ML17285A135

Proposed Tech Spec,Revising Surveillance 4.8.1.1.2.e.7 to Be Consistent W/Design of Automatic Bypass Function of Diesel Generator Trips

ML17285A135
Person / Time
Site:	Columbia
Issue date:	12/02/1988
From:	WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:
Shared Package
ML17285A134	List: ML17285A132 ML17285A135
References
TAC-71390, NUDOCS 8812200188
Download: ML17285A135 (1)

Text

~~N~~p'l l~)l)l" ELECTRICAI POWER SYSTEMS.SURVEILLANCE RE UIREHENTS Continued~O tQN mo Clu LO+C)A 0/'or 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 t 420 volts and 60 2 3.0 Hz during this test.b)For division 3: 1)2)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 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 greater than or equal to 4650 kW for DG-1~and OG-2 and 2850 kW for DG-3.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 4400 kM for DG-1 and DG-2 and 2600 kW for DG-3.The generator voltage and frequency shall be 4160 (+420,-250)volts for DG-1 and DG-2, 4160.1 420 volts for OG-3 and 60 a 3.0 Hz within 10 seconds for DG"1 and OG-2 and 13 seconds, for OG-3 after the start signal;the steady-state generator voltage and frequency shall be main-tained within 4160 k 420 volts and the above frequency limit during this test.Within 5 minutes after completing this 24-hour test, per form Surveillance Requirement 4.8.1.1.2.

e.4.a)2)and b)2)." Verifying deener gization of the emergency bus.Verifying the diesel generator starts on the auto-start signal, energizes the emergency bus with the permanently connected loads and the auto-connected emergency loads within 30 seconds and operates for greater than or equal to 5 minutes while its generator is loaded with th~ergency loads.After energization,.the steady sta~ltage and frequency'of the emergency bus shall be ma ined at 4160+420 volts and 60+3.0 Hz during test.(CA<)suow i~anh, 7.Verifying that all atic diesel genera o reps are automatically bypass u on an actuation signal exceptqgg~i~~.

ngine overspeed and generator differential current,'ncomplete starting sequence and emergency manual stop.g+a.e'8tB~~R"If Surveillance Requirements 4.8.1.1.2.e;4.a)2) and/or b)2)are not satis" factorily completed, it is not necessary to repeat the preceding 24-hour test.Instead, the diesel generator may be operated at 4400 kW for DG-1 or OG-2 or 2600 kW for DG"3 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.

~WASHINGTON NUCLEAR" UNIT 2 3/4 8"6'mendment No.19