ML20210U168
| ML20210U168 | |
| Person / Time | |
|---|---|
| Site: | Mcguire, McGuire, 05000000 |
| Issue date: | 04/04/1984 |
| From: | Kitlan M DUKE POWER CO. |
| To: | |
| Shared Package | |
| ML20210T874 | List: |
| References | |
| PT--A-4150-11A, PT-0-A-4150-11A, TAC-62981, TAC-62982, NUDOCS 8702180405 | |
| Download: ML20210U168 (23) | |
Text
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Attachment 4-a Form 34731 (1041)
(Formerly SPD 10021)
DUKE POWER COMPANY. (1) ID No:PT/0/A/4150/11A PROCEDURE PREPARATION Change (s) O to j PROCESS RECORD -0 Incorporated
- (2) STATION
- McGuire '
(3) PROCEDURE TITLE: Control Rod Worth Memnur== ant! Rod Swan (4) PREPARED BY: bn b. b Nan b, DATE: 4, t 84 n
(5) REVIEWED BY: DATE:
.fi
- f. Cross-Disciplinary Review By: 'N/R:- [
(6) TEMPORARY APPROVAL (IF NECESSARY):
I By: (SRO) Date:
By: Date:
~
(7) APPROVED BY: Date:
I (8) MISCELLANEOUS:
Reviewed / Approved By: Date:
j Reviewed / Approved By: Date:
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- . 8702180405 870211 PDR '
ADOCK 05000369 .
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Form 34731 (10 81)
(Formerly SPD 10021)
DUKE POWER' COMPANY (1) ID No:PT/0/A/4150/11A '
PROCEDURE PREPARATION Change (s) o to PROCESS RECORD 0 Incorporated
- (2) STATION
- Mccuire (3) PROCEDLTE TITLE: Control Rod Worth Measurement: Rod Swap j (4) PREPARED BY: 5b .
ikQn DATE: 4l4lb4 (5) REVIEVED BY: DATE:
Cross-Disciplinary Review By: N/R:
(6) TEMPORARY APPROVAL (IF NECESSARY):
By: (SRO) Date:
By: Date:
(7) APPROVED BY: Date:
(8) MISCELLANEOUS:
Reviewed / Approved By: Date:
Reviewed / Approved By: Date:
l 5
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1
_ , , . -_ _.. . - _ _ _ . . _ , . _ . . . _ , , . . - . _ m.- . , _ . . -
Form 34634 (4 81) SPD.10012 DUKE POWER COMPANY NUCLEAR SAFETY EVALUATION CHECK LIST (1) STATION: O Chi q.s UNIT: 1 x 2 x 3
,OTHER:
(2) CHECK LIST APPLICABLE TO: -
' - ^ ~ '
~
PT/o/ A/4A M ll g (3) SAFETY EVALUATION - PART A the item to which this evaluation is applicable represents: 1 Yes No Y A change to the station or procedures as described in the FSAR) or a test or experiment not described in the FSART If the answer to the above is "Yes", attach a detailed description of the item being evaluated and an identification of the affected section(s) of the FSAR.
(4) SAFETY EVALUATION - PART B Yes. No X Will this item require a change to the station Technical Specifications?
If the answer to the above is "Yes," identify the specification (s) affected and/or attach the applicable pages(s) with the change (s) indicated.
(5) SAFETY EVALUATION - PART C As a result of the item to which this evaluation is applicable:
Yes No Y Will the probability of an accident previously evaluated in the FSAR be increased?
Yes No X Will the consequences of an accident previously evaluated in the FSAR be increased?
Yes No May the possibility of an accident which is different than any already evaluated in the FSAR be created?
Yes No X Will the probability of a malfunction of equipment important to safety previously evaluated in the FSAR be increased?
Yes No 1 Will the consequences of a malfunction of equipment important to safety previously evaluated in the FSAR be increased?
Yes No X May the possibility of malfunction of equipment important to safety different than any already evaluated in the FSAR be created?
Yes No Will the margin of safety as defined in the bases to any Technical Specification be reduced?
If the answer to any of the preceding is "Yes", an unreviewed safety question is involved. Justify the conclusion that an unreviewed safety question is or is not involved. Attach additional pages as necessary.
