TCI Transcoil has over 50 years of experience in creating solutions for complex power quality issues. They are a leader in the manufacture of active and passive filters designed to lessen harmonics and improve power quality. TCI offers a wide range of products to support a variety of applications. Constant innovators, TCI products are on the cutting edge. Products include line reactors for VFDs with smaller footprints and tighter tolerances as well as DV/DT motor protection filters.