Question

30 III. A 2200- VA, 220/110 volt step down transformer has the following open circuit and short circuit test results as performed on the primary side. Open-circuit test Short-circuit test Voc = 220 V Vsc = 20 V loc = 1.5 A Isc = 1.5 A Poc = 100 W Psc = 20 W Find the equivalent circuit values of resistance and inductance (Shown below) of the transformer referred to the high voltage side (Primary side) of the transformer. $I_p$ $R_{eqp} = R_p + a^2R_s$ $X_{eqp} = X_p + a^2X_s$ $R_c =$ $X_m =$ $R_{eq} =$ $X_{eq} =

          30
III. A 2200- VA, 220/110 volt step down transformer has the following open circuit and short
circuit test results as performed on the primary side.
Open-circuit test
Short-circuit test
Voc = 220 V
Vsc = 20 V
loc = 1.5 A
Isc = 1.5 A
Poc = 100 W
Psc = 20 W
Find the equivalent circuit values of resistance and inductance (Shown below) of the
transformer referred to the high voltage side (Primary side) of the transformer.
$I_p$
$R_{eqp} = R_p + a^2R_s$
$X_{eqp} = X_p + a^2X_s$
$R_c =$
$X_m =$
$R_{eq} =$
$X_{eq} =

30
III. A 2200- VA, 220/110 volt step down transformer has the following open circuit and short
circuit test results as performed on the primary side.
Open-circuit test
Short-circuit test
Voc = 220 V
Vsc = 20 V
loc = 1.5 A
Isc = 1.5 A
Poc = 100 W
Psc = 20 W
Find the equivalent circuit values of resistance and inductance (Shown below) of the
transformer referred to the high voltage side (Primary side) of the transformer.
Ip
Reqp = Rp + a^2Rs
Xeqp = Xp + a^2Xs
Rc =
Xm =
Req =
Xeq =

Added by Pilar J.

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