Iknow the power calculation for three phase delta or star is
p=3VL*IL*PF

(with the three sqaure rooted)
but why is it sqaure rooted and not cube rooted given that there is three coils or three spaces between the coils?or is this used for the time loss between each coil?

also if anyone knows how to express the correct symbol for sqaure rooted would be much appreciated!