DCS Flashcards
On a 10% Manual runback, how much will the Target Load Lower by in U1?
114.9 MW @ 100 MW / min
On a 10% Manual runback, how much will the Target Load Lower by in U2?
121.7MW @ 100 MW / min
On a OP delta T and OT delta T Runback, What will the target load be?
30 MW
What power must we be at for the Loss of Feed Pump Runback to be enabled?
60% Power
How does a Loss of Feedpump Runback respond in U1?
Goes to 625 MW @ 600 MW/min
How does a Loss of Feedpump Runback respond in U2?
Goes to 90% at 1000 MW/min then to
60% @ 140 MW/min (until < 725 MW)
If we get a Power Load Unbalance Runback, what will the Load Target be?
30 MW
and switch to MW OUT
When is a power load unbalance runback armed?
1st stage pressure > 40%
Regarding MW Control, what does MW In mean?
Valves move to maintain MW
based on Circ Water, etc
Regarding MW Control, what does MW Out mean?
Valves do not move
What is the IOPs overspeed trip setpoint?
110%
What is the only trip input from the Turbine Supervisory (TSI)?
Thrust Bearing Wear
Will a failure of all 3 speed sensors trip the turbine on the grid?
NO
What are the power supplies for IOPs?
CRID I, II and III
What is the primary tripping device for the turbine?
Trip Block Assembly
2/3 solenoids de-energize
