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4.8.1.1.2.d.7, and 4.8.1.1.2.d.8; and the two-hour rating in SR 4.8.1.1.2.d.7 (units 1 and 2). The wording of SR 4.8.1.1.2.d.8 is also changed to be consistent with industry standards. | 4.8.1.1.2.d.7, and 4.8.1.1.2.d.8; and the two-hour rating in SR 4.8.1.1.2.d.7 (units 1 and 2). The wording of SR 4.8.1.1.2.d.8 is also changed to be consistent with industry standards. | ||
Reason for Change 1 l | Reason for Change 1 l | ||
The continuous and two-hour ratings for the diesel generators currently in the technical specifications do not ensure that the diesel-generator sets will meet the manufacturer's ratings for the test method used. The manufacturer's ratings for the diesel-generator sets were supplied to NRC 3 in a letter dated February 27, 1987. A copy of this letter is included as i i | The continuous and two-hour ratings for the diesel generators currently in the technical specifications do not ensure that the diesel-generator sets will meet the manufacturer's ratings for the test method used. The manufacturer's ratings for the diesel-generator sets were supplied to NRC 3 in a {{letter dated|date=February 27, 1987|text=letter dated February 27, 1987}}. A copy of this letter is included as i i | ||
an attachment. The proposed revision to the surveillance requirements l will ensure that surveillance testing is representative of the j manufacturer's ratings, l | an attachment. The proposed revision to the surveillance requirements l will ensure that surveillance testing is representative of the j manufacturer's ratings, l | ||
1 The wording change to specification 4.8.1.1.2.d.8 is made to provide ' | 1 The wording change to specification 4.8.1.1.2.d.8 is made to provide ' |
Revision as of 16:05, 9 March 2021
ML20237J607 | |
Person / Time | |
---|---|
Site: | Sequoyah ![]() |
Issue date: | 08/11/1987 |
From: | TENNESSEE VALLEY AUTHORITY |
To: | |
Shared Package | |
ML20237J606 | List: |
References | |
TAC-R00197, TAC-R00198, TAC-R197, TAC-R198, NUDOCS 8708180252 | |
Download: ML20237J607 (9) | |
Text
-_ -. -
.o ENCLOSURE 1 i
PROPOSED TECHNICAL SPECIFICATION CHANCE SEQUOYAH NUCLEAR PLANT UNITS 1 AND 2 DOCKET NCS, 50-327 AND 50-328 (TVA-SQN-TS-87-32) 1 1
LIST OF AFFECTED PAGES ,
l Unit 1 {
3/4 8-3 3/4 8-4 3/4 8-5 Unit 2 3/4 8-3 3/4 8-5 1
l 1
i l
_ l l
1 l l
1 l
1 l
8708180252 870811 PDR ADOCK 05000327
< P PDR
4 1 1
ELECTRICAL POWER SYSTEMS l N !
i )
SURVEll'_ANCE REQUIREMENTS (Continued)
{
- 4. i Verifying the diesel starts from ambient condition and accelerates to at least 900 rpm in less than or equal to {
j 10 seconds. The generator voltage and +requency shall be 6900 {
690 volts and 60 1 1.2 Hz within 10* seconds after the lR$6 start signal. The diesel generator sht11 be started for this test by using one of the following signa's with startup on each signal verified at least once per 124 days:
a) Manual. )
j b) Simulated loss of offsite power by itself.
c) An ESF actuation test signal by itstlf. RS6
- 5. Verifying.the generator is synchronized, loaded to greater than 4409 - or equal fto kw in less than or equal to 60 seconds", and )
operates for greater than or equal to 60 minutes, and lRS6 l 6.
Verifying the diesel generator is aligned to provide standby power to the associated shutdown boaros.
- b. At least once per 31 days and after each operation of the diesel where the period of operation was greater than or equal to I hour by checking for and removing accumulated water from the engine-mounted fuel tanks.
c.
^ At least once per 92 days and from new fuel oil prior to additf>n
' to the 7-day tanks by verifying that a sample obtained in accordance with ASTM-D270-1975 has a water and sediment content of less than or equal to .05 volume percent and a kinematic viscosity 0 100 F of greater than or equal to 1.8 but less than or equal to 5.8 centi-stokes when tested in accordance with ASTM-0975-77, and an impurity level of less than 2 mg. of insolubles per 100 ml. when tested in accordance with ASTH-02274-70.
- d. i At least once per 18 months during shutdown by:
- 1. Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's recommendations for this class of standby service, 2.
~
Verifying the generator capability to reject a load of greater '
than or equal to 600 kw while maintaining voltage at 6900 1 690 volts and frequency.at 60 1 1.2 Hz. ,
- 3. 4'i00 Verifying the generator capability to reject a load of 4000- kw .
without tripping. The generator voltage shall not exceed -
i 7866 volts during and followin~ g the load rejection.
