ML20043B543

Proposed Tech Specs 4.8.1.1.2h(6)(c) Change Re High Jacket Water Temp Trip

ML20043B543
Person / Time
Site:	Vogtle
Issue date:	05/25/1990
From:	GEORGIA POWER CO.
To:
Shared Package
ML20043B542	List: ML20043B541 ML20043B543
References
NUDOCS 9005300173
Download: ML20043B543 (2)

Text

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ENCLOSURE 3 l l

V0GTLE ELECTRIC GENERATING PLANT RE0 VEST TO REVISE TECHNICAL SPECIFICATION 4.8.1.1.2h(6)fe)

INSTRUCTIONS FOR INCORPORATION The proposed amendment to the Technical Specifications would be incorporated as .

follows:

2 Remove Paae Insert Paae 3/4 8-7* 3/4 8-7 s

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• Overleaf page containing no changes i

E3-1 l 9005300173 900525 PDR ADOCK 05000424 P PDC

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SURVEILLANCE REQUluEMENTS

(- auto-start signal; the steady-state generator voltage and frequency shall be maintained within these limits during this test;

6) Simulatingaloss-of-offsitepowerinconjunctionwithanESF Actuation test signal, and:

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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 11.5 seconds," energizes the auto-connected emergency (accident) 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 shall be maintained at 4160 +170,

-410 volts and 60 4, 1.2 Hz during this test; and N c) Verifying that all automatic diesel generator trips, except W# X engine overspeed, low lube oil pressure, high jacket water t'emperaturesWand generator differential, are automatically bypassed upon loss of voltage on the emergency bus concurrent with a Safety Injection Actuation signal.

7) 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 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 diesei generator shall be loaded to an indicated 7600'to 7700 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 diesel generator shall be loaded to en indicated 6800-7000 kW.** The generator voltage and frequency shall be 4160 + 170, - 135 volts and 60 1 1.2 Hz within 11.4 seconds after the start signal; the steady-state generatt voltage and frequency sgall be 4160 + 170, -410 volts and 60 21.2 Hz during this test. Within 5 minutes after com-pleting this 24-hour test, perform Specification 4.8.1.1.2h.6)b);,,

8) Verifying that the auto-connected loads to each diesel generator do not exceed the continuous rating of 7000 kW;

9) Verifying the diesel generator's capability to:

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• *All. engines starts for the purpose of surveillance testing as required by.

Specification 4.8.1.1.2 may be preceded by an engine prelube period as recommended by the manufacturer to minimize mechanical stress and wear on the diesel engine.

{ **This band is meant as guidance to avoid routine overloading of the engine ~

Loads in excess of this band or momentary variations due to changing bus loads shall not invalidate the test.

Mailure to maintain voltage and frequency requirements due to grid disturbances does not render a 24-hour test as a failure.

( ##If Specification 4.8.1.1.2h.6)b) is not satisfactorily completed, it is not necessary to repeat the preceding 24-hour test. Instead, the diesel generator may be operated at the load required by Surveillance Requirement 4.8.1.1.2.a5 kW for 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or until operating temperature has stabilized.

V0GTLE UNITS - 1 & 2 3/4 8-7

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