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

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Understand the Problem

The question is asking for the appropriate current density used in large power transformers with forced cooling, along with multiple choice answers for different ranges of current density values.

Answer

1.5 to 2.5 A/mm²

The final answer is 1.5 to 2.5 A/mm².

Answer for screen readers

The final answer is 1.5 to 2.5 A/mm².

More Information

The optimal current density for large power transformers with forced circulation of oil or water cooling coils is set at 1.5 to 2.5 A/mm² to ensure efficient performance and prevent overheating.

Tips

Avoid confusing different transformer types and their respective cooling methods, as they may require different current densities.

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