An easy-to-maintain lightning arrester grounding device

Abstract

The invention discloses an easy-to-maintain earthing device of a lightning arrester, comprising an earthing rod and a coil. The earthing rod has a lower end in a tapered structure and is vertically inserted in the ground. The earthing rod is laterally provided with a sliding sleeve. The lower end of the sliding sleeve is fixed on the ground. The sliding sleeve is in a cylindrical structure and internally and slidably connected with an impact bar, of which the one end away from the earthing rod is fixedly provided with a permanent magnet. The coil is located on the side of the permanent magnetaway from the earthing rod, and the one end of the coil is grounded using a wire. The easy-to-maintain earthing device of a lightning arrester has the advantages as follows: in the invention, whetherthe earthing rod needs to be maintained can be determined according to the action of the permanent magnet only by injecting high-frequency current, meanwhile when the earthing rod is maintained to bewell grounded by an annular blade, the permanent magnet automatically stops the action, thus determining the fact that the maintenance is completed. Therefore the present invention provides a maintenance earthing device of a lightning arrester with extremely simple operation.

Description

technical field [0001] The invention relates to the technical field of power facilities, in particular to a grounding device for an easy-to-maintain lightning arrester. Background technique [0002] For the current lightning arrester grounding device, a fixed metal rod is generally used, generally made of copper rod, iron rod or alloy rod, which is directly inserted into the ground, and its upper end is connected to the lightning arrester. Due to the harsh underground environment, it is easy to oxidize the surface of the grounding rod and increase the grounding resistance. If this problem is not dealt with in time, the arrester will not be able to protect the electrical equipment normally when a lightning strike occurs. However, the current grounding rod is basically just a fixed homogeneous metal rod. After oxidation, it must be pulled out for repair, or directly replaced with a new grounding rod, and the maintenance cost is relatively high. [0003] After searching, the C...

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Problems solved by technology

[0004] The above-mentioned authorization documents put forward a good solution to the problem of lightning striking the lightning arrester, but in real life, more lightning rods do not produce lightning protection effects by attracting lightning to the lightning rod, but by keeping the lightning rod connected to the ground in the cloud layer The medium tip discharges, and then neutralizes the charge in the air to produce a lightning protection effect, so the above authorization documents cannot be well applied to more lightning arresters in existing life

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