Q3/A) A 1000-VA 230/115-V transformer has been tested to determine its equivalent circunt. The results of the tests are shown below. Open-circuit test Voc-230 V Short-circuit test Vse - 19.1 V 18.7 A Pen. 3. ke loc=0.45 A P. P... Poc - 30 W Psc 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 agging. WE

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Q3/A) A 1000-VA 230/115-V transformer has been tested to determine its equivalent
circunt. The results of the tests are shown below.
Open-circuit test
Voc - 230 V
Short-circuit test
Vse 19.1 V
Pressite
loc=0.45 A
1sc8.7 A
P.
Poc 30 W
Pse 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 has been tested to determine its equivalent circunt. The results of the tests are shown below. Open-circuit test Voc - 230 V Short-circuit test Vse 19.1 V Pressite loc=0.45 A 1sc8.7 A P. Poc 30 W Pse 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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