Text

Attachment 8: 2017 Training Material on Diesel Generator Air Start Flow Plow
	ML18360A476
Person / Time
Site:	Clinton
Issue date:	12/14/2018
From:	; Exelon Generation Co
To:	; NRC/RGN-III, Office of Nuclear Reactor Regulation
Shared Package
ML18360A500	List: ML18360A469; ML18360A470; ML18360A471; ML18360A472; ML18360A473; ML18360A474; ML18360A475; ML18360A476; ML18360A477; ML18360A478; ML18360A479; ML18360A480; ML18360A481; ML18360A482; ML18360A483; ML18360A484; ML18360A485; RS-18-146, Evaluation of Preliminary White Finding;
References
	RS-18-146
	Download: ML18360A476 (162)
	v • d • e

ATTACHMENT 8 2017 Training Material on Diesel Generator Air Start Flow Path

Exelon Generation Course I Program: EO Continuing Lesson ID: N-CL-EOC-1701 2017 Cycle 1 Training (DG-DO,

Title:

ES-HD, FC, RW, VD, TREQs, LMS Component N-CL-NLO-RQ01 N Mods & LL)

Author: David Williams Revision / Date: 00 I 01/05/2017 Prerequisites: None Revision By: N/A Responsible Site: Clinton Power Station Est. Teach Time 10hr Approvals Qualified Nuclear Engineer (If NIA Date: NIA Applicable)

Training Supervision Dave Williams ISi Date: 0110612017 Review Program Owner Tim Windingland ISi Date: 0111012017 Approval

(

TQ-M-223-F045 Rev 004

© Copyright 2013 by Exelon Nuclear, All Rights Reserved. Permission for reproduction and use is reserved for Exelon Nuclear (Any other use or reproduction is expressly prohibited without the express permission of Exelon Nuclear.)

SRRS 3D.126/3D.111 Retain approved lessons for life of plant OR life of insurance Policy +1 yr for RP lessons. May be retained in-department for two years, then forwarded to RM

Lesson

Title:

2017 Cycle 1 Training (DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & LL) Exelon Generation

. Lesson ID: N-CL-EOC-1701 Objectives Using normally available references, unless otherwise stated, and with 100% accuracy, in accordance with course reference materials and procedures, the trainee shall:

Objective Description ~ Slide(s}

233000.1.1 - STATE the purposes of the Fuel Pool Cooling & Cleanup System 20-22 including applicable design bases.

233000.1.2 - Describe the major flow paths for the following modes of the FC 23-29 system

.1 Normal Flow path

.2 RX vessel pool draindown

.3 RX vessel pool fill

.4 FC assist

.5 Alt Suppres~ion pool cooling 31 233000.1.6 - Given a Fuel Pool Cooling& Cleanup System Annunciator, DESCRIBE: 32

b. Any automatic actions 233000.1.7 - Given the Fuel Pool Cooling & Cleanup system, DESCRIBE the 33-36.

systems supporting and the nature of the support.

233000.1.15 - Given Fuel Pool Cooling & Cleanup System initial conditions, PREDICT how the system and/or plant parameters will respond to the manipulation of the following controls .

.2 Fuel Pool Cooling & Cleanup system Filter/Demin controls for Hold,

Filter, Backwash and Precoat

Lesson Title_: 2017 Cycle 1 Trainin*g (DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & LL) Exelon Generation Lesson ID: N-CL-EOC-1701 Objectives Using the approved pro'cedure, DISCUSS: 1

~ Slide(s)

Task 331701.18 - Lower FC Surge Tank Level During System Operation 39 Task 331701.30 - Pump Casing Vent After Maintenance for the Fuel Pool Cooling 39 and Cleanup System

Lesson

Title:

2017 Cycle 1 Training (DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & LL) Exelon Generation Lesson ID: N-CL-EOC-1701 Objectives Using normally available references, unless otherwise stated, and with 100% accuracy, in accordance with course reference materials and procedures, the trainee shall:

Objective Description ~ Slide(s) 264000.1.1 - STATE the purpose(s) of the DG/DO System including applicable 43-44 design bases.

264000.1.2 - Describe the major flow paths for the following modes of the DG/DO 45-47, 52-66 system

.1 Lube Oil Sys*

.2 Fuel Oil Sys

.3 Air Start Sys 264000.1.5 - Discuss the DG/DO system automatic functions/interlocks including 48-51 purpose, signals, set points, sensing points, when bypassed, how/when they are .

.6 Fuel Oil Storage Tank

.7 Fuel Oil Day Tank

.8 Fuel Oil Transfer Pump 264000.1.7 - Given the DG/DO system, DESCRIBE the systems supporting and 74-75 the nature of the support .

.1 DG Auto Starts

Lesson

Title:

2017 Cycle 1 Training (DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & LL)

Lesson ID: N-CL-EOC-1701 Exelon Generation Objectives Using normally available references, unless otherwise stated, and with 100% accuracy, in accordance with course reference materials and procedures, the trainee shall:

Objective Description ~ Slide(s) 264000.1.11 - EVALUATE given key DG/DO System parameters, if needed 76-77(

DETERMINE a course of action to correct or mitigate the following -

abnormal condition(s):

.1 High Crankcase Pressure

.2 Overspeed

.3 Overcrank

~ .

