Dive into the fundamentals of 3-phase power systems in this comprehensive tutorial series. Explore the concept of three-phase electricity, its advantages, and practical applications. Learn about balanced voltages, phase sequences, and the differences between Wye and Delta configurations. Master the analysis of Wye-Wye circuits, including neutral voltage calculations and line current determinations. Understand the single-phase equivalent circuit and the relationships between line-to-neutral and line-to-line voltages. Familiarize yourself with essential 3-phase circuit terminology and tackle a variety of Wye-Wye circuit problems to reinforce your understanding and problem-solving skills.