Mitigação dos disparos na linha de alta tensão de 110kv CL4 (Infulene-Corrumana)

Abstract

This work consists of mitigating tripping on the 110kv CL4 high voltage line (Infulene-Corrumana). The guard cable was the solution found because it allows the conductor cables to be protected against the direct impact of atmospheric discharges, reducing the number of disconnections caused by atmospheric overvoltages. The sizing of the guard cable takes into account mechanical calculations and the stability of the supports. In this context, this work discusses issues relating to the mechanical calculations of the OPGW cable, the stability of the supports that will allow the OPGW guard cable to be laid, since the supports were designed without taking into account the laying of the guard cable, the CL4 risk assessment. In this circumstance, the application of the proposed methodology reduces the cost of the works and the possibility of phase-to-ground short-circuits caused by atmospheric discharges. There is also an approach to the impacts that this type of project has on the environment in which it is located, as well as prevention and minimization measures.(TRADUÇAO NOSSA)