Arrangement structure of transformer substation grounding grid

A substation grounding grid and layout structure technology, applied in the electric power field, can solve the problems of inability to meet lightning protection requirements, cumbersome construction process, large resistance of the grounding grid, etc., and achieve the effects of flexible use, increased effective cross-sectional area, and firm fixation

Inactive Publication Date: 2019-07-05
内蒙古能源规划设计研究院有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a substation grounding grid layout structure to solve the problems in the above-mentioned prior art that the grounding grid resistance is too large, cannot meet the lightning protection requirements, and the construction process is cumbersome, time-consuming and labor-intensive.

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  • Arrangement structure of transformer substation grounding grid
  • Arrangement structure of transformer substation grounding grid
  • Arrangement structure of transformer substation grounding grid

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Embodiment Construction

[0051] Preferred embodiments of the invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the invention, and are not intended to limit the protection scope of the invention.

[0052] It should be noted that, in the description of the invention, terms such as "upper", "lower", "left", "right", "inner", "outer" and other indicated directions or positional relationships are based on the terms shown in the accompanying drawings. Orientation or positional relationship, which is only for convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the invention.

[0053] In addition, it should be noted that, in the description of the invention, unless otherwise clearly stipulated an...

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Abstract

The invention provides an arrangement structure of a transformer substation grounding grid. The structure comprises a movable grounding body used for guiding a current into the ground, fixed groundingbodies used for current guiding and fixing of the movable grounding body, connection buckles used for connecting the fixed connection bodies and the movable grounding body, and grounding down conductors arranged at one end of the movable grounding body, wherein the grounding down conductors are connected with the electrical device of a transformer substation for current guiding of the electricaldevice. In the arrangement structure of the transformer substation grounding grid, the fixed grounding bodies are enlarged from inside to outside until the area of the grounding grid is the same as the area of the transformer substation, corners of a fixed grounding body are in fit contact with the sides of the larger fixed grounding body so as to increase the effective sectional area of the grounding body, correspondingly reduce the contact resistance and improve the diversion efficiency.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to an arrangement structure of a substation grounding grid. Background technique [0002] In recent years, most of the accidents caused by lightning strikes in many substations in China are related to the unqualified grounding resistance of the grounding grid. The grounding grid plays the role of working grounding and protective grounding. The required level causes damage to the equipment. At present, the grounding device of the transmission line tower includes a grounding body and a grounding downconductor. The grounding body is also called a grounding electrode, which refers to a metal conductor buried in the ground and directly in contact with the soil. earth leakage current. The grounding down conductor is a wire used to connect the lightning conductor and the grounding body. Its function is to conduct the lightning current on the lightning conductor and flow into the g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/66H02B5/01
CPCH01R4/66H02B5/01
Inventor 毕书阳秦瑞兵潘小乐吉嘉董雨昕
Owner 内蒙古能源规划设计研究院有限公司
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