125V DC

Question 1

Batteries

Answer 1

6 Batteries
- maintain power to DC bus
-two hour supply w/o chargers

Batteries 1-4 Vital
Batteries 5-6 Non-vital

Batteries 1,3,5:
East switchgear
Batteries 2 & 4:
West switchgear
Battery 6:
TB 38’ NW corner

Question 2

480V AC Supplies

Answer 2

provide power to battery chargers

Question 3

Battery Chargers

Answer 3

6 chargers, 3 swing chargers

provides power to DC bus and keeps batteries fully charged

Question 4

Distribution Switchboard

Answer 4

provide 125V DC to DC loads. Low voltage air circuit breakers, molded case circuit breakers, or fuses

freestanding, floor mounted ventilated steel cabinets

Located in emergency switch gear rooms or CR