2.31. Open-circuit and short-circuit tests are performed on a 10-kVA, 220-V/110-V, 60-Hz transformer . Both tests are performed with instrumentation on the high-voltage side, and the following data are obtained:
open-circuit test: input power, 500 W; input voltage, 220 V; input current, 3.16 A short-circuit test: input power, 400 W; input voltage, 65 V; input current, 10 A
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Determine. the parameters of the approximate equivalent circuit referred to the (a) primary and (b)
X2 (b) RC = 24.2 n,xm = 25 n,R2 + (R,la2) = 1 n,X 2 + (X/a2) = 1.28 n