(6) PREPARED BY: Nif s 3 Erhby DATE: 4,,4 8 4 (7) REVIEWED BY: DATE: _
(8) Page 1 of
PT/0/A/4150/11A Page 1 of 11 DUKE POWER COMPANY McGUIRE NUCLEAR STATION '
CONTROL R0D WORTH MEASUREMENT:
ROD SWAP 1.0 Purpose 1.1 To verify that the reactivity worth of the Reference RCC bank, as determined through reactivity computer measurement data, is consistent with design predictions.
NOTE: The reference RCC bank is the bank which has the predicted highest reactivity worth of all control and shutdown banks when inserted into an otherwise unrodded core.
1.2 To verify that the reactivity worth of each control and shutdown bank (except the reference bank), as inferred from data following iso-reactivity interchange with the reference bank, is consistent with design predictions.
2.0 References 2.1 Rod Bank Worth Measurements Utilizing Bank Exchange, WCAP-9863-A, May 1982.
2.2 Control Rod Worth Measurement, PT/0/A/4150/11 2.3 Post Refueling Controlling Procedure for Criticality, ZPPT, and Power Escalation Testing, PT/0/A/4150/21 2.4 Technical Specifications 3.4.1.1, 3.10.4, 3.10.3, and 3.10.2.
, 3.0 Time Required 1
3.1 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, 1 engineer 4.0 Prerequisite Tests l Initial /Date
/ 4.1 PT/0/A/4150/10, ARO Boron Endpoint Measurement l 5.0 Test Equipment 5.1 Reactivity Computer (with flux signal from top and bottom of one power range channel).
l
! I l 1
i l r PT/0/A/6150/11A L .
Page 2 of 11 l
L 5.2 Two two pen strip chart recorders. One chart recorder should; have reactivity (on a scale of 10 pcm/ inch, with 0 pcm being ' the -
center of the recorder sheet), and T,y from one loop (on a scale of l'F/ inch for 556'to 558'F set up on one side of the 1 l recorder sheet). The other chart recorder should have flux (on - .
a scale of 0 to the top and of the testing decade in amps) and pressurizer level-(on a scale of 10% level / inch). Chart-speeds-should be 1 inch / min.
NOTE: The specifications in this step may be altered by the Test Coordinator as necessary to accommodtte equipment-limitations, as long as all four signals 'are recorded or trended.
6.0 Limits and Precautions 6.1 The NC system temperature is controlled preferably by steam dump to the condenser. Temperature control may alternatively be affected by steam generator blowdown.
6.2 Normally all reactor coolant pumps should be operating for maximum mixing in the NCS. If all reactor coolant pumps are not operating, the operating pumps should be those on the NCS charging loops (A and/or D). See Tech Spec 3.4.1.1 and 3.10.4 if all reactor coolant pumps are not operating.
6.3 The rod insertion limit and bank overlap sequence will be violated during this test. The operators should be made aware in advance and should anticipate the associated alarms.
Technical Specification 3.10.2 and 3.10.3 allows for this.
6.4 Maintain the flux level in the zero power test range established in Reference 2.4.
i 6.5 Prior to switching the rod control selector switch from one bank to another, verify both groups of the bank (if the bank has two groups) are at the same position in order to avoid group misalignment.
PT/0/A/4150/11A Page 3 of 11 7.0 Required Unit Status Initial /Date
/ 7.1 The unit is just critical in the Startup Mode (Mode 2) at zero power with the flux level i'n the zero power test range established in PT/0/A/4150/21, " Post Refueling Controlling Procedure for Criticality, ZPPT, and Power Escalation Testing."
/ ,
7.2 Record in the log the unit to which this test applies.
8.0 Prerequisite System Conditions NOTE: The following steps may be signed off in any order.
/ 8.1 The reactor coolant system temperature is 557*F +1, -5'F.
NOTE: Maintain NCS temperature within l'F of established temperature during the test.
/ 8.2 The difference between NC toop, pressurizer, and VCT boron I
concentrations is less than 20 ppm. List on Enclosure 13.3.
NOTE: Do not use the boronometer.
