Question

Problem 1 Part A A balanced three-phase circuit has the following characteristics: • Y-Y connected; • The line voltage at the source, Vab, is 90/32-60° V: • The phase sequence is positive • The line impedance is 3+2/; . The load impedance is 37–328 /¢. Calculate the phase voltage at the a terminal of the source. Express your answer in volts to three significant figures. Enter your answer using angle notation. Express argument in degrees. View Available Hints) VAX vec ? Van = Submit Part B Calculate the line current in the a-phase. Express your answer in amperes to three significant figures. Enter your answer using angle notation. Express argument in degrees. IV.AZ ? IA- A Submit Request Answer

Answer 1

phase voltage/ in currenr line voltage s/ant aufgenas vans Velo Vaba 83 8p L30° Von 7 Ve L- laº V bc : 8 rab L-120 Vcna vol + 120 ve a = Vad L41202 Same line as gaz van/2y currears Ios PaL-120 Ic & Taltian Vab = 13 Vol 30 ao & too V up lio Vp> 90 L-60 E90 L-96 IL 30° van a Uploa 901-90 CS Scannedovith CamScanner

ZL = 311a Ian 4 3.7 -2.981 Vans qol-qo Tant I 1.8 L-186.86 A qolaqo (3+ja )+(37+28) VAR s Vab qa83 L-60 CS Scanned with CamScanner