The impact of EMI on the Industrial sector can lead the machinery to malfunction or permanently damage. Most electronic devices generate high frequency electromagnetic noise, degrading the quality of power transmissions. Modern VFDs using IGBT switches for motor frequency control are prone to much higher EMI being generated because of high frequency transistor switching. High dV/dt rates at the motor connected to the VFD result in radiated electric fields and voltage spikes conducted along the motor cabling.
EMIS filters are a specialized solution for the industrial EMI noise specifically designed to enhance the system performance and reduce the noise by cancelling or grounding the line. EMI Filters are mandatorily used in power supplies to prevent malfunction and damage to nearby equipment.