Anti-icing voltage-sharing plate

Abstract

The invention provides an anti-icing voltage-sharing plate. The anti-icing voltage-sharing plate is composed of a bowl-shaped cover body (1) and an umbrella cover-shaped disk (2), wherein the umbrella cover-shaped disk is provided with center holes. The cover body is fixedly connected with the center holes of the disk (2) through a cover opening of the cover body in a butt joint mode. The disk (2) is provided with an umbrella cover-shaped disk body (21). The edge of The disk body (21) is a circular body (22). Drain holes (23) are formed in the edge of the disk body (21) inside the circular body (22). Lower edged drain holes (24) are formed in the lower surface of the circular body (22). The anti-icing voltage-sharing plate has the advantages that icing coating time can be delayed to more than 10-15 times to increase the icing flashover voltage by 18%-25% in the area which electric transmission line are polluted heavily; rain flashover caused by rain curtains formed by the pollutants of the top of the tower can be avoided; pollution flashover caused by bird droppings can be avoided; thunderstrike flashover voltage can be enhanced; the sizes of the windows of towers and line corridors can be decreased and investment can be saved.

Description

Technical field [0001] The invention belongs to the technical field of electric power engineering, and in particular relates to an anti-icing equalizing plate for delaying the bridging time of icing and icing and increasing the power frequency flashover voltage of icing. Background technique [0002] my country is one of the countries with the most severe icing on transmission lines in the world. Severe icing will lead to a sharp decline in the mechanical and electrical performance of transmission lines, leading to icing accidents. According to incomplete statistics, there have been thousands of large and small icing accidents on transmission lines since 1954. For example, the continuous low-temperature rain and snow that occurred in southern my country in January 2008 caused serious icing of transmission lines, with an average thickness of more than 30mm, causing a large number of transmission lines to have insulator icing flashover trips, seriously affecting the safe operation...

AI Technical Summary

Problems solved by technology

Extending the length of the insulator string requires that the original line must be abolished and then the tower must be re-erected, and the window size of the iron tower and the corridor of the line are required to be significantly increased. The reconstruction cost is high, it is very complicated, and the operation is difficult. It cannot be fully and effectively deployed on the power grid. Therefore, it is difficult to effectively protect the operation safety of the power grid; and the intervening layout is currently only used in lines of 220kV and below. For lines above 500kV using large-tonnage insulators, due to the lack of aerodynamic insulators for flower arrangement, It is still not possible to use an interleaved arrangement to improve ice resistance

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