.4 Low Oil Pressure

.5 High Water Temperature

.6 Reverse Power

.7 Loss of Excitation

.8 Overcurrent

.9 Generator Ground Fault

'.10 Differential Current

Lesson

Title:

2017 Cycle 1 Training (DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & LL) Exelon Generation Lesson ID: N-CL-EOC-1701 Objectives Using the approved procedure, DISCUSS: .,

Task Description ~ Slide(s)

Task 350601.17 - Diesel Engine Lube Oil Addition or Removal 78 Task 350601.27 - Respond to DG 1A(18)[1 C] Auto Start 79 Task 350601.34D - Alternate Diesel Generator Start - Manual Override of Air 80 Start Solenoids

Lesson

Title:

2017 Cycle 1 Training (DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & LL) Exelon Generation Lesson ID: N-CL-EOC-1701 Objectives Using normally available references, unless otherwise stated, and with 100% accuracy, in accordance with course reference materials and procedures, the trainee shall:

Objective Description ~ Slide(sj 233000.1.1 - STATE the purpose(s) of the DG ROOMS HVAC System including 83-84 applicable design bases.

233000.1.2 - Describe the major flow paths for the following modes of the DG 85-87 ROOMS HVAC system operation .

. 1 Normal Standby Mode

.2 Diesel Generator Operating Mode

.3 Purge Mode J

Lesson

Title:

2017 Cycle 1 Training (DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & Lt)

Lesson ID: N-CL-EOC-1701 Exelon Generation Objectives Using the approved procedure, DISCUSS:

Task Description

~ Slide(s)

Task 340301.03 - Increased Cooling/PURGE Mode of the VD System 88-90 Task 340301.08 - Respond to a CO2 Initiation with respect to the VD System 91-92

Lesson

Title:

2017 Cycle 1 Training {DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & LL) Exelon Generation Lesson ID: N-CL-EOC-1701 Objectives Upon completio_n of this chapter, the student will be able to perform the following objectives at a minimum proficiency level of 80%, unless otherwise stated, on an oral or written exam:

Objective Description ~ Slide(s}

BC081r4_Controllers 4. State the purpose of a controller. 96 BC081r4_Controllers 5. Describe the theory of operation of the following types of controllers:

97-101

a. Two position

b. Proportional

c. Proportional-plus-reset (Pl)

d. Proportional-plus-reset-plus-rate BC081r4_Controllers 7. Describe the following characteristics of a flow control valve: 102

a. Linear

b. Quick opening

c. Equal percentage BC081r4_Contrqllers 9. State the function and describe the characteristics of valve positioners. 103-104 Treq 02422997-82 Discuss the operation of Bailey/NUS controllers at 1PA05J. 105

Lesson

Title:

2017 Cycle 1 Training (DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & LL)

Lesson ID: N-CL-EOC-1701 Exelon Generation Objectives Upon completion of this chapte_r, the student will be able to perform the following objectives at a minimum proficiency level of 80%, unless otherwise stated, on an oral or written exam:

Objective Description ~ Slide(s) 239003.1.1 STATE the purpose(s) of the EXTRACTION STEAM, HEATER VENTS & DRAINS System including 107 applicable design bases.

239003.1.2 DESCRIBE the major flowpaths for the following modes of the EXTRACTION STEAM, HEATER VENTS & DRAINS System operation .

108-113

.1 Extraction Steam System while operating in the normal mode

.2 Extraction Steam System while operating in a specified abnormal mode

.3 Feedwater Heating Drain System while operating in the normal mode

.4 Feedwater Heating Drain System while operating in a specified abnormal mode 239003.1.3 DESCRIBE the function, operation, interlocks, trips, physical location, and power supplies of the following EXTRACTION STEAM, HEATER VENTS & DRAINS System components .

114-119

.1 Feedwater Heaters

.2 Flash Tanks

.3 Drain Coolers

.4 Extraction Steam Isolation Valves

.5 Extraction Steam Check Valves

.6 Heater and Drain Cooler Normal Drain Valves

.7 Heater and Drain Cooler Emergency Drain Valves

Lesson

Title:

2017 Cycle 1 Training (DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & LL) Exelon Generation Lesson ID: N-CL-EOC-1701 Objectives Upon completion of this chapter, the student will be able to perform the following objectives at a minimum proficiency level of 80%, unless otherwise stated, on an oral or written exam:

Objective Description ~ Slide(s) 239003.1.5 Discuss the EXTRACTION STEAM, HEATER VENTS & DRAINS system automatic 120 functions/interlocks including purpose, signals, set points, sensing points, when bypassed, how/when they are.

239003.1.11 EVALUATE given key EXTRACTION STEAM, HEATER VENTS & DRAINS System paramete~s. if needed DETERMINE a course of action to correct or mitigate the following abnor.mal condition(s): 121-122

.1 Low heater level on system performance

.2 Any heater reaching it's high level setpoint

.3

High heater level on system performance

.4 Any heater reaching it's high-high level setpoint

.5 Heater string isolation valve closure

.6 Loss of control power

.7 Effect on other heaters when heaters are removed from service/ returned to service Task310201.16 Respond to Feedwater Heater Abnormal Level 123-124 Task 310201.19 Preparing Feedwater Heater Level Control For Maintenance Or Trouble-Shooting Of A Normal Drain Valve Malfunction 125

Lesson

Title:

2017 Cycle 1 Training (DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & LL) Exelon Generation Lesson ID: N-CL-EOC-1701 Objectives Using normally available references, unless otherwise stated, and with 100% accuracy, in accordance with course reference materials and procedures, the trainee shall:

Objective Description ~ Slide(s) 268013.1.1- STA TE the purposes of Spent Resin System 138.

