CN218678457U - Reactive compensation equipment for low-voltage distribution network - Google Patents

Abstract

The utility model discloses a reactive power compensation device for a low-voltage distribution network, which comprises an outer box body, a panel is arranged in the outer box body, and both sides of the panel are installed on the inner wall of the outer box through a mounting structure. Three voltmeters are installed on the panel, and the bottom ends of the voltmeters are all provided with lugs, and the lugs are connected with three capacitors through connecting wires, and the installation structure includes being installed on the inner wall of the outer box One side of the installation side plate is provided with an installation card slot, both sides of the panel are provided with installation blocks matching the installation card slot, and the top of the installation side plate is symmetrically fixed The bolt column has beneficial effects: the device has a simple structure, is easy to use, and is convenient for installing and fixing the panel, and at the same time, facilitates disassembly and maintenance of the panel, and while the overall structure is compact, it does not affect the heat dissipation and ventilation effect inside.

Description

A low-voltage distribution network reactive power compensation equipment

technical field

The utility model relates to the technical field of reactive power compensation, in particular to a reactive power compensation device for a low-voltage distribution network.

Background technique

The role of the reactive power compensation device in the electronic power supply system is to improve the power factor of the power grid, reduce the loss of power supply transformers and transmission lines, improve power supply efficiency, and improve the power supply environment, which has a profound impact on the entire power supply system. At present, many The reactive power compensation and voltage regulation of the local power system still adopt the traditional regulation method. On-load tap changer transformers and electrostatic capacitors can only be adjusted and switched manually, and real-time voltage regulation or reactive power compensation cannot be realized. For this, in the patent No. The Chinese patent CN201520078738.X discloses an intelligent low-voltage reactive power compensation device for distribution network, which has the advantages of high protection level, reasonable structure, strong practicability, and obvious power-saving effect. , improving the quality of power supply has a significant effect, while realizing real-time reactive power compensation to ensure the continuous stability of the power system voltage.

However, in actual use, the structure is relatively fixed, which is not convenient for staff to deploy, which affects the efficiency of equipment maintenance, and overall it is not convenient for staff to quickly install, the installation efficiency is low, and it cannot meet the needs of use.

Aiming at the problems in the related technologies, no effective solution has been proposed yet.

Utility model content

Aiming at the problems in the related technologies, the utility model proposes a reactive power compensation device for a low-voltage distribution network to overcome the above-mentioned technical problems in the existing related technologies.

The technical scheme of the utility model is achieved in that:

A reactive power compensation device for a low-voltage distribution network, comprising an outer box, a panel is arranged in the outer box, the two sides of the panel are installed on the inner wall of the outer box through a mounting structure, and the panel is installed There are three voltmeters, the bottom ends of the voltmeters are all provided with lugs, and the lugs are connected with three capacitors through connecting wires. The installation structure includes an installation side plate installed on the inner wall of the outer box, One side of the installation side plate is provided with an installation card slot, and both sides of the panel are provided with installation blocks matching the installation card slot, and the top of the installation side plate is symmetrically fixed with bolt columns, so that A limit top plate is provided above the installation side plate, and installation through holes matching the bolt columns are symmetrically provided on the limit limit top plate, and positioning nuts matching the bolt columns are arranged above the installation through holes. , the bottom of the limiting top plate is provided with a limiting block matching the installation slot.

Further, a sealed door is movably connected to the outer box through a hinge, and a handle and an observation window are installed on the sealed door. Both sides of the outer box are provided with vents, and the vents are detachable. A dust filter is installed.

Further, the bottom of the outer box is symmetrically provided with an L-shaped mounting plate, and the L-shaped mounting plate is symmetrically provided with mounting holes.

Further, the bottom of the inner wall of the outer box is provided with a heat dissipation bottom plate, and three spacer sleeves are installed on the heat dissipation bottom plate, and the bottom of the capacitor is located in the spacer sleeves.

Further, a temperature sensor is installed on the top of the inner wall of the outer box, and a temperature alarm electrically connected to the temperature sensor is installed on the top of the outer box.

Further, the outer box is composed of an outer shell and an inner shell, and an insulating plate is provided between the outer shell and the inner shell.

