A reactive power compensation device for low voltage distribution network

Abstract

The present invention relates to the technical field of power distribution network, in particular to a reactive power compensation device for a low-voltage power distribution network, comprising a reactive power compensation device body, a cable connector, a power distribution device interface, a compensation control heat dissipation auxiliary mechanism and an auxiliary component; mainly through the coordinated use of the arranged compensation control heat dissipation auxiliary mechanism and the auxiliary component, the connection position of the cable connector and the power distribution device interface in the reactive power compensation device body is stabilized, and when the temperature is high, the connection position has a good heat dissipation auxiliary effect to avoid the influence of high temperature on the operation of the line, and has a tightening effect on the connection between the cable connector and the power distribution device interface, ensuring the stable operation of the line transmission operation; therefore, the present invention solves the problem that the reactive power compensation device lacks a matching line heat dissipation component in the prior art, so as to improve the working efficiency of the reactive power compensation device.

Description

Technical Field

[0001] The invention relates to the technical field of distribution network, in particular to a reactive power compensation device for a low-voltage distribution network. Background Art

[0002] The main function of the reactive power compensation device is, on the one hand, to improve the power factor; reactive power compensation can increase the proportion of active power in the power grid, reduce the power loss of equipment, and thus improve the power factor of the entire power supply system; secondly, stabilize the voltage; by controlling reactive power, the reactive power compensation device can stabilize the voltage and improve the power supply quality.

[0003] The existing Chinese patent document with announcement number CN217935100U discloses a three-phase unbalanced reactive power compensation device for a low-voltage distribution network. The device connects the power grid and the compensation device through a voltage constant voltage controller and a reactive power transient controller in a reactive power compensation control component, so that the voltage, current and temperature signals of the power grid are transmitted to the compensation device. The remote controller is used to remotely control the compensation device to compensate for the three-phase imbalance of the power grid, while the voltage constant voltage controller and the reactive power transient controller provide a stable power grid voltage and a stable reactive power compensation device state. And a Chinese patent document with announcement number CN112909963A discloses a distribution network and an Internet of Things distributed reactive power compensation system, which includes a distribution transformer, a power consumption end, a low-voltage distribution line, a reactive power compensation device and a cloud monitoring platform, and an intelligent capacitor group is arranged on the reactive power compensation device; by arranging a reactive power compensation device near the power consumption end where the power factor is less than the power factor threshold, local compensation is achieved in a multi-point manner, thereby improving the power factor of the low-voltage distribution line, reducing line loss, increasing the line power supply capacity, and improving the line end voltage qualification rate, and the distribution operation and maintenance personnel can set the operating parameters of the reactive power compensation device through the cloud monitoring platform to achieve control of the reactive power compensation device, and the distribution operation and maintenance personnel can timely find individual reactive power compensation devices with abnormal operation in a large number of operating reactive power compensation devices by analyzing the data of the cloud monitoring platform, so that the distribution operation and maintenance personnel can carry out maintenance and troubleshooting work in a timely and efficient manner, so that the Internet of Things distributed reactive power compensation system can operate normally in a good state.

[0004] The reactive power compensation device used in the power distribution system plays an important role. The monitoring platform only monitors the reactive power compensation device at the corresponding location. When problems occur, it is necessary to notify the corresponding maintenance personnel to go to the site for timely maintenance. The high workload of the reactive power compensation device often causes the internal temperature of its box to be in a high temperature state. Generally, heat dissipation slots are opened on the device shell; however, high temperature will generally accumulate at the connection position between the circuit cable and the power distribution device, especially where multiple cables are gathered and connected to the power distribution device, which has a negative impact on the normal operation of the reactive power compensation device, and thus affects the overall power distribution work.

