Plateau type high-voltage removable soft start cabinet easy to dissipate heat

Abstract

A plateau type high-voltage removable soft start cabinet easy to dissipate heat comprises a cabinet body and functional chambers, the interior of the cabinet body is divided into a secondary instrument chamber, a handcart chamber, a main bus chamber, a cable chamber, a soft start chamber, a small bus chamber, an air cooling heat dissipation assembly, a front cabinet door, a rear cabinet door, a cabinet top pressure relief plate, a header and a hanging ring, and in addition, a secondary component and related accessories are further installed in the cabinet. The intelligent protection measurement and control device realizes protection and measurement functions of soft start, operation and soft stop of the high-voltage motor and remote communication, and the soft start intelligent control device mainly realizes intelligent control and monitoring of the vacuum circuit breaker, the bypass switch and the dry-type voltage-regulating soft starter. When the air cooling heat dissipation assembly is combined with the soft start intelligent control device for use, forced air convection can be intelligently generated between air in the main bus chamber, the cable chamber, the handcart chamber and the soft start chamber and outside air, so that the heat dissipation effect of the main bus chamber, the cable chamber, the handcart chamber and the soft start chamber is improved; therefore, the condensation phenomenon in each functional chamber of the cabinet body is effectively prevented.

Description

Technical Field

[0001] The utility model relates to a soft starting device used in conjunction with a high-voltage motor, in particular to a high-voltage movable soft starting cabinet of an easy-to-dissipate plateau type. Background Art

[0002] my country has a vast territory and six climate zones of the world's nine climate types, including humid heat, subhumid warm temperature, cold temperature, cold, and dry heat. It also has a unique and vast high-altitude area in the world. The plateau area with an altitude of more than 2,000 meters accounts for 33% of the country's land area; the area with an altitude of more than 1,000 meters accounts for 58%, and there are 1,800 kilometers of coastline spanning from humid tropical to cold areas, 4.7 million square kilometers of offshore continental shelves, and the Taklimakan Desert, which is rich in oil resources. The power industry is a leading industry. In the high-altitude environment, there must be a large number of soft start devices that control high-voltage motors. Ordinary starting switch equipment will be seriously affected by such harsh natural environments, making the product unable to function normally or shortening its service life.

[0003] Most soft start products on the market cannot meet the requirements of high altitude areas. Due to the thin air and large temperature difference between day and night in plateau areas, high-voltage soft start cabinets used in plateau areas have shortcomings such as poor heat dissipation and easy condensation. Therefore, a utility model is urgently needed for a removable high-voltage soft start cabinet with good heat dissipation effect and intelligent and effective prevention of condensation in plateau areas. Summary of the invention

[0004] The utility model aims to provide an easy-to-dissipate heat plateau type high-voltage removable soft-start cabinet which has good heat dissipation effect and can effectively prevent condensation.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the main structure of the plateau-type high-voltage removable soft-start cabinet with easy heat dissipation includes a cabinet body and various functional rooms. The cabinet body skeleton structure and the partitions of each functional room are made of aluminum-zinc coated plates, which are assembled by multiple bending processes of CNC machine tools. The internal parts are divided into a main busbar room, a secondary instrument room, a trolley room, a soft starter room, a cable room, a small busbar room, an air-cooled heat dissipation component, and front and rear cabinet doors, a cabinet top pressure relief plate, a brow, and a hanging ring. In addition, primary and secondary components and related accessories are installed in the cabinet.

[0006] The cabinet skeleton structure adopts an assembled structure, which is mainly composed of the left front side panel, left rear side panel, right front side panel, right rear side panel, bottom plate, top cover plate, trolley room pressure relief plate, main busbar room pressure relief plate, cable room pressure relief plate, secondary instrument room panel, trolley room panel, soft start room panel, rear lower door and rear upper door.