268016.1.4- STATE the physical location and function of the following SOLID 127-130 RADWASTE .SLUDGE COLLECTION/DISPOSAL system controls, indicators, and/or sensors .

.9 Quantum Master Control Console

.10 Tank Level Instrumentation 145

. 268009.1.10- EXPLAIN the reasons for given RADWASATE DEMINERALIZERS System operating limits and precautions

.1 Reason for maintaining Resin Outlet Valve gagged shut during.

normal operations .

.2 Method of performing a Resin/Charcoal load .

.3 Method of performing a Resin unload .

.5 Loading charcoal prior to loading resin.

Lesson

Title:

2017 Cycle 1 Training (DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & LL) Exelon Generation Lesson ID: N-CL-EOC-1701 Objectives Using the approved procedure, DISCUSS:

~ Slide(s)

Task 390901 ~02 - Spent Resin Tank-level readings, 17 Rese_tting a Locked Up 141-142 Quantum Master Controller ,

Task 390902.06 - Phase Separators Level Readings 131-137 Task 390903.02 - Waste Sludge Tanks level readings 137 Task 390904.03 - Concentrated Waste Tanks level readings 137 Task 390905.02 - FP/FD Sludge Tanks level readings 137 TREQ 02623308 Liquid RW Discharge Surveillance 146 TREQ 02623308 Resin Loading activities 143-144 TREQ 02623308 WX Tank Level Mod 139-141

Lesson

Title:

20i7 Cycle 1 Training (DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & LL} Exelon Generation Lesson ID: N-CL-EOC-1701 Evaluation Methods and Passing Criteria For objectives: Written Examination with Score 2: 80%

For tasks: Satisfactory classroom participation, as decided by the instructor.

References

1. N-CL-OPS-233000, FC

2. N-CL-OPS-264000, DG-GO

3. N-CL-OPS-288006, VD

4. N-CL-OPS-239003, ES-HD

5. N-CL-OPS-268002, RW INTEGRATED LIQ COLLECTION AND PROCESSING

6. . N-CL-OPS-268008, RW FILTERS

7. N-CL-OPS-268009, RW DEMINERALIZERS

8. N-CL-OPS-268010, RW EVAPORATORS

9. N-CL-OPS-268011, RW WASTE SAMPLE

10. N-CL-OPS-268012, RW EXCESS WATER

11. N-CL-OPS-268013, RW SPENT RESIN .,*

12. N-CL-OPS-268014, RW CONCENTRATE WASTE

13. N-CL-OPS-268016, RW SOLID RW SLUDGE

Lesson

Title:

2017 Cycle 1 Training (DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & LL) Exelon Generation Lesson ID: N-CL-EOC-1701 Evaluation Methods and Passing Criteria For objectives: Written Examination with Score 2: 80%

For tasks: Satisfactory classroom participation, as decided by the instructor.

References

14. CPS 3317.01, FUEL POOL COOLING AND CLEANUP (FC)

15. CPS 3317.02, FUEL POOL COOLING FILTER DEMINERALIZERS

16. CPS 5917, ALARM PANEL 5917 ANNUNCIATORS (OPL45J)

17. - CPS 3506.01, DIESEL GENERATOR AND SUPPORT SYSTEMS

18. CPS 3403.01, DIESEL GENERATOR HVAC (VD) .

19. CPS 3102.01, EXTRACTION STEAM-HTR VENT AND DRAINS

20. CPS 3906.01, OPERATING RW DEMINERLIZERS

21. CPS 3909.01, OPERATING SPENT RESIN SYSTEM

22. CPS 3909.02, OPERATING PHASE SEPARATORS

23. CPS 3909.03, OPERATING WASTE SLUDGE SYSTEM

24. CPS 3909.04, OPERATING CONCENTRATE WASTE SYSTEM

25. cps 3909.05, OPERATING FUEL POOL FILTER DEMIN SLUDGE SYSTEM

26. CPS 9911.50, LIQUID RADIOACTIVE DISCHARGE SURVEILLANCE

27. CY-AA-110-5002, BEAD RESIN USE AND CONTROL

28. BC081r4_CONTROLLERS (GF.ES)

Commitments Ensure the associated section is annotated in the right-hand column of the notes page NONE

Lesson

Title:

2017 Cycle 1 Training (DG-DO, ES-HD, FC, RW, VD, TREQs, Mods & LL) Exelon Generation Lesson ID: N-CL-EOC-1701 Instructor Materials

1. System procedures (as needed)

2. System lesson plan (as needed)

3. Classroom with overhead projection abilities Student Materials

1. lpads with Sharefile access

Focus Areas

Crew/ Dept Focus Areas PIIM HU Improvement Plan

-**-***---~

Your Role in Training Participation Questions Feedback Training Observations LASER Entries 18

- ----------~

Ground Rules Return from breaks on time Pagers and phones on silent mode Practice good housekeeping E@

Phone calls, texting, and messages only on breaks, unless it is an emergency 19

20 Remove decay heat from the spent fuel assemblies Maintain pool water level Minimize fission product concentration in the water Maintain pool clarity for fuel handling Clean up the suppression pool Provide alternate suppression pool cooling 21

remove the decay heat remove radioactive contaminants

~ Minimize the radiation levels

~ Minimize release of radioisotopes 22

Flow Paths FROM UPPER POOLS A

HX FROM RHR

~

RHR FC FILTER PUMP SUCTION 023 B TO HX UPPER POOLS CASK SPE T 10RAGE FUB..

