ML18142A804
| ML18142A804 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 01/18/1978 |
| From: | White L Rochester Gas & Electric Corp |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| Download: ML18142A804 (68) | |
Text
REGULATORY DISTRIBUTION FOR REC:
NRC ORG:
WHITE L D ROCHESTER GAS 5 ELEC DOCDATE: 01/18/78 DATE RCVD: Oi/23/78 INFORMATION DISTRIBUTION SYSTEM (RIBS>
INCOMING MATERIAL 50-244 DOCTYPF:
LETTER NOTARIZED:
NO COPIES RECEIVED
SUBJECT:
LTR 1
ENCL 1
FORWARDING RESPONSE TO NRC"S REQUEST OF 12/15/77 FOR QUESTIONNAIRE RESPONSE FOR STUDY OF STANDBY DIESEL GENERATING UNITS.
PLANT NAME: RE GINNA UNIT 1
REVIEWER INITIAL:
XJM DISTRIBUTOR INITIAL:
DISTRIBUTION OF THIS MATERIAL IS AS FOLLOWS +44++<4<44+++4%%<+
DISTRIBUTION OF "RELIABILITYOF STANDBY DIESEL GENERATOR UNITS" PER J.
(DISTRIBUTION CODE A014>
FOR ACTION:
INTERNAL:
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B QNGH~G ~F SCHWENCER++W/7 ENC REG FILE++W/ENCL F~W'/ENC HANAUER++W/ENCL E ISENHUT4+W/ENCL BAER~~W/ENCL GRIMES+<@/ENCL J.
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780240040 THE END
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/////////ZZ I/ I Viui'2I"lIILi'ilm'OCHESTER GAS AND ELECTRIC O'IIJIjfgD@.IQ F15( tIop(
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. IIAIC CORPORATION o
89 EAST AVENUE, ROCHESTER, N.Y. 14649 LEON D. WHITE. JR.
VICE PRESIDENT TELEPHONE AREA COOK TIS 546.2700 january 18, 1978 Director of Nuclear Reactor Regulation, U. S. Nuclear Regulatory Commission Washington, D. C.
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Dear Sir:
Enclosed herewith is our response to your request of December 15, 1977 for questionnaire response for your study of standby diesel generating units.
Our response to the questionnaire contains no information that is considered proprietary.
Very truly yours, L. D. White, jr.
Enc.
7g02P0040
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Name of res ondent Charles V. Hartlieb Results and Test Engineer R. E. Ginna Nuclear Power Plant c/o Rochester Gas and Electric Corporation 89 East Avenue Rochester, New York 14649 Tel.
716/546-2700, extension 291-216
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Questionnaire for NUCLEAR REGULATORY COMMISSION RELIABILITYSTUDY of Standby Diesel Generator Units Date Questionnaire Completed:
January
- 18. 1978 Plant Name:R. E-.alnna Nuclear Power Plant Unit No.
1 Diesel Manufacturer:
Alco Products Inc.
Model:
16-251F Number of Units:
Size Kw/Unit:
1950 Rated Speed:
900 RPM Average Operating Hours Per Unit to Date:
"A" - 520; "B" 638 DIESEL GFNERATOR STATUS A.
~En lne:
1.
Problems are caused chiefly by (give estimated number) a.
b.
C ~
d.
Defective parts Installation errors:
0 Failure of system to respond properly in function or sequence:
0 Faul ty adjustment:
0 2.
Mould more stringent inspection and testing requirements during acceptance or preoperational tests significantly improve the diesel-generator power plant performance?
Yes Ho X
B.
Startin S stems (indicate which):
1.
Air-to-cylinder cranking.
Air cranking motor X
Mfr.
Rand Co.. Model No. P41EH-1 Electric cranking motor Mfr.
llodel no.
- 2. If air cranking, then:
Give size of starting air tank:
Length 7 ft. 'iameter 2 ft.
Normal standby air tank pressure 235 psi.
Is pressure reducer used?
Yes X
No Reducer pipe size?
I-'nches.
Starting air control admission valve pipe size in air piping system, 2
'nches.
Minimum air tank pressure for engine cranking 7O psi.
Number of five-second cranking periods between above pressures with no tank recharging 9
Number of air tanks per engine Can starting air tanks serve more than one engine?
Yes X
No Is air pipe to engine from top of air tank?
Yes X
No
" Does starting air tank have water condensate drain?
'es X
No Does starting air pipe have water condensate trap and drain near engine?
Yes No X Is starting air pipi ng horizontal?
Yes X
No Does it slant toward drain?
Yes No X
If water condensate drains are provided,=then is draining:
a.
Automatic through float valve?
Yes No b.
Manual by hand valve?
Yes ~ No
- c. If manual, then is draining water condensate done:
&3%
= daily?
X weekly?
monthly?
before each start if manual?
no procedure?
If Is dirt and rust filter provided in starting air pipe?
Yes No X
If provided, where installed?
NA How is it cleaned?
NA How often and when?
NA Give pipe size of filter:
NA inches.
How is it known whether filter is plugged or has high oressure drop?
NA Is starting air pipe to engine positioned:
a.
Below floor?
b.
On the floor?
c.
Overhead?
X What is air pressure drop from air tank to engine during cranking psi pressure reduced to 150 psig for eir start motor Give approximate length (nearest ten feet) of star ting air pipe for individual engine or all engines from air tank to:
a.
Nearest engine 30 feet b.
Furthest engine feet
4 Diameter of starting air pipe from:.
a.
Air tank to starting valve 2
inches b.
At air starting valve 2
inches c.
At engine l2 inches What is the primary source of power for the starting air system?
Electric motor compressor set Is there a duplicate and redundant motor and air compressor set?
Yes No X
What is the time required to recharge one air tank?
30 minutes Does starting air supply system have independent secondary power supply for compressor?
Yes No X If yes, then by:
a.
Gasoline engine?
b.
Motor driven?
c.
Other? (Specify~
3.
If electric (Battery powered)
- cranking, then:
a.
Battery charging:
Continuous trickle charger NA Intermittent charging If so, how is charging requirement determined?
Time cycle Test Other NA b.
Battery used:
Common Plant Individual Unit Other NA Starting cable size NA
- Length
Battery to engine (longest)
C. F~10i1S:
lkT k
T k
1.
Does the bulk tank to day tank fuel supply system (viz:
pump, motor, etc.)
have redundant independent power supplies?
Yes No X
Does this system have a hand-operated emergency fuel pump?
Yes No X
If yes, is this hand-operated pump and piping in immediate operating condition?
Yes No 2.
Is there a water and sediment drain from the very bottom of the:
a.
Bulk tank?
Yes No X
b.
Day tank?
Yes X
No 3.
Is the reqular functional fuel oil outlet slightly above
( two to three inches) the bottom of the:
a.
Bulk tank?
Yes X
No b.
Day.or. integral.tank?
Yes X
No 4.
Is bottom of day tank and/or inteqral tank above all parts and piping of the enqine fuel injection systems?
Yes No X
If yes, Give approximate amount inches
.feet 5.
Does the engine fuel system have a fuel bleed return line to the fuel day tank and/or integral tank?
Yes X
No
'uring extended operation, such as more than two to three
- hours, does the fuel in the day tank become:
(yes or no) a.
Warm?
Yes b.
Hot?
(above 130'F)
What is fuel oil return line size (nominal)?
a.
Pipe size Z
inches b.
Tubing size inches 6.
Do engine fuel oil filters have air bleed or vent valves readily accessible?
Yes X
No (duplex filters) 7.
How is fuel transferred from day tank to engine fuel system?
a.
By gravity b.
Engine driven pump X
c.
Electric motor driven pump d.
Is a manual pump also provided for injection system filling and/or air venting after servicing or replacement of parts in the fuel injection system?
Yes X
No If yes, is the manual pump in immediate operating condition?
Yes X
No 8.
Type of fuel (e.g., ¹1, ¹2, ¹3, JP-4, etc.)
42 9.
Approximate bulk tank capacity, 12,000 gallons.
- 10. Typical frequency of refilling (weekly, monthly, etc.)
8/rear
- 11. Typical refill (gallons),
1,000 gallons 1.
Lube oil Type Mobil: Delvac 1240 b.
Viscosity SSU 790 100oF c.
Specification number MIL-L2104B d.
Oil change determined by:
Time interval:
Yes No Give interval monthly, yearly By oil analysis:
Yes X
No
2.
Lube oil filters are:
a.
Full flow X
b.
Bypass c.
Combination 3.
Interval and/or basis for changing filter cartridge:
a.
Monthly b
.Yearly X
c.
By rune>ng tsme hours d.
By oil analysis.
Yes No e.
By pressure drop.
Yes No f.
Does provisions exist for changing cartridges during engine operation?
Yes No X
4.
Oil Pressure Monitoring a.
Normal operating pressure 75 psi b.
Alann 60 psi c.
Shutdown 40 psi 5.
Oil temperature control:
a.
