Calculations > Protection > Protection analysis

This function analyses the protection settings, in combination with the possible refusal of operation. The function simulates many short-circuits, of different type and arc resistance, on several locations in the network.

The failure frequency is used to establish the rates of failing objects.

The analysis aims on the primary results for each fault.

During the sequence of events the module analyses:

•switching protections (location and time)

•thermic load of branches (I2t)

•branch currents after the simulation

The module reports unwanted events, like:

•incorrectly switching protections

•failing protections

•protections switching too late

•sustaining short circuit current after events

•non-available nodes after events

•thermic overload before, during and after the events

•branch overload after the events