[0007] The secondary instrument room panel, trolley room panel, soft starter room panel, rear lower door, and rear upper door all adopt a four-side locking structure, which can effectively protect against personal injury when an internal arc fault occurs. When an arc fault occurs inside the cabinet, the trolley room pressure relief plate, main busbar room pressure relief plate, and cable room pressure relief plate automatically open to release the pressure formed by the arc in time. The cabinet structure is all made of aluminum-zinc coated plates, which are assembled by multiple bending processes of CNC machine tools, ensuring the consistency and processing accuracy of the cabinet structure, while facilitating mass production.

[0008] Preferably, the secondary instrument room panel is equipped with an intelligent protection and control device and a soft start intelligent control device. In addition, the rear lower door is provided with a lighting lamp and an electromagnetic lock, so that the cabinet has a reliable mechanical locking device to ensure the safety of the operator.

[0009] Preferably, the main busbar chamber is arranged in the upper middle part of the cabinet, and is equipped with A / B / C three-phase main busbars, insulating bushings, insulating supports, A / B / C three-phase upper branch busbars and upper static contact boxes.

[0010] Preferably, the secondary instrument room is arranged in the upper front part of the cabinet, and the secondary components for control and protection, the secondary transfer terminals and the wire duct are installed therein. The secondary control wires are uniformly passed through the wire duct to each functional room to ensure safety and reliability between the functional rooms.

[0011] Preferably, the trolley room is arranged in the front middle of the cabinet, and the vacuum circuit breaker, left and right valve mechanisms, left and right tracks, and contact temperature sensing equipment are installed therein. The vacuum circuit breaker trolley can move forward and backward through the electric chassis at the bottom to reach the isolation, test, and working positions.

[0012] Preferably, the soft start chamber is arranged at the front lower part of the cabinet, and a dry-type voltage regulating soft starter and a temperature and humidity sensing device are installed therein.

[0013] Preferably, the cable room is arranged at the rear lower part of the cabinet, and is equipped with a current transformer, a zero-sequence transformer, a high-voltage sensor, an overvoltage protector, a bypass switch, a heating plate, a three-phase lower branch bus and a lower static contact box.

[0014] Preferably, the small busbar chamber is arranged at the front part of the cabinet top, and the chamber is provided with small busbar terminals, and up to 20 small busbars can be arranged in this chamber.

[0015] Preferably, the air-cooled heat dissipation components are arranged on both sides of the cabinet, including an air inlet component and an air outlet component. The air inlet component includes: a first induced draft fan, a second induced draft fan, a third induced draft fan, an air inlet drainage duct, a grid partition, and an air inlet. The air outlet component includes: a first heat dissipation fan, a second heat dissipation fan, a third heat dissipation fan, an air outlet drainage duct, a grid partition, and an air outlet.

[0016] Preferably, the ambient temperature and humidity are detected by the contact temperature sensing device and the temperature and humidity sensing device, and the data are transmitted to the soft start intelligent control device; the soft start intelligent control device automatically controls the heating plate, the heat dissipation fan and the induced draft fan according to the data, and it also has the function of automatic temperature and humidity adjustment and can provide an over-limit alarm function.

[0017] After adopting the above technical scheme, the utility model easy-to-dissipate heat plateau type high-voltage removable soft start cabinet installs the intelligent protection and measurement and control device and the soft start intelligent control device independently and separately, which not only makes the combination of the intelligent protection and measurement and control device and the soft start intelligent control device flexible, but also allows the selection of intelligent protection and measurement and control devices from different manufacturers, thus creating conditions for the intelligence of the entire soft start equipment.

[0018] The functions of the soft start intelligent control device in the utility model include: electric / manual vacuum circuit breaker and dry voltage regulating soft starter and bypass switch, online temperature monitoring of main bus room, cable room, trolley room and soft start room humidity measurement and control, primary circuit simulation dynamic display and fault alarm detection intelligent functions.

[0019] As can be seen from the above, the utility model has made a clear division of labor for the above two devices. By unifying the two devices, the soft start equipment has a clear division of labor for local and remote control and protection, complete functions, flexible combination without overlap, and lays a foundation for the intelligent soft start equipment to enter the market. When the air-cooled heat dissipation component is used in conjunction with the soft start intelligent control device, the air in the main bus room, cable room, trolley room, and soft start room can be intelligently forced to circulate with the outside air, thereby improving the heat dissipation effect of the main bus room, cable room, trolley room, and soft start room, and effectively preventing the occurrence of condensation in each functional room of the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] FIG1 is a front view of the high-voltage removable soft-start cabinet of the utility model that is easy to dissipate heat;

[0022] FIG2 is a rear view of the high-voltage removable soft-start cabinet with easy heat dissipation plateau of the utility model;

[0023] Figure 3 is a left side view of the utility model of the high-voltage removable soft start cabinet with easy heat dissipation Figure 1 ;

[0024] Figure 4 is a left side view of the utility model of the high-voltage removable soft start cabinet with easy heat dissipation Figure 2 ;

[0025] FIG5 is a side view of the air outlet assembly of the high-voltage removable soft-start cabinet with easy heat dissipation of the utility model;

[0026] 6 is a side view of the air inlet assembly of the high-voltage removable soft start cabinet with easy heat dissipation of the utility model;

[0027] FIG7 is a bottom view of the high-voltage removable soft-start cabinet with easy heat dissipation of the utility model;

[0028] FIG8 is a top view of the high-voltage removable soft-start cabinet of the utility model which is easy to dissipate heat.

[0029] The component names of each figure number in the figure are:

[0030] 1. Cabinet; 2. Main busbar room; 3. Cable room; 4. Secondary instrument room; 5. Cart room; 6. Soft start room; 7. Small busbar room; 8. Secondary instrument room panel; 9. Cart room panel; 10. Soft start room panel; 11. Rear upper door; 12. Rear lower door; 13. Cart room pressure relief plate; 14. Main busbar room pressure relief plate; 15. Cable room pressure relief plate; 16. Lifting ring; 17. Left front side plate; 18. Left rear side plate; 19. Right front side plate; 20. Right rear side plate; 21. Top cover plate; 22. Bottom plate; 23. Eyebrow; 24. Lighting lamp; 25. Electromagnetic lock; 101. Vacuum circuit breaker; 102. Current transformer; 103. Bypass switch; 104. Dry voltage regulating soft starter; 105. High voltage sensor; 106. Overvoltage protection Device; 107 zero sequence mutual inductor; 108, insulating sleeve; 109, insulating support; 110, upper branch bus; 111, main bus; 112, upper static contact box; 113, lower static contact box; 114, lower branch bus; 115, heating plate; 116, contact temperature sensing device; 117, static contact; 118, temperature and humidity sensing device; 201, first cooling fan; 202, second cooling fan; 203, third cooling fan; 204, air outlet and drainage duct; 205, grid partition; 206, air outlet; 301, first induced draft fan; 302, second induced draft fan; 303, third induced draft fan; 304; air inlet and drainage duct; 306, air inlet; a, intelligent protection and measurement and control device; b, soft start intelligent control device. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] As shown in FIGS. 1 to 8 , the heat-dissipating high-voltage removable soft-start cabinet mainly comprises a cabinet body 1 and various functional rooms. The cabinet body (1) skeleton structure and the partitions of the functional rooms are made of aluminum-zinc coated plates, which are assembled by multiple bending processes using CNC machine tools. The cabinet body (1) is divided into a secondary instrument room (4), a trolley room (5), a main bus room (2), a cable room (3), a soft-start room (6), a small bus room (7), an air-cooled heat dissipation component, and front and rear cabinet doors (8, 9, 10, 11, 12), a cabinet top pressure relief plate (13, 14, 15), a brow (23), and a lifting ring (16). In addition, primary and secondary components and related accessories are installed in the cabinet.