/ 8.3 Xenon worth rate is changing less than t.1 pcm/ min.
/ 8.4 Test equipment is set up per Section 5.0.
/ 8.5 All available pressurizer heaters are on as needed, in order to improve mixing by maximizing the pressurizer spray.
l / 8.6 All control and shutdown banks are fully withdrawn except Control Bank D which is at a position greater than about 215 steps withdrawn.
/ 8.7 The Rod Control Selector switch is in Bank Select Mode set on Control Bank D.
/ 8.8 Complete Enclosure 13.1 with the predicted data. See Enclosure 13.9 for an explanation of nomenclature used in this test.
/ 8.9 Trend the points listed in Enclosure 13.2 every 15 minutes or l less on the OAC.
i l 9.0 Test Method l The RCC bank with the highest predicted value of reactivity worth is I
measured using the dilution technique per PT/0/A/4150/11. This bank serves as a reference. The integral worth of the remaining RCC banks is implied from the difference in the critical rod position of the reference bank with and without the insertion of bank being tested.
The implied integral worths are then compared to predicted rod worths.
\
- PT/0/A/4150/11A Piga 4 of 11 10.0 Data Required 10.1 The following conditions for the approximate time of criticality before and after each bank exchange, recorded on Enclosure 13.5:
Time NCS Tavg NCS Boron Concentration Just critical height of reference bank 10.2 Nuclear design predictions on Enclosure 13.1.
10.3 Boron concentration information for the NCS and pressurizer on Enclosure 13.3.
10.4 A copy of the rod positions and rod worths for the reference bank from Enclosure 13.1 of PT/0/A/4150/11 when this test is complete.
10.5 The calculated, implied integral worth (Wf) for each RCC bank except the reference bank. List data on Enclosure 13.7.
10.6 The percent lifference between inferred and predicted worths for each individual RCC banks (c g ) and for the sum of all banks (c2 )
on Enclosure 13.8.
11.0 Acceptance Criteria 11.1 The absolute value of the percent difference between measured and predicted integral worth for the reference bank is $15%
(from Enclosure 13.8 (cy )g $15%).
11.2 From Enclosure 13.8, the calculated value c 510%.
2 11.3 For all RCC banks cther than the reference bank; either:
a) From Enclosure 13.8, c 530% for each bank or 3
x \
b) Wf- $200 pcm for each bank, whichever is greater.
.g. . , -
Y ji PT/0/A/4150/11A Page.5 of 11 1
12.0 Procedure _
4 Initial /Date l- NOTE: See Enclosure 13.9 for an explanation of all nomenclature used-i in.this test.
/ 12.1 Request NCS and Pressurizer samples to be_taken.at approximately
} 15-20 minute intervals until all banks ~are measured.
NOTE: The Boronometer may_not be used for NC' loop-concentrations.
l NOTE: Notify Chemistry that the unused portions of the samples -
4
- should be retained in appropriately labeled containers, for l possible future re-analysis, until all acceptance criteria are met or as specified by- the test _ coordinator.
i 12.2 Measure the integral reactivity worth of the reference bank =as-l follows:
NOTE: The reference bank is defined as that bank which is predicted to have the highest worth, of all control and shutdown
{
banks, when inserted into an otherwise un-rodded core (see Enclosure 13.1 for the identity-of this bank). 'In this procedure, the banks will be referred to by the bank number, the
- reference bank being number-1. If the reference bank.is j currently positioned at less than 228 steps withdrawn (i.e., if j it is Control Bank D), continue with step 12.2.5.. Mark steps
- 12.2.1 to 12.2.4 NA. If the reference bank is positioned at 228 1
l steps withdrawn, continue on at Step 12.2.1.
j / 12.2.1 Insert the reference bank 1 until the indicated reactivity is approximately -10 pcm. .,
i
/ 12.2.2 Withdraw the bank inserted below 228 until the 4
indicated reactivity is approximately +10 pcm.
/ 12.2.3 Repeat steps 12.2.1 and 12.2.2 until the previously inserted bank is fully withdrawn.
/ 12.2.4 Adjust the position of the reference bank 1 until the i reactor is just critical. Record this position in the test log.
l
/ 12.2.5 Perform Control Rod Worth Measurement per f PT/0/A/4150/11 on the reference Bank 1.
