CN217427473U - Combined electrical switch equipment - Google Patents
Combined electrical switch equipment Download PDFInfo
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- CN217427473U CN217427473U CN202221171818.6U CN202221171818U CN217427473U CN 217427473 U CN217427473 U CN 217427473U CN 202221171818 U CN202221171818 U CN 202221171818U CN 217427473 U CN217427473 U CN 217427473U
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Abstract
The utility model relates to a modular electrical switching apparatus, its innovation point lies in: including open-type circuit breaker, three station isolator of rotation type and airtight box, arrange in airtight box about open-type circuit breaker and the three station isolator of rotation type are respective main parts, be equipped with insulating gas in the airtight box, the circuit breaker operating device that open-type circuit breaker had and the three station operating device that three station isolator of rotation type had establish outside the airtight box and arrange in airtight box with one side. The utility model is not only simple in structure, compactness, the non-maintaining of conductive loop improves the operational safety moreover to and heat dispersion is good.
Description
Technical Field
The utility model relates to an electrical switching equipment, concretely relates to modular electrical switching equipment belongs to distribution switchgear's technical field.
Background
The gas-filled cabinet in the distribution switchgear is widely applied to a power grid system in recent years, the cabinet-shaped box body is generally filled with micro-positive pressure gas as an insulating medium of a conductive loop, and a vacuum arc extinguishing technology is adopted when the cabinet-shaped box body is closed or opened, so that the gas-filled cabinet has the characteristics of small floor area, strong dirt resistance, less maintenance and the like. The structure of each part of the existing air switch equipment is complex, the occupied space is large, the upper and lower connecting main boxes are of a split mounting type of a three-station box body and a breaker box body, the local position of a middle insulating sleeve with a three-station movable cutting board is exposed outside the box body, the three-station movable cutting board is easily influenced by the environment, the regular maintenance is needed, if the sleeve is not assembled in place, the risk of gas leakage in the box possibly exists, the reliability of product operation is reduced, the assembly and debugging and the operation in a factory of the structure are not simple and convenient, the overall production efficiency is influenced, meanwhile, the electric loop equipment of the breaker is fixedly sealed in a closed environment, the heat of a conductive assembly cannot be rapidly distributed, and the heat dissipation performance is not good.
Disclosure of Invention
The utility model aims at: the combined electrical switch equipment has a simple and compact structure, a conductive circuit is maintenance-free, operation safety is improved, and heat dissipation performance is good.
In order to achieve the above purpose, the technical scheme of the utility model is that: the combined electrical switch device has the innovation points that: comprises an open circuit breaker, a rotary three-station isolating switch and a closed box body, wherein the main bodies of the open circuit breaker and the rotary three-station isolating switch are vertically arranged in the closed box body, insulating gas is arranged in the closed box body,
the circuit breaker operating mechanism of the open circuit breaker and the three-position operating mechanism of the rotary three-position isolating switch are arranged outside the closed box body and are arranged on the same side of the closed box body.
In the above technical scheme, the open circuit breaker further includes an insulating frame and A, B, C three-phase voltage circuit breaking assemblies arranged on the insulating frame, each phase of the voltage circuit breaking assemblies includes a first insulating pull rod, a moving end conductive block, an upper connecting copper bar, a vacuum arc extinguish chamber, a stationary end conductive block and a lower connecting copper bar, the insulating frame is arranged in the closed box, the moving end conductive block and the stationary end conductive block are fixedly connected with the insulating frame, the upper connecting copper bar is connected with the moving end conductive block, the lower connecting copper bar is connected with the stationary end conductive block, the moving end of the vacuum arc extinguish chamber is in movable fit with the moving end conductive block, the stationary end is fixedly connected with the stationary end conductive block, and two ends of the first insulating pull rod are respectively fixedly connected with the moving end of the circuit breaker operating mechanism and the vacuum arc extinguish chamber.
