engineering recuitment GATE EE 2023-24 Test Series Electrical Machines Transformer Transformer on No Load
Consider the following statements regarding the no-load test of the transformer when the test is conducted at rated voltage and reduced frequency (V1 = Vrated and f < frated)
1. The magnetizing current increases
2. The core loss component of no-load current remains the same.
3. No-load power factor increases.
4. Iron losses of the transformer increases.
Which of the above statements are correct?
1
1, 3 and 4
2
1 and 4 only
3
2, 3 and 4
4
2 and 4 only