[0005] Therefore, we need a reactive power compensation device for a low-voltage distribution network to solve the problem that the reactive power compensation device in the prior art mentioned above lacks a matching line heat dissipation component, so as to improve the working efficiency of the reactive power compensation device. Summary of the invention

[0006] The object of the present invention is to provide a reactive power compensation device for a low voltage distribution network, so as to solve the problem that the reactive power compensation device in the prior art lacks a corresponding line heat dissipation component, so as to improve the working efficiency of the reactive power compensation device.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a reactive compensation device for a low-voltage distribution network, comprising a reactive compensation device body, a cable connector, a distribution device interface, a compensation control heat dissipation auxiliary mechanism and an auxiliary component; a cable connector and a distribution device interface are connected and arranged in the reactive compensation device body, the cable connector and the distribution device interface are plug-connected, and the connection position of the cable connector and the distribution device interface is assisted in heat dissipation by a compensation control heat dissipation auxiliary mechanism, and the compensation control heat dissipation auxiliary mechanism is connected and arranged with the auxiliary component.

[0008] Preferably, the compensation control heat dissipation auxiliary mechanism includes a conveying pipe, an auxiliary branch pipe, a buffer baffle, a sealing cap, a connecting hose, an externally threaded connector, an internally threaded fastening cap, a rotating auxiliary protrusion, a carrier, a fan, a placement cavity, a coolant loading box, a feed port, a handle, an auxiliary through groove, and a positioning auxiliary frosted pad; the conveying pipe is arranged in the main body of the reactive power compensation device, one end of the conveying pipe is embedded and fixedly arranged on the side wall of the main body of the reactive power compensation device, and the conveying pipe is equidistantly fixed with auxiliary branches, the auxiliary branches are connected to the conveying pipe, and buffer baffles are equidistantly arranged on the inner side wall of the auxiliary branch, one end of the connecting hose is connected to the conveying pipe, and the other end of the connecting hose is fixedly provided with an externally threaded connector, the externally threaded connector is threadedly provided with an internally threaded fastening cap, and the internal The outer wall of the threaded fastening cap is equidistantly fixed with rotating auxiliary protrusions, the carrier is provided with a fixed side plate, the fixed side plate is fixedly connected to the side wall of the reactive compensation device body by screws, and the carrier and the conveying pipe are set at corresponding positions and the number of groups is the same, a placement cavity is provided in the carrier, a fan is connected to one end of the carrier, a coolant loading box body is adapted and plugged in the placement cavity, a handle is fixedly provided on the top of the coolant loading box body, and a feed port is provided on the side wall of the coolant loading box body, auxiliary through grooves are equidistantly provided on both sides of the coolant loading box body, the positioning auxiliary frosted pad is connected to the side wall of the coolant loading box body, and the positioning auxiliary frosted pad is set at the handle position close to the end of the coolant loading box body; the internal thread fastening cap is connected to the auxiliary component.

[0009] Preferably, the buffer baffles are arranged in two rows at equal distances on the inner side wall of the auxiliary branch pipe, and the buffer baffles in the two rows are staggered.

[0010] Preferably, the placement cavity groove corresponds to the setting position of the pipe mouth of the conveying pipe, is set in the same group, and is connected to each other.

[0011] Preferably, the auxiliary through grooves are equidistantly arranged on the side wall of the coolant loading box body to form a ventilation network, and the ventilation network corresponds to the setting position of the fan and the pipe opening of the conveying pipe; the auxiliary through grooves are inclined, and the inclination direction is toward the bottom end of the liquid loading box body.

[0012] Preferably, the bottom side of the liquid-carrying box body is not provided with an auxiliary through groove, and this part forms a containing space.

[0013] Preferably, the auxiliary component includes an auxiliary half-tube body, a connecting piece, a through hole, a fixed body, an inner groove, a first auxiliary ventilation hole, a movable conductor, a stabilizing auxiliary convex strip, an auxiliary spring, a rubber connecting plate, and a second auxiliary ventilation hole; a connecting piece is connected to one side of the auxiliary half-tube body, through holes are equidistantly arranged on the side wall of the auxiliary half-tube body, the fixed body is equidistantly fixed on the inner wall of the auxiliary half-tube body, and an inner groove is arranged in the fixed body, the first auxiliary ventilation holes are equidistantly arranged on the four side walls of the fixed body, the movable conductor is adaptively plugged in the inner groove, one end of the movable conductor is integrally formed with stabilizing auxiliary convex strips equidistantly arranged, the other end of the movable conductor is symmetrically fixed with an auxiliary spring, one end of the auxiliary spring is fixedly arranged on the rubber connecting plate, the rubber connecting plate is placed in the inner groove, and the second auxiliary ventilation holes are equidistantly arranged on the rubber connecting plate.

