P-10767-2_small (IMAGE) DOE/Idaho National Laboratory Caption As part of the Protective Relay Permissive Communication project, INL researchers also developed and tested the Master State Estimator (picture on top) which is installed at a substation and independently evaluates cyber and physical information and reports the real-time status of a power system’s condition. Credit Chris Morgan, Idaho National Laboratory Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.