the maximum efficiency of a transformer is at which power factor?

electrician

• Venky
• 2830 Views
• 2 Answers

• at unit power factor ( upf) only

  • Muna
  • 16 Nov
  • 0 Comment

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• Condition for maximum efficiency of transformer can be obtained by differentiating the efficiency equation of the transformer with respect to the load factor (dη/dα).br /where η is the efficiency of the transformerbr /          α is the load factor = (operating load of transformer/ full load of transformer)br /By solving the equations it will be obtained such that Maximum efficiency of transformer is atbr /                 P core loss = α2 x P copper lossbr /From the above equation it can be defined as the maximum efficiency of the transformer occurs at a load factor (α) at which the iron losses is equal to copper losses.

  • Shruti
  • 26 Sep
  • 0 Comment

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