ML20147E163

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Amends 64 & 56 to Licenses DPR-77 & DPR-79,respectively, Changing Tech Specs to Increase Diesel Generator Continuous & 2 H Ratings in Surveillance Requirements
ML20147E163
Person / Time
Site: Sequoyah  Tennessee Valley Authority icon.png
Issue date: 01/07/1988
From: Zech G
NRC OFFICE OF SPECIAL PROJECTS
To:
Shared Package
ML20147E128 List:
References
NUDOCS 8801210029
Download: ML20147E163 (14)
v • d • e


Text

I' 8 8500

['g b 'o UNITED STATES

! y . q/[,} NUCLEAR REGULATORY COMMISSION W/ ; WASHINGTON. D. C. 20555 f

TENNESSEE VALLEY AUTHORITY DOCKET NO. 50-327 SEQUOYAH NUCLEAR PLANT, UNIT 1 AMEN 0 MENT TO FACILITY OPERATING LICENSE Amendment No. 64 License No. DPR-77

1. The Nuclear Regulatory Comission (the Connission) has found that:

A. The application for amendment by Tennessee Valley Authority (the licensee) dated August 11, 1987, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act),

and the Connission's rules and regulations set forth in 10 CFR Chapter I; B. The facility will operate in confortnity with the application, the provisions of the Act, and the rules and regulations of the Comission; C. There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Comission's regulations; D. The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of tht, public; and E. The issuance of this amendment is in accordance with 10 CFR Part 51 of the Lonnission's regulations and all applicable requirements have been satisfied.

9801210029 800107 7 PDR ADOCK 050 P

, 2. Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment and paragraph 2.C.(2) of Facility Operating License No. DPR-77 is hereby amended to read as follows:

(2) Technical Specifications ,

The Technical Specifications contained in Appendices A and B, as revised through Amendment ? o. 64, are hereby incorporated in the license. The licensee shall operate the facility in accordance with the Technical Specifications.

3. This license amendment is effective as of its d6te of issuance.

FOR THE NUCLEAR REGULATORY COMMISSION

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Gary. . Zech, Assistant Director for Projects TVA Projects Division Office of Special Projects Atte.chment:

Chances to the Technical Specificaticos Date of issuance: January 7, 1938 m

9

ATTACHMENT TO LICENSE AltENChENT NO. 64 FACILITY CPERATING LICENSE NO. OPR-77 DOCKET NO. 50-3?7 Revise the Appendix A Technical Specifications by removing the pages identified below and inserting the enclosed pages. The revised pages are identified by the captioned amendment number and contain marginal lines indicating the area of change. Overleaf pages* are provided to maintain document completeress.

REMOVE, INSERT 3/4 8-3 3/4 8-3 3/4 8 4 3/4 8-4 3/4 E-5 3/4 8-5 3/4 8-6 3/4 8-f*

ELECTRICAL POWER SYSTEMS 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 690 volts and 60 1 1.2 Hz within 10* seconds after the start signal. The diesel generator shall be started for this test by using one of the following signals with startup on each signal verified at least once per 124 days:

a) Manual, b) Simulated loss of offsite power by itself.

c) An ESF actuation test signal by itself.

5. Verifying the generator is synchronized, loaded to greater than or equal to 4400 kw in less than or equal to 60 seconds *, and l 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 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 addition 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 @ 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 ASTM-D2274-70,
d. At least once per 18 months during sautdown by:
1. Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manuf acturer'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 "aintaining voltage at 6900 1 690 volts and frequency at 60 1.2 Hz.
3. Verifying the generator capability to reject a load of 4400 kw l without tripping. The generator voltage shall not exceed 7866 volts during and following 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 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 acceleration to synchronous speed (900 rpm), synchronization, and gradual loading.

SEQUOYAH - UNIT 1 3/4 8-3 Amendment No. 52, 64

T 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-connected shutdown loads through the load 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 shall be maintained at 6900 t 690 volts and 60 1 1.2 Hz during this test.

5. Verifying that on a ESF actuation test signal (without loss of offsite power) the diesel generator starts on the auto-start signal and operates on standby for greater than or equal to 5 minutes. - The generator voltage and frequency shall be 6900 1 690 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 the diesel starts from ambient condition on the auto-start signal, energizes the shutdown boards with permanently connected loads within 10 seconds, energizes the auto-connected emergency (accident) loads through the load sequencers and operates for greater than or equal 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 shall be loaded to greater than or equal to 4840 kw and during l 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 4400 kw.

l SEQUOYAH - UNIT 1 3/4 8-4 Amendsent No. 48, 64 t

i i

i ELECTRICAL POWER SYSTEMS 1

SURVEILLANCE REQUIREMENTS (Continued) f

.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. The generator voltage and fre- '

quency shall be 6900.1 690 volts and 60 t 1.2 Hz within t 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 continuous rating of 4400 kW.

