Text

Proposed TS 3.9-1 & 3.9-4a Re Emergency Diesel Generators
	ML20090E346
Person / Time
Site:	Hatch
Issue date:	03/05/1992
From:	; GEORGIA POWER CO.
To:	;
Shared Package
ML20090E333	List: HL-2075, Forwards Response to NRC 901218 Request for Addl Info Re 900110 Application for Amends to Licenses DPR-57 & NPF-5, Changing TS to Revise Testing Requirements on Emergency Diesel Generators; ML20090E346;
References
	NUDOCS 9203090381
	Download: ML20090E346 (11)
	v • d • e

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S ENCLOSURE 2 PLANT HATCH - UNITS 1,2 NRC DOCKETS 50-321, 50-366 OPERATING LICENSES DPR-57, NPF-5 CHANGE TO TECHNICAL SPECIFICATIONS REVISION REQUEST EMERGENCY DIESEL GENERATORS P_ AGE CHANGE INSTRUCTIONS Vnit 1 Removed Paae Inserted Paae 3.9-1 3.9-1 3,9-4a 3.9-4a Mail _2 Removed Paae Inserted Paae 3/4 8-1 3/4 8-1 3/4 8-5 3/4 8-5 3/4 8-9 3/4 8-9 003011 HL--2075 -

E2-1 9203090381 92030S PDR ADOCK 05000321 P

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LIMITING WolTIONS FOR OPIRATION SURVilliANCE RigQlPEMUUS y

3.9.

_ AlfX1tlARY ELECTRICAL SYSTEMS

o.

&XILIARY ELECTRICAL SYSTim Acolicability

&glicability l

The limiting Conditions for The Surveillance Requiremnts apply Operation apply to the auxiliary to the periodic testing require-electrical pcwr systems.

ments of the auxiliary electrical power systems.

Ob_1ective Qlliectivt Theobjectiveofthelimiting The objective of the Surveillance Corditions for Operation is to Requirenents is to verify the assure an adequate supply of operability of the auxiliary electrical power for operation of electrical systems, those systems required for safety.

Specificattom

$oecifications A.

E22giremntsForRutur A.

huxiliary Elegittal System ilAC11!D

[2411EEC1 The reactor shall not be made Tests shall be performed at sched-critical from the Cold Shutdown uled intervals as follows to de-Condition unless all of the fol-tect deterioration of equipnent lowing conditions are satisfied; and to demonstrate that auxiliary electrical systems equipment and conponents are operable.

1.

Offsite Pee r Sources 1.

Offsite Powr Soc _es l

At least two 230-kV offsite trans-a.

Verify correct breaker l

mission lines shall be available alignments and indicated and each shall be capable of powr availability at least supplying auxiliary power to the once per 7 days.

emergency 4160 volt buses (IE, IF,andIG)andeachshallbe b.

Dernnnstrate manual and capable of supplying power to automatic transfer of both startup auxiliary trans-unit power supply from forwrs (1C and ID).

the nomal circuit to alternate circuit for each of the required circuits from offsite at least once per 18 months.

2.

Standby AC Powar Sueolv (Diesel 2.

Standby AC Poe r Sucolv (Diesel Generators lA. 18. and IC)

Generators IA. 18. and IC)

Threedieselgenerators(IA,1B The following periodic tests and and IC) shall be operable and surveillance of the standby AC capable of supplying power to power supply (Diesel Generators the energency 4160-volt buses IA,18, and IC) shall be per-(if,if,andIG).

fomed:

For each diesel generator to be operable and capable of sup-plying power, the following conditions must be met:

l; L

l MTCH - UNIT 1 3.9-1 ProposedTS/0312q/296-147

LIMITING C(10lil(NS FOR Or&A110N SUWEILLNCE PE001RENEVIS 3.9.A.7. Loaic Systems (Continued) 4.9.A.7. Loaic Svetems (Continued) b.2.

Within 5 minutes after conplet-ing the 24-hour load test speci-fled in Surveillance Reautrement 4.9.A.2.a.6, repeat Surveillance Requirement 4.9.A.7.b.) with a simulated loss of offsite power start signal and run the diesel for at least 5 minutes while loaded with shutdown loads.*

This test is to be perfomed every 18 months.

