ML20236D020

Proposed Tech Specs Re Emergency Diesel Generators

ML20236D020
Person / Time
Site:	Waterford
Issue date:	07/24/1987
From:	LOUISIANA POWER & LIGHT CO.
To:
Shared Package
ML20236D007	List: ML20236D020 W3P87-1639, Revised Application for Amend to License NPF-38,changing Tech Specs Re Emergency Diesel Generators
References
NUDOCS 8707300273
Download: ML20236D020 (4)

Text

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ELECTRICAL POWER SYSTEMS 1

ACTION (Continued)

A. 6 #'

g."' With two of the above required of fsite A.C. circuits inoperable, demonstrate the OPERA 8ILITY of two diesel generators by performing l

Surveillance Requirement 4.8.1.1.2a.4. within '. 5::: n: :t !:::t

r 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> th

r

:ft:r, unless the diesel generators are alread operating;' restore :t i: st one of the inoperable offsite ::u ::. to OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in at least HOT STANOBY with the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. IWith only one ffsite sour restore rest e at JAlsgA7' lea two o site cuits to' RA8LE st s within hour from/

)

t of i tial ss or be' at less T STAN08 ithin e jne hours and COLD 5 WN withi e follow a 30 h s.

g.k.With'twoof.theaboverequireddieselgeneratorsinoperable.

l demonstrate the OPERA 8ILITY of two offsite A.C. circuits by performing. Surveillance Requirement 4.8.1.1.la. within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and-at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; restore :t ! =:t one of the l

. inoperable diesel generators to OPERA 8LE status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or be in at least HOT STAN08Y within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUT 00W within the followina 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />,i Restore least t diese generators INSEAT to O ERABLE tus thin 72 ours fr time o nitial ss or g 6

i t lea NOT N08Y w in th ext 6 h s and LO JS t!TDOWN w thin a foi owina curs.

i SURVEILLANCE REQUIREMENTS 4.8.1.1.1 Each of the above required independent circuits between the offsite transmission network and the onsite Class 1E distribution system shall be:

Determined OPERABLE at least once per 7 days by verifying correct c.

breaker alignments, indicated power availability, and b.

Demonstrated OPERABLE at least once per 18 months by transferring manually and automatically unit power supply from the normal circuit to the alternate circuit.

Each diesel generator shall be demonstrated OPERA 8LE:$

4.8.1.1.2 I

I In accordance with the frequency specified in Table 4.8-1 on a a.

STAGGERED TEST BASIS by:

1.

Verifying the fuel level in the diesel oil feed tank, 2.

Verifying the fuel level in the diesel generator fuel oil storage tank, 3.

Verifying the fuel transfer pump can be started and transfers fuel from the storage system to the diesel oil feed tank, j

$ )LL PL A NN c0 Srnars Fon Tuc PURPoss 0C fuRVG'tL L /?N6G lN

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Ta is Sce r so N

. Reconncupsa/Any Be Pesce nso By,4 PRc L ues Pe.qwo As By THE MANUPAtrUR F~lt WATERFORD - UNIT 3 3/4 8-2 B707300273 870724 ADOCKOSOOg2 PDR P

u ELECTRICAL POWER' SYSTEM

-SURVEILLANCE REQUIREMENTS (Continued) 4.

Verifying the diesel starts from ambient condition and accelerates to at least 600 rps (60

• 1.2 Hz) in less than or equal to 10 seconds.

The generator voltage and frequency. shall be 4160 2 420 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:

j a).

Manual.

i b)

Slaulated loss-of-offsite power by itself.

.j c)

Simulated loss-of-offsite power in conjunction with an ESF

{

actuation test signal.

{

d)

An ESF actuation test signal by itself.

{

5.

Verifying the generator is synchronized, Icaded to ;;r;;t:r th:n t

^

r :;:1 t: " ^^ i" in less than or equal to 176 seconds," and so Mde/ed operates M th : ' : d -- - " ' ^ - ' " - ^ - ^ ^ "- ' ' ' ' ' ^^ '" f o r a t woo. goo t leastanadditional65 minutes,and 6.-

Verifying the diesel generator is aligned to provide standby power to the associated energency busses.

j 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 diesel oil feed

{

tanks.