In the technical scheme, the movable end conductive block is provided with a guide block, and the movable end of the vacuum arc extinguish chamber is in sliding fit with the guide block on the movable end conductive block and is fixedly connected with one end of the first insulation pull rod.
In the technical scheme, the rotary three-station isolating switch further comprises an adjusting connecting rod, a transmission shaft assembly, a three-phase bus static contact assembly, a three-phase insulating pull rod, a three-phase moving contact assembly and a three-phase grounding static contact assembly, wherein the transmission shaft assembly is arranged in the closed box and is rotatably connected with the closed box, the three-station operating mechanism is in transmission connection with the transmission shaft assembly through the adjusting connecting rod, the three-phase moving contact assembly is arranged in the closed box and is positioned at one side of the transmission shaft assembly, the three-phase bus static contact assembly is arranged in the closed box and is positioned above the three-phase moving contact assembly, the three-phase grounding static contact assembly is arranged in the closed box and is positioned below the transmission shaft assembly, two ends of the three-phase insulating pull rod are respectively and fixedly connected with the transmission shaft assembly and the three-phase moving contact assembly, and the transmission shaft assembly is driven to move according to different actions of the three-station operating mechanism, the three-phase moving contact assembly is located at an isolation position, the three-phase moving contact assembly and the three-phase bus static contact assembly are located at a connection position, and the three-phase moving contact assembly and the three-phase grounding static contact assembly are located at a connection position, so that three different stations of isolation, bus and grounding of the rotary three-station isolating switch are realized.
In the technical scheme, the transmission shaft assembly comprises a connecting crank arm, a magnetic fluid, three phase crank arms, a main shaft and a guide sleeve, the three phase crank arms are respectively fixedly connected with the main shaft, one end of each phase of insulating pull rod is fixedly connected with the corresponding phase crank arm, two ends of the main shaft are respectively matched and connected with one end of the magnetic fluid and the guide sleeve arranged on the inner side wall of the airtight box body, the connecting crank arms are arranged outside the airtight box body, one end of each connecting crank arm is fixed at the other end of the magnetic fluid, and two ends of the adjusting connecting rod are respectively connected with the three-station operating mechanism and the other end of each connecting crank arm in a rotating mode through a pin shaft.
In the above technical scheme, the three-phase bus static contact assembly comprises A, B, C three-phase bus static contact assemblies, each phase of bus static contact assembly comprises a cabinet combining sleeve, two bus copper bars and a bus static contact, two ends of the two bus copper bars are respectively and fixedly connected with the cabinet combining sleeve arranged in the closed box body and are located above the three-phase moving contact assembly, the bus static contact is arranged on the bus copper bars, the three-station operating mechanism drives the transmission shaft assembly to move, so that the three-phase moving contact assembly and the bus static contact can be connected, and the rotary three-station isolating switch is located at a bus station.
In the technical scheme, the three-phase moving contact assembly comprises A, B, C three-phase moving contact assemblies, each phase of moving contact assembly comprises an insulating sleeve, a rotating knife board and four moving contacts, the insulating sleeve is arranged in the closed box and located on one side of the transmission shaft assembly, the rotating knife board is rotatably connected with the insulating sleeve through a pin shaft, the four moving contacts are arranged on the rotating knife board simultaneously, the other end of each phase of insulating pull rod is fixedly connected with the movable end of the rotating knife board, and the four moving contacts can be located at an isolation position, are communicated with the three-phase bus static contact assembly and are communicated with the three-phase grounding static contact assembly under the action of the transmission shaft assembly, so that three different stations of isolation, buses and grounding of the rotary three-station isolating switch are realized.
In the above technical scheme, the three-phase grounding static contact assembly includes a bent plate base and an A, B, C three-phase grounding static contact, the bent plate base is arranged in the closed box and located below the transmission shaft assembly, and each grounding static contact is fixed on the bent plate base, the three-station operating mechanism drives the transmission shaft assembly to move, so that the three-phase moving contact assembly and the grounding static contact can be connected, and the rotary three-station isolating switch is located at a grounding station.