By standby heater in engine sump
>2O
'F.
b.
Heating means for maintaining standby temperature:
Direct in oil X
Bil-to-water. heat exchanger Other (Specify)
E.
Coolin S stem - En ine Mater 1.
Temperature control by:
a.
By thermostat in water?
Yes X
No If yes, then:
Bypass thermostat?
Yes X
No Throttle thermostat?
Yes No b.
By radiator shutter:
Automatic Manual Other (give type) 2.
Corrosion control (water additive)?
Yes X
No If yes, give chemical additive or name of compound.
Potassium Chromate
(~ 2,000 ppm)
Proportion or concentration control:
a.
By additive measurement?
Yes No b.
By water coolant analysis?
Yes X
No 3.
Engine cooling water cooled by:
a.
Radiatorf b.
Heat exchanger from sea, river or other water?
Lake c.
Other?
(give type) 4.
Engine cooling water temperature-monitoring a.
Standby temperature 115
'F b.
Normal operating temperature 155
'F c.
Alarm temperature 175 F
,d.
Shutdown temperature ~N
'F e.
Water circulation during standby:
Thermo-syphon X
Pump 5.
Water Pressure Monitoring:
a.
Alarm X
b.
Shutdown NA c.
Both NA Yes X
No
6.
Water temperature Sensor Position:
a.
In piping, from engine X
b.
In engine piping c.
In engine direct 7.
Water surge or supply tank in system.
Yes X
No If yes, then bottom connected to:
a.
Water pump suction?
Yes X
No b.
Top of system?
Yes No c.
Both of above?
Yes No d.
Is bottom of surge tank above top of engine system?
Yes X
No e.
Does engine have constant air bleed from top of engine water piping to surge or supply tank?'es X
No f.
Give size of bleed or vent line, 3/4 inches.
g.
Manual air bleed only?
Yes No X
F.
Governor - S eed Control Hanufacturer Woodyard Electric (speed sensing Yes 8ydraul ic's Type or code such as EGB-35, LSG-10, etc.)
Automatic load sharing?
Yes
. X No KGB l.
Is compensation or stability control and/or. speed of response manual ly adjustabl e?
Yes X
No If yes, ad,iusted by:
a.
Eye and ear?
b.
Test and specification'?
c.
Other?
(Specify) 2.
Engine - generator normal shutdown or stopping means and method.
Is the engine stopped:
a.
manually?
Yes No If yes, then:
Directly at engine?
Yes No Through local control panel?
Yes No b.
Automatically through the controls in the control room?
Yes No c.
By setting governor to "fuel-off" position?
Yes No d.
By over-ride of governor settings and control position directly to fuel injection pumps?
Yes No e.
Other means.
Describe briefly.
U 3.
When engine is stopped, is fuel control in:
a.
Full-fuel or maximum 'fuel position?
b.
Full off or no fuel position?
X c.
Intermediate?
d.
Random?
(If not consistent and typical in above, then give the usual.)
4.
When starting from the standby condition after shutdown for at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, give number of seconds from start-to-crank to full fuel or maximum fuel position of governor and fuel control, I
seconds.
G.
Governor - Overspeed (shutdown) 1.
Soeed sensing?
a.
Electrical b.
Flyball X
c.
Other (Speci fy) 2..
Fuel-shutoff force generated by:
a.
Spring?
b.
Air?
c.
Hydraulic?
X d.
Electrical?
e.
Other?
(Speci7yy 3.
Overspeed sensing setting'?
(in terms of full speed) a.
115%
X
~b.
110'X c.
Other~Specify) 4.
Is overspeed tripping set point tested periodically?
Yes X
No If yes, then how often?
Yearly (yearly, monthly, etc.)
H.
1.
Generator hifr. Westin house Model No.
HG-5 gl gl 1
1 g
1 ggg Does generator have damper windings?
Yes X
No 2.
Does generator have any obvious fault or difficulty?
Yes No X
Is problem repetitive?
Yes No If yes, then describe briefly.
I.
Exciter and Volta e Regulator l.
Exciter Manufacturer: Basler Ele'ctric Co t<odel SBSRLV Type:
Rotating Static X
lf rotating drive?
Oirect Belt or Chain DC with field control Brushless with rectifier 2s Voltage Regulator:
Manufacturer Busier Electric CcModel SOS RLV Type:
Hechani cal Static X
3.
Are paralleled units of automatic load sharing control of fully automatic type?
Yes X
No If yes, has any obvious influence or interrelationship been noted between the stability and response time of the engine governor and the stability and voltage control of the generators?
Yes No X
4.
Have engine governor and voltage regulator/exciter adjustments been made on the site or under any con-ditions since any of the units have. been placed in service?
Yes X
No If yes, by means of what tests and what standards?
Give name or very brief description.
over speed trip test 5.
If any difficulties have occurred, give approximate number of problems.
a.
Components NA b.
Wiring NA c.
Other (damage in service or dropping of miscellaneous hardware into switchboard, etc.)
NA J.
Parallelin:
En ine-Generator Units l.
Do all units consistently have the proper voltage output?
Yes X
No 2.
Do all units automatically share both the "real" or in-phase load and also the reactive load reasonably well?
Yes X
No 3.
At the same Kw load, are both the field and the armature line currents of the several units consistently close to.the same value?
Yes X
No If no, approximate percent differ ence.
4.
Synchronizing a.
In automatic synchronizing do circuit breakers close immediately after reaching full synchronous speed'?
Yes NA No NA b.
If "no" above then, does speed of some units drift slowly while failing to synchronize and close circuit breakers?
How many seconds?
Occasionally Always Never (other than exciter/
a.
Components 2
b.
Wirina NA c.
Other (damage in service or dropping of miscellaneous hardware into switchboard, etc.)
NA d.
Design concept faults.
That is, does the switch qear and its controls perform the proper functions and in proper sequence and timing.
NA K.
Switch Gear and Electrical Con voltage regulator
- l. If any difficulties have occurred, then give approximate number of problems.
d 2.
a.
Oo the on-site diesel generator units and related support equipment have any storage battery power systems for any service whatsoever?
Yes X
No b.
Identify each storage battery power system associated with the on-site 'diesel generator unit and its function.
Redundant su I
from lant batte banks for G
d<<d~
c.
Ooes each system identified above adequately fulfill the service requirements for which it is intended?
Yes X
No If no, briefly describe.
d.
Is there a
OG battery maintenance program?
Yes X
No L.
Safet Shut downs Give safety shut down settings compared to equilibrium operating conditions.
1.
Engine and generator speed.
Give rpm or hertz:
a.
Synchronous and usual g00 rpm or 60 Hz b.
Overspeed shutdown setting 1010 rpm or 67 Hz 2.
Engine cooling water (see E.4) d a.
Equilib'rium
'162 'F b.
Alarm 176 F
c.
Shut down NA
'F 3.
Lube oil pressure (see 0.4) a.
Equilibrium 7S psi b.
Alarm 60 psi c.
Shut dopwn psi 4.
Lube oil temperature a.
Equilibrium l70
'F b.
Alarm '85~
c.
Shutdown NA
'F 5.
Indicate all other protective interlocks (give name and;)
a.
Usual or proper condition NA b.
Shutdown condition Reverse power trip, overcurrent trip, overcrank tri, overs eed tri, C. B. control switch and local pushbutton trip 6.
a.
What source of power is provided to operate alarms and shutdown controls?
(See G.2)
Station battery banks b.
Do the generator units automatically shutdown in case'f the electrical power loss to its control system?
Yes No X M.
Emer enc or Alert Conditions 1.
Are all safety shutdown and safety interlocks bypassed during emergency conditions?
Yes No
- 2. If "no" above, then which are not bypassed.
Name items.
overs eed tri, overcrank tri low lube oil ressure trip, control board control switch trip 3.
For each interlock not bypassed is coincident logic used?
Yes No X
If yes, is it testable?
Yes No N.
Maintenance 1.
Does plant have regularly scheduled maintenance pro-cedures?
Yes If so, return copy of these procedures with questionnaire.
2.
When need for minor adjustments obviously exists, then:
a.
Is remedial action taken immediately or at earliest practical opportuni ty?
Yes X
No b.
Is remedial action taken only at periodic prescheduled or programmed times and conditions?
Yes No X
c.
For best performance record which of above appears better:
immediate or early action?
X as scheduled only?
d.
Must permission for minor maintenace be obtained from some higher out of -p1a-nt authority?
Yes No X
e.
Is maintenance referred to above allowed and encouraged?
Yes X
No f.
In periodic surveillance tests, simulated alert standby tests, etc., is the criteria "pass/not pass" the test used?
Yes X
No g.
Is there a conscious continuing policy to detect and remedy marginal conditions or imminent trouble:
for examples:
lube oil pressure shutdown only two to five psi below operating pressure or, perhaps overspeed governor setting only one or two perceht above starting speed surge or etc.?
Yes X
No h.
