Upgrade to remove ads
454 - ESW
Terms in this set (27)
What are the cooling loads for ESW?
∙ 1G21 and 1G31 SBDGs
∙ NWCR and SWCR Room Coolers
∙ RCIC Room Coolers (essential)
∙ HPCI Room Coolers (essential)
∙ Control Building Chillers (alternate)
∙ 1K3 and 1K4 (alternate)
∙ RHR Pump Seal Coolers
∙ Core Spray Pump Motor Coolers
∙ RHRSW Pump Motor Coolers
∙ Refuel Floor Hose Station
What is the power supply for each ESW Pump?
∙ 1P099A: 1B32
∙ 1P099B: 1B42
What is the power supply for each ESW Pump Strainer?
∙ 1S089A: 1B36
∙ 1S089B: 1B46
What is the power supply for 'A' ESW/RHRSW RETURN TO COOLING TOWERS MO1998A and 'B' ESW/RHRSW RETURN TO COOLING TOWERS MO1998B?
∙ MO1998A: 1B34
∙ MO1998B: 1B44
What is the maximum flow for an ESW Pump?
What is the minimum ESW Pump flow required for pump cooling?
What has to happen in order for an ESW Pump to auto-start?
The ESW Pump handswitch on 1C06 has to be in "AUTO", and its associated SBDG must start. If the SBDG receives a START signal but DOES NOT start, the associated ESW Pump WILL NOT START!
True or False: The 'A' ESW Pump's auto-start signal is tied directly to/through 1VSF020 'A' SBDG Room Supply Fan.
True or False: You can secure the 'A' ESW Pump with the handswitch on 1C06 even when the 'A' SBDG is running.
True, but the 'A' ESW Pump will only remain secured if you continue to hold the handswitch in the STOP position.
True or False: The 'B' ESW Pump's auto-start signal is tied directly to/through 1VSF021 'B' SBDG Room Supply Fan.
False. This logic is unique only to the 'A' ESW Pump through its supply fan, 1VSF020.
True or False: You can secure the 'B' ESW Pump with the handswitch on 1C06 even when the 'B' SBDG is running.
False. The only way to secure the 'B' ESW Pump while the 'B' SBDG is running is by pushing and holding the STOP pushbutton on the front of the pump breaker (1B4207), and then manually opening the breaker.
Below what ESW/RHRSW Pit level is the ESW Pump considered Inoperable?
Below 19 feet
Above what level in the ESW/RHRSW Pit are you allowed to run the ESW Pumps without needing CRS permission?
What condition(s) will cause a 1C06A C-1 'A' ESW PUMP 1P099A TRIP OR LO DISCH PRESSURE annunciator?
∙ 150 amps (increasing)
∙ Pump discharge pressure of 75 psig (decreasing)
These are enabled 8 seconds after pump start
What will cause A[B] ESW Strainer 1S089A[B] to auto-start?
The start of its associated ESW Pump
Where do the ESW Strainers backwash to?
The Stilling Basin
What differential pressure will cause an ESW Strainer Hi dP annunciator?
5 psig (increasing)
On a loss of air, what is the fail position of the ESW Strainer Backwash CV?
What is the normal (non-emergency) position of A[B] SBDG Cooling Water Isolation Valve CV2080?
These valves are normally CLOSED, and will automatically OPEN when their associated SBDG starts and their handswitch is in AUTO.
True or False: CB CHILLER 1VCH001A DISCH TO ESW ISOLATION CV1956A[B] automatically OPEN on an ESW Pump start.
What condition(s) will cause a 1C06A D-4 ESW PUMP LOSS OF POWER OR GSW PUMP HS NOT IN AUTO annunciator?
∙ ESW Pumps (1P099A[B]) stopped from their supply breaker (1B3214[1B4207])
∙ Loss of 120VAC Control Power
True or False: It is okay to supply both loops of ESW with a single ESW Pump.
False. Operation of both loops from one pump results in significantly reduces cooling capacity.
Due to potential fouling of equipment cooled by ESW, when should the appropriate loop of ESW be declared Inoperable?
When its associated ESW Strainer Bypass Valve is OPEN
In what modes do Tech Specs require two ESW Subsystems to be operable?
Modes 1, 2, and 3
True or False: When 1G21 'B' SBDG is running, the 'B' ESW Pump 1P099B will continue to run regardless of the position of 'B' ESW Pump HS4928B on 1C06 or HS4928D at Remote Shutdown Panel 1C388.
True. The only way to secure 1P099B while 1G21 is running is by holding the STOP pushbutton on 1B4207 and manually tripping/opening the breaker.
True or False: The ESW System is operable when the Strainer Backwash function is disabled and the Strainer dP is below the operability limit of 15 psig.
Regarding the ESW System, what happens when breaker 1B3214[1B4207] is OPENED, and what is/are the concern(s)?
With this breaker OPEN, CV1956A[B] and CV2080 fail OPEN.
∙ CV1956A[B] being OPEN may lower Well Water pressure
∙ CV2080 being OPEN without ESW in service could result in an unmonitored release to the storm sewer
THIS SET IS OFTEN IN FOLDERS WITH...
414 - RBCCW
416 - RHRSW
411 - GSW
644 - Condensate and Feedwater
YOU MIGHT ALSO LIKE...
Allegiant A320 - Powerplant
UH-60M Start Up WCN
P-3C Start Malfunctions
OTHER SETS BY THIS CREATOR
733 - RB | TB HVAC
513 - Fire Protection
281 - Fuel Handling
OTHER QUIZLET SETS
Micro Final Review
Abnormal Final study guide