The Phenix Technologies model FRA-100 frequency response analysis (FRA) test system is designed to detect winding movements resulting from shipping damage, subjection to low impedance through faults, or general looseness of clamping structures brought on by the normal effects of ageing, in most sizes of distribution and power transformers. The technology used in this highly sophisticated diagnostic tool was developed in the United States by the National Electric Energy Testing, Research and Applications Center (NEETRAC), a center of Georgia Institute of Technology. Phenix Technologies and NEETRAC have teamed together to bring this powerful testing technique to the electric power industry.