ML20136A717

Monthly Operating Rept for Aug 1985

ML20136A717
Person / Time
Site:	Millstone
Issue date:	08/31/1985
From:	Neron G, Romberg W NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
MP-8189, NUDOCS 8511200014
Download: ML20136A717 (15)

Text

'

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-336 UNIT 2-DATE 9/13/85 COMPLETED BY G. Neron TELEPHONE (203) 447-1791 Ext. 4417 MONTH August 1985 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 851 17 853 2

854 18 810 3

853 19 849 4

851 20 850 5

849 21 852 6

850 22 851 7

849 23 836 8

848 24 653 9

714 25 778 10 768 26 852 11 845 27 852 12 761 28 852 13 832 29 852 14 848 30 852 15 848 31 854 16 851 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.

I 851120001 850831 h

PDR A

05000336 R

PDR

OPERATING DATA REPORT DOCKET NO. 50-336 DATE 9/13/85 COMPLETED BY G. Neron TELEPHONE (203) 447-1791 Ext. 4417 OPERATING STATUS 1.

Unit Name: Millstone Unit 2 Notes Items 21 and 22 2.

Reporting Period: August 1985 cumulative are weighted 3.

Licensed Thermal Power (MWt):

2700 averages. Unit operated 4.

Nameplate Rating (Gross MWe):

909 at 2560 MW Thermal prior 5.

Design Electrical Rating (Net MWe):

870 to its uprating to the 6.

Maximum Dependable Capacity (Gross MWe):

866.25 current 2700 MW Thermal 7.

Maximum Dependable Capacity (Net MWe):

835.25 Power Level.

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 744 5831 84887 12.

Number Of Hours Reactor Was Critical 744 2519.3-60596.3 13.

Reactor Reserve Shutdown Hours 0

0 2205.5 14.

Hours Generator On-Line 744 2400.7 56793.7 15.

Unit Reserve Shutdown Hours 0

0 468.2 16.

Gross Thermal Energy Generated (MWH) 1963361 6106369 143790826 17.

Gross Elec. Energy Generated (MWH) 639200 1987000 46668679 18.

Net Electrical Energy Generated (MWH) 616228 1892257 44715780

19. Unit Service Factor.

100 41.2 66.9 20.

Unit Availability Factor 100 41.2 67.5 21.

Unit Capacity Factor (Using MDC Net) 99.2 38.9 63.5 22.

Unit Capacity Factor (Using DER Net) 95.2 37.3 61.8 23.

Unit Forced Outage Rate 0

4.5 16.7 24.

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

N/A 25.

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

N/A 26.

Units In Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY N/A N/A INITIAL ELECTRICITY

, N/A N/A COMMERCIAL OPERATION N/A N/A

DOCKET NO.'50-336-UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME Millstone 2 DATE: 9/13/85' COMPLETED'BY G. Neron REPORT MONTH' August 1985 TELEPHONE (203) 447-1791 Ext. 4417 l

2 No.

Date" Type Duration Reason Method of Licensee Systeg' Compogent-Cause & Corrective

_(Hours)-

' Shutting Event Code-Code Action to 3

Down Reactor Report #

Prevent Recurrence-L4-l850809.

'F'

'O

-A 5

N/A FK CBL-Power was reduced-to 47%.fran 100% ;

power due to an.

unstable 345 KV System caused by a loss of two-(2) offsite 345 KV-lines.

5 850812.

F.

O A

5 N/A AA R0D CEA #67 was indicated at the upper electrical limit, but was-actually inserted partially into the core during rod motion testing.

Power was reduced to.<70% power and' CEA was recovered.

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 Scram Entry Sheets for Licensee?