POOL POOL 23

CY ~ A Makeup GJB From CNMT Surge Upper Pools Tank Normal A

HX 035 014A l FCOlAA FCPump~-0 026A From RHR LC 024A To CNMT RHR - FC AHter Pump Upper Demineralizer B Suction 002 001 023 Pools HX

~

l FCO lAB FC Pump 8 0148 0268 To Equipment Drains 1FC127D 1FC133

_ _ _ _ _ __, i - - - t....t--1 Cask 5 orage 1FC127B To Fuel Building Fuel Pool Transfer Equipment Drain Pool Tank 1RE01T

< 1 ll FUEL POOL COOLING AND CLEANUP SYSTEM FLOW DIAGRAM

RX vessel Pool Draindown f tt tt .--------

~-* -----,

RHR _ _ _ ,

FROM 3111 3A TO CONDENSER FR OM CY FROM FC SUPPLY

~0-1CY010

~ TO 157 156 FC SURGE I

CNMT TANKS BOUNDARY CNMT BOUNDARY 136 FROM I RHR 38; 3fB I

I I I I 86B FILL LJNE t~ I I '

r r FC SYSTEM FLOW DIAGRAM CONTAINMENT POOLS 25

RX vessel Pool Draindown CY ~ A Makeup G.38 F rom CNMT U pper P ,o ols A

HX 0 14A l .FCOlAA F CPum p ~ - 0 ~

1 FC004A 026A From 0 16A RHR

.--------, 0 24A T o CNMT RHR - FC R.ilter Pump Upper Sucti on 002 001 023 B Pools HX t....-

176

~

l FCOlAB 177 B FC Pump B 026B To Surge Equ i pment Tank Dra i ns 1 FC127D Cask Spe n s orage 1 FC127B Fu e l Fu e l T o Fuel Bu il d i ng storage Pool Transfe r Equ i pment Dra in Pool T ank 1RE01 T Pool 1 ll FUEL POOL COOLING .AND CLEANUP SYSTEM FLO\N DIAGRAM

RX vessel Pool Draindown l 11 fl ll u TO CONDENSER FROM CY FROM FC SUPPLY

~ 0-1CY010

~ TO FC SURGE I

CNMT TANKS BOUNDARY A

Surge 136 Tank J 86B FI LL LINE B

Surge Tank Spen Fuel S orage 7 Pool M FLOW DIAGRAM CONTAINMENT POOLS

RX vessel Pool Fill t ft TO CONDENSER FROM FC SUPPLY

~ - TO - ~

157 156 FCSURGE CNMT TANKS BOUNDARY FRO RHR -_"'----'----- -,

3B; I I 1 oos RLLUNE I

FC Assist From CP T u119*' P.oois A

HX To C Upptf

~ ocn Pock

[IJII To

_M nt* *-

1fe127D RJEL POOL COOLING .N-10 CLEANUP SYSTEM FLO.IV DIAGRA 29

Interim Summary FROM UPPER POOLS 128 A HX FROM RHR

~

RHR FC FILTER PUMP SUCTION 023 B TO HX UPPER POOLS CASK SPE T TORAGE FUB..

PO OL POOL 30

CY ~ A Makeup {]J8 From CNMT Surge Upper Pools Tank 5917-48 Annunciator A HX 035 014A lFCOl AA FC Pump ~-0-----~~*---------

1FC004A 026A From 016A RHR .

LC To CNMT RHR - FC lter Pump Upper Demineralizer B Suction 002 001 Pools 016B HX

~

FCO l AB FC Pump B 0148 0268 B

To Surge Equipment Tank Drains 1FC127D 1FC127B To Fuel Building Fuel Equipment Drain Transfer Tank 1RE01T Pool 11 FUEL POOL COOLING AND CLEANUP SYSTEM FLOW DIAGRAM

Support Systems Component Cooling Water System (CCW)Shutdown Normal supply to FC HX and Pump Motor Coolers Service Water System (SX)

Backup supply to FC HX and Pump Motor Coolers Emergency Makeup to Spent Fuel Storage Pool Cycled Condensate System Makeup to FC Surge Tanks Fill supply to Upper Containment Pools F/D backwash and precoat Containment and RPV Isolation Control (CRVICS) System RPV Level 2 / High DW press isolation signals 32

Support Systems

-AC Electrical Distribution

-DC Electrical Distribution

-Leak Detection System CT, OW, AB, and FB Floor and Equipment Drain System

-Residual Heat Removal System

-Main Condenser

-Solid Radwaste Processing

-Process Sampling

-Service/Instrument Air System

-Fuel Building Ventilation

-Containment Ventilation/Drywell Purge

-Radwaste Building Ventilation 33

FD Train Manual Pushbuttons HOLD FILTER BACKWASH PRECOAT T ables Table l : Hold Pushbutton Actions and Effects Table :. Filter Pushbutton Actions and Effects Table 3:. Backwash Pushbutton Actions and Effects Table 4:: Pree oat Pushbutton Actions and Effects

Backwash Pushbutton Actions and Effects 1-1.1s.21 Initiating Event Action System Effects Press Backwash Backwash light comes on, PLC pushbu tton (PB-3) starts the process.

