ML20141D860

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Monthly Operating Repts for Apr 1997 for Zion Station Units 1 & 2
ML20141D860
Person / Time
Site: Zion  File:ZionSolutions icon.png
Issue date: 04/30/1997
From: Cygan J, Starkey R
COMMONWEALTH EDISON CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9705200220
Download: ML20141D860 (13)
v • d • e


Text

,

Commonwealth raivm Osmpany

  • Zion Generatmg Na3'u m s,

** 101 Shiloh Ihmter;ird

_ - Zion, !!. (wM 2797

> Tel H n* 7 6208 4 May 15, 1997 '

Nuclear Regulatory Commission Document Control Desk Washington. DC 20555  :

Dear Sir:

Attached is the April Operating Status Report.

NII K S. Starkey Plant General Manager Zion Station RSS/jlc i Enclosure cc: Regulatory Assurance USNRC Document Control f)

.H. Keiser A. B. Beach (NRC)

D. Farrar D. R. Eggett

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INPO Div. of Enforcement Health State of Illinois /IDNS F. Yost NRC Inspector Zion J IDNS Inspector. Zion  ;

Operating Engrs.

C. Y. Shiraki Master File 9705200220 970430 I PDR ADOCK 05000295 ~

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OPERATING DATA REPORT DOCKET N0. 50-295 DATE 5/15/97 i COMPLETED BY J. CYGAN TELEPHONE (847)746-2084 i X3169 1

OPERATING STATUS

1. Unit Name: Zion Unit 1 i
2. Reporting Period: 0000 040197 to 2400 043097 Notes  :

. 3. Licensed Thermal Power (MWt): 3250

.4. Nameplate Rating (Gross MWe): 1085

5. - Design Electrical Rating (Net MWe):  :.040  !

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6. Maximum Dependable Capacity (Gross MWe): '.085
7. Maximum Dependable Capacity (Net MWe): 3040
8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report. Give Reasons: N/A ,
9. Power Level To Which Restricted, if Any (Net MWe): N/A
10. Reasons For Restrictions. If Any: N/A  ;

This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 719.0* 2.879 0 204.527.0
12. Number Of Hours Reactor Was Critical 00.0 1.238.3 138.741.3
13. Reactor Reserve Shutdown Hours 00.0 0.0 2.612.8
14. Hours Generator On-Line 00.0 1.238.3 134.804.2
15. Unit Reserve Shutdown Hours 00 0 0.0 0.0
16. Gross Thermal Energy Generated (MWH) 00.0 3.442.179.0 398.004.120
17. Gross Electrical Energy Generated (FfWH) 00.0 1.137.150.0 129.673.297
18. Net Electrical Energy Generated (MWH) 00.0 1 079.324.0 123.571.046  ;
19. Unit Service Factor 00.0 43.0 65.9 i
20. Unit Availability Factor 00.0 43.0 65.9
21. Unit Capacity Factor (Using MDC Net) 00.0 36.0 58.1
22. Unit Capacity Factor (Using DER Net) 00.0 36.0 58.1
23. Unit Forced Outage Rate 00.0 00.0 15.8
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
25. If Shut Down At End Of Report Period. Estimated Date of Startup: No estimated date 26, Units In Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION
  • Minus I hour for time change.

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OPERATING DATA REPORT j DOCKET NO. 50-304 DATE 5/15/97 COMPLETED BY J. CYGAN TELEPHONE (847)746-2084 '

X3169  ;

OPERATING STATUS

1. Unit Name: Zion Unit 2  !
2. Reporting Period: 0000 040197 to 2400 043097 Notes ,
3. Licensed Thermal Power (MWt): 3250  ;

-4. Nameplate Rating (Gross MWe): 1085

5. Design Electrical Rating (Net MWe): 1040  ;
6. Maximum Dependable Capacity (Gross MWe): 1085 i
7. Maximum Dependable Capacity (Net MWe): L040 ,
8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give i Reasons: N/A  ;
9. Power Level To Which Restricted. If Any (Net MWe): N/A ,
10. Reasons For Restrictions. If Any: N/A This Month Yr-to-Date Cumulative ,
11. Hours In Reporting Period 719.0* 2.879.0 198.240.0
12. Number Of Hours Reactor Was Critical 00.0 00.0 138.378.7
13. Reactor Reserve Shutdown Hours 00.0 00.0 226.1
14. Hours Generator On-Line 00.0 00.0 135.098.8
15. Unit Reserve Shutdown Hours 00.0 00.0 0.0 l
16. Gross Thermal Energy Generated (MWH) 00.0 00.0 402.647.369
17. Gross Electrical Energy Generated (MWH) 00.0 00.0 130.102.951  ;
18. Net Electrical Energy Generated (MWH) 00.0 00.0 124.095.088 l
19. Unit Service Factor 00.0 00.0 68.1  :
20. Unit Availability Factor 00.0 00.0 68. L_
21. Unit Capacity Factor (Using MDC Net) 00.0 00.0 60.2 l
22. Unit Capacity Factor (Using DER Net) 00.0 00.0 60.2 i
23. Unit Forced Outage Rate 00.0 00.0 13.3
24. Shutdowns Scheduled Over Next 6 Months (Type. Date, and Duration of Each):
25. If Shut Down At End Of Report Period. Estimated Date of Startup: No estimated date
26. Units In Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION .
  • Minue 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> for time change.

