Electrical stations real-time monitoring using combined protection and control systems

The paper describes medium voltage electrical stations in which there is going to be implemented an automated monitoring system formed of local data acquisition, protection and control equipments mounted at the level of each cell within the electrical stations. This monitoring system is based on software packages for data acquisition, storing, data transmission and processing, monitoring and analysis. Tasks entailing the protection of operating plant, supervision of the system, detection and provision of measured values and messages for cases of operation, recording and evaluating measured values and messages for disturbances, control and locking functions as well as various possibilities of communication are to be mentioned here as being of great importance. In this way, the system is to help the human factor in taking optimal decisions in monitoring the electrical stations, by offering adequate information in a specific format. The internal modular set-up of hardware and software permits flexible inclusion of extensions and customers requirements according to needs.