ML20056D688

Monthly Operating Repts for Jul 1993 for Zion Generating Station,Units 1 & 2

ML20056D688
Person / Time
Site:	Zion  File:ZionSolutions icon.png
Issue date:	07/31/1993
From:	Broccolo E, Cygan J COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ZAD-93-008, ZAD-93-8, NUDOCS 9308170324
Download: ML20056D688 (14)

Text

a Commonwealth Edison Zion Generating Station Shiloh Blvd. & Lake Michigan Zion,!!hnois 60099 Telephone 708 / 746-2084 August 12. 1993 ZAD-93-008 Nuclear Regulatory Commission Document Control Desk Washington. DC 20555

Dear Sir:

Attached is the July 1993 Dperating Status Report.

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A. Broccolo Station Manager Zion Station TPJ/jlc l

Enclosure l

cc:

Regulatory Assurance USNRC Document Control M. Wallace A. B. Davis (NRC)

T. Rieck D. Farrar D. R. Eggett INPD Div. of Eng. Health

-l State of Illinois F. Yost NRC Inspector. Zion Dperating Engrs.

C. Y. Shiraki - Fax Master File I

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I 9308170324 930731 i

ZCLERK-5 (1)

PDR ADDCK 05000295

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t OPERATING DATA REPORT DOCKET NO.

50-295 DATE 08/12/93 i

COMPLETED BY J. Cyaan 1

TELEPHONE (708)746-2084 X3169 OPERATING STATUS j

1.

Unit Name:

Zion Unit 1 2.

Reporting Period: 0000 070193 to 2400 073193 Notes l

3.

Licensed Thermal Power (MWt):

3250 t

4.

Nameplate Rating (Gross MWe):

1085 t

5.

Design Electrical Rating (Net MWe):

1040 t

6.

Maximum Dependable Capacity (Gross MWe): 1085 i

7.

Maximum Dependable Capacity (Net MWe):

1040 i

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 i

10.

Reasons For Restrictions. If Any:

N/A j

This Month Yr-to-Date

' Cumulative

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11.

Hours in Reporting Period 744.0 5.087.0 171.671.0 12.

Number Of Hours Reactor Was Critical 698.3 5.04).3 117.473.8

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13.

Reactor Reserve Shutdown Hours 0.0 0.0 2.621.8' 14.

Hours Generator On-Line 679.6 5.022.6 113.978.7

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Unit Reserve Shutdown Hours 0.0 0.0

0. 0 -

16.

Gross Thermal Energy Generated (MWH) 2.104.437.0 15.906.867.0 332.640.158 9

17.

Gross Electrical Energy Generated (MWH) 701.204.0 5.328.682.0 107.892.696

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Net Electrical Energy Generated (MWH) 673.615.0 5.132.916.0 102.658.510

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Unit Service Factor 91.3 98.7 66.3 20.

Unit Availability Factor 91.3 98.7 66.3 l

21.

Unit Capacity Factor (Using MDC Net) 87.1 97.0 57.5 22.

Unit Capacity Factor (Using DER Net) 87.1 97.0 57.5 23.

Unit Forced Outage Rate 8.7 1.3 16.1 24 Shutdowns Scheduled Over Next 6 Months (Type. Date, and Duration of Each):

Scheduled Shutdown for Refuelina Outace 10/21/93' Startuo scheduled for 3/31/94

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If Shut Down At End Of Report Period. Estimated Date of Startupi 26.

Units In Test Status (Prior to Commercial Operation):

Forecast.

Achiev.ed.

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INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION i

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ZCLERK-5 (2).

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la OPERATING DATA REPORT DOCKET NO.

50-295 DATE 08/12/93

-COMPLETED BY J. Cvoan TELEPHONE (708)746-2084 X3169 i

OPERATING STATUS 1.

Unit Name:

Zion Unit 2

'I 2..

Reporting Period: 0000 070193 to 2400 073193 Notes 1

3.

Licensed Thermal Power (MWt):

3250 4.

Nameplate Rating (Gross MWe):

1085 i

5.