3.

Once per nonth, the relays which initiate energization of the emergency buses by the Diesel Generators when voltage is lost on the emergency buses and startup transfomer IC, will be functionally tested,

c. The comon acci6ent signal c.l.

Once every 18 months during logic systtm, and undervolt-shutdown, each diesel generator age relays and supporting shall be demonstrated operable system are operable.

by sinulating a loss of offsite power in conjunction with an accident test signal and verifying: de-energiration of the emergency buses and load shedding frcm the emergency buses, and the diesel starts on the auto-start signal with permanently connected loads in s 12 seconds, energizes the auto-connected shutd wn (emergency)loadsthroughthe load sequencer, operates for 2 5 minutes while its generator is loaded with the emergency loads, and achieves and maintains a

.teady-state voltage of 4160 420 volts and a steady-state frequency of 60 1.2 Hz, 2.

The undervoltage relays for the start buses shall be calibrated annually for trip and reset voltages and the treasurements recorded.

3.

Verify, once per 18 months during shutdown, that all diesel generator trips, except engine overspeed, low lube oil pressure, and generator differential, are automatically bypassed upon loss of voltage on the emergency bus concurrent with an ECCS actuation signal.

1f the diesel generator fails this test, a retest may be perfomed after the diesel generator has been operated for 2 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months at 2 2565 kW.

HATCH - UN!i 1 3.9-4a K:\\wp\\techsp\\h\\3-9u1296. pro \\296-88 y

ELECTRICAL POWER SYSTEMS SURVEILLANCE REOUIREMENTS (Continued) 9.

Verifying that the diesel generator operates for at least 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

During the first 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months of t ais test, the diesel generator shall be loaded to 1 3000 kW* and during the remaining 22 hours2.546296e-4 days 0.00611 hours 3.637566e-5 weeks 8.371e-6 months of this test, the diesel generator shall be loaded to 2775-2825 kW*.**

Within 5 minutes after completing:

this 24-hour test, repeat Surveillance Requirement 4.8.1.1.2.d.5.b.***

10. Verifying that the auto-connected loads to each diesel generator do not exceed the 2000-hour rating of 3100 kW.

l 1

11. Verifying the diesel generator's capability to:

a)

Synchronize with the offsite power source while the generator is loaded with its emergency loads upon e sinulated restoration of offsite power, b)

Transfer its loads to the offsite power source, and c)

Proceed through its shutdown set;uence.

12. Verifying that with the diesel generator operating in a test mode (connected to its bus), a simulated LOCA actuation signal overrides the test mode by:

(1) returning the diesel generator to standby operation and (2) auto-matically energizing the emergency loads with offsite power.

13. Verifying that the fuel transfer pump transfers fuel from each associated fuel storage tank to the day tank of each l

diesel via the installed cross connection lines.

e.

At'least once per 10 years or after any modifications which could affect diesel generator interdependence by starting both diesel generators simultaneously, during shutdown, and verifying that both diesel generators accelerate to synchronous speed in s 12-seconds.

Momentary variations outside this band shall not invalidate the test.

- For the IB diesel generator, a single 24-hour load test every 18 months will satisfy the requirements of Unit 1. Specification 4.9. A.2.a.6 and Unit 2 Specification 4.8.1.1.2.d.9.

- - If the diesel generator fails this test, a retest may be performed after the diesel generator has been operated for 2 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months at 2 2565 kW.

HATCH - UNIT 2 3/4 8-5 Proposed TS/0310q/292-83

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3/4.8 ELECTRICAL POWER SYSTEMS-

)]1,L1 A.C. SOURCES A.C. SOURCES -'OPERATINQn i

~ LIMITING CONDITION FOR OPERATION 3.8.1.1 As a mirimum, the following A.C. electrical power sources shall be OTERABLE:

-a.

Two physically-independent circuits between the offsite trans-mission network and the onsite Class 1E distribution system, and-b.

-inree separate and independent diesel generators, each with:

1.