"The diesel generator start (10 sec) and load (60 sec) from standby conditions shall be performed at least once per 184 days in these surveillance tests. All RS6 other diesel generator engine starts and loading for the purpose of this sur-veillance testing may be preceded by an engine idle start, followed by gradual m ., acceleration to synchronous speed (900 rpm), synchronization, and gradual loading. -
)
' F.ebruary 3, 1987 SEQUOYAH - UNIT 1 3/4 8-3 Amendment No. 52 l
- _ - _ _ - _ _ - _ - _ _ - _ - _ _ _ _ _ - - _ _ -- l
ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 4.
Simulating a loss of offsite power by itself, and:
a)
Verifying de-energization of the shutdown boards and load shedding from the shutdown boards.
b)
Verifying the diesel starts on the auto-start signal, '
energizes the shutdown boards with permanently connected loads within 10 seconds, energizes _ the auto-corsnected shutdown loads through the ioad sequencers and operates for greater than or equal to 5 minutes while its. generator is loaded with the shutdown loads. After energization, the steady state voltage and frequency of the shutdown boards 60 i 1.2shall be maintained Hz during this test.at 6900 1 690 volts and 5.
Verifying that on a ESF actuation test signal (without loss of offsite power) the diesel generater starts on the auto start signal and operates on standby for greater than or equal to 5 minutes.
6900 1.690 The generator voltage and frequency shall be volts and 60 1 1.2 Hz within 10 seconds after the auto start signal; the steady state generator voltage and fre-quency shall be maintained within these limits during this test.
6.
Simulating a loss of offsite power in conjunction with an ESF actuation test signal, and-a)
Verifying de energization of the shutdown boards and load shedding from the . shutdown boards, b)
Verifying auto startthe diesel starts from ambient condition on the signal energizes the shutdown boards with permanently connec,ted loads within 10 seconds, energizes the auto-connected emergency (accident) loads 'brough tha load sequencers and operates for greater than or equa's to 5 minutes while its generator is loaded with the emergency
! loads. After energization the steady state voltage and frequency of the emergency, busses shall be maintained at 6900 690 volts and 60 1.2'Hz during this test.
c)
Verifying that all automatic diesel generator trips, except engine overspeed and generator differential, are automatically bypassed upon loss of voltage on the shutdown board and/or safety injection actuation signal. .
7.
Verifying the diesel generator operates for at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
During the first 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> of this test, the diesel' generator lR53-shall be loaded to greater than or equal to-4490- kw and during the remaining 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> of this test, the diesel enerator shall be loaded to greater than or equal to 4900 kw. 48'/0 Woo October 28, 1986 SEQUOYAH - UNIT 1 3/4 8-4 '
Amendment No. 49
l ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)
Within 5 minutes after completing th'is 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> test, perform Specification 4.8.1.1.2.d.4. The generator voltage and fre- lR56 quency shall be 6900 690 volts and 60 1.2 Hz within .
10 seconds after the start signal; the steady state generator voltage and frequency shall be maintained within these limits during this test.
- 8. Verifying that the auto-connected loads to each diesel generator ,
do not exceed the 2^Nkout^^
co" her rating of 4000 kW. 1 4400
- 9. Verifying the diesel generator's capability to:
a) Synchronize with the offsite power source while the genera-tor is loaded with its emergency loads upon a simulated restoration of offsite power.
b) Transfer its loads to the offsite power source, and c) Be restored to its shutdown status.
- 10. Verifying that the automatic load sequence timers are OPERABLE with the setpoint for each sequence timer within + 5 percent of its design setpoint. ~
- 11. Verifying that the following diesel generator lockout features prevent diesel generator starting only when required:
a) Engine overspeed b) 86 GA lockout relay
- e. At least once per 10 years or af ter any modifications which could affect diesel generator interdependence by starting the diesel generators simultaneously, during shutdown, and verifying that the diesel generators accelerate to at least 900 rpm in less than or equal to 10 seconds.
- f. At least once per 10 years
- by:
- 1. Draining each fuel oil storage tank, removing the accumulated sediment and cleaning the tank using a sodium hypoclorite solution, and '
- 2. Performing a pressure test of those portions of the diesel fuel oil system design to Section III, subsection ND of the ASME Code at a test pressure equal to 110 percent of the system design pressure.
"These requirements are waived for the initial surveillance.
~\
February.3, 1987 SEQUOYAH - UNIT 1 3/4 8-5 Amendment No. 52
I i
i ELECTRICAL POWER SYSTEMS N
SURVEILLANCE REQUIREMENTS (Continued)
- 4. Verifying the diesel starts from ambient condition and accelerates to at least 900 rpm in less than or equal to 10 seconds. The generator voltage and frequency shall be !
6900 2 690 volts and 60 1.2 Hz within 10" seconds after the IR44 start signal. The diesel generator shall be started for this ;
test by using one of the following signals with startup on each i signal verified at least once per 124 days:
a) Manual.
i b) Simulated loss of offsite power by itself.
c) An ESF actuation test signal by itself.
