ML20154P283

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Marked-up & Typed Tech Spec Pages to Revise EDG Section to Be Consistent with Station Procedures Associated with Steady State Conditions & W NSAL 93-022,for 980728 Application for Amends to Licenses NPF-4 & NPF-7
ML20154P283
Person / Time
Site: North Anna  Dominion icon.png
Issue date: 10/16/1998
From:
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML20154P265 List:
References
NUDOCS 9810220278
Download: ML20154P283 (20)
v • d • e


Text

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, 08-26-98 ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS 4.8.1.1.1 Each of the above required physically independent circuits between the offsite transmission network and the onsite Class IE distribution system shall be:

a. Determined OPERABLE at least once per 7 days by verifying correct breaker alignment indicating power availability.
b. Demonstrated OPERABLE at least once per 18 months during shutdown by manually transferring the onsite Class IE power supply from the normal circuit to the alternate circuit.

4.8.1.1.2 Each emergency diesel generator (EDG) shall be demonstrated OPERABLE: l

a. In accordance with the frequency specified in Table 4.8.2 on a STAGGERED TEST BASIS by:
1. Verifying the fuel level in the day tank.
2. Verifying the fuel level in the fuel storage tank.
3. Verifying the fuel transfer pump can be started and transfers fuel from the storage system to the day tank.

g

4. Verifying the EDG can start ** and gradually accelerate toYvnchrasediis speciD l 57eadi Q900 rnm) wwn veneratoovoltage and frequenc 160i 420 volts and 60i l * * *
  • Hz. Subsequently, verifying the generator is synchronized, gradually 05 loaded *
  • to an indicated 2500-2600 kw* *
  • and operates for at least 60 minutes.
5. Verifying the EDG is aligned to provide standby power to the associated l emergency busses.
b. At least once per 92 days by verifying that a sample of diesel fuel from the fuel storage tank is within the acceptable limits specified in Table 1 of ASTM D975-74 when checked for viscosity, water and sediment.

This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading recommendations. '

      • This band is meant as guidance to avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring of the manufacturer or momentary variations due to changing bus loads shall not invalidate the test.

NORTH A' NNA -ITNIT 1 , 3/4 8-3 Amendment No. 83,214 P

9810220278 981016 PDR ADOCK 05000338 p PM -

l- : .

08-26-98 l ELECTRICAL POWER SYSTEMS

( SURVEILLANCE REQUIREMENTS l l

4.8.1.1.2 (Ccntinued) (5 % r th w 9 r<r r e p < l e n4.cVeve.

n

) vo N oe ud +o 3 O vnfr5 Q"*l

{ q< < uem etcea e r the nogssl]u 59.[NL.)

c. At least once per 184 days, the EDG shall be started **(and aset'Terate4wat leaso [

MmnimWn less than or equal to 10 second. The generatorgoltage and frequency 4 i shall be 4160 420 volts and 6 + 6vithin MKeconds aftfr the staMiEnaQ b*a4)

The EDG shall be manually sync tronize to its appropriate emergency bus, l gradually loaded ** to an indicated 2500 to 2600 kw***, and operated for at least 60 minutes. The EDG shall be started for this test by using one of the following l signals on a rotating test basis:

a) Simulated loss of offsite power by itself, b) Simulated loss of offsite power in conjunction with an ESF actuation test signal.

c) An ESF actuation test signal by itself.

This test, ifit is performed so it coincides with the testing required by Surveillance Requirement 4.8.1.1.2.a.4, may also serve to concurrently meet those requirements as well.

d. At least once per 18 months during shutdown by-m ga g ._ , ,.oT m *'ff *Sf
1. Verifying @ on rejection of a load o greater than or equal to 610 kwAthe l voltage and frequency arediniintaMd withM160i 420 volts and 60
2. Verifying that the load sequencing timers are OPERABLE with times l within the tolerances shown in Table 4.8-1.

This test shall be conducted in accordance with the manufacturer's recomn$endations regarding engine prelube and warmup procedures, and as applicable regarding loading recommendations.

      • This band is meant as guidance to avoid routine overloading of the engine. Loadsdn excess of this band for special testing under direct monitoring of the manufacturer or momentary variations due to changing bus loads shall not invalidate the test.