The utility model provides a low-voltage distribution network reactive power compensation device, the beneficial effects are as follows:

A panel is provided in the outer box, and the two sides of the panel are installed on the inner wall of the outer box through the installation structure. Three voltmeters are installed on the panel. When using a capacitor, through the function of the installation structure, firstly fix the installation side panels on both sides of the inner wall of the outer box, and then install the installation blocks at both ends of the panel in the installation card slot, so that the panel is installed in the outer box. , and then install the limit top plate on the top plate of the installation side plate, and make the bolt column pass through the installation through hole, and then fix it through the positioning nut, so that the limit block is installed in the installation card slot from the top, and the installation card slot The installation block is compressed and limited. Finally, one end of the connecting wire is connected to the terminal, and the other end is connected to the capacitor to complete the installation. Such a device has a simple structure, is easy to use, and is convenient for installation and fixing of the panel. At the same time, It is convenient for disassembly and maintenance of the panel, and while the overall structure is compact, it does not affect the heat dissipation and ventilation effect inside.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention. For some embodiments of the present invention, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is a front view of a reactive power compensation device for a low-voltage distribution network according to an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a reactive power compensation device for a low-voltage distribution network according to an embodiment of the present invention;

Fig. 3 is a structural schematic diagram of an installation structure in a low-voltage distribution network reactive power compensation device according to an embodiment of the utility model;

Fig. 4 is a schematic structural diagram of a middle and outer box of a reactive power compensation device for a low-voltage distribution network according to an embodiment of the utility model.

In the picture:

1. Outer box; 2. Panel; 3. Installation structure; 4. Voltmeter; 5. Connector; 6. Connecting wire; 7. Capacitor; block; 11, bolt column; 12, limit top plate; 13, limit block; 14, installation through hole; 15, positioning nut; 16, sealed door; 17, observation window; 18, handle; 19, L-shaped installation plate ;20, installation hole; 21, heat dissipation port; 22, dust-proof net; 23, heat dissipation bottom plate; 24, limit sleeve; 25, temperature sensor; 26, temperature alarm; 27, outer shell; 28, inner shell; 29. Insulation board.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

Below, in conjunction with accompanying drawing and specific embodiment, the utility model is made further description:

Embodiment one:

Please refer to Figures 1-4, a reactive power compensation device for a low-voltage distribution network according to an embodiment of the present invention includes an outer box 1, and a panel 2 is arranged inside the outer box 1, and the two sides of the panel 2 Installed on the inner wall of the outer box 1 through the installation structure 3, three voltmeters 4 are installed on the panel 2, and the bottom ends of the voltmeters 4 are provided with terminal blocks 5, which are connected by connecting The wire 6 is connected with three capacitors 7. The installation structure 3 includes an installation side plate 8 installed on the inner wall of the outer box 1. One side of the installation side plate 8 is provided with an installation card slot 9. The panel 2 Both sides of the side are provided with installation blocks 10 that match the installation slot 9, the top of the installation side plate 8 is symmetrically fixed with a bolt column 11, and the top of the installation side plate 8 is provided with a limit top plate 12, so that The position-limiting top plate 12 is symmetrically provided with installation through-holes 14 matched with the bolt columns 11, and above the installation through-holes 14 are provided with positioning nuts 15 matched with the bolt columns 11. The bottom of the top plate 12 is provided with a limit block 13 matching the installation slot 9 .

Through the above scheme of the present utility model, by providing a panel 2 in the outer box 1, the two sides of the panel 2 are installed on the inner wall of the outer box 1 through the installation structure 3, and the panel 2 is installed with three voltage Table 4, the bottom end of the voltmeter 4 is provided with a lug 5, the lug 5 is connected with three capacitors 7 through the connecting wire 6, and the installation structure 3 includes a The installation side plate 8, one side of the installation side plate 8 is provided with an installation card slot 9, and both sides of the panel 2 are provided with an installation card block 10 that matches the installation card slot 9, and the installation The top of the side plate 8 is symmetrically fixed with a bolt column 11, and the top of the installation side plate 8 is provided with a limit top plate 12, and the space limit top plate 12 is symmetrically provided with an installation through hole 14 matched with the bolt column 11. Above the installation through-holes 14 are provided with positioning nuts 15 that match the bolt columns 11, and the bottom of the space-limiting top plate 12 is provided with a spacer 13 that matches the installation slot 9. When in use , through the function of the installation structure 3, firstly fix the installation side panels 8 on both sides of the inner wall of the outer box 1, and then install the installation blocks 10 at both ends of the panel 2 in the installation slot 9, so that the panel 2 is installed in the outer box In the body 1, the limit top plate 12 is installed on the top plate of the installation side plate 8, and the bolt column 11 is penetrated through the installation through hole 14, and then it is fixed by the positioning nut 15, so that the limit block 13 is installed on the installation from the top. In the card slot 9, the installation block 10 in the installation card slot 9 is compressed and limited, and finally, one end of the connecting wire 6 is connected to the terminal 5, and the other end is connected to the capacitor 7 to complete the installation. Such a device The structure is simple, easy to use, convenient to install and fix the panel 2, and at the same time, it is convenient to disassemble and maintain the panel, and while the overall structure is compact, it does not affect the heat dissipation and ventilation effect inside it.

