Substation fine reactive compensation device

Abstract

The utility model discloses a substation fine reactive compensation device sets up two air -inducing parts and realizes the flow of airflow, plays the purpose of the preliminary heat dissipation, further, set up first baffle, heat exchange plate and second baffle, air -inducing part blows the outside airflow to first baffle, and first baffle blows the airflow to heat exchange plate, and then after heat exchange plate guides to second baffle, realizes the multidirectional flow of air, second baffle is installed in the front plate close to the air -intaking end place, thus the airflow is blown to the backboard side, and the electric appliance is usually installed on the backboard, can fully carry out the airflow guide heat dissipation to the electric appliance, and the airflow after the heat dissipation of electric appliance will blow to heat exchange plate through first baffle, and heat exchange plate is connected with top plate or bottom plate, improves the heat exchange effect through top plate and bottom plate, plays the purpose of reducing the airflow temperature, makes the subsequent airflow heat exchange cooling purpose, avoids the situation that the heat dissipation effect is poor at the air -outlet end because of the overlength of electric cabinet.

Description

Technical Field

[0001] This utility model relates to the field of reactive power compensation technology, and in particular to a refined reactive power compensation device for substations. Background Technology

[0002] Reactive power compensation is a crucial technology for the efficient and stable operation of power systems. Its core objective is to improve the power factor of the power grid, reduce the flow of reactive power in the grid, and improve the efficiency of power utilization. A refined reactive power compensation device refers to a reactive power compensation device in which a group of capacitors can be divided into multiple groups, and each group can be automatically switched on and off independently. The compensation effect will vary depending on the grouping. Therefore, multiple capacitor banks need to be used in combination when assembling a refined reactive power compensation device.

[0003] However, existing capacitor cabinets are individual cabinets. When multiple cabinets are used together, the heat from the capacitor cabinet in the middle can only pass through the front and rear ends, and some heat will spread to the sides. Its heat dissipation effect is poor, which can easily cause capacitors and other electronic components to heat up and accumulate heat, resulting in reduced reactive power compensation efficiency or increased heat loss of electronic components. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the existing technology, it is desirable to provide a refined reactive power compensation device for substations.

[0005] The refined reactive power compensation device for substations provided by this utility model includes: Several steel frames are arranged along a first direction, and side plates are installed at the far ends of the steel frames at both ends along the first direction. The outer cladding includes a top plate installed on the top surface of the steel frame, a bottom plate installed on the bottom surface of the steel frame, a front plate installed on the front end of the steel frame, and a back plate installed on the rear end of the steel frame. The heat dissipation mechanism includes two air intakes respectively located on two side plates. The air flow direction of the two air intakes is the same, and they are respectively marked as the air inlet and the air outlet. The top surface of the bottom plate and the bottom surface of the top plate are provided with heat exchange plates near the air inlet. The end of the back plate near the air outlet is provided with a first baffle plate, and the end of the front plate near the air inlet is provided with a second baffle plate. The first baffle plate and the second baffle plate are both inclined in a first direction towards the air outlet, and they are located on both sides of the heat exchange plate.

[0006] According to the technical solution provided in the embodiments of this application, the rear end faces of adjacent steel frames are provided with back connection components. The back connection components include connecting blocks located at adjacent rear end faces of two steel frames. A second through hole is provided between the connecting blocks, the steel frames and the back plate.

[0007] According to the technical solution provided in the embodiments of this application, the heat dissipation mechanism further includes a mounting portion disposed at one end of the connecting block, the mounting portion comprising: The third mounting block is located at the end of the connecting block near the air inlet end, and has a first inclined surface away from the end of the connecting block. The normal of the first inclined surface is perpendicular to the normal of the first baffle plate. The first inclined surface of the third mounting block has a mounting through hole that penetrates the third mounting block and the back plate. A mounting stud is installed through the mounting through hole, with one end connected to the first baffle plate. The side surface of the mounting stud is provided with several clearance grooves. An extension threaded plate is provided inside the mounting through hole at the position corresponding to the clearance groove. The mounting stud and the extension threaded plate are externally threaded with a mounting nut.

