A 350 kVA, 200/400 V transformer has 1.2% resistance and 5.7% reactance. Find voltage regulation at rated load and 0.9 PF lagging. Also find…
A 350 kVA, 200/400 V transformer has 1.2% resistance and 5.7% reactance. Find voltage regulation at rated load and 0.9 PF lagging. Also find efficiency for 75% of rated load. Take core loss 3.2 kW.
From the DPDC Assistant Engineer (EEE) October 2025 – Written (BUET) exam, question 4 of 7.
More from this paper
- Previous: For the following circuit, the Q-point is set as V_{CE} = 6\ \text{V} and I_C = 1\ \text{mA} . Given that V_{BE} = 0.7\ \text{V} , V_{CC}…
- Next: A 3-phase, 10-kVA, 400-V, 50-Hz, Y-connected alternator supplies the rated load at 0.8 p.f. lagging. If armature resistance is 0.5 Ω and…
- All questions in DPDC Assistant Engineer (EEE) October 2025 – Written (BUET)