This project has moved. For the latest updates, please go here.


The latest source code for openFLE is now being maintained at

openFLE is an extensible platform for processing event files from disturbance monitoring equipment such as digital fault recorders (DFRs) and power quality monitors.  Based on the waveform data in these files and on user-provided transmission line parameters, openFLE determines the fault type and calculates the line-distance to the fault.  For more information.  See openFLE overview.


This version of openFLE is an extension of work conducted in 2012 for the Electric Power Research Institute (EPRI).  As noted above, additional work to further extend openFLE so that it can be implemented easily within multiple utiliity environments is being maintained at

openFLE includes an open source C# parser for power quality files (IEEE 1159.3-2003).

Last edited Mar 7, 2014 at 5:05 PM by felmendorf, version 28