l

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 I 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 i prevent diesel generator starting only when required:

a) Engine overspeed b) 86 GA lockout re' lay  !

e. At least once per 10 years or after any modifications which could  !

affect diesel generator interdependence by starting the diesel  ;

l generators simultaneously, during shutdown, and verifying that the  !

diesel generators accelerate to at least 900 rpm in less than or

=

i j equal to 10 seconds.

f. At least once per 10 years
  • by: '

I

1. Oraining each fuel oil storage tank, removing the accumulated
sediment and cleaning the tank using a sodium hypoclorite -

a solution, and -

i i~

2. Performing a pressure test of those portions of the diesel i fuel oil system design to Section III, subsection ND of the  !

, ASME Code at a test pressure equal to 110 percent of the i

. system design pressure. l t

j *These requirements are waived for the initial surveillance. l i

l I

i l

SEQUOYAH - UNIT 1 3/4 8-5 Amendment No. M, 64 i >

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

4. 8.1.1. 3 The 125-volt D.C. distribution panel,125-volt 0.C. battery bank and associated charger for each diesel generator shall be demonstrated OPERABLE:
a. At least once per 7 days by verifying:
1. That the parameters in Table 4.8-la meet the Category A limits.
2. That the total battery terminal voltage is greater than or equal to 124-volts on float charge,
b. At least once per 92 days by:
1. Verifying that the parameters in Table 4.8-la meet the Category B limits,
2. Verifying there is no visible corrosion at either terminals or connectors, or the cell to terminal connection resistance of these items is less than 150 x 10 6 ohms, and
3. Verifying that the average electrolyte temperature of 6 connected cells is above 60 F.
c. At least once per 18 mo'iths by verifying tnat:
1. The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deterioration.
2. The battery to battery and terminal connections are clean, tight and coated with anti-corrosion material.
3. The resistance of each cell to terminal connection is less than or equal to 150 x 10 6 ohms.
4. 8.1.1. 4 Reports - All diesel generator failures, valid or non-valid, shall be reported to the Commission pursuant to Specification 6.9.2.2.

t i

SEQUOYAH - UNIT 1 3/4 8-6 Amendment No. 52 l

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y i . .- (gq io UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555

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TENNESSEE VALLEY AUTHORITY DOCKET NO. 50-328 SE0VOTAH NUCLEAR PLANT, UNIT 2 AMENDMFNT TO FACILITY OPERAT!NG LICENSE Amendment No. 56 License No. DPR-79

1. The Nuclear Regulatory Comission (the Comission) has found that:

A. The applicaticn for amendrent by Tennessee Valley Authority (ths licensee) dated August 11, 1987, corplies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act),

and the Comission's rules ar.o regulations set forth in 10 CFP Chapter I; B. The facility will operate in conformity with the applicatien, the provisions of the Act, and the rules and regulations of the Commission; C. The.*a is reasonable assurance (i) that the activities authorired by thic handment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in ccepliance with the Comission's regulations; D. The issuance of this arnendrerit will not be inimical to the comon defense ar.d security or to the health and safety of the public; and E. The issuance of this amendment is in accordance with 10 CFR Part 51 of the Comission's regulations and all applicable requirements have been satisfied.

(

2. Acccrdingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license ar.endment and paragraph 2.C.(2) of Facility Operating License No. DFR-79 is hereby anended to read as follows:

(2) Technical Specifications The Technical Specifications contained in Appendices A and B as revised through Amendment No. S6 , are hereby incorporated in the license. The licensee shall operate the facility in accordance with the Technical Specifications.

3. This license amendment is effective as of its date of issuance.

FOR THE NUCLEAR PEGULATOPY COMMISSION

' b Gary . Zech, Assistant Director for Projects TVA Projects Division Office of Special Projects

Attachment:

Changes to the Technical Specifications Cate of Issuance: January 7, 1983

ATTACHMENT TO LICENSE AMENDMENT NO. 56 FACILITY OPERATING LICENSE NO OPR-79 DOCKET NO. 50-328 Revise the Appendix A Technical Specifications by removing the pages identified below and inserting the enclosed pages. The revised pages are identified by the captioned amendment number and contain marginal -

lines indicating the area of change. Overleaf pages* are provided to maintain document completeness.

REMOVE INSERT i

REMOVE INSERT 3/4 8-3 3/4 8-3 3/4 8-4 3/4 8-;*-

3/4 8-5 3/4 8-5 3/4 8-6 3/4 8-6*

4 0

, ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) .