NORTH ANNA - UNIT 1 3/4 8-3a Amendment No. 82,'84,214 I

. 08-26-98 ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS 4.8.1.1.2 (Continued)

3. Simulating a loss of offsite power by itself, and: l
a. Verifying de-energization of the emergency busses and load shedding from the emergency busses. l
b. Verifying the EDG starts ** on the auto-start signal, energizes the l emergency busses with permanently connected loads within 10 seconds, energizes the auto-connected shutdown loads through the sequencing timers and operates for greater than or equal to 5 minutes while its generatoris loaded with the shutdown loads. After energization of these loads, the steady state voltage and frequency shall be maintained at 4160 420 volts and 60i j
4. _ Verifying that on an ESF actuation test signal (without loss of offsite power)

%',"fp*[fyhe EDG starts *

  • on the auto-start signal and operates i on standby for creater M ** * *D N 3 ***"d L*P-e ** **hhan or equal to 5 minutesy %""g5m* <* *** u r* *+'".i" *.re,* '/g"'5.5cue

. amm. /a

5. Simulating a loss of offsite power in conjunction with an ESF actuation test l g/c signal, and
a. Verifying de-energization of the emergency busses and load shedding from the emergency busses.
b. Verifying the EDG starts ** on the auto-start signal, energizes the l emergency busses with permanently connected loads within 10 seconds, energizes the auto-connected emergency (accident) loads through the sequencing timers and operates for greater than or equal to 5 minutes and maintains the steady state voltage and frequency at 4160 420 volts and 60i
c. Verifying that all EDG trips, except engine overspeed, generator l differential and breaker overcurrent are automatically bypr.ssed upon loss of voltage on the emergency bus and/or a safety injection actuation signal.
6. Verifying the EDG 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 EDG shall be loaded to an indicated target value of 2950 kw (between 2900-3000 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 EDG shall be loaded to an indicated 2500-2600 kw*** *
    • This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelub'e and warmup procedures, and as applicable regarding loading recommendations.
      • This band is meant as guidance to avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring of the manufacturer or momentary variations due to changing bus loads shall not invalidate the test.

NORTH ANNA - UNIT 1 3/4 8-3b Amendment No. 83,214 L

08-26-98 ELECTRICAL POWER SYSTEMS

, SURVEILLANCE REQUIREMENTS l

4.8.1.1.2 (Continued)

7. Verifying that the auto-connected loads to each EDG do not exceed the l j 2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> rating of 3000 kw.

l 8. Verifying the EDG's capability to:

a) Synchronize with the offsite power source while the EDG is loaded with

its emergency loads upon a simulated restoration of offsite power, l b) Transfer its loads to the offsite power source, and c) Proceed through its shutdown sequence.
9. Verifying that the following EDG lockout features prevent EDG starting l only when required:

4 a) Remote Local Selection Switch b) Emergency Stop Switch

10. Verifying the EDG's hot restart capability by: g a) Operating the EDG** loaded to an indicated 2500 to 2600 kw*** for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or until operating temperatures have stabilized, and Qhygfg '*" h b) Within 5 minutes of shutdown verify the EDG can be started **@ g#p.,#d, ,

'n less than or equal to 10 second he HggSj pr% state Jgeneratorlvoltage and frequency shall be 4160

  • 420 volts and 60 * .

Hz%itninAU seenndWer the starMignau m O,

e. At least once per 10 years or after any modifications which could affect EDG
interdependence by startingA EDGs simultaneously, during shutdown, and verifying that both EDGsecceleraie to at ienstwm romin less than or equal to 10 ._

seCond *

  • 9 "# * # W"" I N' l N N *v.#l+s8'S^*I#

29&o w4 s Aemusu: M ##A'" 1 o " " WA#8 % or orva H o C 4 8 H r. ]1

f. At least once per 24 months during any mode of operation, by subjecting each EDG o to a preventive maintenance inspection in accordance with maintenance procedures appropriate for diesels used for this class of standby service.

This test shall be conducted in accordance with the manufseturer's. recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading recommendations.

      • This band is meant as guidance to avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring of the manufacturer or momentary variations due to changing bus loads shall not invalidate the test.