C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Continued from (NUREG-0161)

E-Operator Training & License Examination previous month F-Administrative 5-Power Reduction 5

-G-Operational Error (Explain)

(Duration = 0)

Exihibit 1 - Same Source H-Other ' (Explain) 9-Other (Explain)

DOCKET NO. 50-336 UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME Millstone 2 DATE 9/13/85 COMPLETED BY G. Neron REPORT MONTH August 1985 TELEPHONE (203) 447-1791~

Ext. 4417 l

2 No.

Date Type Duration Reason Method of Licensee Systeg Compogent Cause & Corrective (Hours)

Shutting Event Code Code

-Action to 3

Down Reactor Report i Prevent Recurrence 6

850817 F

0 A

5 N/A IM TI Power.was reduced to 77% when "C" RCP Lower Guide Bearing Temperature was indicated high.

Poor connection in wiring was found and repaired.

7 850823 S

0 B

5 N/A SG COND Power was reduced to 78% for condenser tube cleaning (Mussel Cooking) and water box entry.

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 Scram Entry Sheets for Licensee i

C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Continued from (NUREG-0161)

E-Operator Training & License Examination previous month F-Administrative 5-Power Reduction 5

^

G-Operational Error (Explain)-

(Duration = 0)

Exihibit 1 - Same Source H-Other (Explain) 9-Other (Explain)

G w

Docket No. 50-336 Date 9/13/85 Unit Name Millstone 2 Completed By G. Neron Telephone (203) 447-1791 Ext. 4417 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT REPORT MONTH August 1985 DATE SYSTEM COMPONENT MAINTENANCE ACTION 8/16/85 Sampling Gas Sample Pressure Pump F40B Replaced light bulb in Photohelic and adjusted Photohelic relay contacts.

7/31/85 Process and Area Stack Gas Mid Range Detector Replaced detector with new detector Radiation Monitoring (Channel 1) and recalibrated.

Process and Area Stack Gas Iodine Filter Detector Replaced GM Detector and Recali-Radiation Monitoring (Channel 5) (PI Collector-3) brated.

7/24/85 Process and Area Ctmt Air Particulate Rad Monitor Removed old meter and shunt Radiation Monitoring Loop resistor, replaced with new 0-1 MA 10(1) - 10(6) C/M Meter, Aligned Electronics on RIT-8262A and ESAS.

6/14/85 Reactor Coolant and Reactor Internals - ICI Plate Installed Guide Tube Cluster #5.

Vessel 6/11/85 Reactor Coolant and Reactor Internals - CEA Installed new CEA Extension Vessel Extension Shafts Shafts (#14, 15 & 62).

5/21/85 Reactor Coolant and "B" RCP Motor Changed out Upper Guide Bearing Vessel and replaced all non-conductive oil lines in upper sump.

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' Docket No. 50-336 LDate 9/13/85 Unit Name Millstone 2 Completed By G. Neron Telephone (203) 447-1791~

Ext. 4417-s CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT REPORT MONTH August 1985'

[

DATE SYSTEM COMPONENT MAINTENANCE ACTION 7/3/85

. Reactor Coolant and

1. 2 S/G Flow XMTR PDT-121B Weld repaired pinhole leak on pipe.

Vessel Lo Side Iso Valve L

3/25/85 Reactor Coolant and Loop "1A" to.PZR Continuous Adjusted packing and operated.

Vessel' Spray Flow Throttle Valve

.6/21/85 Control Element CEA's #23 and #46 (CEDM)

Disassembled and cleaned' holes; Drive installed.new ball seals on both

1. 23 and #46.

t 5/8/85 CVCS' Letdown. Flow Control Valve Installed new plug, seat, packing, Assembly seal ring and seal gasket.

4/17/85 CVCS RCP Bleedoff Control Valve Machined plug and seat, lapped and blued.

6/13/85 CVCS Charging, Pump "C" Discharge Performed weld on valve cap.

Relief Valve 6/21/85 Boric Acid Valve 2-CH-504 and Adjacent Spliced in 20' of new heat trace Piping. Heat Trace Component cable (SC #2605), made up 5 splices and thermoned heat trace cable back to pipe, and. rein.

sulated 90% of pipe length.