In the technical scheme, the closed box body comprises a cabinet body and a middle partition plate, two cavities which are arranged vertically and used for placing an open circuit breaker and a rotary three-station isolating switch are separated in the cabinet body through the middle partition plate, the open circuit breaker is located below the rotary three-station isolating switch, sealing cover plates are arranged on the top of the cabinet body and the outer walls of the two sides of the cabinet body, and the circuit breaker operating mechanism and the three-station operating mechanism are respectively connected with the corresponding sealing cover plates on the outer wall of one side of the cabinet body.
In the technical scheme, the bottom in the closed box body is provided with a plurality of cable inner taper sleeves, and the lower connecting copper bar of each phase is fixedly connected with the two cable inner taper sleeves.
The utility model discloses the positive effect who has is: after the combined electrical switch equipment of the utility model is adopted, because the combined electrical switch equipment comprises an open-type circuit breaker, a rotary three-station isolating switch and a closed box body, the main bodies of the open-type circuit breaker and the rotary three-station isolating switch are respectively arranged in the closed box body from top to bottom, insulating gas is arranged in the closed box body,
the circuit breaker operating mechanism of the open circuit breaker and the three-position operating mechanism of the rotary three-position isolating switch are arranged outside the closed box body and are arranged at the same side of the closed box body,
because the electric loops of the open circuit breaker and the rotary three-station isolating switch are completely sealed in the closed box body filled with insulating gas, the utility model replaces the technical proposal that the conductive loop is exposed in the air in the prior art, ensures that the conductive loop is not influenced by the environment, can realize the maintenance-free conductive loop and can also ensure the safety of operators,
moreover, because the three-position isolating switch of the utility model is a rotary mechanism, the three-position isolating switch can be in different position states through the rotary operation, thereby replacing the transmission control mode formed by the gear assembly, the transmission lead screw, the guide assembly and other parts in the prior art, not only simplifying the structure of the three positions, but also reducing the processing cost,
the existing circuit breaker is characterized in that parts such as a solid-sealed pole, a conductive assembly, an insulating pull rod and a corrugated pipe are fixedly installed in a closed box body, the defects that the heat of the conductive assembly inside the solid-sealed structure cannot be rapidly dissipated are caused, the heat dissipation performance is poor, due to the limitation of the structure, the circuit breaker can only be assembled according to an inherent mode, the position of a terminal of the pole cannot be adjusted, the compatibility is poor, the structure cannot be timely adjusted according to the requirement of the current level, and the cost is easily increased. The utility model discloses a circuit breaker is open-type structure, and the benefit of designing like this lies in: not only heat dispersion is good, and open structure can make different flexibility installations moreover, is suitable for different current class requirements, consequently, the utility model discloses a each position (circuit breaker and three-station isolator) simple structure, occupation space is little.
Drawings
FIG. 1 is a schematic structural view of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the present invention (with a portion of the cabinet plate removed);
fig. 3 is a schematic perspective view of an open circuit breaker according to the present invention;
fig. 4 is a schematic structural view of a bus station of the rotary three-station disconnecting switch of the utility model;
fig. 5 is a schematic structural view of an isolation station of the rotary three-station isolation switch of the present invention;
fig. 6 is a schematic structural diagram of the grounding station of the rotary three-station isolating switch of the present invention;
wherein, 1-open circuit breaker, 12-first insulating pull rod, 13-movable end conducting block, 131-guide block, 14-upper connecting copper bar, 15-vacuum arc extinguish chamber, 16-insulating frame, 17-stationary end conducting block, 18-lower connecting copper bar, 2-rotary three-station isolating switch, 22-adjusting connecting rod, 23-transmission shaft assembly, 231-connecting crank, 232-magnetofluid, 233-phase crank, 234-main shaft, 235-guide sleeve, 24-three-phase bus stationary contact assembly, 241-cabinet combining sleeve, 242-bus copper bar, 243-bus stationary contact, 25-three-phase insulating pull rod, 26-three-phase movable contact assembly, 261-insulating sleeve, 262-rotating knife plate, 263-movable contact, 27-three-phase grounding stationary contact assembly, 271-bent plate base, 272-grounding fixed contact, 3-sealed box, 31-cabinet, 32-middle partition plate and 33-sealing cover plate.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, but is not limited thereto.
