SYSTEM FOR PROTECTING CONTACT WITH AC LINE AND DC LINE OF TRANSMISSION LINE

摘要

The present invention relates to a system for preventing line contact in transmission lines and, more particularly, to a system for preventing line contact in transmission lines having an AC line and a DC line in parallel. For transmission lines having an AC line and a DC line in parallel, the present invention detects inductive components contained in the DC line and induced by the AC line, thereby detecting and preventing line contact between the AC line and the DC line, and therefore, protecting the AC line and the DC line. As a result, the present invention can improve the safety of a DC power transmission method; reduces insulation issues, reduces transmission loss, and increases efficiency, which are the advantages of the DC power transmission method; promotes new renewable energy generation; and enables practical system operation.