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Docket No. 50-336 Date 9/13/85 Unit Name Millstone 2 Completed By G. Neron Telephone (203) 447-1791-Ext. 4417 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT REPORT MONTH August 1985 DATE SYSTEM COMPONENT MAINTENANCE ACTION 6/22/85 Boric Acid Recirc Vlv 2-CH-510 and Respliced.open heater in Hot Piping to Tank "A" Heat Trace Splice Kit and replaced fuse in Component controller of secondary.

4/19/85 Boric Acid Boric Acid Pump "B" Casing Spliced leads of open heating Heat Trace Component element at "BX" termination with cold end termination kit; Thermoned heat trace element on casing.

6/24/85 Boric Acid "B" Boric Acid Pump Assembly Reset Impeller-to-Casing to.015";

replaced bearings and seal.

5/24/85 Safety Injection SI Piping 6-CCA-6 Drain Piping New piece of pipe welded into Tanks place between 2-SI-713A and 2-SI-7138.

5/1/85 Safety Injection

1. 1 SIT Relief Valve Set valve to 250# Max and 245# Min.

Tanks 5/23/85 Safety Injection

1. 2 SIT Outlet Check Valve Changed end cap gaskets and bonnet Tanks gasket.

4/6/85 Safety Injection

1. 2 SIT Isolation Drain Valve Replaced packing and body to Tanks bonnet gasket, cleaned valve and surrounding area.

r Docket No. 50-336-Date 9/13/85' Unit Name Millstone 2 Completed By G. Neron Telephone (203) 447-1791 Ext. 4417 l

i l

CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT l

REPORT MONTH August 1985 DATE SYSTEM COMPONENT MAINTENANCE ACTION l

6/1/85 Safety Injection

1. 3 SIT Isolation Drain Valve Installed new S.S. studs and nuts Tanks for packing gland.

l l

5/20/85 HPSI Loop "1A" Non-Return Check Valve Cleaned gasket surface and I

installed new gasket; torqued end cap.

Loop "1B" Non-Return Check Valve Cleaned gasket surface and installed new gasket; torqued end cap.

Loop "2A" Non-Return Check Valve Cleaned gasket surface and installed new gasket; torqued end cap.

l Loop "2B" Non-Return Check Valve Cleaned gasket surface and installed new gasket; torqued end cap.

5/15/85 HPSI HPSI Header "A" Relief Valve Reset valve and tested.

5/20/85 HPSI SI System to Loop "1A" Reassembled with new seal Non-Return Check Valve rings.

~

1 l

L

Docket No. 50-336 Date 9/13/85 Unit Name Millstone 2 Completed By G. Neron Telephone (203) 447-1791 Ext. 4417 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT REPORT MONTH August 1985 DATE SYSTEM COMPONENT MAINTENANCE ACTION 5/16/85 CTMT Spray SI and CTMT Spray Test Line Lapped wedge, blued and Drain Valve repacked.

3/9/85 Sampling

1. 1 Hot Leg Loop Flow Control Installed new stem and plug, Sample Valve lapped, blued and repacked.

3/29/85 Sampling PZR Surge Lir.e Flow Control Installed new stem and plug, Sample Valve lapped, blued and repacked.

6/18/85 EBFS "A" EBFS Fan Suction Filter Installed new 27 charcoal filter, 9' HEPA filter and nine 5700 prefilters.

Filled test canisters with charcoal from installed filters.

3/7/85 Main Steam Inlet Isolation Valve to Cleaned parts, lapped wedge, 2-MS-266B blued and repacked.

6/12/85 Main Steam

1. 1 S/G Blowdown Control Cleaned, machined plug and Valve Assembly and seat, lapped, blued and repacked.

6/18/85 Main Steam

1. 1 S/G MSIV Assembly Repaired accumulator blowdown valve and tightened solenoid panel union.