NORTH ANNA - UNIT 1 3/4 8-3c Amendment No. 33,145, IS4, 214

..--. . . . ~- - _ ~ . . . . - - _ . _ . . . . - - . - . - - . - . .

Unit 2 North Anna Power Staton 9 .

l' .

, 08-26-98 ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS 4.8.1.1.1 Each of the above required physically independent circuits between the offsite transmission network and the onsite Class IE distribution system shall be:

a. Determined OPERABLE at least once per 7 days by verifying correct breaker alignment indicating power availability,
b. Demonstrated OPERABLE at least once per 18 months during shutdown by manually transferring the onsite Class IE power supply from the normal circuit to the alternate circuit.

4.8.1.1.2 Each emergency diesel generator (EDG) shall be demonstrated OPERABLE:

l-

a. In accordance with the frequency specified in Table 4.8.2 on a STAGGERED TEST BASIS by:
1. Verifying the fuel level in the day tank.

I

2. Verifying the fuel level in the fuel storage tank.
3. Verifying the fuel transfer pump can be started and transfers fuel from the storage system to the day tank. g
4. Verifying the EDG can start ** and gradually ccelerate toMfMfUiiBIii GitED l

' **g9re U90ptomumn genermotivoltage and frequency 160i420 volts and 60i Hz. Subsequently, verifying the generator is synchronized, gradually 0#

loaded ** to an indicated 2500-2600 kw*** and operates for at least 60 minutes.

5. Verifying the.EDG is aligned to provide standby power to the associated r

emergency busses.

b. At least once per 92 days by verifying that a sample of diesel fuel from the fuel storage tank obtained as a DRAIN sample in accordance with ASTM-D270-65, is within the acceptable limits specified in Table 1 of ASTM D97574 when checked 0e f . for viscosity, water and sediment. N M I *e N Y1 N9 S $,ETsT 6 l n w w A rt w or m .tts v s. s w e.,
c. ' I - At least once per 184 days, the EDG shall bfe tarted **@ianceleratea to arlesso l -

! l (spfpTnTin shall be 4160i420 less than volts or equal and 60i to 10 Hz(within secondst IMeconemer me The generatorpol starwignal) I fra .

t  ;

O, y This test shall be conducted in accordanc'e with the manufacturer's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading recommendations. ,

  • This band is meant as guidance to avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring of the manufacturer or momentary variations due to changing bus loads shall not invalidate the test. .

NORTH ANNA - UNIT 2 3/4 8-3 Amendment No. 48,195

08-26-98 ELECTRICAL < POWER SYSTEMS SURVEILLANCE REQUIREMENTS 4.8.1.1.2 (Continued)

The EDG shall be manually synchronized to its appropriate emergency bus, l gradually loaded?* to a6 indicated 2500 to 2600 kw***, and operated for at least 60 minutes. The EDG shall be started for this test by using one of the following l signals on a rotating test basis:

1 a) Simulated loss of offsite power by itself. -

b) Simulated loss of offsite power in conjunction with an ESF actuation test signal.

c) An ESF actuation test signal by itself.

This test, ifit is performed so it coincides with the testing required by Surveillance Requirement 4.8.1.1.2.a.4, may also serve to concurrently meet those requirements as well. l

d. At least once per 18 months during shutdown by: g yf*Jf" e+mna yt; {cm mslaa, ff %e >g
1. Verifying @ on rejection of a load of reater than or equal to 610 kwJthe l voltage and frequency areinarntjpard withJi160 i 420 volts and 60 Hz. o.r m
2. Verifying that the load sequencing timers are OPERABLE with times l within the tolerances shown in Table 4.8-1.
3. Simulating a loss of offsite power by itself, and: l a) Verifying de-energization of the emergency busses and load shedding from the emergency busses.

b) Verifying the EDG starts ** on the auto-start signal, caergizes the l emergency busses wig jermanently connected loads within 10 seconds,-

energizes the auto-connected shutdown loads through the sequencing timers and operates for greater than or equal to 5 minutes while its generator is loaded with the shutdown loads. After energization of these loads, the steady state voltage and frequency shall be maintained at 4160i420 volts and 60i Hz.

v. 5 M This test shall be conducted in accordance with the manufacturer's recomthendations regarding engine prelube and warmup procedures, and as applicable regarding loading recommendations.
      • This band is meant as gtiidance to avoid routine overloading of the engine. Loads,in excess of this band for'special testing under direct monitoring of the manufacturer or momentary variations due to changing bus loads shall not invalidate the test.

