Overhead ground wire ice melting device

Abstract

The invention discloses an overhead ground wire ice melting device, comprising a mobile power generation device for outputting an alternating current to a rectifying device, and the rectifying device for receiving the alternating current output by the mobile power generation device, converting the alternating current into a direct current, and outputting the direct current through a cable to an ice covered overhead ground wire so as to melt the ice on the overhead ground wire. Through adoption of the overhead ground wire ice melting device, the problem in the prior art that it is difficult to provide power for the ice melting device is solved, and the ice on the ice covered overhead ground wire can be melted simply and effectively.

Description

technical field [0001] The invention relates to the technical field of transmission line maintenance, in particular to an ice-melting device for overhead ground wires. Background technique [0002] Due to environmental pollution, the frequency of extreme weather around the world is increasing, and transmission lines are increasingly threatened by natural disasters. Among them, ice disasters pose the greatest threat to transmission lines among various natural disasters. Ice coating on transmission lines will seriously affect the safe operation of the power grid system, ranging from ice flash accidents to severe ground wire breakage and tower collapse accidents. [0003] Transmission line icing includes conductor icing and overhead ground wire icing. Among them, the hazards caused by the icing of overhead ground wires to transmission lines are mainly divided into two categories: [0004] First, strands and wires of the overhead ground wire are broken under the action of ice ...

AI Technical Summary

Problems solved by technology

The broken ground wire may be suspended in the air or directly connected to the transmission line, which may easily cause the transmission line to discharge to the ground wire or directly short-circuit the fault, making the transmission line unable to transmit power normally

In addition, the disconnection of the overhead ground wire will also cause the imbalance of the mechanical system of the transmission line, which will cause hidden dangers for the tower to tilt or even collapse.

[0005] Second, the sag of the overhead ground wire is too low under the gravity of the ice load

However, this method is difficult to obtain power in mountainous areas where the transmission line is segmented and the transmission line is grounded at multiple points, and it is difficult to construct in severe cold weather, so this method has great limitations.

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