Lightning protection component for secondary protection of electric power

Abstract

The utility model discloses an electric power secondary protection lightning protection component which comprises a lightning arrester and a grounding wire used for lightning protection, the lightning arrester is provided with a bracket used for assisting installation of the lightning arrester, the lower end of the lightning arrester is provided with a disconnector, and the electric power secondary protection lightning protection component further comprises a conductive plate which is fixed at the lower end of the disconnector and used for current transmission. And a plurality of groups of grounding wires are arranged and are uniformly distributed at the periphery of the current-conducting plate. According to the electric power secondary protection lightning protection component, in the process of using the lightning arrester to carry out electric power secondary protection, the multiple groups of grounding wires are connected with the conductive plate through the press-fit fastening assembly and the installation limiting group, in the installation process, the multiple groups of grounding wires are uniformly distributed in an annular array state, and in the lightning arrester protection use process, the grounding wires are connected with the conductive plate through the press-fit fastening assembly and the installation limiting group. The current dispersing effect is ensured, more uniform current distribution is realized through uniformly arranging the grounding wires on the periphery, non-uniform current distribution is avoided, and the efficiency of the lightning arrester and the stability of a grounding system are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power secondary protection lightning protection, in particular to an electric power secondary protection lightning protection component. Background Art

[0002] The lightning protection components of power secondary protection mainly include lightning arresters, grounding grids and lightning arresters. These components play a key role in lightning protection in the power system to ensure the safe operation of equipment.

[0003] In the process of using lightning arresters for secondary lightning protection of electric power, in order to ensure the dispersion effect, multiple grounding wires are used to prevent the grounding wires from corrosion and breakage in the middle or other equipment in series in the middle. When multiple sets of grounding wires are installed and connected to the lightning arrester, they are connected from bottom to bottom on the disconnector and from top to bottom in sequence, causing the current to be transmitted from each grounding wire in sequence during the transmission process, which is prone to uneven current distribution. In this process, some grounding wires may bear more current load, while others may have a lighter load. This uneven current distribution may affect the effectiveness of lightning protection components and the stability of the grounding system.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A secondary power protection lightning protection component includes a lightning arrester and a grounding wire for lightning protection, wherein the lightning arrester is provided with a bracket for assisting the installation of the lightning arrester, a disconnector is installed at the lower end of the lightning arrester, and also includes a conductive plate fixed at the lower end of the disconnector for current transmission, wherein the grounding wires are provided in multiple groups and are evenly distributed around the conductive plate, and a pressing and fastening assembly for pressing and fastening the grounding wires and an installation limit assembly for installation limit are provided between the grounding wires and the conductive plate.

[0007] The pressing and fastening assembly comprises an L-shaped frame fixed on the conductive plate, the L-shaped frame is connected with a pressing plate via an elastic component, and the lower end of the pressing plate is pressed against the upper end of the conductive plate under the elastic force of the elastic component.

[0008] The front side of the conductive plate is provided with an inclined surface for resisting transmission.

[0009] The elastic component includes a plurality of sleeves fixed on the L-shaped frame, a sliding rod is slidably connected to the sleeve, one end of the sliding rod is fixed to the pressure plate, an extrusion spring is sleeved on the outer side of the sleeve, and the two ends of the extrusion spring are respectively set against the L-shaped frame and the pressure plate.

[0010] The installation limit assembly includes a connecting guide plate fixed on the end of the grounding wire, a limit hole is provided on the connecting guide plate, and a T-shaped limit pin for inserting and limiting the limit hole is connected to the L-shaped frame through a connecting assembly.

[0011] The connecting assembly includes a fixed plate fixed on the L-shaped frame, the T-shaped limit pin is slidably connected to the fixed plate, a connecting spring is sleeved on the outer side of the T-shaped limit pin, the two ends of the connecting spring are respectively connected to one end of the T-shaped limit pin and the fixed plate, and a pulling pin is fixed to the upper end of the T-shaped limit pin.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model provides a secondary power protection lightning protection component. During the use of the arrester for secondary power protection, multiple groups of grounding wires are installed and connected to the conductive plate through a press-fit fastening assembly and an installation limit group. During the installation process, the multiple groups of grounding wires are evenly arranged in a ring array state. During the use of the arrester for protection, while ensuring the current dispersion effect, a more uniform current distribution is achieved by evenly arranging the grounding wires on all sides, avoiding uneven current distribution, and ensuring the effectiveness of the arrester and the stability of the grounding system.

