3 -phase transformer

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Advantages/Disadvantages of a Three-Phase Transformer

The advantages and disadvantages of a three-phase transformer are discussed below.

Advantages of a three-phase transformer

  • Needs less space to install and it is easier to install
  • Less weight and reduced size
  • Higher efficiency
  • Low cost
  • Transportation cost is low

Disadvantages of a three-phase transformer

  • The entire unit shuts down in case of fault or loss occurs in any one unit of a transformer as a common core is shared by all three units.
  • Repair costs are higher
  • Cost of spare units are high

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