Mathematical Modeling of Arc Faults in Compensated Distribution Networks

Automation of calculations of power transformers windings parameters taking into account the position of the voltage regulator

“…For calculation of short circuits in a circuit with power transformer with a voltage regulator device [1][2][3][4][5][6][7][8], the well-known method described in [9] and [10] uses assumptions, according to which transformer resistances are calculated only for the average and limiting taps of the voltage regulator. This simplification leads to a significant error in calculation of currents during short circuits, which unjustifiably increases the unbalance of the differential protection of power transformer and reduces the sensitivity of the current relay protection and automation (RPA).…”