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Forwards Response to Request for Info Re Low Power Natural Circulation Testing Conducted on 800705-16
	ML20024D893
Person / Time
Site:	North Anna
Issue date:	08/02/1983
From:	Stewart W; VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Clark R, Harold Denton; Office of Nuclear Reactor Regulation
References
	427, NUDOCS 8308080369
	Download: ML20024D893 (21)
	v • d • e

-- -

i g..- t VIRGINIA ELECTRIC AND Power COMPANY RIcnnoxo,VINGINIA 232G1 W.L.STswAar Vaca Paserpeur Nect. sam oramarsons -

August 2, 1983 Mr. Harold R. Denton, Director Serial No. 427 Office of Nuclear Reactor Regulation N0/JHL:acm Attn:

Mr. Robert A. Clark, Chief Docket No. 50-339 Operating Reactors Branch No. 3 License No. NPF-7 Division of Licensing U. S. Nuclear Rogulatory Commission Washington, D. C. 20555 q; h x

Gentlemen:

4:'

VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNIT NO. 2 RESPONSE TO THE REQUEST FOR INFORMATION CONCERNING hs i'

LOW POWER NATURAL CIRCULATION TESTING

\\

,Euclosed is the response to the request for information concerning low power natural circulation testing at North Anna Unit No. 2, conducted July 5, 1980 through July 16, 1980. Attachments 1 through 5, respectively, contain all the da,ta that was available for the natural circulation tests that were conducted

'on July 5, 1980, July 8, 1980, July 8, 1980, July 9, 1980 and July 16, 1980.

(Note that the test was conducted twice on July 8,

1980)

The data in Attachments 1-through 5 are 30 minute plots of Pressurirer Pressure vs. Time and RCS Pressure vs. Time, operating conditicas, prior to and during natural cir'culation testing and the control conditions of the PORV's.

L Very truly yours, 4

W. L. Stewart Attachments cc:

Mr. James P. O'Reilly Regional Administrator

-Region II Mr. M. B. Shymlock NRC Resident Inspector 4-North Anna Power Station

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n. =. OPERATING CONDITIONS PRIOR TO AND DURING NATURAL CIRCULATIOM TESTING Test Date: July 5, 1980 Test Conditions Initial In Relation Parameter Conditions With Time (Minutes) Pressurizer Pressure, psig 2241.0 No Data Available Pressurizer Level, % 27.0 RCS Loop 1 T, *F 549.0 H RCS Loop 1 T, "F 548.5 c RCS Loop 2 T, 'F 552.0 RCS Loop 2 T,,, *r' 548.5 RCS Loop 3 T', "F 542.0 H RCS Loop 3 T 'F 550.0 Steam Cenerafo,r 1 Level (NR), % 28.0 Steam Generator 2 Level (NR), % 29.0 Steam Generator 3 Level (NR), % 31.0 Steam Generator 1 Level (WR), % 63.5 Steam Generator 2 Level (WR), % 65.0 Steam Generator 3 Level (WR), % 65.0 Steam Generator 1 Pressure, psig 1000.0 Steam Generator 2 Pressure, psig 1000.0 Steam Generator 3 Pressure, psig 1000.0 Steam Generator 1 Feedwater Flow, Ibs/hr 0.0 Steam Generator 2 Feedwater Flow, 1bs/hr 0.0 Steam Generator 3 Feedwater Flow, Ibs/hr 0.0 6 Steam Generator 1 Steam Flow, Ibs/hr 1.3x10 6 Steam Generator 2 Steam Flow, 1bs/hr 1.15x10 Steam Generator 3 Steam Flow, lbs/hr 0.0 Contro,1 Conditions of the PORV's The PORV's vern in automatic during natural circulation testing. The setpoints were in accordance with Technical Specification 3.4.9.3.