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Docket No. 50-336 Date 9/13/85 Unit Name Millstone 2 Completed By G. Neron Telephone (203) 447-1791.

Ext. 4417 CORRECTIVE MAINTENANCE SUPMARY FOR SAFETY RELATED EQUIPMENT l

l REPORT MONTH August 1985 DATE SYSTEM COMPONENT MAINTENANCE ACTION 6/21/85 Main Steam

1. 1 S/G MSIV Assembly Replaced seal tight for two limit switches.

6/18/85 Main Steam

1. 1 S/G MSIV Air Operator Removed operator and replaced with spare operator.

7/2/85 Main Steam

1. 1 S/G MSIV Air Operator Removed operating cylinder and replaced with spare.

4/12/85 Service Water "C" Svc Wtr Pump Assembly Replaced bearing flow indicators upper and lower with new indicators.

6/27/85 Service Water Vital AC Switchgear Rm Performed temporary weld repair C1g Coil X183 Syc Wtr on Svc Wtr Pipe to X183 Coil.

Return Pipe 5/24/85 Service Water Svc Wtr Pump Casings Svc Wtr Installed new piping for "A" Supply Pipe lube water to Svc Wtr pump and repainted area.

6/19/85 Service Water RBCCW "B" Header Heat Exchanger Installed new dual valves, Inlet Valve Assembly attached seal tight, made up air fittings, lugged wires and added C-fittings with covers.

Ring terminals bolted tight o

and tapped.

Covers installed.

L

Docket No. 50-336 Date 9/13/85 Unit Name Millstone 2 Completed By G. Neron Telephone (203) 447-1791 Ext. 4417 CORRECTIVE MAINTENANCE St#94ARY FOR SAFETY RELATED EQUIPMENT REPORT MONTH August 1985 DATE SYSTEM COMPONENT MAINTENANCE ACTION 5/24/85 Service Water Svc Wtr Pumps (Above Ground)

Removed discharge tee and Discharge Pipe elbow; installed new piping and hangers, and reinstalled 2-SW-97A and 2-SW-3A.

Repaired leaking air line.

5/13/85 Service Water Svc Wtr Pumps (Above Ground)

Performed weld repair to Discharge Pipe flange upstream of 2-SW-8A and painted.

6/5/85 Service Water Svc Wtr (Underground) Turbine Replaced flange bolts and and Aux. Building Supply Pipe nuts.

3/16/85 Service Water Strainer Backwash Svc Wtr Drain Installed new backwash svc wtr Pipe drain pipe.

6/22/85 Service Water Diesel Engine Coolers Svc Wtr Installed 2-SW-12A and Spool Supply Header Pipe Piece above it.

Installed j

2-SW-128 and spool downstream.

i Welded in seismic collars on pipe downstream of 2-SW-12A and 2-SW-12B.

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Dockst No. 50-336 Date 9/13/85 Unit Name Millstone 2 Completed By G. Neron Telephone (203) 447-1791 Ext. 4417 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT REPORT MONTH August 1985 DATE SYSTEM COMPONENT MAINTENANCE ACTION 6/17/85 RBCCW RBCCW Pump 11C Header "B" Replaced solenoid with new Suction Valve Assembly solenoid, replaced hand switch, installed new seals on actuating piston in regulator, rebuilt operating cylinder.

6/17/85 Station Electric 4.16 KV Breaker - 24G to 24C Replaced bushings.

Service 4.16 KV Feeder Breaker 22S3-24C-2 4/8/85 Station Electric 4.16 KV Breaker -

Performed bushing changeout.

Service 4.16 KV P43A Ctat Spray Pump 24C6-2 3/19/85 Station Electric 4.16 KV Breaker - P438 Ctmt Cleaned ML-13 Mechanism and Service 4.16 KV Spray Pump 24D4-2 replaced Bushings.

