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48V, 20 glade 611 W across Hence, the equivalent resistance/ Reactance are Shord Circuit rest> Voltage ei LV Shorted, restered to HV. 2.3081 22 (48) (208) RE 1.42but 316 617 (20.882 I X z²_R² Х 1815U Rse - 1.4260/ xml |Xse = tj 1.8154 mili ya Reffered to ld V. Open Circuit desh → HV opened , Vollage across LV The equivalent resistance I reaclince die reffered to LV. They has to be reffered to HtV.
240V : 8.41A and 1860 Ro (240) ? 309.7 P 186 IRO 240V so.775 A 309.74 Ixo (5.412-6.7752 : S.35 A X • Bảo : 44.86 u 5.35 RO 309.74 Referred tolu Xo j 44.8611 CS Scanned with CamScanner
we get Reflessing to HV side , we Re: 364,7 (84 12400 20019 نم Ro 3.lou lilly Xo : j0.45 u - Reflessing to hu. b) → Xse : j1.8154 mm V2 V #zu > Rse 1.4264 Xo: 10.45 Ro-3.lou The equivalent diageam referred to HV side > PF:08 Al maximum efficiency Chloss: Fe loss (sonio? Cn loss = 1 x Rse = 2:39 x 1.426 2400 = 619 w Fe loss = 619 w. load at max eld full load, Iron loss Chloss (full load) • Sorios x 619 619 Lood at max eff Is achieved So kVA 50x103 z n = Output Output & Feloss + In loss Sox 103 + 2x619 1 = 97.6% CS Scanned with CamScanner
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