ML20210A365

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Forwards Summaries of Operating History of Electromagnetic Relief Valves,Per 731219 Request.Summaries Include Date,Type of Operation & Circumstances for Each Valve Listed.Response to Second Request Will Be Submitted by Wk of 740218
ML20210A365
Person / Time
Site: Dresden, Quad Cities, 05000000
Issue date: 01/21/1974
From: Abel J
COMMONWEALTH EDISON CO.
To: Ziemann D
US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20209J032 List:
References
FOIA-87-40 927, NUDOCS 8705050073
Download: ML20210A365 (7)
v • d • e


Text

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.. AdJ:cs Hwy to Po,: Ot:.cc box /67 q m..c,ga mino s 60330 January 21, 1974 i

Mr. D. L. Sirm. ann, Chief Operating Reactors - Branch 2 Directorate of Licensing i Office of Regulation I

U.S. htomic Energy Commission Washington, D.C. 20545

Subject:

Dresden Station Units 2 and 3, Quad-citics Station Unite 1 and 2 - Relief Vulva Operating ,

History - AFC Dkts 50-237, 50-249, 50-254 and 50-265

Dear I:

r. *iemann:

/.

1 In retpense to your letter dated December 19, 1973, attached cre sursuaries of ogeratin7 hictory of electrom? tic relie valvec fcr the subject units. The dnte, type of operation (manuti er cutcantic) , and circiaa.,t unces (startup test, carceillance, etc.) of each valve operation is listed.

1 We cro pursuing a response to the second request in your December 19, 1973 letter and are scheduling to submit this respcase by the week of February 18, 1974.

One (1) signed original and 39 copies of this infeemation are submitted for your use.

4 Very truly yours,

/

s l

/

a

, . S. Xool Nuclear Licensing Administrator

/ Doiling Water Reactors j Att.

8705050073 870428

, PDR FOIA l THOMA587-40 PDR 1

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1:JSTOM OF Et.CCTi'Ott'.TTC I:::1ATP V?.l.Vi'S FOR DBMSD:ll 2 AFD 3 I

l DR?.SDE!! 2

/t/73 - 6/30/70 4/23/70 - "A", "B", "C", "E" r.anusily initiated for capacity test.

5/5/70 -

"B" r.anually initiated 4 times for capacity test.

5/15/70 - "D" manually initiated for capacity test.

5/29/70 ' "/. " , "0", "C", "D",";" t anut.lly initia ted f or surve.illance to take HPCI out of service.

6/5/70 - "D", "E" mencally iuitiated 2 timss to decrease reactor g .. . _ vessel preccure during operation.

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1/I/70 - !?]31/70 8/5/?0 - "A", "L", "C", '!D", "E" c :nuclly initicted for capacity test.

8/0/70 - "A", "B", "C", "D", YE" r.anually initiated for capacity test.

6.; tj!

_1/1/71 - 6/30/71 1/20/71 - "A", "B", "C", "D", "C" c:nually initiated for surveillance to tal:c UFCI out of service.

5/26/71 - "A", "B", "C", "D", "C" c:nually initiated at low preseure during startup following refueling outage.

5/27/71 - "B" manually initiated for capseity test.

4_.; ;9L 7/1/71 - 12/31/71 8/6/71 - "A", "B", "C", "D", "E" canually initiated for surveillance to take HPCI cut of outage.

12/22/71 - "A", "B", "C", "D", "E" rnnually initiated for surveillence to take IIPCI out of service.

6. ist

. - .. . _ . _ _ _ r _. _ , ._ _

i i 1/1/72 - 6/10/72 5/8/72 - "A", "B", "C", "D", "E" manua lly in it ia ted a t low pressure during startup following refueling outage.

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I 7/1/72 - 12/31/72' .

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t 1/1/73 - 6/'$0/73 Nonc i

i 7/1/73 - 12/31/73 _

a/16/73 - "A", "B", "C", "D", "C" manu211y initic ted for surveillance to tako llPCI out of cervice.

11/22/73 - "I.", "1", "C", "D", "B" ranually initiated for

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surveillance to take RfCI out of service.

