Q. A current density of _____ is ilsed for large power transformers with forced circulationof oil or with water cooling coils (Solved)

1. 1.5 to 2.5 A/mm2

2. 3.5 to 4.5 A/mm2

3. 4.0 to 5.0 A/mm2

4. 5.4 to 6.2 A/mm2

  • d. 5.4 to 6.2 A/mm2
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