Yaskawa Electric America, Inc. announced the release of its new E7 Harmonic Estimating Tool (E7/HET) software, which is available at no cost as a downloadable file from the company's website,www.yaskawa.com. The new software enables users to estimate and calculate the voltage and current harmonic distortion produced by the company's E7 VFDs on almost any electrical system at the point of common coupling and/or at the drive input terminals.