engineering recuitment PGCIL Diploma Trainee Mock Test 2024 Electrical Machines Transformer Transformer Tests
The Open Circuit test on a transformer is carried out at rated voltage, usually on low voltage with high voltage side open. What could be the reason behind the test being carried out at rated voltage?
1
To determine the full load copper loss
2
To determine the core loss as the rated flux density is obtained at rated voltage
3
To determine the equivalent resistance
4
To determine the leakage reactance