According to the method a primary device model represents the primary devices of the switching plant and a topology model the switching plant. In a first step a conduction system function is allocated to a first primary device in the primary device model. ...

The device has an encoder (3), a transmitter (4) and a decoder (5). With the switch closed an auxiliary voltage (U0) from the auxiliary voltage source (2) is applied to the encoder to supply it with energy, the encoder produces a pulse width modulated puls...

The inventive method assesses the stability of an electric power transmission network, where said network comprises a plurality of substations, buses and lines, and a system protection center (8). It comprises the steps of 1. measuring phasor data (9) for ...