Ajustes de protecciones térmicas de motores de media tensión, información necesaria

Thermal protection settings for medium voltage motors, necessary information

Authors

  • Antonio Martínez García Universidad Tecnológica de la Habana, José Antonio Echeverría, La Habana
  • Miriam Vilaragut Llanes Universidad Tecnológica de La Habana, La Habana
  • Osmel Pérez Baluja Transilvania University of Brasov
  • Lenyer Padrón Suárez Empresa de Fuentes Renovables de Energía, UNE, La Habana
  • Orlys Torres Breffe Universidad Tecnológica de la Habana “José Antonio Echeverría”, CUJAE
  • Conrado Sabino Toscano Silva Empresa de Fuentes Renovables de Energía, UNE, La Habana

Abstract

Medium voltage motors must be protected more rigorously than low voltage motors considering that they take longer to transfer the heat generated in their windings to the environment. It is essential to have the following minimum information: stator damage curve under normal working conditions, hot and cold locked rotor tests of the motor, results of vacuum and short circuit tests, type of load on the motor shaft to evaluate the heating of the engine during its acceleration at start-up, especially in the case of heavy starting. In many cases it turns out that users do not have the information related above and the problem to be solved is how to proceed to estimate thermal protection in the event that this information is not available? This work proposes the steps to follow when this situation arises.

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Published

2024-03-26

Issue

Vol. 45 No. 1 (2024): Ingeniería Energética

Section

Artículos

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