A power state of any point of a power system is estimated with high accuracy to appropriately perform monitoring of the state of the entire power system. A power system state estimation device is provided which includes a power system data database which h...

Aspects of state estimation for cooperative electrical grids are disclosed. State estimation of a local electrical grid can be based on a local grid model and local electrical grid information. The local state estimation can reflect interactions and interc...

A device for detecting an islanding condition in an electricity distribution network, comprising means for receiving (442) a signal of the electricity distribution network, means for determining (412) an islanding condition based on the received signal. Th...

A device for detecting an islanding condition in an electricity distribution network. The device comprises means for concurrently monitoring an islanding condition and a network event condition in the electricity distribution network, means for detecting a...

Electrical power supply system for actuators (2.1-2.n) in drive units, especially electromagnetically activated actuators of a gear unit with a circuit arrangement. The power resistance of the individual supply lines and the earth return line are determine...