Determine the transformer efficiency at rated conditions

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Reference no: EM13967194

A 2000-VA 230/115-V transformer has been tested to determine its equivalent circuit. The results of the tests are shown below.

Open-circuit test Short-circuit test
VOC = 230 V VSC = 13.2 V
IOC = 0.45 A ISC = 6.0 A
POC = 30 W PSC = 20.1 W

All data given were taken from the primary side of the transformer.

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

(b) Find the transformer's voltage regulation at rated conditions and (1) 0.8 PF lagging, (2) 1.0 PF, (3) 0.8 PF leading.

Reference no: EM13967194

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