[0008] According to the technical solution provided in the embodiments of this application, a positioning mechanism is also installed on the front plate, which is used to assist in the positioning and placement of the steel frame.

[0009] According to the technical solution provided in the embodiments of this application, the positioning mechanism includes: The second mounting block is installed on the right side of the front panel, and a blocking block is provided in the middle of the front end face. The first mounting block is installed on the left side of the front panel. Its end away from the second mounting block is hinged to the tail end of the swing plate via a hinge shaft. The axis of the hinge shaft extends in a vertical direction. The length of the swing plate is greater than the length of the first mounting block. An indicator light is provided on the end of the swing plate away from the front panel. The swing plate has a first state, a second state, and a third state; When in the first state, the swing plate is in contact with the first mounting block, and the head end of the swing plate is separated from the blocking block, and the indicator light is on; When in the second state, the swing plate separates from the first mounting block, and the head end of the swing plate separates from the blocking block, and the indicator light goes out; When in the third state, the swing plate is in contact with the first mounting block, and the head end of the swing plate is in contact with the blocking block, and the indicator light is off.

[0010] According to the technical solution provided in the embodiments of this application, a first switch is provided on the side surface of the swing plate near the first mounting block, a second switch is provided at the head end of the swing plate, a button battery is provided inside the swing plate, the circuit between the button battery, the first switch and the indicator light is connected in series, and the second switch is connected in parallel with the indicator light.

[0011] According to the technical solution provided in the embodiments of this application, a first bearing seat is installed on the end of the first mounting block away from the second mounting block, a second bearing seat is installed on the tail end of the swing plate, a hinge shaft is installed between the first bearing seat and the second bearing seat, a torsion spring is fitted on the hinge shaft, one end of the torsion spring is connected to the tail end of the swing plate, and the other end is connected to the first mounting block.

[0012] According to the technical solution provided in the embodiments of this application, the first mounting block and the second mounting block are each provided with a first through hole extending in the first direction in the middle.

[0013] According to the technical solution provided in the embodiments of this application, the bottom end of the base plate is provided with two bottom beams arranged in a first direction, and the extension direction of the two bottom beams is a second direction.

[0014] According to the technical solution provided in the embodiments of this application, the air intake includes an installation cylinder installed on the top and bottom of the side plate, a fan is installed inside the installation cylinder, and a filter screen is provided at the opening of the installation cylinder connecting to the outside.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This utility model is a combination of multiple cabinets assembled by splicing steel frame and outer cover plate. Side plates are installed at both ends to realize the function of the whole electrical cabinet. In this assembly method, two air intakes are set to realize the flow of air and play the purpose of initial heat dissipation. Furthermore, a first baffle plate, a heat exchange plate and a second baffle plate are set. The air intake blows the outside airflow to the first baffle plate, the first baffle plate blows the airflow to the heat exchange plate, and then guides the airflow to the second baffle plate through the heat exchange plate to realize multi-directional airflow. The second baffle is installed on the front panel near the air inlet, thus guiding the airflow towards the back panel. Since electrical components are usually installed on the back panel, the airflow can effectively guide and dissipate heat from the components. In addition, the airflow after dissipating heat from the components will pass through the first baffle and blow onto the heat exchange plate. The heat exchange plate is connected to the top or bottom plate, which improves the heat exchange effect and reduces the airflow temperature. This ensures that the airflow can continue to exchange heat and cool down, avoiding poor heat dissipation at the air outlet due to the excessive length of the electrical cabinet.