Backwash program sealed in.

058 closes FD inlet isolated from FC & SF systems.

068 opens Water begins to drain for FD vessel dome.

067 opens Service Air ad mitted to vessel dome 068 closes Vessel dome is pressurized.

062 closes, Hold Pump stops, 065 FD water & resin is fo rced out th ro ugh opens. main drain.

067 closes Serv ice Air is shut off.

065 closes Vessel drainage stops.

04 1, 063 & 066 open CY enters to fi ll FD & flush through overflow line.

069 opens Air enters fro m bottom of vessel to create froth ing action & dislodge resin from septa. (Air Scour) 069, 063, 066, & 04 1 close Vessel fill & scouring act ion stops.

067 opens Service Ai r pressurizes vessel dome.

065 opens FD vessel water and resi n is fo rced out through main drain.

067 closes Service Air to dome is shut off.

065 closes Vessel drainage stops.

PLC stops the process, Backwash light goes out, Shutdown light comes on.

35

Preco at Pu sh butt on Ac ti ons a nd Effe cts (. 1.1 5.2 (

l ni1 i:11 ing Evenl Acti on Sys tem Effec ts Press Precoat pushbutton (P B-4) PLC stans the process Shutdown light goes ou t, Backwash light comes on , and Precoat progra m is sealed in.

Backwash li ght goes out, Precoat light comes on , and Power Failure rel ay is reset (if necessary).

063, 066 and 04 1 o pen FD Vesse l fills with CY water.

PS-FC024 senses hi g h pressure 066 closes Vessel overflow stops.

in overnow lin e 066 opens Vessel overfl ow resum es 04 1, 063 , and 066 close FD Vessel fill stops Precoat Pump stans 064 and 070 open 063 opens Clean water from Precoat Tank is recircul ated through FD Vessel at low now rate.

Resi n Timer stans and is sealed-in 070 opens to high flo w setting Precoat recirculati on fl ow rate increases 053 open s 060 opens Slurry from Resin Tan k enters Precoat Pump suct ion th rough Resin Eductor Resi n Timer stan s and Res in Coating light comes on Resi n slurry pumped 10 FD Vessel where resin coats the FD sepia fo r 35 minutes 060 cl oses Resin slurry fl ow is shut ofTto Precoat Pump suction stream .

053 closes Resin Coating li ght goes out and Resin Timer resets 070 closes to low fl ow setti ng Precoa1 recircul ation fl ow rate decreases 062 opens and I-fold Pump stans Hold Pump supplies flow through FD Vessel 063 closes Precoat Pump supply to FD Vessel is shu1 ofT 064 & 070 close Backwash light comes on, Precoat light goes out, 058 FD inl et is lined up 10 FC or SF system opens, and Precoat Pump stops Backwash light goes out FD train is now in Hold mode and can be placed in service as needed . 36

TREQ 1648565-55 During shift in early September 2015 a leak was identified on the FC pool gate that separates the cask wash down pit from its adjacent pool. During initial investigation it was apparent that several operators were unaware of the capabilities or limitations of these pools and pits that are WEST of the 755' FB IFTS Fuel Transfer Pool. One knowledge deficiency in particular was that the fuel cask wash down area (pit) was not immediately recognized as NOT being a pool that would be capable of retaining fuel pool water if a seal failure were to occur. This information was either not covered or not retained by operators when the FC system review was performed. I do recall that there was some brief discussion about how the upcoming handling of casks may occur.

37

TREQ 1648565-55

/ GATE E STORAGE r GATE DSTORAGE GATE

+-D GATE GATE

-E C FUEt CA'S!<

S ORAGE POOL GATE C STORAGE SPENT FUEL STORAGE POOL GATE B STORAGE GATEA STORAGE L

RA: F POOL 38

CPS 3317.01 Task 331701.18 - Lower FC Surge Tank Leve*1 During System Operati_on Task 331701.30 - Pump Casing Vent After Maintenance for the Fuel Pool Cooling and Cleanup System CPS 3317.01 39

.OPEX Lesson Plan:

Attachment A- Fuel Pool Siphoning Events Attachment B - Reactor Cavity Overfilled during Floodup (Must-Know-OE) 40

Summary The purpose of the Fuel Pool Cooling and Cleanup (FC) System is to remove decay heat from the spent fuel assemblies, maintain pool water level, minimize fission product concentration in the water, and maintain pool clarity for fuel handling.

126 A HX FCPUMPA 004A FROM RHR RHR LC FCFILTER PUMP SUCTION 002 001 DEMINERALIZE B TO HX UPPER PCOLS 004 CASK P.:a SPENT TORAGE TRA.',;S."E."! FUEL POOL "°°'- POOL 41

.Diesel Genera tor/Diesel Fuel Oil -

Purpose

To provide an inde{Jendent, .Onsite source of Emergen cy Power during Loss of Off-site power and LOCA* to vital loads

Design Bases

Redundant - only need 2 of 3

~ Seismic

Enough fuel oil stored for 7 days at maximum DG load

Air starts- 5 consecutive starts without recharging air receivers

Start and load in 12 seconds .

