A grounding grid corrosion erosion testing and verification device

Abstract

This invention provides a grounding grid corrosion erosion testing and verification device, including a simulated grounding grid, a monitoring device, and a simulated tower. The simulated grounding grid is a three-dimensional mesh structure formed by connecting horizontal grounding electrodes, vertical grounding electrodes, and simulated corrosion grounding electrodes. The simulated grounding grid is divided into a first simulated area and a second simulated area. Any set of horizontal and vertical grounding electrodes in the first simulated area and any set of horizontal and vertical grounding electrodes in the second simulated area are simulated corrosion grounding electrodes. The simulated tower is connected to the simulated grounding grid via a grounding down conductor. The monitoring device is connected to the simulated tower via a current injection line and to the simulated grounding grid via a voltage measurement line. By setting a replaceable simulated grounding grid structure, this invention can provide an effective experimental environment for the corrosion research of grounding grids.

Description

Technical Field

[0001] This utility model relates to the field of grounding grid simulation technology, and in particular to a grounding grid corrosion and erosion testing and verification device. Background Technology

[0002] As the cornerstone of safe operation of power systems, grounding grids are buried in complex soil environments for extended periods, facing multiple forms of damage including electrochemical corrosion, stray current erosion, and microbial corrosion. This leads to a reduction in conductor cross-sectional area and an increase in grounding resistance, seriously threatening the insulation coordination of substation equipment and the safety of personnel. Current methods for verifying the accuracy of grounding grid performance testing often rely on simulation, real-world testing, or simply burying a section of grounding flat iron. These methods suffer from significant discrepancies with actual conditions, high communication costs, and simplistic scenarios lacking sufficient theoretical support. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a grounding grid corrosion erosion testing and verification device to solve the above-mentioned problems in the prior art.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A grounding grid corrosion erosion testing and verification device includes a simulated grounding grid, a monitoring device, and a simulated tower. The simulated grounding grid is a three-dimensional mesh structure formed by connecting horizontal grounding electrodes, vertical grounding electrodes, and simulated corrosion grounding electrodes. The simulated grounding grid is divided into a first simulated area and a second simulated area. Any set of horizontal and vertical grounding electrodes in the first simulated area and any set of horizontal and vertical grounding electrodes in the second simulated area are simulated corrosion grounding electrodes. The simulated tower is connected to the simulated grounding grid through a grounding down conductor. The monitoring device is connected to the simulated tower through a current injection line and to the simulated grounding grid through a voltage measurement line.

[0006] Furthermore, the simulated corrosion grounding electrode is connected to the simulated grounding grid using a snap-fit ​​method.

[0007] Furthermore, the horizontal and vertical grounding electrodes are made of galvanized steel.

[0008] Furthermore, the simulated grounding grid is filled with a resistance-reducing agent in the first simulated area.

[0009] Furthermore, the simulated grounding grid is buried at a depth of 1 meter underground.

[0010] Furthermore, the monitoring device is installed 3 meters away from the simulated grounding grid.

[0011] Furthermore, the simulated tower is set at a distance of 11 meters from the simulated grounding grid.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention provides a grounding grid corrosion erosion testing and verification device. By setting up a replaceable simulated grounding grid structure, it can simulate the corrosion of different metals in different environments within the grounding grid, providing an effective experimental environment for the corrosion research of grounding grids. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the simulated grounding grid structure provided in an embodiment of this utility model.