[0016] Furthermore, a positioning mechanism is installed on the front panel. When the steel frame is transported by forklift, the indicator light remains on initially for front-to-back positioning. If the indicator light goes out, the positioning is too far back. In the middle stage, the positioning is performed in the left-to-right direction. If the indicator light goes out, the positioning is complete. This achieves the purpose of guiding the positioning of the steel frame. Compared with the existing technology where the forklift driver operates the forklift and another person observes the position of the steel frame and the two work together for positioning, this application only requires the forklift driver to watch the indicator light to determine whether the positioning is complete. This reduces labor costs, improves positioning efficiency, and thus improves installation efficiency, making installation faster and more convenient.

[0017] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0018] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A schematic diagram of the substation refined reactive power compensation device provided in the embodiments of this application; Figure 2 This is a structural schematic diagram of the steel frame and outer cladding in an embodiment of this application; Figure 3 This is a schematic diagram of the installation structure of the swing plate in an embodiment of this application; Figure 4 This is a schematic diagram of the circuit connection of the indicator light in the embodiment of this application; Figure 5 for Figure 1 A magnified schematic diagram of a portion of region A in the middle; Figure 6 A cross-sectional structural schematic diagram of the refined reactive power compensation device provided in the embodiments of this application; Figure 7 for Figure 6 A magnified schematic diagram of a portion of region B in the middle; Figure 8 This is a schematic diagram of the installation structure of the extended threaded plate in an embodiment of this application.

[0019] Numbering on the map: 1. Outer panel; 11. Bottom panel; 12. Front panel; 13. Top panel; 14. Back panel; 2. Steel frame; 21. Rear column; 22. Front column; 23. Top frame; 24. Bottom frame; 25. Bottom beam; 3. Side panels; 4. Positioning mechanism; 41. First mounting block; 42. Second mounting block; 43. Swing plate; 44. First bearing seat; 45. Second bearing seat; 46. Hinge shaft; 47. Torsion spring; 48. Indicator light; 49. First switch; 410. Button battery; 411. Second switch; 412. Stop block; 413. First through hole; 5. Heat dissipation mechanism; 51. Mounting cylinder; 52. Fan; 53. Filter screen; 54. First baffle plate; 55. Heat exchange plate; 56. Second baffle plate; 57. Mounting through hole; 58. Extended threaded plate; 59. Mounting stud; 510. Clearance groove; 511. Mounting nut; 512. Third mounting block; 513. Baffle plate; 6. Back connection assembly; 61. Connecting block; 62. Second through hole. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0021] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Please refer to Figures 1-8 The present invention provides a refined reactive power compensation device for substations, comprising: Several steel frames 2 are arranged along a first direction, and side plates 3 are installed at the mutually distant ends of the steel frames 2 at both ends along the first direction; wherein, the first square is Figure 1 The left and right squares in the middle; The outer cladding panel 1 includes a top panel 13 installed on the top surface of the steel frame 2, a bottom panel 11 installed on the bottom surface of the steel frame 2, a front panel 12 installed on the front end surface of the steel frame 2, and a back panel 14 installed on the rear end surface of the steel frame 2; (See reference) Figure 2 The steel frame 2 consists of a rectangular top frame 23 and a bottom frame 24 as its main parts. The corners of the top frame 23 and the bottom frame 24 are provided with columns, specifically including two front columns 22 for installing the front panel 12 and two rear columns 21 for installing the back panel 14. The installation method of the outer cover 1 is the existing technology. Common installation methods include welding and drilling bolts. The specific operation of the installation method will not be described here. The heat dissipation mechanism 5 includes two air-guiding sections respectively disposed on two side plates 3. The air flow direction of the two air-guiding sections is the same, and they are marked as air inlet and air outlet respectively. Heat exchange plates 55 are provided on the top surface of the bottom plate 11 and the bottom surface of the top plate 13 near the air inlet. A first baffle plate 54 is provided at the end of the back plate 14 near the air outlet. A second baffle plate 56 is provided at the end of the front plate 12 near the air inlet. The first baffle plate 54 and the second baffle plate 56 are inclined in the first direction towards the air outlet, and they are located on both sides of the heat exchange plate 55 respectively.

