Physics · Electrical Machines
In an on-load tap-changing transformer, the tap position is altered:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1While the transformer is energized without interrupting the supply✓
- 2With the supply disconnected to avoid arcing
- 3Only during light-load conditions to reduce losses
- 4Only when the secondary winding is open-circuited
Correct answer
While the transformer is energized without interrupting the supply
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