Embodiment two:

As shown in Figure 1, a sealed door 16 is movably connected to the outer box body 1 through a hinge, and a handle 18 and an observation window 17 are installed on the sealed door 16. Both sides of the outer box body 1 are provided with The heat dissipation port 21 is detachably installed with a dust-proof net 22, through the effect of the sealing door 16, it is convenient to seal the outer casing 1, and the observation window 17 is convenient for penetrating through it;

Embodiment three:

As shown in Figure 1, the bottom of the outer box 1 is symmetrically provided with an L-shaped mounting plate 19, and the L-shaped mounting plate 19 is symmetrically provided with mounting holes 20, and the L-shaped mounting plate 19 is matched with the mounting holes 20, which is convenient Install and fix the outer box body 1;

Embodiment four:

As shown in Figure 1, Figure 2 and Figure 4, a temperature sensor 25 is installed on the top of the inner wall of the outer box 1, and a temperature alarm electrically connected to the temperature sensor 25 is installed on the outer top of the outer box 1 26. The outer casing 1 is composed of an outer casing 27 and an inner casing 28, an insulating plate 29 is provided between the outer casing 27 and the inner casing 28, and the temperature sensor 25 detects the temperature in the outer casing 1 Temperature, when the temperature is abnormal, the temperature alarm 26 is used to alarm, and the insulation board 29 is used to increase the overall insulation of the outer box body 1.

In actual application, through the function of the installation structure 3, the installation side panels 8 are first fixed on both sides of the inner wall of the outer box body 1, and then the installation blocks 10 at both ends of the panel 2 are installed in the installation slot 9, so that the panel 2 Installed in the outer box body 1, and then install the limit top plate 12 on the top plate of the installation side plate 8, and make the bolt column 11 penetrate the installation through hole 14, and then fix it by the positioning nut 15, so that the limit block 13 is from The top is installed in the installation card slot 9, and the installation card block 10 in the installation card slot 9 is pressed and limited. Finally, one end of the connecting wire 6 is connected to the terminal 5, and the other end is connected to the capacitor 7 to complete the installation. Such a device has a simple structure, is convenient to use, and is convenient for installing and fixing the panel 2. At the same time, it is convenient for disassembly and maintenance of the panel, and while the overall structure is compact, it does not affect the heat dissipation and ventilation effect inside it.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (6)

1. A reactive compensation device for a low-voltage distribution network comprises an outer box body (1) and is characterized in that, a panel (2) is arranged in the outer box body (1), two sides of the panel (2) are arranged on the inner wall of the outer box body (1) through mounting structures (3), three voltmeters (4) are installed on the panel (2), the bottom ends of the voltmeters (4) are provided with connector lugs (5), the connector lug (5) is connected with three capacitors (7) through connecting wires (6), the mounting structure (3) comprises a mounting side plate (8) mounted on the inner wall of the outer box body (1), one side of the mounting side plate (8) is provided with a mounting clamping groove (9), both sides of the panel (2) are provided with mounting clamping blocks (10) matched with the mounting clamping grooves (9), the top of the mounting side plate (8) is symmetrically fixed with bolt columns (11), a limit top plate (12) is arranged above the mounting side plate (8), mounting through holes (14) matched with the bolt columns (11) are symmetrically arranged on the limit top plate (12), positioning nuts (15) matched with the bolt columns (11) are arranged above the mounting through holes (14), and a limiting block (13) matched with the mounting clamping groove (9) is arranged at the bottom of the limiting top plate (12).

2. The reactive power compensation equipment for the low-voltage power distribution network according to claim 1, wherein a sealing door (16) is movably connected to the outer box body (1) through a hinge, a handle (18) and an observation window (17) are installed on the sealing door (16), heat dissipation openings (21) are formed in two sides of the outer box body (1), and a dust screen (22) is detachably installed on each heat dissipation opening (21).

3. The reactive compensation equipment for the low-voltage distribution network according to claim 2, wherein the bottom of the outer box (1) is symmetrically provided with L-shaped mounting plates (19), and the L-shaped mounting plates (19) are symmetrically provided with mounting holes (20).

4. The reactive compensation equipment for the low-voltage distribution network according to claim 3, wherein a heat dissipation bottom plate (23) is arranged at the bottom of the inner wall of the outer box (1), three limiting sleeves (24) are mounted on the heat dissipation bottom plate (23), and the bottom of the capacitor (7) is located in the limiting sleeves (24).

5. The reactive compensation equipment for the low-voltage distribution network according to claim 4, wherein a temperature sensor (25) is installed on the top of the inner wall of the outer box (1), and a temperature alarm (26) electrically connected with the temperature sensor (25) is installed on the top of the outer box (1).

6. Reactive compensation equipment for a low-voltage distribution network according to claim 5, characterized in that the outer box (1) consists of an outer shell (27) and an inner shell (28), and an insulating plate (29) is arranged between the outer shell (27) and the inner shell (28).

Images