ML20006D929

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Proposed Tech Specs,Revising Pretest Requirements for Div I & II Diesel Generator Surveillance Testing
ML20006D929
Person / Time
Site: River Bend Entergy icon.png
Issue date: 02/02/1990
From:
GULF STATES UTILITIES CO.
To:
Shared Package
ML20006D927 List:
References
NUDOCS 9002150274
Download: ML20006D929 (4)
v • d • e


Text

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ELECTRICAL POWER SYSTEMS .

SURVEILLANCE REQUIREMENTS (Continued)

3. By verifying within 31 days' of obtaining the sample that the I other properties specified in Table 1 of ASTM D975-81 are met  !

when tested in accordance with ASTM 0975-81, except that the I analysis for sulfur mey be performed in accordance with ASTM 01552-79 or ASTM D2622 82.  !

e. At least once every 31 days by obtaining a sample of fuel oil from ,

the storage tanks in accordance with ASTM D2276-78 and verifying .

l that total particulate contamination is less than 10 mg/ liter when  !

checked in accordance with ASTM D2276-78, Method A.

! j

f. At least once per 18 months #****, during shutdown, by: ,

Subjecting the diesel to an inspection in accordance with

1. 4 procedures prepared in conjunction with its manufacturer's recommendations for this class of standby service.

M erifying the diesel generator capability to reject a load of l l greater than or equal to 917.5 kw for diesel generator 1A, '

greater than or equal to 509.2 kw for diesel generator 18, and t greater than or equal to 1995 kw for diesel generator 10 while '

maintaining engine speed less than nominal plus 75% of the dif- ,

ference between nominal speed and the overspeed trip setpoint 'e or 15% above nomin'al,' whichever is-less. ,

i rifying the diesel generator capability to reject a load of l 3030-3130 kw"** for diesel generators 1A and 18 and 2500-2600 kw*** , ,

for diesel generator IC without tripping. Tne generator voltage '

shall not exceed 4784 volts'for diesel generator 1A and 18 and 5400 volts for diesel generator IC during and following the load  ;

rejection, w Simulating a loss of offsite power by itself, and: l 5

a) For divisions I and II:

1) Verifying deenergization of the emergency busses and load shedding from the emergency busses.
  1. For any st. art of a diesel, the diesel must be operated with a load in accordance with the manufacturer's recommendations. <
      • Momentary transients due to changing bus loads shall not invalidate the  !

test.

        • Except 4.8.1.1.2.f.1 to be performed every refueling outage, for diesel generators ,1A and 1B only.

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RIVER BEND - UNIT 1 3/4 8-6 OCT 071987 Amendment No. 5, 9 59002150274 900202  %

PDR_ADOCK 05000458 PDC R SDC ,

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ELECTRICAL POWER SYSTEMS 3 SURVEILLANCE REQUIREMENTS (Continued) l

- (' Verifying the diesel generator starts ** on the auto-start

2)  !

signal, energizes the emergency busses with permanently i connected loads within 10 seconds, energizes the auto-connected loads through the sequencing logic, and oper-  ;

ates for greater than or equal to 5 minutes while its  ;

generator is loaded with the loads. After energization, '

the steady-state voltage and frequency of the emergency i busses shall be maintained at 4160 1 420 volts and 60 l 1 1.2 Hz during this test. i b) For division !!!.:  !

1) Verifying de-energitation of the emergency bus. f

. . 2) Verifying the diesel generator starts ** on the auto-start l signal, energizes the emergency bus with the permanently  !

connected loads within 10 seconds, energizes the auto- l connected loads through the sequence logic, and oper- l ates for greater than or equal to 5 minutes while its i generator is loaded with the loads. Af ter energira-tion, the steady-state voltage and frequency of the  !

INSERT 1 emergency bus shall be maintained at 4160 1 420 volts  !

\ and 60 1 1.2 Hz during this test.  !

. rifying that, on an ECCS 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 ,

i '

5 minutes. For diesel generator 1A and 18, the generator volt-age and frequency shall be 4160 1 420 volts and 60

  • 1.2 Hz within 10 seconds after the auto-start signal. For diesel i generator IC, the generator voltage and frequency shall not exceed a maximum of 5400 volts and 66.75 Hz and shall be greater '

than 3740 volts and 58.8 Hz within 10 seconds and 4160 1 420 volts and 60 1 1.2 Hz within 13 seconds. The steady-state generator voltage and frequency shall be maintained within these limits '

during this test.

