Resumen
El objetivo de este trabajo fue diagnosticar fallas en motores de inducción con rotor de tipo jaula de ardilla durante el transitorio de arranque, mediante el análisis de la señal de corriente del estator. Para ello, se modelaron motores de baja y media tensión en Simulink, utilizando MATLAB. Previamente, la falla por bajo aislamiento fue diagnosticada mediante prueba estática. Se demostró que, durante el transitorio de arranque, la falla de bajo aislamiento se manifiesta a través de un análisis de wavelet Daubechies de nivel 8 aplicado a la señal de corriente. La falla se evidenció en los niveles de detalle 1, 2, 5, 6, 7 y 8, tanto en motores de baja tensión como en motores de media tensión.
Citas
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