- 5. Verifying the generator is synchror<ized, ?caded to greater than I Woo - or eoual to-4MG y kw in less than or equal to 60 seconds", and lR44 operates for greater than or equal to 60 minutes, and 6.
Verifying the diesel generator is aligned to provide standby power to the associated shutdown boards.
- b. At least once per 31 days and after each operation of the diesel where the period of operation was greater than or equal to 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> l
by checking for and removing accumulated water from the engine-mounted fuel tanks.
- c. At least once per 92 days and from new fuel oil prior to addition f
.)
to the 7-day tanks by verifying that a sample obtained in accordance {
i with ASTM-0270-1975 has a water and sediment content of less than or equal to .05 volume percent and a kir.amatic viscosity @ 100 F of greater than or equal to 1.8 hut less than or equal to 5.8 centi- )
stokes when tested in accordance with ASTM-0975-77, and an impurity {
i level of less than 2 mg. of insolubles per 100 ml. when tested in j accordance with ASTM-D2274-70.
- d. {
At least once per 18 months during shutdown by: 1
- 1. Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's recommendations for this class of standby service, j
- 2. Verifying the generator capability to reject a load of greater than or equal to 600 kw while maintaining voltage at 6900 + 690 volts and frequency at 60 + 1.2 Hz.
j
- 3. Verifying the generator capability to reject a load of-4000- kw ;
without tripping. The generator voltage shall not exceed 7866 volts during and following the load rejection. ~
- The aiesel generator start (10 sec) and load (60 sec) from standby conditions shall be performed at least once per 184 days in these surveillance tests. All other diesel generator engine starts and loading for the purpose of this sur- R44 veillance testing may be preceded by an engine idle start, followed by gradual acceleration to synchronous speed (900 rpm), synchronization, and gradual loading.
')
SEQUOYAH - UNIT 2 February 3, 1987 3/4 8-3 Amendment No. 44
. - _ - -__O
1 l
{- .
ELECTRICAL POWER SYSTEMS 1
)
g SURVEILLANCE REQUIREMENTS (Continued) -
L/ VO '#)
- 7. - Verifying the diesel generator ' operates for at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. lR41 During the first 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> of.this test, the dies 1 generator.
shall be loaded to greater than or equal to kw and during 1 the remaining 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> of this test, the diesel generator shall. !
be loaded to greater than or equal to 4000_- kw. The generatorJ4CO 1 voltage and frequency shall be 6900 690 ' volts.and 60 1.2 Hz j within 10 seconds after the start signal; the steady. state )
. generator voltage and frequency shall be maintained within these-limits during this test. Within 5 minutes after completing this 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. test, perform Specification 4.8.1.1.2.d.4.b 3
- 8. Verifying that the auto-connected loads to each diesel-
<lR41 generator do not exceed the 2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> rating of-4000- kw.
ContinuouJ 4400 .,
l 9. Verifying the' diesel generator's capsbility to: ]R41 a) Synchronize with the offsite power source while the l generator is loaded with its emergency loads upon a i simulated restoration of offsite power.
)
b) Transfer its loads to the offsite power source, and j
e).5' 10.
c) Be restored to its shutdown status.
Verifying that the automatic load sequence timers are OPERABLE- lR41 with the setpoint for each soquence timer within + 5 percent of its design setpoint.
I
- 11. Verifying that the following diesel generster loc.keut-features prevent diesel generator starting only when required: lR41 a) Engine overspeed.
b) 86 GA lockout relay
~
- e. At least once per 10 years or after any modifications which could affect diesel generator interdependence by starting the diesel generators simultaneously, during shutdown, and verifying that the diesel generators accelerate to at least 900 rpm in less than or equal'to 10 seconds.
-)
October 28, 1986 SEQUOYAH - UNIT 2 3/4 8-5 Amendment No. 41
i .
ENCLOSURE 2 PROPOSED TECHNICAL SPECIFICATION CHANGE SEQUOYAH NUCLEAR PLANT UNITS 1 AND 2 DOCKET NOS. 50-327 AND 50-328 (TVA-SQN-TS-87-32)
DESCRIPTION AND JUSTIFICATION FOR .
REVISION OF DIESEL GENERATOR j CONTINUOUS AND TWO-HOUR LOAD RATINGS l
i
ENCLOSURE 2 Description of Change The proposed change revises the diesel generator continuous rating in surveillance requirements (SRs) 4.8.1.1.2.a.5, 4.8.1.1.2.d.3, !
4.8.1.1.2.d.7, and 4.8.1.1.2.d.8; and the two-hour rating in SR 4.8.1.1.2.d.7 (units 1 and 2). The wording of SR 4.8.1.1.2.d.8 is also changed to be consistent with industry standards.
