Given

$10\times10^3 VA \\ Pf=0.342 \\ P_{apperent}=10kvk \\ \sqrt3V_LI_L=10^4 \\ V_LI_L=\dfrac{10^4}{\sqrt3}=5773.5VA \\ pf=0.342 \emptyset=\cos_{-1}(0.342)$

1. Pf is lending, then

$\hspace{0.5cm}$ $w_1=V_LI_L \cos(30-\emptyset)=5773 \cos(30-70) \\=4422.76watt \\=4.42kw \\ w_2=V_LI_L \cos(30+\emptyset)=-1002.55watt \\ =-1.0025kw$

2. pf is logging, then

$\hspace{0.5cm}$ $w_1=V_LI_L \cos(30+\emptyset)=5773\cos(30+70) \\ =-1.0025kw \\w_2=V_LI_L\cos(30-\emptyset)=4.42kw$