ML20204J975

Rev 3 to Emergency Operating Procedure FR-H.3, Response to Steam Generator High Level

ML20204J975
Person / Time
Site:	Millstone, Haddam Neck, 05000000
Issue date:	06/03/1988
From:	CONNECTICUT YANKEE ATOMIC POWER CO.
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ML20204H467	List: A07413, Forwards Specific Emergency Operating Procedures for Use During Incident Response Ctr Activation ML20204H704 ML20204H734 ML20204H868 ML20204H928 ML20204H963 ML20204J027 ML20204J039 ML20204J092 ML20204J109 ML20204J115 ML20204J120 ML20204J128 ML20204J133 ML20204J139 ML20204J147 ML20204J497 ML20204J543 ML20204J565 ML20204J627 ML20204J633 ML20204J638 ML20204J642 ML20204J659 ML20204J669 ML20204J685 ML20204J707 ML20204J733 ML20204J739 ML20204J746 ML20204J767 ML20204J781 ML20204J786 ML20204J814 ML20204J824 ML20204J849 ML20204J853 ML20204J865 ML20204J878 ML20204J902 ML20204J914 ML20204J920 ML20204J939 ML20204J947 ML20204J954 ML20204J958 ML20204J965 ML20204J975 ML20204J982 ML20204J994 ... further results
References
FR-H.3, NUDOCS 8810250308
Download: ML20204J975 (3)

Text

dvN 3 1988 l

NGER M REV. ISSUE /DAE FR H.3 RESPONSE TO STEAM GENERATOR Rev. 3 HIGH LEVEL

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A. PURPOSE This procedure provides actions to respond to a steam generator high level condition and to address the steam generator overfdl concem.

B. SYMPTOMS OR ENTRY CONDITIONS This procedure is entered from:

1. F-0.3, HEAT SINK Critical Safety Function Status Tree on a YELLOW conditon.

2. FR H.2. RESPONSE TO STEAM GENERATOR OVERPRESSURE. Step 3, if the affected SG wide range levelis high.

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NUMBER Tnu REV. ISSLTJDATE F R.II.3 RESPONSE TO STEAM GENERATOR Rev.3 HIGli LEVEL STEP ACDON/ EXPECTED RESPONSE RESPONSE NOT OBTAINED F 7 CAUTION: IF SG %'IDE RANGE LEVEL HAS INCREASED TO GREATER THAN 72 % (68 % FOR ADVERSE CONTAINhfENT) AN EVALUATION SHOULD BE AfADE FOR SG OVERFILL CONSIDERATIONS. STEAbf SHOULD NOT BE RELEASED FROh! ANY SG %'ITH LEVEL GREATER THAN 72 % (68 % FOR ADVERSE CONTAINhfENT) PRIOR TO OVERFILL EVALUATION.

L J NOTE: THROUGHOUT THIS PROCEDURE, "AFFECTED" REFERS TO ANY SG IN H'HICH %'IDE RANGE LEVEL IS GREATER THAN 69 %.

1 IDENTIFY AFFECTED SG(s):

a. Check SG wide range levels - a. RETURNIQ procedure and step ANY GREATER DIAN 69 % in efrect.

2 ISOLATE AFFECTED SG(s):

a. Close feedwater flow valves

b. Close feedline bypass AOVs b. Locally isolate feedline bypass AOVs.

c. Close feedline isolation MOVs - c. Locally close feedhne isolation MOVs !

I QR manualisolation valves.

3 CHECK AFFECTED SG(s) LEVEL:

a. Check wide range level- a. QQIQ Step 4 LFSS THAN 72 %

(68 % FOR ADVERSE ,

CONTAINMENT) '

b. Check wide range level- b. GQ IQ Step 4.

DECREASING

c. Control AFW flow to maintain wide range level between 63 %

and 69 %

(67 % and 69 % for adverse containment)

d. RERJRNIQ procedure and step in effect Page 2 of 3

. JUN 3 1988 ,

d NUMBER TME REV. ISSUE /DATE FR H.3 l RESPONSE TO STEAM GENERATOR Rev.3 HIGH LEVEL

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STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED 4 CLOSE AFFECIED SG(s) STEAM SUPPLY VALVES TO TURBINE DRIVEN AFW PUMP (s) 5 CLOSE AFFECTED SG(s) MAIN STEAMLINE TRIP VALVE 6 CliECK AFFECTED SG(s) 2 AN E 3 QR ECA 3 SERIES RADIATION NORMAL PROCEDURE IS IN EFFECT, THEN RE1URNIQ PROCEDURE o Check air ;jector RMS AND STEP IN EFFECT.

o Check SG blowdown RMS o Sample SG(s) blowdown lines E EQIIN AN E 3 QR ECA 3 SERIES.

THEN QQIQ E 3, STEAM GENERATOR TUBE RUPTURE, STEP 1.

7 ESTABLISH BLOWDOWN FROM AFFECIED SG(s):

a. Line up affected SG(s) to the steam generator blowdown tank 8 RERTRNIQ PROCEDURE AND STEP IN EFFECT END I

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