EE4503 Electrical Systems Design Emergency Power Systems
Components for Backup Power Transfer Switches Power sources UPS (battery) Secondary Power Source Engine (fuel) Diesel, Gas, Steam, Water
System under Backup Emergency Lighting Systems Fire Protection Systems Elevator Etc.
Backup Generator http://www.finebergresearch.com/pdf/Alyeska%20Brochure%200509.pdf
Reference Electrical Systems Design: ประสิทธิ์ พิทยพัฒน์ Depend on the area, end-user can connect to the “meter” of the authority in three ways.