ML20134M015

Proposed Tech Specs 3.8.1 Re AC Sources Operating

ML20134M015
Person / Time
Site:	River Bend
Issue date:	11/15/1996
From:	ENTERGY OPERATIONS, INC.
To:
Shared Package
ML20134M014	List: ML20134M015 RBG-43328, Application for Amend to License NPF-47,requesting Mod to Surveillance Requirement 3.8.1.14 to Allow 24-hour Diesel Generator Maint Run While Unit Is in Either Mode 1 or Mode 2
References
NUDOCS 9611220163
Download: ML20134M015 (3)

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9611220163 961115 PDR ADOCK 05000450 P PDR

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SR 3.8.1.12 ------------------NOTE--------------------  !

This Surveillance shall not be performed in )

MODE 1, 2, or 3. However, credit may be  ;

~taken for unplanned events that satisfy l this SR.

Verify each DG's automatic trips are 18 months bypassed on an actual or simulated ECCS initiation signal except: *

a. Engine overspeed; and

b. Generator differential current.

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1 3R 3.3.1.13 -------------------NOTES------------------- '

1. Momentary transients outside the load and power factor ranges do not invalidate this test. -

2. Thi: Surveillance :h:11 .st be p :f :::d in "005 1 :: 2. ":x: ::,

credit may be taken for unplanned events that satisfy this SR.

Verify each DG operating at a power factor ~ 18 months s 0.9, _ operates for 2 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />s:

a. For DG 1A and DG 1B loaded 2 3030 kW and 5 3130 kW; and

b. For DG 1C:

1. For 2 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> loaded 2 2750 kW and 5 2850 kW, and

2. For the remaining hours of the test loaded 2 2500 kW and s 2600 kW.

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., b BASES SURVEILLANCE SR 3.8.1.13 (continued) 9EQUIREMENTS equivalent to the continuous rating of the DG, and 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> of which is at a load equivalent to 1104 of the continuous duty rating of the DG, An exception to the loading .

i requirements is made for DG 1A and DG 18. DG 1A and DG 1B are operated for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at a load greater than or equal to the maximum expected post accident load. Load carrying capability testing of the Transamerica Delaval Inc. (TDI)  !

diesel generators (DG 1A and DG 1B) has been limited to a load less than that which corresponds to 201 psig brake mean effective pressure (BMEP). Therefore, full load testing is performed at a load 2 3030 kW but < 3130 kW. The DG starts for this Surveillance can be performed either from standby

- or het conditions. The provisions for prelube and warmup, discussed in SR 3.8.1.2, and for gradual loading, discussed in SR 3.3.1.3, are applicable to this SR.

In order to ensure that the DG is tested under load i conditions that are as close to design conditions as

{ possible, testing must be performed using a power factor 5 0.9. This power factor is chosen to be representative of j the actual design basis inductive loading that the DG could ,

, experience.  !

} The 18 month Frequency is consistent with the recommendations of Regulatory Guide 1.108 (Ref. 9), ]

, paragraph 2.a.(3); takes into consideration plant conditions j required to perform the Surveillance; and is intended to be

ensistent with expected fuel cycle lengths.

. This Surveillance is modified by two Notes. Note 1 states j

that momentary transients due to changing bus loads do not i invalidate this test. The load band is provided to svoid routine overloading of the DG. Routine overloading taay

result in more frequent teardown inspections in accordance ,

i with vendor recommendations in order to maintain DG CPERABILITY. Similarly, momentary power factor transients l'

above the limit do not invalidate the test. The reason for

Note 2 is that durin; cp:: tion aith th: ::::te: critical,  ;

p :ferm:n:: of this S." :culd ::us p :turbation: t: th:

cle ::ic:1 di::::butier sy :::: th : aculd challeng:

centinu:d ::::dy ::::: sp : tion and,  : : ::: ult, plane i

cfaty cy:::::v- Credit may be taken for unplanned events  !

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