Ps

Question 1

P-4(Rx trip breakers open)

Inputs, Setpoints, and Coincidence

Answer 1

Input - Rx trip breakers and Rx trip bypass breakers
Setpoint - open and open
Coincidence - 2/2 and 2/2

Question 2

P-6(SR Trip Block Permissive)

Inputs, Setpoints, and Coincidence

Answer 2

Input - IR NIS
Setpoint - >1e-10Amps
Coincidence - 1/2 Increasing or 2/2 Decreasing

Question 3

P-7(At-Power Trip Permissive)

Inputs, Setpoints, and Coincidence

Answer 3

Inputs - P-10(PR Low Flux Trip Block Permissive) or P-13(Turbine At-Power Trip Permissive)

Setpoints - N/A

Coincidence - N/A

Question 4

P-8(Single Loop Low Flow Permissive)

Inputs, Setpoints, and Coincidence

Answer 4

Input - PR NIS
Setpoint - <40%
Coincidence - 2/4 Increasing or 3/4 Decreasing

Question 5

P-9(Turbine Trip to Rx Trip)

Inputs, Setpoints, and Coincidence

Answer 5

Input - PR NIS
Setpoint - >50%
Coincidence - 2/4 Increasing or 3/4 Decreasing

Question 6

P-10(PR Low Flux Trip Block Permissive)

Inputs, Setpoints, and Coincidence

Answer 6

Input - PR NIS
Setpoint - >10%
Coincidence - 2/4 Increasing or 3/4 Decreasing

Question 7

P-11(Low Pressure SI/SLI Block Permissive)

Inputs, Setpoints, and Coincidence

Answer 7

Input - PZR Pressure
Setpoint - <1985PSIG
Coincidence - 1/3 Increasing or 2/3 Decreasing

Question 8

P-12(Low Tave Steam Dump Permissive)

Inputs, Setpoints, and Coincidence

Answer 8

Input - Tave
Setpoint - <563F
Coincidence - 2/4

Question 9

P-13(Turbine At-Power Trip Permissive)

Inputs, Setpoints, and Coincidence

Answer 9

Input - Impulse/Inlet Pressure
Setpoint - >10%
Coincidence - 1/2

Question 10

P-14(SG HI Level Trip)

Inputs, Setpoints, and Coincidence

Answer 10

Input - SG Level
Setpoint - >87.5%
Coincidence - 2/4 for 1/4 S/Gs

Question 11

P-16(Rx Trip to Turbine Trip)

Inputs, Setpoints, and Coincidence

Answer 11

Input - P-4(Rx Trip Breakers Open) or SSPS
Setpoint - True
Coincidence - N/A

Question 12

P-4(Rx Trip Breakers Open)

Functions(When True)

Answer 12

Turbine Trip
Allows FWI on Low Tave(<574F)
Allow Block and Reset of SI
Closes S/G Blowdown if SR Flux Trip is Blocked

Question 13

P-6(SR Trip Block Permissive)

Functions(When True)

Answer 13

Blocks Rx Trip(Auto Unblock)

SR High Flux Trip

Question 14

P-7(At-Power Trip Permissive)

Functions(When True)

Answer 14

Allows Following Rx Trips:
PZR Low Pressure
PZR High Level
RCS Low Flow
RCP UV/UF

Question 15

P-8(Single Loop Loss of Flow Permissive)

Functions(When True)

Answer 15

Blocks Rx Trip:

RCS Low Flow in any Single Loop

Question 16

P-9(Turbine Trip to Rx Trip)

Functions(When True)

Answer 16

Allows Rx Trip:
Turbine Trip(C-8)

Question 17

P-11(Low Pressure SI/SLI Block Permissive)

Functions(When True)

Answer 17

Allows Blocks:
PZR Low Pressure SI
S/G Low Pressure SI
Allows Closure of SI Accumulator Outlet Valves on Reset(Provides Open signal to valves)

Question 18

P-12(Low Tave Steam Dump Permissive)

Functions(When True)

Answer 18

Blocks Steam Dump operations

Vents air from steam dump operators

Question 19

P-13(Turbine At-Power Trip Permissive)

Functions(When True)

Answer 19

Input to P-7(At-Power Trip Permissive)

Question 20

P-10(PR Low Flux Trip Block Permissive)

Functions(When True)

Answer 20

Allows Block of IR High Flux Rod Stop(C-1)
Allows Block of PR Flux(Low SP) Trip
Backup to P-6(SR Trip Block Permissive)
Removes SR Power
Input to P-7(At-Power Trip Permissive)

Question 21

P-14(S/G HI Level Trip)

Functions(When True)

Answer 21

Trips Main Turbine
Trips SGFWP Turbines
Trips SUFP
FWI on P-4(Rx Trip Breakers Open)

Question 22

P-16(Rx Trip to Turbine Trip)

Functions(When True)

Answer 22

Trips Main Turbine