Reactor Regulating System

Question 1

What is the purpose of the Reactor regulating system?

Answer 1

Manipulate control rod position to maintain average RCS temperature close to set point

Question 2

How is first stage turbine pressure used in the reactor regulating system?

Answer 2

First Stage Turbine Pressure is the term TLI, which is used to determine what power level the reactor is at
That power level is then used to determine what the average RCS temperature should be (Tref)

Question 3

Automatic Motion Inhibit (AMI)

Answer 3

Stops all automatic motion of control rods

>5% deviation of temperature, TLI or power

Question 4

Automatic Withdrawal Prohibit (AWP)

Answer 4

Stops all automatic withdrawal of control rods
Rods can still be inserted
+6 degree F
T-Cold = > 575 degree F

Question 5

CEA Withdrawal Prohibit (CWP)

Answer 5

Rods cannot be withdrawn manually or automatically
High Pressurizer Pressure
Low DNBR
High LPD

Question 6

Which system generates a CWP Signal?

Answer 6

Core Protection Calculators

Question 7

What is the purpose of the Control Element Drive Mechanism Control System?

Answer 7

Move Control Rods into the Reactor Core

Question 8

What happens if lost one motor-generator sets during normal operation?

Answer 8

Nothing because the other motor-generator set is already running