QUESTION NO$,1[25$ Marks$]$

A delta$-$connected load is arranged as shown in Figure $1.$ The supply voltage is $400$ V at $50$ Hz $.$ Calculate:

i$.$ The phase currents

ii$.$ The line currents

iii. The total power drawn by the three$-$phase load

iv$.$ The power read by a wattmeter if its current coil was connected in the YELLOW line and its voltage coil was connected across the YELLOW and BLUE lines.

Use $\backslash ($ V$\_\{$R Y$\}\backslash )$ as the reference phasor, and the phase sequence is $\backslash ($ R Y B $\backslash )$ anticlockwise.

$\backslash [$

$(9+6+8+2=25\backslash$text $\{$ marks $\})$

$\backslash ]$