Question

I. A balanced three-phase positive sequence wye-connected 60Hz source voltage has line-neutral voltage of V, 1000 V. It is connected to a three- phase wye connected load whose impedance is z 50+j37.7 2 a. Find line currents ia ib, ic and line-line voltages Vab, Vbo Vac b. Find the total complex power delivered to the load. c. Find delta-connected capacitor bank needed to bring the PF to 0.95 (lagging) of system. d. Re-calculate currents la, ib, io with Case c.

Answer 1

bnce syçkrn OOOLD 23205 o 0 1333 ooD 12.0 15.96 L31-016.

-0 ataiau complex Power deteve, ed-the load Sp, 15960 31 Dlb 鴻|- | 150切还7016 15960匹 .016 Se

PARTC when delta comected Capalitcrr bank con ร์ ecked in load 0. apacitor bank with Per.phase caltulation 3 Sa

961831-9 27-36.15 q613-31 - 3 87 36 15 736-1S е с 1629 6 . u ! VAR 2 し1000) = 61.3632. 6 296.4

OC x63632 t when it will tomnet- inclelta fom ARTd) coltul arion. pen phase с.วั IC for per p hase JP

69'46 23.66。.n bylem 1000 Lo VB 69' u 61-23:46| loooとは u3 3.6 lu. 39 1-1a-340 u3 :66
for doubt ask in comment