Reason for Change 1 l
The continuous and two-hour ratings for the diesel generators currently in the technical specifications do not ensure that the diesel-generator sets will meet the manufacturer's ratings for the test method used. The manufacturer's ratings for the diesel-generator sets were supplied to NRC 3 in a letter dated February 27, 1987. A copy of this letter is included as i i
an attachment. The proposed revision to the surveillance requirements l will ensure that surveillance testing is representative of the j manufacturer's ratings, l
1 The wording change to specification 4.8.1.1.2.d.8 is made to provide '
consistency between the surveillance requirements and IEEE Standard 387-1972. SQN complies with IEEE Standard 387-1972.
Justification for Change In the letter referenced above, it was indicated that the rated output of I
the diesel-generator set was dependent on the power f actor of the load to which it is connected. The capability curves for the diesel-generator sets were included as figure 1 of the attached letter. For power factors from unity to 0.88, inclusive, the diesel-generator set is engine limited. The diesel-generator set is generator limited for power f actors of 0.88 to 0.80. The continuous and two-hour ratings of 4,000 kW and 4,400 kW currently in the technical specifications are the limiting ratings for a power factor of 0.80. The diesel-generator sets, however, are not tested at this power factor.
The system operating instructions for the diesel generators require that the reactive power be maintained greater than or equal to 750 kVAR and less than or equal to 2,380 kVAR. In this range, the diesel-generator set is engine limited. This corresponds with a continuous rating of 4,397 kW, and a two-hour rating of 4,837 kW. For surveillance purposes, values of 4,400 kW and 4,840 kW will be used for the continuous and the two-hour rating, respectively. This round-off is in the conservative direction and is appropriate for the scaling of the meters in the control room (200-kW increments). Performing surveillance testing to these values will ensure that the diesel-generator sets will meet the manufacturer's ratings.
The diesel-generator sets must be dorated for the first two to three minutes of operation after a cold start. The derating is due to t*ne supercharger / turbocharger not being fully operational until the unit's temperature is at or near its operating temperature. However, it is not appropriate to test the derated two-hour rating because the testing
sequence used in the surveillance instructions ensures that the diesel .
generator set is at or near operating temperatures before the two-hour load test is performed. . Revising'the wording of the surveillance requirement is done to make the terminology consistent with that of IEEE Standard 387-1972. The standard is' written in' terms of continuous and two-hour ratings, and the SQN Final Safety Analysis Report no longer.makes reference to a 2,000-hour rating for the diesel generators. .SQN complies ..
with IEEE Standard 387-1972.
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i o____._. . _ _ _ _ _ . _ _ _ _ . _ _ . _ _ ___
e kt (,$YMd A f t
$ L4 4 370227 811 ///f SN 157B Lookout Place -
FEB 271987 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Office of. Nuclear Reactor Regulation Washington, D.C. 20555 -
Attention: Mr. B. J. Youngbl'ood ?
In the Matter of ) Docket Nos. 50-327 Tennessee Valley Authority ) 50-328 I
SEQUOYAH' NUCLEAR PLANT - ELECTRICAL CALCULATIONS - DIESEL GENERATOR RATINGS l
In response to a verbal request from NRC TVA is providing additional q information on the engine and generator ratings for the Sequoyah diesel i generator system. Enclosure 1 provides a summary of the vendor supplied information for the generators and engines. Enclosure 2 provides a summary of 1 the diesel loading calculations. These calculations include the evaluation of f dead load pickup capability in the hot and cold conditions.
{
Very truly yours, TENNESSEE VALLEY AUTHORITY Original Signed By R. L. Gridley R. Gridley, Director l Nuclear Safety and Licensing l Enclosures , I cc (Enclosures)
U.S. Nuclear Regulatory Commission Region II Attn: Dr. J. Nelson Grace, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Mr. J. J. Holonich Sequoyah Project Manager U.S. Nuclear Regulatory Commission 7920 Norfolk Avenue Bethesda, Maryland 20814 Mr. G. G. Zech, Director TVA Projects U.S. Nuc1 car Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Sequoyah Resident Inspector Sequoyah Nuclear Plant 2600 Igou Ferry Road Soddy Daisy, Tennessee 37379
~
&&SrJ9ftf5 @DffP
..e .
l
-. _. nny U.S. Nuclear Regulatory Commission t 2, ni <hs01 MRH:MJB:EBD cc (Enclosures) ~
l H. L. Abercrombie, O&PS-44 Sequoyah
! R. W. Cantrell, W12 A12 C-K E. S. Christenbury, E11 B33 C-K W. H. Hannum, BR IN 76B-U H. R. Harding, O&PS-4, Sdquoyah T. A. Ippolito, LP SN 121B-C D. R. Nichols, LP SN 302B-C L. M. Nobles, POB-2, Sequoyah R. C. Parker, LP 4N 45A-:C' R. K. Seiberling, 716C EB-C D. L. Williams, W10 B85 C-K e
0624c
=
ENCLOSURE 1 SEQUOYMI NUCLEAR PLANT l
SUMMARY
OF DIESEL GENERATOR RATINGS l
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The power un.it is a tandem package cornprising of two k engines driving one (1) Electric Products pencrMor. (25cc D379FOOOOl. ' -
) 1910 16-045E4 PSD drnwinej j
j b 7he rating of the power unit at 90 F is: i I .
