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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