Self-healing intelligent line lightning protection device and lightning protection method thereof

Abstract

The invention provides a self-healing intelligent line lightning protection device and a lightning protection method thereof. The device comprises a lightning arrester composed of an insulated supporting column and a lightning arrester body nearby the insulated supporting column. An upper end of the insulated supporting column is fixedly connected with the upper end of the lightning arrester bodythrough utilization of a holder. The upper end of the insulated supporting column is a high voltage wiring terminal. A lower end of the insulated supporting column is a grounding terminal. The lower end of the insulated supporting column is connected with the lower end of the lightning arrester body through utilization of a release. A discharge gap module is connected between the upper end of theinsulated supporting column and a high voltage line in series. The device and the method are simple in design. Through design of the release, the discharge gap module and the lightning arrester, isolation with a power grid can be automatically carried out under the condition that a fault occurs in the lightning arrester. It is ensured that after the lightning arrester is exploded due to excessively great lightning strike, operation and maintenance staff can carry out live replacement, full line power cut is avoided, and power supply reliability is improved. Through utilization of the release,it is ensured that after the lightning arrester is exploded due to the excessively great lightning strike, the release acts accurately, the lightning arrester exits power grid operation, so a grounding fault does not occur in the line.

Description

technical field [0001] The invention relates to a self-healing intelligent line lightning protection device and a lightning protection method thereof. Background technique [0002] In power outages due to distribution network faults, the proportion of power outages caused by lightning strikes is the largest. Therefore, it is very important to take good lightning protection measures for distribution networks to provide power supply reliability. At present, the common lightning protection measures for lines are mainly to install various types of lightning arresters; but in practice In the application, there are more or less certain potential safety hazards in the lightning arresters currently used. The existing line arrester has the following technical defects: the high-voltage electrode is easily deflected by the wind to cause electrode offset, resulting in low or ineffective lightning protection effect; secondly, the existing line arrester cannot be replaced after a fault; i...

AI Technical Summary

Problems solved by technology

[0003] The present invention improves the above problems, that is, the technical problem to be solved by the present invention is that the installation of various types of lightning arresters on the existing distribution network line lightning protection results in low lightning protection effect, and it is impossible to automatically exit from the power grid after the main body fails due to lightning strikes.

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