volume of the box body is greatly reduced, and the manufacturing cost is saved.
Description
Technical field
The present invention relates to a kind of power transmission and distribution switch cubicle, espespecially a kind of box fixed high-voltage switch cubicle.
Background technology
In existing manufacture power transmission and distribution device product technology, be air-insulated power transmission and distribution device mostly at present, this device volume is large, expends raw material many, takes up room large.
Summary of the invention
The object of the present invention is to provide a kind of box fixed high-voltage switch cubicle, succinct, the inner electrical equipment safety in operation of the small and exquisite layout of its overall volume is high, box volume reduces to save cost greatly.
To achieve these goals, technical solution of the present invention is: a kind of box fixed high-voltage switch cubicle, comprises vacuum circuit-breaker, three-phase isolation switch unit, electric control gear, transmission device and three external power supply in-out end devices, wherein also comprise the cuboid casing that solid insulating material is made, and the inner chamber top of described casing is provided with orthogonal first, two dividing plates, described first, two dividing plates and casing upper, before, left, right panel composition electric control gear interval, described electric control gear is installed in described electric control gear interval, and the inner chamber middle part of described casing is provided with the 3rd dividing plate of horizontal positioned, described first, three dividing plates and casing upper, after, left, right panel composition vacuum circuit-breaker interval, described vacuum circuit-breaker comprises three poles, described the 3rd dividing plate is provided with pole transmission case, three described poles are arranged side by side in described vacuum circuit-breaker interval along the length direction of casing, three described poles are all installed on described pole transmission case, the upper end of three described poles connects respectively three busbars and is flexible coupling, and three described busbars are flexible coupling and are connected with three busbars respectively, a left side for described casing, right panel top is respectively equipped with three first, two wall bushings, the two ends of three described busbars are respectively through three first, two wall bushings, three described poles are connected with three-phase isolation switch unit by three-phase solid insulated electric conductor respectively, and the inner chamber bottom of described casing is respectively equipped with the orthogonal the 5th, six dividing plates, the described the 5th, before six dividing plates and casing, under, left, right panel composition interval, cable storehouse, described the 6th dividing plate is provided with the fracture that three-phase isolation switch unit passes, and three described external power supply in-out end devices are installed in interval, described cable storehouse and along the Width of casing and are arranged side by side, the described the 3rd, under six dividing plates and casing, after, left, right panel forms isolating switch interval, and three described Disconnecting switch units are installed in described isolating switch interval, and three described Disconnecting switch units are arranged side by side along the Width of casing, second in described casing, before five dividing plates and casing, left, right panel composition transmission interval, described transmission device is installed in described transmission interval, and described casing is provided with observation window.
The box fixed high-voltage switch cubicle of the present invention, the header board of wherein said casing is from top to bottom connected to form by first, second and third door-plate successively, described the first door-plate is the door at electric control gear interval, described the second door-plate is the door at transmission interval, described the 3rd door-plate is the door at interval, cable storehouse, described the 3rd door-plate is provided with several observation windows, is respectively equipped with several flabellum holes on the forward and backward plate of described casing.
The box fixed high-voltage switch cubicle of the present invention, wherein said isolating switch is placed with PT power supply in interval, and after the inner chamber of described casing, plate surface is provided with forward two for placing the parallel crossbeam in left and right of Disconnecting switch unit described in three-phase.
The box fixed high-voltage switch cubicle of the present invention, the rear plate of wherein said casing from top to bottom successively by fourth, fifth, six back shrouds connect to form, described the 4th back shroud is the back shroud at vacuum circuit-breaker interval, the rear plate of described casing is provided with several relief holes, on each described relief hole, is separately installed with pressure release thin plate.
The box fixed high-voltage switch cubicle of the present invention, wherein described in three-phase, Disconnecting switch unit is installed on respectively in an isolated insulation cover, described insulating cover comprises the uncovered cuboid cover body below that solid insulating material is made, the upper plate of described cover body is provided with first shoulder hole of two-segment type up and down of convergent, in the upper knothole chamber of described the first shoulder hole, the first insulating case is installed, described the first insulating case is provided with the second shoulder hole, the lower plate of described cover body is provided with the first through hole, on described the first through hole, the second insulating case is installed, the center of described the second insulating case is provided with three-section type the 3rd shoulder hole of convergent, the header board front surface middle part of described cover body is provided with projection, described projection is provided with sleeve pipe connecting hole, described sleeve pipe connecting hole passes into the inner chamber of cover body, the 3rd insulated enclosure cover is installed in described sleeve pipe connecting hole, described the 3rd insulated enclosure is arranged with the 6th through hole that passes into mask body intracavity, a left side for described mask body intracavity, right side wall middle part is arranged with a pair of the first fin extending along cover body length direction, the header board of described cover body is spirally connected fixing by bolt and two described crossbeams, described Disconnecting switch unit comprises lengthening insulating bar, leading screw, conductive moving contact, room fixed contact, screw, isolation fixed contact, grounding static contact, conductive plate and input terminal, the upper end of described lengthening insulating bar is connected with described transmission device, described input terminal is fixed on the mask body intracavity upper surface of described isolated insulation cover, described input terminal is provided with second, three through holes, the shape symmetry of described isolation fixed contact and grounding static contact, the middle part of described isolation fixed contact and grounding static contact is respectively equipped with the 4th, five-way hole, the upper end of described isolation fixed contact is inserted in described third through-hole, described isolation fixed contact is fixedly connected with described input terminal, the lower end of described grounding static contact is installed in the 3rd shoulder hole of described the second insulating case, described room fixed contact and conductive moving contact are hollow circular cylinder, the outer surface of described room fixed contact is provided with annular the 5th fin, described the 5th fin is spirally connected fixing by the first fin of bolt and cover body, the described the 5th, between one fin, conductive plate is installed, described conductive plate is positioned at the 6th lead to the hole site place of described isolated insulation cover, described conductive moving contact is through the inner chamber of room fixed contact, the outer surface of described conductive moving contact is provided with and connects on it along axis direction, the groove of lower end, in described groove, be placed with slide bar, described slide bar and room fixed contact are connected and fixed, the upper end of described leading screw is connected with the lower end of described lengthening insulating bar, the lower end of described leading screw is successively through second of described cover body, one shoulder hole, the fourth hole of isolation fixed contact, the inner chamber of conductive moving contact, after the fifth hole of grounding static contact, be inserted in the 3rd shoulder hole of the second insulating case, on described leading screw, be bolted with screw, described screw is between leading screw and conductive moving contact, described screw and conductive moving contact are spirally connected, described the first insulating case upper, between bottom and leading screw, be separately installed with bearing holder (housing, cover) nut and deep groove ball bearing.
