ML17285A135
| ML17285A135 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 12/02/1988 |
| From: | WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | |
| Shared Package | |
| ML17285A134 | List: |
| References | |
| TAC-71390, NUDOCS 8812200188 | |
| Download: ML17285A135 (1) | |
Text
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" ELECTRICAI POWER SYSTEMS.
SURVEILLANCE RE UIREHENTS Continued
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'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
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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.
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'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