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Title: Safety evaluation report related to the operability and reliability of emergency diesel generators manufactured by Transamerica Delaval, Inc

Technical Report ·
OSTI ID:5342410

In response to problems regarding the reliability of large-bore, medium-speed diesel generators manufactured by Transamerica Delaval, Inc. (TDI), 11 (now 13) US nuclear utility owners formed a TDI Diesel Generator Owners Group to address operational and regulatory issues relative to diesel generator sets used for standby emergency power. The Owners Group performed extensive design reviews of all key engine components and developed recommendations to be implemented by the individual owners concerning needed component replacements and modifications, component inspections to validate the ''as-manufactured'' and ''as-assembled'' quality of key engine components, engine testing, and an enhanced engine maintenance and surveillance program. The staff evaluation of the Owners Group program is documented in this report. The staff concludes that implementation of the Owners Group recommendations plus additional actions as identified herein will establish the adequacy of the TDI diesel generators for nuclear standby service as required by General Design Criterion 17 of Appendix A to 10 CFR 50. The staff further concludes that these actions will ensure that the design and manufacturing quality of the TDI engines is within the range normally assumed for diesel engines designed and manufactured in accordance with 10 CFR 50, Appendix B. Continued reliability and operability of the TDI engines for the life of the facilities will be ensured by implementation of the maintenance/surveillance program described herein.

Research Organization:
Nuclear Regulatory Commission, Washington, DC (USA). Office of Nuclear Reactor Regulation
OSTI ID:
5342410
Report Number(s):
NUREG-1216; ON: TI86901740
Country of Publication:
United States
Language:
English