[0033] The cabinet (1) skeleton structure adopts an assembled structure, and is mainly composed of a left front side panel (17), a left rear side panel (18), a right front side panel (19), a right rear side panel (20), a bottom panel (22), a top cover panel (21), a trolley room pressure relief panel (13), a main busbar room pressure relief panel (14), a cable room pressure relief panel (15), a secondary instrument room panel (8), a trolley room panel (9), a soft starter room panel (10), a rear lower door (11), and a rear upper door (12).

[0034] The secondary instrument room panel (8), the trolley room panel (9), the soft starter room panel (10), the rear lower door (11), and the rear upper door (12) all adopt a four-side locking structure, which can effectively prevent personal injury when an internal arc fault occurs. When an arc fault occurs inside the cabinet, the trolley room pressure relief plate (13), the main busbar room pressure relief plate (14), and the cable room pressure relief plate (15) automatically open to release the pressure formed by the arc in time. The cabinet body (1) structure is entirely made of aluminum-zinc coated plates, which are assembled by multiple bending processes of CNC machine tools, ensuring the consistency and processing accuracy of the cabinet body (1) structure, while facilitating mass production.

[0035] like Figure 1 As shown, an intelligent protection measurement and control device (a) and a soft start intelligent control device (b) are installed on the secondary instrument room panel (9).

[0036] like Figure 2As shown, the rear lower door (11) is provided with an illumination lamp (24) and an electromagnetic lock (25), so that the cabinet (1) has a reliable mechanical locking device to ensure the safety of the operator.

[0037] like Figure 3 , Figure 4 As shown, the heat-dissipating high-voltage removable soft-start cabinet includes six functional rooms, namely: a main busbar room (2), a secondary instrument room (4), a trolley room (5), a soft-start room (6), a cable room (3) and a small busbar room (7).

[0038] In this embodiment, the main busbar chamber (2) is arranged in the upper middle part of the cabinet, and is installed with A / B / C three-phase main busbars (111), insulating bushings (108), insulating supports (109), A / B / C three-phase upper branch busbars (110) and upper static contact boxes (112). The main busbar insulating bushings (108) in the main busbar chamber (2) are arranged in a triangular shape, and the main busbar insulating bushings (108) are connected to the A-phase main busbar (111), the B-phase main busbar (111), and the C-phase main busbar (111). The three-phase main busbars (111) are connected to the static contacts (117) in the three-phase upper static contact boxes (112) through the A-phase upper branch busbar (110), the B-phase upper branch busbar (110), and the C-phase upper branch busbar (110), respectively. The connection is encapsulated with an insulating sheath to ensure the insulation reliability of the connection.

[0039] Furthermore, the secondary instrument room (4) is arranged at the upper front part of the cabinet, and secondary components for control and protection, secondary transfer terminals and wire ducts are installed therein. The secondary control wires are uniformly passed through the wire ducts to each functional room, ensuring the safety and reliability of the functional rooms.

[0040] Furthermore, the trolley room (5) is arranged in the front middle of the cabinet, and is equipped with a vacuum circuit breaker (101), left and right valve mechanisms, and left and right tracks. The vacuum circuit breaker (101) is an independently designed plateau-type intelligent sealed pole-type circuit breaker, which can move forward and backward through the electric chassis at the bottom to reach three positions: isolation, test, and working position. When the vacuum circuit breaker (101) is in the working position, the moving contacts of the upper and lower contact arms are respectively connected to the lower static contact box (113) and the static contacts (117) of the upper static contact box (112).

