Problem 2

A 1000-VA 230/115-V transformer has been tested to determine its equivalent circuit. The results of the

tests are shown below.

Open-circuit test

(on secondary side)

Voc=115 V

Ioc = 0.11 A

Poc = 3.9 W

Short-circuit test

(on primary side)

Vsc = 17.1 V

Isc = 8.7 A

Psc 38.1 W

Find the equivalent circuit of this transformer referred to the low-voltage side of the transformer.