EGS - Div 3

Question 1

The plant is operating at rated:
• A feedwater failure has resulted in RPV level lowering to 80”
• SOP-6 actions have restored level to the normal band
Which one of the following describes the mode of operation and engine trips associated with the Division III Diesel Generator (2EGS*EG2) following this casualty?

Mode ; Trips 

A. Isochronous ; Normal and Emergency
B. Isochronous ; Emergency Only
C. Parallel ; Normal and Emergency
D. Parallel ; Emergency Only

Answer 1

B. Isochronous ; Emergency Only

L2-108.8” is a valid LOCA signal for Div 3.

Speed Droop is manually adjusted to 40 for Div 3 for when running parallel, when in 0 Speed Droop, the normal standby position, the EDG is running in Isochronous