BOP Electrical Distribution (RQ-C-4763)

Question 1

What is the SDG loading sequence

Answer 1

EP UV sensed - Wait 150 seconds
MDS Opens
SDGs start
First SDG to speed closes its breaker
Second SDG synchronizes to first
Breaker to EP closes

Question 2

What loads are the alternate offsite power source (EP) rated to carry

Answer 2

One train of ESF equipment in one unit
One train of safe shutdown equipment in the other unit

Question 3

What loads are the SDGs rated to carry

Answer 3

1 train of RCS inventory control (ESF loads) in a single unit