The box fixed high-voltage switch cubicle of the present invention, the header board upper and lower part of wherein said cover body is provided with respectively second observation window, the outer surface of described cover body is provided with some ring-type second fins parallel with the forward and backward surface of cover body, is positioned on the front surface of cover body header board of described projection upper and lower and is respectively equipped with third and fourth fin.
The box fixed high-voltage switch cubicle of the present invention, wherein each described external power supply in-out end device comprises respectively and connects paired cable, insulating sleeve, be flexible coupling, screw rod, cable sleeve and shutoff, described insulating sleeve is by the pipe of horizontal positioned and be vertical at pipe below vertical tube one on the right side and form, the shape of cross section of vertical tube is rectangle and two shapes that semicircle surrounds that are positioned at two ends, rectangle left and right shape symmetry, the internal chamber wall right side of pipe is provided with the first annular recess, described pipe and vertical tube are solid insulating material and make, described and connect paired cable and be installed on the inner chamber of described vertical tube, described and the lower end that connects paired cable is through the lower plate of described vertical tube and casing, upper end described and that connect paired cable is connected with the lower end being flexible coupling by screw bolt and nut, the inner chamber of described pipe is stretched in the described upper end being flexible coupling, the right-hand member socket cable sleeve pipe of described pipe, the left end of described pipe is installed shutoff, the upper end being flexible coupling described in described screw rod vertically passes, the right-hand member of described screw rod is connected with the left end of cable sleeve, the left end of described screw rod is connected with the right-hand member of shutoff.
The box fixed high-voltage switch cubicle of the present invention, wherein said cable sleeve is made up of connector and stepped stem, described connector is first of flaring from right to left by three, two, three cylindrical bar forms, the right side of described the first cylindrical bar is provided with the first thread groove that passes into the second cylindrical bar, the right side of described the second cylindrical bar is provided with the second annular recess, described second, smooth transition between three cylindrical bar, described stepped stem is the 4th of convergent from right to left by three, five, six cylindrical bars form, described the 4th cylindrical bar is positioned at the left side of described three cylindrical bar, the cross-sectional area of described the 4th cylindrical bar is greater than the cross-sectional area of three cylindrical bar, the right side of described the 4th cylindrical bar is provided with the 3rd annular recess, described the 5th cylindrical bar is plugged on described the first annular recess, described the 6th cylindrical bar is positioned at the inner chamber of described pipe, the outer surface of described the 6th cylindrical bar is provided with some articles of the first circular fins that are parallel to each other, the left end of described the 6th cylindrical bar is provided with the second thread groove being spirally connected with described screw rod right-hand member.
The box fixed high-voltage switch cubicle of the present invention, wherein said shutoff is made up of three the 7th round platform bar, the 8th, nine cylindrical bars that are from right to left flaring, the right side of described the 7th round platform bar is provided with the 3rd thread groove that passes into the 8th cylindrical bar and be spirally connected with described screw rod left end, described the 8th cylindrical bar is plugged in the inner chamber left end of described pipe, and the right side of described the 8th cylindrical bar is provided with the 4th annular recess.
The box fixed high-voltage switch cubicle of the present invention, one second nut is spirally connected in the middle part of the outer surface of wherein said screw rod, described the second nut and described in plain washer and spring washer are installed on screw rod between being flexible coupling, the described upper right being flexible coupling is against on the left side of described the 6th cylindrical bar, the described lower end being flexible coupling is inserted in and connects the upper end between paired cable, be positioned at described and connect on the shank of bolt on paired cable right side the second plain washer is installed, described and connect on the shank of bolt between paired cable left side and nut the 3rd plain washer and the second spring washer are installed.
Adopt after such scheme, the box fixed high-voltage switch cubicle of the present invention is by vacuum circuit-breaker, three-phase isolation switch unit, transmission device, the electric equipments such as electric control gear and external power supply in-out end device are installed in casing, cabinets cavity is divided into five intervals, electric control gear is installed in the electric control gear interval at position, front side, cabinets cavity top, vacuum circuit-breaker is installed in the vacuum circuit-breaker interval at rear side position, cabinets cavity top, enter in the interval, cable storehouse that external power supply in-out end device is installed on cabinets cavity lower front side position, three-phase isolation switch cellular installation is in the isolating switch interval at rear side position, cabinets cavity bottom, transmission device is installed in the transmission interval in cabinets cavity centre position, in limited space by various electric equipment rational deployment in casing, the volume of casing dwindles greatly, save cost, electric control gear is designed to integral type to be installed in automatically controlled interval, greatly reduce the height of casing, three poles of circuit breaker are adopted along casing length direction parallel arrangement mode, three external power supply in-out end devices and three-phase isolation switch unit are all adopted along casing Width and be arranged in parallel, greatly save space joint structure, the volume of whole switch cubicle is dwindled greatly, the topology layout that saves this product is simple, can observe the ruuning situation of electrical equipment in casing by the observation window on casing, circuit breaker adopts solid insulating material to connect with being connected of Disconnecting switch unit, operational reliability and fail safe that these designs have all improved switch cubicle.
