23/A) A 1000-VA 230/115-V transformer has been tested to determine its equivalent reunt. The results of the tests are shown below. pen-circuit test Short-circuit test oc-230 V 19.1 V -0.45 A Isc 8.7 A 30 W Pc 42.3 W Il data given were taken from the primary side of the transformer. Find the equivalent circuit of this transformer referred to the low-voltage side of the ansformer. (b) Determine the transformer's efficiency at rated conditions and 0.8 PF

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Q3/A) A 1000-VA 230/115-V transformer bas been tested to determine its equivalent
circun. The results of the tests are shown below.
Open-circuit test Short-circuit test
Foc-230 V
19.1 V
Joc=0.45 A
Isc 8.7 A
Poc= 30 W
P=42.3 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) Determine the transformer's efficiency at rated conditions and 0.8 PF
lagging.
Transcribed Image Text:Q3/A) A 1000-VA 230/115-V transformer bas been tested to determine its equivalent circun. The results of the tests are shown below. Open-circuit test Short-circuit test Foc-230 V 19.1 V Joc=0.45 A Isc 8.7 A Poc= 30 W P=42.3 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) Determine the transformer's efficiency at rated conditions and 0.8 PF lagging.
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