ML19318D231

Abnormal Operating Procedure, Loss of Main Feedwater, Vol 5,Revision 0

ML19318D231
Person / Time
Site:	Farley
Issue date:	05/30/1980
From:	ALABAMA POWER CO.
To:
Shared Package
ML19318D229	List: ML19318D228 ML19318D231 ML19318D233 ML19318D237 ML19318D240 ML19318D246
References
FNP-2-AOP-13.0, NUDOCS 8007080228
Download: ML19318D231 (4)

Text

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,- .: 1 VOLUME 5 FNP-2-AOP-13.0 May 30, 1980 *l

(- Revision 0

- FARLEY NUCLEAR PLANT ABNORMAL OPERATING PROCEDURE FNP-2-AOP-13.0 S

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Y LOS'S OF MAIN FEEDWATER E

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_ rnalntained Current. Do not use in a Safety Related Activity.,

i l Approved:

0 #f/pJcv Operations Superintendent Date Issued:

'. 4/0 L- 4 Diskette AOr 2 B 0070 8 0 4 . __ -

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LIST OF u::.CTIE PAGES FNP-2-AOP-13.0 e ,

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. VOLUME 5 FNP-2-AOP-13.0 FARLEY NUCLEAR PLANT UNIT 2

(~ ABNORMAL OPERATING PROCEDURE AOP-13.0 LOSS OF MAIN FEEDWATER 1.0 Purcose This procedure provides Symptoms, Automatic Actions, Immediate Operator Actions and Subsequent Operator Actions required for a loss of main feedwater.

2.0 Symptoms _

Alarm or indication of the following condition'(s) on all steam generators:

2.1 Steam generator steam flow greater than feed flow.

2.2 Steam generator level deviation (t 5% of programmed level).

2.3 Steam generator water level low alert (25%).

. 3.0 Automatic Actions

p. y 3.1 Motor driven auxiliary feedwater pumps .atart if:

3.1.1 Both main feed'ater w pumps trip, or 3.1.2 On low-low steam generator level, signal in 1/3 steam generators.

_. 3.2 Turbine driven auxiliary feedwater pump starts on low-low steam generator level signal in 2/3 steam generators.

3.3 Reactor trip on steam generator feedwater low flow with S/G level low.

4.0 Lmmediate Operator Actions 4.1 Trip the turbine.

4.2 Verify auxiliary feedwater pumps start.

4.3 Verify reactor trip (Refer to EOP 5.0, Reactor Trip).

k. A 1 Rev. 0

, ,- VOLUME 5 FNP-2-AOP-13.0 5.0 subsequent Operator Action 5.1 Control AFW flow to establish steam generator level at 33 2 5%. Limit feedwater flow rate to avoid RCS cooldown below 5450 F.

NOTE: If the condensate storage tank level decreases to four (4) feet and auxiliary

- feedwater is required for plant conditions, shift auxiliary feedwater pumps suction to the service water system per FHP-2-SOP-22.0,

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Section 4.3.

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