A separate day tank containing a minimura of 900 gallons of: fuel, 2.-

A separate-fuel st6 rage tank containing a minimum of 33,000 gallons of fuel,-and l

3.

A separate fuel transfer pump.

APPLICABILITYr -CONDITIONS 1, 2,-and 3.

-ACTION:

-a.-

With one offsite circuit of the above required A.C. electrical power, sources inoperable, demonstrate the OPERABILITY of the remaining offsite A.C. source by' performing Surveillance Require-s ment 4.8.1.1.1.a within 1. hour and et ifast once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 1

thereafter,land performing Surveillance Requirement. 4.8.1 l.2.a.4

within.24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . Restore at.least'two.offsite' circuits to 0?ERABLE status'within 72 hcurs or be in at least 1107 3HUTOOWN

~

Lwithin the next 12 hour1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months s-and in COLD SHUTDOWN'within.the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .-

m

b.

, With:one diesei generator of:the above required A.C. electrical

power sources ' inoperable,-demonstrate the OPERABILITY of the

. remaining A.C.- sources by perfonning Surveillance Requirement 4.8.1;1.1.a-within 1-hour and-Lt least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months there-after,;and by performing Surveillance Requirement -4.8.1.1.2.a.4 e

within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ~. Restore.at~1 east three diesel' generators to t

p' I

HATCH - UNIT 2

-3/4 8-1 Proposed TS/0310g/292-83

=

4 ELEC181 CAL POPER SYSTEMS e&JMRCES - SHUTDOWN-

- LIMITING-CONDIll0il FOR OPERATION 3~.8.1.2 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

a.

One circuit between the offsite transmission network and the onsite Class IE distribution system, and b.

One diesel-generator with:

1.

A day tank containing a minimum of 900 gallons of fuel, 2.

A fuel storage tank containing a minimum of 33,000 gallons l

of fuel,.and 3.

A fuel transfer pump.

8EP[lCAHJLITY:. CONDITIONS 4 and 5.

ALT _IM:-

T With less -than'the above required A.C. electrical power sources OPERABLE, suspend all operations involving CORE ALTERATIONS, irradiated fuel

- hanaling, positive reactivity changes or operations that have the

- potential of draining the reactor vessel.

Tne provisions of Specifica-tion 3.0.3 are not applicable.

SMBVElltANCE RE0VIREMENIS 4

4.8.1.2 At:least the above required A.C. electrical power sources shall be demonstrated OPERABLE per Surveillance Requirements 4.8.1.1.1,.

- 4.8.1.1.2, except for the requirement of 4.8.1.1.2.a.5, 4.8.1.1.3 and 4.8.1.1.4 m

HATCH - UN112 3/4 8-9 Proposed 1S/03104/?92-0

LIMlil>G COND1110NS FOR OPER A110N SURv[lLLANCE REQUIREMENIS 3.5.

AURILIARY ELECTplCAL SYSTEMS 4.9.

AuxlLIARY ELECTRICAL SYSTEMS Apolicability Lylicability The Limiting Conditions for The Surveillance Requirements apply Operation apply to the ausiliary to the periodic testing require-electrical power systems, ments of the auxiliary electrical power systems.

Objective Objective The objective of the Limiting The objective of the surveillance Conditions for Operation is to Requirements is to verify the assure an adequate supply of operability of the auxiliary electrical power for operation of electrical systems, thtse systems required for safety.

hitillifilgn_t hitif1eations A.

Pecuiremenis for Pt311gr A.

Aur liarv Electrical Systems Startup lau-pment The reastor sha11 not be made Tests shall be performed at sched-critical from the Cold Shutdown uled intervals as follows to de-Conditien unless all of the fol-tett deterioration of equipment lowing conditions are satitfied; and to demonstrate that auxiliary electrical systems equipment and components are operable.

l 1.

Of f sit? Power Scurces 1.

Offsite power Sources At least two 230-kV offsite trans-e.

Verify correct breaker l

ission lines shall be available alignments and indicated

,J each shall be capeble of power availab1Hty at least supplying auxiliary power to the once per 7 days, emergency 4160 volt buses (1E, 1F and 1G) and each shall be b.