Design Electrical Rating (Net MWe):

1040 6.

Maximum Dependable Capacity (Gross MWe): 1085 7.

Maximum Dependable Capacity (Net MWe):

1040 i

8.

If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons:

N/A 9.

Power Level lo Wnich Restricted. If Any (Net MWe):

N/A

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10.

Reasons For Restrictions. If Any:

N/A i

This Month Yr-to-Date

-Cumulative 11.

Hours In Reporting Period 744 0

~5.087.0 165.384;0 12.

Number Of Hours Reactor Was Critical 744.0 3.818.6 118.356.3' 13.

Reactor Reserve Shutdown Hours 0.0 0.0 226.1-il 14.

Hours Generator On-Line 744.0 3,818.6 115.397.6..

15.

Unit Reserve Shutdown Hours 0.0 0.0 0.0 16.

Gross Thermal Energy Generated (MWH) 2.321.098.0 11.442.610.0 342.134.950 17.

Gross Electrical Energy Generated (MWH).

777.810.0 3.836.359.0 110.004.294 18.

Net Electrical Energy Generated (MWH) 747.502.0 3.685.141.0 104.795.805-19.

Unit Service Factor 100.0 75.0 69 7 1

20.

Unit Availability Factor 100.0 75 0 69.7 21.

Unit Capacity Factor (Using MDC Net) 96.6 69.6 60.9 22.

Unit Capacity Factor (Using DER Net) 96.6 69.6 60.9 4

.23.

Unit Forced Outage Rate 0.0 0.0 15.2 i

24.

Shutdowns'. Scheduled Over Next 6 Months (Type. Date. and Duration of Each):

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Scheduled Shutdown for Service Water Outaae 10/7/93.

Startuo scheduled for 3/8/94.

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25.

If Shut Down At End Of-Report Period. Estimated Date of Startup:

26.

Units In Test Status (Prior to Commercial Operation):

Forecast Achieved

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INITIAL-CRITICALITY l

INITIAL ELECTRICITY COM!ERCIAL OPERATION j

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ZCLERKJ5 (3)'

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-295 UNIT NAME 21on Unit 1 DATE 08/12/93 COMPLETED BY J. Cycan TELEPHONE (708) 746-2084 x3169 REPORT MONTH JULY 1993 i

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 07/07/93 F

51.4 B

3 LER 93-007 JE 0033 RX trip during performance of PT-5.

4 07/10/93 F

13.0 A

1 Discovered Leaking Heater Drain Tank Rupture Disc.

Changed out.

1 2

3 4

F: Forced Reason:

Method Exhibit G - Instructions S: Scheduled

A-Equipment Fatiure (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 i

F-Administrative 5

G-Operational Error (Explain)

Exhibit 1 - Same Source H;0ther (Explain)

ZCLERK-5 (4)L

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-304 UNIT NAME Zion Unit 2 DATE 08/12/93 COMPLETED BY J CYGan TELEPHONE (708) 746-2084 x3169 REPORT MONTH JULY 1993 4

'l 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 i

Reactor On-line for the entire reporting period.

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4 F: Forced eason:

Method Exhibit G - Instructions R

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) l E

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Z. CLERK-5-(5)

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AVERAGE DAILY UNIT POWER LEVEL r

DOCKET NO. 50-295 UNIT Zion Unit 1 DATE 08/12/93-i COMPLETED BY J. Cyoan

'l TELEPHONE (708) 746-2084 x3169 f

MONTH 1ULY 1993 DAY AVEPE NILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL WA-Net)

(MWe-Net) i 1

991 17 1.038

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1.043 18 1.043

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3 1.041 19 1.045 4

1.044 20 1'.042 l

5 1.044 21 1.043 6

1.043 22 1.038 j

7 377 23 1.040

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-13 24 1.042 9

144 25 1.044 t

10 158 26 1.043

'f 11 527

.27 1.044 12 925 28 1.043 l

13 1.008 29 1.006 1

i 14 1.046 30 1.041 1

15 1.044 31 1.041~

116-1.040 ii INSTRUCTIONS 1

On this format, list the average daily unit power level in MWe-Net for each day in the-

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reporting month. Compute to the nearest whole megawatt.

