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auto-transformer
GATE Electrical Engineering · Transformers · 1996-2016
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All concepts →2016 PYQ
A single-phase, 2 kVA, 100/200 V transformer is reconnected as an auto-transformer such that its kVA rating is maximum. The new rating, in kVA, is ______.
medium
2015 PYQ
A 200/400 V, 50 Hz, two-winding transformer is rated at 20 kVA. Its windings are connected as an auto-transformer of rating 200/600 V. A resistive load of 12 Ω is connected to the...
easy
2007 PYQ
A single-phase $$50$$ $$kVA,$$ $$250$$ $$V/500V$$ two winding transformer has an efficiency of $$95\% $$ at full load, unity power factor. If it is reconfigured as a $$500V/750V$$...
mediumanswer key
1996 PYQ
Auto-transformer is used in transmission and distribution
easyanswer key