Demonstrate manual and capable of supplying power to automatic transfer of both star.wp auxiliary trans-unit power supply from f ortsers (It and 10),

the norinal circuit to alternate circuit for each of the recuired circuits from offsite at least once per 18 months.

2.

Standbv Ar,, Power _h2 ply _19.Ltitl 2.

Standby AC Power Suoniv (Diesel generators 1A. 19, and it)

),enerators 1A. 18. and IC)

Three diesel generators (1 A, Ine following periodic tests and and IC) shall be operable

and h,,,

surveillance of the standby AC canable of supplying power to power supply (Diesel Generators

- the energency 4160-volt buses 1A, 18. anc it) shall be par-(it, 1r. and IG),

f urtned :

For each diesel generator to be operable and capable of sup-plying power, the following conditions must be met:

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---e Mow-9ee dv e44t ar t u p-e nd-4 a 4 M ow-t he-d i es el -* ni i n e-t o -be-beeredito l l ed P-mvw HATCH - UNIT I 3.9-1 Proposed TS/03120/296-147

- ~ _ -

LIMITIE CCe0ITIONS FOR OPERATION S' VEILLMCE PIOUIRE'M5 3.9.A//. LoaicSystems(Continued) 4.9.A.7. Loaic Systan (Continued) b.2.

Within 5 minutes after conplet-ing the 24-hour load test spect.

fled in Surv

/.li/'fA r / 4.' 91.2.a.6,3111ance Requirent N h Ourveillance Requirement 4.9.A.7.b.) with a simJiated loss of offsite power start signal and run the diesel for at least 5 minutes while loaded with shutdown loads.*

This test is to be perfonned every 18 sonths, 3.

Chce per sonth, the relays which initiate energization of the energency buses by the Diesel Generators when voltage is lost on the ernergency buses and startup transfonrer IC, will re functionally tested.

c. The corron accident signal c.).

Once every 18 sonths during logic system, and undervolt-shutdown, each diesel generator age relays and supporting shall be denonstrated operable system are operable, by simulating a loss of offsite power in conjunction with an accident test signal and verifying: de-energization of the emergency buses and loM shedding frta the emergency buses, and the diesel starts-on the auto-start signal with pennanently connected loads in s 12 seconds, energizes the auto-connected shutdown (emergency) loads through the load sequencer, operates for 2 5 minutes while its generator is loaded with the emergency loads, and achieves and maintains a steady-state voltage of 41601420 volts and a steady-state frequency of 60 i 1.2 Hz.

2.

The undervoltage relays for the start buses shall be calibrated annually for trip and reset voltages and the measurements recorded.

3.

Verify, once per 18 ponths during shutdcwn, that all diesel generator trips, except engine overspeed, low lube oil pressure, and generator differential, are automatically bypassed won loss of voltage on the emergency bus concurrent with an ECCS actuation signal.

~

1f tho diesal generator fails this test, a retest may be perforwed after the diesel generator has been operated for 2 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months at 2 2565 kW.

MATCH - UNIT 1 3.9-4a K:\\wp\\techsp\\h\\3-9ul2%. pro \\296-B8 m

3/4.8 E8ECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES A.C. SOURCES - OPERATING LIMITING CONDITION FOR OPERATION 3.8.1.1 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

a.

Two physically independent circuits between the offsite trans-mission network and the onsite Class lE distribution system, and p./.

b.

Three separate and independent diesel generators *, each with:

Er 1.

A separate day tank containing a minimum of 900 gallons of fuel, 2:[

2.

A separate fuel storage tank containing a minimum of 33,000 gallons of fuel, and l

3.

A separate fuel transfer pump.

APPLICABILITY: CONDITIONS 1, 2 and 3.

ACTION:

a.

