9. Three-phase Systems and Circuits

CHAPTER OBJECTIVES

After carefully studying this chapter, you should be able to do the following:

➢State the advantages of three-phase system over single-phase system.

➢Explain how three-phase voltages are generated.

➢Distinguish between a balanced supply and unbalanced supply system.

➢Distinguish between a balanced load and an unbalanced load.

➢Write the relationship between phase and line quantities in a star- and delta-connected system.

➢Distinguish between active power and reactive power.

➢Calculate current, power, and power factor of balanced three-phase loads.

➢Make connection diagram and measure power and power factor in a three-phase balanced and unbalanced load.

➢Convert a star-connected load into ...

Get Network Analysis and Synthesis now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.