L i l i.
r-- p r ( ,
, PT/0/A/4150/11A
, Page 6 of 11'
/' 12.2.6 :
Attach a completed copy of PT/0/A/4150/11 Enclosure 13.1 to this procedure.
/ .12.2.7 Record the total reference bank' rod worth from PT/0/A/4150/11 Enclosure 13.1 on Enclosure 13.7 and I
13.8 as shown.
/ 12.2.8 Ensure the reactor-is critical at the same reference bank position as was obtained at the end of PT/0/A/4150/11.
12.4 Measure the reactivity worth of the remaining control and I
shutdown banks, relative to the reference Bank 1, as follows:
NOTE: The relative worth of each RCC bank is obtained from the critical position of the reference bank (initially nearly fully _.
inserted) after full insertion of the bank being measured (initially fully withdrawn), at constant RCS boron Concentration.
NOTE: Perform rod swap measurements on Control Bank D~1ast if possible.
/ 12.4.1 Record the initial critical bank configuration on (J) Enclosure 13.4 and 13.5 for the reference bank. Also 3 4 5 6 7 record the initial NC boron concentration and average.
T,yg on Enclosure 13.5.
8 9
/ 12.4.2 Insert bank 2 (identify this bank on top of Enclosure j (J) 13.5; i.e., Bank 2 is S/D E or Cont. B, etc.) until l
3 4 5 6 7 the reactivity indicated by the reactivity computer is i
approximately -20 pcm.
I 8 9
/ 12.4.3 Withdraw the reference Bank 1 until the indicated (J) _ reactivity is approximately +20 pcm.
3 4 5 6 7 NOTE: Maintain the flux within the zero power test range established in Reference 2.4.
8 9 I
W_____
i
, PT/0/A/4150/11A
., -P2gr 7 of 11;
-/ 12.4.4 Repeat Steps 12.4.2 and 12.4.3 until bank 2 is fully (J) inserted. Keep the indicated reactivity within 3 4 5 6 7. t20 pcm.
8 9
/ 12.4.5 Adjust the position of reference bank 1 until the (J) reactor is just critical. Record the final' critical 3 4 5 6 7 configuration data on Enclosure 13.5. Also record the final NC Boron Concentration and average T,y on 8 9 Enclosure 13.5.
NOTE: If time permits, measure the differential reactivity worth of reference Bank I with the reactivity computer by sequential bank insertions and withdrawals around the critical position. Record information in the test log if this is performed.
(Analysis may be performed at a later time.)
/ 12.4.6 Insert the reference Bank 1 until the indicated (J) reactivity is approximately -20 pcm.
3 4 5 6 7 8 9-
/ 12.4.7 Withdraw bank 2 until the indicated reactivity is (J) approximately +20 pcm.
3 4 5 6 7 8 9
/ 12.4.8 Repeat Steps 12.4.6 and 12.4.7 until bank 2 is fully (J) withdrawn.
3 4 5 6 7 8 9
/ 12.4.9 Adjust the position of reference Bank 1 until the (J) .ceactor is just critical. Record the critical 3 4 5 6 7 configuration data on Enclosures 13.4 and 13.5.
8 9
t PT/0/A/4150/11A Piga 8 of 11
/ 12.4.10 Repeat Steps 12.4.2 through 12.4.9 for the remaining, unmeasured control and shutdown banks numbered 3 through 9 instead of bank 2. The banks may be-measured in any order except that Control Bank D should be measured last. Identify the bank beside the bank number on Enclosures 13.4, 13.6, 13.7 and 13.8.
NOTE: If a Control Bank D-in ITC measurement is to be made, perform Steps 12.5, 12.5.1 and 12.5.2. If not, proceed directly to Step 12.5.3 and mark Steps 12.5, 12.5.1 and 12.5.2 as N/A.
/ 12.5 After all rod measurements have been made, again swap Control Bank D for the reference bank 1.