}
' ENGJNE RA'r7NG (2):
Continuous: _6140 BMP - 4385 KW 2000 Hourfyr: 0040 BHP - 4750 KW l 200 Hour /Yr: 6840 EMP - 4885 KW '
4 Hour /yr: 6970 BHP - 4978 KW 1g Hour /Yr: -
7040 GHP - 5000 KW .
GENRRATOW UtM NG:
475n KW 5000 KW
- 20c>O hour coni.inuous ratinp i
s hour 3025 KW -
0.0 P.F., 10% overload, 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> in any 24 hourt, 0900 Volts, 3 Phase, 60 Hert.7, 900 HPM.
The power unit is furnished conplc1.c with: !
A) Accedsory Rack !
! \
- 1) Expansion Tank with sight glass
- 2) Lube Oil Cooler
- 3) Engine Tc:minal Box '
- 4) Main Lube Oil Filter
- 5) Auxiliary Turbo Lube Oil Filter
- 6) P:chester
- 7) Engine Water Temp Centrol Valve i B)
Alarn Temp & Pressure Contactnakers
- 3) Fuel tanks in engine skid.
C) .
.. saddle support.Four Air tanks per power package counted on skid by means o D) Two heat exchangers per power package :tounted on the skid.
6 E)
. Switchpoar and Co$ trol Assembly consisting of:
- 1) !!ngine Control Panci 2)
- 3) Generator Exciter CubicleEngine Coupe Panc1 mounted on Auxilisry E
- 4) Goncrctor Neutral Cubicle .
F) Motor driven air cenpressors.
i m B f
w "
l t__-__ .-
y k .
~ .'
o,. a t Gew tA3 Anal 5u-3 54t4 cis Y'
M EB 77 062l CREATORS F o' ELECTRICAL EN2-D51% RP POWER SUPPLY SYSTEMS EST )
.( (D. aPOWER
% SYSTEMS m m m asamasons 4
i . -
' Ec"S EP Ean,I.!NE
-e E..>.n-a,c mm
]
June 6,l1979 , ..
4
. : . 1
. 1 i
Termessee Va l ley Authority Division'of Purchasing )
Post office Box 2000 '
Chattanooga, Tennessee 37401 -
ATTENTION: Mr. [. Marcel A'dersonn Purchasing Agent ' '
REFERENCE:
Contract 71C61-92652-Sequoyah Nuclear Pfant
)
Diesel Engine Driven Emergency Generator Unit Power Systems Proposal No. 79130 Gentlemen: .
In reply to your letter of April 25, 1979, requesting
' additional generator capacity from the existlog unlis at the Sequoych Nuclear Plant, Power Systems advises the following: -
1)
The existing generators rated 4000 KW .B P,F[ et the. ~
,2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br />' rating are'l'imited to tnet'~riting nt' 't fits ' t i m,e -
t as the7 esults of the heat run Indle'ates that increasin !
the retIng wlIi reduce the 40'yeer Iife qual'1fIcation. g 11 hasgenerators) of the been suggested by Electric Products (manufacturer
._ rated that a fleid test be conducted at loa.d and temperature ::.easureme'nts-be made to fit)d out what the generator characteristic,s are.'under actual' conditions. This would serve two purposes: , . .
a)
. To f ind out what~the if the unit could b'e ' rereted and -If so, degradation, if any, would be. '
b)
To aid in sizing of forced' cooling ^ equipment.lf T.V.A.
chose thet_ solution and also aid in determining ;
what the unit could be rarated to. .
j The above tests should be conducted in the presence of }
I representatives from Electric Products and Power Systems.
'i e
e',',' (# h. '
_ _ _ _ _ _ - -----_-- _ J
f.'
piewt
' c,e n m +o r Leg Aqsts Eth-D51M R P l
POWEA SYSTEMS DMsicN .SQM Cl6 June 6, 1979 .
.s Mr. J. Marcel Anderson Tennessee Yalley Authority .
Page 2 ,-
s'
- 2) I Ke.e/
4400 KW continuous, (4750 KW -xi sti ng *eng i nes . for th i s app l icat i on -
combustion air. 2000 Hr./Yr. et 90'F -
f o see ceraTing curve attached.re,q l e v a t e d co~m b u s T i o n,. a [1TNEp Eret u re
- Upgrading the units may require a changeout of the generator or rerete es per above, exciter, cooling water heat exchanger, possible generator control equipment and possible replacement of 1 generator enchor bolts ey a result of a larger generator.
