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U.S. Department of Energy
Office of Scientific and Technical Information

Informal report on activities in progress at the EPRI M D (Monitoring and Diagnostics) Center

Conference ·
OSTI ID:5268278
An initial motor current signature analysis (MCSA) has been carried out on several motor-driven devices at the Eddystone power plant. An on-line automated data acquisition system has been installed and is now providing useful motor current signature information for eight Unit No. 2 extraction valves. This system has also been used to identify two significant (and apparently undesirable) extraction valve operational characteristics that are documented in this report. Initial motor current signature examinations of other equipment (eight Unit No. 3 motor-operated valves, four boiler feed pumps, two induced-draft fans, and two mills) have provided interesting detailed baseline information that will be compared with subsequent test data in order to attempt to detect aging and service wear effects and signs of incipient failure. Overall, a considerable amount of baseline motor current data has been acquired, examined, and now documented. Future work will focus on developing the capability of identifying parameter trends that are useful in detecting degradation and other abnormalities in the tested equipment. 1 ref., 100 figs., 3 tabs.
Research Organization:
Oak Ridge National Lab., TN (USA)
Sponsoring Organization:
DOE/ER
DOE Contract Number:
AC05-84OR21400
OSTI ID:
5268278
Report Number(s):
CONF-8911149-1; ON: DE90003708
Country of Publication:
United States
Language:
English