/ 12.5.1 By NC Boron Adjustment, reposition Control Bank D and the reference Bank 1 such that Control Bank D is almost fully inserted into the core and the reference bank 1 fully withdrawn from the core. (It is acceptable to have Control Bank D fully inserted and the reference bank 1 almost fully withdrawn.) 9
/ 12.5.2 Perform PT/0/A/4150/12B, Moderator Temperature Coefficient of Reactivity During Startup Mode.
/ 12.5.3 By NC boron adjustment, reposition control and shutdown banks to the desired normal operating configuration of Control Bank D at about 215 steps aitFirawn. Do not go out of Bank Control. l 12.6 Perform the following steps once Control Bank D is about 215 steps withdrawn.
/ 12.6.1 Go to the Master Cycler Cabinet and reset the Bank i i
Overlap Digital Counter to 000 by pushing the reset I button.
/ 12.6.2 Reset the Bank overlap Counter to 345 plus the present Control Bank D position by pushing the button to count up from 000 to the desired value (one push of the button is one digit change on the display).
/ 12.6.3 Place rod control to manual.
NOTE: This completes the data acquisition section of this test.'
/ 12.7 If boron samples are no longer needed to be gathered,' notify Chemistry.
PT/0/A/4150/11A Page 9 of 11
/
/
/ 12.8 ' Compute the average reference bank critical position on Enclosure 13.4.
12.9 Compute the inferred worth for each control and shutdown bank (except the reference bank 1) as'follows:
/ 12.9.1 Using the data from Enclosure 13.4, and the worth measurement data for the reference bank from Enclosure-13.1 of PT/0/A/4150/11, compute the value of.(ap g
) as described below.
3 (h"), avg (Api )x = k g o
where:
(h") avg V is the measured integral worth R
o
- of the referegce bank from O steps to (h from Enclosure 13.I)Of*"8 PT/0/A/4150/11.
- and (h"), avg is the average of the initial i
and return critical positions of the reference bank before and after interchange with bank x as given on Enclosure 13.4 I
Fill'in all blanks and complete the calculations on Enclosure 13.4 in the appropriate column.
4 i
i i
.-
- PT/0/A/4150/11A
. Page 10'of 11 4
/ 12.9.2 Using the data from Enclosure 13.5, the worth measurement data for the reference bank from Enclosure 13.1 of PT/0/A/4150/11 and the design data of-Enclosure 13.1, compute the value of ax (OP2 )x as described below:
~
- l. '
228 0
x(AP2 )x * "x h M
x where: 228 W g is the measured integqal worth of the h
reference bank from h' to the fully
- - withdrawn position frEm PT/0/A/4150/11, Enclosure 13.1.
e M
h is the measured critical position of the x
reference bank after interchange with bank x from Enclosure 13.5.
j and 0
is a correction factor from Enclosure 13.1 to account for the influence of bank x on the worth of the' reference bank.
Fill in all blanks and complete the calculations on Enclosure 13.6.
/ 12.9.3 Compute the inferred integral worth of each bank x, Wf,asindicatedonEnclosure13.7.
I d
i 1
.(
PT/0/A/4150/11A
.Pcga.11 of 11
./- 12.9.4 Compute the-percent difference between inferred and.
predicted worths for-each individual RCC. bank and the sumofa,11 banks;describedbelow.
wI.WP (c1 ) = x 100, in %
x
,~
~
7 N N I
I Wg -I i"I I*I x 100, in %.
8 _
2- N P
I W i
i=1
}
Fill in all blanks and summarize the calculations on Enclosure 13.8.
/ 12.10 Verify all acceptance criteria have been met.
/ 12.11 Inform Chemistry to discard the Chemistry samples they have saved, once all results of this test are acceptable.
13.0 Enclosures 13.1 Nuclear Design Predictions for Rod Interchange Measurements 13.2 PA0 Data 13.3 Log of Boron Concentrations 13.4 Calculation of (ap g )x 13.5 Critical Configuration Data 13.6 Calculation of a g(ap )*
2 13.7 Calculation of Inferred Integral Bank Worths 13.8 Comparison of Inferred Bank Worths with Design Predictions 13.9 Nomenclature
i
, , . PT/0/A/4150/11A l - Psga 1 of'1 Control Rod Worth Measurement: Rod Swap Enclosure 13.1-p Nuclear Design Predictions for Rod Interchange Measurements McGuire Unit Cycle Bank Bank W h a No. [dentity. ..
j (x) + (pcm) (steps)
(a) 1 (Reference) 2 3
i I
4 l
5 6
l l
7 l
- 8
! 9 l
l (a) Reference bank - the bank with the highest predicted integral worth.
