1. Lecture 81 EEE 302 Electrical Networks II Dr. Keith E. Holbert Summer 2001

2. Lecture 82 Single-Phase Three-Wire Circuits Residential circuits are single phase 3-wire circuits: there is a neutral and 2 "hot" phase wires For electric power systems, the phasor voltages and currents are universally specified in terms of effective or rms value VSVS +–+– Z L1 Z L3 +–+– Z L2 VSVS

3. Lecture 83 Class Example Roughly sketch the wiring in your residence in particular including some lights, stereo, hair dryer, and electric cooking range

4. Lecture 84 Electrical Safety Considerations Voltage, current and frequency How about the power quality for the devices Ground Fault Interrupt (GFI) operation (see Example 9.19)

5. Lecture 85 Class Example Combination of Examples 9.18 and 9.20