[0014] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the attached picture:

[0016] Figure 1 It is a schematic diagram of the overall appearance structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the press-fit fastening assembly, the elastic assembly and the installation limit assembly of the utility model;

[0018] Figure 3 This is a schematic diagram of the grounding wire structure of the utility model.

[0019] In the figure: 101-lightning arrester; 102-bracket; 103-disconnector; 104-grounding wire; 2-conductive plate; 301-L-shaped frame; 302-pressure plate; 4-inclined surface; 501-sleeve; 502-slide rod; 503-extrusion spring; 601-connecting guide plate; 602-limiting hole; 603-T-type limiting pin; 701-fixing plate; 702-connecting spring; 703-pull pin. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0021] like Figures 1 to 3 As shown, a secondary lightning protection component for electric power includes a lightning arrester 101 and a grounding wire 104 for lightning protection, a bracket 102 for assisting the installation of the lightning arrester 101 is arranged on the lightning arrester 101, a disconnector 103 is installed at the lower end of the lightning arrester 101, and also includes a conductive plate 2 for current transmission fixed at the lower end of the disconnector 103, a plurality of grounding wires 104 are arranged and evenly distributed around the conductive plate 2, and a pressing and fastening assembly for pressing and fastening the grounding wire 104 and an installation limit assembly for installation limit are arranged between the grounding wire 104 and the conductive plate 2;

[0022] During the use of the lightning arrester 101 for secondary power protection, multiple groups of grounding wires 104 are installed and connected to the conductive plate 2 through a press-fit fastening assembly and an installation limit group. During the installation process, multiple groups of grounding wires 104 are evenly distributed in a ring array. During the protection and use of the lightning arrester 101, while ensuring the current dispersion effect, a more uniform current distribution is achieved by evenly arranging the grounding wires 104 all around, avoiding uneven current distribution, and ensuring the effectiveness of the lightning arrester 101 and the stability of the grounding system.

[0023] The pressing and fastening assembly includes an L-shaped frame 301 fixed on the conductive plate 2, and a pressing plate 302 is connected to the L-shaped frame 301 through an elastic assembly, and the lower end of the pressing plate 302 is pressed against the upper end of the conductive plate 2 under the elastic force of the elastic assembly; in the process of pushing and limiting the connecting guide plate 601 on the grounding wire 104, the pressing plate 302 is pushed against the connecting guide plate 601 through the elastic assembly, so that the connecting guide plate 601 is pressed between the pressing plate 302 and the conductive plate 2, thereby ensuring the fastening effect and avoiding the situation that when the grounding wire 104 is not tightly connected, the current may encounter obstacles during the transmission process, resulting in excessive current load on part of the grounding wire 104, while other parts may have a smaller load.

[0024] The front side of the conductive plate 2 is provided with an inclined plane 4 for counteracting transmission; the inclined plane 4 facilitates counteracting transmission with the front end of the grounding wire 104 .

[0025] The elastic component includes a plurality of sleeves 501 fixed on the L-shaped frame 301, a slide rod 502 is slidably connected to the sleeve 501, one end of the slide rod 502 is fixed to the pressure plate 302, an extrusion spring 503 is sleeved on the outer side of the sleeve 501, and the two ends of the extrusion spring 503 are respectively set against the L-shaped frame 301 and the pressure plate 302; through the multiple groups of sleeves 501 and the slide rod 502, the stable telescopic movement of the pressure plate 302 is facilitated, and through the extrusion spring 503, the pressure plate 302 is extruded and pushed.

[0026] The installation limit assembly includes a connecting guide plate 601 fixed on the end of the grounding wire 104, a limit hole 602 is provided on the connecting guide plate 601, and a T-shaped limit pin 603 for inserting and limiting the limit hole 602 is connected to the L-shaped frame 301 through the connecting assembly; in the process of pushing the connecting guide plate 601, the T-shaped limit pin 603 is pulled upward, and the limit hole 602 on the connecting guide plate 601 is pushed below the T-shaped limit pin 603. At this time, the pulling of the T-shaped limit pin 603 is released, so that the end of the T-shaped limit pin 603 is inserted into the limit hole 602 of the connecting guide plate 601, and the grounding wire 104 is installed and limited, which is convenient for the stable use of the grounding wire 104.

[0027] The connecting assembly includes a fixed plate 701 fixed on the L-shaped frame 301, a T-shaped limit pin 603 is slidably connected to the fixed plate 701, a connecting spring 702 is sleeved on the outer side of the T-shaped limit pin 603, both ends of the connecting spring 702 are respectively connected to one end of the T-shaped limit pin 603 and the fixed plate 701, and a pulling pin 703 is fixed to the upper end of the T-shaped limit pin 603; the sliding connection of the T-shaped limit pin 603 is facilitated by the fixed plate 701, and the reset of the T-shaped limit pin 603 after movement is facilitated by the connecting spring 702.

