Black Magic to a Mechanic
P32B Service Water Pump has a large ground
Does the associated bus trip?
Alternate Power supply is this.
Shared with this other SW pump
No because of B bus ammtectors
B08 on C45, cannot operate more than one SW pump from here
P32F alt power supply is B-08
CVCS Orifice Isolations shut under one of these conditions
o To Open
CV 427 must be full open and have power available
One charging pump must be operating
CV-371 and CV-371A open
Instrument Air and Service Air auto actuation values
90 psig - IA Compressor auto start
85 psig - IA Overpressure Restart, SA compressor auto start (IA Header Press) SA to IA x-tie opens
80 psig - IA dryer bypass opens
90psig - SA Dryer Bypass opens
88 psig - SA back up compressor auto start (SA Header Pressure)
122 psig SA - SA compressor overpressure trip
115 psig IA - IA compressor overppressure trip
15 psig low oil pressure for K-2A, K-2B, and K-3A with 15 second TD
20 psig low oil pressure for K-3B with 15 second TD
What are the SI initiation signal setpoints, and coincidence for each one.
Low Pressurizer Pressure (2/3): 1735 psig
Low Steam Line Pressure (2/3 per loop): 545 psig
High Containment Pressure (2/3 Narrow Range): 4.8 psig
Manual Pushbutton (1 of 2 pushbutton)
An Operating Permit is what form of protection and what is required when working with an operating permit?
A type of tagging that protects people. Requires that Clearance owner and Holders are briefed daily prior to signing on to tags, and is owned by the Operating Permit Owner.
Power Supplies to your Charging Pumps, and their alternate operating stations?
1P-2A Norm 1B03 Alt B08 (1C04 or C45)
1P-2B Norm 1B03 Alt 2B02 (1C04 or 2C04 combo)
1P-2C Norm 1B04 Alt N/A
2P-2A Norm 2B03 Alt B09 (2C04 or C45)
2P-2B Norm 2B03 Alt 1B03 (2C04 or 1C04 combo)
2P-2C Norm 2B04 Alt N/A
Rk-24, N-4, N-11
Prx is 40%
Tave is...
Lpzr is...
Tave is 558-559F
Lpzr is 30.8%Crossover steam dumps are armed at this pressure, also known as this power.
>116 PSI
~520MWe or ~82% power
We are above P-9 when..
>/= 50% Prx
2 CWP's OperatingVaccuum in associated condenser is >22 "Hg
72 work hours
1X04 lockout occurs
G-01 is in Local control on C-02 and locally
C-65 engine start selector switch is in local start
G-03 is in excercise
Status of Vital AO buses
G-01 and G-03 auto fast start and power 1A05 and 1A06
G-02 will not auto start (C-65) and G-04 will auto start will not load, 2A05 and 2A06 never lost power
Unit 1 is at RTP
1CC-761A RCP CCW Return valve goes shut automatically
What caused it to shut and what must you do?
Rupture of the thermal shield of RCP, flow indicated >260 GPM leaving thermal shield. Trip the reactor then trip the pump.
Rx Power is at 100% RTP.
Tave is 935.67
Containment pressure is at 4.8 psig.
How does the secondary respond.
Turbine Trip (20AST and 20ET Rx Trip)
MFRV and MFRV Byp and MFIV shut (<5 Seconds)
Condensate Pumps trip
HDT Pumps Trip
Rx Power is at 28%
A01 Voltage is at 3100 V
Status of the Reactor?
Are you in a TSAC?
Reactor not tripped
TSAC for 3.8.1 AC Sources Operating (UV TS is at 3120V)
Chemistry has been determined to be out of specification for the feedwater system.
The action levels for 2nd chemistry are:Level 1 - Restore within 11 days or move to Level 2
Level 2 - Minimize corrosion, reduce power <50% within 12 hours, restore within 150 hours or go to Level 3
Level 3 - Shutdown quickly as possible <5% Prx as quickly as possible
D-08 incoming contactor opens due to UV on associated 480V bus
1Y01 is aligned to Y-16
2Y101 is aligned to DY0A due to 2DY01 being inoperable.What is the status of 1Y02 and 2Y02 and what can be done?
Current on D-06 battery and will not auto swap to Y-16 because of static transfer switches, cannot be aligned to DY0B. Must use diesels to restore 480V buses or swap to swing within 1 hour of being on battery or whatever (Yes I know this wasnt thought out but like you get the idea)
A containment isolation signal is sent by auto SI initiation. The following systems are isolated.
• Instrument Air (IA- 3047 & 3048)
• Letdown (CV-371 & 371A)
• RCP Seal Return (CV-313 & 313A)
• RE-211/212 sample (RM- 3200A/B/C)
• Aux Charging (CV-1296)
• CCW to Excess LD HX (CC-769)
• RCDT/PRT Vents and Drains
• RMW to CNTMT (RC-508)
• Accumulator N2 supply (SI-846)
• Sump A Drain (WL-1723 & 1728)
• SG Sample Lines (“A” S/G -> MS-2083, “B” S/G -> MS-2084)
• Pzr Steam/Liquid Sample Lines (SC-951 & 966A/SC-953 & 966B)
• Hot Leg Sample Line (SC- 955 & 966C)
• SG Blowdown (MS-5858 & 5959)
• Purge Supply and Exhaust Valves close (Valves shutting results in Purge fans tripping)
• CV-3200H Forced Vent to CNTMT shuts
• P707B Forced Vent Pump trips
OTΔT Turbine Runback
• 3°F difference between ΔTsp1 and actual ΔT.
• Runs the turbine back at 200% per minute until condition clears.
o 1.5 seconds ON, 28.5 seconds OFF (~5% per cycle, 10% min.)
OPΔT Turbine Runback
• 1.5° difference between ΔTsp2 and actual ΔT.
• Runs the turbine back at 200% per minute until condition clears.
o 1.5 seconds ON, 28.5 seconds OFF (~5% per cycle, 10% min.)
What are the controller 431-K setpoints and percent associated with setpoint.
2335 PORV 100
2310 Hi pressure alarm, full spray flow 87.5
2260 Spray flow begins 62.5
2250 Heaters Off↑, Heater begin to cycle↓ 57.5
2235 NOP, heaters cycle ~ 50% 50
2220 Cycling heaters full on, B/U heaters off 42.5
2210 B/U heaters on 37.5
2185 Low press Alarm
2135 0
What are the three different dots used for annunciators and conditions we use the dots.
Yellow: Testing
Red: Maintenance
Blue: Not Auto Clear
What four conditions will cause a trip of the Main Generator Auto Voltage Regulator?
Over excitation protection.
Loss of sensing circuitry.
The exciter field circuit breaker coming open.
40 relay (loss of field relay)
What are the pump flow shut off heads for RHR and SI pumps?
RHR pump single 1560 GPM shutoff head @ 122 psi (860-1550 GPM)
SI pump single is 700 GPM shutoff head @ 1120 psi (1230 GPM run out 950 gpm actual)
What signals and which instrument positions/conditions are required to have the CSD's in manual-manual control. Can the CSD's be armed while in Man-Man control?
CSD's control switch must be placed in manual and PT-484 must be taken to manual.
CSD's can be armed by condenser availability requirements but will not blow open.
RMS monitors that have automatic actions
RE-101 RE-222
RE-212 RE-223
RE-214 RE-235
RE-217 RE-305
RE-218
RE-219
The following designations are required to fulfill emergency event staffing by AO's.
AO Emergency Event Staffing
1 Lead AO: FB Leader
2 AOs: FBM
2 AOs/Fire Techs: FBM
2 AOs: EP Responders
1 AO: Dose Assessor