Flow Paths

Fuel Oil Transfer and Storage

DAY TANK DIESEL GENERATOR STRAINER 55 PSIG FUEL OIL STORAGE TANK I_

Fig 17 FUEL OIL DRAIN TRANSFER PUMP n1cc,c1 l"'Ct..lCC, ft Tt'\C, C'I ICI t'\11 C>Tt'\C, ft t"'-C O TC, ft t..lC>C'CC, C>VC>TCIUI

INJECTOR INJECTOR FILTER FILTER INJECTOR ASSEMBLY 0--------

FUEL PRESSURE GAUGE FILTER ALARM (PANEL MOUNTED) SWITCH (50 PSI)

-----*-------- r i i i i' TO i DAY TANK i

i MANIFOLD i

'\I ASSEMBLY I FUEL PUMP i (ENGINE DRIV!=N) i FROM i DAY TANK i FUEL SUCTION i STRAINER i

i ii _ ........_ ........_______________________ _ FUEL PRIME PUMP Fig 18 DUPLEX FILTER

Fuel Oil Transfer Pumps

Located DG Bldg 712'

Takes suction on Fuel Oil Storage Tank

and discharges to Day Tank

Suction and Discharge pressure local indication

Auto start when DG starts and shuts down*

when DG does

Fuel Oil Day Tank

737' DG Bldg

- 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months operation for max LOCA loads

Overflows back to storage tank

INOP DG for following levels

Div 1 & Div 2 <54%

Div 3 <35%

Low level alarm - local

Fuel Oil Storage Tanks

Stores and supplies of fuel oil to DG for 7 days during max LOCA conditions

Div 1 51,000 gallons (LCO limit is 43, 810)

Div 2 45,000 gallons (LCO limit is 38,572)

Div 3 29,500 gallons (LCO Limit is 25,286)

Level alarm local and indications in MCR

Fuel Oil Storage Tanks cont.

DC Priming Pump

Auto start on DG Start

Ensures sufficient fuel to injectors on DG Start

Auto stop when DG gets to 850 RPM (DIV 1 & 2)

DIV 3 runs continl.Jously

Local panel

Engine Driven Fuel on Pump

Driven by the engine accessory gear train

4.5 gpm takes suction on day tank to injectors through filters

Supply and return header pressure near fuel oil duplex filter (local)

Fuel Oil Filters

Prevents clogging of injectors

One in service, other standby

Both can be in service with the selector lever in the mid-position

Starting Air

Starts and accelerat es the DG to achieve rated voltage, frequency and speed within 12 seconds of D_G start signal

275 PSIG 1DG16MC(G)

AIR COMP-RESSOR AIR MOTOR 1DG01CA (1DG02CA) AIR RECEIVER TANK s START SIGNAL 1DG640 CYL (1DG644) EN 1DG04TA 1DG16ML(N)

(1DG05TA) 1DG(

GOVERNOR BOOST AIR 1DG012D(H) MOTOR AIR MOTOR AIR DRYER 1DG21DA(B) 275 PSIG *I s START SIGNAL 1DG638 (1DG642) 1DG16MA(E) 1DG012C(G) 1DG16MB(F) 1DG012A{E)

GOVERNOR BOOST AIR MOTOR AIR AIR MOTOR RECEIVER 1DG008B(F) CYL TANK 1DG646B(F) OILER 1DG16MM(P) EN 1DG94TB s START SIGNAL 1DG639 AIR (1DG05TB) (1DG643) 1DG(

COMPRESSOR 1DG011A(C) 1DG01CB (1DG02CB) GOVERNOR BOOST 1DG16MD(H)

AIR.

Fig 18 1DG6.46D(H) .

1DG008D(H)

OILER MOTOR s START SIGNAL 1DG641 (1DG645)

GOVERNOR BOOST

250 PSIG 200 PSIG AIR COMPRESSOR AIR MOTOR 1DG03CA AIR RECEIVER TANK . s START SIGNAL AIR 1DG06TA MOTOR GOVERNOR BOOST 1DG012M 1DG012K CY E

1[

AIR DRYER 250 PSIG *I 1DG21DC 1DG012L AIR 200 PSIG MOTOR AIR MOTOR AIR 1DG008K OILER RECEIVER TANK s START SIGNAL-AIR 1DG06TB 1DG646K COMPRESSOR .

1DG011E GOVERNOR BOOST 1DG03CB Fig 19

DIV. I & II ENGINE AIR START MANIFOLD DIV. I & II ENGINE AIR START MOTOR Air Start Motors

Div 1 & 2 have three air start motors per engine

One of the motors on each engine is fed from the alternate air receiver

6 motors engage and crank engine only three are required

Div 3 has 2 redundant pairs

Air Start Solenoids

Provide *the interface between the DG

starting control logic and the engine air starting system

Energized by 125 VDC

Manual override for a loss of DC

Air flow to air start motors through main air start valves from the receivers

In-Line Oilers

Installed in the air lines upstream of the air start motors

Release oil-air mist that lubricates the air start motors during engine cranking

Flow Path

Lube Oil

~ 1:::== - - - - ----;i,~

MAIN LUBE ~

I ===----======,

Fig 20

, PISTON -

COOLING-I I

TO TURBO FILTER BYPASS RELIEF VALVE MAIN LUBE AND 125psi 4 o psi SETPOINT PISTON COOLING PUMPS30-40ps id LUBE OIL FILTER 75 SCAVENGING PSI PUMP TURBO

