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VI Starting

Testing of the voltage dependent overcurrent starting function of distance relays

VI Starting tests the voltage dependent overcurrent starting characteristic used in many distance relays. Additionally, it is a perfect tool for many tests on overcurrent and undervoltage functions. For any specified test point, it detects the pick-up value, the drop-off value, and the ratio.

Benefits

Automatic finding of characteristics
Automatic testing according to specified characteristics
Automatic determination of pick-up and drop-off values
Separate characteristics for phase-to-ground and phase-to-phase starting
Intuitive operation with graphical representation of the test
Clear representation of results in tabular and graphical form

Key Features

Easy fault specification with fault type and fault quantities
Generation of realistic test quantities with models for phase-to-ground, two-phase and three–phase faults
Phasor diagram with additional numeric display of the test quantities