Electricity 3 : 3-phase alternating current the public mains, motors, safety

3 - phase concepts are explained step-by-step, aiming to give the reader ability of electric thinking and methods for analysis and calculations. Formulas and mathematics are explained thoroughly to make also unaccustomed mathematicians to feel comfortable. Most sections have test-yourself exercises. The book ends with a summary of DC and 1-phase theory for rehearsing and as reference.