Accompanying drawing explanation
Fig. 1 is the stereogram (removing the casing right side, rear plate) of the box fixed high-voltage switch cubicle of the present invention;
Fig. 2 is the right view (removing the casing right side, rear plate) of the box fixed high-voltage switch cubicle of the present invention;
Fig. 3 is the rearview (removing the casing right side, rear plate) of the box fixed high-voltage switch cubicle of the present invention;
Fig. 4 is the casing front view (removing the casing right side, rear plate) of the box fixed high-voltage switch cubicle of the present invention;
Fig. 5 is the casing front view of the box fixed high-voltage switch cubicle of the present invention;
Fig. 6 is the casing rearview of the box fixed high-voltage switch cubicle of the present invention;
Fig. 7 is the casing left view of the box fixed high-voltage switch cubicle of the present invention;
Fig. 8 is the casing right view of the box fixed high-voltage switch cubicle of the present invention;
Fig. 9 is the agent TV structure schematic diagram between external power supply in-out end device of the present invention and Disconnecting switch unit;
Figure 10 is the perspective view of the insulating sleeve of external power supply in-out end device of the present invention;
Figure 11 is the stereogram of isolated insulation cover of the present invention;
Figure 12 is the rearview of isolated insulation cover of the present invention;
Figure 13 is the left view of isolated insulation cover of the present invention;
Figure 14 is that Disconnecting switch unit of the present invention is installed on the agent view in isolated insulation.
Below in conjunction with accompanying drawing, by embodiment, the present invention is described further.
Embodiment
Refer to shown in Fig. 1 to Fig. 3, the box fixed high-voltage switch cubicle of the present invention comprises 1 casing 5 that vacuum circuit-breaker 1, three-phase isolation switch unit 2, electric control gear 3, transmission device, three external power supply in-out end devices 4 and solid insulating material are made.
In conjunction with shown in Fig. 5 to Fig. 8, the left and right plate top of casing 5 is processed with respectively three the first wall bushings 55 and three the second wall bushings 56, the two ends of three busbars 13 are respectively through first wall bushing 55 and second wall bushing 56, to be connected with other unit switch cabinet, three poles 11 connect respectively one end of three-phase solid insulated electric conductor 14.
Shown in Fig. 4, the inner chamber bottom of casing 5 is bolted respectively orthogonal the 5th dividing plate 57 and the 6th dividing plate 58, the 5th dividing plate 57, before the 6th dividing plate 58 and casing 5, under, left, right panel composition interval, cable storehouse 8, three external power supply in-out end devices 4 are installed in interval, cable storehouse 8 and are arranged side by side along the Width of casing 5, on the 6th dividing plate 58, be processed with fracture 581, fracture 581 is divided into the 6th dividing plate 58, lower two parts, the setting of fracture 581 is in order to allow one end of three-phase isolation switch unit 2 pass, to be connected with external power supply in-out end device 4.
Shown in Fig. 9 and Figure 10, each external power supply in-out end device 4 comprises respectively and connects paired cable 41, insulating sleeve 42, be flexible coupling 43, screw rod 44, cable sleeve 45 and shutoff 46, insulating sleeve 42 is by the pipe 421 of horizontal positioned and be vertical at pipe 421 belows vertical tube 422 one on the right side and form, the shape of cross section of vertical tube 422 is rectangle and two shapes that semicircle surrounds that are positioned at two ends, rectangle left and right shape symmetry, the internal chamber wall right side of pipe 421 is processed with the first annular recess 4211, pipe 4211 and vertical tube 422 are solid insulating material and make, and connect paired cable 41 and be installed on the inner chamber of vertical tube 422, and connect the lower end of paired cable 41 through the lower plate of vertical tube 422 and casing 5, and the upper end that connects paired cable 41 is connected with 43 the lower end of being flexible coupling by bolt 401 and nut 402, the inner chamber of pipe 421 is stretched in be flexible coupling 43 upper end, the right-hand member socket cable sleeve pipe 45 of pipe 421, cable sleeve 45 is made up of connector 451 and stepped stem 452, connector 451 is by three the first cylindrical bars 4511 that are from right to left flaring, the second cylindrical bar 4512 and three cylindrical bar 4513 form, the right side of the first cylindrical bar 4511 is processed with the first thread groove 45111 that passes into the second cylindrical bar 4512, the right side of the second cylindrical bar 4512 is processed with the second annular recess 45121, smooth transition between the second cylindrical bar 4512 and three cylindrical bar 4513, stepped stem 452 is by three the 4th cylindrical bars 4521 that are from right to left convergent, the 5th cylindrical bar 4522 and the 6th cylindrical bar 4523 form, the 4th cylindrical bar 4521 is positioned at the left side of three cylindrical bar 4513, the cross-sectional area of the 4th cylindrical bar 4521 is greater than the cross-sectional area of three cylindrical bar 4513, the right side of the 4th cylindrical bar 4521 is processed with the 3rd annular recess 45211, the 5th cylindrical bar 4522 is plugged on the first annular recess 4211, the 6th cylindrical bar 4523 is positioned at the inner chamber of pipe 421, the outer surface of the 6th cylindrical bar 4523 is processed with some articles of the first circular fins 45231 that are parallel to each other, the left end of the 6th cylindrical bar 4523 is processed with the second thread groove 45232 being spirally connected with screw rod 44 left ends, screw rod 44 is vertical through being spirally connected with the 6th cylindrical tube 4523 behind 43 the upper end of being flexible coupling.Shutoff 46 is made up of three the 7th round platform bar 461, the 8th cylindrical bar 462 and the 9th cylindrical bars 463 that are from right to left flaring, the right side of the 7th round platform bar 461 is processed with the 3rd thread groove 4611 that passes