Are efforts to remedy marginal or questionable conditions as mentioned above encouraged by plant management?
Yes X
No Are remedial steps on items similar to the above taken or allowed when the unit has started and operated satisfactorily within specified limits or conditions?
Yes X
No 0.
Startin Conditions 1.
Give 'starting or necessary cranking time as.experienced.,
a.
Starting time per specification 10 seconds b.
Usual starting time 8 to 9 seconds c.
11aximum starting time observed 12 seconds 2.
Give usual time intervals as follows:
a.
Time from start-to-crank to first firing of any cylinder.
3
. seconds b.
Time from start-to-crank to approximate full firing of al 1 cylinders.
6 seconds 3.
Give maximum speed surge when starting; use both tachometer and frequency meter if possible; a ~
b.
Usual conditions rpm
- 61. 2 Hz Maximum observed rpm 61.2 Hz 4.
During a surveillance test, give time from start-to-crank to when steady synchronous speed is attained and maintained.
a.
Usual NA seconds b.
Maximum NA seconds c.
As specified NA seconds.
5.
Give briefly the most troublesome problems in starting.
Governor hydraulic booster for fuel rack opening upon a.
Host troublesome D G start.
Re laced with air booster no problem since replacement.
b.
Next to most troublesome D/Gs do not have enou h operating time to realistically evaluate.
P.
Air Cleaner or Air Filter - Combustion Air 1.
Combustion air source:
taken from engine room or inside the building, or from outdoors?
a.
Indoors b.
Outdoorsl1 2.
Give type and make of air cleaners or air filters:
a.
Oil bath Hake b.
Oil wetted screen Hake c.
Paper Make d.
Dh Wake Do111n er Cor e.
Precleaner:
Yes No 3.
Excessive air flow restriction and servicing need determined by?
a.
Instrument such as:
manometer b.
Persona!
judgement by appearance, etc.
c.
By smoking exhaust d.
Time schedule X
G h
tEp il'1 4.
Are climatic extremes normally experienced such as:
a.
Air heavily loaded with water mist, high humidity and low temperature?
Yes No X
b.
Blowing sand and dust'?
Yes Noo~
c.'lowing snow (blizzards)?
Yes No~
d.
Other-Name none 5.
Are climatic extremes potentially possible such as:
a e b.
c ~
d.
Air heavily loaded with water mist,'high humidity and low temperature?
Yes No Blowing sand and dust?
Yes No X
Blowing snow {blizzards)?
Yes No 1{
Other-Name none Tem erature Conditions 1.
Ambient outside hottest 100
'F.
B.
Ambient outside coldest 0
'F.
3.
Engine-generator room hottest 100
'F.
4.
Engine-generator room coldest 00
'F.
5.
Inside switch gear hotte'st 6,- Inside voltage regulator or ambient near voltage regulator hottest
>00
'F 7.
Ambient at exciter hottest 100
'F
1
~
~ R.
0 erator ualifications (as presently exists, and suggested minimums if different 1.
Minimum education required (check)
~Existin
~Su ested a.
High School b.
Trade School c.
Technical School d.
No minimum 2.
Minimum Years of operating experience (diesel electric generator)
~Existin
~Su ested a.
0-3 b.
3-6 c.
6-10 d.
10-15 X
3.
Operator training
~Exi stin Suquested a ~
b.
c ~
d.
Military Industrial On-the-job Combination of a, b, and c (indicate which) 4.
Licensing required a.
State b.
Federal c.
Utility or self d.
None Existina
~Su aested S.
Are any ~forei n ~ases such as propane, freon, halon, carbon dioxide, etc. stored in the:
Diesel Engine room?
Yes No X
or adjacent buildings?
Yes No X
If yes, (other than hand portable fire extinguishers),
then identify gases and give approximate tank size.
3 Gases Volume (ft )
T.
Does control system automatically bypass, in emergency
- starting, any engine temporarily out of service for maintenance?
Yes No X
If yes, then how many failures to bypass have occured?
U.
Does the control system automatically override the test mode under emergency conditions?
Yes No X
V.
Have repetitive mechanical failures occurred in any component part or subsystem of the engine, generator, or switch gear, etc.?
Yes No X
If yes, then which part or subsystem?
n How-many "failures?
Give nature of failure.
W.
Would periodic (yearly or other) evaluation and/or testing by "outside experts" contribute significantly to the diesel-generator reliability?
Yes No Give brief reasons for the answer.
Adequate testing of D/G is erformed b lant ersonnel via monthl earl sur-veillance and maintenance tests checks.
Durin earl maintenance check the diesel'manufacturer's re resentative is on site.
a X. l.
Give the accumulated time-load operating record for each diesel-generator unit from installation to the present (Running Hours):
\\
\\
Preoperational test Date 7/69 Engine:
Surv. Testing 8:
Emergency:
Total
- Serial Ho.:
Maintenance Hrs.:
and Other:
Hours No Load
- Loaded Service Hrs.
9689 30 100 390 520 9688 30 100 508 638 2.
3.
Surveillance test load (percent of continuous ratina)
Give the projected or planned time-load operation for each diesel-generator unit during the next 12 months.
100
- Surveillance
- Maintenance Hrs.
Emergency Total and other Hours Service Hrs.
20 20 4.
Provide the following summary of the periodic surveillance testing experience:
a.
Starting date of surveillance testing (OL date)
November 1969 b.
Periodic test interval, monthly and refueling outage c.
Total number of sur veillance tests performed 256 d.
Total number of test failures 3
failure to start failure to accept load faiIure to carry load t
failures due to operator error 1
failure due to equipment not being operative during emergency condi tions 0
e.
Supply a copy of the surveillance test procedures with this completed questionnaire.
Additional Comments 1.
D/Gs were used intermittently during early plant operation (1970) for power generation..This practice has since been discontinued.
Currently power is generated only during surveillance testing or when plant Tech. Specs.
require one D/G to be in service.
2.
D/Gs must be manually sunchronized to their respective safeguard buses during surveillance testing.
3.
D/G tie breakers are closed auto'matically to safeguard buses only after off site power has been lost.
Times noted in O. l.a thru c are from bus de-energization (off site power) to bus voltage restoration by D/Gs.
Y.
General Su estions Briefly give constructive criticism or suggestions as to improvement in reliability of the diesel generators.
These
~ remarks may cover tests, maintenance, practices,
- orders, policy, adjustments, etc.
l..
Allpersonnel who willbe associated with operating, maintaining and testing responsibilities be thoroughly and formally familiarized with the D/G's and their associated support and control systems.
2.
Strict adherence to manufacturers'aintenance recommendations for units, commensurate with running time hours.
3.
Develop a comprehensive series of surveillance procedures to fulfill
'the following requirements.
a.
at least yearly verify emergency start mode and proper automatic safeguard load assumption.
b.
at least yearly verify all protective alarm and trip circuitry functional.
c.
at least monthly synchronize units to outside power grid and load units to at least long term KW rating for a sufficient period of time to assure satisfactory operation.
~
4 I
ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLZD COPE ~E'ER GINNA STATION UNIT g1 COMPLETED OATE:-
TIME:-
PROCEDuRE NO M-15 REV NO.
2 DIESEL GENERATOR MAINTENANCE TECHNICAL REVIEW 1 76 APPROVED FOR USE PLANT SuPERINTZNDmrZ
~"""
4 1976 DATE QA~ ROE+A LIEEHM NONPZR <MiEVi".
DISPOSITIVE DATE TEES PRCCEOUR"-
COViZABIS 4
PAGES RZCEIVED CBPZRAL RECORDS:
DATE:
3:
DIESEL GENERATOR MAINTENANCE
1.0 PURPOSE
To describe the steps for starting and loading a Diesel Generator, in accordance with Plant Technical Specifications, during a period when the other Diesel Generator is to be held for maintenance 2.0 REF ERENC ES:
2.1 Plant Technical Specifications - Sections 3.7 and 4.6 2.2 Alco Instruction Manual TPl-891 for Diesel Generator sets Model 16-251F
3.0 INITIALCONDITIONS
3.1 One diesel generator has been determined to be inoperative when the reactor is critical.
4.0 PRECAUTIONS
4.1.
In the event that both diesels are determined.to be inoperable, an orderly shutdown to the hot shutdown condition will commence immediately.
4.2 According to the Technical Specifications,
.(Paragraph 3.7.2b.),
if one of the diesels is out of service the r'eactor may be main-tained in the critical condition if the remaining diesel is run continuously. If. the remaining diesel was to be run continuously at no load, coking might-occur, making the diesel incapable of accepting heavy loading if needed.
On the other" hand the diesel could be run paral'lel to normal station power.
A'oss of outside power in:this case
- however, would at least require the changing of the positions of the unit.-parallel switch and the,.manual-auto switch.
At best there would be some frequency and voltage fluctuations and at worst there exists the possibility of overcurrent and/or overspeed trips.