[0016] Explanation of icon numbers:

[0017] 1. Horizontal grounding electrode; 2. Vertical grounding electrode; 3. Simulated corrosion grounding electrode; 4. Grounding down conductor; 5. First simulation area; 6. Second simulation area. Detailed Implementation

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0019] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0020] It should be understood that the present invention can be embodied in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Furthermore, the terminology used herein is intended only to describe particular embodiments and is not intended to limit the invention. When used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “compose” and / or “comprising,” when used in this specification, identify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0021] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0022] To fully understand this utility model, a detailed structure will be presented in the following description to illustrate the technical solution proposed by this utility model. Optional embodiments of the invention are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments. (Refer to...) Figure 1 This invention provides a grounding grid corrosion erosion testing and verification device, including a simulated grounding grid, a monitoring device, and a simulated tower. The simulated grounding grid is a three-dimensional mesh structure formed by connecting horizontal grounding electrodes 1, vertical grounding electrodes 2, and simulated corrosion grounding electrodes. The simulated grounding grid is divided into a first simulated area 5 and a second simulated area 6. Any set of horizontal grounding electrodes 1 and vertical grounding electrodes 2 in the first simulated area 5 and the second simulated area 6 are simulated corrosion grounding electrodes. The simulated tower is connected to the simulated grounding grid via a grounding down conductor 4. The monitoring device is connected to the simulated tower via a current injection line and to the simulated grounding grid via a voltage measurement line. The simulated corrosion grounding electrodes are connected to the simulated grounding grid using a snap-fit ​​method. The horizontal grounding electrodes 1 and vertical grounding electrodes 2 are made of galvanized steel. A resistance-reducing agent is embedded in the first simulated area 5 of the simulated grounding grid.

[0023] For example, 15m*15m galvanized steel grounding electrodes are connected to form a three-dimensional mesh structure as a simulated grounding grid. Two sets of horizontal grounding electrodes 1 and vertical grounding electrodes 2 are used as simulated corrosion grounding electrodes, which are set in the simulated grounding grid in a snap-fit ​​manner. One set is set in the first simulated area 5, and the other set is set in the second simulated area 6. Resistance-reducing agent is buried in the first simulated area 5 and the second simulated area 6. The simulated corrosion grounding electrodes can be replaced with grounding metals of different materials and different corrosion conditions for testing and verification.

[0024] The simulated grounding grid is buried 1 meter underground. The monitoring device is installed 3 meters away from the simulated grounding grid. The simulated pole is installed 11 meters away from the simulated grounding grid.

[0025] For example, a simulated pole tower is erected to simulate a real-world scenario; the simulated grounding grid is buried 1 meter underground, and the soil environment can be changed according to the conditions to be verified; a monitoring device is used to monitor the corrosion of the simulated grounding grid.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grounding grid corrosion erosion testing and verification device, characterized in that, The system includes a simulated grounding grid, a monitoring device, and a simulated tower. The simulated grounding grid is a three-dimensional mesh structure formed by connecting horizontal grounding electrodes, vertical grounding electrodes, and simulated corrosion grounding electrodes. The simulated grounding grid is divided into a first simulated area and a second simulated area. Any set of horizontal and vertical grounding electrodes in the first simulated area and any set of horizontal and vertical grounding electrodes in the second simulated area are simulated corrosion grounding electrodes. The simulated tower is connected to the simulated grounding grid via a grounding down conductor. The monitoring device is connected to the simulated tower via a current injection line and to the simulated grounding grid via a voltage measurement line.

2. The grounding grid corrosion erosion testing and verification device according to claim 1, characterized in that, The simulated corrosion grounding electrode is connected to the simulated grounding grid using a snap-fit ​​method.

3. The grounding grid corrosion erosion testing and verification device according to claim 1, characterized in that, The horizontal and vertical grounding electrodes are made of galvanized steel.

4. The grounding grid corrosion erosion testing and verification device according to claim 1, characterized in that, The simulated grounding grid is filled with a resistance-reducing agent in the first simulated area.

5. The grounding grid corrosion erosion testing and verification device according to claim 1, characterized in that, The simulated grounding grid is buried 1 meter underground.

6. The grounding grid corrosion erosion testing and verification device according to claim 1, characterized in that, The monitoring device is set at a distance of 3 meters from the simulated grounding grid.

7. The grounding grid corrosion erosion testing and verification device according to claim 1, characterized in that, The simulated tower is set at a distance of 11 meters from the simulated grounding grid.

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