into the 8th cylindrical bar 462 and be spirally connected with screw rod 44 left ends, the 7th round platform bar 461 is spirally connected with the left end of screw rod 44, the 8th cylindrical bar 462 is plugged in the inner chamber left end of pipe 421, and the right side of the 8th cylindrical bar 462 is processed with the 4th annular recess 4621.The right side of the 9th cylindrical bar 463 is against on the left side of pipe 421.The second nut 47 is spirally connected in the middle part of the outer surface of screw rod 44, on the second nut 47 and the screw rod 44 that is flexible coupling between 43, plain washer 48 and spring washer 49 are installed, plain washer 48 and spring washer 49 be set be for guarantee between cable sleeve 45 and the second nut 47 be flexible coupling 43 clamped.43 the upper right of being flexible coupling is against on the left side of the 6th cylindrical bar 4523, be flexible coupling 43 lower end is inserted in and connects the upper end between paired cable 43, be positioned at and connect on bolt 401 bars on paired cable 43 right sides the second plain washer 403 is installed, and connect the 3rd plain washer 404 and the second spring washer 405 be installed on bolt 401 bars between paired cable 43 left sides and nut 402.It is to utilize its cushioning effect to guarantee the tightness of bolt 401 and nut 402 that the 3rd plain washer 404 and the second spring washer 405 are set.Inner chamber right-hand member at the pipe 421 of insulating sleeve 42 processes the first annular recess 4211, processes the second annular recess 45121 on the right side of the second cylindrical bar 4512, at the right side of the 4th cylindrical bar 4521 processing the 3rd annular recess 45211 and are all the creepage distances in order to improve external power supply in-out end device 4 at the right side of shutoff 46 processing the 4th annular recess 4621, can improve like this electric property, and improve the safety in operation of electrical equipment.
Shown in Fig. 1, Fig. 2 and Fig. 4, under the 3rd dividing plate 53, the 6th dividing plate 58 and casing 5, rear, left and right plate forms isolating switch interval 9, three Disconnecting switch units 2 and PT power supply 20 are all installed in this isolating switch interval 9, and the rear plate surface of casing 5 is bolted two crossbeams 40 that left and right is parallel.Three Disconnecting switch units 2 are arranged side by side along the Width of casing 5, the lower end of three-phase solid insulated electric conductor 14 enters in isolating switch interval 9 through after the 3rd dividing plate 53 respectively, in conjunction with shown in Figure 11 to Figure 14, three-phase isolation switch unit 2 is installed on respectively in an isolated insulation cover, insulating cover comprises the uncovered cuboid cover body 20 below that solid insulating material is made, the upper plate of cover body 20 is processed with first shoulder hole 201 of two-segment type up and down of convergent, in the upper knothole chamber of the first shoulder hole 201, the first insulating case 202 is installed, on the first insulating case 202, be processed with the second shoulder hole 2021, the lower plate of cover body 20 is processed with the first through hole 203, the second insulating case 204 is installed on the first through hole 203, the second insulating case 204 center is processed with three-section type the 3rd shoulder hole 2041 of convergent, the header board front surface middle part of cover body 20 is processed with projection 205, on projection 205, be processed with sleeve pipe connecting hole 2051, sleeve pipe connecting hole 2051 passes into the inner chamber of cover body 20, the interior installation of sleeve pipe connecting hole 2051 the 3rd insulated enclosure cover 206, on the 3rd insulated enclosure cover 206, be processed with cylindrical the 6th through hole 2061 of three grades of ladders that passes into cover body 20 inner chambers, be positioned on projection 205, on the front surface of cover body 20 header boards of below, be processed with respectively the 3rd fin 2010 and the 4th fin 2011.The header board upper and lower part of cover body 20 is processed with respectively second observation window 208, the outer surface of cover body 20 is welded with some ring-type second fins 209 parallel with the forward and backward surface of cover body 20, the left and right sidewall middle part of cover body 20 inner chambers is symmetrily processed with a pair of the first fin 207 extending along cover body 20 length directions, and cover body 20 is positioned on two crossbeams 40.The projection 205 of cover body 20 is through fracture 581.Disconnecting switch unit 2 comprises lengthening insulating bar 21, leading screw 22, conductive moving contact 23, room fixed contact 24, screw 25, isolation fixed contact 26, grounding static contact 27, conductive plate 28 and input terminal 29, input terminal 29 is fixed on the cover body 20 inner chamber upper surfaces of isolated insulation cover, on input terminal 29, be processed with the second through hole 291 and third through-hole 292, the lower end of three-phase solid insulated electric conductor 14 is spirally connected respectively fixing by the input terminal 29 of bolt and each Disconnecting switch unit 2, each bolt passes respectively the second through hole 291 of input terminal 29.The shape symmetry of isolation fixed contact 26 and grounding static contact 27, the middle part of isolation fixed contact 26 and grounding static contact 27 is processed with respectively fourth hole 261 and fifth hole 271, the upper end of isolation fixed contact 26 is inserted in third through-hole 292, isolation fixed contact 26 is fixedly connected with input terminal 29, the lower end of grounding static contact 27 is installed in the 3rd shoulder hole 2041 of the second insulating case 204, room fixed contact 24 and conductive moving contact 23 are hollow circular cylinder, the outer surface of room fixed contact 24 is processed with annular the 5th fin 241, the 5th fin 241 is spirally connected fixing by the first fin 207 of bolt and cover body 20, between the 5th fin 241 and the first fin 207, conductive plate 28 is installed, conductive plate 28 is positioned at the 6th through hole 2061 positions of isolated insulation cover, the