ML20071A057

Proposed Tech Specs Re Emergency Diesel Generator Surveillance Testing,Per Generic Ltr 84-15

ML20071A057
Person / Time
Site:	Hope Creek
Issue date:	04/01/1991
From:	Public Service Enterprise Group
To:
Shared Package
ML20070U137	List: ML20070U135 ML20071A057
References
GL-84-15, NUDOCS 9104150198
Download: ML20071A057 (4)

Text

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INSERT l'OR PROPOSED CilANGE TO E!!&TRICAl, POVFR SYSTfMS TECHNICAL, SPJCIFI.CAJ LONS INSERT 1

...shallbepreceded,within5 minutes,byaprelubeperiodandoperati$n at rated load for at least i hour or until operating temperatures have stabilized.

9104150190 910401 PDR ADOCK 05000354 PDR p ,

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENT _S (Continued) ,,,_

3. Within 2 weeks after fbtaining the sample, verify that the other -

properties specified :n Table 1 of ASTM 0975-77 and Regulatory Guide 1.137 Position 2.a. are met when tested in accordance withASTM0$75-77.

g. At least once per 2 months, by verifying the buried fuel oil transfer piping's cathodic protection system is OPERABLE and at least once per year by subjecting the cathodic protection syste' to a performance test,

h. At least once per 18 months #,M during shutdown, bf:

1. Subjecting the diesel to an inspection in accJre nce with procedurespreparedinconjunctionwithitsmanufa-turer's recommendations for this class of standby service.

2. Verifying the diesel generator capability to rtiect a load of greater than or equal to that of the RHR pump me, ton (1003 kW) for each diesel generator while maiY aining volt 6p at 4160 t 420 volts and frequency at 60 1 1.2 Hz.

3. Verifying the diesel generator capability to rejec'. 6 load of 4430 kW without tripping. The generator-voltage shsil not exceed 4580voltsduringandfollowingtheloadrejactie.

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

a) Verifying loss of power is detected and deenergizstioa of the emer busses, gency busses and load shedding from the emergency b) Verifying the diesel generator starts

• on the auto st.irt signal, energizes the emergency busses with permanentiy connected loads within 10 seconds after receipt of t' < start signal, energizes the autoconnected shutdown loads in'ough the load sequencer and operates for greater than c/ ettual to 5 minutes while its generator is loaded with W shutdown loads. After energization the steady state voltage and frequency of the emergency, busses shall be maintatoed at 188EIT I 4160 t 420 volts and 60 i 1.2 Hz during this test. -

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must be loaded in accordance with the manufacturer's recommendations. 4

1. 1. The surveillance interval for Emergency Diesel Generators 1AG400 and 1DG400, '

overdue beginning August 19 and 27, 1989 respectively, is extended until October 15, 1989 and the provisions of Specification 4.0.2.a are not applicable for this one-time extension (i.e., this surveillance interval will be considered as an 18-month interval). With regard to the provisions of Specification 4.0.2.b.

the combined time interval accrued for previous consecutive intervals for this surveillance section by all four Emergency Diesti Generators, on a one-time oasis, is considered to be zero upon complettor,, during the second refueling outage, of all 18 month surveillance of this fpecificction.

HOPE CREEK 3/4 8-6 Amendment No.

A)O Cl/MC(7Ill$ l15, INCLUDED fol? Cb"DNUOY' ELECTRICAL POWER SYSTEMS SURVEILLANCE RE0VIREMENTS (Continued)

5. Verifying that on an ECCS cetuation test signal, without loss of of fsite power, the diesel generator starts on the auto start signal and operates on standby for greater than o.' equal to

$ minutes. The generator voltage and frequency sha n be 4160 1420 volts and 6011.2 Hz within 10 seconds after the i auto-start signal; the steady state generator voltage and fre- l quency shr.11 be maintained within these limits during this test.

6. Simulat'ng a loss of offsite puwer in conjunction with an ECCS actuation test signal, and:

a) Verifying loss of power is detected and deenergization of the emergency busses and load shedding from the emergency -

busses, b) Verifying the diesel generator starts

• on the auto start signal, energizes the emergency busses with permanently connected loads within 10 seconds af ter receipt of the start signal, energizes the autoconnected shutdown loads through the load sequencer 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 shal_1 be main-tained at 4160 1 420 volts and 60 i 1.2 Hz during this test.

7. Verifying that all automatic diesel generator trips, except engine overspeed, generator differential current, generator overcurrent, bus differential current and low lube oil pressure are automatically bypassed upon loss of voltage on the emergency bus concurrent with an ECCS actuation signal.#

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 />.

During the first 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 between 4300 and 4400 kW** and during the remaining 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 between 4800 and 4873 kW. The generator voltage and

• This diesel generator start (10 sec) and subsequent loading (130 sec) from ambient sonditions may be preceded by an engine prelube period and/or other warmup procedures recommended by.the manufacturer so that mechanical stress-and wear on the diesel engine is minimizedi

• • This band is meant as guidance to avoid routine overloading of the engine.

Loads in excess of this band shall not invalidate.the test; the loads; however, shall not bp less than 4300 kW nor greater than 4873.kW.

1. Generator differential current, generator overcurrent, and bus differential.

current is two-out-of-three logic and low lube oil pressure is two-out-of-four logic.

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HOPE CREEK 3/4 8-7 1

1 ., __ _.._. _ ___ _ - _ _ _ . - . _ _ . _ _ _.

I ELECTRICAt POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) frequency shall be 4160 1 420 volts and 60 1 1.2 Hz within 10 seconds after the start signal; the steady state generator intained within these limits voltage ttring_this et and f requegMH&:

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9. Verifying that the auto-connected loads to each diesel generator do not exceed the continuous rating of 4430 kW.

10. 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 loadt, to the offsite power source, c) Be restored to its standby status, and d) Diesel generator circuit breaker is open.

11. Verifying that with the diesel generator operating in a test mode and connected to its bus, a simulated ECCS actuation signal overrides to standby the test mode operation, and by((1) returning energizes

2) automatically the dieselthe generator emergency loads with offsite power.

12. Verifying that the fuel cil transfer pump transfers fuel oil from each fuel storage tank to the day tank of each diesel via the installed cross connection lines.

13. Verifying that the automatic load sequence timer is OPERABLE with the interval betw4en each load block within i 10% of its design interval.

14. Verifying that the following diesel generator lockout features prevent diesel generator starting only when required:

a) Engine overspeed, generator differential, and low lube oil pressure (regular lockout relay, (1) 86R).

b) Backup generator differential and generator overcurrent (backup lockout relay, (1) 86B) c) Generator ground and lockout relays-regular, backup and test, energized (breaker failure lockout relay, (1) 86F) j

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-d i e ssi-gene r a to r-may4e-ope ra ted-a t-between-4300-kw-e nd-4400-kw-fe e-ene-hour-

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