ML20128F238
| ML20128F238 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 04/30/1985 |
| From: | Zupko J Public Service Enterprise Group |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| References | |
| NUDOCS 8505290597 | |
| Download: ML20128F238 (2) | |
Text
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r SALEM GENERATING STATION MONTHLY OPERATING
SUMMARY
- UNIT NO. 2 APRIL.1985 SALEM UNIT NO. 2 The period began with' the Unit operating in Mode 4 (hot shutdown) as the>second refueling / turbine outage drew to a close.
Alignment and.
testing.of the new 22 Aux...Feedwater Pump.was completed.
On 4/5/85~at 2232 hours0.0258 days <br />0.62 hours <br />0.00369 weeks <br />8.49276e-4 months <br />, the Unit. entered. Mode 3 (hot standby).
On 4/6/85, 22MS14-(Steam Generator Safety Valve) failed to reseat.
The. valve was fsubsequently adjusted and retested satisfactorily.
Selected Steam i
Generator. safety valves were retested to verify proper setpoint(s).
On 4/10/85 at 2259 hours0.0261 days <br />0.628 hours <br />0.00374 weeks <br />8.595495e-4 months <br />, the Unit entered Mode 2 (criticality).
Zero
.poweriphysics testing was initiated and completed.
On 4/13/85 at 0136 hour0.00157 days <br />0.0378 hours <br />2.248677e-4 weeks <br />5.1748e-5 months <br />snthe Unit was synchronized and power operation commenced.
At 0143 hours0.00166 days <br />0.0397 hours <br />2.364418e-4 weeks <br />5.44115e-5 months <br /> 4x1 4/13/85,-the Unit tripped as a result of No. 24 Steam
' Generator Low Level coincident.with a Steam Flow / Feed Flow mismatch.
- At 0850 hours0.00984 days <br />0.236 hours <br />0.00141 weeks <br />3.23425e-4 months <br /> on 4/13/85, the Unit was brought critical (Mode 2).
At 1938. hours Unit 2 was synchronized, but due.to a high thrust bearing temperature on 22 SGFP load was reduced from 23% power and the turbine
.raanually tripped at 2006 hours0.0232 days <br />0.557 hours <br />0.00332 weeks <br />7.63283e-4 months <br />.
The Unit was again synchronized at 2239 hours0.0259 days <br />0.622 hours <br />0.0037 weeks <br />8.519395e-4 months <br />.
However, the 22 SGFP thrust bearing temperature was still unacceptable and a power reduction was initiated at 2300 hours0.0266 days <br />0.639 hours <br />0.0038 weeks <br />8.7515e-4 months <br /> with
'theJUnit at 26% power.
The turbine was manually tripped at - 2305 with reactor _ power.at approximately 9%.
After tripping the turbine,
' insufficient steam dumping resulted in lifting at least one Main Steam Safety Valve and a subsequent primary pressure transient resulted in Pressurizer Power Operated Relief Valve. (PORV) 2PRI actuation.
Both
.the.PORV and the Main Steam Safety Valve reseated satisfactorily.
The Pressurizer Safety Valves were not challenged.
No safety limits were approached 1and the Unit was stabilized in Mode 2 at approximately 2345.
hours. 'The Unit remained in Mode 2 pending corrective actions to' #21 i
.and:422LSteam Generator Feed Pumps.
With completion of the Mechanical Overspeed Protection adjustment to #21 Steam Generator Feed Pump
.(SGFP), the Unit was synchronized on 4/17/85 at 1916 hours0.0222 days <br />0.532 hours <br />0.00317 weeks <br />7.29038e-4 months <br />.
At 1928 hours0.0223 days <br />0.536 hours <br />0.00319 weeks <br />7.33604e-4 months <br /> on 4/17/85,.the' Unit tripped as a result of-No. 24 Steam Generator (S/G) Low-Low Level.
Water had accumulated in the reheat steam line which was injected into the #21 SGFP resulting in the
~
- reduction.of feed flow followed by the trip.
The Unit was
. synchronized at 1306 hours0.0151 days <br />0.363 hours <br />0.00216 weeks <br />4.96933e-4 months <br /> on 4/18/85.
At-2103 hours the Unit was removed'from service to conduct the Turbine Overspeed Test.
Following i
Ja satisfactory -test the Unit was returned to service at 2310 hours0.0267 days <br />0.642 hours <br />0.00382 weeks <br />8.78955e-4 months <br />.
On 4/23/85 at 0022 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br />, the Unit tripped on Low Turbine Oil Pressure
- while. switching from one Turbine Lube Oil Cooler at another.
The Unit-i
_was_ synchronized at 2215 hours0.0256 days <br />0.615 hours <br />0.00366 weeks <br />8.428075e-4 months <br /> the same day.
On 4/26/85 at 2300 hours0.0266 days <br />0.639 hours <br />0.0038 weeks <br />8.7515e-4 months <br />, the Unit was removed from service to facilitate repairs to the
~
~
'"hotspot" on "C" Phase of the Isolated Phase Bus.
The Unit was l returned to service at 0700 hours0.0081 days <br />0.194 hours <br />0.00116 weeks <br />2.6635e-4 months <br /> on 4/28/85.
As the period ended, the Unit was operating at 50% power as adjustments to #22 SGFP piping
-supports continue.
i 85052y059785$$$$11 rs Ni l
g DR DOCK C
I
'O_PSEG Public Service Electric and Gas Company P.O. Box E Hancocks Bridge, New Jersey 08038 Salem Generating Station May 16, 1985 Director, Office.of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555
Dear Sir:
MONTHLY OPERATING REPORT SALEM NO. 2 DOCKET NO. 50-311 The recent Monthly Operating Report for April,1985, does not address a challenge to a PORV on 4/13/85.
The operating summary (attached) has been updated to address this.
Sincerely yours,'
J M.
upko, Jr.
General Manager -
Salem Operations JR:sbh cc:
Dr. Thomas E. Murley Regional Administrator USNRC Region I 631 Park Avenue King of Prussia, PA 19406 Director, Office of Management Information and Program Control U.S. Nuclear Regulatory Commission Washington, DC 20555 Enclosure 8-1-7.R4 The Energy People f.
95 2189 (20M) 11-81
.