A tower grounding device

Abstract

The invention provides a tower grounding device, which comprises first connecting beams, second connecting beams, grounding plates and grounding divergent balls, wherein a plurality of first connecting beams are arranged, the first connecting beams are connected end to end to form a closed ring in an enclosing manner, the junctions of the first connecting beams are provided with the second connecting beams, one end of each second connecting beam is located inside the closed ring, the other end is located outside the closed ring, the end, which is located inside the closed ring, of each secondconnecting beam is provided with the connecting plate, the end, which is located outside the closed ring, of each second connecting beam is provided with the grounding divergent ball, and the second connecting beams are arranged in a mode of forming a certain angle with the plane in which the closed ring is located. The second connecting beams are arranged in a mode of forming a certain angle withthe plane in which the closed ring formed by the first connecting beams is located, so that the second connecting beams are inclined downward, and the lightning guiding performance of the grounding device can be improved. The second connecting beams obliquely extend downward from the inner side of the closed ring to the outer side of the closed ring and are arranged in a radial pattern, thereby increasing the effective cross-sectional area of the grounding device, and improving the lightning protection efficiency of the grounding device.

Description

technical field [0001] The invention belongs to the technical field of power transmission line construction, and in particular relates to a pole tower grounding device. Background technique [0002] With the continuous increase of power transmission capacity of the power grid, when the transmission line fails, the magnitude of the short-circuit current is also increasing. Insulator short to ground fault. [0003] At present, the grounding device of the transmission line tower includes a grounding body and a grounding downconductor. The grounding body, also called the grounding electrode, refers to a metal conductor buried in the ground and directly in contact with the soil to discharge current to the earth. 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 ground through the grounding body. It is an important part of the transmi...

AI Technical Summary

Problems solved by technology

[0005] 1. The structure of the grounding equipment is simple, the form is solidified, and the lightning protection effect is poor;

[0006] 2. The contact area between the grounding electrode and the soil of the grounding equipment is small, which cannot meet the requirements of large current discharge to the ground;

[0007] 3. The grounding device cannot collect the leakage generated when lightning strikes, the efficiency of lightning protection and leakage is low, and there are certain safety hazards

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