ML17345A781
| ML17345A781 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 03/29/1991 |
| From: | Plunkett T FLORIDA POWER & LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| L-91-90, NUDOCS 9104040134 | |
| Download: ML17345A781 (5) | |
Text
ACCELERATED DISTRIBUTION DEMONSTRATION SYSTEM 1
i RECIPIENT ID CODE/NAME PD2-2 LA AULUCK,R COPIES LTTR ENCL 1
1 2
2 RECIPIENT ID CODE/NAME PD2-2 PD COPIES LTTR ENCL 1
1 REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCESSION NBR:9104040134 DOC.DATE: 91/03/29 NOTARIZED:
NO FACIL:50-250 Turkey Point Plant, Unit 3, Florida Power and Light C 50-251 Turkey Point Plant, Unit 4, Florida Power and Light C AUTH.NAME AUTHOR AFFILIATION PLUNKETT,T.F.
Florida Power
& Light Co.
RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
SUBJECT:
Forwards post-mod testing of emergency diesel generator idle start mod.
DISTRIBUTION CODE:
A001D COPIES RECEIVED:LTR
-ENCL SIZE:
TITLE: OR Submittal:
General Distribution NOTES:
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05000250 05000251
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D INTERNAL: NRR/DET/ECMB 9H NRR/DOEA/OTS B1 1 NRR/DST/SELB 8D NRR/DST/SRXB 8E OC/LFMB
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1 1
1 1
1 1
1 1
0 1
1 1
1 NRR/DET/ESGB NRR/DST 8E2 NRR/DST/SICB 7E NUDOCS-ABSTRACT OGC/HDS3 RES/DSIR/EIB NSIC 1
1 1
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1 D
NOTE TO ALL"RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM P 1-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LIPID FOR DOCUMENTS YOU DON'T NEED!
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 18 ENCL 16 D
D
P.O. Box 029100, Miami, FI33102-9100 MAR 29 1991 L-91-90 U. S. Nuclear Regulatory Commission Attn:
Document Control Desk Washington, D.
C.
20555 Gentlemen:
Re:
Turkey Point Units 3 and 4
Docket No. 50-250 and 50-251 Post,-Modification Testing of Emergency Diesel Generator Idle Start Modification Attached please find a description of the testing which will be performed as part of the idle start modifications for the existing Emergency Diesel Generators (EDGs).
This information is being provided as requested by Mr. Rajender Auluck, Turkey Point Project Manager.
The testing program, as described in the attached Section 13 of Project Change/Modification (PC/M)87-264, "EDG 3B/4B, EDG 3A/4A, and New EDG Building Tie-Ins," may be revised prior to full implementation of the PC/M.
A Pre-Operational Testing Procedure which incorporates the testing requirements of this PC/M is being generated.
This procedure will be completed and available for NRC review by April 30, 1991.
Should there be any questions, please contact us.
Very truly yours, T. F. Plunkett Vice President TFP/GS Attachment cc:
Stewart D. Ebneter, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, Turkey Point Plant
'.9104040134 910329
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t PC/M No.87-264 Revision 6
Page No.
84-f 13.0 STARTUP TESTING (Continued) 13.3 Functional Testin (Continued) 13.3.6 Electrical Tie-in for the Communication S stem (PC/M 87"261)
Note:"
Installation of communication system is performed in PC/M 87-261.
PC/M 87-264 provides system tie-in with existing communication system.
13.3.6.1 Verify that the PA System operates correctly.
The PA handsets/headsets, site evacuation alarm
- lights, and fire alarm horn, shall function properly tied into the existing system.
13.3.6.2 Verify that the PBX system operates correctly.
The telephone handset stations with a loud ringing bell and flashing lights shall function properly tied into the existing system.
13.3
~ 6. 3 Verify that the Alternate Shutdown Communications System operates correctly.
The handsets with headset adaptors shall function properly tied into the system.
13.3
~ 7 Id'le Start The EDG Idle Start System test for EDGs 3A and 3B is discussed herein.
Similar tests are required for EDGs 4A and 4B, and are included in PC/M 87-263.
Upon completion of the Idle Start modifications, EDGs 3A and 3B shall be tested by performing twenty-three (23) consecutive EDG starts without failure.
Twenty-three (23) consecutive starts provides a
conservative level of testing consistent with the guidelines of Regulatory Guide 1.108, Periodic Testing of Diesel Generator Units Used as Onsite Electric Power Systems at Nuclear Plants, Revision 1, for the extent of the modifications being performed.
In
- addition, full load carrying capability for an interval of not less than 24
- hours, 2
hours of which would be at load equivalent to 110 percent rating and 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> at a
load equivalent to the EDG continuous rating will be demonstrated.
10481/9
t PC/M No.87-264 Revision 7
Page Ne. ~g4-13.0 STARTUP TESTING (Continued) 13.3 Functional Testin (Continued) 13.3
~ 7 Idle Start (Continued)
An EDG at Standby temperature conditions is normal started with the Idle Start pushbutton and the Governor Control switch in the "Electric" position.
The engine should come up to idle speed (430-470 rpm) and remain there.
The EDG is run for approximately 5
minutes to perform engine checks (ie system pressures and temperatures, engine noises and vibrations).
After these engine checks have been performed, the engine can be returned to idle via the normal stop control switch.
13.3.7.1 Governor Electric/Hydraulic Controls With the EDG at idle speed and the Governor Select Switch in the "hydraulic" position, verify operation of the governor control by accelerating engine to rated 900 rpm manually.
At rated engine speed (900 RPM),
verify electronic governor control with the Governor Select Switch in "electric" position by adjusting engine speed within manufacturer's specified limits.
Stop the EDG via the normal stop control switch.
13.3.7.2 Normal Start with Full Load With the Governor Select switch in the "Electrical" position (normal position),
the engine is started normally.
After an approximate 60-second warm"up period at idle speed (450 rpm nominal),
the engine accelerates to rated speed (900 rpm nominal).
After the EDG is synchronized to the grid, slowly load to 100%
load.
Engine and generator parameters are allowed to stabilize.
Upon selecting the normal stop
- mode, the EDG returns to idle for an approximate 20 minute cooldown period.
Then the EDG shuts down automatically.
1048I /10