ABSTRACT
A short-circuit test on a 150 kVA, 7200-240 V transformer provides the following results:
Primary voltage at 20.8 primary amperes = 208.8 V a. Determine the %Z of the transformer. b. Calculate the ohmic impedance of the transformer in primary and second-
ary terms. c. How much current would ow in the transformer if its secondary would
become shorted during normal operating conditions? (Consider source impedance to be zero.)
3.1 Four boxes represent an AC generator, reactor, resistor, and capacitor and are connected to a source bus XY as shown in Figure P3.1. From the circuit and phasor diagrams, identify each box.
