Trips And Setpoint

Question 1

Phase A Causes

Answer 1

Manual
Safety Injection

Question 2

Phase B Causes

Answer 2

Manual
Hi-Hi Containment pressure 2.81 psi on 2/4

Question 3

CVI Causes

Answer 3

Manual (using Phase A or Phase B HS)
Safety Injection
Hi-Rad on Containment Purge RM-130/131
Manual Phase A or Phase B

Hi Radiation (90-102/103) with HS in Refuel

Question 4

ABI Causes

Answer 4

Manual
Phase A
Hi-Temp In Aux supply fan inlet >115F

Partial ABI during refueling activities if RM 102/103 go in to Hi rad

Question 5

CRI causes

Answer 5

Manual
Safety Injection
Hi-Rad in Air intake on RM125/126
Smoke in the Intake

Question 6

FWI Causes

Answer 6

Rx Trip and Lo Tavg-564F on 2/4
Safety injection
Hi-Hi SG level >82.4% on 2/3 on any 1 SG
Valve Vault room flood 4” on 2/3

Question 7

MSIV Closure

Answer 7

Hi-Hi Containment 2.81psig
Lo steam Line pressure 675
Hi steam Line Negative Rate 100psi/50sec

Question 8

SRM Rx trip

Answer 8

10^5 CPs

Question 9

IRM Rx trip

Answer 9

25% PWR

Question 10

Safety Injection Signals

Answer 10

Low PZR Pressure 1870psig 2 of 3 logic (Channels I,II,III)

Hi Containment Pressure 1.5psig 2 of 3 logic (Channels II,III,IV)

Low steamline pressure 675psig 2of 3 Logic on 1 of the SGs

Question 11

Pressurizer Level tree

Answer 11

92% Rx trip
70% Hi alarm
60% normal full load
25% normal no load
17% letdown isolates/ heaters off

Question 12

VCT levels

Answer 12

93% Hi level/ full divert
63% start divert
41% stop makeup
20% start makeup
13% allow CCP suction
7% Realign to RWST

Question 13

Pressurizer Pressure tree