1, e ATTACIMENT 2

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OPERATING CONDITIONS PRIOR TO AND DURING NATURAL CIRCULATION TESTING Test Date: July 8, 1980 Test Conditions Initial In Relation Parameter Conditions With Time (Minutes) Pressurizer Pressure, psig 2230.0 No Data Available Pressurizer Level, % 25.0 RCS Loop 1 T, 'F 545.0 H RCS Loop 1 T, *F 545.5 RCS Loop 2 T", *F 555.0 RCS Loop 2 T, 'F 540.0 RCS Loop 3 T"", 'F 543.0 RCS Loop 3 T, 'F 550.0 Steam GeneraEor 1 Level (NR), % 31.0 Steam Generator 2 Level (NR), % 29.0 Steam Generator 3 Levtl (NR), % 32.0 Steam Generator 1 Level (WR), % 64.0 Steam Generator 2 Level (WR), % 65.0 Steam Generator 3 Level (WR), % 65.0 Steam Generator 1 Pressure, psig 1000.0 Steen Generator 2 Pressure, psig 1000.0 Steam Generator 3 Pressure, psig 1000.0 Steam Generator 1 Feedwater Flow, lbs/hr 0.0 Steam Generato.r 2 Feedwater Flow, lbs/hr 0.0 Steam Generator 3 Feedwater Flow, Ibs/hr 0.0 Steam Generator 1 Steam Flow, lbs/hr 0.0 Steam Generator 2 Steam Flow, lbs/hr 0.0 Steam Generator 3 Steam Flow, lbs/hr 0.0 Control Conditions of the PORV's The PORV's were in automatic during natural circulation testing. The setpoints were in accordance with Technical Specification 3.4.9.3. t

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OPERATING CONDITIONS PRIOR TO AND DURING NATURAL CIRCULATION TESTING .? Test Date: July 8, 1980 Initial Test Conditions in Relation With Time (Minutes) Parameter Conditions 6 9 11 15 19 23 27 29 Pressurizer Pressure, psig 2135.0 2234.7 2237.1 2235.5 2235.0 2235.4 2235.1 2222.5 2208.0 Pressurizer Level, % 22.0 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 RCS Loop 1 T, F 547.0 H RCS Loop 1 T, 'F 550.0 RCS Loop 2 T", "F 548.0 RCS Loop 2 T, *F 545.0 C RCS Loop 3 T, *F 548.0 RCS Loop 3 T, *F 547.0 Steam GeneraEor 1 Level (NR),% 34.0 38.5 38.9 38.8 39.1 39.1 38.2 36.8 36.7 Steam Generator 2 Level (NR),% 34.0 29.6 30.1

30..!

30.7 31.5 31.6 30.6 29.9 Steam Generator 3 Level (NR),% 33.0 32.0 32.4 32.6 33.4 34.1 34.9 34.5 33.8 Steam Generator 1 Level (WR),% 64.0 Steam Generator 2 Level (WR),% 64.0 St(.am Generator 3 Level (WR),% 64.0 Steam Generator 1 Pressure, psig 1000.0 998.4 998.7 998.7 998.7 998.7 999.1 999.1 999.1 Steam Generator 2 Pressure, psig 1000.0 1000.8 1000.8 1000.8 1000.8 1000.8 1001.4 1001.1 1001.1 Steam Generator 3 Pressure, psig 1000.0 999.4 999.7 999.4 999.4 999.7 999.7 999.7 999.7 Steam Generator 1 Feedwater Flow, Ibs/hr 0.0 Steam Generator 2 Feedwater Flow, lbs/hr 0.0 Steam Generator 3 Feedwater Flow, Ibs/hr 0.0 Steam Generator 1 Steam Flow, lbs/hr 0.0 Steam Generator 2 Steam Flow, Ibs/hr 0.0 Steam Generator 3 Steam Flow, lbs/hr 0.0 Control Conditions of the PORV's The PORV's were in automatic during natural circulatien testing. The setpoints were in accordance with Technical Specification 3.4.9.3.

