Section 3.8 Electrical Power Systems Flashcards
- LOT 201.37 Class 1E 125VDC*
- *
What is the minimum Individual Cell Voltage (ICV) allowed on the Class 1E batteries?
2.07 VDC
LCO 3.8.2.3 Battery Parameters
Battery overall voltage must be ≥128.03 VDC to make battery OPERABLE. (59 cells x 2.17 avg volts/cell)
- LOT 201.30 Offsite Electrical*
- *
How many gallons of fuel oil is required in each Standby Diesel’s fuel tank to make that diesel OPERABLE?
> 60,500 gallons
- LOT 201.30 Offsite Electrical*
- *
Which switchyard lines are not allowed to be counted toward tech specs?
- *Blessing 44 Line**
- Limited capability to provide required voltage*
- *138 KV Blessing Line**
- Lines run below other lines*
- *HILLJE 64 Line**
- Lines run below other lines*
- *HILLJE 44 Line**
- Lines run below other lines*
- LCO 3.8.1.1 AC Sources - Operating*
- *
When is LCO 3.8.1.1 AC Sources - Operating Applicable?
MODES 1-4
Requires 2 offsite sources and 3 ESF DGs
- LCO 3.8.1.1 AC Sources - Operating*
- *
What electrical busses if lost constitutes a loss of an offsite power source?
- Loss of Both Offsite Sources:*
- *Loss of 2 standby Busses to ESF Busses**
Loss of North and South Bus
Switchyard voltage < 340 kV (Normal) or < 358 kV (Alternate)
Power lost to both switchyard battery chargers for 20 hrs
- Loss of One Offsite Source:*
- *Loss of 1 standby bus to ESF switchgear**
Loss of North or South Bus
All ESF Busses powered from same transformer
- LCO 3.8.1.1 AC Sources - Operating*
- *
What must be verified if 1 ESF DG is INOPERABLE in MODES 1-4?
Verify all dependent systems the rely on the remaining OPERABLE ESF DG are OPERABLE.
Ensure AFW 14 OPERABLE while in MODES 1-3