As shown in fig. 1, 2, 3, 4, 5, and 6, a combined electrical switching apparatus includes an open circuit breaker 1, a rotary three-position disconnecting switch 2, and a sealed box 3, wherein respective main bodies of the open circuit breaker 1 and the rotary three-position disconnecting switch 2 are vertically arranged in the sealed box 3, and an insulating gas is provided in the sealed box 3, and the insulating gas is SF 6 Or is CO 2 、N 2 、C 4 、C 5 And the like, the circuit breaker operating mechanism 11 of the open circuit breaker 1 and the three-position operating mechanism 21 of the rotary three-position isolating switch 2 are arranged outside the closed box body 3 and are arranged at the same side of the closed box body 3,
namely the airtight box 3 includes cabinet body 31 and middle division board 32, divide into through middle division board 32 in the cabinet body 31 and be two cavities that arrange about and be used for settling open-type circuit breaker 1 and three station isolator 2 of rotation type, open-type circuit breaker 1 is located three station isolator 2's of rotation type below, all be equipped with sealed apron 33 on the top of cabinet body 31 and the outer wall of both sides, circuit breaker operating device 11 and three station operating device 21 are connected with the sealed apron 33 that corresponds on the outer wall of cabinet body 31 one side respectively, and wherein cabinet body 31 is by three station box and circuit breaker box, becomes the integral type cabinet body through location three-dimensional laser welding.
As shown in fig. 1, 2 and 3, in order to improve the heat dissipation performance of the conductive assembly in the electrical circuit, the open circuit breaker 1 further includes an insulating frame 16 and A, B, C three-phase voltage circuit breaking assemblies arranged on the insulating frame 16, each phase of the voltage circuit breaking assembly includes a first insulating pull rod 12, a moving end conductive block 13, an upper connecting copper bar 14, a vacuum arc-extinguishing chamber 15, a stationary end conductive block 17 and a lower connecting copper bar 18, the insulating frame 16 is arranged in the sealed box 3 and fixed on a sealing cover plate 33 provided with the circuit breaking operation mechanism 11, the moving end conductive block 13 and the stationary end conductive block 17 are both fixedly connected with the insulating frame 16, the upper connecting copper bar 14 is connected with the moving end conductive block 13, the lower connecting copper bar 18 is connected with the stationary end conductive block 17, the bottom in the sealed box 3 is provided with a plurality of cable inner cone sleeves 34, the lower connecting copper bar 18 of each phase is fixedly connected with two cable inner cone sleeves 34, the movable end of the vacuum arc extinguish chamber 15 is in movable fit with the movable end conducting block 13, the static end of the vacuum arc extinguish chamber is fixedly connected with the static end conducting block 17, and the two ends of the first insulating pull rod 12 are fixedly connected with the movable end of the circuit breaker operating mechanism 11 and the movable end of the vacuum arc extinguish chamber 15 respectively. The first insulating pull rod 12 is a circular insulating pull rod, and under the action of the circuit breaker operating mechanism 11, the first insulating pull rod 12 drives the moving end of the vacuum arc-extinguishing chamber 15 to move horizontally, so that the open-type circuit breaker 1 is in a switching-on or switching-off working state.
As shown in fig. 3, in order to guide the moving end of the vacuum interrupter 15, a guide block 131 is disposed on the moving end conductive block 13, and the moving end of the vacuum interrupter 15 is in sliding fit with the guide block 131 on the moving end conductive block 13 and is fixedly connected to one end of the first insulating pull rod 12.
