ML20092G067
| ML20092G067 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 12/08/1989 |
| From: | Fitzwater L GEORGIA POWER CO. |
| To: | |
| Shared Package | |
| ML20092F288 | List:
|
| References | |
| CON-IIT05-049-90, CON-IIT5-49-90, RTR-NUREG-1410 LO-LP-11104-04, LO-LP-11104-4, NUDOCS 9202190616 | |
| Download: ML20092G067 (20) | |
Text
__
t 4
o rM9-9 D GEORGIA POWER POWER GENERATION DEPARTMENT VOGTLE ELECTRIC GENERATING PLANT
?
TRAINING LESSON PLAN 4
s TITLE:
EMERGENCY DIESEL GENERATOR AUXILI3mIES NUMBER:
LO-LP-ll104-04-C LUBE OIL AND CRANK CASE VENTILATION PROGRAM:
LICENSED OPERATOR REVISION:
4 SME:
C.
BREWER DATE:
12/6/89 i
s APPROVED:
DATE O
l' INSTRUCTOR GUIDELINES:
I.
FORMAT A.
Lecture with visual aids g g7$cgt==mff9M*'l7'.'
3,e,r II.
MATERIALS
.'; jgiz eg ; ;, m,
,a.J.=
4 A.
Overhead projector B.
Transparencies C.
White board with markers III.
EVALUATION A.
Written or oral exam in conjunction with other lesson plans a
IV.
REMARKS A.
A performance-based instructional unit (IU) is. attached to the lesson plan as a student handout. After the lecture, instruction should be l
provided for the attached instructional unit.
The instructor should be available to answer any questions that may arise concerning the IU material. After instruction on the IU, the student will perform, simulate, observe or discuss (as identified on the cluster signoff criteria list) the task covered in the inatructional unit in the presence of an evaluator.
VASTER SDPY 9202190616 920116 d
PDR ADDCK 05000424 S
LO-CL 11-05 LICENSED OPERATOR OBJECTIVES LO-LP-11104-C I
PURPOSE STATEMENT Following completion of this lesson, the student will possess those knowledges systematically identified for the performance of the DE AUX - LUBE OIL AND CRANK CASE VENT tasks.
II LIST OF OBJECTIVES 1.
Describe the lube oil keep warm circuit.
M 2.
Describe the engine lube oil pump circuit.
=J Sn 3.
Determine the power supplies for the following components:
O a, tain oil pump M
- b. Keepwarm circulating oil pump g%,
- c. Lube oil keepwarm heater gn ad 4.
Describe the permissives associated with the lube oil keepwarm g d, system.
tg 5.
Explain how lube oil temperature is controlled when the Emergency f,
Diesel Generator is in standby, and when running.
- y J
(KSA numbers: 064000A101) w u
TB. d 6.
Identify the diesel generator trips associatsd with the Lube 011
/N.
System, including 000K402)the setpoints.
{*l#
(KSA numbers:
06 7.
Explain why the keep warm oil is not circulated through the rocker arms or turbocharger when in standby.
8.
Explain how the following situations affect EDG operation:
- a. Failure of engine-driven main oil pump
- b. Failure of cooling system Inoperable lube oil keep warm pump c.
- d. Inoperable lube oil keep warm heater 9.
Describe the permissives associated with the crankcase fan.
10.
Explain how the EDG is protected from an overpressure condition in the crankcase.
(KSA numbers: 064000A104)
Page 1
a e
LO-LP-11104-04-C i
Licensed Operator Objectives far this lesson plan _can be found in tts Ltcensed Operator System Master Plan Se? tion 2.3 (Qualification Signoff Criterir)
Rev 5 Cluster 11 DIESEL CENERATOR i.
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'O-LP-11104-04-c e
INTENTIONALLY LEFT BLANK 3
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LO-LP-11104-04-C
REFERENCES:
1.
Plant-Vogtle Procedures:-
13145
" Diesel Generator"'
l 13146
" Diesel Generator Fuel Oil Transfer System" 14980
" Diesel Generator Operability Test" 13427 "4160 VAC IE Electrical Distribution System" 17035 Annunciator Response Procedures 17038 Annunciator Response Protedures 2.-
Technical Specifications:
3.8.1 Electrical Power Systems, AC sources 3.
" Standby (Emergency)' Diesel Generator," Vogtle Training Text Chapter 16C, VEGP 4.
Plant Manual Chapter 23 5.