(b) Reference bank critical position after interchange with bank x.
(c) Ratio of integral worth of the reference bank from h tox the fully withdrawn position with and without x in the core.
+ Control Bank C, Shut %-n Bank E, etc. I NOTE: See Enclosure 13.9 ;or a complete listing of nomenclature used in this test.
l Recorded By Date This data came from (list source):
.- . .. .. ~ ,
3 -'..
-PT/0/A/4150/11A.
, ..Pagt l'6fL1' '
i.
Control Rod Worth Measurement: LRod Swap-Enclosure 13.2 PA0 Data
.A0821 Boric Acid Makeup Blended Flow l P1390 Control' Bank-A Position' P1391 Control Bank B Position P1392 Control-Bank C Position
.P1393 Control Bank D Position P1546 Shtudown Bank A Position P1547 ' Shutdown Bank B Position-P1548 Shutdown Bank C Position P1549 . Shutdown Bank D Position :
P1550 'hhutdownBankEPosition A0632 Intermediate Range Channel N35 A0633 Intermediate Range' Channel N36 A0819 Loop A T,y ,
A0825 Loop B T,y A0831 Loop C T,y A0837 Loop D T,y A1058 Loop A AT A1070 Loop B AT i
A1082 Loop C AT !
A1094 Loop D AT A1118 Pressurizer Pressure A0602 Boronometer A1124 Pressurizer Level
! P1461 NC Avg. T,yg P0828 Avg. Incore T/C Temperature A0603 Boric Acid Flow to Blender i A1064 NC Loop A NR Cold Leg Temperature l A1076 NC Loop B NR Cold Leg Temperature A1088 NC Loop C NR Cold Leg Temperature I A1100 NC Loop D NR Cold Leg Temperature l
I l
- PT/0/A/4150/11A Page 1 of 1 Control Rod Worth Measurement: Rod Swap Enclosure 13.3 Log of Boron Concentrations NCS Boron Concentrations Time Recorded Date Sample Taken +VCT NCS Press. Comments By McGuire Unit Cycle NOTE: VCT sample needed only once at start of the test. Mark this block as N/A l after this. I l
l l
- y 1
[- . PT/0/A/4150/11A
- Page,1 of 1 Control Rod Worth Measurement: . Rod Swap Enclosure 13.4 Calculation of-(apg ),
Unit Cycle .,7, I Date .l l ++
Bank (x) (h ), . (steps) (opg ),
No. Ident. + Initial
- Return ** Average (pcm) 2 3 -;
4 5
6 7 ,
^
8 /
9 ,
s ,
+ Step 12.4.1 - reference bank initial critical position. r -
!
- Step 12.4.9 - reference bank final critical position upon exchange'witit bank x (bank x if out of core). *
+'2t.ip 12.9.1 ** Step 12.8 '
1;ecorded By ,
T 9
s
. .W
/ , .
-) .
i t
PT/0/A/4150/1IA Page 1 of I .
l Unit Cont rol Rod Worth Heasurement: Rod Swap l Cycle Euclosure 13.5 jDate Critical Contiguration Data NC NC Reference Bank RCC Bank Positions l Time T Boron Position (steps)
Conc.
(h")
(h")#
No. 2 No. 3 No. 4 No. 5 No. 6 No. 7 No. 8' No. 9 l (hrf.) (*F) (ppm)
( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )
+ N/A 228 228 228 228 228 228 228 228 N/A
- 0 228 _228 228 228 228 228
_ 22 8_ __
- N/A 228 228 228 228 228 228 228 228 ^
N/A
- 226 <
O_ 228 228_ 228 228 - 228 228
- 228 228 228 228 228 228 228 N/A _. _ _ __228 N/A
- 228 228 0 228 228 228 228 228
- N/A 228 228 ' 228-- 228 228 228 228 228 -
~
N/A
- 228 228 228 0 228 228 228 228
- N/A 228 228 228 228 228 228 228 228
~
_ N/A '
- 228 228 228- 228 0 228 228 228 -
N/A_ 228 228 228 228 228 228 228' 228 N/A
- 228 228 228 228 228 0 228,
" 2 2_8_ _
- N/A 228 228 228 228 228 228 228 228 N/A
- 228 228 228 228 228 228 0 228
- 228 228 228 228 228 228 228 228
_g N/A .