[0041] Furthermore, the soft start chamber (6) is arranged at the front lower part of the cabinet, and a dry voltage regulating soft starter (104) and a temperature and humidity sensor (118) are installed therein. The dry voltage regulating soft starter (104) drives the magnetic core to move in the reactor coil, thereby changing the impedance value of the reactor coil to adjust the motor terminal voltage, thereby achieving the motor soft start and soft stop functions. At the end of the starting process, the bypass switch (103) is closed to short-circuit the dry voltage regulating soft starter (104), and the motor enters normal operation; when soft stopping, the bypass switch (103) is opened, the dry voltage regulating soft starter (104) is reset, and when the motor terminal voltage slowly decreases, the vacuum circuit breaker (101) is opened.

[0042] Furthermore, the cable chamber (3) is arranged at the rear lower part of the cabinet, and is equipped with a current transformer (102), a zero-sequence current transformer (107), a high-voltage sensor (105), an overvoltage protector (106), a bypass switch (103), and an A / B / C three-phase lower branch busbar (114) and a lower static contact box (113). The A-phase lower branch busbar (114), the B-phase lower branch busbar (114), and the C-phase lower branch busbar (114) are connected to the static contact (117) in the three-phase lower static contact box (113). The connection is encapsulated with an insulating sheath to ensure the insulation reliability of the connection.

[0043] Furthermore, the small busbar chamber (7) is arranged at the front part of the cabinet top, and the chamber is further provided with a small busbar terminal, and up to 20 small busbars can be arranged in the chamber.

[0044] like Figure 5 , Figure 6 As shown, the air-cooled heat dissipation component includes an air inlet component and an air outlet component. The air inlet component includes: a first induced draft fan (301), a second induced draft fan (302), a third induced draft fan (303), an air inlet drainage duct (304), a mesh partition (205), and an air inlet (306). The air outlet component includes: a first heat dissipation fan (201), a second heat dissipation fan (202), a third heat dissipation fan (203), an air outlet drainage duct (204), a mesh partition (205), and an air outlet (206). Three layers of mesh partitions (205) are provided at the air inlet drainage duct (304) and at the air outlet drainage duct (204) and the air outlet (206). The three layers of mesh partitions (205) are activated to effectively prevent tiny particles and animals from entering the interior of the cabinet (1).

[0045] Furthermore, the first induced draft fan (301) is arranged at the rear side of the main busbar chamber (2) and enters the main busbar chamber (2) through the air inlet drainage duct (304); the second induced draft fan (302) is arranged at the rear of the cable chamber (3) and enters the cable chamber (3) and the trolley chamber (5) through the air inlet drainage duct (304); and the third induced draft fan (303) is arranged at the rear of the soft start chamber (6) and enters the soft start chamber (6) through the air inlet drainage duct (304).

[0046] Furthermore, the first heat dissipation fan (201) is arranged at the rear side of the main busbar chamber (2) and enters the main busbar chamber (2) through the air outlet drainage duct (204); the second heat dissipation fan (202) is arranged at the rear of the cable chamber (3) and enters the cable chamber (3) and the trolley chamber (5) through the air outlet drainage duct (204); and the third heat dissipation fan (203) is arranged at the rear of the soft start chamber (6) and enters the soft start chamber (6) through the air outlet drainage duct (204).

[0047] like Figure 7 , Figure 8 As shown, the air inlet (306) and the air outlet (206) are arranged at the top and bottom of the cabinet (1), respectively. The air inlet and outlet (306, 206) are arranged at the top and bottom of the cabinet (1), which not only facilitates the circulation and dissipation of hot air in the cabinet, but also does not affect the cabinet (1) from being assembled with other high-voltage switch cabinets.

