Unisin 3100 Broad Spectrum Harmonic Filter Impacts of VFD and UPS Application Note May 2003 AN402.1 BACKGROUND VFD (Variable Frequency Drives) or VSD (Variable Speed Drives) and UPS (Uninterrupted Power Supplies) have been widely utilized in industry to achieve greater reliability and control. Unfor...

Unisin2100 Neutral Current Filter Benefits for Radar Systems Application Note September 2003 AN405.1 BACKGROUND For electronic equipment and devices that are susceptible to malfunction caused by harmonic distortion, IEEE Standard 519 states that AC sources shall have no more than 5% total harmonic v...

Unisin 3100 Broad Spectrum Harmonic Filter Avoidance of Generator Derating Application Note May 2003 AN403.1 BACKGROUND It is well known that harmonics have significant adverse effects on generator performance. In addition to numerous publications on this subject, IEEE-519 has a section entitled Eff...

Unisin 2100 Neutral Current Filter Benefits for Gaming Machines Application Note May 2003 AN404.1 BACKGROUND For electronic equipment and devices that are susceptible to malfunction caused by harmonic distortion, IEEE Standard 519 states that AC sources shall have no more than 5% total harmonic volt...

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