Flashcards in CO: Control Oil Deck (19)
Which valves in the Main Turbine System does CO operate?
How many pumps does the CO System have? How many are normally running?
1 running, 1 in standby
What is normal discharge pressure for a CO pump?
At what pressure will the standby CO pump start?
1300 psig as long as its not in PULL-TO-LOCK
How does a CO pump get an amber Control Room light?
Auto start with the pump originally 'Green Flagged'
How do the CO pumps maintain a constant discharge pressure with changing system demand?
They vary their pump stroke on system demand
How is cooling and lubrication supplied to the CO pumps?
Via a chain driven aux pump
When do the CO pump discharge filters alarm?
What temperature is the CO reservoir maintained?
How many inches in the reservoir is 1 barrel?
How many accumulators does the CO system have?
What are the CO accumulators charged with? To what pressure?
What is the capacity of the CO system accumulators?
200% for transients
How many coolers does the CO system have? What cools them?
What is the purpose of the Fullers Earth Filters?
They maintain the pH of the oil neutral by absorbing water and acids.
What is FCV-27 in the CO System?
Its the key-locked throttle valve that controls flow to the Fullers Earth Filters
How is the standby CO pump test performed?
HV-29 manually relieves system pressure on an isolated section of the supply header to start the standby pump. Performed locally.
What Main Turbine Trips are associated with the CO System?
1100 psig CO header pressure on a 2/3 logic will trip the turbine.
Alarm and Standby pump start at 1300 psig