To avoid these difficulties, the diesel to be run should be run carrying a load of over 500 KW on one of its respective safeguard
- busses, which in turn has been separated from its normal power supply.
This procedure is written to achieve this end.
5.0 PROCEDURE
5.1 Notify the load dispatcher of diesel start and loading.
5.2
'Insure that the "Auto-annual."'wit'ch; is. in the auto.-'position~and that; the -"Unit-Parallel" switch. is in the unit position>
and then
-start. the diesel which is still.oper ative.
5 3
In Step 5..4 below'the diesel will be connected to its bus in the screen house immediately after tripping the normal feed to bus~
The loss of normal feed to the bus
. will cause the tripping of service water pumps, intake heaters and MCC 1G if connected to the bus<<
Consideration should be given to this by placing the service water pumps and the motor control center on the opposite bus The intake heaters wi.ll have to be placed in service at the bus.'abinet.
Zf three service water pumps are in service, the loss of at least one should be anticipated, however; it can be started almost immediately after the trip of normal feed.
5.4 When voltage and frequency are normal, trip the noxmal feed to the appropriate screen house bus~.,
That is, if the A diesel is being run, trip the normal feed to Bus 18, and..if the B diesel is being run, trip the normal feed to Bus 17.
5.5 The diesel should automatically close to the bus 5'
As soon as practical, place a minimum of 500,.KW load on'the emergency bus..
This can be accomplished'by running two service water pumps and two intake heaters on the bus~.
5.7 Periodically monitor generator voltage and frequency.
Since the generator is running in unit operation, no attempt should be made to control power factor as it is being controlled by the load and not the generator.
In addition, 'an operator will be assigned the duty of monitoring the diesel operation.
His function is to moni-tor the diesel for proper operation, take hourly readings and to reset alarms and/or trips when required.
NOTE: If during this operation a safety injection signal occurred, the diesel that is running would automatically'he connected to its other safeguard bus For instance if the normal feed to bus 14 will trip and the diesel breaker will close to this bus The normal safeguard sequence will occur except that the bus will be fed from diesel rather than outside power.. If outside power is available, busses 16 and 17 wi.ll be fed from this source.
If the B diesel is feeding bus 17, bus 16 will lose its nor-mal feed and be connected to the diesel if a safety injection signal occuxs.
5.8 When the inoperative diesel i.s restored to standby service, the one that has been running can be stopped and also placed in standby ser-vice, by doing the following:
5.8.1 Reduce the loading on the diesel by tripping the intake heaters and and one or both service water pumps.
5.8s 2 Trip the diesel breaker and restore the normal feed to the bus and restore the service water pumps and intake heaters.
5.8.3 Check synchroscope and operate governor switch to return frequency
'to 60 cycles per second.
5.8.4 Adjust the automatic voltage contxol rheostat so that the generator output is 480 volts.
Return synchroscope to off position.
Stop the diesel generator set by turning generator switch to the stop position and immediately push the voltage shutdown button.
Wait a minute and push the field xeset and emergency generator start relay reset buttons, Verify the four indicating lamps are lighted.
Completed. By:
Date Completed:
Shift Foreman:
PORC Review Date:
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. DATE, DIESEL H-15:4 pVQPA16TBQ Lar-r Fvc'L ig'i76ssepE drill 2/g'peg PCF5So45.
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ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY sSBER GIN NA STATION UNIT g1 COMPI ETED DATE: ~
TIME:-
PROCEDURE NO.
M-15.1 REV. NO.
A OR B DIESEL GENERATOR REMOVAL FROM SERVICE TECHNICAL REVIEW PORC:
5/10/76 Q/C REVIEW MAY 13 l976 DATE APPROVED FOR USE PIANT SUPERgi&2iDENT 4
DATg LIFETIME NONPERMANENT TEES PRCCECURE CCRT\\TES 4
PAGES RECEIVED CENTRAL RECORDS:
DISPOSITION DATE DATE'
~,
A OR B DIESEL GENERATOR REMOVAL FROM SERVICE
1.0 PURPOSE
To define the steps necessary for removal of a diesel generator for maintenance and returning it to service.
2.0 REFERENCES
2.1 2.2 Alco Instruction Manual TP1-891 Plant Technical Specifications 3.0
3.1 INITIALCONDITIONS
Diesel-Generator not to be removed fxom service is operable.
3.2 Maintenance necessary on a diesel generator unit.
3.3 Sufficient fuel oil is available to maintain the fuel oil tanks with greater than 10,000 gallons of fuel oil
4.0 PRECAUTIONS
4.1 No more than one emergency diesel may be out of service at one time when the reactor is critical.
When one diesel is out of service the other diesel shall be run continuously and the station txansformer shall be in service.
Such operation of the emergency diesel genexators shall not exceed 7 days (total for both diesels) during any month.
4.2 Both diesels must be operable prior to going cxitical.
(Technical Specification, Section 3.7) 4.3 5.0 5.1 No more than one diesel is to be held at any one time.
INSTRUCTIONS:
s NOTE:
Zf the plant is in cold or refueling shutdown Steps S.l, 5.2 and 5.8 may he masked N.A.
Calculate total hold time of both diesel generators in a one month interva1.
Total hold time 5.2 The emergency diesel not to be held for maintenance is in operation using procedure M-'15 Diesel Generator Maintenance.
Diesel Time Started
M-15.1:2 5.3 The emergency diesel to have maintenance performed on it is held observing station holding procedure A-36 Holdin Procedure
- Intra Station.
- Diesel, Held 5e4 Perform desired maintenance on the held diesel in accordance with the reference 2.1.
Use M-15..1 attachment if annual inspection is to be performed.
5.5 After the desired maintenance work has been completed remove all holds.
Holds removed 5.6 Prepare the diesel held for maintenance for return to service using checkoff T-27.1 or T-27.2 Comp le te Checkoff 5.7 Verify proper diesel geuereror opereriou by use of Pf-12.1 or Ff-12.2 (IA or 1B Emergency Diesel Generator)
PT-12.1 or PT-12.2 successfully comple ted 5.8 Remove diesel not held for maintenance from operation.
Diesel Time Stopped 5.'9
'Note all maintenance performed on this procedure or attach a complete inspection report to this procedure.
Indicate all materials used.
Completed by; Date Completed:
Mechanic Poreman:
Shift Poreman:
PORC Review Date
M-15.1:3 5.4.1 5.4'.1 5.4.1.2 5.4,2 M-15. 1 ATTACHMENT DIESEL ANNUAL MAINTENANCE OPERATIONAL CHECK NOTE:
Record Hour Meter Reading Coolin Water S stem:
Take coolant sample and check for chromate content.
(Chemist) ppm pH Check water pump drive.
Fuel Oil S stem:
5.4.2.1 Renew secondary filter elements.
5.4.2.2 Renew primary filter elements and clean strainer.
l 5.4.2.3 Check fuel pump drive.
5.4.2.4 5.4.2.5 5.4.3 Drain condensate from fuel day tanks.
Take fuel oil sample Lubricatin Oil S stem:
5.4.3.1 Renew filters and clean strainers.
5.4.3.2 Take 2 oil samples (one for RG&E and one for vendor).
Analyze for water, neutralization
- number, and water content.
(Chemist) 5.4.3.3 Check for oil leaks and repair.
(Fitter) 5.4.3.4 Clean water side of oil cooler.
(Fitter) 5.4.3.5 5.4.4 Clean'ater side of packet water cooler.
Com ressed Air S stem':
5.4.4.1 Lubricate air start motor.
5.4.4.2 Inspect compressor and service as per manufacturing ins tructions.
5.4.5
~En ina:
5.4.5. 1 Remove all fuel injection pump covers and thoroughly lubricate fuel pump throttle linkage.
5.4.5.2 Drain governor and refill with new engine oil.
5.4.5.3 Inspect turbocharger and intake air silencer for cleanliness.
5.4.5.4 Take crankshaft deflection reading
& record.
5.4. 6 Protective 'Devices:
5.4.6.1 Test and record the following devices:
(1)
Low oil pressure alarm expected (2)
Hot engine alarm expected actual actual
~
~
a I
5.4.7 Generator
5.4.7.1 Relube OB bearing.
5.4.7.2 5.4.8 Inspect windings for cleanliness and tie condition without removing lagging.
(Electricians) t Runnin Ins ection:
Hhen performing PZ>>12.1 or PT-12:2:
5.4.8.1 Listen to air start motor and valve operation.
5.4.8.2 Note unusual noises, odor, or heat especially in fuel and water pumps, injector pumps, turbocharger, crankcase, and generator.
5.4.9 Remarks
Completed by:
Date Completed:
Mechanic Foreman:
CHESTER GAS AWA ELECTRIC CORPO TION GINNA STATION CONTROLLED COPY NUMBER QINNA STATION '
UNIT 4'f GQM PLETED OATE:-
TIME:-
PROCEDURE NO.
PT-12.1 REV.
NO.
