ML18096A562
| ML18096A562 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 03/05/1992 |
| From: | Stone J Office of Nuclear Reactor Regulation |
| To: | Lamarche D FMC CORP. |
| References | |
| NUDOCS 9203120117 | |
| Download: ML18096A562 (2) | |
Text
,;*
March 5, 1992 9/-~I Ms. Dede LaMarche Senior Information Chemist FMC Corporation Chemical Research and Development Center Box 8 Princeton, New Jersey 08543
Dear Ms. LaMarche:
I am responding to your February 19, 1992, request for information concerning an event that occurred at the Salem Nuclear Generating Station, Unit 2, on November 9, 1991.
The event was a turbine overspeed event that created excessive vibration in the main turbine resulting in, among other things, severe damage to the electrical generator. The damage resulted in lubricating lines being broken and hydrogen being released (the electrical generator is cooled by hydrogen).
The hydrogen ignited, which in turn ignited the oil. A combination of installed fire protection systems and the site fire brigade suppressed the fire in about 20 minutes.
Enclosed is a copy of the Region I Inspection Report that was issued by the Nuclear Regulatory Commission on January 7, 1992.
This report contains the details concerning the event and should answer your questions.
Enclosure:
Region I Inspection Report No. 50-311/91-81 DISTRIBUTION w/enclosure Docket File (50-311)
NRC & Local PDRs (w/incoming)
PDI-2 Reading Yellow Ticket File (w/incoming)
TMurl ey, 12G-18 FMiraglia, 12G-18 JPartlow, 12G-18 WRussell, 12G-18 DCrutchfield, llH-21 FGillespie, 12G-18 SVarga/JCalvo CMi 11 er JStone (w/incoming)
MO'Brien(2) (w/incoming) 9203120117 920305 PDR ADOCK 05000311 G
PDR Sincerely, Original signed by James C. Stone, Senior Project Manager Project Directorate 1-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Elana, PMAS (YT#0920035)
RBlough, RGN-I JWhite, RGN-1 CNorsworthy l
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555
- Ms. Dede LaMarche Senior Information Chemist FMC Corporation Chemical Research and Development Center Box 8 Princeton, New Jersey 08543
Dear Ms. LaMarche:
March 5, 1992 I am responding to your February 19, 1992, request for information concerning an event that occurred at the Salem Nuclear Generating Station, Unit 2, on November 9, 1991.
The event was a turbine overspeed event that created excessive vibration in the main turbine resulting in, among other things,.
severe damage to the electrical generator.
The damage resulted in lubricating lines being broken and hydrogen being released (the electrical generator is cooled by hydrogen).
The hydrogen ignited, which in turn ignited the oil. A combination of installed fire protection systems and the site fire brigade suppressed the fire in about 20 minutes.
Enclosed is a copy of the Region I Inspection Report that was issued by the Nuclear Regulatory Commission on January 7, 1992.
This report contains the details concerning the event and should answer your questions.
Enclosure:
Region I Inspection Report No. 50-311/91-81 Sincerely,
~&~
James C. Stone, Senior Project Manager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation