CN220358540U - Air-cooled high-voltage dynamic reactive power compensation device and module unit thereof - Google Patents

Abstract

The utility model discloses an air-cooled high-voltage dynamic reactive power compensation device and a module unit thereof, wherein the air-cooled high-voltage dynamic reactive power compensation device comprises an insulating plate and two side panels which are arranged in parallel; the side panel is provided with a lower clamping assembly and an upper clamping assembly which are protruded towards opposite sides, the lower clamping assembly and the upper clamping assembly are arranged in a staggered mode, and a first height difference matched with the thickness of the insulating plate is arranged between the lower clamping assembly and the upper clamping assembly; the left side and the right side of insulation board install respectively between the last chucking subassembly of two side boards and lower chucking subassembly. According to the utility model, the upper clamping assemblies and the lower clamping assemblies which are arranged in a staggered way are arranged, so that the mounting and clamping of the insulating plate are realized, and the technical problems of difficult manufacture, reduced service life and the like caused by the fact that the upper clamping assemblies and the lower clamping assemblies are too close in distance due to the arrangement of the upper clamping assemblies and the lower clamping assemblies in parallel are avoided; and the structure is simple, the installation is convenient, and the installation period is effectively shortened.

Description

Air-cooled high-voltage dynamic reactive power compensation device and module unit thereof

Technical Field

The utility model relates to the technical field of high-voltage dynamic reactive power compensation, in particular to an air-cooled high-voltage dynamic reactive power compensation device and a module unit thereof.

Background

With the increase of the market demand of the high-voltage dynamic reactive power compensation device year by year in the years, the air-cooled high-voltage dynamic reactive power compensation device occupies more than half of the market share by virtue of lower economic cost.

Because the air-cooled high-voltage dynamic reactive compensation device is composed of a plurality of module units, each module unit needs to separate a control device from the thin film capacitor by an insulating plate in order to prevent electromagnetic radiation interference and unsafe electric gaps of the thin film capacitor. And the insulating plates need to be fixed to the side plates and the front panel due to the material characteristics and space saving requirements. Special structures are required to be made between the side plates and the front plate for mounting the insulating plates. The patent with the publication number of CN 213367112U discloses a low-voltage hidden capacitance compensation cabinet, which comprises a cabinet body, an insulating plate, a cabinet door and an air box, wherein one side of the cabinet body is provided with a groove, a bolt rod is arranged on the groove, a roller wheel is arranged on the bolt rod, one side of the roller wheel is provided with the insulating plate, and a toothed bar matched with the roller wheel for use is arranged on the insulating plate. The insulating plate has the advantages of multiple parts, complex structure, complex installation of the insulating plate and long installation period.

Based on this, the prior art still remains to be improved.

Disclosure of Invention

In order to solve the technical problems, the embodiment of the utility model provides an air-cooled high-voltage dynamic reactive power compensation device and a module unit thereof, which are used for solving the technical problems of complex structure and long installation period in the prior art.

In order to solve the technical problems, on one hand, some embodiments of the present utility model disclose a module unit of an air-cooled high-voltage dynamic reactive power compensation device, which comprises an insulating plate and two side panels arranged in parallel; the side panel is provided with a lower clamping assembly and an upper clamping assembly which are protruded towards opposite sides, the lower clamping assembly and the upper clamping assembly are arranged in a staggered mode, and a first height difference matched with the thickness of the insulating plate is arranged between the lower clamping assembly and the upper clamping assembly;

the left side and the right side of insulation board install respectively between the last chucking subassembly of two side boards and lower chucking subassembly.

In some embodiments, the front panel and the rear panel are further included, an upper clamping strip and a lower clamping strip which are arranged up and down are arranged on the front panel, and a front clamping groove is formed between the upper clamping strip and the lower clamping strip;

the front side of the insulating plate is provided with a clamping eave which is clamped in the clamping groove.

In some embodiments, the upper clamping assembly comprises a central clamping block and an edge clamping block which are positioned on the first horizontal line, the central clamping block is positioned at the midpoint of the length direction of the side panel, and the edge clamping blocks are at the same height as the central clamping block and are arranged at intervals;

the middle parts of the left side edge and the right side edge of the insulating plate are respectively provided with a notch which is matched with the central clamping block in size.

In some embodiments, the lower clamping assembly includes a first support block and a second support block positioned at a second horizontal line, the first support block and the second support block being disposed between the center clamping block and the edge clamping block in a length direction of the side panel;

and the second horizontal line is lower than the first horizontal line and has a first height difference.