[]FILTER LUBE OIL COOLER J CIRCULATING Cl;CULATING tIll OIL PUMP OIL PUMP 480 VAC 125 voe IMMERSION V TO HEATER MAIN BEARING HEADER TURBO TURBO SOAK BACK ENGINE OIL PUMP PUMP WATER _ __

480 VAC 125 voe OVERFLOW STRAINERO STRAINER ENGINE SUMP STRAINER SUMP

Vent To Engine

. --1 Cooling Wate

-===-===

~ections Fig 8 Lube Oil Cooler l

. ~

Lube Oil Circulating Pump Auxiliary Turbocharger 1 Lube Oil Filter Oit From Engine Sump Piston Cooling Oil Main Lube Oil And Oil To Bearings Piston Cooling Oil Pumps

Lube Oil Pumps

Main Lube Oil Pump: to engine moving parts 157gpm for 12 cylinder, 185 gpm for 16 cylinder

Piston-cooling Pump: to piston carrier to cool underside of piston crown and ring belt

66 gpm for 12 Cylinder and 92 gpm for 16 Cylinder

Header Temp gages on accessory of DG

Oil Pumps

Scavenging Oil Pump: provides suction pressure for main and piston cooling pumps

Goes through filters, cooler and strainer

Local discharge pressure

Circulating Oil Pump

AC driven keeps engine warm and ready to start

DC backup pump

On-Off Sw\tch at local engine panel

Turbo "Soakback Oil Pump"

Provides oil to turbocharger when DG shutdown

AC and DC backup

3 gpm

ON-OFF local controls

Lube Oil Strainers/Filters

3 strainer: one is scavenging oil and 2 main lube oil

Lube Oil Filter: 7 element full flow type with sight glass on the side

Lube Oil Cooler

Cooled by jacket water and heated by jacket water

Inlet and outlet temperatures monitored locally

MCR CONTROL SW. LOCA RSP START TRANSFER SW. RSP EMERGENCY MCR START r - - -- TRANS FER SW. - ~

SELECT SW. NORMAL MCR CONTROL SW.

CONTROL MCR AUTO START SELECT SW. ROOM DIESEL ROOM LOOP LOCAL ENGINE START SW.

START AUTO START CIRCUIT 86 LOCKOUT RELAY LOCAL ENGINE MAINTENANCE SW.

START

MCR CONTROL SW. LOCA RSP S1ART TRANSFER SW. RSP EMERGENCY MCR START ,--- - TRANSFER SW. - -

SELECT SW. NORMAL MCR

CONTROL CONTROL SW.

AUTO

+-' MCR START SELECT SW. ROOM C DIESEL ROOM 0

u LOOP en

+-'

LOCAL ENGINE START SW.

START L.

co

+-'

en AUTO START CIRCUIT 0

+-'

s 86 LOCKOUT RELAY

<( LOCAL ENGINE MAINTENANCE SW.

START

DG Trips

Engine Overspeed

Engine Over crank (failure to start but will cause a lock out relay trip) .

Low Lube Oil Pressure

High Water Jacket Temperature

Reverse Power

Loss of excitation

Overcurrent

Generator Ground Fault

Differential Overcurrent

DG Trips cont.

Engine Overspeed

Engine Over crank (failure to start but will cause a lock out relay trip)

Low Lube Oil Pressure

High Water Jacket Temperature

Reverse Power

Loss of excitation

Overcurrent

Generator Ground Fault

Differential Overcurrent

Add/Remove Lube Oil Res ond to DG Auto Start Manual Override of Air Start Solenoids

Summary

Trips

Auto Starts

- Engine Overspeed - Division I & 11

- Engine Over crank (failure

High Drywell Pressure to start but will cause a lock (1.68 psig) and/or out relay trip)

Low RPV Water Level 1

- Low Lube Oil Pressure (-145.5")

- High Water Jacket

Bus Undervoltage Temperature

- b. Division 111

- Reverse Power

High Drywell Pressure

- Loss of excitation (1.68 psig) and/or

- Overcurrent

Low RPV Water Level 2

- Generator Ground Fault (-45.5")

(Div 1 & 2)

Bus Undervoltage 81

- Differential Overcurrent

Purpose

Ventilation for the three DG rooms, day tank rooms, and the FOST rooms (to prevent accumulation of diesel fumes).

Normal alignment for VD:

- Oil Room Exhaust Fans for all 3 DGs running (draw from the day tank and FOST rooms)

- Makeup Fans running

- Supply fans off

Design Bases

Operate under normal and abnormal plant operating conditions

Air intake and exhaust openings are located a sufficient distance apart to preclude reintroduction of exhaust air into the room

Seismic

Vital power

Divisional separation

Limit room to 130degF

Flow Paths CPS 3403 . 01 2.1 VD contro l s the temperature in the DG rooms due to equipment considerations . It also mainta i ns su f ficient air f l ow to the day tank and o i l storage rooms to keep the rooms purged of potentia l ly combust i ble fumes .

2.2 Normal system conf i gurat i on is wi th :

DG Rm lA(B) [C] Vent Fans , 1VD01CA(B) [CJ in STANDBY .