The 2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> rating of in approximately 3 minuter 4 75af0t'er O( (sta'rt
. 8 P.F. ) will be evellebte signal.
Since per th'Is falls short of the requested additional 1500 KW unit, with T.V.A.we felt that this option should be discussed prior to proceeding. -
For en additional unit identical to the Watts Bar units furnished on Contract 74C63-B3080, Power Systems is pleased to quote as follows:
- 1) $1,321,959.00 plus B.L.S. from June 1979.
- 2) Progress payment to apply.
- 3) .
Dellvery approximately 12 months A.R.O.
- 4) Afternete:
' Cost plus fixed fee contract to be negotiated.
The above pricing reflects considerable escalation over the original the Wetts Bar Nuclear Plantdiesel generetors which you purchased f rom us for in 1974 In feet, escalation soered to such a degree, we the reasons pricos had increased.conducted an Internal investigation into We feel sure you will recall the years 1974 and 1975 es years when prices eseglated btyond anything industry had seen before.
We found, diesel has through our Investigation, that the Electro-Motive .
increased in price by 1345 and I generator, the increaseby 1795 since your early projec,t.similarly These, theprices and alarming escalation. in all auxiliaries, have caused this rather our price increases. We felt you deserve.d an explanation of This unit will Bar units with respect to seismic, ambient conditions,be loading, designed specification, code end standards (latest edition), etc.
L .
l
/9 l
. - ~
L g,:' s t . s- '
, ' J5C)bi Cl7 Powra SYSTEMS Dndsto.4 Egt-b5173RP June 6, 1979 . ar-j
( -
t Mr. J. Marcel Anderson -
.' Tennessee Page 3 ' Valley Authority NOTE:
It is our understanding that should T.V.A. .
elect to procure.this unit, the codes and . -
standards applicable would be the.same as ;
Please be advised.that-this willnow required on the Ye
. a higher price and a result in
.' mately eighteen (18). months. lead time of approxi ,
1974 and A.S.M.E. Section til Class 31.E.E.E.'323-similar but noncompliance will result in the unit being identical. We are now in '
l will be advised as soon as pricing isthe proces
,a va i la b l e.
order for Watts Bar will be manufacturedIt erator on should also b codes and standards. Therefore, to the original 3 substitute in en effort to accelerate deliveryit may not be a suitable .
Should the
{-
s we would be pleased to work with you standard commercial units until permanent on of temporary
, the supplyl i be made.
. Installation could j In the event T.V.A. .
we would be pleased to work with you to esupply M.T.U. system thdecides t$ re within the components. same Enclosed area that exists utill:InD many is a M.T.O. Engine Brochure of the for your exi' sting revie w.
. Very truly yours, ;
POWER SYSTEMS ,
A MORRISON-KNUDSEN DIVISION Ifaek//
Milton A. Sharpe g -
Sales. Engineer *
\
MAS:ays -
Attachment:
E4 Derating Chart
Enclosures:
M.T.U. - 1863 ,
ZMW 05040 cc: Mr. Tom Hogen, T.V.A.,
Knoxville ,
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A-SI-f '
iED
"2"f%..t l
IEEE standard Criteria for l Diesel-Generator Units Applied as i iM standby Power supplies for :
Nuclear Power Generating Stations :.
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W rett N. arNte4 tttt ETANDAAD cr.rrEMA FDR D!tsti,ctNERATUR llNf?S APPtJtD A9 -
- 2. Purpose ein meintain in the wevie, environment for 2 h S N purpoee of this nandard in t.r, provide the pr'ncipal design entena, the deatp featuma.
in am 24 h pe rw' wn m eut e r ewd nr t he ~ e ri.
ufacture'e emen hmits ans mthw- -weme g
y the mamtena nce mt** vel a-u bhehee fe thv een.
M terties sad qualificauen requirements for the in6ndua.16enal.renerster unita which enable
, them to meet their funeuenal requirements as a sinuour eetmg.
g% , , , ,,,,,, ,,, , 4 f
un v un a.
F , ' ;.iszt crf the standby power supply unoer the con.
6uons produced by the desip baats evenu esta.
loged in the Plant Safety Annivsis,
).re'ieriu>r i ent at ne eovioninews retiris 3.8 redundant equipment or erstem. An y
p*
r-equipment or system that duphcetes the epen.
tial function of another equipment or eystem to [i y!
l the enant that either may perform the required
- 3. Definitions function regardlene of the state of operetten or L!
failure of the ether, T* '
3.1 acceptable. Demonstrated to be adequate put by the safety analyale of the plant. A,,,
3.9 service environment. The aggrerste of m conditions surrounding the diesel.generater l
3.2 design basis events. Postulated eventa used in the design to estabhsh the performance unit in ita encionurt, while wrving the cemrn [{
requirements cf the structure. and sysi.ema, load during norinal, accident. and poet necident operation. f
.ar 3.3 dreign lo4d. That combination of electric loads, having the meat severy power demand 3.30 standby pewer supply. The power nup.
ply that is aclected to furnish electric ener;:y f charactenstic, which is p*ovided with electric when the preferred power supply is rot avail. 1 enero from a diesel.renerator unit for the op. eble. ,
eration of tniineered safety fe. + es and other 7 l systems required during ano sodoming shut.
down of the reactor.