In some embodiments, the edge clamping blocks are two and are symmetrically arranged relative to the midpoint of the length direction of the side panel;

the first support blocks are two, are symmetrically arranged relative to the middle point of the length direction of the side panel, and the second support blocks are two, are symmetrically arranged relative to the middle point of the length direction of the side panel.

In some embodiments, the device further comprises a supporting insulator, an absorbing capacitor and a capacitor pad, wherein two ends of the capacitor pad are respectively fixed on the two side panels and lower than the lower clamping assembly;

the lower end of the supporting insulator is arranged on the capacitor backing plate through threads;

the absorption capacitor is arranged on the capacitor backing plate.

In some embodiments, the support insulator comprises an insulation column, an embedded screw rod and an embedded turnbuckle, wherein the embedded screw rod extends out from the lower end of the insulation column, and the embedded turnbuckle is arranged at the upper end of the insulation column;

the insulating plate is provided with mounting holes corresponding to the positions of the embedded turnbuckles, and the insulating plate and the embedded turnbuckles are fixedly connected through bolts;

and, the insulating column lower part sets up to outer hexagonal structure.

In some embodiments, the rear side of the insulating plate is provided with a groove matched with the absorption capacitor;

the rear side of the insulating plate is lapped on the capacitor backing plate, and the absorption capacitor is positioned in the groove.

In some embodiments, the upper and lower clamping assemblies are stamped from a stamping die.

On the other hand, the embodiment of the utility model also discloses an air-cooled high-voltage dynamic reactive power compensation device which comprises the module unit.

By adopting the technical scheme, the utility model has at least the following beneficial effects:

according to the air-cooled high-voltage dynamic reactive power compensation device and the module unit thereof, through arranging the upper clamping assemblies and the lower clamping assemblies which are arranged in a staggered manner, the installation and clamping of the insulating plates are realized, the staggered arrangement mode is adopted, and the technical problems that the upper clamping assemblies and the lower clamping assemblies are too close in distance and the manufacturing is difficult, the service life is shortened and the like caused by the arrangement in parallel up and down are avoided; and the structure is simple, the installation is convenient, and the installation period is effectively shortened.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an assembly diagram of a modular unit of an air-cooled high-voltage dynamic reactive power compensation device according to some embodiments of the present utility model;

FIG. 2 is a front view of a side panel of a modular unit of an air-cooled high-voltage dynamic reactive power compensation device according to some embodiments of the present utility model;

FIG. 3 is a schematic view of a side panel of a module unit of an air-cooled high-voltage dynamic reactive power compensation device according to a comparative example of the present utility model;

FIG. 4 is a schematic diagram of a front panel of a modular unit of an air-cooled high-voltage dynamic reactive power compensation device according to some embodiments of the present utility model;

FIG. 5 is a schematic diagram of an insulating plate of a module unit of an air-cooled high-voltage dynamic reactive power compensation device according to some embodiments of the utility model;

FIG. 6 is a schematic diagram of a capacitive pad of a modular unit of an air-cooled high-voltage dynamic reactive power compensation device according to some embodiments of the present utility model;

FIG. 7 is a schematic diagram of a supporting insulator of a module unit of an air-cooled high-voltage dynamic reactive power compensation device according to some embodiments of the utility model;

fig. 8a, 8b and 8c are schematic views illustrating installation of insulating plates of a module unit of an air-cooled high-voltage dynamic reactive power compensation device according to some embodiments of the utility model.

Reference numerals illustrate:

1. an insulating plate; 11. a notch; 12. a mounting hole; 13. a groove; 14. interference notch;

2. a side panel; 31. a first support block; 32. a second support block; 41. a center clamping block; 42. an edge clamping block;

5. a front panel; 51. the upper clamping strip; 52. a lower fastener strip; 53. a front clamping groove;

6. a rear panel;

7. a support insulator; 71. an insulating column; 72. embedding bolt rods; 73. pre-burying a turnbuckle; 74. an outer hexagonal structure;

8. an absorption capacitance;

9. a capacitor backing plate; 91. a threaded hole;

10. and a control device.

Detailed Description

Embodiments of the present disclosure are described in further detail below with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the disclosure and not to limit the scope of the disclosure, which may be embodied in many different forms and not limited to the specific embodiments disclosed herein, but rather to include all technical solutions falling within the scope of the claims.