P& ids, Logica and other Drawings Piping and Instrument Diagrams IX4DB170-1 1X4DB170-2 Vendor Drawings AX4AK01-27 (Lube-Oil)
AX4AK01-26
-(Jacket Water)
AX4AK01-29 (Starting Air)
AX4AK01-28 (Fuel 011)
Ccatrol Logic Diagrams IX5DN107-1 (DG Fuel Oil System) 1X5DN107-2 (DG Unit Engine) 1X5DN107 (Generator)
+
Elementary Diagrams IX3D-BH-G03C 1X3D-BH-G03D-l 1X3D-BH-G03E 1X3D-BH-G03F 1X3D-BH-G033 1X3D-BH-G03H 1X3D-BH-G03I 1X3D-BH-G03J One Line Diagrams ~
IX3D-AA-A01A' 1X3D-AA-K01A i
6.
Vendor Manuale l
AX4AK01-509 AX4AK01-510 AX4AK01-563 r
I
'4 0
LO-LP-11104-04-C REFERENCES
~
7.
FSAR:
8.3, 9.5.4, 9.5.5, 9.5.6, 9.5,7, 9.5.8 8.
dAP Commitments: None 9.
Instructional Units:
LO-IU-11104-C-OO1 Respond to Lube Oil System Alarms 10.
Transparencies:
l LO-TP-11104-OO1 Lesson Objectives LO-TP-11104-OO2 Lube oil Piping Schematic LO-TP-11104-OO3 Turbocharger Lubrication Conceptual Drawing-l l
l 5
_m e
1 LO-LPall'eU4-04-C III.
LESSON OUTLINE:
'~
NOTES-I.
INTRODUCTION A.
Overview 1.
This lesson describes the distribution, filtering, temperature and pressure control of the diesel engine, both when the engine is running, and when in standby.
-s g
2.
The lesson also presents a separate, but related auxiliary system, the engine's crankcase ventilation system.
3.
Present Lesson Objectives LO-TP-11104-001' B.
This lesson will be presented in the following sequence:
Write on board 1.
General Overview a.
Functions b.
Flowpathe 2.
Component Description 3.
Controls 4.
Instrumentation'and Alarms S.
Operations 6.
Summary II.
PRESENTATION A.
General-Overview 1.
Functions Provide lubrication when engine is running
-a.
1)
Prevents metal-to-met &l' contact at bearings, gears, and turbocharger bearings, by-lube oil pumped from a-
-reservoir to engine components 2)
_ Remove. heat and transfer it to the jacket water system 3)
Remove contaminants from engine oil by straining and filtration i
6
LO-LP-11104-04-C III.
LESSON OUTLINE:
NOTES b.
Provide lubrication when engine is shutdown 1)
To main lube oil header in engine for pre-lubrication of bearings, gears, by an electric motor driven pump 2)
To turbocharger thrust bearings, only at a drip (<.35 gal /hr) 3)
Provide NO engine rocker lube due to possibility of hydraulic lock if oil got into combustion chamber 4)
Warm the oil being supplied, with electric immersion heater 5)
Warmed lube oil prevents extreme viscosities on start and allows quick starts Crankcase Ventilation Function c.
1)
Remove vapors with 2 electrically driven fans 2)
Maintain negative crankcase pressure to reduce oil seepage 3)
Relieve gases in event of a crankcase vapor explosion 2.
Flowpaths LO-TP-11104-002 Engine-driven lube oil circuit a.
objective 2 1)
Lube oil sump tank - two connected reservoirs 2)
Pump suction foot valvo closed when engine off - allows engine LO pump suction to be kept full by keep-warm circuit 3)
Engine L.O.
Pump a) Gear driven by engine when engine is running Objective 3a b) At engine front, 500 gpm 4)
Lube oil cooler
?
LO-LP-11104-04-c III.
LESSON OUTLINE:
NOTES a)
Shell side, oil b) Tube side, jacket water c) Jacket water removes lube oil heat, NSCW removes JW heat 5)
Duplex oil filter selected can be changed with engine running 6)
Selectable lube oil strainers 7)
Main header to distribute oil to engine internals 8)
Turbocharger and Rocker Lube 9)
Pressure regulators a) 2 parallel regulators main header pressure sensed b)
Regulated to hold header pressure at 55 pelg b.
Lube oil keep-warm circuit objective 1 1)
Keep warm heater is thermostatically controlled 3)
Keep warm suction isolation valve 4)
Keep warm pump i
a)
Running when engine is in standby, stops when engine starts b)
Powered by 480 VAC c) 50 pai relief on discharge 5)
Keep warm filter 6)
Keep warm strainer collects particles, including filter element pieces, should the filter deteriorate 7)
Main header c.
