Use of motor current signature analysis at the EPRI M D Center

Conference · Mon Jan 01 04:00:00 EST 1990

OSTI ID:6943843

Haynes, H D; Kryter, R C; Stewart, B K

Motor current signature analysis (MCSA), a machinery monitoring technology developed by the Oak Ridge National Laboratory (ORNL), has been used to monitor a variety of electric-motor-driven devices at the Philadelphia Electric Company's Eddystone Generating Station as part of a program conducted by the EPRI Monitoring and Diagnostics Center. The purpose of this project is to demonstrate the ability of MCSA to monitor the occurrence of degradation in aging power plant equipment. An important aspect of the work has been the development and demonstration of an on-line, automated motor current data acquisition system for monitoring the performance of eight motor-operated valves (MOVs) located in the Unit 2 turbine steam extraction system. Improvements continue to be made in the on-line monitoring system, including development of an automated data analysis program that significantly reduces the time required to extract diagnostic information from the MOV motor current signatures. Using portable MCSA equipment, motor current data were acquired for additional MOVs, pumps, fans, compressors, and mills. These tests have provided important baseline signatures against which subsequent test data may be compared. This paper provides descriptions of the tested equipment, the MCSA techniques employed, samples of test data acquired from both the on-line and portable data acquisition systems, and plans for future work in this ongoing effort. 8 refs., 22 figs., 3 tabs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6943843
• Report Number(s): CONF-901058-1; ON: DE90012595
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200104 -- Fossil-Fueled Power Plants-- Components
42 ENGINEERING
426000 -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
440800* -- Miscellaneous Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
AGING
AUTOMATION
BLOWERS
CONTROL EQUIPMENT
CURRENT DENSITY
DATA
DATA ACQUISITION SYSTEMS
DATA PROCESSING
ELECTRIC MOTORS
ELECTRIC UTILITIES
ELECTRICAL EQUIPMENT
EQUIPMENT
EXPERIMENTAL DATA
FLOW REGULATORS
INFORMATION
MEASURING METHODS
MONITORING
MOTORS
NUMERICAL DATA
PERFORMANCE TESTING
POWER GENERATION
PROCESSING
PUBLIC UTILITIES
PUMPS
TECHNOLOGY ASSESSMENT
TESTING
TRANSDUCERS
TRANSIENTS
VALVES