)
7 EMERGENCY DIESEL GANERATOR 1A PORC Az~
]I-lO-7 DATE APPROVED FOR USE uJ PLANT'UPERLZENDKFZ po'J I j 1977 DATE QA~ NON-QA LIFETIME REVI~r.
BY CATEGORY NONPEEL~~VE THIS PEOCEDUEE CONTALNS~ PAGES REC.
CENTRAL RECORDS DATE DISP.
DAT"
PT-12. 1: 1 PT-12.1 EMERGENCY DIESEL GENERATOR 1A
1.0 PURPOSE
To'describe the steps necessary to perform monthly surveillance tests on Emergency Diesel Generator 1A..
2.0 TEST RE UIREMENTS:
2.1 To demonstrate that the IA emergency diesel generator is operable and capable of initially being electrically loaded to 1800 KW + 10 KW.
2.2 To ensure that the 1A emergency generation unit is properly aligned for emergency safeguard operations.
3.0 3.1
3.2 REFERENCES
ALCO Instruction Manual TP1-891 Plant Technical Specifications
4.0 INITIALCONDITIONS
4.1 The 1A diesel generator may be load tested while plant is in any status of operation.
NOTE:
When testing at power, the proper electrical plant inter-ties between the various voltage systems will permit feed-ing electrical energy back into the station 480 volts system to assume 480 volts plant load and through the Station Service
.Transformers to assume a portion,of the 4160 volt plant load.
When testing at no power conditions the same feed distribution will be available, however, if plant load is insufficient at this time, the excess energy will flow through the auxiliary transformer into the 34.5 KV system.
5.0 PRECAUTIONS
5.1 5.2 The 1A emergency diesel generator must be'ied into both of its respective safeguard busses before loading to 1800 KN + 10 EN.
I Upon connecting the 1A diesel-generator into the 480 volt bus approx-imately 300 KW load should be immediately loaded on the generator and the power factor should be increased quickly to prevent a reverse
,power trip.
PT-12.1:2 r'5.3 All abnormal pressure and temperature changes should be investi-gated and steps taken to bring readings to normal.
~
5.4 5.5 The power factor of generator should be maintained between
.85 and
.95 lagging.
Only one diesel should be load tested at a time.
5.6 An auxiliary operator should be stationed in the lA diesel room during the time the diesel generator set is being load tested.
Normally the operators function would be to monitor for proper operation of the diesel-generator,
- however, there always exists the remote possibility of a station blackout and safety injection actuation signal.
In this event the operator must be prepared to reset any trip condition which 'would prevent the diesel-gener-ator from supplying safeguard load.
5.7 Do not exceed the diesel generator long term rating of 1950 IGl.
6.0 INSTRUCTIONS
6.1 lA diesel egnerator pre-start alignment, T-27.1, has been completed within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> prior to operation'f diesel-generator set for full load surveillance check.
6.2 Verification of automatic fuel oil make-up to IA diesel day tank:
NOTE:
If this procedure is being used to perform post-maintenance reliability check, mark Steps 6.2.1 through 6.2;7 NA and. continue with Step 6.3.
6.2.1 Ensure that 1A diesel fuel oil transfer'ump switch is in position "Tank A Auto."
6.2.2 6.2.3 6.2. 4 Unlock and open, manual drain valve 5977C.
Unlock and open, manual drain valve 5977D.
Permit 1A diesel day tank to drain down until 1A diesel room alarm horn sounds or draining stops.
NOTE:
If the fuel oil storage tanks have recently been topped off, it may be impossible to drain the day tank down to the alarm point. If this occurs, mark steps 6.2.6, 6.2.7 and 6.12 N/A.
6.2.5 6.2.6 Lock closed manual drain valves 5977C and 5977D.
If alarm point was reached in Step 6.2.4, verify the following:
Day tank sight glass level approximately one inch from bottom of glass.
Fuel oil level alarm light is illuminated on 1A diesel room control panel.
Main control board alarm "emergency diesel lA panel" has annunciated.
PT-12.1:3 6.2.7 After alarm verification, local horn may be silenced.
6.3 Notify load dispatcher of diesel start and subsequent load-ing of generator.
6.4 Verify air start indicating lamps are illuminated for 1A diesel-generator.
set..
6.5 Verify start relay indicating lamps are illuminated for 1A diesel generator set.
6.6 Place the "man-'auto" field control switch in manual position.
6.7 Place the unit-paralle1 switch in parallel position.
6.8 Place 1A generator ammeter switch in 1, 2, or 3 position
. (normally in 82 position).
6.9 Place lA generator voltmeter switch in A-B, B-C, or C-A position (normally in B-C position).
6.10 Start diesel-generator set by turning 1A emergency generator start switch to start position.
NOTE:
Voltage build-up to approx.
480 volts within 10 seconds.
- 6. 11 After-'A diesel has been started, for surveillance check,. verify that 1A fuel oil transfer pump is running.
6.12 As soon as the level in the day tank increases above the low alarm point (approximately 3 inches in sight glass) reset the lA diesel control panel oil level alarm.
6.13 Place synchroscope switch handle in proper synchroscope switch and turn switch to either bus position.
6.14 Adjust emergency generator manual voltage control ad)ustment, if
'necessary;
<<to raise <<the-generator voltage-approximately 5 volts higher than the running voltmeter.
6.15 Intermittently operate emergency generator governor switch in proper direction so that synchroscope is turning slowly in the fast or clockwise direction.
6.16 With synchroscope turning slowly in clockwise direction and when pointer is within 2 or 3 degrees of the 12 o'lock position, close the generator tie breaker into the selected bus and immediately load the generator to at least 300 to 500 KN (Loading is done by intermittently turning the emergency generator switch to the raise position).
Proceed to Step 6.17 without delay.
6.17 Maintain power factor at approximately
.9 lag by proper adjustment of manual volta'ge control.
(CCW to increase, power factor).
~'.18 hf Turn synchro e switch to other bus service the 1A diesel generator set and close generator bus tie breaker.
- 6. 19 Load the generator up to 1800 IN + 10 KW by operation of the governor switch.
(Increase load at rate of'approximately 500 KN every 30 seconds.)
NOTE:
If load drift to 1900 EH is observed during operation, adjust governor switch to return to initial loading of 1800 KW + 10 KW.
6.20 Maintain power factor at approximately
.9 lag during load changes (as load increases the P.F. will increase toward unity.)
To compensate, adjust manual voltage control in the C.W. direction.
- 6. 21 When D/G loading is satisfied, permit D/G to run for 30 minutes.
After 30 minute run secure. data as per attached data sheet.
6.21.1 Increase load to 1950 KW for approximately one minute.
CAUTION:
Do not exceed Tech.
Spec. limit of 1950 KW.
- 6. 22 Unload generator by intermittently turning governor switch in the lower direction and maintain P.F. at approximately
.9 lag by turning manual voltage control in CCW direction.
(Unloading rate should be about 500 KW every 30 seconds).
6.23 When load.has been reduced to 400 1GT, trip one generator tie breaker from the system.
6.24 Continue reducing load,. maintain.P.F. until 200 KW load level is
- reached, and at this point trip the remaining generator bus tie breaker.
6.25
- 6. 26 Place unit-parallel switch to unit position.
Place generator 'Mn-Auto" (field control switch) to auto position.
6.27
.Check synchroscope and if frequency is high, operate governor switch to return to approx 60 cycles (revolving slowly CW direction).
6.28 Adjust emergency generator'automatic volta e control adjustment so that generator output voltage is 480 volts.
6.29 6.30 Return synchroscope switch to the off position.
Stop the 1A diesel-generator set by turning generator switch to the stop position, immediately after stopping diesel push the voltage shutdown button.
(Red. button-hold in for a few seconds) 6.31 Permit one minute for generator to slow down before pushing the start relay and air start reset buttons
/any sequence).
Verify the four indicating"lamps are lit.after reset.
6.32 After lA diesel has been shut down,verify the following:
lA Diesel Oil Transfer Pump is not running.
1A Diesel Day Tank level sight glass is full.
PT-12.1:5 1A DIESEL GENERATOR DATA S Ki3.owatt load Power Factor Phase Current (Rotate Ammeter Switch to each position)
Phase Voltage (Rotate Voltmeter Switch to each position)
Phase 1
Phase 2
Phase 3
Phase A-B Phase B-C Phase C-A volts volts volts Pyrometer Readings:
Left; F
~Ri ht p
E&aust F
p LR F
p F
p p
op F
F op F
F op APPROX.
VALUES Fuel Oil Pressure Lube Oil Pressure Air Ymnifold Pressure Jacket Water Pressure 78 20 33 Dsig
'osig sig Dsig Sig COMPLY) BY:
DATE COMPL~
SHIRE FOREVil'.
TEST ENGINEER R~ZW:
STER GAS AND ELECTRIC CORPORA ON GINNA STATION CONTROLLED COPY NUMBER 6!NNA STATION, UNIT qp$
CQ MPLETED
'ATE'-
TINE:-
PROCEDURE NO.
