Unit 1 Main Generator Seal Oil system Flashcards
What is the normal operating pressure of the Unit 1 Main Generator Seal Oil system?
130#
What is the purpose of the Unit 1 Main Generator Seal oil System Recirculation pump?
Pumps oil from the Seal oil tank back to the top through spray nozzles to help remove Hydrogen from the oil.
What is the auto start of Unit 1 DC emergency seal oil pump?
125#
What is the purpose of the seal oil vacuum pump?
To remove gases from the top of the seal oil tank.
As Unit 1 seal oil header pressure lowers what is the order of supply?
Normal AC main seal oil pump.
DC Emergency seal oil pump @125#.
If turbine is in-service then the main turbine shaft driven oil pump would supply oil at 120#.
If the turbine is not in-service the seal oil would be supplied by the lift oil pumps via the bearing supply header.
If you start the Main AC seal oil pump what will also happen?
The recirculation pump will start as they are controlled the same switch.
How many seal oil cuno filters are in-service on unit 1?
Always 2 there is no isolation valves.
What is the max DP on the Unit 1 seal oil filters?
9#