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AVERAGE DAILY UNIT POWER LEVEL.

f DOCKET NO. 50-304 UNIT Zion Unit 2-I DATE 08/12/93-COMPLETED BY J. Cyoan

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TELEPHONE (708) 746-2084 1

x3169 j

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MONTH JULY 1993 j

1 DAY AVERAGE DAILY POWER LEVEL DAY ' AVERAGE DAILY POWER LEVEL

.l (MWe-Net)

(MWe4'et) j 1

998 17-1.015 j

2 1.009 18 1.023

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3 961 19 1.028 4

991 20 990 5

1.008 21 962 i

6 1.001 22-1.017 -

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977 23 974 8

1.010-24 971 l

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1.033 25 1.015 q

10 1.034 26.

994 l

11 1.038 27 1.035 i

12 1.046 28 1.044-13 1.048 29 958 ---

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14 981 30 969 15-1.018 31

-984 j

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INSTRUCTIONS 1

- 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 JULY 1993 i

SUMMARY

OF OPERATING EXPERIENCE-J

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UNIT 1

'f Unit 1, began July at 1093 MWe power level (100% reactor power).

i On 7/7/93 at 0815 there was an Rx trip during performance of PT-5.

Prior' to the i

trip a spurious alarm was received. Consequently. 1B RCP tripped which_resulted in-l a Rx trip.

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Rx was critical at 1731 on 7/8/93.

Unit went On-Line on 7/9/93 at 1215 and power increased to 40% by 1458. Heater i

Drain Tank level control problems were experienced during the power increase.

Investigation discovered a leaking Heater Drain Tank rupture disc at 50% power level. Started Unit shutdown at 0750 on 7/10/93 to repair Heater Drain Tank rupture disc.

Unit was Off-Line at 1138 on 7/10/93.

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Unit was back On-Line at 0038 on 7/11/93 after Heater Drain Tank rupture disc change out. Power increasing to 60%

At 1210 on 7/11/93 Unit I was returned to Load Dispatcher control with full power operation. The Unit concluded the reporting period at 1095 MWe power level (100% reactor power).

UNIT 2

.i Unit 2., began July at 1040 MWe power level (94.1% reactor power). There were no-l Load Reductions or Unit shutdowns during the month of July. Unit _2 was continuously :

on line for 156 days on 7/31/93. The Unit concluded the' reporting per_iod at 965 MWe-power level (87% reactor power).

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JULY 1993 I

l MAJOR SAFELY RELATED MA?NTENANCE' 1

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Ecuipment Namo Work Performed l

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?L. Comp Major Overhaul:

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1 Compressor Repaired 005: 6/08/93 - 7/11/93

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1A 1A Comp

-Major Overhaul:

I-005: 6/29/93.

• 00 CC Pp Scheduled Oil Change:

Completed I

005: 7/7/93 - 7/7/93 l'

OE CC Pp Scheduled Oil Change:

Com leted i

j-005 7/9/93 - 7/9/93-IC CS Pp 011 Filter _ Change:

1 Completed-L 005: 7/13/93 - 7/13/93-

"1A D/G Investigate water leak:

Investigation completed

[_

005: 7/14/93 - 7/14/93 r-1B SI Pp Taking Oil Samples:

Sample pulled

'005: 7/15/93 - 7/15/93-l lA AFW Pp

' Pre Outage P'i work:

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. Work completed '- tested; l

005: 7/15/93 s 7/1E/93-l

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-1B SI Pp

- Scheduled PM:

1 Work completed - tested' i

~005: 7/19/93'- 7/20/93 I

1 DB CC Pp Scheduled Mod on Pp vent:

L Work completed tested j

i 005:'7/19/93.' 7/20/93-

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1A D/G

-Jacket Water Leak Investigation:

Investigation completed y

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00S: 7/21/93 - 7/21/93

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. COMMENT (S):