first cylindrical bar 4511 of the cable sleeve 45 of external power supply in-out end device 4 stretches into the 6th through hole 2061 and is connected by screw fixing with conductive plate 28.Conductive moving contact 23 is through the inner chamber of room fixed contact 24, the outer surface of conductive moving contact 23 is processed with and connects on it along axis direction, the groove 231 of lower end, in groove 231, be placed with slide bar 232, slide bar 232 is bolted fixing with room fixed contact 24, the upper end of leading screw 22 is plugged in together with the lower end that lengthens insulating bar 21, the lower end of leading screw 22 is passed the second shoulder hole 2021 and first shoulder hole 201 of cover body 20 successively, the fourth hole 261 of isolation fixed contact 26, the inner chamber of conductive moving contact 23, after the fifth hole 271 of grounding static contact 27, be inserted in the 3rd shoulder hole 2041 of the second insulating case 204, screw 25 is spirally connected on leading screw 22, screw 25 is between leading screw 22 and conductive moving contact 23, screw 25 is spirally connected with conductive moving contact 23, the first insulating case 202 upper, between bottom and leading screw 22, be separately installed with bearing holder (housing, cover) nut 221 and deep groove ball bearing 222, on the leading screw 22 between upper end and deep groove ball bearing 222 and first insulating case 202 of deep groove ball bearing 222, be separately installed with a circlip 223.
Before second partition 52, the 5th dividing plate 57 and casing 5 in casing 5, left and right plate composition transmission interval 10, transmission device is installed in transmission interval 10, the isolation gear driver of transmission device is connected with the upper end of lengthening insulating bar 21.
The header board of casing 5 is from top to bottom connected to form by the first door-plate 511, the second door-plate 512 and the 3rd door-plate 513 successively, the first door-plate 511 is the door at electric control gear interval 6, the door that the second door-plate 512 is transmission interval 10, the 3rd door-plate 513 is the door at interval, cable storehouse 8, on the 3rd door-plate 513, be processed with two observation windows 514, the working condition of being convenient to like this observe the three-phase isolation switch unit 2 in casing, guarantees the stable operation of inner electrical equipment.On the forward and backward plate of casing 5, be processed with respectively several flabellum holes 515, be convenient to inner heat radiation of electrical apparatus.The rear plate of casing 5 is from top to bottom connected to form by the 4th back shroud 516, the 5th back shroud 517 and the 8th back shroud 518 successively, and the back shroud at vacuum circuit-breaker interval 7 is the 4th back shroud 516.On the rear plate of casing 5, be processed with several relief holes, pressure release thin plate 30 is installed on relief hole, arranging is like this for the explosion time that acquires a certain degree when the pressure in casing 5, pressure release thin plate 30 can be broken through and internal pressure is released.
When use, external power supply in-out end device 4 and connect paired cable 41 from the outside access of casing power supply, and connect paired cable 41 and 43 be connected with being flexible coupling, be flexible coupling 43 and cable sleeve 45 conductings, cable sleeve 45 is connected with conductive moving contact 23 through conductive plate 28.Transmission device is by man-operating mechanism operation element, in the time that transmission device drives the lengthening insulating bar 21 of Disconnecting switch unit 2 to rotate, lengthening insulating bar 21 drives leading screw 22 to rotate, because room fixed contact 24 and slide bar 232 and the first fin 207 are spirally connected fixing, and screw 25 is spirally connected fixing with conductive moving contact 23, like this in the time that leading screw 22 rotates, drive screw 25 to rotate backward, because being stopped by slide bar 232, can not rotate conductive moving contact 23, therefore can only move up and down along groove 231, like this when conductive moving contact 23 moves upward and isolate fixed contact 26 while contacting, for the "on" position of Disconnecting switch unit 2, it is line conduction, now three of circuit breaker 1 poles 11 close a floodgate under the control panel control of electric control gear 3, the pole 11 of circuit breaker 1 is respectively by three solid insulation conductors 14 and Disconnecting switch unit 2 conductive communication, electricity is flowed to three busbars and be flexible coupling 12 and three busbars 13, be connected with other unit cabinet again by three busbars 13, otherwise when external power supply in-out end device 4 and connect paired cable 41 from casing 5 to casing when out-put supply, the course of work is with lower good reverse above, it remains first and works by man-operating mechanism operating and driving device, make transmission device drive three-phase isolation switch unit 2 to close a floodgate, electric control gear 3 is controlled three poles 11 and is closed a floodgate, power supply accesses from three busbars 13, be flexible coupling 12 through three busbars, three poles 11 and three solid insulation conductors 14 are sent into three-phase isolation switch unit 2, after three-phase isolation switch unit 2 enters external power supply in-out end device 4, finally by electricity from and connect paired cable 41 and send into casing 5 outsides.When the work of man-operating mechanism control transmission device, while driving leading screw 22 to rotate backward, conductive moving contact 23 moves down along leading screw 22, in the time contacting with grounding static contact 27, for ground state, three poles 11 that now electric control gear 3 is controlled circuit breaker 1, in closing a floodgate or gate-dividing state, can carry out the inside electric mounting of switch cubicle under this state, safe and convenient; When man-operating mechanism control transmission device work, while making the inner chamber of conductive moving contact 23 in room fixed contact 24, be isolation, now electric control gear 3 is controlled circuit breaker 1 in gate-dividing state.
