Mathematics · Electrical Machines
Find the estimated current taken by the primary side if a single-phase transformer with a voltage ratio of 440/110 V takes a no-load current of 5 A at 0.2 power factor lagging and the secondary supplies a current of 120 A at a power factor of 0.8 lagging. Given that cos(41°36') = 0.748.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1√1140.4 A
- 2√1178 A
- 330 A
- 4√1149.4 A✓
Correct answer
√1149.4 A
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