NORTH ANNA - UNIT 2 3/4 8-4 Amendment No. 70,165,195

08-26-98 ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS 4.8.1.1.2 (Continued) l d

  • * @ Verifying that on an ESF actuation test signal (without loss of offsite power) he EDG starts ** on the auto-start signal andonerates on standby for orenter -

/6 ds're,i an or equal to 5 minuteg ""****'*N ysa m , %np f*'**"Ywk " <<nt 4 WHw% ur&'l* *2 s ere4 imulating a loss of offsite power in conjunction with an ESF actuation test hy signal, and a) Verifying de-energization of the emergency busses and load shedding from the emergency busses.

b) Verifying the EDG starts ** on the auto-start signal, energizes the l )

emergency busses with permanently connected loads within 10 seconds,  ;

energizes the auto-connected emergency (accident) loads through the l sequencing timers and operates for greater than or equal to 5 minutes and maintains the steady state voltage and frequency at 4160i420 volts and 60i .

c) Verifying that a G trips, except engine overspeed, generator l differential and breaker overcurrent are automatically bypassed upon I loss of voltage on the emergency bus and/or a safety injection actuation signal.

6. Verifying the EDG 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 EDG shall be loaded to an indicated target value of 2950 kw (between 2900-3000 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 EDG shall be loaded to an indicated 2500-2600 kw***.
7. Verifying that the auto-connected loads to each EDG do not exceed the 2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> rating of 3000 kw.
8. Verifying the EDG's capability to:

a) Synchronize with the offsite power source while the EDG is loaded with its emergency loads upon a simulated restoration of offsite power, b) Transfer its loads to the offsite power source, and c) Proceed through its shutdown sequence.

    • This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading recommendations.
      • This band is meant as gtIidance to avoid routine overloading of the engine. Loadsiin excess of this band for r.pecial testing under direct monitoring of the manufacturer or momentary

( variations due to changing bus loads shall not invalidate the test.

NORTH ANNA - UNIT 2 3/4 8-5 Amendment No. 42,43, IS,195

. 08-26-98 ELECTRICAL POWER SYSTEMS 1

r SURVEILL.ANCE REQUIREMENTS l

l 4.8.1.1.2 (Continued) l 9. Verifying that the following EDG lockout features prevent EDG starting l only when required:

l a) Remote Local Selection Switch b) Emergency Stop Switch l 10. Verifying the EDG's hot restart capability t'y: h a) Operating the EDG** loaded to an indicated 2500 to 2600 kw"* for s$i$r*[

2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or until operating temperatures have stabilized, and ld.,!! '4 b) Within 5 minutes of shutdown verify the EDG can be started ** @ ,q <N,

[ Geeler2#d en at let uno wrrmin less than or e Grea4* +r<te>generatchvoltage and frequency shall be 41601420 volts and 60 i Hz Githin 10.(rcnnas nftfre start 1snnu m o,g

e. At least once per 10 years or after any modifications which could affect EDG interdependence by startino** hath EDGs simultar.cously, during shutdown, and verifying that both EDGs tem at ieawvuo rormin less thnn or eaual to 10

'6" "# "^

second *c N9,,"q *g" "3g,,o ,, q 9 ,,'* ", *n5*

s'"va, af,9,'"g*a*,*u a , *,,,,q, sy .gg

f. At least once per 24 months during any mode of operation, by subjecting each EDG to a preventive maintenance inspection in accordance with maintenance procedures appropriate for diesels used for this class of standby service.

