Plant Fam.- Service Water Flashcards
How many Service Water pumps are there per unit?
3
List the loads cooled by Service Water
RECW HX Fuel Pool HX TECW HX Stator Cooling HX EHC Oil Coolers RFPT Lube Oil Coolers Main Turbine Lube Oil Coolers Alterex Air Cooler Iso-Phase Bus Duct Coolers ASD Cooling Water HX Backup Service Air Comp Generator Hydrogen Coolers ECCS Room Unit Coolers RHR Pump Motor Coolers Condensate Pumps Unit Coolers Drywell Chiller Condenser Control Enclosure Chiller Condensers Recombiner After Condenser Circulating Water Pumps Motor Coolers Main Condenser Area Unit Coolers
What voltages are the service water pumps powered by?
2.3kV
Which Service Water pumps are normally in service during the summer?
B and C
Which Service Water pumps are normally in service during the winter?
A and B or C
How many Service Water pumps are normally running?
2
Which Service Water loads are backed up by ESW?
ECCS (RCIC, HPCI, RHR, and Core Spray) unit coolers
RHR motor coolers
Control enclosure chillers
RECE and TECW heat exchangers (manual alignment required)
If both Emergency Service Water and Service Water are in service, which system will supply the loads and why?
Service Water because it is at a higher pressure
What can happen if Service Water and Emergency Service Water are both in service?
The cooling tower can drain to the spray pond
What bus supplies power to the 1A Service Water pump?
222 bus (2.3kV)
What bus supplies power to the 1B Service Water pump?
122 bus (2.3kV)
What bus supplies power to the 1C Service Water pump?
122 Bus (2.3kV)
What bus supplies power to the 2A Service Water pump?
122 Bus (2.3kV)
What bus supplies power to the 2B Service Water pump?
222 Bus (2.3kV)
What bus supplies power to the 2C Service Water pump?
222 Bus (2.3 kV)