PT-12.2 REV. NO.
EMERGENCY DIESEL GENERATOR 1B TECHNICAL REVIEW PORC Q/C REVIEW DATE APPROVED FOR USE E
PLANT'UPERIAViiD~
ffp'll $
f ]CI77 DATE QA~ NON-QA LIFETZK REVIEWS) BY CATEGORY NONPK4~KÃZ DATE TRIS PROCEDURE CONTAINS S
PAGES REC.
CENTRAL RECORDS DATE DISP.
DATE
'o ~,g PT-12.2 EMERGENCY DIESEL GENERATOR 1B
1.0 PURPOSE
To describe the steps necessary to perform monthly surveillance tests on Emergency Diesel Generator 1B.'.0 2.1 TEST RE UIREMENTS:
To demonstrate that the 1B emergency diesel generator is operable and capable of initiallybeing electrically loaded to 1800 KV + 10 KW.
2.'2 To ensure that the 1B emergency generation unit is properly aligned for emergency safeguard operations.
3.0 REFERENCES
3 ~
3.2 ALCO Instruction Manual TP1-8gl Plant Technical Specifications
4.0 INITIALCONDITIONS
The 1B diesel generator'ay be load tested while plant is in any status of operation.
NOTE:
When testing at power, the proper electrical plant inter-ties between the various voltage systems will permit feeding electrical energy back into the station 480 volts system to assume 480 volts plant load and. through the Station Service Transformers to assume a portion of the 4160 volt.plant load.
When testing at no power conditions the same feed distribution will be availaole, however, if plant load is insufficient at this time, the excess energy will flow through the auxiliary transformer into the 34.5 WT system.
5.0 PRECAUTIONS
5.3.
The 1B emergency diesel generator must be tied into both of its respective safeguard ousses before loading to 1800 KVi + 10 cM.
5.2 Upon connecting the 1B diesel-generator into the 480 volt bus approximately 300 IG7 load should be immediately loaded on the generator end the power factor should be increased quickly to prevent a reverse power trip.
5 3
All abnormal pressure and temperature changes should be.investigated and steps taken to bring readings to normal.
PT-12. 2:2
'5. 4 The power factor of generator should be maintained between
.85 and
.95 lagging.
5.5 Only one diesel should be load tested at a time.
5.6 An auxiliary operator should be stationed in the 1B diesel room during the time the diesel generator set is being load'ested.
Normally the operators function would be to monitor for proper operation of the diesel-generator,
- however, there always exists the remote possibility of a station blackout and safety injection actuation signal..
In this event the operator must be prepared to reset any trip condition which would prevent the diesel generator from supplying safeguard load.
5.7 Do not exceed the diesel generator long term rating of 1950 EN.
6.0 INSTRUCTIONS
6.1 1B diesel generator pre-start alignment, T-27.2, has been completed within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> prior to operation of diesel generator set for full load surveillance check.
6.2
. Verification of automatic fuel oil make-up to 1B diesel day tank:
6.2. 1
~
NOTE:
If this procedure is being used to perform post-maintenance reliability check, mark steps 6.2.1 through 6.2.7 N/A and continue with Step 6.3.
Ensure that 1B diesel fuel oil transfer pump switch is in position "Tank B Auto."
6.2.2 6.2.3 6.2.4 Unlock and open, manual drain valve 5978C.
Unlock and open, manual drain valve 5978D.
Permit lB diesel day tank to drain down until. 1B diesel room alarm horn sounds or'rain'ing stops.
NOTE:
If the fuel oil storage tanks have recently been topped off, it may be impossible to drain the day tank down to the alarm point. If this occurs, mark steps 6.2.6, 6.2.7, and 6.12 N/A.
6.2;5 6.2.6 Lock closed manual; drain valves 5978C and 5978D.
If alarm point was reached in Step 6.2.4,. verify..the following:
Day tank sight glass level approximately one inch from bottom of glass.
Fuel oil level alarm light is illuminated on 1B diesel room control panel.
i~fain control board alarm "emergency diesel 1B panel" has annunciated.
-6:2. 7 0
0 After alarm verification, local horn may be silenced.
PT-12. 2: 3 6.3 Notify load dispatcher of diesel start and, subsequent loading of generator.
6.4 Verify air start indicating lamps are illuminated for 1B diesel-generator set.
6.5 6.6 Verify start relay indicating lamps are illuminated for 1B diesel-generator set.
Place the "man-auto" field. control switch in-manual position.
6.7 Place the unit-parallel switch in parallel position.
6.8 Place 1B generator ammeter siwtch in 1, 2, or 3 position (normally in 82 position).
6.9 Place 1B generator voltmeter switch in A-B, B-C, or C-A position.
(norme11y in B-C position).
- 6. 10 Start diesel-generator set by turning 1B emergency generator start switch to start position.
NOTE:
Voltage build-up to approx.
480 volts within 10 seconds.
6.11 After 1B diesel has been started, for surveillance check, verify that 1B fuel oil transfer pump is running.
6.12 As soon as the level in the day tank increases above the low alarm point (approximately 3 inches in sight glass) reset the 1B diesel control panel oi'1 level alarm.
6.13 Place synchroscope switch handle in proper synchoscope switch and turn switch to either ous position.
6.14 Adjust emergency generator manual vol age control a@ustment, if necessary, to raise the generator voltage approximately 5 volts higher than the running voltmeter.
6.15 Intermittently operate emergency generator governor switch in proper direction so that synchroscope is turning slowly in the fast or clockwise direction.
6.16 Vith synchroscope turning slowly in clockwise direction and when pointer is within 2 or 3 degrees of'he 12 o'lock position, close the generator tie breaker into the selected.
bus and immediately load the generator to at least 300 to 500 KW (loading is done by i'ntermittently turning the emergency generator switch to the raise position.)
Proceed to Step 6.17 without delay.
6.17 Maintain power factor at approximately
.9 lag by proper a@ustment of manual vol age control.
(CCM to increase power factor).
6.18 Turn synchroscope switch to other bus serviced by the lB diesel generator set and. close generator bus tie breaker.
Load the gener r up to 1800 KH + 10 KN by ope ion of the governor switch.
(Xncrease load at rate of approximately 500 KW every 30 seconds.)
NOTE:
Xf load drift to 1900 IGl is observed during operation, adjust governor switch to return to initial loading of 1800 KW + 10 KW.
Maintain power factor at approximately
.9 lag during load changes (as load increases the P.F. will increase toward unity.)
To compensate, adjust manual voltage control in the C.W. direction.
When D/G loading is satisfied, permit D/G to run for 30 minutes.
After 30 minute run secure data as per attached data sheet.
Increase load to 1950 KW for approximately one minute.
CAUTION:
Do not exceed Tech.
Spec. limit of 1950 KW.
Unload generator by intermittently turning governor switch in the lower direction and maintain P.F,. at approximately
.9 lag by turning manual voltage control in CCW direction.
(Unloading rate should be about 500 KN every 30 seconds).
When load has been reduced to 400 KW, trip one generator tie breaker from the system.
Continue reducing load, maintain P.F. until 200 KW load level is
- reached, and at this point trip the remaining generator bus tie breaker.'
=
Place unit parallel switch to unit position.
Place generator "Man-Auto" (field control switch) to auto position.
Check synchroscope and if frequency is high, operate governor switch to return to approx.
60 cycles (revolving slowly CW dir,ection},.
Adjust emergency generator'automatic volta e control adjustment so that generator'output voltage is 480 volts.
Return synchroscope switch to the off position.
Stop the 1B diesel-generator set by turning generator switch to
.the stop position, immediately after stopping diesel push the voltage shutdown button.
(Red button-hold in for a few seconds)
Permit one minute for generator to slow down before pushing the start relay and air start reset buttons (any sequence).
Verify the four indicating lamps are lit after reset.
After 1B diesel has been shut down, verify the following:
1B Diesel Oil Transfer Pump is not running.
1B Diesel Day Tank level sight glass is full.
PT-12.2:5 1B DIESEL GE1GZATOR DATA SHEET Kilowatt load Power Factor Phase Current (Rotate Ammeter Switch to each position)
Phase Voltage (Rotate Voltmeter Switch to each position)
Phase 1
Phase 2
Phase 3
Phase A-B Phase B-C Phase C-A amp 81'mp volts volts volts Pyrometer Readings:
F F,
oF
~Rf ht F
F F
LR LL Exhaust F
oF F
oF F
oF F
F F
Fuel Oil Pressure Lube Oil Pressure Air Manifold, Pressure Jacket Mater Pressure 20 33 Dsig
'Dsig APPROX.
VALUES 42 Dsig Dsig sig CGMPLTED BY:
DA E COMPLETED:
SHIFT FORBID:
TEST'NGINEER REVIVE:
DATE:
~ ~
~+
RCC.rKSTZR GAS <H ~~TRTC CONG'ORATTOH G~ STATIOH COHTROIZZD COPV HUiiBZR Gl N NA STATI0 N UNl7 g3 CO MPLETE D DATE:-
TlME:~
PROC~
HO.
