Análise de procedimentos operacionais para realização de inspeção termográfica e definição de linhas base para conexões em motores de média tensão.

Abstract

Infrared thermography is one of the main techniques used in predictive maintenance and, if properly used, it is a great tool for performing inspections in industrial equipment by detecting defects in its early stages and avoiding unscheduled shutdowns. This paper presents a case of a predictive maintenance, thermography, which from a critical analysis, quantitative and qualitative, enabled assertively an scheduled shutdown of an industrial plant in Camaçari Petrochemical Complex-BA for corrective intervention of an anomaly detected in the electrical connections at the induction motor terminal box power supplied at 4,16kV with 3MW electrical power. This article will also make a comparative analysis between the current procedure used in this plant and the procedures of thermography specialized companies, besides petrochemical and oil and gas industry companies, also involving applicable current standards to thermographic inspections. During the evaluation of the work instruction and execution of thermographic inspection service, the "baseline " temperature has been identified for engine monitoring and will be used for evaluation of similar products in the same industrial plant.