The box fixed high-voltage switch cubicle of the present invention is by vacuum circuit-breaker 1, three-phase isolation switch unit 2, transmission device, the electric equipments such as electrical control mechanism 3 and external power supply in-out end device 4 are installed in casing 5, casing 5 inner chambers are divided into five intervals, electrical control mechanism 3 is installed in the electric control gear interval 6 at casing 5 positions, front side, inner chamber top, vacuum circuit-breaker 1 is installed in the vacuum circuit-breaker interval 7 at casing 5 rear side positions, inner chamber top, external power supply in-out end device 4 is installed in the interval, cable storehouse 8 at casing 5 inner chamber lower front side positions, three-phase isolation switch unit 2 is installed in the isolating switch interval 9 at casing 5 rear side positions, inner chamber bottom, transmission device is installed in the transmission interval 10 in casing 5 inner chamber centre positions.The volume of switch cubicle of the present invention is dwindled greatly, layout advantages of simple, single-phase saving cost, can observe the ruuning situation of casing 5 interior electrical equipment by the observation window 514 on casing 5, circuit breaker 1 adopts solid insulating material to connect with being connected of Disconnecting switch unit 2, operational reliability and fail safe that these designs have all improved switch cubicle.Weight saving when single-phase installation simultaneously, installs more convenient.External power supply in-out end device 4 of the present invention adopts two cables and connects cable, so more save space, greatly improve equipment loaded current simultaneously, the working condition of three-phase isolation switch unit 2 can conveniently be observed from the second observation window 208 of the observation window of casing 5 514 and isolated insulation cover, has reduced Disconnecting switch unit 2 isolation fractures in isolated insulation cover accidents happened rate.
The above embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention, all should fall in the definite protection range of claims of the present invention.
Claims (10)
1. a box fixed high-voltage switch cubicle, comprise vacuum circuit-breaker (1), three-phase isolation switch unit (2), electric control gear (3), transmission device and three external power supply in-out end devices (4), it is characterized in that: also comprise the cuboid casing (5) that solid insulating material is made, the inner chamber top of described casing (5) is provided with orthogonal first, two dividing plates (51, 52), described first, two dividing plates (51, 52) upper with casing (5), before, left, right panel composition electric control gear interval (6), described electric control gear (3) is installed in described electric control gear interval (6), the inner chamber middle part of described casing (5) is provided with the 3rd dividing plate (53) of horizontal positioned, described first, three dividing plates (51, 53) upper with casing (5), after, left, right panel composition vacuum circuit-breaker interval (7), described vacuum circuit-breaker (1) comprises three poles (11), described the 3rd dividing plate (53) is provided with pole transmission case (15), three described poles (11) are arranged side by side in described vacuum circuit-breaker interval (7) along the length direction of casing (5), three described poles (11) are all installed on described pole transmission case (15), the upper end of three described poles (11) connects respectively three busbars be flexible coupling (12), three described busbars be flexible coupling (12) be connected with three busbars (13) respectively, a left side for described casing (5), right panel top is respectively equipped with three first, two wall bushings (55, 56), the two ends of three described busbars (13) are respectively through three first, two wall bushings (55, 56), three described poles (11) are connected with three-phase isolation switch unit (2) by three-phase solid insulated electric conductor (14) respectively, the inner chamber bottom of described casing (5) is respectively equipped with the orthogonal the 5th, six dividing plates (57, 58), the described the 5th, six dividing plates (57, 58) with casing (5) before, under, left, right panel composition interval, cable storehouse (8), described the 6th dividing plate (58) is provided with the fracture (581) passing three-phase isolation switch unit (2), three described external power supply in-out end devices (4) are installed in interval, described cable storehouse (8) and are arranged side by side along the Width of casing (5), the described the 3rd, six dividing plates (53, 58) with casing (5) under, after, left, right panel forms isolating switch interval (9), described three-phase isolation switch unit (2) is installed in described isolating switch interval (9), the hand down Width of casing (5) of three of described three-phase isolation switch unit (2) is arranged side by side, in described casing (5) second, before five dividing plates and casing (5), left, right panel composition transmission interval (10), described transmission device is installed in described transmission interval (10), described casing (5) is provided with observation window.
2. box fixed high-voltage switch cubicle as claimed in claim 1, it is characterized in that: the header board of described casing (5) is from top to bottom successively by first, two, three door-plates (511, 512, 513) connect to form, described the first door-plate (511) is the door of electric control gear interval (6), the door that described the second door-plate (512) is transmission interval (10), described the 3rd door-plate (513) is the door at interval, cable storehouse (8), described the 3rd door-plate (513) is provided with several observation windows (514), before described casing (5), on rear plate, be respectively equipped with several flabellum holes (515).
3. box fixed high-voltage switch cubicle as claimed in claim 1 or 2, it is characterized in that: in described isolating switch interval (9), be placed with PT power supply (20), after the inner chamber of described casing (5), plate surface is provided with forward two for placing the parallel crossbeam (40) in left and right of Disconnecting switch unit (2) described in three-phase.
4. box fixed high-voltage switch cubicle as claimed in claim 3, it is characterized in that: the rear plate of described casing (5) from top to bottom successively by fourth, fifth, six back shrouds (516,517,518) connect to form, described the 4th back shroud (516) is the back shroud of vacuum circuit-breaker interval (7), the rear plate of described casing (5) is provided with several relief holes, is separately installed with pressure release thin plate (30) on each described relief hole.