As shown in fig. 4, 5 and 6, in order to make the three-position disconnecting switch located at different positions through rotation, the rotary three-position disconnecting switch 2 further includes an adjusting connecting rod 22, a transmission shaft assembly 23, a three-phase bus fixed contact assembly 24, a three-phase insulating pull rod 25, a three-phase moving contact assembly 26 and a three-phase grounding fixed contact assembly 27, the transmission shaft assembly 23 is disposed in the closed box 3 and rotatably connected thereto, the three-position operating mechanism 21 is drivingly connected to the transmission shaft assembly 23 through the adjusting connecting rod 22, the three-phase moving contact assembly 26 is disposed in the closed box 3 and located at one side of the transmission shaft assembly 23, the three-phase bus fixed contact assembly 24 is disposed in the closed box 3 and located above the three-phase moving contact assembly 26, the three-phase grounding fixed contact assembly 27 is disposed in the closed box 3 and located below the transmission shaft assembly 23, two ends of the three-phase insulating pull rod 25 are respectively fixedly connected to the transmission shaft assembly 23 and the three-phase moving contact assembly 26, according to different actions of a driving shaft assembly 23 driven by a three-position operating mechanism 21, a three-phase moving contact assembly 26 is located at an isolation position, the three-phase moving contact assembly 26 and a three-phase bus static contact assembly 24 are located at a connection position, and the three-phase moving contact assembly 26 and a three-phase grounding static contact assembly 27 are located at a connection position, three different positions of isolation, bus and grounding of the rotary three-position isolating switch 2 are achieved, wherein the three-phase insulating pull rods 25 are flat insulating pull rods.
As shown in fig. 4, 5 and 6, in order to optimize the transmission structure, save the manufacturing cost, and ensure the action of the three-position operating mechanism 21, and stably transmits power to the three-phase moving contact assembly, the transmission shaft assembly 23 comprises a connecting crank arm 231, a magnetic fluid 232, three phase crank arms 233, a main shaft 234 and a guide sleeve 235, the three phase crank arms 233 are respectively and fixedly connected with the main shaft 234, one end of each phase of insulating pull rod 25 is fixedly connected with a corresponding phase crank arm 233, two ends of the main shaft 234 are respectively assembled and connected with one end of the magnetic fluid 232 and a guide sleeve 235 arranged on the inner side wall of the closed box body 3, the connecting crank arm 231 is arranged outside the closed box body 3, and one end of the connecting crank arm 231 is fixed at the other end of the magnetic fluid 232, and two ends of the adjusting connecting rod 22 are respectively connected with the three-station operating mechanism 21 and the other end of the connecting crank arm 231 in a rotating manner through pin shafts.
As shown in fig. 4, 5, and 6, in order to quickly connect the three-phase moving contact assembly to the three-phase bus fixed contact assembly, the three-phase bus fixed contact assembly 24 includes A, B, C three-phase bus fixed contact assembly, each phase of bus fixed contact assembly includes a cabinet-combining sleeve 241, two bus copper bars 242, and a bus fixed contact 243, two ends of the two bus copper bars 242 are respectively fixedly connected to the cabinet-combining sleeve 241 disposed in the closed box 3 and located above the three-phase moving contact assembly 26, the bus fixed contact 243 is disposed on the bus copper bar 242, the three-station operating mechanism 21 drives the transmission shaft assembly 23 to move, so that the three-phase moving contact assembly 26 and the bus fixed contact 243 can be connected, and the rotary three-station disconnecting switch 2 is located at a bus station.
As shown in fig. 4, 5 and 6, to ensure that the drive shaft assembly can rapidly and accurately couple power to the movable contact piece, the three-phase movable contact assembly 26 includes A, B, C three-phase movable contact assemblies, and each of the moving contact assemblies includes an insulating sleeve 261, a rotary cutter plate 262 and four moving contacts 263, the insulating sleeve 261 is provided on the intermediate partition 32 inside the hermetic container 3 and on one side of the drive shaft assembly 23, the rotary knife board 262 is connected with the insulating sleeve 261 by a pin shaft, four moving contact blades 263 are arranged on the rotary knife board 262 at the same time, the other end of each phase of insulating pull rod 25 is fixedly connected with the movable end of the rotary knife board 262, under the action of the transmission shaft assembly 23, can be positioned at an isolation position, is communicated with a three-phase bus static contact assembly 24 and is communicated with a three-phase grounding static contact assembly 27, and three different stations of isolation, bus and grounding of the rotary three-station isolating switch 2 are realized.