4.8.1.1.3 Each emergency diesel generator 125-volt battery bank and charger shall be demonstrated OPERABLE:

a. At least once per 7 days by verifying that:
1. The parameters in Table 4.8-3 meet Category A limits and
2. The total battery terminal voltage is 2129 volts on a float charge.
    • This test shall be conducted in accordance with the manufacturer's recommendations l' regarding engine prelube and warmup procedures, and as applicable regarding loading l recommendations.

l

  • This band is meant as guidance to avoid routine overloading of the engine. Loads in excess i of this band for specia.1 testing under direct monitoring of the manufacturer or momentary variations due to changing bus loads shall not invalidate the test.

NORTH ANNA - UNIT 2 3/48-6 Amendment No. 4S, S4,165,195

l, . .

e i

Attachment 2 Proposed Technical Specifications Changes l

i i

l A

1

~

North Anna Power Station Units 1 and 2

Virginia Electric and Power Company
Attachment 2 I-i l

l I

t

1

. I i

I i

I 1

1 I

i 1

i Unit 1 North Anna Power Station 1

l L ELECTRICAL POWER SYSTEMS l i

( SURVEILLANCE REQUIREMENTS l

)

l 4.8.1.1.1 Each of the above required physically independent circuits between the offsite transmission network and the onsite Class IE distribution system shall be:

l l a. Determined OPERABLE at least once per 7 days by verifying correct breaker alignment indicating power availability.

b. Demonstrated OPERABLE at least once per 18 months during shutdown by L

manually transferring the onsite Class IE power supply from the normal circuit to l

the alternate circuit.

4.8.1.1.2 Each emergency diesel generator (EDG) shall be demonstrated OPERABLE: 1

a. In accordance with the frequency specified in Table 4.8.2 on a STAGGERED TEST BASIS by:_
l. Verifying the fuel level in the day tank.
2. Verifying the fuel level in the fuel storage tank.
3. Verifying the fuel transfer pump can be started and transfers fuel from the storage system to the day tank. l
4. Verifying the EDG can start ** and gradually accelerate to a steady state voltage and frequency of 4160i420 volts and 60i0.5 Hz. Subsequently, verifying the generator is synchronized, gradually loaded ** to an ind;cated 2500-2600 kw*** and operates for at least 60 minutes.
5. Verifying the EDG is aligned to provide standby power to the associated emergency busses,
b. At least once per 92 days by verifying that a sample of diesel fuel from the fuel storage tank is within the acceptable limits specified in Table 1 of ASTM D975-74 when checked for viscosity, water and sediment.
    • This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading

. recommendations.-

      • This band is meant as guidance t( avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring of the manufacturer or momentary variations due to changing bus loads shall not invalidate the test.

l NORTH ANNA - UNIT 1 3/4 8-3 Amendment No. 83-M4, l

l

ELECTRICAL POWER SYSTEMS  !

t l SURVEILLANCE REQUIREMENTS 4.8.1.1.2 (Continued)

L

c. At least once per 184 days, the EDG shall be started ** in less than or equal to 10 seconds after the start signal and achieve voltage greater than or equal to 3960 volts

- and frequency greater than or equal to 59.5 Hz. The generator steady state voltage I - and frequency shall be 4160i420 volts and 60 0.5 Hz. The EDG shall be manually synchronized to its appropriate emergency bus, gradually loaded ** to an  ;

' indicated 2500 to 2600 kw***, and operated for at least 60 minutes. The EDG shall ,

be started for this test by using one of the following signals'on a rotating test basis:

a) . Simulated loss of offsite power by itself.

i b) Simulated loss of offsite power in conjunction with an ESF actuation test signal.

c) An ESF actuation test signal by itself.

This test,ifit is perfonned so it coincides with the testing required by Surveillance i Requirement 4.8.1,1.2.a.4, may also serve to concurrently meet those requirements as well.

d. At least once per 18 months during shutdown by:

.l. Verifying, on rejection of a load of greater than or equal to 610 kw, the frequency remains less than or equal to 66 Hz, and within 3 seconds, the voltage and frequency are 4160 i 420 volts and 60 0.5 Hz.

2. Verifying that the load sequencing timers are OPERABLE with times within the tolerances shown in Table 4.8-1.

r i-

    • - This test shall be conducted in accordance with the manufacturer's recommendations l i - .

L' regarding engine prelube and wamlup procedures, and as applicable regarding loading recommendations.