The present disclosure provides these embodiments in order to make the present disclosure thorough and complete, and fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only and not limiting unless otherwise specifically stated.

In the description of the present disclosure, unless otherwise indicated, the meaning of "plurality" is greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like indicate an orientation or positional relationship merely for convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present disclosure. When the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.

Furthermore, the use of the terms first, second, and the like in this disclosure do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The "vertical" is not strictly vertical but is within the allowable error range. "parallel" is not strictly parallel but is within the tolerance of the error. The word "comprising" or "comprises" and the like means that elements preceding the word encompass the elements recited after the word, and not exclude the possibility of also encompassing other elements.

It should also be noted that, in the description of the present disclosure, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the present disclosure may be understood as appropriate by those of ordinary skill in the art. When a particular device is described as being located between a first device and a second device, there may or may not be an intervening device between the particular device and either the first device or the second device.

All terms used in the present disclosure have the same meaning as understood by one of ordinary skill in the art to which the present disclosure pertains, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification.

As shown in fig. 1 to 8c, some embodiments of the present utility model disclose an air-cooled high-voltage dynamic reactive power compensation device and a module unit thereof, which solve the technical problems of complexity and complexity of the side plate, the front panel 5 and the insulating plate 1 of the existing module unit, so that a clamping mode with inconvenient processing becomes easy to process; the cost can be saved, and the installation is convenient; the working period is obviously shortened. Comprising an insulating plate 1 and two side panels 2 arranged in parallel; the side panel 2 is provided with a lower clamping assembly and an upper clamping assembly which are protruded towards opposite sides, the lower clamping assembly and the upper clamping assembly are arranged in a staggered manner, and a first height difference matched with the thickness of the insulating plate 1 is arranged between the lower clamping assembly and the upper clamping assembly; the left and right sides of the insulating plate 1 are respectively installed between the upper and lower clamping assemblies of the two side panels 2.

During the use, insert the chucking subassembly with two sides of insulation board 1 between the chucking subassembly under with, realize fixed mounting, the installation is simple, through the first difference in height between chucking subassembly and the chucking subassembly down on the control, makes it can realize best adaptation with the thickness of insulation board 1, simultaneously, combines the fixed of other positions, realizes fixing insulation board 1 steadily. The upper clamping assemblies and the lower clamping assemblies are arranged in a staggered mode, rather than an up-down arrangement mode, so that the cost of an expensive stamping mould is saved, and the installation time is saved.

Specifically, if the upper clamping assembly and the lower clamping assembly are arranged up and down as shown in fig. 3, the punching mold is not easy to manufacture due to the extremely small spacing of 12.15mm between the insulating plates during punching. And not single rinse. And because of the existence of errors, the upper and lower spacing of the stamping mould is 2.15mm plus or minus 0.5mm. A pitch less than 2.1mm affects the mounting of the insulating plate 1. After the insulating plate 1 with the distance larger than 2.2mm is in place, the service life of the control device 10 on the insulating plate 1 can be prolonged due to the fact that the vibration amplitude of the insulating plate 1 is too large due to the influence of equipment. Therefore, the up-and-down arrangement of the tool means requires too high a stamping tool, which is expensive. In the embodiment, as shown in fig. 2, the layout mode of staggered arrangement is adopted, and the situation that the distance between two parts is smaller does not exist in the layout mode, so that no special requirement is imposed on a stamping mould, the stamping manufacturing difficulty is greatly reduced, and the cost is greatly reduced. Moreover, the upper clamping assemblies and the lower clamping assemblies which are arranged in a staggered manner are matched with the toughness of the insulating plate 1, and the height difference between the upper clamping assemblies and the lower clamping assemblies can be consistent with the thickness of the insulating plate 1 or slightly smaller, so that the insulating plate 1 can be clamped in a most suitable manner.

In order to further improve the stability of the insulating board 1, the air-cooled high-voltage dynamic reactive power compensation device and the module unit thereof disclosed in some embodiments of the present utility model further include, as shown in fig. 1 and 4, a front panel 5 and a rear panel 6, wherein an upper clamping strip 51 and a lower clamping strip 52 are disposed on the front panel 5, and a front clamping groove 53 is formed between the upper clamping strip 51 and the lower clamping strip 52; the front side of the insulating board 1 is provided with a clamping eave which is clamped in the clamping groove. When the clamping device is used, the insulating plate 1 is pushed forward from back to front, the left side edge and the right side edge are limited by the upper clamping assembly and the lower clamping assembly, the front side edge of the insulating plate 1 is finally clamped by the clamping grooves, and the insulating plate 1 is fixed from three directions. The clamping groove can be arranged such that the groove width gradually decreases along with the depth, or the groove width is equal to or slightly larger than the clamping eave, so that the clamping stability is better.