As shown in fig. 4, 5, and 6, in order to realize a fast connection of the grounding station, the three-phase grounding fixed contact assembly 27 includes a bent plate base 271 and a three-phase grounding fixed contact A, B, C, the bent plate base 271 is disposed on the middle partition 32 in the sealed box 3 and is located below the transmission shaft assembly 23, each phase grounding fixed contact 272 is fixed on the bent plate base 271, the three-station operating mechanism 21 drives the transmission shaft assembly 23 to move, so that the three-phase moving contact assembly 26 is connected with the grounding fixed contact 272, and the rotary three-station disconnecting switch 2 is located at the grounding station.
The utility model discloses a working process:
as shown in fig. 3, closing of the open type circuit breaker 1: when the electric equipment is in a normal working state, the movable contact and the fixed contact in the vacuum arc extinguish chamber 15 are in a suction state;
opening of the open circuit breaker 1: when an emergency fault occurs in the electric equipment, the circuit breaker operating mechanism 11 acts and drives the moving contact and the static contact in the vacuum arc extinguish chamber 15 to be in a separated state through the first insulating pull rod 12, the circuit breaker is in an open state, once the fault is relieved, the moving contact and the static contact of the vacuum arc extinguish chamber 15 can be attracted again, and the reclosing is completed;
as shown in fig. 4, the rotary three-position disconnector 2 is in the bus position: the three-station operating mechanism 21 drives the adjusting connecting rod 22 to move, the adjusting connecting rod 22 drives the main shaft 234 to move anticlockwise through the connecting crank arm 231, and the flat insulating pull rod 25 connected to the connecting crank arm 233 drives the movable contact 263 to move towards the bus fixed contact 243 and be conducted with the bus fixed contact 243, so that the bus station is finally connected.
As shown in fig. 5, the rotary three-position disconnector 2 is in the isolating position: the three-station operating mechanism 21 drives the adjusting connecting rod 22 to move, the adjusting connecting rod 22 drives the main shaft 234 to move clockwise through the connecting crank arm 231, and the flat insulating pull rod 25 connected to the connecting crank arm 233 drives the movable contact 263 to move towards the grounding fixed contact 272, so that the isolation station is finally realized.
As shown in fig. 6, the rotary three-position disconnector 2 is in the grounding position: the three-station operating mechanism 21 drives the adjusting link 22 to move, the adjusting link 22 drives the main shaft 234 to continue clockwise movement through the connecting crank 231, the flat insulating pull rod 25 connected to the connecting crank 233 drives the movable contact 263 to continue moving to the grounding fixed contact 272 and to be conducted with the grounding fixed contact 272, and finally the movable contact 236 is switched from the isolating station to the grounding station.
Because the circuit breaker is open-type structure, not only heat dispersion is good, and open-type structure can make different flexibility installations moreover, is suitable for different current level requirements, three station isolator be rotary structure, can make three station isolator be in different station states through rotation operation, has just so simplified each position structure greatly for occupation space is little, and their respective electric return circuit is totally enclosed in the airtight box that is filled with insulating gas simultaneously, has replaced the technical scheme that the electric return circuit exposes in the air among the prior art, ensures that the electric return circuit no longer receives environmental impact, can realize the electric return circuit and exempt from the maintenance, also can ensure operating personnel's safety, three station isolator are rotary mechanism, simultaneously, the utility model discloses a cost is also low.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A modular electrical switching apparatus, characterized by: comprises an open circuit breaker (1), a rotary three-station isolating switch (2) and a closed box body (3), wherein the main bodies of the open circuit breaker (1) and the rotary three-station isolating switch (2) are vertically arranged in the closed box body (3), insulating gas is arranged in the closed box body (3),
the circuit breaker operating mechanism (11) of the open type circuit breaker (1) and the three-position operating mechanism (21) of the rotary three-position isolating switch (2) are arranged outside the closed box body (3) and are arranged on the same side of the closed box body (3).
