1. COMPLEX POWER The units of apparent and reactive power are Volt-Ampere
inductive
capacitive
Active Power
Reactive Power
Another useful form

2. LEARNING EXAMPLE
Determine the voltage and power factor at the input to the line
inductive
capacitive
inductive
lagging

3. DELTA CONNECTED SOURCES
Convert to an equivalent Y connection
Relationship between
phase and line voltages
Example

4. LEARNING EXAMPLE
Determine line currents and line voltages at the loads
Source is Delta connected.
Convert to equivalent Y
Analyze one phase
Determine the other phases using the balance