Development and implementation of a turbine-generator outage interval extension strategy

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:207820

McCloskey, T H ^[1]; Pollard, M A ^[2]; Schimmels, J N ^[3]

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1. Electric Power Research Inst., Palo Alto, CA (United States)
2. Carolina Power and Light Co., Raleigh, NC (United States)
3. Sargent and Lundy LLC, Concord, CA (United States)

In the industry`s growing competitive climate, utilities are seeking ways to tap the economic benefits to be derived from maximizing intervals between major turbine-generator (T-G) inspections and overhauls -- while ensuring protection of these assets. EPRI and others have developed a substantial body of technology which addresses many of the condition assessment issues that underlie T-G inspection and overhaul decisions. Examples include remaining life determination of critical components such as rotors and blades. While the initial focus of this technology had previously been to support T-G run-repair-replace decision-making, this technology can also serve as a basis for run-inspect decisions. This paper describes EPRI`s initiative to develop and implement a T-G Health Management System. By providing key status reports reflecting the on-line health of critical components, in terms of life consumption, performance degradation and probability of failure, this system will provide a means to justify extending T-G operations between inspections and overhauls.

• OSTI ID: 207820
• Report Number(s): CONF-951010--; ISBN 0-7918-1488-2
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
AVAILABILITY
FOSSIL-FUEL POWER PLANTS
MAINTENANCE
OUTAGES
PLANNING
TURBOGENERATORS