At least once per 92 days and from new fuel oil prior to addition to c.

the storage = tanks, by obtaining a sample'of fuel oil in accordance with ASTM-0270-1975, and by verifying that the sample meets the following minimum requirements and is tested within the specified time limits:

1.

As-soon as sample is takeri (or prior to adding new fuel to the storage tank) verify in accordance with the test specified in ASTM-0975-77 that the sample has:

a)

A water and sediment content of less or equal to 0.05 volume percent.

b)

A kinematic viscosity 9 40*C of greater than or equal to 1.9 contistokes, but less than or equal to 4.1 centistokes.

i c')

A specific gravity as specified by the manufacturer 9 60/60*F of greater than or equal to 0.80 but less than or equal to 0.99 or an API gravity 9 60*F of greater than or equal to 11 degrees but less than or equal to 47 degrees.

• The diesel generator start (10 sec) and subsequent loading (176 sec) from ambient conditions shall be performed at least once per 184 days in these surveillance tests.

All other engine starts and loading for the purpose of this surveillance testing may be preceded byw engine ;r:let; ;;-':1: d/0r~

th:7. warsup procedures recommended by the manufacturer so that mechanical stress and wear on the diesel engine is minimized.

• " See INSERT G

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WATERFORD - UNIT 3 3/4 8-3 b

ELECTRICAL' POWER SYSTEMS

_ SURVEILLANCE REQUIREMENTS (Continued) i f

y 2.

Verify an impurity level of less than 2'ag of insolubles per 100 m1 when tested in accordance with ASTM-02274-70; shall be: completed within.7 days after obtaining the sample but k

analysis IN SU T '

may be performed after the addition of new fuel oil; and i

p-3.

Verify the other properties specified in Table 1 of. ASTM-D975-1977 and Regulatory Guide 1.137 Revision 1, October 1979, Position 2.a., when tested in accordance.with ASTM-0975-1977; l

analysis shall be completed within 14 days after obtaining the_ sample but d

may be performed.after the addition of new fuel oilj d.

At least once per 18 months during shutdown by:

1.

Verifying the generator capability to reject a load of greater 4160 + 420 volts and frequency atthan or equal to 498 W

{

60 +4.5, -1.2 Hz.

)

j 2.

Verifying the generator capability to reject a load of 4400 W without tripping.

The generator voltage shall not exceed 4784 volts during and following the load rejection.

3.

Simulating a loss-of-offsite power by itself, and:

a)

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

b)

Verifying the diesel starts on the auto-start signal, energizes the emergency busses with permanently connected loads within 10 seconds after the auto start signal, energizes the auto-connected shutdown loads through:the load sequencer 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 emergency, busses shall be maintained at L

4160 t 420 volts and 60 + 1.2, -0.3 Hz during this test.

4.

Verifying that on an SIAS actuation test signal (without loss-i of-offsite power) the diesel generator starts on the auto-start i

signal and operates on standby for greater than or equal to 5 minutes.

The steady-state generator voltage and frequency shall be 4160 2 420 volts and 60 t 1.2 Hz within 10 seconds after the auto start signal; the generator voltage and frequency shall be maintained within these limits during this test.'

5.

Simulating a loss-of-offsite power in conjunction with an SIAS actuation test signal, and p

a)

Verifying deenergization of the emergency busses and load i

shedding from the emergency busses.

L WATERFORD - UNIT 3 3/4 8-4 ANUDMENT NO. 4

4

'A INSERT G' Thii band is meant as. guidance co' avoid' routine overloading' of the.

. engine.: Loads in' excess 'of this. band' for-special testing under direct '

monitoring of the manufacturer or momentary varistion due-to' changing b'us loads.shall not invalidate the test.

INSERT H I

- *** If Surveillance Requirement 4.8.1.1.24 3b is not satisfactorily completed, it is not necessary to repeat.che. preceding 24-hour test.

Instead, the diesel generator may be operated at an indicated 4200-4400 kv** for l' hour'or until internal operating' temperatures have stabilized.

. INSERT J I

If the number of ' failures in the last 20 or '100. starts (on a per diesel

- generator basis) -exceeds 1 the criteria of 'in Table 4.8 take the appropriate action specified in ehee-Table 4,8-2. A ND A Tr4 dHMENT*S T*H E R ETO.

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