[0028] When using the arrester 101 for secondary power protection, multiple groups of grounding wires 104 are installed and connected to the conductive plate 2 through a press-fit fastening assembly and an installation limiter. During the installation process, multiple groups of grounding wires 104 are evenly arranged in a ring array. During the protection and use of the arrester 101, while ensuring the current dispersion effect, a more uniform current distribution is achieved by evenly arranging the grounding wires 104 around, avoiding uneven current distribution, and ensuring the effectiveness of the arrester 101 and the stability of the grounding system.

[0029] During the process of pressing and limiting the installation of the grounding wire 104, the connecting guide plate 601 at the front end of the grounding wire 104 is pushed toward the pressing plate 302. During the pushing process, the front end of the connecting guide plate 601 abuts against the inclined surface 4 on the pressing plate 302, pushing the pressing plate 302 to contract toward the L-shaped frame 301. In the process of pushing the connecting guide plate 601, the T-shaped limiting pin 603 is pulled upward. By pushing the connecting guide plate 601, the limiting hole 602 on the connecting guide plate 601 is located below the T-shaped limiting pin 603. At this time, the pulling of the T-shaped limiting pin 603 is released, so that the end of the T-shaped limiting pin 603 is inserted into the limiting hole 602 of the connecting guide plate 601, and the grounding wire 104 is installed and limited, which is convenient for the stable use of the grounding wire 104.

[0030] In the process of pushing and limiting the connecting guide plate 601 on the grounding wire 104, the pressure plate 302 is pushed against the connecting guide plate 601 through the elastic component, so that the connecting guide plate 601 is pressed between the pressure plate 302 and the conductive plate 2, thereby ensuring the fastening effect and avoiding the situation where the grounding wire 104 is not tightly connected, the current may encounter obstacles during the transmission process, resulting in part of the grounding wire 104 bearing too much current load, while other parts may have a smaller load.

Claims

1. A power secondary protection lightning protection component, comprising: A lightning arrester (101) and a grounding wire (104) for lightning protection, wherein the lightning arrester (101) is provided with a bracket (102) for assisting the installation of the lightning arrester (101), and a disconnector (103) is installed at the lower end of the lightning arrester (101); It is characterized by further comprising: A conductive plate (2) for current transmission is fixed at the lower end of a disconnector (103); a plurality of grounding wires (104) are arranged and evenly distributed around the conductive plate (2); and a pressing and fastening assembly for pressing and fastening the grounding wires (104) and an installation limit assembly for installation limit are arranged between the grounding wires (104) and the conductive plate (2).

2. The power secondary protection lightning protection component according to claim 1, characterized in that: The pressing and fastening assembly comprises an L-shaped frame (301) fixed on the conductive plate (2); a pressing plate (302) is connected to the L-shaped frame (301) via an elastic component, and the lower end of the pressing plate (302) abuts against the upper end of the conductive plate (2) under the elastic force of the elastic component.

3. The power secondary protection lightning protection component according to claim 2, characterized in that: The front side of the conductive plate (2) is provided with an inclined surface (4) for resisting transmission.

4. The power secondary protection lightning protection component according to claim 2, characterized in that: The elastic force component comprises a plurality of sleeves (501) fixed on an L-shaped frame (301), a sliding rod (502) being slidably connected to the sleeves (501), one end of the sliding rod (502) being fixed to the pressure plate (302), an extrusion spring (503) being sleeved on the outer side of the sleeve (501), and two ends of the extrusion spring (503) being respectively arranged to abut against the L-shaped frame (301) and the pressure plate (302).

5. The power secondary protection lightning protection component according to claim 2, characterized in that: The installation limit assembly comprises a connection guide plate (601) fixed to the end of the grounding wire (104), a limit hole (602) is provided on the connection guide plate (601), and a T-shaped limit pin (603) for inserting and limiting the limit hole (602) is connected to the L-shaped frame (301) through a connection assembly.

6. The power secondary protection lightning protection component according to claim 5, characterized in that: The connection assembly comprises a fixed plate (701) fixed on the L-shaped frame (301), the T-shaped limit pin (603) is slidably connected to the fixed plate (701), a connecting spring (702) is sleeved on the outer side of the T-shaped limit pin (603), two ends of the connecting spring (702) are respectively connected to one end of the T-shaped limit pin (603) and the fixed plate (701), and a pulling pin (703) is fixed to the upper end of the T-shaped limit pin (603).

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