Vertical-grounding graphite compounded resistance-reducing barrel for electric power grounding grid and construction method of resistance-reducing barrel

Abstract

The invention discloses a vertical-grounding graphite compounded resistance-reducing barrel for an electric power grounding grid. The vertical-grounding graphite compounded resistance-reducing barrel comprises a vertical grounding body and a graphite compounded resistance-reducing barrel which is arranged on the periphery of the vertical grounding body. The graphite compounded resistance-reducing barrel is shaped by at least one shaping ring, and two opposite ends of the graphite compounded resistance-reducing barrel are fastened to the vertical grounding body through antirot connecting lines. According to the vertical-grounding graphite compounded resistance-reducing barrel for the electric power grounding grid and the construction method of the resistance-reducing barrel, resistance reducing efficiency can be improved, technical problems of poor long acting, corrosion of the grounding body, pollution of soil and underground water source are solved, grounding resistance value of the electric power grounding grid can be reduced effectively, and operational safety and stability of electric equipment is maintained. The vertical-grounding graphite compounded resistance-reducing barrel is of simple structure, easy to construct and favorable for controlling of cost.

Description

technical field [0001] The invention relates to the field of electric power systems, in particular to a graphite composite drag-reducing cylinder used for vertical grounding of electric power grounding grids and a construction method thereof. Background technique [0002] current technology Among them, the power system grounding grid is an important basic power facility to realize lightning protection and working grounding of power equipment. The tower grounding network of power system transmission line can effectively dissipate lightning current and short-circuit fault current, and is an important lightning protection means and infrastructure to reduce flashover accidents of transmission line tower insulators. The grounding grid of power generation and substations is an important means to realize the working grounding and overvoltage protection of large power equipment. Regardless of whether it is the transmission line tower grounding grid or the power generation and subs...

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Problems solved by technology

[0005] this invention The technical problem to be solved is to provide a graphite composite drag-reducing cylinder for vertical grounding of power grounding grids and its construction method, which can improve the efficiency of drag-reducing, solve the problems of poor long-term resistance-reducing performance, easily corroded grounding bodies, and polluted soil and groundwater sources. Technical problems can effectively reduce the grounding resistance value of the power system grounding grid and maintain the safe and stable operation of power equipment; the structure is simplified, which is convenient for construction and helps control costs

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