METHOD OF MONITORING OPERATION OF AN ELECTRIC POWER SYSTEM AND MONITORING SYSTEM

In a method, operation of an electric power system which has a power utility automation system (1981-1984, 1991-1994) is monitored. The power utility automation system (1981-1984, 1991-1994) comprises a plurality of electronic devices, such as intelligent electronic devices (IEDs) (1981-1984, 1991-1994) and further communication and control devices communicating via a communication network. From each electronic device a corresponding data model and corresponding technical properties are retrieved and incorporated into configuration information (16). During operation of the electric power system, properties of the electric power system are monitored, the monitored properties comprising monitored data messages which are transmitted by the plurality of electronic devices (1981-1984, 1991-1994) over the communication network. The monitored data messages are evaluated based on the configuration information for the power utility automation system (1981-1984, 1991-1994) to detect a critical event. An alert signal is generated in response to detection of the critical event.