Crknkcase Ventilation 8
i LO-LP-ll104-04-C III.
LESSON OUTLINE:
NOTES 1)
Two motor-driven blowers 2)
Expel vapors when engine is running 3)
Discharge through an oil separator 4)
Crankcase air discharged outside DG b1dg 5)
Oil separated flows back to crankcase B.
Component Description 1.
Main Oil Pump a.
Positive displacement, rotary, engine driven o.
Capacity - 500 gpm 2.
Keep-Warm Circulating Pump-a.
Positive displacement, rotary, motor driven pump =
b.
Capacity: 99 gpm i
c.
Rating:
15 HP d.
Powered from 1NBI/lNBO Objective 3b e.
Controls located at local MCC l
3.
Lube Oil cooler-Cooled by jacket water cooling system a.
b.
Flow rates (and temperatures) 1)
Tube side - 900 gpm_(154 F outlet)-
2)
Shell side - 500-gpm_(152 F outlet)-
4.
Lube Oil sump-2 interconnected, vertical 350 gallon sumps a.
b.
Located on the_ auxiliary skid-on either-side of the jacket water standpipe c.
Normal level - 31" Low level alarm - 26" l
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LO-LP-ll104-04-C-III.
LESSON OUTLINE:
NOTES 1
5 Pump suction line - 14" 5.
Keep Warm Heater a.
Electric immersion heater - 45 KW b.
Power Supply - MCC INBI/1NBO Objective 3e i
c.
Maintains oil temperature above 150 F e.
De-energized when diesel is started l
6.
Main Oil Filter a.
Full flow duplex cartridge filter b.
10 micron capability 7.
Strainers'(3) s a.
Full flow single stage b.
80 micron capability c.
Protects engine-against solids if a filter cartridge disintegrates 8.
Crankcase Fans (2) a.
1/3 hp s
- b.. 120 V panel INYII, INYO2-C.
Controls 1.
Lube Oil Keep-Warm Pump a.
START /STOP/ AUTO handswitch on 480 V MCC 1NBI/lNBC.
b.
Auto STOP on engine start and run
" Engine [ Running" signal, 200 rpm c.
Auto START when engine is not running if Objective 4 power available to 1NBI/lNBO (Non-lE 480V)
(partial) 2.
Lube Oil Keep-Warm Heater AUTO /OFF handswitch on 480:V MCC IN8I/lNBO a.
L w.. - -
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- " - ~ ~ ~
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_..~....... _. _. _.. -.. _ _ _
LO-LP-ll104-04-C-III.
LESSON OUTLINE:
NOTES b.
Heater energizes if in AUTO and Objective 4 (partial) 1)
L.O. keep-warm pump running, and 2)
Thermostat detects low temp 3)
Power available to lNBI/lNBO (Non-lE.
480 V) 3.
Diesel Generator Trips Objective 6 a.
Turbocharger Oil Pressure Low 1) s 15 psig 2)
Alarm, no trip, on emerg. start b.
Lube oil temp high 1) 200 F lube oil temp return from engine 2)
Alarm, no trip, on emerg, start Low Pressure Lube. Oil Trip c.
Objective 8 (partial)-
1) 2/3 engine header pressure sensors
< 30 peig 2)
Shuts down DG if normal started RI emergency started 3)
" Low 011 Pressure Sensor Malfunction" alarm if 1/3 sensor malfunctions 4)
Bypassed during startup to allow engine operation D.
Instrumentation and Alarms 1.
Panel at Engine Skid Front L.O. pressure, keep-warm pump (in or out) a.
1)
Normally aligned to show disch.
pressure 2) can be' aligned to show suction pressure.
3)
- 30 to 0 in Hg vacuum, 0-60 peig.
pressure L
11
_.m._.__._
m..
LO-LP-ll104-04-C III.
LESSON OUTLINE:
NOTES b.
L.O. pressure, KW filter diff. 0-60 paid t
c.
L.O. pressure, KW strainer diff. 0-60 paid
- d..
L.O. pressure, engine pump - IN/OUT 1)
Normally aligned to indicate disch.
pressure 2)
Can be aligned to show suction pressure 3)
- 30 to 0 in Hg. vacuum, 0-100 psig disch e.
L.O. pressure, filter diff 0-60 paid f.
L.O. pressure RB strainer diff 0 - 60 paid g.
L.O. pressure LB strainer diff 0-60 paid 2.
Indications on Engine Control Panel PDG 2/4 a.
Turbo oil pressure right/left b.