[0023] like Figure 1 As shown, the air intake section at the air inlet sends airflow from the outside into the interior of the overall steel frame 2, while the air outlet section sends the airflow out of the interior of the overall steel frame 2, forming a preliminary gas flow and achieving the purpose of preliminary heat dissipation. Optionally, the air intake section includes mounting cylinders 51 installed on the top and bottom of the side plate 3. A fan 52 is installed inside the mounting cylinder 51, and a filter screen 53 is provided at the opening of the mounting cylinder 51 connecting to the outside. The filter screen 53 prevents external dust from entering the interior of the overall steel frame 2.

[0024] Further, refer to Figure 1 , Figure 2 and Figure 6 As shown, when gas enters the interior of the integral steel frame 2 from the air inlet (right end), it is blocked by the heat exchange plate 55 and guided to the second baffle plate 56. The second baffle plate 56 guides the airflow to blow towards the back plate 14. Since electrical components are usually mounted on the back plate 14, the airflow can effectively guide and dissipate heat from the electrical components. After heat exchange, the slightly warmer airflow will be blown to the next heat exchange plate 55 of the steel frame 2 under the action of the first baffle plate 54. The heat exchange plate 55 is connected to the top plate 13 or the bottom plate 11. The heat exchange effect is improved by the top plate 13 and the bottom plate 11, which reduces the airflow temperature. The purpose of this is to guide the airflow to the second baffle plate 56 and then blow it back onto the back plate 14, thereby maintaining the heat exchange and cooling of the airflow and avoiding poor heat dissipation at the air outlet due to the excessive length of the electrical cabinet. Optionally, a baffle plate 513 is provided on the inner side of the side plate 3. The baffle plate 513 is located on the side of the heat exchange plate 55 away from the second baffle plate 56. This can guide most of the gas flow to the second baffle plate 56, so that the gas flows stably along the path. Further, optionally, the heat exchange plate 55, the top plate 13 and the bottom plate 11 are all made of materials with high thermal conductivity to improve heat dissipation efficiency.

[0025] In some embodiments, the rear end faces of adjacent steel frames 2 are provided with back connection components 6. The back connection components 6 include connecting blocks 61 located at adjacent rear end faces of the two steel frames 2, and a second through hole 62 is provided between the connecting blocks 61, the steel frames 2, and the back plate 14. (Reference) Figure 6 and Figure 7 As shown, this method is the same as the conventional connection method. By inserting a long bolt into the second through hole 62 and then tightening it with a nut, the connecting block 61 is connected to the two steel frames 2 respectively, and finally the two steel frames 2 are stably connected by the connecting block 61.

[0026] In some embodiments, the heat dissipation mechanism 5 further includes a mounting portion disposed at one end of the connecting block 61, the mounting portion comprising: The third mounting block 512 is located at the end of the connecting block 61 near the air inlet end, and has a first inclined surface at the end away from the connecting block 61. The normal of the first inclined surface is perpendicular to the normal of the first baffle 54. The first inclined surface of the third mounting block 512 is provided with a mounting through hole 57 that penetrates the third mounting block 512 and the back plate 14. The mounting stud 59 is installed through the mounting through hole 57, with one end connected to the first baffle plate 54. The side surface of the mounting stud 59 is provided with several clearance grooves 510. The mounting through hole 57 is provided with an extension threaded plate 58 at the position corresponding to the clearance groove 510. The mounting stud 59 and the extension threaded plate 58 are externally threaded with a mounting nut 511.

[0027] like Figure 7 and Figure 8 As shown, the extended threaded plate 58 is arc-shaped, and the outer surface of the mounting through hole 57 at the extension is provided with corresponding threads. During installation, the mounting stud 59 is inserted into the mounting through hole 57 from inside the steel frame 2 and extends out from the other end. At this time, the extended threaded plate 58 is engaged in the clearance groove 510, which serves to limit the rotation of the mounting stud 59 and the first baffle plate 54. Furthermore, the mounting nut 511 is not only threadedly connected to the mounting stud 59, but also threadedly connected to the extended threaded plate 58, which achieves the fastening effect of the mounting stud 59 and prevents the axial movement of the mounting stud 59. Ultimately, this ensures the stability of the first baffle plate 54. The first baffle plate 54 can be installed after or before the installation of electrical components, depending on the requirements, to avoid mutual interference. Optionally, the second baffle plate 56 can also be installed using the structure of the mounting part.

