1. EE4503 Electrical Systems Design
Emergency Power Systems

2. Components for Backup Power
Transfer Switches
Power sources
UPS (battery)
Secondary Power Source
Engine (fuel)
Diesel, Gas, Steam, Water

3. System under Backup Emergency Lighting Systems Fire Protection Systems
Elevator
Etc.

4. Backup Generator

5. Reference Electrical Systems Design: ประสิทธิ์ พิทยพัฒน์
Depend on the area, end-user can connect to the “meter” of the authority in three ways.