The air-cooled high-voltage dynamic reactive power compensation device and the module unit thereof disclosed in some embodiments of the present utility model, based on the above embodiments, as shown in fig. 1, 3 and 5, the upper clamping assembly may include a central clamping block 41 and an edge clamping block 42 located on a first horizontal line, the central clamping block 41 is located at a midpoint in the length direction of the side panel 2, and the edge clamping blocks 42 and the central clamping block 41 are arranged at equal heights and at intervals; the middle parts of the left side edge and the right side edge of the insulating plate 1 are respectively provided with a notch 11 which is matched with the central clamping block 41 in size. In cooperation therewith, the lower clamping assembly may comprise a first and a second support block 31, 32 located at a second level, the first and second support blocks 31, 32 being arranged between the central clamping block 41 and the edge clamping block 42 in the length direction of the side panel 2; and the second horizontal line is lower than the first horizontal line and has a first height difference. During preparation, the upper clamping assembly and the lower clamping assembly are formed by stamping through a stamping jig, and the central clamping block 41, the edge clamping block 42, the first supporting block 31 and the second supporting block 32 can be formed by stamping through the stamping jig.

When the module frame is installed, the front panel 5, the rear panel 6 and the two side panels 2 are installed and fixed, the insulating plate 1 is placed from the upper part, the notch 11 faces downwards towards the center clamping block 41 until the lower end of the insulating plate 1 is positioned on the first supporting block 31 and the second supporting block 32, then the insulating plate 1 is pushed towards the front panel 5 until the clamping eave of the front end of the insulating plate 1 is clamped in the clamping groove, and the initial installation of the insulating plate 1 is completed. Generally, since the front panel 5 has the columns on both sides, the interference notches 14 may be provided at both ends of the front side of the insulating plate 1, respectively, so that the clamping eave can be completely clamped in the clamping groove.

According to the air-cooled high-voltage dynamic reactive power compensation device and the module unit thereof disclosed by some embodiments of the utility model, on the basis of the embodiments, the side panels 2 are symmetrical relative to the center of the length direction, the structures of the two side panels 2 are identical, and the two side panels 2 can be mutually replaced, namely, no positive and negative direction division is needed, so that the side panels 2 do not need to be distinguished during installation, the adaptability is better during use, and part of cost is saved. If there is a positive and negative division of side panels 2, there will be a total of 10 side panels if there are 6 left side panels 4 right side panels in inventory. In this case, 5 module units are assembled, and a right side plate is manufactured. Without the side plates of the opposite hand. A total of 10 side panels can be directly taken to assemble 5 modular units. This utility model saves time in preparing the material side plate direction and saves the cost of necessary symmetrical materials.

Specifically, in the structure of the present embodiment, as shown in fig. 1 and 2, the edge gripping blocks 42 are two and symmetrically arranged with respect to the midpoint in the length direction of the side panel 2; the first support blocks 31 are two and are symmetrically arranged relative to the midpoint of the side panel 2 in the length direction, and the second support blocks 32 are two and are symmetrically arranged relative to the midpoint of the side panel 2 in the length direction. After the installation is completed, the edge clamping block 42, the first support block 31 and the second support block 32 on the side where the insulating plate 1 is not installed are left idle.

The utility model discloses an air-cooled high-voltage dynamic reactive power compensation device and a module unit thereof, which are disclosed by some embodiments, and further comprise a supporting insulator 7, an absorption capacitor 8 and a capacitor backing plate 9, wherein two ends of the capacitor backing plate 9 are respectively fixed on two side panels 2 and lower than the height of a lower clamping assembly; the lower end of the supporting insulator 7 is arranged in the internal threaded hole 91 of the capacitor backing plate 9 through threads; the absorptive capacitance 8 is mounted on a capacitive pad 9. Adaptively, the rear side of the insulating plate 1 is provided with a groove 13 adapted to the absorption capacitor 8; the rear side of the insulating plate 1 is lapped on the capacitor backing plate 9, and the absorption capacitor 8 is positioned in the groove 13.

