Complex conductor current

Definition according to IEEE 575-2014 Annex D.2.4

Symbol
$I_k$
Unit
A
Formulae
$-0.5+\frac{j \sqrt{3}}{2}$phase 1
$1+1j{\cdot}0$phase 2
$-0.5-\frac{j \sqrt{3}}{2}$phase 3