¿Cuál de los siguientes es un beneficio que se deriva de usar un impulsor de frecuencia ajustable (AFD) con modulación de la magnitud del impulso (PWM) en lugar de un AFD con SCR?
a. Arranque controlado
b. Menos problemas de armónicos y EMI
c. Límite de par motor ajustable
d. Velocidad de funcionamiento ajustable
b. Menos problemas de armónicos y EMI
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