Aplicação de inversores de frequência para acionamento de motores de indução trifásicos.

Abstract

This work addresses the application of induction electric motors in the industry through starter method motors study used on the market. The electric motors during starting requires values much higher than the limits calculated for their normal operation and may result operational disturbances for the electrical system. The choice of efficient motor starting system ensuring an increased motor life and lower maintenance costs. In the industrial sector, the equipment need to ensure the production plants. This paper presents a case study of an Alumina industry, which consists of any cable reel drive system of a Bauxite Reclaimer. This system has a high failure rate and events of loss of production happened. For this, we analyzed the starting methods appropriate for this application and the chosen method consisting in the upgrade of the drive system using frequency inverters. Afterwards the upgrade has been implemented, resulted in a decrease in maintenance costs, increase cable reel availability and reliability, resulting in the benefits for business production process.