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_IA IA Comp scheduled RTS 8/03/93'

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1 JULY 1993 MAJOR SAFETY RELATED MAINTENANCE (CONTINUED) 1 i

Work Performed l

Ecuipment Name (UNIT 1) i 1A SI Pp Scheduled PM:

Maintenance-completed

-l 005: 7/26/93 - 7/27/93 it IB SW Pp Removal of Temp Alt-

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Temp Alt removed DOS: 7/26/93 '7/26/93 t

OD CC Pp Vent' Mod Work:

Work Completed 00S:' 7/30/93 - 7/30/93 1C SW Pp Removal of Temp Alt:

i 005: 7/30/93' **

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' COMMENT (S):

IC SW PP scheduled RTS 8/02/93.

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JULY 1993

l MAJOR SAFETY RELATED MAINTENANCE j

i E0uipment Name Work Performed

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I (UNIT 2) j 2C Hdr Pp Major Overhaul:

005:.5/17/93

-i 2D CD Pp Major Overhaul:

i Work completed 005: 5/26/93 - 7/03/93 j

1. 2 Pp Air Comp Belt Replacement Belts replaced

't DOS: 7/11/93 - 7/11/93

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2B CD Pp Major Overhaul:

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005: 7/28/93 - **

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- 2C Hdr Pp' scheduled RTS 8/04/93

'2B CD Pp scheduled RTS~ 8/19/93 '

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REFUELING INFORMATION REQUEST-l

. Que'stions :

1.

Name of facility.

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2.

Scheduled date for next refueling shutdcin.

3.

Scheduled date for restart following refueling.

f 4.

Will refueling or resumption of operation thereafter require a technical i

specification change or other license amendment?

If answer-is yes, what, in general, will these be?-

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

Section 50.59)?

o If no such review has taken place, when is it scheduled?.

5.

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

6.

Important licensing consideraticas associated with refueling, 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.

t 8.

The present licansed spent fuel pool _ storage capacity and the size of ariy 1

1ncrease in licensed storage capacity that has been requested or is planned.

-1 in number of fuel assemblies.

9 -.

The projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity.

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ZCLERK-5 (12) 1

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t Unit 1 - Answers j

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Zion Ur.it 1

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Cycle 13 is scheduled to shutdown October 21. 1993 for refueling.

3.

Cycle 14 is scheduled to start up March 31. 1994.

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No Technical Specification changes are planned for Z1C14 so far, t

5.

Not applicable or none proposed,

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Not applicable.

7.

The number of fuel assemblies I

a) in the core is 193. and b) in the spent fuel. storage pool from Zion' unit 1 is 784.

.j 8.

Tne present licensed spent fuel pool storage capacity (shared with Zion Uniti

2) is 3012 fuel assemblies (only 2762 locations will be accessible),

9.

Zion Station will lose dual full core discharge capability in_ October 2000, at-the beginning of Unit 1 Cycle 19. based on the. latest Nuclear Stations Refueling Schedule Full core discharge capability for a single core will' be

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lost in April 2002 at the beginning of Unit 1 Cycle 20.

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ZCLERK-5 (13)

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-i Unit 2 Answers

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Zion Unit 2 i

2.

Cycle 13 is scheduled to shutdown December 31, 1994 for refueling.

3.

Cycle 14 is scheduled to start up March 12, 1995.

4.

No Technical Specification changes are planned for 21C14 so far.

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Not applicable or none proposed.

6.

Not applicable.

7.

The number of fuel assemblies' l

a) in the core is 193. and b) in the spent fuel storage pool from Zion Unit 2 is 840.

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The present licensed spent fuel pool-storage capacity (shared with Zion Unit '

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1) is 3012 fuel assemblies (only 2762 locations will be accessible).

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9.

Zion Station will lose dual full core discharge capability in October 2000, at-1!

the beginning of Unit 1 Cycle 19. based on the latest Nuclear Stations ~

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Refueling Schedule. Full core discharge capability for a single core will be.

i lost in April 2002, at the beginning of Unit 1 Cycle 20.

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