Factor $\alpha$ (IEC 61914)

According to IEC 61914 in case of a 3- or 2-pole short circuit.

Symbol
$\alpha_k$
Formulas
$\frac{\sqrt{3}}{2}$
Choices
$N_c$Value
2 cables1.0
3 cables1.0 (phase-to-phase fault)
0.866 (three-phase symmetrical fault)