Construction method and device for reducing ground resistance of wind driven generator

Abstract

The invention provides a construction method for reducing ground resistance of a wind driven generator and belongs to a lightning protection construction method and device. The construction method for reducing the ground resistance of the wind driven generator is characterized in that by utilizing a reinforcing mesh of a concrete foundation of the wind driven generator, horizontal internal ground rings and horizontal external ground rings are laid in the concrete foundation of the wind driven generator by using hot galvanizing flat steel; a square horizontal ground mesh is laid at the outer side of the concrete foundation of the wind driven generator, and extended horizontal meshes are respectively laid at the left side and the right side of the concrete foundation of the wind driven generator; and meanwhile, concrete ground bodies are used as auxiliary vertical ground electrodes to form a ground mesh of the wind driven generator. The hot galvanizing flat steel on the horizontal internal ground rings and the horizontal external ground rings in the concrete foundation of the wind driven generator and reinforcing steel bars in the concrete foundation are correspondingly and mutually connected by adopting embedded lightning protection wire attaching clamps, and thereby, the use is safe and reliable, the ground resistance of the wind driven generator is effectively reduced to enable the ground resistance of the wind driven generator to meet the design requirements. Moreover, the construction cost is reduced, no pollution is generated to surrounding soil, and the environment is protected.

Description

technical field [0001] The invention belongs to a construction method and device for lightning protection and grounding, in particular to a construction method and device for lightning protection and grounding of a wind power generator. Background technique [0002] Wind energy is a new type of renewable green energy. With the wide application of wind power generation technology, the single unit capacity of wind turbines is increasing, and the corresponding hub height and impeller diameter are increasing. Due to special requirements, wind farms are generally built on mountain tops, isolated islands, beaches and desert wilderness, where the geological conditions are complex. The height and installation position of the wind turbine determine that it is vulnerable to direct lightning strikes. Therefore, an effective grounding protection device must be installed for the wind turbine; according to the requirements of the specification, there are only two Key indicators: the aver...

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Problems solved by technology

However, these methods always have some disadvantages, such as polluting the soil quality, causing damage to the ecological environment, or occupying a large area of ​​land, or the drag reduction effect is not obvious and unstable, which not only increases the amount of engineering, but also increases the construction cost.

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