PHYS245 Electricity and Electronics Syllabus - Classes - Assignments - Laboratory - Resources Class 13: ac Power

Root-Mean-Square Quantities
The Power Factor
  Concept Check: Thinking with Phasors

Complex Power and Power Factor Correction
Detailed Example of Power Factor Corrections

Transformers
Transformers are essential for the economical distribution of ac electrical power. The ready transformation of ac from low voltage to high and back led to the wide acceptance of ac over dc for power distribution near the turn of the century.

Based on SCEN103 pages: Electrical Power Consumption Introduction to Transformers Electrical Power Distribution Electric Power Companies

A transformer is a device having a pair of windings, the primary side and the secondary side, which are flux-linked by a common core.

Transformation of Voltage