Courses›Power Systems
Intermediate

Three-Phase Systems

Three-phase power is how almost all large-scale electricity is generated, transmitted, and used. From industrial motors to commercial buildings, understanding three-phase is essential for anyone moving beyond domestic work.

📚 6 modules🎬 28 lessons⏱ 4h 12min🆓 Free forever

What you'll learn

  • ✓Explain why three-phase systems are used over single-phase
  • ✓Calculate line and phase voltages and currents in star and delta
  • ✓Analyse balanced and unbalanced three-phase loads
  • ✓Understand and calculate three-phase power and power factor
  • ✓Select motor starters for three-phase induction motors
  • ✓Read and produce three-phase wiring diagrams

Prerequisites

  • ·Electrical Fundamentals
  • ·Basic AC circuit knowledge

Course Curriculum

▶
01. Why three-phase? — advantages over single-phase
video8min
▶
02. Generation of three-phase voltages
video9min
▶
03. Phase sequence — L1, L2, L3
video8min
▶
04. Phasor representation of three-phase
video9min
✦
05. Phase fundamentals quiz
quiz8min
0%
0 / 28 lessons
Modules6
Hours4h 12m
LevelIntermediate
CostFree