2. Combined electrical switchgear device according to claim 1, characterized in that: the open-type circuit breaker (1) further comprises an insulating frame (16) and A, B, C three-phase voltage circuit breaking assemblies arranged on the insulating frame (16), each phase of voltage circuit breaking assembly comprises a first insulating pull rod (12), a movable end conductive block (13), an upper connecting copper bar (14), a vacuum arc extinguish chamber (15), a fixed end conductive block (17) and a lower connecting copper bar (18), the insulating frame (16) is arranged in the closed box body (3), the movable end conductive block (13) and the fixed end conductive block (17) are fixedly connected with the insulating frame (16), the upper connecting copper bar (14) is connected with the movable end conductive block (13), the lower connecting copper bar (18) is connected with the fixed end conductive block (17), the movable end of the vacuum arc extinguish chamber (15) is movably matched with the movable end conductive block (13), the fixed end is fixedly connected with the fixed end conductive block (17), two ends of the first insulating pull rod (12) are respectively connected with the movable end of the circuit breaker operating mechanism (11) and the vacuum arc extinguish chamber (15) And (4) fixedly connecting.
3. The modular electrical switching apparatus of claim 2 wherein: the movable end conducting block (13) is provided with a guide block (131), and the movable end of the vacuum arc extinguish chamber (15) is in sliding fit with the guide block (131) on the movable end conducting block (13) and is fixedly connected with one end of the first insulating pull rod (12).
4. Combined electrical switchgear device according to claim 1, characterized in that: the rotary three-position isolating switch (2) further comprises an adjusting connecting rod (22), a transmission shaft assembly (23), a three-phase bus static contact assembly (24), a three-phase insulating pull rod (25), a three-phase moving contact assembly (26) and a three-phase grounding static contact assembly (27), wherein the transmission shaft assembly (23) is arranged in the closed box body (3) and is rotationally connected with the closed box body, the three-position operating mechanism (21) is in transmission connection with the transmission shaft assembly (23) through the adjusting connecting rod (22), the three-phase moving contact assembly (26) is arranged in the closed box body (3) and is positioned on one side of the transmission shaft assembly (23), the three-phase bus static contact assembly (24) is arranged in the closed box body (3) and is positioned above the three-phase moving contact assembly (26), and the three-phase grounding static contact assembly (27) is arranged in the closed box body (3) and is positioned below the transmission shaft assembly (23), two ends of the three-phase insulating pull rod (25) are respectively fixedly connected with the transmission shaft assembly (23) and the three-phase moving contact assembly (26), the three-phase moving contact assembly (26) is located at an isolation position, the three-phase moving contact assembly (26) and the three-phase bus static contact assembly (24) are located at a connection position, and the three-phase moving contact assembly (26) and the three-phase grounding static contact assembly (27) are located at a connection position according to different actions of the transmission shaft assembly (23) driven by the three-station operating mechanism (21), so that three different stations of isolation, bus and grounding of the rotary three-station isolating switch (2) are realized.
5. The modular electrical switching apparatus of claim 4 wherein: the transmission shaft assembly (23) comprises a connecting crank arm (231), a magnetic fluid (232), three phase crank arms (233), a main shaft (234) and a guide sleeve (235), wherein the three phase crank arms (233) are fixedly connected with the main shaft (234) respectively, one end of each phase of insulating pull rod (25) is fixedly connected with the corresponding phase crank arm (233), two ends of the main shaft (234) are respectively assembled and connected with one end of the magnetic fluid (232) and the guide sleeve (235) arranged on the inner side wall of the closed box body (3), the connecting crank arm (231) is arranged outside the closed box body (3), one end of the connecting crank arm (231) is fixed at the other end of the magnetic fluid (232), and two ends of the adjusting connecting rod (22) are respectively rotatably connected with the other ends of the three-station operating mechanism (21) and the connecting crank arm (231) through a pin shaft.