[0028] In some embodiments, a positioning mechanism 4 is also installed on the front panel 12. The positioning mechanism 4 is used to assist in the positioning of the steel frame 2. The positioning mechanism 4 assists in positioning, thereby improving the efficiency of installation and positioning.

[0029] In some embodiments, the bottom end of the base plate 11 is provided with two bottom beams 25 arranged in a first direction, and the extending direction of the two bottom beams 25 is a second direction. (See reference) Figure 1 and Figure 2 The second direction is Figure 1 In the front and rear directions, the two bottom beams 25 serve two purposes: firstly, to increase the distance between the steel frame 2 and the ground, facilitating forklift transportation; and secondly, to prevent ground dampness and accidental water accumulation, reducing the possibility of damage to electrical appliances at the bottom of the electrical cabinet due to moisture.

[0030] In some embodiments, the positioning mechanism 4 includes: The second mounting block 42 is mounted on the right side of the front plate 12, and a blocking block 412 is provided in the middle of the front end face. The first mounting block 41 is mounted on the left side of the front plate 12. Its end away from the second mounting block 42 is hinged to the tail end of the swing plate 43 via a hinge shaft 46. The axis of the hinge shaft 46 extends in a vertical direction. The length of the swing plate 43 is greater than the length of the first mounting block 41. An indicator light 48 is provided on the end of the swing plate 43 away from the front plate 12. The swing plate 43 has a first state, a second state, and a third state; When in the first state, the swing plate 43 is in contact with the first mounting block 41, and the head end of the swing plate 43 is separated from the blocking block 412, and the indicator light 48 lights up. When in the second state, the swing plate 43 is separated from the first mounting block 41, and the head end of the swing plate 43 is separated from the blocking block 412, and the indicator light 48 is turned off. When in the third state, the swing plate 43 is in contact with the first mounting block 41, and the head end of the swing plate 43 is in contact with the blocking block 412, and the indicator light 48 is off.

[0031] refer to Figures 1 to 5 As shown, when the forklift is placing the steel frame 2, the swing plate 43 is in the first state and the indicator light 48 is lit. First, perform front and back positioning. After repeatedly adjusting the front and back position of the steel frame 2, in actual operation, the forklift lifts the steel frame 2 and moves it to the rear. At this time, if the swing plate 43 contacts the second mounting block 42 of another steel frame 2, the swing plate 43 will swing and tilt up, and the swing plate 43 will separate from the first mounting block 41. Switch the swing plate 43 to the second state. This state means that the steel frame 2 has moved too far backward. The forklift driver only needs to control the fork to move the steel frame 2 forward and stop when returning to the first state to complete the front and back positioning. Next, the forklift driver controls the forks to move the steel frame 2 to the left. When the first end of the swing plate 43 is in contact with the stop block 412, the swing plate 43 switches to the third state, the indicator light 48 goes out, and the forklift stops moving to the right, thus completing the left and right positioning.

[0032] The above positioning method only requires the forklift driver to observe the illumination and extinguishing of indicator light 48 to achieve positioning in the forward and backward and left and right directions. Compared with the existing technology where the forklift driver operates the forklift and another person observes the position of the steel frame 2 and the two cooperate to position, this application reduces personnel costs, improves positioning efficiency, and thus improves installation efficiency, making installation faster and more convenient.

[0033] In some embodiments, a first bearing seat 44 is mounted on the end of the first mounting block 41 away from the second mounting block 42, a second bearing seat 45 is mounted on the tail end of the swing plate 43, a hinge shaft 46 is mounted between the first bearing seat 44 and the second bearing seat 45, a torsion spring 47 is fitted on the outside of the hinge shaft 46, one end of the torsion spring 47 is connected to the tail end of the swing plate 43, and the other end is connected to the first mounting block 41.

