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Transformers MCQs

Electrical Engineering Objective Questions



267.  Two transformers of identical voltages but of different capacities are operating in parallel. For satisfactory load sharing
Discussion

268.  Supply to one terminal of a delta-wye connected three-phase core type transformer which is on no-load, fails. Assuming magnetic circuit symmetry, voltages on the secondary side will be
Discussion

269.  (a) to provide insulation and cooling
Discussion

270.  Auto-transformer is used in transmission and ditribution
Discussion

271.  The efficiency of a 100 KVA transform is 0.98 at full as well as at half load. For this transformer at full load the copper loss.
Discussion

272.  The magnetising current in a transformer is rich in
Discussion

273.  A 10 kVA, 400 V/200V single phase transformer with 10% impedance draws a steady short circuit line current of
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