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Q#1
Transformers
GATE EE 2020
NAT
+1 mark
-0 marks
A single-phase, 4 kVA, 200 V/100 V, 50 ~Hz transformer with laminated CRGO steel core has rated no-load loss of 450 W. When the high-voltage winding is excited with 160 V, 40 Hz sinusoidal AC supply, the no-load losses are found to be 320 W. When the high-voltage winding of the same transformer is supplied from a 100 V, 25 Hz sinusoidal AC source, the no-load losses will be …………… W (rounded off to 2 decimal places).
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| Topic | Questions | Attempted | Correct | |
|---|---|---|---|---|
| Network Analysis | 268 | 0 | 0 | |
| Signals and Systems | 168 | 0 | 0 | |
| Control Systems | 262 | 0 | 0 | |
| Analog Electronics | 186 | 0 | 0 | |
| Digital Electronics | 150 | 0 | 0 | |
| Electrical Machines | 399 | 0 | 0 | |
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| Engineering Mathematics | 236 | 0 | 0 | |
| General Aptitude | 221 | 0 | 0 |
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