. mulating a loss of offsite power in conjunction with an ECCS actuation test signal and:

a) For divisions I and II: ~

1) Verifying deenergization of the emergency busses and load shedding from the emergency busses.

p **All diesel generator starts for the purpose of this surveillance test may be preceded by an engine prelube period. Further, all surveillance tests, with L the exception of once per 184 days, may also be preceded by warmup procedures and may also include gradual loading (> 150.sec) as recommended by the manu-facturer so that the mechanical stress and wear on the diesel engine is

(- minimized. ' ~ ~ " - ^ ' '

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RIVER BEND - UNIT 1 3/4 8-7 ^**"d*'"* * ' '

O CT 0 71987 L SDC U . _ _ _ _ ._ _ _ _ ___ _.

j It!C9P!C At' FMR SY59tMS f

}tRvillt&NC( R(QUIR[MENI$ (Continued) f Af ter energitation, the steady state voltage and f requency of the emergency busses shall be saintained l at 4160 s 420 volts and 60 t 1.2 Ha during this test, j b) For division 111:

Verifying de energitation of the emergency bus. l

1) l
2) Verifying the diesel generator starts ** on the auto-  ;

start signal, energizes the emergency bus with its  ;

permanently connected loads within 10 seconds, ener-  !

gites the auto connected loads through the sequencing logic,.and operates for greater than or equal to i 5 minutes while its generator is loaded with the  !

emergency loads. After energitation, the steady-  :

state voltage and frequency of the emergency bus  !

shall be maintained at 4160 1 420 volts and 60 1  !

1.2 Ha during this test.

l erifying that, upon en (CC5 actuation signal,*all automatic l

. l diesel generator trips are automatically,' bypassed except engine overspeed and generator differential current. '

l

8. 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 />.3030 31 Olesel generators 1A and 18 sha11 be loaded toOlesel generator for loade'd thetoduration 2750 2850 of the test.kw"** for the first 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> For of the >

to 2500 2600 kw*** for the remaining 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> of the test. .

diesel generator lA and ll, the generator voltage a l

  • the start signal. For diesel generator IC .the generator voltage l- and frequency shall not esteed a maximum of 5400 volts and i 66.75 He and shal.1 be greater than 3740 volts' and 68.8 Mt within l

p 10 seconds and 4160 t 420 volts The steady state generator voltage and frequency"shall be maiA-and 6011.2 H within 13 Y

4ained within these-limits during this test.' E' E" M ' [ M' "

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9. Verifying that the auto connected loads to each diesel generator t do not exceed 3130 kw for diesel generator 1A and 18 and 2600 kw )

for diesel generator 1C.

    • All diesel generator starts for the purpose of this survet11ance test may be ,

preceded by an engine prelube period.

Further, all surveillance tests, with the exception of once per 184 days, may150 alsosec) be aspreceded by wareup procedures recommended by the manuf ac and may also include gradual loading (>d wear on the diesel engine is sinimized.

turer so that the mechanical stress an

"' Momentary transijnts due to.*changiny . ! . 2. 'U bus loads

.;") ;."  ;)' shall H 7.;; no} ;hti;;"

invalidate .-iNthe H!' h -e9 % ..:;^ d t; ,

st. In ea ,

mp ted it sntn ess y to rept th pre din 24 our

.5 for o r peat ng 5 rye la e er rm urve lla ce oui ment 4.8. 1.2 rt op pr ate its

.f..a)2)and e- tre.ents 4.8 1.1 2)

  1. F Di isio 5 1 and It spe ifie 18 nththnte onp1 al urin the.f tion of firrst er ing yc1 ma be ten d to coin ide {

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Amendm(ntNo.9 RIVER BEND - UNIT 1 3/4 8-8 RECEIVED OCT 0 71987 soc .

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. ELECTRICAL POWER SYSTEMS i SURVEILLANCE REQUIR[MENTS (Continued) )

I rifying the diesel generator's capability to:

a) Synchron12e with the offsite power source, while the gener- l ator is loaded with its emergency loads, upon a simulated j restoration of offsite power, b) Transfer its loads to the offsite power source, and {

c) Se restored to its standby status. l b ~~ Verifying that, with the diesel generator operating in a test l mode and connected to its bus, a simulated ECC5 actuation signal i overrides the test mode by (1) returning the diesel generator  :

to standby operation and (2) automatically energizing the emers l

ncy loads with offsite power.

rifying that the automatic load sequence timers are OPERABLE l with the interval between each load block within i 10% of its t l

design interval'for diesel generators 1A, 18 and IC. 'l l

13. Verifying that the following diesel generator lockout features  !

prevent diesel generator starting only when required: '

a) For Diesel Generators 1A and 18:  !

. 1) Loss of control power to diesel control panel. .  ;

7) Starting
  • air pressure below 150 psi.  ;
3) Stop-solenoid energized. '

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4) Diesel in the maintenance mode (includes barring device  !

engaged). . i

5) Overspeed trip device actuated. j
6) Generator backup protection lockout relay tripped. >

[6 For Diesel Generator IC:

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% b)

Oo 1) Diesel generator lockout relays not reset. .

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2) Diesel engine mode switch not in "AUT0" position.

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3) Diesel generator output breaker closed before start of gg 2,1 Y diesel. -

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$ 4) Diesel generator output breaker in racked-out position. l g n " ;,';*gS.k [ 5) tDiesel generator regulator mode switch not in "AUT0"  !

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6) position.

Insufficient starting air pressure.

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  • 7) Loss of de power to diesel generator controls.

l- g. By verifying the Division III diesel generator ambient room temperature l l

to be 1 40'F:

( 1. At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> with,the last reported room temperature ,

1 50*F. or '

l t! tem 5) does not electrically block diesel generator from emergency starting; l however, it will affect the loading and operation of the diesel.

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