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Electricity and Electronics for Renewable Energy Technology by Ahmad Hemami

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10Transformers

OBJECTIVES: After studying this chapter, you will be able to

  • Describe the principles of operation of all transformers
  • Define the terms step-up and step-down
  • Select a transformer power rating based on the loads to be powered
  • Understand practical concerns when using transformers
  • Explain the differences and similarities between single-phase and three-phase transformers
  • Understand and use terms employed for transformers
  • Understand the four different configurations for connecting three-phase transformers
  • Calculate efficiency of a transformer based on its daily usage data
  • Explain familiar tests for measuring transformer data
  • Use the data from tests to determine transformer losses

New terms: All-day efficiency, autotransformer, copper ...

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