Electrical Machine Design

A current density of _____ is used for large power transformers with forced circulation of oil or with water cooling coils.

  • A. 1.5 to 2.5 A/mm²
  • B. 3.5 to 4.5 A/mm²
  • C. 4.0 to 5.0 A/mm²
  • D. 5.4 to 6.2 A/mm²
Answer: Option D.

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