m

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OPERATING CONDITIONS PRIOR TO AND DURING NATURAL CIRCULATION TESTING Test Date: July 9, 1980 Test Conditions Initial In Relation Parameter Conditions With Time (Minutes) Pressurizer Pressure, psig 2230.0 No Data Available Pressurizer Level, % 23.0 RCS Loop I T, *F 544.0 H RCS Loop 1 T, *F 543.0 RCS Loop 2 T",

F 544.0 RCS Loop 3 T", '"F RCS Loop 2 T' F

543.0 545.0 RCS Loop 3 T, 'F 550.0 Steam GeneraEor 1 Level (NR), % 35.0 Steam Generator 2 Level (NR), % 33.0 Steam Generator 3 Level (NR), % 36.0 Steam Generator 1 Level (WR), % 64.0 Steam Generator 2 Level (WR), % 65.0 Steam Generator 3 Level (WR), % 65.0 Steam Generator 1 Pressure, psig 1005.0 Steam Generator 2 Pressure, psig 1005.0 Steam Generator 3 Pressure, psig 1005.0 Steam Generator 1 Feedwater Flow, lbs/hr 0.0 Steam Generator 2 Feedvater Flow, lbs/hr 0.0 Steam Generator 3 Feedwater Flow, lbs/hr 0.0 Steam Generator 1 Steam Flow, Ibs/hr 0.0 Steam Generator 2 Steam Flow, Ibs/hr 0.0 Steam Generator 3 Steam Flow, lbs/hr 0.0 Control Conditioits of the PORV's The PORV's were in automatic during natural circulation testing. The setpoints were in accordance with Technical Specification 3.4.9.3. A I

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OPERATING CONDITIONS PRIOR TO AND DURING NATDRAL CIRCULATION TESTING / Test Date: July 16, 1980 Initial Test Conditions in Relation With Time (Minutes) Parameter Conditions 0 4 8 12 16 20 24 28 30 Pressurizer Pressure, psig 2220.0 2239.5 2245.7 2238.6 2240.0 2237.9 2237.2 2236.1 2244.7 2285.2 Pressurizer Level, % 22.0 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 RCS Loop 1 T ' H RCS Loop 1 T, *F 545.0 C RCS Loop 2 T,, *F 550.0 3 RCS Loop 2 T, *F 545.0 RCS Loop 3 T", F 550.0 H RCS Loop 3 T, 'F 545.0 Steam Generafor 1 Level (NR),% 32.0 34.3 24.5 31.6 33.8 30.8 27.2 30.7 31.7 32.4 Steam Generator 2 Level (NR),% 32.0 29.9 25.7 31.7 32.5 29.2 26.6 28.6 29.8 29.9 Steam Generator 3 Level (NR),% 33.0 38.8 33.6 37.4 38.8 35.5 30.3 33.8 34.7 34.2 Steam Generator 1 Level (WR),% 62.0 Steam Generator 2 Level (WR),% 63.0 Steam Generator 3 Level (WR),% 64.0 Steam Generator 1 Pressure, psig 960.0 976.9 951.9 973.1 975.1 969.0 965.9 967.3 937.9 979.9 Steam Generator 2 Pressure, psig 970.0 978.9 953.6 974.8 976.9 971.1 967.6 969.3 940.6 933.0 Steam Generator 3 Pressure, psig 950.0 976.9 952.2 972.7 975.1 969.0 965.9 967.3 938.9 981.3 Steam Generator 1 Feedwater Flow, lbs/hr 0.0 Steam Generator 2 Feedwater Flow, lbs/hr 0.0 Steam Generator 3 Feedwater Flow, lbs/hr 0.0 Steam Generator 1 Steam Flow, lbs/hr 0.0 Steam Generator 2 Steam Flow, lbs/hr 0.0 Steam Generator 3 Steam Flow, lbs/hr 0.0 i Control Conditions of the PORV's The PORV's were in automatic during natural circulation testing. The setpoints were in accordance with Technical Specification 3.4.9.3. i}}

ML20024D893

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