Schaffner USA has recently published an 8-page, full-color White Paper discussing Harmonic Filtering in Variable Speed Drives.  VFDs are popular in many industries and applications, yet they inject problematic harmonic distortion into electrical systems, resulting in motor overheating, nuisance circuit breaker tripping, higher operating temperatures in transformers, eddy current losses, anomalies and unexplained malfunctions in sensitive electronics equipment, and more.  Issues range from a “simple” nuisance to catastrophic loss.  Further, production downtime, repair cost and revenue shortfall, may result in reduced company profits.  Harmonic filtering helps to eliminate many of these concerns, enhance efficiency and improve overall plant performance.  These new site enhancements make it easier for viewers to determine when problems are occurring and points them towards remedies. This informative paper details single tuned and multi-tuned passive harmonic filters and the effects that they have on specific circuits and overall electrical systems.  Copies of the White Paper are available by request.

Schaffner EMC, with US operations headquartered in Edison, NJ, is part of The Schaffner Group – a worldwide leader in the fields of electro-magnetic compatibility (EMC), power quality (PQ) and engineered transformers.  From a global innovation and development center in Luterbach, Switzerland, the company develops leading edge products which are manufactured in facilities worldwide.  Their PQ product line includes active and passive harmonic filters, along with sine wave filters, which allow the efficient and reliable operation of electrical and electronic equipment and systems.  For additional information visit, write to them at Schaffner EMC Inc., 52 Mayfield Avenue, Edison, NJ, 08837, or call (800) 367-5566 ext 276.