6. The modular electrical switching apparatus of claim 4 wherein: the three-phase bus static contact assembly (24) comprises A, B, C three-phase bus static contact assemblies, each phase of bus static contact assembly comprises a cabinet combining sleeve (241), two bus copper bars (242) and a bus static contact (243), two ends of the two bus copper bars (242) are fixedly connected with the cabinet combining sleeve (241) arranged in the closed box body (3) and located above the three-phase moving contact assembly (26), the bus static contact (243) is arranged on the bus copper bars (242), and the three-station operating mechanism (21) drives the transmission shaft assembly (23) to move, so that the three-phase moving contact assembly (26) is communicated with the bus static contact (243), and the rotary three-station isolating switch (2) is located on a station bus.
7. The modular electrical switching apparatus of claim 4 wherein: the three-phase moving contact assembly (26) comprises A, B, C three-phase moving contact assemblies, each phase moving contact assembly comprises an insulating sleeve (261), a rotating knife plate (262) and four moving contacts (263), the insulating sleeve (261) is arranged in the closed box body (3) and is positioned at one side of the transmission shaft component (23), the rotary knife board (262) is rotationally connected with the insulating sleeve (261) through a pin shaft, four movable contact springs (263) are arranged on the rotary knife board (262) at the same time, the other end of each phase of insulating pull rod (25) is fixedly connected with the movable end of the rotary knife board (262), the four movable contact springs (263) are under the action of the transmission shaft component (23), the three-position isolating switch can be positioned at an isolating position, is communicated with a three-phase bus static contact assembly (24) and is communicated with a three-phase grounding static contact assembly (27), and three different positions of isolation, bus and grounding of the rotary three-position isolating switch (2) are realized.
8. The modular electrical switching apparatus of claim 4 wherein: the three-phase grounding static contact assembly (27) comprises a bent plate base (271) and A, B, C three-phase grounding static contacts (272), the bent plate base (271) is arranged in the closed box body (3) and is positioned below the transmission shaft assembly (23), each grounding static contact (272) is fixed on the bent plate base (271), the three-station operating mechanism (21) drives the transmission shaft assembly (23) to move, the three-phase moving contact assembly (26) can be communicated with the grounding static contacts (272), and the rotary three-station isolating switch (2) is positioned at a grounding station.
9. The modular electrical switching apparatus of claim 1 wherein: airtight box (3) are including the cabinet body (31) and well intermediate spacer (32), divide into through intermediate spacer (32) in the cabinet body (31) and be two cavities of arranging about and being used for settling open-type circuit breaker (1) and three station isolator of rotation type (2), open-type circuit breaker (1) are located three station isolator's of rotation type (2) below, all be equipped with sealed apron (33) on the outer wall of the top of the cabinet body (31) and both sides, circuit breaker operating device (11) and three station operating device (21) are connected with sealed apron (33) that correspond on the outer wall of cabinet body (31) one side respectively.
10. The modular electrical switching apparatus of claim 2 wherein: the bottom in the closed box body (3) is provided with a plurality of cable inner taper sleeves (34), and the lower connecting copper bar (18) of each phase is fixedly connected with the two cable inner taper sleeves (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221171818.6U CN217427473U (en) | 2022-05-16 | 2022-05-16 | Combined electrical switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221171818.6U CN217427473U (en) | 2022-05-16 | 2022-05-16 | Combined electrical switch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217427473U true CN217427473U (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221171818.6U Active CN217427473U (en) | 2022-05-16 | 2022-05-16 | Combined electrical switch equipment |
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| CN (1) | CN217427473U (en) |
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