Pruebas en cables subterráneos : Análisis del estado actual de las pruebas de diagnóstico y localización de fallas en cables subterráneos utilizando el Laboratorio Móvil de Cables Centrix 2.0 de la Empresa Eléctrica Quito S.A.

Abstract

This Curricular Integration Work consists of the elaboration of a Technical Guide for the execution of diagnostic and fault location field tests in medium voltage underground cable systems. It describes the test procedures for installation, acceptance and maintenance, as well as the procedure for locating high impedance faults, applied through the Megger Centrix test system installed in the Mobile Cable Laboratory of Empresa Eléctrica Quito. For this purpose, the corresponding international standards IEEE 400.2-2013 and IEC 60229-2007 for the application of diagnostic tests with high voltage DC and AC VLF, and the IEEE 1234-2019 standard for fault location in shielded cable systems are referenced. Which provide standardized test parameters and methodologies, as well as acceptance criteria, evaluation and interpretation of results. In addition, this document considers and describes the safety procedures and the procedures that precede the application of high voltage field tests. It also describes the equipment and the operation of the Centrix test system. Moreover, it includes the application of real field tests. The structure of the Technical Test Guide consists of components such as objectives, equipment, regulations, execution procedures and acceptance or evaluation criteria that allow its proper interpretation and reading, so that the final technician or operator can apply the respective tests, step by step, using Megger test equipment, specifically, the Centrix test system.