Fundamentals of 3-Phase Electricity | What Is 3-Phase Power? -- Part 1

In AC electrical systems, 3-phase power is commonly used, due to the increased power density, efficiency, and operational flexibility compared with single-phase systems. Understanding how 3-phase electricity behaves in balanced and unbalanced systems is fundamentally important for AC electrical systems analysis, operation, and control.

You will learn:

- How 3-phase electricity is traditionally generated

- How 3-phase electricity can be described using vector representations

- The difference between balanced and unbalanced systems

- How balanced systems deliver constant, instantaneous 3-phase power

- How balanced and unbalanced systems affect neutral current