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UNIT SHUTDOWNS AND POWER REDUCTIONS .

DOCKET NO. 50-295 .

UNIT NAME Zion Unit 1 .

DATE 5/15/97 COMPLETED BY J. CYGAN TELEPHONE (847) 746-2084 x3169 REPORT MONTH April 1997 1 Duration 2 Method of Licensee System Component Cause & Corrective No. Date Type (Hours) Reason Shutting Event Code 4 Code 5 Action to Down 3 Report # Prevent Recurrence Reactor 4 04/01/97 5 **719.0 *H 1 97-005 Unit 1 Remained Off-Line For The Entire Month For Maintenance Outage Z1M06.

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  • H - Please refer to column on right (Cause & Corrective Actions)
    • Minus 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> for time change.

1 2 3 4 F: Forced Reason: Method Exhibit G - Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Trip Entry Sheets for Licensee C-Refueling 3-Auto Trip Event Report (LER) File D-Regulatory Restriction 4-Continued (NUREG-0161)

E-Operator Training & Licensee Examination 5-Reduced Load F-Administrative 5 G-Operational Error (Explain) Exhibit 1 - Same Source H-Other (Explain)

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UNIT SHUTDOWNS AND POWER REDUCTIONS -

DOCKET NO. 50-304  :~

UNIT NAME Zion Unit 2 .

DATE 5/15/97 COMPLETED BY J. CYGAN TELEPHONE (847) 746-2084 x3169 REPORT MONTH Acril 1997 1 Duration 2 Method of Licensee System Component Cause & Corrective No. Date Type (Hours) Reason Shutting Event Code 4 Code 5 Action to Down 3 Report # Prevent Recurrence Reactor 7 04/01/97 5 719.0* C 1 Unit 2 Remained Off-Line For The Entire Month For The Continuation Of Refueling Outage Z2R14.

  • Minue 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> for time change.

1 2 3 4 F: Forced Reason: Methud Exhibit G - Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Trip Entry Sheets for Licensee C-Refueling 3-Auto Trip Event Report (LER) File D-Regulatory Restriction 4-Continued (NUREG-0161)

E-Operator Training & Licensee Examination 5-Reduced Load F-Administrative 5 G-Operational Error (Explain) Exhibit 1 - Same Source H-Other (Explain)

., "'. j AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-295 UNIT Z1on Unit 1 DATE 5/15/97 COMPLETED BY J. CYGAN TELEPHONE (847) 746-2084  ;

x3169 MONTH Aoril 1997 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL j' (MWe-Net) (MWe-Net) 1 -7 17 -7 2 -7 18 -7 3 -7 19 -7 4 -7 20 -7 5 -7 21 -7 6 -7 22 -7 7 -7 23 -7 8 -7 24 -7 i 9 -7 25 -7 10 -7 26 -7 t 11 -7 27 -7 12 -7 28 -7 13 -7 29 -7 14 -7 30 -7 15 -7 31 16 -7 INSTRUCTIONS On this format, list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt.

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... l AVERAGE DAILY UNIT POWER LEVEL )

l DOCKET N0. 50-304 UNIT Zion Unit 2 '

DATE 5/16/97 i COMPLETED BY J. CYGAN TELEPHONE (847) 746-2084 x3169 i Anril 1997

. DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 -7 17 -6 2 -7 18 -7 -

3 -7 19 -7 1

4 -7 20 -7 .

! 5 -7 21 -7 >

l 6 -7 22 -7 7 -7 23 -/

8 -7 24 -7 9 -7 25 -7 10 -7 26 -7 11 -7 27 -7

, 12 -7 28 -7 13 -7 29 -7 ,

14 -7 30 -7 15 -6 31 16 '6 INSTRUCTIONS l On this format list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt. .

M

Aoril 1997

SUMMARY

OF OPERATING EXPERIENCE UNIT 1 Unit 1 began April off-line for a continuation of Maintenance Outage (Z1M06) and remained off-line for the entire reporting period. There is no scheduled date for. Unit 1 to be back on-line.

UN{T 2 Unit 2 began April off-line for a continuation of Refueling Outage (Z2R14) and remained off-line for the entire reporting period. There is no scheduled date for Unit 2 to be back on-line.

April 1997 MAJOR MAINTENANCE E0VIPMENT NAME WORK PERFORMc0 l

(UNIT 1)

IC CW PP Inspect / Repair 005: 04/28/97

  • IC SW PP Inspect / Repair 005: 04/28/97 l

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COMMENT: NO RETURN TO SERVICE DATE

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April 1997 MAJOR MAINTENANCE EQUIPMENT NAME WORK PERFORMED (UNIT 2)

! 2B CW PP Breaker Overhaul / Inspection 005: 04/13/97

  • 2A C/CB PP Cleaning / Inspection 00S: 04/26/97
  • l 2C CS PP Starting Solenold Changeout COS: 04/29/97 *

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COMMENT: NO RETURN TO SERVICE DATE

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REFUELING INFORMATION REQUEST OVESTIONS; i 3

1. Name of facility. l I
2. Scheduled date for next refueling shutdown. -

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~3. Scheduled date for restart following refueling.