With one offsite circuit of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining offsite A.C. source by performing Survelliance Require-ment 4.8.1.1.1.a within I hour and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter, and performing Surveillance Requirement 4.8.1.1.2.a.4 within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

Restore at least two offsite circuits to OPERABLE status withir. 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT SHUTOOWN within the ne t 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 24 hears,

b.. With one diesel generator of the above required A.C electrical power sources l' operable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.1.a within I hour and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months there-after, and by performing Surveillante Requiremer:t 4.8.1.1.2.a.4 within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

Restore at least three elesel generators to

A-d 'r es e l-g enera tor-may-be-4 nope r a bl e-formp-t o 4-hour -du r i ng-s urve H 4a nc e--

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--t e t t i ng-v i t hout-en t e r4 ng-t h e--A e tien snh H e-con t rot-H-t e k err-l ee a H y-to-".

hilos gradual-startup-and-to-eHo*-the-diesel-engine-to-bt--ba* red 4roMedb g ave s HATCH UNIT 2 3/4 8-1 Proposed 15/03104/292-83

i I

i ELECTRICAL POWER SYSTEMS Sj[RVE!LLANCE REQUIREMENTS (Continued)

=, _ _,,

9.

Verifying that the diesel generator operates for at least 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

During the first 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months of this test, the diesel generator shall be loaded to 1 3000 kH* and during the remaining 22 hours2.546296e-4 days 0.00611 hours 3.637566e-5 weeks 8.371e-6 months of this test, the diestl generator shall j

te loaded to 2775-2825 kH*. " Within 5 rrinutes af ter completing this 24-hour test,~ perform Surveillance 0.!quirement 4.8.1.1.2.d.5.***

4M W 10.

Verifying that the auto-connected loads to ce.ch diesel generator do not exceed the 2000-hour rating of 3100 kH.

l 1

11.

Verifying the diesel generator's capability tc; j

a) Synchronize with the offsfite poser source while '.-he i

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

12. Verifying that with the diesel generator operating in a test. mode (connected to its t,Js), a simulated LOCA actuation signa' overrides the test mode by:

(1) returning the diesel _ generator to standby operation and (2) auto-matically energizing the energency loads with offsite power.

13.

Verifying that the fuel transfer pump transfers fuel from each associated fuel storage tank to the cay tank of each l

diesel via the installed cross connection lines.

e.

At least once per 10 years or after any modifications which could affect diesel generator interdepenaence by starting both diesel generators simultaneously, during shutdown, and verifying that both diesel generators accelerate to syrichronous speed in i 12' seconds.

'Homentary variations outside this band chall not invalidate the test.

" For the IB diesel generator, a single 24-hour load test every 18 months will satisfy the requirements of Unit 1 Soecification 4.9.A.2.a.6 and Unit 2 Specification 4.8.1.1.2.d 9.

"If the diesel generator fails this test a retest may be performed af ter the diesel generator has been operated for 2 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months at 1 2565 kW.

H/.TCH - UNIT 2 3/4 8-S Proposed TS/0310q/292-83 m

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ELECTRICAL POWER'$YSTEMS

._(..

.I.C. SOURCES - SHUTDOWN o

. LIMITING CONDITION FOR OPERATION

~

3.8.1 2 As a minimum, the following A.C. electrical power sources shall-be OPERABLE:

One circuit between the offsite transmission netwo. -id the a.

(

onsite Class IE distribution system,'and b.

Oce diesel generator with:

i

- 1.

A day tank containing a minimum of 900 gallons of fuel, 2.

A fuel storage tank containing a minimum of 000 gallons of fuel, and 3.

A fuel transfer pump.

APPLICABILITY:

CON 02TIONS 4 and 5.

(

ACTION:

With less than the above required A.C. elsctrical power sources OPERABLE, suspend all operations-involving CORE ALTERATIONS, irradiated fuel handling. positive reactivity changes or operations that have ti9 potential of draining the reactor vessel.

The provisions cf Specifica-tion 3.0.3 are not applicable.

l l{

i l;

SURVEILLANCE REQU_IREMENTS

[-

' 4,8.1. 2. At least the above required A.C. electrical power sources shall be demonstrated OPERABLE per Surveillance Requirements 4.8.1.1,1, 4.8.1.1.2, except for the requirement of 4.8.1.1.2.a.5, 4.8.1.1.3 and l

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ML20090E346

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