5. box fixed high-voltage switch cubicle as claimed in claim 4, it is characterized in that: Disconnecting switch unit described in three-phase (2) is installed on respectively in an isolated insulation cover, described insulating cover comprises the uncovered cuboid cover body (20) below that solid insulating material is made, the upper plate of described cover body (20) is provided with first shoulder hole of two-segment type up and down (201) of convergent, in the upper knothole chamber of described the first shoulder hole (201), the first insulating case (202) is installed, described the first insulating case (202) is provided with the second shoulder hole (2021), the lower plate of described cover body (20) is provided with the first through hole (203), the second insulating case (204) is installed on described the first through hole (203), the center of described the second insulating case (204) is provided with three-section type the 3rd shoulder hole (2041) of convergent, the header board front surface middle part of described cover body (20) is provided with projection (205), described projection (205) is provided with sleeve pipe connecting hole (2051), described sleeve pipe connecting hole (2051) passes into the inner chamber of cover body (20), the 3rd insulated enclosure cover (206) is installed in described sleeve pipe connecting hole (2051), described the 3rd insulated enclosure cover (206) is provided with the 6th through hole (2061) that passes into cover body (20) inner chamber, a left side for described cover body (20) inner chamber, right side wall middle part is arranged with a pair of the first fin (207) extending along cover body (20) length direction, the header board of described cover body (20) is spirally connected fixing by bolt and two described crossbeams (40), described Disconnecting switch unit (2) comprises lengthening insulating bar (21), leading screw (22), conductive moving contact (23), room fixed contact (24), screw (25), isolation fixed contact (26), grounding static contact (27), conductive plate (28) and input terminal (29), the upper end of described lengthening insulating bar (21) is connected with described transmission device, described input terminal (29) is fixed on cover body (20) the inner chamber upper surface of described isolated insulation cover, described input terminal (29) is provided with second, three through holes (291, 292), the shape symmetry of described isolation fixed contact (26) and grounding static contact (27), the middle part of described isolation fixed contact (26) and grounding static contact (27) is respectively equipped with the 4th, five-way hole (261, 271), the upper end of described isolation fixed contact (26) is inserted in described third through-hole (292), described isolation fixed contact (26) is fixedly connected with described input terminal (29), the lower end of described grounding static contact (27) is installed in the 3rd shoulder hole (2041) of described the second insulating case (204), described room fixed contact (24) and conductive moving contact (23) are hollow circular cylinder, the outer surface of described room fixed contact (24) is provided with annular the 5th fin (241), described the 5th fin (241) is spirally connected fixing by first fin (207) of bolt and cover body (20), the described the 5th, one fin (241, 207) conductive plate (28) is installed between, described conductive plate (28) is positioned at the 6th through hole (2061) position of described isolated insulation cover, described conductive moving contact (23) is through the inner chamber of room fixed contact (24), the outer surface of described conductive moving contact (23) is provided with and connects on it along axis direction, the groove (231) of lower end, in described groove (231), be placed with slide bar (232), described slide bar (232) is connected and fixed with room fixed contact (24), the upper end of described leading screw (22) is connected with the lower end of described lengthening insulating bar (21), the lower end of described leading screw (22) is successively through second of described cover body (20), one shoulder hole (2021, 201), the fourth hole (261) of isolation fixed contact (26), the inner chamber of conductive moving contact (23), after the fifth hole (271) of grounding static contact (27), be inserted in the 3rd shoulder hole (2041) of the second insulating case (204), on described leading screw (22), be bolted with screw (25), described screw (25) is positioned between leading screw (22) and conductive moving contact (23), described screw (25) is spirally connected with conductive moving contact (23), described the first insulating case (202) upper, between bottom and leading screw (22), be separately installed with bearing holder (housing, cover) nut (221) and deep groove ball bearing (222).
6. box fixed high-voltage switch cubicle as claimed in claim 5, it is characterized in that: the header board upper and lower part of described cover body (20) is provided with respectively second observation window (208), the outer surface of described cover body (20) is provided with some ring-type second fins (209) parallel with the forward and backward surface of cover body (20), be positioned on the front surface of cover body (20) header board of described projection (205) upper and lower and be respectively equipped with third and fourth fin (2010,2011).
7. box fixed high-voltage switch cubicle as claimed in claim 6, it is characterized in that: each described external power supply in-out end device (4) comprises respectively and connects paired cable (41), insulating sleeve (42), (43) are flexible coupling, screw rod (44), cable sleeve (45) and shutoff (46), described insulating sleeve (42) is by the pipe (421) of horizontal positioned and be vertical at pipe (421) below vertical tube (422) one on the right side and form, the shape of cross section of vertical tube (422) is rectangle and two shapes that semicircle surrounds that are positioned at two ends, rectangle left and right shape symmetry, the internal chamber wall right side of pipe (421) is provided with the first annular recess (4211), described pipe (421) and vertical tube (422) are solid insulating material and make, described and connect paired cable (41) and be installed on the inner chamber of described vertical tube (422), described and the lower end that connects paired cable (41) is through the lower plate of described vertical tube (422) and casing (5), upper end described and that connect paired cable (41) is connected with the lower end of be flexible coupling (43) with nut (402) by bolt (401), the inner chamber of described pipe (421) is stretched in the described upper end that is flexible coupling (43), the right-hand member socket cable sleeve pipe (45) of described pipe (421), the left end of described pipe (421) is installed shutoff (46), the upper end of (43) is flexible coupling described in described screw rod (44) vertically passes, the right-hand member of described screw rod (44) is connected with the left end of cable sleeve (45), the left end of described screw rod (44) is connected with the right-hand member of shutoff (46).