f N/A
- 228 228 228 228 228 228 228 0
]-
i ** N/A 228 228 228 228 228 228 228 228 CStep 12.4.1 - (nitial critical bank position
- Step 12.4.5 - final critical bank position ** Step 12.4.9 jHeccrddBy
^
~
l ,
- - ~ ~
1.
. ; 's PT/0/A/4150/11A
- 's Page 1 of 1 j~' Control Rod Worth Measurement: Rod Swap Enclosure 13.6 Calculation of aX(ap 2)X Unit Cycle tJ Date
's (1)- (2) (1) x (2) f E
+" F ~
228 Bank (x) h kM
- x R M
' h, a a (Ap )
No. Ident. steps (pcm) (pcm)
I 2
'3 >
, '4 i
l 5 I
7 i l
8 i
.I 9 ,
i l
l
+from Enclosure 13.5
- from Enclosure 13.1 Recorded By I .
~ -,n -
- y. -,n-n- m
, - . 'PT/0/A/4150/11A
. Peg 2 1 of-1 Control Rod Worth Measurement: Rod Swap Enclosure 13.7 Calculation of Inferred Integral Bank Worths Unit Cycle Step 12.2.7 W" =. .pcm Date '
+ * (a) 1 Bank (x) .( ap ) w 3 ax(OP2 )x x~
No. Ident. (pcm) (pcm) (pcm)~
. 2 1
3 4
5 6
7 8
9
't I
(a) W =W - (ap})g - a g(ap2)x -l
+from Enclosure 13.4 1
- from Enclosure 13.6
, Recorded by s
--r ---
. , my v'+' r F
.i
., PT/0/A/4150/11A
.
- Pags 1 of 1 Control Rod Worth Measurement: Rod Swap ,
Enclosure 13.8 Comparison of Inferred Bank Worths With Design Predictions Unit Cycle Date Bank (x) W
++f -
(cy ),
No. Ident. (pcm) (pcm) (%)
1 +
reference 2
3 4
5 6
7 8
9 Wf(pcm) (pcm) c 2
-(I)
+ Step 12.2.7: Record the measured worth of tte reference bank here.
- from Enclosure 13.1
++from Enclosure 13.7 Recorded By
t a o : PT/0/A/4150/11A :
- Page 1 of-1 Control Rod Worth Measurement: Rod Swap
Enclosure:
13.9 Nomenclature
- 1. k Predicted reactivity worth of each control and shutdown bink '
when inserted individually into an otherwise unrodded core.
- 2. W I The calculated, implied rod' bank worths of b'ank'x-from rod.
x- -
exchange
- 3. ( Measured rod bank worth of reference bank' A correction factor which' accounts .for the effect of bank x .
~
- 4. a .
on the partial integral worth of.the reference bank,' equal tp.
the ratio of the integral worth of the reference bank-from h to the fully withdrawn position with and without x in the ,
Core. '
- 5. (Ap), The measured integral. worth of the reference bank from.h" to the fully withdrawn position.
- 6. The predicted critical position of the reference bank after h*P interchange with bank x starting with reference bank at 0, * "
bank x fully withdrawn.
- 7. h"* The measured critical position of the; reference bank after interchange with bank x.
i-
-(h")o x avg
- 8. k * * "#
R * ****"#h I#* ' * #* #*"#* "" "
- l. ,o O steps to (h,), ,y .
- 9. (hx) avg Is the average of the initial and returu critical positions of the reference bank'before and after' interchange with bank x. .
~ ~
228
- 10. Is the measured integral worth.of the. reference bank from h"
=
h"
.x to the fully eithdrawn position.
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-l l
'l 4
i 5