This is a two-page fact sheet that discusses a success story related to Power Quality (PQ) Tools and Analysis Research at Con Edison. Beginning in late 2004, experts at Con Edison began a project to see if their investment in PQ monitoring could be made to return dividends in another area. The project focused on two key elements. The first involved adapting an impedance/reactance model of the Con Edison distribution system that would allow rapid calculation of fault locations. The second was to develop PQView to automatically calculate a Reactance-to-Fault (RTF) value. The initial results from this effort have been impressive.