For easy installation, the supporting insulator 7 may include an insulation column 71, an embedded turnbuckle 72 and an embedded turnbuckle 73, wherein the embedded turnbuckle 72 extends from the lower end of the insulation column 71, and the embedded turnbuckle 73 is disposed at the upper end of the insulation column 71; the insulating plate 1 is provided with mounting holes 12 corresponding to the positions of the embedded turnbuckles 73, the embedded turnbuckles 72 are fixedly connected with threaded holes 91 on the capacitor backing plate 9, and the insulating plate 1 and the embedded turnbuckles 73 are fixedly connected through bolts; and, the lower portion of the insulating column 71 is provided with an outer hexagonal structure 74. The rear side of the insulating plate 1 is further fixed by the support insulator 7, and the stability of installation is ensured.

In the above embodiment of the present utility model, the side panel 2 may be made of an aluminum-zinc-coated plate. The aluminum-zinc-coated plate is a very common alloy material, and comprises the components of the aluminum-zinc-coated plate, wherein the surface of the aluminum-zinc-coated plate is special smooth, flat and gorgeous star-shaped flower, and the primary color is silvery white. A thin and compact basic zinc carbonate film is generated on the surface of the special coating structure, and the basic zinc carbonate film plays a role in protecting a barrier, so that the basic zinc carbonate film has excellent corrosion resistance. The heat resistance is good.

The front panel 5, the rear panel 6 and the capacitor pad 9 may be made of SMC molded board. SMC molded boards are sheet-like articles formed from unsaturated polyester glass fiber sheet plastic (SMC) by film pressing. The product has the characteristics of higher mechanical strength, good flame retardance, good leakage resistance, arc resistance, high dielectric strength and voltage resistance, low water absorption, stable dimensional tolerance, small warping degree and the like.

The thickness of the insulating plate 1 is typically 2mm. The bakelite board, also called phenolic laminated board, is produced by using bleached wood laminated paper and cotton linter paper with excellent quality as reinforcements and phenolic resin prepared by reacting high-purity and fully-synthesized petrochemical raw materials as a resin binder. The antistatic coating has antistatic property and good electrical insulation performance. The insulating material is suitable for being used as an insulating structure part in motors and electrical equipment with high mechanical property requirements.

The supporting insulator 7 can be made of various main and auxiliary materials such as DMC unsaturated polyester resin, glass fiber, filler pigment auxiliary agent and the like which are commonly used, and is formed by high-temperature pressing. The insulating material has the characteristics of good insulating property, no fracture at low temperature, no deformation at high temperature, small volume, firmness, durability and the like.

The snubber capacitor 8 is used in a circuit to function like a low pass filter and to absorb spike voltages. The method is generally used for Insulated Gate Bipolar Transistors (IGBT), so that peak voltage caused by stray inductance of the busbar is eliminated, and damage to the insulated gate bipolar transistors is avoided. Because the structure and the electrical connection are conventional in the prior art, detailed description thereof is omitted.

The air-cooled high-voltage dynamic reactive power compensation device and the module unit thereof disclosed by some embodiments of the utility model are installed in the following manner:

the module frame is mounted, as shown in fig. 1, by fixing the front panel 5, the rear panel 6, the side panels 2 and the capacitor pad 9 by screws.

The support insulator 7 is mounted to the support insulator 7 mounting hole 12 on the capacitor plate 9, and the capacitor plate 9 side is secured using a suitable wrench.

The insulating plate 1 is taken horizontally right above the module frame and the insulating plate 1 and the front panel 5 interfere with the notch 14 towards the front panel 5 as shown in fig. 8 a.

The openings 11 on both sides of the insulating plate 1 are aligned with the central clamping blocks 41 of the side plates 2 of the module unit in the middle of the side plates, the insulating plate 1 is vertically downward, and the openings 11 on both sides of the insulating plate 1 pass through the central clamping blocks 41 in the middle of the side plates, so that the insulating plate 1 is placed on the first supporting block 31 and the second supporting block 32, as shown in fig. 8b and 8 c.

The insulating plate 1 is horizontally inserted into the clamping groove of the front panel 5 of the module unit along the side panel 2 of the module unit by the clamping eave of the insulating plate 1. And the insulating plate 1 and the front panel 5 are in interference with the notch 14 to be propped against the upright posts on the two sides of the front panel 5. As shown in fig. 8b,8 c.

The absorption capacitor 8 is arranged at the absorption capacitor notch (groove 13) of the insulating plate 1 and fixed by a screw.

The mounting holes 12 on the insulating plate 1 are fixedly connected with the embedded turnbuckles 73 of the supporting insulator 7 through threads.