L *** ' This band is meant as guidance to avoid routine overloading of the engine. Loads in excess  ;

L of this band for special testing under direct monitoring of the manufacturer or momentary i variations due to changing bus loads shall not invalidate the test.

v l  !

NORTH ANNA - UNIT 1 3/4 8-3a Amendment No. 83,184,214, ,

t

.: .. j 1

l ELECTRICAL POWER SYSTEMS i i

SURVEILLANCE REQUIREMENTS 4.8.1.1.2 (Continued)

3. Simulating a loss of offsite power by itself, and:
a. Verifying de-energization of the emergency busses and load shedding from the emergency busses.
b. Verifying the EDG starts ** on the auto-start signal, energizes the emergency busses with permanently connected loads within 10 seconds, energizes the auto-connected shutdown loads through the sequencing timers and operates for greater than or equal to 5 minutes while its generator is loaded with the shutdown loads. After energization of these loads, the steady state voltage and frequency shall be maintained at 4160 420 volts and 60i o.5 Hz. l l
4. Verifying that on an ESF actuation test signal (without loss of offsite power) the EDG starts ** on the auto-start signal and achieves voltage greater than or equal to 3960 volts and frequency greater than or equal to 59.5 Hz within 10 seconds and operates on standby for greater than or .: qual to 5 minutes with a steady state voltage of 4160i420 volts and a steady state frequency l of 60i 0.5 Hz. ,
5. Simulating a loss of offsite power in conjunction with an ESF actuation test signal, and
a. Verifying de-energization of the emergency busses and load shedding from the emergency busses.
b. - Verifying the EDG starts ** on the auto-start signal, energizes the emergency busses with permanently connected loads within 10 seconds, energizes the auto-connected emergency (accident) loads through the sequencing timers and operates for greater than or equal to 5 minutes and maintains the steady state voltage and fre-quency at 4160i420 volts and 60 i 0.5 Hz. l
c. Verifying that all EDG trips, except engine overspeed, generator i differential and breaker overcurrent are automatically bypassed upon i loss of voltage on the emergency bus and/or a safety injection actuation signal. j
6. Verifying the EDG 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 EDG shall be loaded to an indicated target value of 2950 kw (between 2900-3000 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, f the EDG shall be loaded to an indicated 2500-2600 kw***. I 1

i

    • This test shall be conducted in accordance with the manufacturer's recommendations  !

regarding engine prelube and warmup procedures, and as applicable regarding loading  !

recommendations.

      • This band is meant as guidance to avoid routine overloading of the engine. Loads in excess  !

of this band for special testing under direct monitoring of the manufacturer or momentary j variations due to changing bus loads shall not invalidate the test.  :

g NORTH ANNA - UNIT 1 3/4 8-3b Amendment No. 83,214,  ;

i i

i

!' ELECTRICAL POWER SYSTEMS n

l SURVEILLANCE REQUIREMENTS h

4.8.1.1.2 (Continued) l 7. Verifying that the auto-connected loads to each EDG do not exceed the

[ - 2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> rating of 3000 kw.

l

8. Verifying the EDG's capability to:

I a) Synchronize with the offsite power source while the EDG is loaded with  !

' its emergency loads upon a simulated restoration of offsite power, b) Transfer its loads to the offsite power source, and c) Proceed through its shutdown sequence.

' l

9. Verifying that the following EDG lockout features prevent EDG starting -)

only when required: I i

a) Remote Local Selection Switch i b) Emergency Stop Switch l

10. Verifying the EDG's hot restart capability by-a) Operating the EDG** loaded to an indicated 2500 to 2600 kw*** for 1 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or until operating temperatures have stabilized, and l l

b) Within 5 minutes of shutdown verify the EDG can be started ** in less than or equal to 10 seconds of the start signal with voltage greater than or equal to 3960 volts and frequency greater than or equal to 59.5 Hz.

