The problems of determining the time of events occurrence in technological information systems of distribution electrical networks
The paper considers the organization of maintaining single time in automated systems of energy facilities. These facilities provide technological events recording as well as processing and analyzing of incoming energy data for electric power distribution management and commercial and technical accounting. Such facilities as step down substations distributed in the region and dispatching centers of layered control system are among important and sophisticated elements of any utility. The features of time synchronization in heterogeneous systems, ways of single time distribution over the communication channels and collection of information about connection between time and events occurring in technological equipment are considered.