4. Verifying the diesel starts from ambient condition and accelerates to at least 900 rpm in less than or equaF to 10 seconds. The generator voltage and frequency shall be 6900 1 690 volts and 60 1.2 Hz within 10* seconds after the start signal. The diesel generator shall be started for this test by using one of the following signals with startup on each signal verified at least once per 124 days:

a) Manual.

b) Simulated loss of offsite power by itself, c) An ESF actuation test signal by itself.

5. Verifying the generator is synchronized, loaded to greater than or equal to 4400 kw in less than or equal to 60 seconds *, and (

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 /> 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 to the 7-day tanks by verifying that a sample obtained in accordance with ASTM-0270-1975 has a water and sediment content of less than or equal to .05 volume percent and a kinematic viscosity @ 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 ASTM-D2274-70,
d. 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 equa' to 600 kw while maintaining voltage at 6900 + 690

~

volts and frequency at 60 + 1.2 Hz.

3. Verifying the generator capability to reject a load of 4400 kw [

without tripping. The generator voltage shall not exceed 7866 volts during and following 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 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 acceleration to synchronous speed (900 rpm), synchronization, and gradual loading.

SEQUOYAH - UNIT 2 3/4 8-3 Amendment No. 4, 56

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Cantinued)

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-connected shutdown loads through the load 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 shall be maintained at 6900 690 volts and 60 1 1.2 Hz during this test.

5. Verifying that on a ESF actuation test signal, wit!.aut loss of offsite power, the diesel generator starts an the auto-start signal and operates on standby for greater than or equal tr. 5 minutes. The generator voltage and frequency shall be 69u0 2 690 volts and 60 1 1.2 Hz within 10 seconds after the auto-start signal; the steady state generator voltage and frequency shall be maintained within these limits during this test.
6. Simulating a loss of offsite power in :onjunction with an ESF actuation test signal, 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-connected emergency (accident) loads through the load sequencers and operates for greater than or equal 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 1 690 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.

SEQUOYA> - UNIT 2 3/4 8-4 Amendment No. 41

F-

-ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

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 tne 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 shall be loaded to greater than or equal to 4840 kw and during I 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 4400 kw. The generator [

voltage and frequency shall be 6900 t 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. 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

8. Verifying that the~ auto-connected loads to each diesel generator do not exceed the continuous rating of 4400 kw. l
9. Verifying the diesel generator's capability to:

a) Synchronize with the offsite power source while the generator is loaded with its emergency loads upon a simulated restoration of offsite power.

b) Transfer its loads to the of fsite 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 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.

SEQUOYAH - UNIT 2 3/4 8-5 Amendment No. 41, 56

f f.

1 ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

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 />.  ;

Ouring 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 -'

shall be loaded to greater than or equal to 4840 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 generator shall I

be loaded to greater than or equal to 4400 kw. The generator l voltage and frequency shall be 6900 1 690 volts and 60 2 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. 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 i

8. Verifying that the auto-connected loads to each diesol '

generator do not exceed the continuous rating of 4400 kw. l

9. Verifying the diesel generator's capability to:

a) Synchronize with the offsite power source while the generator is loaded with its emergency loads upon a simulated rettoration 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 OPERABtE l with the setpoint for each sequence timer within + 5 percent of its design setpoint.  ;

i

^

11. Verifying that the following diesel generator lockout features prevent diesel generator starting only when required' a) Engine overspeed i 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 i diesel generators accelerate to at least 900 rpm in less than or equal to 10 seconds.  ;

b f

5 SEQUOYAH - UNIT 2 3/4 8-5 Amendment No. 41, 56 l

A i

~l ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) f, At least once per 10 years

  • by:
1. Oraining 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 designed to Section III, subsection ND of the ASME Code at a test pressure equal to 110 percent of the system design pressure.
4. 8.1.1. 3 The 125 volt D.C. distribution panel, 125-volt D.C. battery bank and associated charger for cach diesel generator shall be demonstrated OPERABLE:
a. At least once per 7 days by verifying:
1. That the parameters in Table 4.8-la meet the Category A limits.
2. That the total battery terminal voltage is greater than or equal to 124 volts on float charge.
b. At least once per 92 days by:
1. Verifying that the parameters in Table 4.8-la meet the Category B limits,
2. Verifying there is no visible corrosion at either terminals or connectors, or the cell to terminal connection resistance of these items is less than 150 x 10 6 ohms, and
3. Verifying that the average electrolyte temperature of 6 connected cells is above 60 F.
c. At least once per 18 months by verifying that:
1. The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deterioration.
2. The battery to battery and terminal connections are clean, tight and coated with anti-corrosion material.
3. The resistance of each cell to terminal connection is less than or equal to 150 x 10 6 ohms.
  • These requirements are waived for the initial surveillance.

SEQUOYAH - UNIT 2 3/4 8-6 Amendment No.8 n

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