Reference no: EM13279050
A set of open circuit test and short circuit test have been performed on a transformer. A supply voltage of 480 V is applied to the primary side of the transformer and the following data is obtained for the open circuit test.
Poc 720 W
Voc 240 V
Io 9.7 A
Then, the following set of data is taken for a short circuit test.
Psc 750 W
Vsc 37.2 V
Isc 51.9 A
Later, the high side of the transformer is connected to a multi-meter with the low side left open. The meter registers a reading of 0.11 ohms. Afterwards, the multi-meter is connected to the low side with the high side left open. The meter registers a reading of 0.029 ohms.
It is generally assumed that for this 2:1 transformer that the reactance at both sides contributes equally to the equivalent reactance of the transformer.
Find the following parameters for open circuit test:
1. The core loss resistance
2. The magnetizing reactance
3. The power factor
Find the following parameters for short circuit test:
4. The equivalent impedance
5. The leakage resistance
6. The leakage reactance
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