CEDMCS

Question 1

Describe what will generate an AMI in CEDMCS.

Answer 1

RRS
- 5% TLI deviation
- 5% Reactor power deviation
- 5F Tavg deviation

SBCS
- < 15% reactor power
- < 15% TLI and reactor power is below the lesser of either SBCS availability, or the AMI threshold

Question 2

Describe how an AWP is generated.

Answer 2

Tavg 6F greater than Tref
Tcold > 575F
When there is a SBCS demand signal

Question 3

Describe how a CWP is generated.

Answer 3

Hi PZR pressure pre-trip
Lo DNBR pre-trip
Hi LPD pre-trip
RPCB
CEA mis-aligned