042270[2015 : 2 Marks, Set-2]2.37 A balanced (positive sequence) three-phaseAC voltage source is connected to abalanced, star connected load through a star-delta transformer as shown in figure. The line-to-line voltage rating is 230 V on the starside, and 115 V on the delta side. If themagnetizing current is neglected andIs = 10020° A, then what is the value onTp in Ampere?: 3www.wa) 50230°(b) 502-30°

042270[2015 : 2 Marks, Set-2]2.37 A balanced (positive sequence) three

1.	042270[2015 : 2 Marks, Set-2]2.37 A balanced (positive sequence) three-phaseAC voltage source is connected to abalanced, star connected load through a star-delta transformer as shown in figure. The line-to-line voltage rating is 230 V on the starside, and 115 V on the delta side. If themagnetizing current is neglected andIs = 10020° A, then what is the value onTp in Ampere?: 3www.wa) 50230°(b) 502-30°
Answer» line to line voltage is given heresoaccording to law we will check it for voltage levelas it will not extend from 240 as its a limitso cos phie= 100/20 = 50and as 180°-120°/2= 30so 50<30°