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Electrical Technology, Vol2: Machines and Measurements, 1/e by S. P. Bali

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37

Three-Phase Transformers

OBJECTIVES

In this chapter you will learn about:

  • Understand the unique advantages that polyphase circuits possess
  • Understand balanced polyphase voltages
  • Understand the difference between a bank of three identical single-phase transformers and polyphase transformers having semi windings on a connective
  • Learn to solve simple problems on the per unit system
  • Learn to raise or lower the voltage with a bank of single-phase transformers connected in three-phase arrangements
  • Understand the techniques used in paralleling three-phase transformers
  • Learn to solve simple problems on the above topics
Image

Three-phase transformers ...

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