RSSP-2.3 REV. HO.
EMERGENCY DIESEL GENERATOR ANNUAL TRIP TESTING 6/13/77 7 77 APFROVED FOR USZ I,Z&Z~A HPif KZK4HZNT QA 0
SCHWA CAT GCRT TSTS KRCCZ3GRZ CGViL4W~S~PAGRS RZC.
CHfTcQZ. RZCORDS DATZ DISP.
DATE:
RSSP-'2.3:1 REFUELING SHUTDOWN SURVEILLANCE PROCEDURE RSSP-2.3 EMERGENCY DIESEL GENERATOR ANNUAL TRIP TESTING
1.0 PURPOSE
To provide the steps necessary for performing an annual test of the diesel generator protection systems.
2.0 TEST RE UIREMENTS:
2.1 To verify alarm and trip protection for the Emergency Diesel Generator upon low lube oil pressure condition, (alarm function is 1/3, trip function is 2/3).
2.2 To verify adequate trip protection for the Emergency Diesel Generator against overspeed conditions, (overspeed trip to occur between 1000 RPM and 1050 RPM).
2.3 To ensure that emergency Diesel Generator Shutdown occurs during attempted starting, if diesel engine fails to start within 20 sec.
(This ensures that sufficient air remains in air receiver for attempted second start).
3.0 3.1
3.2 REFERENCES
Alco Instruction Manual 8TPI-891 Alco Control Wiring Diagram 85907S310620 4.0 INITIAL.CONDITIONS:
4.1 Plant may be at any status of operation.
Xn the event that the Reactor is critical however, the redundant Diesel Generator must be run continuously during the period that one diesel generator is inoperative.
4.2 4.2.1 4.2.2
- 4. 2.3 4.2.4 Special equipment required:
Neon Test light Strobe Tachometer Checked for Calibration by I & C Contact Tachometer Pressure Test Gauge Checked for calibration by I & C Date Date 4.3 Personnel to perform test will be chosen in accordance with Procedure QC-1104.
4.4 Emergency Diesel Generator Pre-Start alignment procedure (T-27.1 or T-27.2) has been performed within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> prior to beginning RSSP-2.3 on either Diesel Generator.
4.5 If plant is at ot shutdown condition or at po r, procedures M-15 and M-15.1 must be performed.
5.0 PRECAUTIONS
5.1 The accumulated running time for both Emergency Diesel Generators (resulting from inoperability of one) is not to be in excess of 7
days for any one month).
5.'2 Any wires which were lifted, or jumpers installed to facilitate
- testing, must be double checked to ensure proper reconnection.
Insure all states block slide links are securely tightened.
5.3 Possible coke and carbon deposits, in cylinder and exhaust manifold accumulated during testing are to be burned off by starting Emergency Diesel Generator and assuming full load in accordance with PT-12 procedure.
5.4 Diesel Genera'tor speed o'f 1055 RPM is not to be exceeded.
6.0 INSTRUCTIONS
(underline here, diesel undergoing test, A or B) 6.1 Place the output breaker selector switches, for the Emergency Diesel Generator undergoing test to the Pull Stop position /on Mi in Control Board (MCB)Q 6.1.1 6.1.2 Emergency Generator Feed to bus Emergency Generator Feed to bus Switch in Pull Stop Switch in Pull Stop 6.2 Place the Emergency Generator "Unit Parallel" switch to the "Unit" Position (at MCB).
6.3 Place the Emergency Generator Voltage Control "Auto-Mi nual" switch to the "AUTO" position (At MCB).
6.4 Place the Emergency Diesel Generator "Local Remote" switch to. the "REMOTE" position, (at control panel in diesel'oom).
6.5 6.6 Close shutoff valve in common lube oil pressure sensing line to pressure switches LOP-1, LOP-2, and LOP-3.
4 In preparation for testing alarm function of LOP-1, and trip function of LOP-1, and LOP-2, perform the following:
6.6.1 6.6.2 6.6.3 6.6.4 6.6.5 Install test gage (0-100 psig) at test connection.
Open shutoff valve in pressure switch sensing line.
Open STATES,block slide link for alarm wire (863) of,LOP-2.
Open STATES block slide link for alarm wire. (//64) of LOP-3.
Open STATES block slide links for Tripwires (811
& 812) of LOP-3.
RSSP-2.3:3
..6. 6. 6:
Place Neon Light across wires 815 (-) 6 864 (+) to monitor OPT-3 relay.
6.7 Start the diesel at MCB using, "Emergency Diesel Generator Start Switch" 6.8 After diesel attains operating
- speed, and for duration of subsequent test"ng, surveillance of diesel, while running, will be maintained by operations.
6.9 Close shutoff valve in pressure switch sensing line.
- 6. 10 Check the alarm function of LOP-1 (60 psig + 2 psig) by slowly bleeding down pressure in sensing line (use drain valve) and record the following:
NOTE:
Neon Light across OPT-3 relay will indicate when switch actuation has occurred.
6.10.1 6.10.2 6.10.3 6.10.4 Alarm annunciation occurs at:
(approx.
20 second time delay)
Local alarm horn sounds (silence horn after verification)
Local Oil Pressure light is illuminated.
Emergency diesel panel alarm annunciates at MCB psig 6.11 Check the trip function of LOP-1 and LOP-2, (should be 40 psig + 2 psig) by continuing to bleed down sensing line pressure until diesel engine trips.
Record pressure.
6.12 After diesel engine trip occurs perform. the following:
6.12.1 Close drain valve and open shutoff valve in pressure switch sensing line.
- 6. 12. 2 6.12.3 6.12.4 6.12.5 6.12.6 Close STATES block slide link for alarm wire (J'63) of LOP-2.
Close STATES block slide link for tripwire (811) of LOP-3.
Open STATES block slide link for alarm wire (f/63) of LOP-l.
Open STATES block slide link for trip wire (813) of LOP-l.
Press local alarm reset pushbutton, and verify alarm condition clears.
- 6. 13 Place "Local-Remote" switch to "Local" position and start the diesel by momentarily pressing the start pushbutton at local control panel.
6.14 Close shutoff valve in pressure switch sensing line.
- 6. 15 Check alarm function of LOP-2 (60 psig + 2 psig) by slowly bleeding down pressure in sensing line (use drain valve) and record the following:
NOTE:
Neon ght across OPT-3 relay willi
~cate when switch actuation has occurred.
-6.15.1 6.15.2 6.15.3 6.15.4
- 6. 16 Alarm annunciation occurs at:
(approx.
20 seconds time delay)
Local alarm horn sounds (silence horn after verification)
I Local Oil Pressure light is illuminated.
Emergency diesel panel alarm annunciates at MCB.
1 Check the trip function of.LOP-2 and LOP-3 (should be 40 psig + 2 psig) by continuing to bleed down sensing line pressure until diesel engine trips.
Record Pressure.
6.17 After diesel engine trip occurs, perform the following:
6.17.1 Close drain valve and open shutoff valve in pressure switch sensing line.
6.17.2
'.17.3 6.17.4 6.17.5 6.17.6 Close STATES block slide link for alarm wire (864) of LOP-3.
Close STATES block slide link for tripwire (f/12) of LOP-3.
Open STATES block slide link for alarm wire (864) of LOP-2.
Open STATES block slide link for trip wire (f/11) of LOP-2.
Press local alarm reset pushbutton and verify alarm condition clears.
6.18 Start the diesel by momentarily pressing the Start pushbutton at local control panel.
6.19 Close shutoff valve in pressure switch sensing line.
6.20 Check alarm function of L'OP-3 (60 psig + 2 psig) by slowly bleeding down pressure in sensing line (use drain'alve) and record the following:
NOTE:
Neon Light across OPT-3 relay will indicate when actuation has occurred.
6.20.1 6.20.2 6.20.3 6.20.4 Alarm annunciation occurs at:
(approx.
20 second time delay)
Local alarm horn sounds (silence horn after verification)
Local Oil Pressure is illuminated Emergency diesel panel alarm annunciates at MCB 6.21 6.22 Check the trip function of LOP-1 and LOP-3 (should be 40 psig + 2 psig) by continuing to bleed down sensing line pressure until diesel engine trips.
Record pressure.
After diesel engine trip occurs, perform the following:
psi
- 6. 22,1 6.22.2 6.22.3 6.22.4 6.22.5 6.22.6 6.22.7 Close drain val and remove test gage from pre re sensing line, and cap test gage connection.
Open shutoff valve in pressure switch sensing line.
Close STATES block slide link for alarm wire (//63) of LOP-1.
Close STATES block slide link for trip wire (813) of LOP-l.
Close STATES block slide link for alarm wire (864) of LOP-2.
Close STATES block slide link for trip wire (811) of LOP-2.