Lube oil pressure Diff. pressure lube oil filter c.
d, Lube tank level 1)
Push to read 2)
" Bubbler" instrument 3.
Alarms (both PDG2/PDG4 and QEAB) a.
Low temp. lube oil - in b.--
Low temp lube oil - out c.
High temp. lube:oll - in d.-
High temp. lube oil - out e.
Trip - high temp. lube oil f.
Low level lube oil g.
Low pressure lube oil h.
Trip, low pressure lube oil 12
. _,,.., ~ - -. _ _
,...- -._...._ _ -.. ~. _. -., _.
l LO-LP-11104-04-C III.
LESSON OUTLINE:
NOTES 1.
Low pressure turbo oil - right j.
Low pressure turbo oil - left k.
Trip low pressure turbo oil 1.
Hi dp lube oil filter Low oil pressure sensor malfunction m.
n.
Switch not in AUTO 4.
Crankcase Ventilatior. Instrumer.tation and Alarms a.
Crankcase fan permissives Objective 9 1)
Start on engine start 2)
Stop on engine stop b.
Instrumentation 1)
Linuid filled manometer a) U-tube b) Right side connected to engine crankcase c.
Annunciator, PDG2/4 and QEAB 1)
DG trip, high crankcase pressure a) Engine trips at 3 peig crankcase pressure b)
Indicative of an explosion inside the crankcase E.
System Operations 1.
Lube oil Temperature control Objective 5 a..
Engine running 1)
Lube oil temperature will try to vary.
with engine load.
2)
Normal range 142 F to 170 F Procedure 12145-1 3) 500 gpm lube oil floweithrough L.O.
13
LO-LP-ll104-04-C III.
LESSON OUTLINE:
NOTES cooler 4)
Lube oil temp increase a) JW temp increase b) JW temp control' valve increases NSCW flow b.
Engine in standby 1)
L.O. keep warm pump running 2)
Thermostat causes KW heater to energize /de-energize.
3)
Normal range 142 F.to 170 F 2.
Lube Oil Pressure Control-Two parallel pressure regulators a.
b.
Bypasses part of main pump discharge c.
Relieves to oil sump d.
Main header pressure sensed, regulated to 55 poig
- e.. Protects engine from oil over-pressurization, especially-if cold 3.
Loss of Heaters Objective 8 (partial)
Large engine mass _ retains heat for long-a.
tLae b.
DG NVAC keeps room >50 F Start DG-and warm as needed'until heater
-ARP'17035-1 c.-
restored d.
Detected by alarms -
'l)
Low temp lube oil - in 2). Low temp lube oil - out 4.
Loss of KW Pump Objective 8 (partial)
Detected by low lubo oil temp alarms a.
14 f
LO-LP-11104-04-C III.
LESSON OUTLINE:
NOTES b.
DG inoperable c.
Engine placed in maintenance mode to prevent start d.
Potentiel to damage engine bearings otherwise 5.
Prelube of Turbocharger Bearings LO-TP-11104-003 Drip lube - orificed oil to turbocharger a.
bearings 1)
Present when KW pump running 2)
Supplied after KW strainer b.
Prelubricatient 1)
Done for planned engine starts 2)
PEO opens prelube valve 1 to 2 minutes Valve-prior to engine start.
Recloses it 1-2403-64-130 after start (131) 3)
Supplies lube oil to turbocharger thrust bearings 4)
Bypasses turbocharger drip orifices -
supply comes off prior to KW oil strainer Keep warm oil is not circulated through the FSAR-Q430.34 c.
rocker arms or turbocharger during standby objective 7 operation 1) could result in hydraulic cylinder lock due to leaking guides 2)
Could cause fires due to leakage through turbocharger bearing seal to the exhaust gas chambers 3)
-Check valves prevent flow to rocker arms; drip system lubrication 1-provided to turbocharger bearings'-
d.
shift supv. notified of-all' diesel starts -
specify whether DG start included-prelubrication 6.
Failure of Cooling System
--Objective 8 15 i
l J'
t T
1 i
I LO-LP-11104-04-C t
111.
LESSOli OUTLINE:
NOTES (partini) 4.
High lube oil temperature 1
j b.
Engine trip on high jacket water temp 7.
Lube oil Hakeup 4
Makeup oil usually added directly to sump Procedure 13145-1 n.
via 4.4.4 3
1)
Dipstick tube 2)
Electric cr hand-driven pump b.