[0014] Preferably, the two auxiliary half-tube bodies form a clamping tube body, and the connecting piece arranged on one side of the auxiliary half-tube body is a half ring, and the half ring is provided with a connecting thread.

[0015] Preferably, the movable conductors are arranged in corresponding positions to the fixed body, are arranged in the same number of groups, and are arranged in an arc shape at equal intervals on the inner wall of the auxiliary semi-tube. The movable conductors are arranged at an angle, and the rubber connecting plate, the movable conductor and the inner groove are arranged in the same number of groups, and the side walls of the rubber connecting plate are tightly fitted with the side walls of the inner groove.

[0016] Preferably, the two connecting pieces form an externally threaded connecting ring, the externally threaded connecting ring and the externally threaded connecting head have corresponding setting positions and the same number of setting groups, and the externally threaded connecting ring and the internally threaded fastening cap are adapted for threaded connection.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The reactive power compensation device for a low-voltage distribution network designed by the present invention mainly stabilizes the connection position of the cable connector and the distribution device interface in the reactive power compensation device body through the coordinated use of the compensation control heat dissipation auxiliary mechanism and the auxiliary components, and has a good heat dissipation auxiliary effect for its connection position when the temperature is high, thereby avoiding the influence of high temperature on the operation of the line, and has a tightening effect on the connection between the cable connector and the distribution device interface, thereby ensuring the stable operation of its line transmission operation; therefore, the present invention solves the problem that the reactive power compensation device in the prior art lacks a matching line heat dissipation component, thereby improving the working efficiency of the reactive power compensation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the right side of the structure connection of the reactive power compensation device of the present invention;

[0020] Figure 2 For the present invention Figure 1 A partial enlarged schematic diagram of the structure connection;

[0021] Figure 3 It is a schematic diagram of the left side of the structure connection of the reactive power compensation device of the present invention;

[0022] Figure 4 The right side schematic diagram of the connection between the compensation control heat dissipation auxiliary mechanism and the auxiliary component structure of the present invention;

[0023] Figure 5 For the present invention Figure 4 A partial enlarged schematic diagram of the structure connection;

[0024] Figure 6 The left side schematic diagram is a diagram showing the connection between the auxiliary mechanism for compensating and controlling heat dissipation and the auxiliary component structure of the present invention;

[0025] Figure 7 For the present invention Figure 6 A partial enlarged schematic diagram of the structure connection;

[0026] Figure 8 It is a schematic diagram of the front side of the connection of the carrier structure in the compensation control heat dissipation auxiliary mechanism of the present invention;

[0027] Fig. 9 It is a schematic diagram of the back side of the connection of the support structure in the compensation control heat dissipation auxiliary mechanism of the present invention;

[0028] Fig.10 It is a schematic diagram of the local structural connection of the coolant loading box in the compensation control heat dissipation auxiliary mechanism of the present invention;

[0029] Fig.11 It is a schematic diagram of the right side of the auxiliary component structure connection of the present invention;

[0030] Fig.12It is a schematic diagram of the left side of the auxiliary component structure connection of the present invention;

[0031] Fig.13 It is a schematic diagram of the connection between the movable conductor and the fixed body structure in the auxiliary component of the present invention.

[0032] In the figure: reactive power compensation device body 1, cable connector 2, distribution device interface 3, compensation control heat dissipation auxiliary mechanism 4, conveying pipe 401, auxiliary branch pipe 402, buffer baffle 403, sealing cap 404, connecting hose 405, external thread connector 406, internal thread fastening cap 407, rotating auxiliary protrusion 408, carrier 409, fan 410, placement cavity 411, coolant loading box 412, feed inlet 413, handle 414, auxiliary through groove 415, positioning auxiliary frosted pad 416, auxiliary component 5, auxiliary half pipe 501, connector 502, through hole 503, fixed body 504, inner groove 505, first auxiliary vent 506, movable conductor 507, stabilizing auxiliary convex strip 508, auxiliary spring 509, rubber connecting plate 510, second auxiliary vent 511. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention are described clearly and completely below. The embodiments of the present invention and all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1-Figure 4 A reactive power compensation device for a low-voltage distribution network comprises a reactive power compensation device body 1, a cable connector 2, a distribution device interface 3, a compensation control heat dissipation auxiliary mechanism 4 and an auxiliary component 5; a cable connector 2 and a distribution device interface 3 are connected in the reactive power compensation device body 1, the cable connector 2 and the distribution device interface 3 are plug-connected, and the connection position of the cable connector 2 and the distribution device interface 3 is assisted in heat dissipation by the compensation control heat dissipation auxiliary mechanism 4, and the compensation control heat dissipation auxiliary mechanism 4 is connected and arranged with the auxiliary component 5; the present invention mainly stabilizes the connection position of the cable connector 2 and the distribution device interface 3 in the reactive power compensation device body 1 through the coordinated use of the compensation control heat dissipation auxiliary mechanism 4 and the auxiliary component 5, and when the temperature is high, the connection position has a good heat dissipation auxiliary effect to avoid the influence of high temperature on the operation of the line, and has a tightening effect on the connection between the cable connector 2 and the distribution device interface 3, thereby ensuring the stable operation of its line transmission work.

[0035] The problem that the reactive power compensation device in the prior art lacks a matching line heat dissipation component is further solved, so as to improve the working efficiency of the reactive power compensation device.

[0036] Example 2: Based on Example 1, please refer to Figure 1-Figure 10The compensation control heat dissipation auxiliary mechanism 4 here includes a conveying pipe 401, an auxiliary branch pipe 402, a buffer baffle 403, a sealing cap 404, a connecting hose 405, an external thread connector 406, an internal thread fastening cap 407, a rotating auxiliary protrusion 408, a carrier 409, a fan 410, a placement cavity 411, a coolant loading box 412, a feed port 413, a handle 414, an auxiliary through groove 415, and a positioning auxiliary frosted pad 416; the conveying pipe 401 is arranged in the reactive power compensation device body 1, one end of the conveying pipe 401 is embedded and fixedly arranged on the side wall of the reactive power compensation device body 1, and the conveying pipe 401 is equidistantly fixedly arranged with auxiliary branches 402, and the auxiliary branches 402 are connected to the conveying pipe 401, and Buffer baffles 403 are equidistantly arranged on the inner wall of the auxiliary branch pipe 402, and the buffer baffles 403 are equidistantly arranged in two rows on the inner wall of the auxiliary branch pipe 402, and the buffer baffles 403 in the two rows are staggered; one end of the connecting hose 405 is connected to the conveying pipe 401, and the other end of the connecting hose 405 is fixedly provided with an external thread connector 406, and an internal thread fastening cap 407 is threadedly provided on the external thread connector 406, and the outer wall of the internal thread fastening cap 407 is equidistantly fixed with rotating auxiliary protrusions 408, and a fixed side plate is provided on the carrier 409, and the fixed side plate is fixedly connected to the side wall of the reactive power compensation device body 1 by screws, and the carrier 409 and the conveying pipe 401 are set at corresponding positions and have the same number of groups. A placement cavity 411 is provided in the carrier 409, a fan 410 is connected to one end of the carrier 409, a coolant loading box 412 is adapted and plugged in the placement cavity 411, a handle 414 is fixedly provided on the top of the coolant loading box 412, and a feed port 413 is provided on the side wall of the coolant loading box 412, auxiliary through grooves 415 are equidistantly provided on both sides of the coolant loading box 412, a positioning auxiliary frosted pad 416 is connected and provided on the side wall of the coolant loading box 412, and the positioning auxiliary frosted pad 416 is provided at the position of the handle 414 near the end of the coolant loading box 412; the internal thread fastening cap 407 is connected and provided with the auxiliary component 5; the placement cavity 411 here is connected with the conveying pipe 401 The positions of the pipe openings are corresponding, the number of the pipe openings is the same, and the two are connected and arranged; when cooling the connection position of the cable connector 2 and the power distribution device interface 3, the fan 410 on the carrier 409 blows air, and the air flows into the connecting hose 405 through the conveying pipe 401, and then reaches the connection position of the cable connector 2 and the power distribution device interface 3 through the connecting hose 405; in this process, a coolant loading box 412 in a cavity 411 is arranged on the carrier 409, and auxiliary through grooves 415 are arranged on the coolant loading box 412. Here, the auxiliary through grooves 415 are equidistantly arranged on the side wall of the coolant loading box 412 to form a ventilation network, and the ventilation network corresponds to the position of the fan 410 and the pipe opening of the conveying pipe 401;The auxiliary slot 415 is arranged to be inclined, and the inclined direction is toward the bottom end of the liquid loading box body 412; and the bottom side of the cooling liquid loading box body 412 here is not provided with the auxiliary slot 415, and this part forms a storage space; the storage space is filled with cooling liquid or cooling volatile substances, and the blowing air of the fan 410 is blown into the auxiliary slot 415 on one side of the liquid loading box body 412, and the blowing air contacts the cooling liquid or cooling volatile substances to form a cold wind, and then flows out from the auxiliary slot 415 on the other side of the liquid loading box body 412, and flows into the main body 1 of the reactive power compensation device through the conveying pipe 401. ;

[0037] An auxiliary branch pipe 402 is also provided on the side wall of the conveying pipe 401. If the temperature in the reactive compensation device body 1 is also very high, the sealing cap 404 connected to the end of the auxiliary branch pipe 402 can be removed, so that a part of the cool air flows from the auxiliary branch pipe 402 into the internal space of the reactive compensation device body 1, which has a good cooling and heat dissipation auxiliary effect. The purpose of providing a buffer baffle 403 on the inner wall of the auxiliary branch pipe 402 is to prevent too much cool air from flowing out of the auxiliary branch pipe 402, so as to avoid affecting the cooling work of the connection position between the cable connector 2 and the distribution device interface 3.

[0038] The problem that the reactive power compensation device in the prior art lacks a matching line heat dissipation component is further solved, so as to improve the working efficiency of the reactive power compensation device.

[0039] Example 3: Based on Example 2, please refer to Figure 4 and Figure 11-13The auxiliary component 5 here includes an auxiliary half-tube body 501, a connecting piece 502, a through hole 503, a fixed body 504, an inner groove 505, a first auxiliary vent hole 506, a movable conductor 507, a stable auxiliary convex strip 508, an auxiliary spring 509, a rubber connecting plate 510, and a second auxiliary vent hole 511; a connecting piece 502 is connected to one side of the auxiliary half-tube body 501, and the two auxiliary half-tube bodies 501 here form a clamping tube body, and the connecting piece 502 arranged on one side of the auxiliary half-tube body 501 is a half ring, and the half ring is provided with a connecting thread; the two connecting pieces 502 here form an externally threaded connecting ring, and the externally threaded connecting ring is arranged in a position with the externally threaded connector 406 The auxiliary semi-tube body 501 is provided with through holes 503 at equal intervals on the side wall, the fixed body 504 is fixedly provided at equal intervals on the inner side wall of the auxiliary semi-tube body 501, and the fixed body 504 is provided with an inner groove 505, and the four side walls of the fixed body 504 are provided with first auxiliary vents 506 at equal intervals, and the movable conductor 507 is adapted and plugged in the inner groove 505, and one end of the movable conductor 507 is integrally formed with stable auxiliary convex strips 508 at equal intervals, and the other end of the movable conductor 507 is symmetrically fixed with an auxiliary spring 509, and one end of the auxiliary spring 509 is fixedly provided with a rubber connecting The rubber connecting plate 510 is placed in the inner groove 505, and the rubber connecting plate 510 is equidistantly provided with second auxiliary vent holes 511; the clamping tube body here has a stabilizing effect on the plugging of the cable connector 2 and the distribution device interface 3, and a fixed body 504 is provided on the inner wall of the clamping tube body, and the movable conductor 507 here corresponds to the setting position of the fixed body 504, and the number of the setting groups is the same, and the movable conductor 507 is equidistantly arranged in an arc shape on the inner wall of the auxiliary half tube body 501, and the movable conductor 507 is inclined. The rubber connecting plate 510, the movable conductor 507, and the inner groove 505 are provided with the same number of groups, and the side wall of the rubber connecting plate 510 and the inner groove 5 05 is tightly fitted with the side wall; the cold air transported from the connecting hose 405 enters into the clamping tube body, wherein the cold air also enters into the internal space of the reactive power compensation device body 1 from the through hole 503 on the clamping tube body, and part of the cold air also enters into the inner groove 505 from the first auxiliary vent hole 506 on the side of the fixed body 504, and contacts with the movable conductor 507 in the inner groove 505, and the movable conductor 507 cools the cable connector 2 and the distribution device interface 3 which are in tight contact with the clamp, and a stabilizing auxiliary convex strip 508 is arranged at the clamping end of the movable conductor 507, so as to further ensure the stability of the connection between the cable connector 2 and the distribution device interface 3, and at the same time have a good contact cooling effect.