Press local alarm reset pushbutton and verify alarm condition clears.
6.23 Verification of Emer enc Diesel Generator Overs eed Tri.
(Do not exceed 1055 engine speed).
6.24 Remove cover on generator end shield to expose bearing end cap.
Remove name plate on bearing end cap to gain access to the generator main shaft for contact tachometer use.
- 6. 25 Assume local start capability of the diesel generator by placing the "Local-Remote" switch to the "Local" position.
6.25.1 Start the diesel by momentarily pressing the start push button.
(At diesel room control panel).
6.26 After diesel engine attains operating
- speed, turn'synchro-switch (MCB) to either Safeguard bus for the diesel being tested.
6.27
, Ef necessary, operate "Raise-Lower" switch (at diesel room panel) until synchroscope indicator comes to rest or drifts very slowly in either direction.
The speed of the diesel engine will be very close to 900 RPM.
Take speed reading with tachometers and record.
6.27.1 Contact tachometer reading.
6.27.2 Strobe tachometer reading.
- 6. 28 Slowly force down the fuel rack arm until overspeed trip occurs 1000 RPM to 1050 RPM.
(Do not exceed 1055 RPM).
F CAUTION:
When overspeed trip occurs do not attempt to restrain fuel rack arm from moving to its closed "upward" position.
6.28.1 6.28.2 Contact tachometer reading at trip.
Strobe light tachometer reading at trip, (if speed increase can be followed), otherw'is'e mark N/A.
RPM 6.28.3 6.28.4 Verify that local alarm sounds.
(Silence Horn after verification).
Verify that local alarm panel over speed light'is illuminated.
RSSP-2.3:6 After diesel engine coasts to stop, perform the following:
Reset mechanical trip, by pulling forward reset lever.
(Front end by camshaft).
If necessary, speed determination may be repeated.
To verify correct setting of mechanical
- governor, operate the local governor in raise direction to increase diesel engine speed until mechanical governor assumes speed control (should be approximately 40 rpm less than overspeed trip).
NOTE:
If speed of diesel is not assumed by mechanical governor at a speed of approximately 980 rpm adjustment of the mechanical speed control will be required.
If speed adjustment is required, operate local governor electrical switch to reduce speed to approximately 900 RPM + 5RPM.
Make adjustment of mechanical speed set and repeat step 6.31.
Operate the local governor switch in proper direction until diesel engine speed is approximately 900 + 5 RPM.
Shut diesel engine down by pressing in. local stop push button.
Reset all alarm conditions by pressing in local alarm reset push button.
Verification of, overcrank timers NOTE:
To effectively check both overcrank timers, the overcrank check will have to be done twice, alternately defeating each of the two diesel start circuits.
'efeat diesel start by performing the following:
Close air supply valve for air start motor and valves (85973) for "A" Diesel and 85974 for "B" Diesel).
Bleed off entrapped air between air supply valve and air start solenoid valves.
Defeat OCT-1 and ASV-1 'relays by lifting positive wire 86 at contact of relay Rl in diesel start circuit.
Energize GERS relay coil by placing 5umper wire from wire 89 on contact of Rl. rel'ay to wire
/$17 on contact of relay R3 in GERS relay coil'ick up circuit (this will maintain diesel engine fuel rack closed and prevent engine start).
Place Neon. Light across contacts of OCR relay and verify light is on (wire //46 and
/$50).
Press in local start push button and coincidentally start stop watch.
Monitor Neon Light and immediately upon loss of indication stop stop watch and record elapsed time (should be 20 sec.
+ 1 sec.)
sec.
RSSP-2.3:7 6.-37.1 Verify that local alarm horn sounds.
(Silence horn after verification).
6.37.2 Verify that local alarm panel overcrank light is illuminated.
6.38 Reset any alarm conditions by pressing local alarm reset pushbutton.
NOTE:
(Low air-alarm may remain).
6.39 Reconnect lifted wire (/l6 to contact of Rl relay for OCT-1 and ASV-1 relays) of diesel air start solenoid circuit.
6.40 Defeat OCT-2 and ASV-2 relays by lifting positive wire 842 on contact of R2 relay in diesel start circuit.
NOTE:
Jumper wire of step 6.36.4 must be in place.
- 6. 41 Place Neon. Light across contacts of OCR relay and verify light is on (wire 846 and wire ~350).
Press in local start push
- button, and coincidentally start stop watch.
Monitor Neon Light and immediately upon loss of indication, stop stop watch and record elapsed time (should be 20 sec.
+ 1 sec.).
sec.
6.41.1 Verify that local alarm horn sounds (silence horn after verification).
6.41.2 6.41.3 Verify that local alarm panel overcrank light is illuminated.
Reconnect lifted wire (842 to contact of R2 relay for OCT-1 and ASV-2 relays) of diesel air start solenoid circuit.
6.42 Reset any alarm condition by pressing in local alarm reset pushbutton.
6.43 NOTE:
Low air.alarm will remain until air receiver is restored.
Return "Local-Remote" switch to the "Remote" position.
6.43.1 Remove jumper wire in GERS relay circuit and remove Neon light.
6.43.2 6.43.3 Replace tubing cap on air supply line fop air start valves.
Lock open air supply valve which was closed in step 6.36.1.
6.44 Ensure procedure M-15.1 has been completed.
RSSP-2.3:8 COMPLETED BY:
DATE COMPLETED:
SHIFT FOREMAN:
TEST ENGINEER REVIEW:
DATE DEFICIENCIES NOTED:
CORRECTIVE ACTION:
RG&E GINNA STATION 1 DIESEL GENERATOR LUBE OIL PRESSURE SWITCH CALIBRATION SHEET SEL POINT FUNCTION NZEE NO'S POUND LEFT LOP1 60psi 40psi 40psi LOP2 60ps i 40psi 40psi LOP3 60psi 40psi 40psi alarm trip trip alarm trip trip alarm trip trip 63-64 9-12 9-13
. 63-64 9-11 13-14 63-64 11-14 12-14
~s i psi
~s i psi
~si
~si
~si psi psi
~si
~si
~si psi
~SI.
psi psi
~81.
~si Tolerances
& Logic:
Alarms-60psi + 2psi; 1 of 3 with 20 sec time delay Trip
-40psi + lpsi; 2 of 3 immediate Precautions:
Measure resistance between wire No's on field side of "States Block" (in diesel generator control cabinet)
ONLY with blocks open.
TEST UIPMBFZ:
SERIAL NO'S REASON FOR CAL.
Comments:
Performed By:
Reviewed By:
Date Date
RG& E GINNA STATION DIESEL GENERATOR LUBE OIL TIME DELAY CALIBRATION SHEET
~8e1 a Set'oint Remove
& Ta e Wire No's (A.- B)*
(C - D)<
Found Left OCT>>l OCT -2 OPT -1 OPT -2 PDT-20 Sec + 1 20 Sec + 1 25 Sec 25 Sec 35 Sec 8,
22,
& 50 44, 22, &50 10, 51,
& 114 10, 86,
& 111 85,
& 86 (1-8)
(37 - 44)
(22 - 21) sac.
sec.
(1 - 10)
(51 - 86) sec.
sec.
(1 - 10)
(86 - 51) sec.
sec.
(1 - 85)
(86 - 46) sec.
sec.
(A-B) *
(C - D)+
CAUTION:
Jumper wire No. A-from TR Relay to Time Dela Coil Terminal where wire No.
B is LIFTED.
Pick-up circuit-measure energize to contact swap.
Connect meter to check contact action, use terminal where wire NO.
C was and where D is at present.
Do Not let one lead touch ground or the meter may be damaged.
LOGIC POWER IS D.CD Test Equipment:
Serial Number:
Reason for Cal.
Comments:
Performed By:
Reviewed By:
Date:
Date:
1 EME CY DIESEL GENERATOR CALIBRATI i DATA SHEET Input PSI 0
Lube oil Diff Press Gauge-Found Left Fuel Oil Diff Press.
Gauge Found Left ube Oil Press Gauge Found
- Left, Air Manifold Press.
Gauge In ut Found Left 25 50 7+5 15.0 75 100 22 5 30.0 Input
! Fuel Oil Press PSI
~~'auge Jacket Water Press.
Gauge Lube Oil Tempexatuxe. Switches Set-Switch oint Found Left ru ose 0
15 30 60 LOTSl LOTS2 120 F 185 F S tandby'ube Oil Heater Control High Lube Oil Temperatuxe Alarm JacketI Water Press Swigches
~
~
Switch
~ Setpt Found Left Jacket Water Temperature Switch Contact Wires Switch
~etpt.
Found Left JWP-1 ll rsI 6&7 JWT 2 wite 1
175 F Zrlr 2 11 PSI mr-3 11 rsI Jwr-5 ll rsI Jwr-5 16 rsI TEST EQUIPMENT PERFORMED BY:
580SR 2280CT2 8(K81 115@116 S/N REVIEWED BY:
Switch 2
175 F DATE: