CRL 1-hr: 9/26 Introduction to Uptime Elements Reliability Framework and Asset Management System

El aislamiento estándar de la prueba de tierra, tal como la prueba de aislamiento a tierra, el índice de la polarización, etc. que todo evalúa sólo el área del sistema de aislamiento de tierra-pared entre los conductores y tierra dentro de las ranuras del estator. La contaminación de la bobina, especialmente de la grasa, tiende a terminar en las vueltas de la bobina, bien fuera de la capacidad de pruebas de aislamiento de tierra-pared. En vez de eso, estos tipos de la contaminación de aislamiento requieren las pruebas de MCA de la impedancia y la inductancia compatible. En este caso, los patrones de la impedancia y la inductancia se comparan uno al otro, en un motor ensamblado, para ver si son similares. Si por lo menos una fase de impedancia sigue hacia la inductancia, entonces la bobina es muy probable que tenga un problema de contaminación que necesita ser atendido. Si se tendenciona, este método puede detectar la contaminación de la bobina seis a doce meses antes de que se presente la falla.

Consejo enviado por ALL-TEST Pro, LLC

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