8. box fixed high-voltage switch cubicle as claimed in claim 7, it is characterized in that: described cable sleeve (45) is made up of connector (451) and stepped stem (452), described connector (451) is first of flaring from right to left by three, two, three cylindrical bar (4511, 4512, 4513) form, the right side of described the first cylindrical bar (4511) is provided with the first thread groove (45111) that passes into the second cylindrical bar, the right side of described the second cylindrical bar (4512) is provided with the second annular recess (45121), described second, three cylindrical bar (4512, 4513) smooth transition between, described stepped stem (452) is the 4th of convergent from right to left by three, five, six cylindrical bars (4521, 4522, 4523) form, described the 4th cylindrical bar (4521) is positioned at the left side of described three cylindrical bar (4513), the cross-sectional area of described the 4th cylindrical bar (4521) is greater than the cross-sectional area of three cylindrical bar (4513), the right side of described the 4th cylindrical bar (4521) is provided with the 3rd annular recess (45211), described the 5th cylindrical bar (4522) is plugged on described the first annular recess (4211), described the 6th cylindrical bar (4523) is positioned at the inner chamber of described pipe (421), the outer surface of described the 6th cylindrical bar (4523) is provided with some articles of the first circular fins (45231) that are parallel to each other, the left end of described the 6th cylindrical bar (4523) is provided with the second thread groove (45232) being spirally connected with described screw rod (44) right-hand member.
9. box fixed high-voltage switch cubicle as claimed in claim 8, it is characterized in that: described shutoff (46) is by three the 7th round platform bar, the 8th, nine cylindrical bars (461 that are from right to left flaring, 462,463) form, the right side of described the 7th round platform bar (461) is provided with the 3rd thread groove (4611) that passes into the 8th cylindrical bar (462) and be spirally connected with described screw rod (44) left end, described the 8th cylindrical bar (462) is plugged in the inner chamber left end of described pipe (421), and the right side of described the 8th cylindrical bar (462) is provided with the 4th annular recess (4621).
10. box fixed high-voltage switch cubicle as claimed in claim 9, it is characterized in that: one second nut (47) is spirally connected in the middle part of the outer surface of described screw rod (44), be positioned at described the second nut (47) and described in plain washer (48) and spring washer (49) are installed on the screw rod (44) that is flexible coupling between (43), the described upper right that is flexible coupling (43) is against on the left side of described the 6th cylindrical bar (4523), the described lower end that is flexible coupling (43) is inserted in and connects the upper end between paired cable (43), be positioned at described and connect on bolt (401) bar on paired cable (43) right side the second plain washer (403) is installed, be positioned at described and connect on bolt (401) bar between paired cable (43) left side and nut (402) the 3rd plain washer (404) and the second spring washer (405) are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110240171.8A CN102280832B (en) | 2011-08-19 | 2011-08-19 | Box-type fixed high-voltage switch cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110240171.8A CN102280832B (en) | 2011-08-19 | 2011-08-19 | Box-type fixed high-voltage switch cabinet |
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| Publication Number | Publication Date |
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| CN102280832A CN102280832A (en) | 2011-12-14 |
| CN102280832B true CN102280832B (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110240171.8A Active CN102280832B (en) | 2011-08-19 | 2011-08-19 | Box-type fixed high-voltage switch cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921122A (en) * | 2015-12-24 | 2017-07-04 | 沈阳昊诚电气有限公司 | The environmentally friendly full-insulated full-sealed miniaturization switch cubicle of gas |
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| CN102412519B (en) * | 2011-12-23 | 2014-04-23 | 珠海康晋电气有限公司 | Solid-sealed polar pole with insulation and switch cabinet |
| CN106816340B (en) * | 2015-11-30 | 2020-02-18 | 沈阳昊诚电气有限公司 | Three-station isolating switch and switch cabinet with same |
| CN105429015A (en) * | 2015-12-01 | 2016-03-23 | 国网河南宜阳县供电公司 | Box-type high-voltage switch cabinet and method |
| CN105449575B (en) * | 2015-12-03 | 2019-02-01 | 天津平高智能电气有限公司 | A kind of gas-filling cabinet and its pole |
| CN105552738B (en) * | 2016-01-29 | 2018-06-29 | 益和电气集团股份有限公司 | A kind of switchgear |
| CN114649768A (en) * | 2020-12-17 | 2022-06-21 | 浙江衢能电气有限公司 | GCK type drawer type switch cabinet with heat dissipation function |
| CN114530345B (en) * | 2022-04-24 | 2022-09-02 | 江苏大烨智能电气股份有限公司 | Isolation breaker switch on integral type |
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| JP4193099B2 (en) * | 2002-07-31 | 2008-12-10 | 富士電機システムズ株式会社 | Gas insulated switchgear |
| JP4866949B2 (en) * | 2009-09-07 | 2012-02-01 | 株式会社日立製作所 | Vacuum insulated switchgear |
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| CN201402916Y (en) * | 2009-05-01 | 2010-02-10 | 山东泰开成套电器有限公司 | Armored type fixed switch cabinet |
| CN201562906U (en) * | 2009-11-25 | 2010-08-25 | 亚洲电力设备(深圳)有限公司 | Gas-filled high voltage switch equipment |
| CN202210644U (en) * | 2011-08-19 | 2012-05-02 | 北京清畅电力技术股份有限公司 | Box type fixed high-voltage switchgear |
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| CN102280832A (en) | 2011-12-14 |
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Denomination of invention: Box-type fixed high-voltage switch cabinet Effective date of registration: 20170607 Granted publication date: 20140528 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: Beijing Qingchang Power Technology Co., Ltd. Registration number: 2017990000467 |
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Date of cancellation: 20190225 Granted publication date: 20140528 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: Beijing Qingchang Power Technology Co., Ltd. Registration number: 2017990000467 |