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4. Will refueling or resumption of operation thereafter require a technical f specification change or other license amendment?

If answer _is yes, what, in general, will these be?

If answer is no, has the reload fuel design and core configuration been i reviewed by your Plant Safety Review Committee to determine whet.her any unreviewed safety questions are associated with the core reload (Ref 10  :

CFR Section 50.59)? l If no such review has taken place, when is it scheduled?

5. Scheduled date(s) for submitting proposed licensing action and supporting information.

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6. Important licensing considerations associated with refuelvig, e.g., new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures.
7. The number of fuel assemblies: (a) in the core and (b) in the spent fuel storage pool.
8. The present licensed spent fuel pool storage ca)acity and the size of any  !

increase in licensed storage capacity that has .]een requested or is l planned, in the number of fuel assemblies.

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9. The projected date of the last refueling that can be discharged to the  !

spent fuel pool assuming the present licensed capacity. j l

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REFUELING INFORMATION RE0 VEST UNIT 1 - ANSWERS-

1. Zion Unit 1.
2. Cycle 15 is scheduled to shutdown September 6,1997 for refueling.
3. Cycle 16 is scheduled to start up November 5, 1997.
4. The following License Amendments are required to allow resumption of operation after Refueling Outage Z1R15.

e Increase Steam Generator plugging limit. Required to ensure Unit derating will not be required based on Steam Generator plugging.

Required to allow additional sleeving options to minimize plugging.

e Authorize new F* limit on tube re-roll and new EF* re-roll limit.

Recuired to support increased plugging limit. Required to allow adcitional re-roll options to minimize plugging.

The Reload Safety Analysis for cycle 16 will be completed during Z1R15,

5. Projected submittal of License Amendments: June-July 1997.
6. Not applicable.
7. The number of fuel assemblies (a) in the core is 0, and (b) in the spent fuel storage pool from Zion Unit 1 is 1125.
8. The present licensed spent fuel pool storage capacity (shared with Zion Unit 2) is 3012 fuel assemblies. Of these 3012 storage locations.11 are unavailable and 239 are inaccessible pending completion of the Offset Tool Modification (M22-90-0-008A C).
9. The projected date of the last refueling than can be discharged to the spent fuel pool, assuming the present licensed capacity of 3012 locations (11 out of 3012 are unavailable) is April 2006 (from Z1R21) based on the 1997 Projected Comed Overhaul Schedule. This assumes the Offset Tool Modification (M22-90-0-008A, C) will be installed prior to June 2003.

This projected date is subject to change based on outage durations or Overhaul Schedule changes.

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REFUELING INFORMATION REQUEST UNIT 2 - ANSWERS:

1. Zion Unit 2.
2. Cycle 14 shut <10wn September 19. 1996 for refueling.
3. Cycle 15 has no scheduled date for start up.
4. There are no outstanding License Aniendments required for startup of Unit 2 following Refueling Outage Z2R14.
5. There are no outstanding proposed License Amendments required for startup of Unit 2 following Refueling Outage Z2R14.
6. New fuel reloaded into Unit 2 Cycle 15 core incorporates the following design changes:
  • Selected standard Integral Fuel Burnable Absorber (IFBA) patterns have been updated following a Westinghouse Core Engineering investigation of peripheral IFBA rod loading within the fuel assembly. The net effect of this change is to achieve the most efficient absorber orientation at Beginning of Life (BOL) and for burnups through 5000 MWD /MTU. These patterns provide self-limiting features that mitigate the extent of DNB propagation. In addition, these IFBA patterns provide significant peaking factor and reactivity holddown benefits.

e IFBA rods will have a nominal B-10 enrichment loading with a reduction in backfill pressure from 200 to 100 psig. The nominal B-10 loading 1s 1.77 mg/ inch. Rod internal gas pressure has an effect on two of the fuel rod design criteria that are evaluated for the reload: Rod internal pressure and clad stress criteria.

The Zion Unit 2 Cycle Specific fuel design analysis has been performed and has demonstrated that the design criteria were met.

7. The number of fuel assemblies 4 (a) in the core is 193 and (b) in the spent fuel storage pool from Zion Unit 2 is 984.
8. The present licensed spent fuel pool storage capacity (shared with Zion Unit 1) is 3012 fuel assemblies. Of these 3012 storage locations. 11 are unavailable and 239 are inaccessible pending completion of the Offset Tool Modification (M22-90-0-008A. C).
9. The projected date of the last refueling that can be discharged to the spent fuel pool, assuming the present licensed capacity of 3012 locations

'll out of 3012 are unavailable) is April 2006 (from Z1R21) based on the 1996 Projected Comed Overhaul Schedule. This assumes the Offset Tool Modification (M22-90-0-008A. C) will be installed prior to June 2003.

This projected date is subject to change based on outage durations or Overhaul Schedule changes.

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