[0048] Furthermore, the temperature and humidity of the environment in the cabinet are detected by the contact temperature sensing device (116) and the temperature and humidity sensing device (118), and the data is transmitted to the soft start intelligent control device (b); the soft start intelligent control device (b) automatically controls the heating plate (115) and the first to third heat dissipation fans (201, 202, 203), and the first to third induced draft fans (301, 302, 303) according to the data, and it also has the function of automatic temperature and humidity adjustment and can provide an over-limit alarm function. The operating principle of the automatic temperature and humidity monitoring is as follows:

[0049] 1) Set the upper and lower limits of temperature and humidity to T1 (temperature upper limit), T2 (temperature lower limit); H1 (humidity upper limit), H2 (humidity hysteresis);

[0050] 2) Low temperature and low humidity: When the humidity is ≤H1 and the temperature is ≤T2, the heating control output is started, and when the temperature rises to T2+2, the heating is stopped;

[0051] 3) High temperature and low humidity: When the humidity is ≤H1 and the temperature is ≥T1, the fan control output is started. When the temperature drops to T1-2, the heating is stopped and the fan is turned off.

[0052] 4) High temperature and high humidity: When the humidity is ≥H1 and the temperature is ≥T2+0.75*(T1-T2), start the fan; if the temperature is ≤T2+2 during this process, switch to start heating. If the temperature is ≥T1-2 during this process, start the fan again, and repeat the above actions until the humidity is ≤H1-H2;

[0053] 5) Low temperature and high humidity: When the humidity is NH1 and the temperature is ≤T2+0.75*(T1-T2), start heating. If the temperature is T1-2 during this process, start the fan; if the temperature is ≤T2+2 during this process, switch to starting heating. Repeat the above actions until the humidity is ≤Hl-H2.

[0054] Furthermore, in this embodiment, an intelligent protection and measurement device (a) and a soft start intelligent control device (b) are installed on the secondary instrument room panel (8). The intelligent protection and measurement device (a) mainly realizes the protection and measurement functions and remote communication of the soft start, operation and soft stop of the high-voltage motor and the dry voltage regulating soft starter (104). The soft start intelligent control device (b) mainly realizes the intelligent control and monitoring of the vacuum circuit breaker (101), the bypass switch (103) and the dry voltage regulating soft starter (104) and the communication with the intelligent protection and measurement device (a), such as: the electric / manual vacuum circuit breaker (101), the dry voltage regulating soft starter (104) and the bypass switch (103), the online temperature and humidity measurement and control of the main bus room (2), the cable room (3), the trolley room (5) and the soft start room (6), the primary circuit simulation dynamic display and the intelligent function of fault alarm detection.

[0055] The utility model is to install the intelligent protection measurement and control device (a) and the soft start intelligent control device (b) independently and separately, which not only makes the combination of the intelligent protection measurement and control device (a) and the soft start intelligent control device (b) flexible, but also allows the intelligent protection measurement and control devices (a) of different manufacturers to be selected.

[0056] As can be seen from the above, the utility model has made a clear division of labor for the above two devices. By unifying the two devices, the local and remote control and protection of the soft start equipment are clearly divided, the functions are complete, and the combination is flexible without overlapping, laying a foundation for the intelligent soft start equipment to enter the market. When the air-cooling heat dissipation component is used in combination with the soft start intelligent control device (b), the air in the main busbar room (2), the cable room (3), the trolley room (5), and the soft start room (6) can be intelligently forced to circulate with the outside air, thereby improving the heat dissipation effect of the main busbar room (2), the cable room (3), the trolley room (5), and the soft start room (6), thereby effectively preventing the occurrence of condensation in each functional room of the cabinet (1).