DG Vent Oi l Room lA(B) [C J Exh Fans , 1VD02CA(B) [C] running .

DG Make - Up Fans , 1VD03CA(B) runn i ng .

2.3 When any o f the DGs start , the associated vent f an a l so starts in antic i pation of the increased a i r flow and cooling requ i rements .

~ U PFAINA OD1ES8L ODIESE G EN E RA OR ROO?, GE ERATOR ROOM OD1ES 8L 1C 1B G BN E RATOR ROO' 1A DIESEL ,GE - RATOR R0 0 1 1 HVAC AK UP SYSTE .

1VD 01Y A

DlESELGIEINERATOIR IROO 1A ( 1B,1C )

1V010Y A(B,C)

IOAY TANK ROOMI 1A (1B,1C)

EXHAUST FA IETL 1VD08Y A (B ,C)

DIESEL G 1 RAT0 R 1

OL TANKROOIM V TSYS 1A ( 1B,1C)

Increasing Cooling

/Purge Mode 3403.01, Section 8.3 NOTE

DG Rm 1A(B)[CJ Vent Fan, 1VD01CA(B)[CJ will trip at -

70°F room temperature when the DG is not running.

Supply Air Damper 1VDO 1YA(B)(C) will not open on fan start if outside air temperature is < 70°F

When in PURGE mode, the supply air damper and recirc damper do not modulate to maintain > 70°F

The respective Diesel Generator Day Tank Room DP is impacted by running the VD Vent Fan for that division (especially Division 3). Alarms and auto start of the FO Transfer Pump have occurred upon VD Vent Fan start (IR 910035).

Increasing Cooling

/PURGE Mode 3403.01, Section 8.3 (Cont.)

WARNING

The starting of the DG Room Vent Fan can cause injury to any personnel located in the DG Vent Room.

Observe proper safety precautions for entering a CO2 filled atmosphere.

(MCR) Sar

DG Rm lA (B ) [ C J Vent Fa ,. 1VD0 1CA(B,) [C J ..

Increasing Cooling/PURGE Mode 3403.01, Section 8.3 (Cont.)

( oca)

IF desired fo r te perat re/PURGE co t r o l ,

THEN pace Di v 1(2) [3] rge Switch to URGE.

v 1 3 ] at entrance to *v 1 3 ] DG Roo, v a CB, 755' HVAC Mezza 1 i ne , Y- 129 . )

3. i e l c r eased coo l i ng/P GE mode l S no o . ger des i red ,

- ) ( oca ) p ace l V ( 2) [ 3 J rge Swi tch to NORMA .

) (MCR) Stop DG A (B) [ C ] Ven t Fan, VDOlCA( B) [ C ]

CO2 Initiation 3403.01, Section 8.8 NOTE On a CO2 initiation signal, following divisional fans trip and dampers shut:

DG Rm 1A(B )[C] Room Vent Fan, 1VDO 1CA(B )[C]

DG Vent Oil Room 1A(B)[C] Exh Fan, 1VD02CA(B)[C]

DG Make-Up Fan A(B), 1VD03CA(B)

Makeup Fan Discharge Damper, 1VD25YA(B)

Filter Isolation Damper, 1VD18Y

Exhaust Damper, 1VD03YA(B)[C]

Back Draft Damper, 1VD27YA(B)[C]

Fire Dampers 1VD08YA(B)[C] & 1VD1 OYA(B)[C]

CAUTION Observe proper safety precautions for entering a CO2 filled atmosphere.

CO2 Initiation 3403.01, Section 8.8 (Cont.)

r ._. :

I

1. .h en th ~02 I niti ti sig l .1.

1 ) Purg* A (B ) [ J p r s ti *3.

L.. ) a e Ma t e a ce e a e t. e f

e ,

f , - t J-_e f

. e -

l e a "'

1 1 0 . .A

') lV O ..:fB 3 1 _. Q Y

1

J10 ..:fA 1 lOYB 1 _.10 .:fC

) ~t rt V per s tin * .1.

OPEX Beaver Valley Unit 1 2015-11-10 1:57 PM #320530 Failure of DG CO2 System to Actuate During Surveillance Testing Abstract:

On 11/10/15 during the 18 month surveillance test of the Unit 1 number 1 Diesel Generator CO2 system, the valves for the CO2 system did not actuate when tested from a Manual discharge pushbutton. In the event of a fire CO2 fire suppression would reduce the potential for damage to safety-related equipment important to safe shutdown. The cause was a pilot valve mechanical plunger became stuck.

Since a compensatory firewatch was established this event had minimal impact on station operations.

93

Summary

Rooms ventilated?

~ The three DG rooms, day tank rooms, and the FOST rooms

Normal alignment:

Doil Room Exhaust Fans for all 3 DGs running (draw from the day tank and FOST rooms)

D Makeup Fans running 0Supply fans off

Review flowpaths:

~ Normal Standby Mode

~ Diesel Generator Operating Mode

~ Purge Mode 94

BC081r4_Controllers 4. State the purpose of a controller.

A controller is device that compares input signal with setpoint and generates output based on difference (error signal)

Five types of controllers:

1. Two position controller

2. Proportional controller

3. Proportional plus derivative

4. Proportional-plus-reset controller

5. Proportional-plus-reset-plus-rate controller 96