Test method for direct current melting ice of wire and ground wire combination based on fully insulated ground wire technology

Abstract

The invention discloses a lead wire and ground wire combined DC deicing test method based on the all-insulation ground wire technology. The method comprises establishing a set of DC deicing device; by adjusting the series-parallel connection relationship of a DC output end and through connection of lead wires and a ground wire, performing deicing test on an A-phase lead wire, a B-phase lead wire, a C-phase lead wire and the insulating ground wire. The lead wire and ground wire combined DC deicing test method based on the all-insulation ground wire technology has the advantages that the lead wire and ground wire combined DC deicing test method is simple in operation and easy to implement; generated DC voltage can be regulated through a voltage regulator and meanwhile can be combined in series and parallel to effectively achieve wide-range adjustment of deicing voltage; a flexible deicing knife switch combination can meet any random deicing requirements of three-phase lead wires and two ground wires; the deicing requirements of the lead wires and the ground wire can be met simultaneously through one single set of DC deicing device, so that the cost for transmission line deicing study can be saved.

Description

technical field [0001] The invention belongs to the technical field of electrical engineering, and in particular relates to a combined direct current ice-melting test method based on a fully insulated ground wire technology. Background technique [0002] Ice and snow disasters are serious in some provinces in southern my country, which has a huge impact on the safe operation of transmission lines. The current melting ice method of transmission line is one of the most direct, most effective, safest and most economical means to deal with ice disasters. DC ice melting does not need to provide reactive current for the reactive component of the line, thus greatly improving the efficiency and economy of transmission line ice melting, making this technology more and more widely used in transmission line anti-icing. [0003] At present, for the conductors of transmission lines, the DC deicing technology has been relatively mature. However, the ground wire of the transmission line ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is, aiming at the problem that the existing conductor DC deicing device cannot be directly applied to ground conductor deicing, proposes a conductor ground conductor combined DC deicing test method based on fully insulated ground conductor technology, using the method, by flexibly adjusting the wiring mode, it can not only melt the ice of the conductor, but also realize the melting of the ground wire, and save the investment in the construction of the ice melting test system of the transmission line

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