[0057] The above are only preferred implementations of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0058] Finally, it should be noted that the above embodiments only illustrate the technical solutions of the present invention, rather than limiting it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Easy-to-dissipate plateau high-voltage removable soft-start cabinet, its main structure includes cabinet body and various functional rooms. The cabinet body frame structure and the partitions of each functional room are made of aluminum-zinc plate, which are assembled by CNC machine tool processing and multiple bending. Its internal parts include main busbar room, secondary instrument room, trolley room, soft starter room, cable room, small busbar room, air-cooled heat dissipation components, front and rear cabinet doors, cabinet top pressure relief plate, brow, and ring. In addition, primary and secondary components and related accessories are installed in the cabinet; its characteristics are: The main busbar room is arranged in the upper middle part of the cabinet, and is equipped with A / B / C three-phase main busbars, insulating bushings and insulating supports, A / B / C three-phase upper branch busbars and upper static contact boxes; the secondary instrument room is arranged in the upper front part of the cabinet, and is equipped with secondary components and secondary transfer terminals and wire ducts for control and protection. The secondary control lines are uniformly passed through the wire ducts to each functional room to ensure the safety and reliability of the functional rooms; the trolley room is arranged in the front middle part of the cabinet, and is equipped with vacuum circuit breakers, left and right valve mechanisms, left and right tracks, and contact temperature sensing equipment; the vacuum circuit breaker trolley is connected to the cabinet through the electric bottom The turning gear can move forward and backward to reach the isolation, test and working positions; the soft starter room is arranged at the front lower part of the cabinet, and is equipped with a dry voltage regulating soft starter and temperature and humidity sensing equipment; the cable room is arranged at the rear lower part of the cabinet, and is equipped with a current transformer, a zero sequence transformer, a high voltage sensor, an overvoltage protector, a bypass switch, a heating plate and a three-phase lower branch bus and a lower static contact box; the small bus room is arranged at the front of the cabinet top, and the room is also provided with a small bus terminal, and up to 20 small busbars can be arranged in this room; the air-cooled heat dissipation components are arranged on both sides of the rear of the cabinet, including an air inlet component and an air outlet component; The air inlet assembly includes: a first induced draft fan, a second induced draft fan, a third induced draft fan, an air inlet drainage duct, a grid partition, and an air inlet; the air outlet assembly includes: a first heat dissipation fan, a second heat dissipation fan, a third heat dissipation fan, an air outlet drainage duct, a grid partition, and an air outlet.

2. According to claim 1, the heat dissipation plateau type high-voltage removable soft start cabinet is characterized in that: An intelligent protection and measurement device and a soft start intelligent control device are installed on the panel of the secondary instrument room. The intelligent protection and measurement device mainly realizes the protection and measurement functions of soft start, operation and soft stop of high-voltage motors as well as remote communication; the soft start intelligent control device mainly realizes the intelligent control and monitoring of vacuum circuit breakers, bypass switches and dry-type voltage regulating soft starters, as well as communication with the intelligent protection and measurement device.

3. According to claim 1, the plateau-type high-voltage removable soft-start cabinet that is easy to dissipate heat is characterized in that: further, the first induced draft fan is arranged at the rear side of the main busbar chamber, and enters the main busbar chamber through the air inlet drainage duct, the second induced draft fan is arranged at the rear of the cable chamber, and enters the cable chamber and the trolley chamber through the air inlet drainage duct; the third induced draft fan is arranged at the rear of the soft-start chamber, and enters the soft-start chamber through the air inlet drainage duct; the first heat dissipation fan is arranged at the rear side of the main busbar chamber, and enters the main busbar chamber through the air outlet drainage duct, the second heat dissipation fan is arranged at the rear of the cable chamber, and enters the cable chamber and the trolley chamber through the air outlet drainage duct; the third heat dissipation fan is arranged at the rear of the soft-start chamber, and enters the soft-start chamber through the air outlet drainage duct.

4. According to claim 1, the heat dissipation plateau type high-voltage removable soft start cabinet is characterized by: The air inlet and the air outlet are arranged at the top and the bottom of the cabinet, respectively, which is conducive to the circulation and dissipation of hot air in the cabinet.

5. According to claim 1, the heat dissipation plateau type high-voltage removable soft start cabinet is characterized in that: The contact temperature sensing device and the temperature and humidity sensing device are used to detect the ambient temperature and humidity in the cabinet, and transmit the data to the soft start intelligent control device; the soft start intelligent control device automatically controls the heating plate, the first heat dissipation fan, the second heat dissipation fan, the third heat dissipation fan and the first induced draft fan, the second induced draft fan, and the third induced draft fan according to the data.

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