The insulating plate 1 structure is installed in the module unit.

Thus, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the disclosure. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict.

Claims (10)

1. The module unit of the air-cooled high-voltage dynamic reactive power compensation device is characterized by comprising an insulating plate (1) and two side panels (2) which are arranged in parallel; the side panel (2) is provided with a lower clamping assembly and an upper clamping assembly which are protruded towards opposite sides, the lower clamping assembly and the upper clamping assembly are arranged in a staggered mode, and a first height difference matched with the thickness of the insulating plate (1) is arranged between the lower clamping assembly and the upper clamping assembly;

the left side edge and the right side edge of the insulating plate (1) are respectively arranged between the upper clamping assembly and the lower clamping assembly of the two side panels (2).

2. The modular unit of an air-cooled high-voltage dynamic reactive power compensation device according to claim 1, characterized in that it further comprises a front panel (5) and a rear panel (6), said front panel (5) being provided with an upper clamping strip (51) and a lower clamping strip (52) arranged one above the other, a front clamping groove (53) being formed between said upper clamping strip (51) and said lower clamping strip (52);

the front side of the insulating plate (1) is provided with a clamping eave, and the clamping eave is clamped in the clamping groove.

3. The modular unit of an air-cooled high-voltage dynamic reactive power compensation device according to claim 1 or 2, characterized in that said upper clamping assembly comprises a central clamping block (41) and an edge clamping block (42) positioned on a first horizontal line, said central clamping block (41) being positioned at a midpoint in the length direction of said side panel (2), said edge clamping block (42) being arranged at equal height and spaced apart from said central clamping block (41);

the middle parts of the left side edge and the right side edge of the insulating plate (1) are respectively provided with a notch (11) which is matched with the central clamping block (41) in size.

4. A modular unit of an air-cooled high-voltage dynamic reactive power compensation device according to claim 3, characterized in that the lower clamping assembly comprises a first (31) and a second (32) bearing block located at a second level, the first (31) and second (32) bearing blocks being arranged between the central clamping block (41) and the edge clamping block (42) in the length direction of the side panel (2);

and, the second horizontal line is lower than the first horizontal line and both have a first height difference.

5. The modular unit of an air-cooled high-voltage dynamic reactive power compensation device according to claim 4, characterized in that said edge gripping blocks (42) are two and are symmetrically arranged with respect to the midpoint of the length direction of said side panels (2);

the two first support blocks (31) are symmetrically arranged relative to the middle point of the length direction of the side panel (2), and the two second support blocks (32) are symmetrically arranged relative to the middle point of the length direction of the side panel (2).

6. The modular unit of an air-cooled high-voltage dynamic reactive power compensation device according to claim 1, characterized in that it further comprises a supporting insulator (7), an absorbing capacitor (8) and a capacitor pad (9), the two ends of the capacitor pad (9) being fixed on the two side panels (2) respectively and lower than the height of the lower clamping assembly;

the lower end of the supporting insulator (7) is arranged on the capacitor backing plate (9) through threads;

the absorption capacitor (8) is arranged on the capacitor backing plate (9).

7. The modular unit of an air-cooled high-voltage dynamic reactive power compensation device according to claim 6, characterized in that the supporting insulator (7) comprises an insulating column (71), an embedded turnbuckle (72) and an embedded turnbuckle (73), wherein the embedded turnbuckle (72) extends out from the lower end of the insulating column (71), and the embedded turnbuckle (73) is arranged at the upper end of the insulating column (71);

the insulating plate (1) is provided with mounting holes (12) corresponding to the positions of the embedded turnbuckles (73), and the insulating plate (1) and the embedded turnbuckles (73) are fixedly connected through bolts;

and, the lower part of the insulating column (71) is provided with an outer hexagonal structure (74).

8. The modular unit of an air-cooled high-voltage dynamic reactive power compensation device according to claim 6, characterized in that the rear side of the insulating plate (1) is provided with a groove (13) adapted to the absorption capacitance (8);

the rear side of the insulating plate (1) is lapped on the capacitor backing plate (9), and the absorption capacitor (8) is positioned in the groove (13).

9. The modular unit of an air-cooled high voltage dynamic reactive power compensator as recited in claim 1 wherein said upper clamping assembly and said lower clamping assembly are stamped by a stamping die.

10. An air-cooled high-voltage dynamic reactive power compensation device, characterized by comprising a modular unit according to any one of claims 1-9.