[0040] The problem that the reactive power compensation device in the prior art lacks a matching line heat dissipation component is further solved, so as to improve the working efficiency of the reactive power compensation device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reactive power compensation device for a low voltage distribution network, characterized in that: The reactive power compensation device comprises a main body (1), a cable connector (2), a power distribution device interface (3), a compensation control heat dissipation auxiliary mechanism (4) and an auxiliary component (5); the reactive power compensation device main body (1) is connected with a cable connector (2) and a power distribution device interface (3); the cable connector (2) and the power distribution device interface (3) are plug-connected; the connection position of the cable connector (2) and the power distribution device interface (3) is assisted in heat dissipation by the compensation control heat dissipation auxiliary mechanism (4); the compensation control heat dissipation auxiliary mechanism (4) is connected with the auxiliary component (5); The auxiliary component (5) comprises an auxiliary half-tube (501), a connecting piece (502), a through hole (503), a fixed body (504), an inner groove (505), a first auxiliary vent (506), a movable conductor (507), a stabilizing auxiliary convex strip (508), an auxiliary spring (509), a rubber connecting plate (510), and a second auxiliary vent (511); one side of the auxiliary half-tube (501) is connected to the connecting piece (502), the side wall of the auxiliary half-tube (501) is equidistantly provided with through holes (503), the fixed body (504) is equidistantly fixedly provided on the inner side wall of the auxiliary half-tube (501), and the fixed body (504) An inner groove (505) is provided in the fixed body (504), four side walls of the fixed body (504) are equidistantly provided with first auxiliary vent holes (506), the movable conductor (507) is adapted and plugged in the inner groove (505), one end of the movable conductor (507) is integrally formed with stabilizing auxiliary convex strips (508) equidistantly provided, the other end of the movable conductor (507) is symmetrically fixed with an auxiliary spring (509), one end of the auxiliary spring (509) is fixedly provided on a rubber connecting plate (510), the rubber connecting plate (510) is placed in the inner groove (505), and second auxiliary vent holes (511) are equidistantly provided on the rubber connecting plate (510).

