ML19350E466
| ML19350E466 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 06/19/1981 |
| From: | Groce R Maine Yankee |
| To: | Clark R Office of Nuclear Reactor Regulation |
| References | |
| FMY-81-933, NUDOCS 8106230123 | |
| Download: ML19350E466 (2) | |
Text
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- HARHEE 'ATOMWPOWER COMPA05 *
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ENGINEERING OFFICE FR AMINGH AM, M ASS ACHUSETTS 017o1 617 872 8100 UJ y
m June 19, 1981
.C.bi United States Nuclear Regulatory Commission Washington, D. C.
20555 Attention: Office of Nuclear Reactor Regulation Division of Licensing Operating Reactors Branch 3 Mr. Robert A. Clark, Branch Chief
References:
(1) Lice 1se No. DPR-36 (Docket No. 50-309)
(2) YAEC-1259, Maine Yankee Cycle 6 Core Performance Analysis, A. S. DiGiovine et al.,1981 Submitted by MYAPC letter to USNRC (FMY 81-65), dated April 28, 1981 Subject :
Cycle 6 Startup Physics Testing
Dear Sir:
During conversation with Ms. Chatterton of your staff on May 27, 1981, we agreed to add an additional test to those listed on Table 7.1 found on page 126 of Reference (2). This additional test consists of a measurement using INCA to monitor in-core tilt as a funct' n of reactor power level.
We have enclosed a revised page of Table 7.1 for your information.
Very truly yours, MAINE YANKEE ATOMIC POWER COMPANY AA e
R. H. Groce Senior Engineer - Licensing RHG/kab Enclo su re N
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F Table 7.1
' Maine Yankee Cycle'6 Startup Test Acceptance Criteria Mea surement Conditions Criteria 1.' - Critical Boron -
Hot zero power, near Measurement within Concentration al1~ rods out
+1%Ap~of predicted value 2..
CEA Bank Worths.
Hot-zero power, CEA ToEal worth within'+10%
Banks 1+2+3+4+5 in the of the predicted value.
non-overlap condition 3.
CEA Bank' Worths Hot zero power, CEA If the criteria in Banks'A+BvC+1+2+3+4+5 Measurement l(2).is not met, in the'non-overlap the total worth of all CEA condition banks must be within + 10%
of the predicted value.
4.
Ejected CEA Worth Hot zero power, pre-Ejected CEA worth no ejection'CEA banks more than 15% greater inserted for measure-than the predicted value-ment of the most.
limiting near full power ejected CEA 5.
Isothermal Hot zero power, near M.naurement within Temperature all rods out
+ 0.5 x 10-4 Ap for of Coefficient predicted value 6.
Control Rod Drop Operating temperature, Drop times no greater than insertion to 90%
2.70 seconds 7.
Radial Power At or slightly below Each assembly average Distribution 50% power, near all power within +10% of rods out predicted value 8.
INCA Tilt 5-48% rated power, Tilt trends to less l
Monitoring for near all. rods out, tilt than 0.3 for greater Symmetry is monitored at 5%
than 50% power operation.
Verification power intervals i
l
-126-l