Estimated consumption rate 1 gallon per FSAR Q430.35 7000 KW/ hour t
1) 6000 EW is maximum safety relat.t post-LOCA load 2)
Results in 144 gallon consumt Un
='
7 days i
1.e., no makeup required for
- st 7 I
1 t
days following LOCA 3)
Do will run unattended as long as b
sufficient lube oil exists to maintain lube oil pressure greater than 30 geig
^
or jacket water temp less than 200 F sump level approx. 1" for every 55 gal.
c.
lube oil 9.
Crankcase Ventilation System a.
Normal manometer Reading Manometer right riie connected to crankcase-1)
Slight negative a)-
2" to 2.5" H O unloaded' I
2 b) 1.5" to 2" loaded 2)
Less, with leaky valve covers or side Readings-differ' covers
. engine to engine,-
but vacuum will be
, greater unloaded' than loaded, duo' to blow-by c.
Manometer reading expected with fans off 16 e
i 9
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LO-LP-11104-04-C III.
LESSON OUTLINE:
NOTES and engine running 1)
Slight positive pressure, 1/2 co 1 inch H O 2
2)
Occurs on safety injection, since CC fans are Non-1E and de-energized d.
Relief doors open at approx. I 1/2 psig From FSAR Q430.30 positive to relieve smoke / vapors to diesel Objective 10 room (partial)
Engine Trip - crankcase overpressuro Objective 10 e.
(partial) 1)
Explosion of vapore inside crankcase 2)
Detector near right - sido crankcase fan 3)
Occurs at 3 psig positive CC pressure 4) smoke, possible explosive vapore in DG room 5)
If doubted about whether trip was real or not, on an actual 3 poig over-pressurization, fluid will be blown out of manometer 6)
Personne', should stay away from the sides of the engine should internal engine noises appear 1)
Failed bearings, piston selauro can cause hot spots to ignite vapors III.
SUMMARY
A.
Review Lesson Plan Objectives l
1.
DESCRIER THE LUBE OIL KEEP WARM CIRCUIT See Section II.A.2.b 2.
DESCRIBE THE ENGINE LUBE OIL PUMP CIRCUIT l
See Section II.A.2.a 3.
DETERMINE THE POWER SUPPLIES FOR THE POLLOWING OOMPONENTS:
a.
MAIN OIL PUMP 17
i f
i t
LO-LP-11104-04-C III.
LESSON OUTLINE:
NOTED a
i t
Fngina-driven i
i b.
KEEP WARM CIRCULATING OIL PUMP I
1NB2/1NBO i
c.
LUBE OIL KEEP WARM HEATER 1NBI/1HBO 4.
DESCRIBE THE PERMISSIVES ASSOCIATED WITH THE i
I LUBE OIL KEEP WARM SYSTEM 1
Pump - Start when engine stopped and stop when I
engine > 200 rpm Heater - Energizes if pump running and thermostat detects low temp 1
5.
EXPLAIN HOW LUBE OIL TEMPERATURE IS CON 140LLED WHEN THE EDO IS IN STANDBY, AND WHEN RUTIMING See Section II.E.1.a and b 6.
IDENTIFY.THE DIESEL'CENERATOR TRIPS ASSOCIATED l
4 WITH THE LUBE OIL SYSTEM, INCLt'0ING THE SETPOINTS Turbocharger Oil Pressure Low; $ 15 peig; trip on normal start only Lube 011 High Temp; 2 200 F;-trip on normal start only Low pressure Lube Oil Trips.2/3 < 30 psig;
'7 trip on normal or on.orgency start I
7.
EXPLAIN'WHY THE KEEP WARM OIL IS NOT CIRCULATED THROUGH THE ROCKER ARMS OR TUR50 CHARGER WHEN IN STANDBY See Section II.E.5.c d.
EXPLAIN HOW THE FOLLOWING SITUATIONS AFFECT
-EDO OPERATION:
a.
FAILURE.0F ENGINE-DRIVEN MAIN OIL PUMP b.
FAILURE OF COOLING SYSTEM P
c.
INOPERABLE LUSE OIL KEEP WARM PUMP l
18
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LO-LP-11104-04-c III.
LESSON OUTLINE:
NOTES l
d.
INOPERABLE LUBE OIL KEEP WARM HEATER see section 22.2.3, 4, and 6 9.
DESCRIBE THE PERH1'581VES ASSOCIATED WITH THE CRANKCASE FAN starts and stops with engine 10.
EXPLAIN HOW THE EDG IS PROTECTED FROM AN OVER-PRESStfRE CONDITION IN THE CRANKCASE See Section II.E.9.d and e I
+
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