3.!! start diemel signtd. That input Sipcl to fi !
the diesel. generator unit start logic which insti- ,
I afes a diesel generator unit start sequence. tag 3.4 diesel.geu:erator unit. An independent 4
ocurre cf standby electrical power that consist,, Ni 3.12 surveillance. The determination of the '
cf dieneLfueled internal ecmbusuon enftne ter e nrines) coupled 6teetly to an electrical genera.
state or cendloon of a system or suesystem, k'
((
terts), the aneciated mMhanical and electrical auxilicry systems anc the centrol, protecticri, and surve!!!ance synems. king
- 4. References
- 3.5 load profile. The mspitude and duration
[1] ANSI C50.101977, American Nstienal usur of lads spphed in a preacnbed ume secuence.
meluding the trarment and steady state charae. Standerd General Requiremer..a for Synenro-news Machines!
tennies of the i"bvidual loads.
et
- 12) ANSI N1951976. American National i 3.6 quallfied diesel. generator unit. A die. Standard fuel Oil Syetems for Standby Diesel. Der sel Fenerator unit that meete the qwahfiestien Generston, requartmente cf thie etancard- g,,,,
- 13) ANSMEEE Std 3441975 (R 1980) !EEE 3 'l rating of diesel. generator unit Recommenced Praeuees for Seismic re.ishfica.
tien of Class IE Ecuspment for Nuclear Power 0.7.1 continuova reung. Tne Hectric power Genera tine Stauona.
outp-t capnihty that thr ein aci rencrator unit g
can me<ntnin m the .crure enuronm>m for ,g m Ebm hm M #
6760 h cf exrnom, p. r rommoniyent with only O*""*'*"~ f g
- schedwice cytoc fur ma miennnet- h 3 ".2 e h e rt u me r o t t r c. The e le.et e r m e. ***'"'*'"'**'"'* " **
rrierii. Ar%erweri %e ponal h&ahasPd inshaute.14 4n P.*ise- DlWT output CsDaclljt% tr:01 tne ole el gene'P to' V'un war. bew iert. NY 10010 p h
e hims p
m: 24 -
l I '
W i k l I
J 1
. ENCLOSURE 2 i SEQUOYAH NUCLEAR PLANT j
DIESEL GENERATOR CALCULATIONS SQN-E3-002
]<
, Pages 103a through 105 . -- )
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Fr m M-K R e.por F No. 6957 & , R 1 , Me 3 ' M 8 6
( A hon D.) f Can the engine handle total cyclic loads, starting simultaneously, at. time greater than 21 minutes after the start signal, consisting of 387 HP plus 1' the random load of 40.96 HP and 9 KW?
- 1. The engine will be in its hot condition at T>21 minutes.
~
U The nominal rating at 90 F is 3,070 x 2 = 6140; at 970 F, the rating is 6,140 x .982 (correction for higher ambient) = 6,029 BHP. i The KW equivalent = 6,029 x .746 x. 96 (gen eff)
= 4,318 KW cont.
110% KW = 4,750 KW The b hour rating (max) is 3.520 x 2 = 7,040 3HP; at 97 0F = 7,040 x
.952 = 6.913 BHP.
Di (
KW = 6,913 x .746 x .96 = x,9,251Sl KW KW-
?
i n /:5 3
! 2. 387 HP - Assume 6 x HP inrush '
Start P.F. = 0.4 Start KVA = 287 HP x 6 = 2,322 KVA t 2322 KVA x .4 = 929 KVAR M f
Run 387 x .746 x .1/9 i
r-321 KW
' lQ M ,y ,.
g1 3.
The random load is 167 KW start and 45 KW run. >
4.. (a) Total run load in step = 321
- 45 366 KW Total start load in step = 929
+167 1096 KW
- 5. Assume full sequenced loacs on system.
(a) Loss of Off-Site Power 3562 KW, 1686 KVAR, 3940 KVA 3562 KW 3
- 366 KW r
, 3
+ g KW
,4292 KW when motors start - OK i
(b) Phase A -
1 3787 KW, 1990 KVAR, 4278 KVA 3787 KW
- 366 R Tl KW *
+1096 4517 KW when motors start .O_K_
_ _ . _ _ _ _ _ _ _ _ _ _ _ _ __w
SQN E3 002 g 40[
o , t.
'( 2 Morrison-Knudsen Company May 5. 1986 2.
Dun' to roundup error. for calculation, running KV h lower.