[0034] refer to Figure 3 and Figure 5 As shown, the swing plate 43 is always in contact with the front end of the first mounting block 41 by the torsion spring 47, ensuring that the indicator light 48 is lit when not installed. Then, the forklift driver controls the fork to move the steel frame 2 forward, and the swing plate 43 can return to the first state.

[0035] In some embodiments, a first switch 49 is provided on the side surface of the swing plate 43 near the first mounting block 41, a second switch 411 is provided at the head end of the swing plate 43, a button battery 410 is provided inside the swing plate 43, the circuit between the button battery 410, the first switch 49 and the indicator light 48 is connected in series, and the second switch 411 is connected in parallel with the indicator light 48.

[0036] refer to Figure 3 , Figure 4 and Figure 5 As shown, the first switch 49 and the second switch 411 can be either push-button switches or photosensitive switches. Taking the push-button switch as an example, since the swing plate 43 is attached to the side surface of the first mounting block 41, the first switch 49 closes when pressed, and the circuit is connected, and the indicator light 48 lights up. Therefore, when the swing plate 43 is separated from the first mounting block 41, the first switch 49 opens, which will cause the indicator light 48 to turn off. The second switch 411 is located at the head end of the swing plate 43. It closes after contacting the stop block 412, short-circuiting the indicator light 48 and turning off the indicator light 48. The photosensitive switch, on the other hand, will close the circuit when it cannot sense light when it is attached or in contact, thus making the circuit connected.

[0037] In some embodiments, the first mounting block 41 and the second mounting block 42 are detachably mounted on the front plate 12 for easy disassembly after use. Optionally, screw holes or magnets are provided on the front plate 12, and corresponding bolts or magnets are installed on the first mounting block 41 to achieve a detachable form, which facilitates repeated use of the first mounting block 41 and the second mounting block 42.

[0038] In some embodiments, both the first mounting block 41 and the second mounting block 42 are provided with a first through hole 413 extending along a first direction at their center, such as... Figure 3 As shown, by inserting a long screw into the first through hole 413 and then tightening it with a nut threaded onto the other end, the first mounting block 41 of one steel frame 2 and the second mounting block 42 of another steel frame 2 can be connected, thus connecting the two steel frames 2. Optionally, a front connecting assembly is provided at the front end of the front plate 12, which has the same structure as the back connecting assembly 6, and serves to connect the two steel frames 2.

[0039] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A refined reactive power compensation device for substations, characterized in that, include: Several steel frames (2) are arranged along a first direction, and side plates (3) are installed at the far ends of the steel frames (2) at both ends along the first direction. The outer cladding (1) includes a top plate (13) installed on the top surface of the steel frame (2), a bottom plate (11) installed on the bottom surface of the steel frame (2), a front plate (12) installed on the front end surface of the steel frame (2), and a back plate (14) installed on the rear end surface of the steel frame (2). The heat dissipation mechanism (5) includes two air-guiding parts respectively provided on two side plates (3). The air flow direction of the two air-guiding parts is the same, and they are marked as air inlet and air outlet respectively. The top surface of the bottom plate (11) and the bottom surface of the top plate (13) are provided with heat exchange plates (55) near the air inlet. The back plate (14) is provided with a first baffle plate (54) near the air outlet. The front plate (12) is provided with a second baffle plate (56) near the air inlet. The first baffle plate (54) and the second baffle plate (56) are both inclined in the first direction towards the air outlet, and they are located on both sides of the heat exchange plate (55).

2. The substation refined reactive power compensation device according to claim 1, characterized in that, The rear end face of the adjacent steel frame (2) is provided with a back connection assembly (6), the back connection assembly (6) includes a connecting block (61) located at the adjacent rear end faces of the two steel frames (2), and a second through hole (62) is provided between the connecting block (61), the steel frame (2) and the back plate (14).