6/13/85 120 V Vital Regulated Inverter #3 Replaced Seven Leaking D.C.

Instrument AC capacitors and one capacitor with a stripped screw hole.

6/19/85 125 V DC 125 V DC Breaker - 125 V DC Split breaker for removal of Bus 201A to 125 V DC Bus 201B EC device, installed EC-1 devices after being refurbished and calibrated by Satin American.

Docket No. 50-336 Date 9/13/85 Unit Name Millstone 2 Completed By G. Neron Telephone (203) 447-1791 Ext. 4417 CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT REPORT MONTH August 1985 DATE SYSTEM COMPONENT MAINTENANCE ACTION 6/18/85 125 V DC 125 V DC Breaker - Charger "C" EC-1 devices repaired at Satin Input to 201A-201B Tie Bus American and reinstalled, replaced gasket in leaky transmission.

8/2/85 Diesel Generator "B" D/G D.C. Air Compressor Replaced hydraulic unloader, Assem5ly (F10D) unloader assembly and piston.

7/31/85 Diesel Generator "B" D/G D.C. Air Compressor Installed new relief valve, Discharge Relief (F100) lapped seat and disc.

5/10/85 Diesel Generator "A" Diesel Engine Starting Replaced flexitallic gasket.

Air Operated Valve.

6/28/85 Reactor Protection Reactor Trip Circuit Breaker Installed new cutoff switch.

1. 6 TCB-6 has been replaced with a new circuit breaker (AK-25-2A-E,

1. AK 42105).

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l Docket No. 50-336 Date:

9/13/85 j

[

Completed By: G. Neron Telephone: (203) 447-1791 i

Ext. 4417 l

REFUELING INFORMATION REQUEST 1.'

Name of facility:

Millstone 2 9

~2.

Scheduled date for next refueling shutdown: August 1986 l

'3.

Schedule.date for restart following refueling: October 1986

4.

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

Unknown at this time.

5.

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

' A.'

Technical support information for reracking the spent fuel pool was' submitted on July 24, 1985 to support a proposed license ammendment.

1 6.

Important. licensing considerations associated with refueling,. e.g.,

L new or-different fuel' design or supplier, unreviewed design or-

~

1 performance analysis methods, significant changes in fuel design, new operating procedures:

1 None l-7.

The number of fuel assemblies (a) in the core and (b) in the' spent

)

fuel storage pool-

-(a).In Core: 217 (b) 449 8.

The present licensed spent fuel pool storage capacity and the size of any' increase in licensed storage capacity that has been requested or is planned, in number of fuel' assemblies:

j i

Current 1y' 667

. Plans.are being formulated to rerack theispent fueljpool beginning.

[.

. in December,1985, 'to increase the storage capacity to 1106 fuel assemblies.

9.

The projected date'of the last-refueling that can.be discharged to.

the: spent fuel pool assuming:the present licensed capacity:

3 1985, Spent Fuel Pool, Full Core off load capacity'is' reached.

1987,-Core Full, Spent Fuel Pool contains 648 bundles.-

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September 13, 1985 MP-8189 Director, Office of Resource Management U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Reference:

Facility Operating License No. DPR-65 Docket No. 50-336

Dear Sir:

This letter is forwarded to provide the report of operating and shutdown experience relating to Millstone Unit 2 Monthly Operating Report 85-08 in accordance with Appendix A Technical Specifications, Section 6.9.1.3.

One additional copy of the report is enclosed.

Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY FOR:

W. D. Romberg Station Superintendent Millstone Nuclear Power Station h

• b BY:

J. J. Kelley Unit 2 Superintendent Millstone Nuclear Power Station WDR/RB: dip cc: Director, Office of Inspection and Enforcement, Region I Director, Office of Inspection and Enforcement, Washington, D. C. (10)

U. S. Nuclear Regulatory Commission, c/o Document Management Branch, Washington, D.C. 20555 g