The generator steady state voltage and frequency shall be 4160 i 420 volts and 60 0.5 Hz.

e. At least once per 10 years or after any modifications which could affect EDG interdependence by starting **.both EDGs simultaneously, during shutdown, and verifying that both EDGs start in less than or equal to 10 seconds of the start signal and achieve a voltage of greater than or equal to 3960 volts and a frequency of greater than or equal to 59.5 Hz.
f. At least once per 24 months during any mode of operation, by subjecting each EDG to a preventive maintenance inspection in accordance with maintenance procedures appropriate for diesels used for this class of standby service.
    • This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading recommendations.
      • This band is meant as guidance to avoid routine overloading of the engine. Loads in excess
of this band for special testing under direct monitoring of the manufacturer or momentary j variations due to changing bus loads shall not invalidate the test.

' NORTH ANNA'- UNIT 1- 3/4 8-3c Amendment No. 83,145, IS4,

-244, L

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i Unit 2 North Anna Power Station 1

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS ,

( 4.8.1.1.1 Each of the above required physically independent circuits between the offsite transmission network and the onsite Class IE distribution system shall be:

a; Determined OPERABLE at least once per 7 days by verifying correct breaker alignment indicating power availability.

b. . Demonstrated OPERABLE at least once per 18 months during shutdown by l manually transferring the onsite Class 1E power supply from the normal circuit to the alternate circuit.

4.8 '.l.2 Each emergency diesel generator (EDG) shall be demonstrated OPERABLE: i

a. In accordance with the frequency specified in Table 4.8.2 on a STAGGERED TEST BASIS by:
1. Verifying the fuel level in the day tank.
2. Verifying the fuel level in the fuel storage tank.
3. Verifying the fuel transfer pump can be started and transfers fuel from the  !

storage system to the day tank.

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4. Verifying the EDG can start ** and gradually accelerate to a steady state voltage and frequency of 4160 420 volts and 60i 0.5 Hz. Subsequently, t verifying the generator is synchronized, gradually loaded *
  • to an indicated 2500-2600 kw*** and operates for at least 60 minutes.
5. Verifying the EDG is aligned to provide standby power to the associated emergency busses.
b. At least once per 92 days by verifying that a sample of diesel fuel from the fuel storage tank obtained as a DRAIN sample in accordance with ASTM-D270-65, is within the acceptable limits specified in Table 1 of ASTM D975-74 when checked -

for viscosity, water and sediment.

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c. At least once per 184 days, the EDG shall be started ** in less than or equal to 10

- seconds after the start signal and achieve voltage greater than or equal to 3960 volts j and frequency greater than or equal to 59.5 Hz. The generator steady state voltage and frequency shall be 4160 i 420 volts and 60 0.5 Hz. .

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    • This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading recommendations.
      • This band is meant as guidance to avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring of the manufacturer or momentary variations due to changing bus loads shall not invalMate the test.

NORTH ANNA - UNIT 2 3/4 8-3 Amendment No. 48,195, i

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ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS 4.8.1.1.2 (Continued)

The EDG shall be manually synchronized to its appropriate emergency bus, gradually loaded ** to an indicated 2500 to 2600 kw***, and operated for at least 60 minutes. The EDG shall be started for this test by using one of the following signals on a rotating test basis:

a) Simulated loss of offsite power by itself.

b) Simulated loss of offsite power in conjunction with an ESF actuation test signal.

c) An ESF actuation test signal by itself.

This test,ifit is performed so it coincides with the testing required by Surveillance Requirement 4.8.1.1.2.a.4, may also serve to concurrently meet those requirements ,

as well. l

d. At least once per 18 months during shutdown by:
1. Verifying, on rejection of a load of greater than or equal to 610 kw, the frequency remains less than or equal to 66 Hz, and within 3 seconds, the i I

voltage and frequency are 4160 i 420 volts and 60 i 0.5 Hz.

2. Verifying that the load sequencing timers are OPERABLE with times within the tolerances shown in Table 4.8-1.
3. Simulating a loss of offsite power by itself, and: I a) Verifying de-energization of the emergency busses and load shedding from the emergency busses. -l b) Verifying the EDG starts ** on the auto-start signal, energizes the emergency busses with permanently connected loads within 10 seconds, energizes the auto-connected shutdown loads through the sequencing timers and operates for greater than or equal to 5 minutes while its generator is loaded with the shutdown loads. After energization of these loads, the steady state voltage and frequency shall be maintained at 4160 420 volts and 60 t 0.5 Hz. l

.** This test shall be conducted in accor>ce with the manufacturer's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading recommendations.