3. The substation refined reactive power compensation device according to claim 2, characterized in that, The heat dissipation mechanism (5) further includes a mounting portion disposed at one end of the connecting block (61), the mounting portion comprising: The third mounting block (512) is located at the end of the connecting block (61) near the air inlet end, and has a first inclined surface at the end away from the connecting block (61). The normal of the first inclined surface is perpendicular to the normal of the first baffle (54). The first inclined surface of the third mounting block (512) has a mounting through hole (57) that penetrates the third mounting block (512) and the back plate (14). A mounting stud (59) is installed through the mounting through hole (57) and one end is connected to the first baffle plate (54). The side surface of the mounting stud (59) is provided with several clearance grooves (510). An extension threaded plate (58) is provided inside the mounting through hole (57) at the position corresponding to the clearance groove (510). The mounting stud (59) and the extension threaded plate (58) are externally threaded with a mounting nut (511).

4. The substation refined reactive power compensation device according to claim 1, characterized in that, The front plate (12) is also equipped with a positioning mechanism (4), which is used to assist in the positioning and placement of the steel frame (2).

5. The substation refined reactive power compensation device according to claim 4, characterized in that, The positioning mechanism (4) includes: The second mounting block (42) is installed on the right side of the front plate (12), and a blocking block (412) is provided in the middle of the front end face. The first mounting block (41) is mounted on the left side of the front plate (12). Its end away from the second mounting block (42) is hinged to the tail end of the swing plate (43) via a hinge shaft (46). The axis of the hinge shaft (46) extends in a vertical direction. The length of the swing plate (43) is greater than the length of the first mounting block (41). An indicator light (48) is provided on the end of the swing plate (43) away from the front plate (12). The swing plate (43) has a first state, a second state and a third state; When in the first state, the swing plate (43) is attached to the first mounting block (41), and the head end of the swing plate (43) is separated from the blocking block (412), and the indicator light (48) lights up; When in the second state, the swing plate (43) is separated from the first mounting block (41), and the head end of the swing plate (43) is separated from the blocking block (412), and the indicator light (48) is turned off; When in the third state, the swing plate (43) is in contact with the first mounting block (41), and the head end of the swing plate (43) is in contact with the blocking block (412), and the indicator light (48) is off.

6. The substation refined reactive power compensation device according to claim 5, characterized in that, The swing plate (43) has a first switch (49) on its side surface near the first mounting block (41), and a second switch (411) is provided at the head end of the swing plate (43). A button battery (410) is provided inside the swing plate (43). The circuit between the button battery (410), the first switch (49) and the indicator light (48) is connected in series, and the second switch (411) is connected in parallel with the indicator light (48).

7. The substation refined reactive power compensation device according to claim 5, characterized in that, A first bearing seat (44) is installed on the end of the first mounting block (41) away from the second mounting block (42), and a second bearing seat (45) is installed on the tail end of the swing plate (43). The hinge shaft (46) is installed between the first bearing seat (44) and the second bearing seat (45). A torsion spring (47) is fitted on the outside of the hinge shaft (46). One end of the torsion spring (47) is connected to the tail end of the swing plate (43), and the other end is connected to the first mounting block (41).

8. The substation refined reactive power compensation device according to claim 5, characterized in that, The first mounting block (41) and the second mounting block (42) are each provided with a first through hole (413) extending in the first direction.

9. The substation refined reactive power compensation device according to claim 1, characterized in that, The bottom end of the base plate (11) is provided with two bottom beams (25) arranged in a first direction, and the extension direction of the two bottom beams (25) is a second direction.

10. The substation refined reactive power compensation device according to claim 1, characterized in that, The air intake includes an installation cylinder (51) installed on the top and bottom of the side plate (3). A fan (52) is installed inside the installation cylinder (51), and a filter screen (53) is provided at the opening of the installation cylinder (51) connecting to the outside.

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