DREstJ!1 3 i

7/1/71- -. '.2/7_1/_71 4

i 7/10/71 - "A", "D", "C", "D", "E" mccually initiated for surveillance to take HPCI out of service.

, 7/23/71 - "A", "B", "C", "D", "E" eenually initia ted for j capscity tect.

4 8/23/71 - "A " , "B", "C", "D", "E" manually initia ted for surveillance to tr.ke HPCI cut of service.

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)' 1/1/72 - 6/30/72 Nona See next page.

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4 7/1/72 - 12_/31/7?

11/8/72 - "A", "B", "C", "D", "E" manually initiated for surveillance to take !!PCI out of service.

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1/1/73 - 6/3"/71

$/4/7? . "A" auto:r.2tien11y initiated during reactor vessel

]4/;2 pressure transient (opened pre:r.aturely at 1108 psig,

r. /,6 '7 ? setpoint of valve was 1132 psig) 5/:d/73 - "A", "B", "C", "D", "E" r.anually initiated at lou pressure during startup following refueling outage.

4-o s L y/1/73 - 12/31/73 Kanc

______._.7._ _ _ _ _ , _ . , _ . . . .

I 1, ,

j' OPERATIi!G HISTOHV OF ELECTROMATIC RELIEF VALVES FOR nUAD-CITIES 1 AND 2 1/72 - 6/72

(1) Unit 1, 4-21-72, STI-26 (Relief Valve Test)

! A: 1 time manually l B: 1 time manual'y l C: 1 time manually D: 1 time manually ,

E: 1 time manually -

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! (2) Unit 2, 5-28-72, STI-26 (Relief Valve Test)

! A: 1 time manually B: 1 time manually l

C: 1 time manually jr D: 1 time manually E: 1 tire.e manually 64 - g4 6 /_ 7_ 2 . - 1/7 3 (1) Unit 2, 6-19-72, STI-98 (Torus Pressure Wave Test) j A: 8 times manually

! B: 7 times manually

C
7 times manually D: 4 timcs manually f-e E: 3 times manually (2) Unit 1, 7-2-72, STI-31 (Loss of Aux Power Test) re A: 20 times automatically
(3) Unit 2, 10-19-72, STI-98 A&B (Special Relief Valve Test)

A: 2 times manually l

t B: 6 times manually e, C: 1 time ranually i D: 1 time manually i

I 6"'

, E: 6 times manually 1 ,6,3 1

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... . . . . . . . . . . ~ ~ .

1/73 - 6/73 (1) Unit 2, 1-13-73, D-4-2-73-6, STI-31 A: 3 times manually (2) Unit 2, 1-20-73, D-4-2-73-9, Relief Valve & MSIV Failure A: 2 times automaticaj.ly B: 1 time automatically C: 2 time? au tomatica lly y E: 2 times manually (3) Unit 2, 4-30-73, Surveillance after Modification A: 1 time manually B: 1 time manually C: 1 time manually

, D: 1 time manually E: 1 time manually (4) Unit 1, 5-8-73, Surveillance after Modi ficati on A: 1 time manually l B: 1 time manually l C: 1 time manually D: 1 time manually E: 1 time manually G.. f.

6 /73 - 1/74 (1) Unit 2, 6-7-73, D-4-2-73-32 (M1 Reg. Valve Air Line Break)

A: 3 times automatically C: 1 time automatically

,, E: 2 times automatically (2) Unit 1, 8-10-73, D-4-1-73-43 (MSIV Closure & Scram)

En 1 time automatically (3) Unit 1, 9-12-7 3, D-4-1-73-4 9 (Scram & Turbine Trip)

A: 1 time manually

(4) Unit 2, 9-29-73, D-4-2-73-46 (MSIV Closure & Scram)

A: S times manually 6 ~.s j SUMt4ARY :

Unit 1 Unit 2 Manual Automatic Manual Automatic 1/72-6/72 5 0 5 0 6/72-1/73 0 20 45 0 1/73-6/73 5 0 10 5 6/73-1/74 1 1 5 6 Totals = 11 21 65 11 e

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