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A 60 Hz 20kVA 8000/240 Vrms transformer has the equivalent circuit parameters given in the table below;

Primary resistance econdary resistance Primary leakage reactance Secondary leakage reactance Magnetizing reactance Ri R2 X1 =

a) Find the magnitude of the input voltage in (V):

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Answer #1

Given data, in f = 60tyle S: 20 x103 VA M = 8000 V Vo240V K . . . . 0.03 - - 0.43 ) 2000 R = 152, R₂ = 0.022 x, awly = 120 1To get MA we need to find 0.02 10.03)? 0.02 0.0009 = 22.222 TERASE 22,2223 0.1 . : 0.15 0.0009 .. .... . ..166.66 6 exåz 16P1 = Da = stos 54 Pa = 20x103 -C04(0.8) n . 240. . Ig : 83. 3334-36.87? - ... Pog - K Da : 0.03. ® 83,333 (-36.87 Pa: 2.51VA. Talhere, - 5 P. Relixo)/e.+jxo) Po 8299.867 (2.02 20(200130)/(2001) 20) T. 0.2292 L_39. go!A7 9,68 +P to Subesti turtingvp = [68299.867 (2009)+ (2.7127-40-86). (15+; 120) Vp : 8553. 769 ( 3.48v

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