      • This band is meant as guidance to avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring of the manufacturer or momentary variations due to changing bus loads shall not invalidate the test.

NORTH ANNA - UNIT 2 3/48-4 Amendment No. 70,165,195,

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. ELECTRICAL POWER SYSTEMS

~ SURVEILLANCE REQUIREMENTS 4.8.1.1.2 (Continued)

4. Verifying that on an ESF actuation test signal (without loss of offsite power) the EDG starts ** on the auto-start signal and achieves voltage greater than i or equal to 3960 volts and frequency greater than or equal to 59.5 Hz within 10 seconds and operates on standby for greater than or equal to 5 minutes i

with a steady state voltage of 4160 i420 volts and a steady state frequency of 60 i 0.5 Hz.

5. Simulating a loss of offsite power in conjunction with an ESF actuation test
signal, and 4

i a) Verifying de-energization of the emergency busses and load shedding L from the emergency busses.

b) Verifying the EDG starts ** on the auto-start signal, energizes the i

. emergency busses with permanently connected loads within 10 seconds, energizes the auto-connected emergency (accident) loads through the

sequencing timers and operates for greater than or equal to 5 minutes i i and maintains the steady state voltage and frequency at 4160i420 volts

. and 60 0.5 Hz. l

{ c) Verifying that all EDG trips, except engine overspeed, generator C

differential and breaker overcurrent are automatically bypassed upon loss of voltage on the emergency bus and/or a safety injection actuation signal.

6. Verifying the EDG 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 tae 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 EDG shall be loaded to an indicate:I target value of 2950 kw j - (between 2900-3000 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 EDG shall be loaded to an indicated 2500-2600 kw***.
7. Verifying that the auto-connected loads to each EDG do not exceed the 2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> rating of 3000 kw. j
8. Verifying the EDG's capability to:

a) Synchronize with the offsite power source while the EDG is loaded with its emergency loads upon a simulated restoration of offsite power, b) Transfer its loads to the offsite power source, and e c) Proceed through its shutdown sequence.

    • - This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading recommendations.
      • This band is meant as guidance to avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring of the manufacturer or momentary
variations due to changing bus loads shall not invalidate the test.

Amendment No. 42,48,155,195,

. NORTH ANNA - UNIT 2 3/48-5 i.

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y ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS .

4.8.1.1.2 (Continued)

9. Verifying that the following EDG lockout features prevent EDG starting only when required:

a) Remote Local Selection Switch b) Emergency Stop Switch

10. Verifying the EDG's hot restart capability by; a) Operating the EDG** loaded to en indicated 2500 to 2600 kw*** for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or until operating temperatures have stabilized, and b) Within 5 minutes of shutdown verify the EDG can be started ** in less than or equal to 10 seconds of the start signal with voltage greater than or equal to 3960 volts and frequency greater than or equal to 59.5 Hz.

The generator steady state voltage and frequency shall be 4160

  • 420 volts and 60 t 0.5 Hz.
e. At least once per 10 years or after any modific:ttions which could affect EUG  !

interdependence by starting ** both EDGs simultaneously, during shutdown, and verifying that both EDGs start in less than or equal to 10 seconds of the start signal and achieve a voltage of greater than or equal to 3960 volts and a frequency of greater than or equal to 59.5 Hz.

f. At least once per 24 months during any mode of operation, by subjecting each EDG '

to a preventive maintenance inspection in accordance with maintenance procedures appropriate for diesels used for this class of standby service.

4.8.1.1.3 Each emergency diesel generator 125-volt battery bank and charger shall be demonstrated OPERABLE:

a. At least once per 7 days by verifying that:
1. The parameters in Table 4.8-3 meet Category A limits and
2. The total battery terminal voltage is 2129 volts on a float charge.
    • This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading recommendations.
      • This band is meant as guidance to avoid routine overloading of the engine. Loads in excess L of this band for special testing under direct monitoring of the manufacturer or momentary variations due to changing bus loads shall not invalidate the test.

J NORTH ANNA - UNIT 2 3/4 8-6 Amendment No. 48, S4,165,195,

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