ML021140590

From kanterella
Jump to navigation Jump to search
March 2002 Monthly Operating Report for Seabrook Station, Unit 1
ML021140590
Person / Time
Site: Seabrook NextEra Energy icon.png
Issue date: 04/12/2002
From: St.Pierre G
North Atlantic Energy Service Corp
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
NYN-02040
Download: ML021140590 (3)


Text

North Atlantic North Atlantic Energy Service Corporation P.O. Box 300 Seabrook, NH 03874 (603) 474-9521 The Northeast Utilities System April 12, 2002 Docket No. 50-443 NYN-02040 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 Seabrook Station March 2002 Monthly Operating Report Enclosed please find Monthly Operating Report 02-03. This report addresses the operating and shutdown experience relating to Seabrook Station Unit 1 for the month of March, 2002 and is submitted in accordance with the requirements of Seabrook Station Technical Specification 6.8.1.5.

Should you require further information regarding this

matter, please contact Mr. James M. Peschel, Manager - Regulatory Programs, at (603) 773-7194.

Very truly yours, NORTH ATLANTIC ENERGY SERVICE CORP.

Gene F. St. Pierre Station Director y/1

cc:

H. J. Miller, NRC Region I Administrator R. D. Starkey, NRC Project Manager, Project Directorate 1-2 G.T. Dentel, NRC Senior Resident Inspector

OPERATING DATA REPORT DOCKET NO.

50-443 UNIT Seabrook I DATE April 1,2002 COMPLETED BY J. L. Dalton TELEPHONE (603) 773-7025 OPERATING STATUS

1.

Unit Name:

Seabrook Station Unit 1

2.

Reporting Period:

MARCH 2002

3.

Licensed Thermal Power (MWt):

3411.0

4.

Design Electrical Rating (Net MWe):

1148.0

5.

Maximum Dependable Capacity (Net MWe):

1155.3

6.

If Changes Occur in Capacity Ratings (Items Number 3 through 5)

Not Applicable Since Last Report, Give Reasons:

This Month Yr-to-Date Cumulative

7.

Number of Hours Reactor Was Critical 744.0 2160.0 88663.9

8.

Hours Generator On-Line 744.0 2160.0 85868.7

9.

Unit Reserve Shutdown Hours 0.0 0.0 0.0

10.

Net Electrical Energy Generated (MWH) 861616 2501401 96386933 I of 2 OPERATING

SUMMARY

The unit operated at 100% Rated Thermal Power (RTP) except for eight hours this month. Power was reduced to 97.5% RTP to facilitate testing on a Reactor Protection Temperature Channel. This yielded an availability factor of 100% and a capacity factor of 100.2% based on the MDC value of 1155.3 Net MWe.

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.

50-443 UNIT Seabrook I DATE April 1, 2002 COMPLETED BY J. L. Dalton TELEPHONE (603) 773-7025 MONTH: MARCH 2002 2 of 2 NO.

DATE TYPE' DURATION REASON 2 METHOD OF SHUTTING CAUSE / CORRECTIVE ACTIONS (HOURS)

DOWN REACTOR COMMENTS 02-01 03/2/02 S

0.0 B/F 5

Reduced power to 97.5% RTP to complete a response time testing calibration on Loop 3 Reactor Protection Temperature channel.

Operations procedures required a 2% RTP power reduction with Loops 1, 3 or 4 temperature channels in a tripped condition. This action provides margin against an inadvertent OPAT/OTAT reactor trip due to the Upper Plenum Flow Anomaly. Unit returned to full power operation the same day.

2 3

F:

Forced Reason:

Method:

S:

Scheduled A - Equipment Failure (Explain) 1 - Manual B - Maintenance or Test 2 - Manual Trip C - Refueling 3 - Automatic Trip D - Regulatory Restriction 4 - Continued from previous month E - Operator Training / License Examination 5 - Other (Explain)

F - Administrative G - Operational Error (Explain)

H - Other (Explain)