2. A reactive power compensation device for a low voltage distribution network according to claim 1, characterized in that: The compensation control heat dissipation auxiliary mechanism (4) comprises a conveying pipe (401), an auxiliary branch pipe (402), a buffer baffle (403), a sealing cap (404), a connecting hose (405), an external thread connector (406), an internal thread fastening cap (407), a rotating auxiliary protrusion (408), a carrier (409), a fan (410), a placement cavity (411), a coolant loading box (412), a feed port (413), a handle (414), an auxiliary through groove (415), and a positioning auxiliary frosted pad (416); the conveying pipe (401) is arranged on the main body of the reactive power compensation device (1), one end of the delivery pipe (401) is embedded and fixedly arranged on the side wall of the reactive power compensation device body (1), and auxiliary branch pipes (402) are fixedly arranged on the delivery pipe (401) at equal intervals, the auxiliary branch pipes (402) are connected to the delivery pipe (401), and buffer baffles (403) are equidistantly arranged on the inner wall of the auxiliary branch pipe (402), one end of the connecting hose (405) is connected to the delivery pipe (401), and the other end of the connecting hose (405) is fixedly arranged with an external threaded connector (406), and the threaded connector (406) is provided on the threaded connector. An internal thread fastening cap (407) is arranged, and the outer wall of the internal thread fastening cap (407) is fixedly provided with rotation auxiliary protrusions (408) at equal intervals. A fixed side plate is arranged on the carrier (409), and the fixed side plate is fixedly connected to the side wall of the reactive power compensation device body (1) by screws. The carrier (409) and the conveying pipe (401) are arranged at corresponding positions and have the same number of groups. A placement cavity (411) is arranged in the carrier (409), and a fan (410) is connected to one end of the carrier (409). A coolant loading box is arranged in the placement cavity (411) in a matching manner. The coolant loading box body (412) is provided with a handle (414) fixedly disposed on the top of the coolant loading box body (412), and a feed port (413) is disposed on the side wall of the coolant loading box body (412), and auxiliary through grooves (415) are equidistantly disposed on both sides of the coolant loading box body (412), and the positioning auxiliary frosted pad (416) is connected and disposed on the side wall of the coolant loading box body (412), and the positioning auxiliary frosted pad (416) is disposed at a position of the handle (414) near the end of the coolant loading box body (412); and the internal thread fastening cap (407) is connected and disposed with the auxiliary component (5).

3. A reactive power compensation device for a low voltage distribution network according to claim 2, characterized in that: The buffer baffles (403) are arranged in two rows at equal distances on the inner side wall of the auxiliary branch pipe (402), and the buffer baffles (403) in the two rows are arranged in a staggered manner.

4. A reactive power compensation device for a low voltage distribution network according to claim 2, characterized in that: The placement cavity (411) corresponds to the pipe opening of the conveying pipe (401) in the same position and has the same number of groups, and the two are connected and arranged.

5. A reactive power compensation device for a low voltage distribution network according to claim 2, characterized in that: The auxiliary through grooves (415) are arranged at equal intervals on the side wall of the coolant loading box (412) to form a ventilation net, and the ventilation net corresponds to the setting positions of the fan (410) and the pipe openings of the conveying pipe (401); the auxiliary through grooves (415) are arranged inclined, and the inclination direction is toward the bottom end of the coolant loading box (412).

6. A reactive power compensation device for a low voltage distribution network according to claim 2, characterized in that: The bottom side of the coolant loading box body (412) is not provided with an auxiliary through groove (415), and this part forms a containing space.

7. A reactive power compensation device for a low voltage distribution network according to claim 1, characterized in that: The two auxiliary half-tube bodies (501) form a clamping tube body, and the connecting piece (502) arranged on one side of the auxiliary half-tube body (501) is a half ring, and the half ring is provided with a connecting thread.

8. A reactive power compensation device for a low voltage distribution network according to claim 1, characterized in that: The movable conductors (507) and the fixed body (504) are arranged at corresponding positions and in the same number of groups, and the movable conductors (507) are arranged in an arc shape at equal intervals on the inner wall of the auxiliary half-tube (501), and the movable conductors (507) are arranged obliquely, and the rubber connecting plate (510), the movable conductors (507), and the inner groove (505) are arranged in the same number of groups, and the side wall of the rubber connecting plate (510) is tightly fitted with the side wall of the inner groove (505).

9. A reactive power compensation device for a low voltage distribution network according to claim 1, characterized in that: The two connecting pieces (502) form an externally threaded connecting ring, the externally threaded connecting ring and the externally threaded connecting head (406) are arranged at corresponding positions and have the same number of groups, and the externally threaded connecting ring and the internally threaded fastening cap (407) are adapted to be threadedly connected.

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