Using the formula.on last page of section 2 bas been found to be maximum KV which can be applied at the 30-second step is:. the rea
'4682 KV --
-3099 KV
+ 41 KV Actual running load prior to 30-second load
-1100 KW 2-33 HP load.startint valves that turn off at 7 - 6 seconds 30-second 324 KW TOTAL RANDOM LOAD that can be 30 added at I Also, for any other evcluation up to 3 minutes
! does not exceed 4482 XW.
the discels will pass acceptable frequency recov,
- 3. ery.
The engine is considered hot after 3 minutes .
A.
4750 KW is the 100 ~porcent rating of th e diesel engine only,
( 5.
t The accuracy of engine evaluation is'15 porcent if i accurate. -
- nput information is 6.
TTA specification 1156, service .
conditionspecified e requirements aThe. in acce Any at (615)questions 632-7108.or comments on this matter should b e directed to W. R. Kistler Vory truly yours.
TENNESSEE VALLEY AUTHORITY
. ~ ~ ' ~ * -
-Original Sirned B 7
- T,1,. M o j a n gg;{C.A.Chandley,ChiefMechanicalEngineer r.>-n
(
5/5
- 's
- p a 4QN EI 002 . pg ]
' \bk
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TENN ESSEE VALLEY AUTHORITY -
KNOXVILLE. TENNESSEE 37eO2
( ,
W1 C126 400 Wost Surnmit Hill Drive May s. 1986 B44 '86 05 0 2
. 60 Morrisc'n-Knudsen Company . . ,
. Power Systems Division .
Post Office Box 1928 "
Rocky Mount, North Carolina 27802-1928
! Attention:
- t Mr. Ed Martin -
I
, Gentlemen:
I
. l SEQUOYAH NUCLEAR PLANT UNITS 1 AND'2 !
STANDBY DIESEL GENERATORS !
CONTRACT 71C61,-92652 - N2M-52 l M-K/PSD IVO 6957 l LETTER NO. 42G052
)
\
REVISED LOAD SEQUENCE ANALYSIS
References:
1.
g Your letter S/N 6957C-0-0022 dated April 3,.1986 V 2.
(BAA B60409 SC1)
Telecen between Morrison-Knudsen/ Power Systems Division (M-K/PSD)(Harry'Faltor, Ed Martin) and TVA (Tom Hogan .
Bill Kistler, Peto Bowman 'Randall McIntosh) on April 17,1986 Ve acknowledge roteipt of your referenced letter, and (A). " Approved": -
Docu non t No.
Rjs Title j
NEI-< EPI T-1016 0 6957R 1
Transient Voltage Responso
.. s .. ,
Engine Cepability Report !
i To .sumarize our understandings per reference 2: 1 1.
Since 5-second theacceleration 25-second load was evaluated at full horsepower of 540 with a Limo, seconcs will have no otract, an'incroeco in acceleration time to 6 or 7 horsepower is the worst case. 1. t4 . , 5-zocond' acceleration time at maximum
( !
SENTFM H GB t/EgtgSTER RLE-An Coual 00;d'tunih> N- - ~ - ' ~
1 4
1 l
ENCLOSURE 3 I
PROPOSED TECHNICAL SPECIFICATION CHANCES !
1 SEQUOYAH NUCLEAR PLANT UNITS 1 AND 2 {
l DOCKET NOS. 50-327 AND 50-328 'I 1
i (TVA-SQN-TS-87-32)
DETERMINATION OF NO SIGNIFICANT HAZARDS CONSIDERATIONS ..
I l,
1
--.-._w----- ---2
l ~
ENCLOSURE 3 SIGNIFICANT HAZARDS CONSIDERATIONS 1.
Is the probability of an occurrence or the consequences of an accident previously evaluated in the safety analysis report significantly increased?
No. t The proposed revision to the surveillance test requirements is i in the conservative direction. It ensures that the surveillance -
criteria is appropriate for the test method used. The change makes the acceptance criteria more restrictive, and ensures that the diesel generator sets can obtain the manufacturer's load ratings for the l test method used. The wording change simply provides clarity and consistency between the specifications and industry standards.
Therefore, the probability or consequence of any evaluated accident in the safety analysis report is not increased.
2.
l Is the possibility for an accident of a new or different type than evaluated previously in the safety analysis report created?
No.
The proposed change requires no hardware or setpoint changes.
Thechanged.
not function of the diesel generators and its support equipment is The change makes the acceptance criteria for the diesel-generator set load ratings more restrictive, and ensures that it is appropriate for the test method used. As such, the possibility of an unevaluated accident is not created.
3.
Is the margin of safety significantly reduced?
No.
The proposed change makes the surveillance criteria more restrictive by testing the diesel-generator sets to the manufacturer's ratings. The wording change will provide clarity to the surveillance requirement and consistency with industry standards.
Because of this, the proposed change will increase the margin of safety. l
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