DC Distribution System

Question 1

State the functions of the DC Distribution System.

Answer 1

Supplies 125 VDC to various control and instrumentation circuits, and to DC operated equipment during normal, abnormal and emergency conditions.

Question 2

State the purpose of the Battery Chargers

Answer 2

The Battery Chargers convert 480 VAC to 125 VDC to supply DC bus loads and maintain the associated battery charged.

Question 3

State the purpose of the Batteries

Answer 3

The batteries provide a backup power source for DC loads when battery chargers are NOT available.

Question 4

State the purpose of the DC Buses

Answer 4

The DC Buses provide common points for connecting DC power to the various DC loads.