What are some advantages of a 3-phase transformer over 3 single-phase bank of transformers

Question statement: What are some advantages of a 3-phase transformer over 3 single-phase bank of transformers?

Answer: Some advantages of a 3-phase transformer over 3 single-phase bank of transformers are:

  1. Less space requirement: A 3-phase transformer occupies less space as compared to 3 single-phase transformers
  2. Less cost: Generally a 3-phase transformer will cost less as compared to 3 single-phase transformers
  3. Less weight: The weight of 3-phase transformer is less
  4. Higher efficiency: The overall efficiency is higher

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