A star-shaped grounding electrode topology with multiple diverging arms
A topology and grounding electrode technology, applied in the field of lightning protection and grounding of power systems, can solve the problems of not being able to truly reflect the lightning protection effect of the grounding device and insufficient impact characteristics, and achieve the effects of avoiding construction difficulties, improving impact characteristics, and being easy to install
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[0017] The following introduces the specific content of the new ground electrode:
[0018] The arrangement of the double diffuser arm star ground electrode is as follows: figure 2 . The specific method is: add three forked diffuser arms to each radiation branch of the star-shaped ground electrode, one end of the forked diffuser arm is connected to the end of the radiation branch, and the other end extends radially.
[0019] In order to reduce the impact grounding resistance of the grounding body, the method of increasing the size or equivalent radius of the grounding body is usually relied on. The present invention achieves the goal by increasing the diffusion channel of the grounding body and increasing the effective length of the grounding body.
[0020] The impact characteristics of the improved star-shaped grounding electrode: such as figure 1 As shown, the common star-shaped grounding electrode has two radial branches, and the multi-scattered arm star-shaped grounding ...
Embodiment approach
[0024] in such as figure 2 , using as figure 1 The electrodes are made of the same material, and the star-shaped grounding electrode R-R1-R2 is welded so that the angle between R and R1 is 135°, and the angle between R1 and R2 is 90°, and the lengths of R, R1, and R2 are a, b, and b respectively . Weld the star electrodes R11-R12-R13 and R21-R22-R23 at the two ends of A and B respectively according to the above standard, and their lengths are c, c, c, c, c, c respectively. The electrode length satisfies the proportional relationship a:b:c=5:2:1.
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