Use of motor current signature analysis at the EPRI M D Center
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. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6943843
- Report Number(s):
- CONF-901058-1; ON: DE90012595
- Resource Relation:
- Conference: 4. incipient failure detection conference: predictive maintenance for the 90's, Philadelphia, PA (USA), 15-17 Oct 1990
- Country of Publication:
- United States
- Language:
- English
Similar Records
Informal report on activities in progress at the EPRI M D (Monitoring and Diagnostics) Center
Motor current signature analysis for determining operational readiness of motor-operated valves (MOVs)
Related Subjects
42 ENGINEERING
20 FOSSIL-FUELED POWER PLANTS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
CURRENT DENSITY
MONITORING
ELECTRIC MOTORS
AGING
AUTOMATION
BLOWERS
DATA ACQUISITION SYSTEMS
DATA PROCESSING
ELECTRIC UTILITIES
ELECTRICAL EQUIPMENT
EXPERIMENTAL DATA
MEASURING METHODS
PERFORMANCE TESTING
POWER GENERATION
PUMPS
TECHNOLOGY ASSESSMENT
TRANSDUCERS
TRANSIENTS
VALVES
CONTROL EQUIPMENT
DATA
EQUIPMENT
FLOW REGULATORS
INFORMATION
MOTORS
NUMERICAL DATA
PROCESSING
PUBLIC UTILITIES
TESTING
440800* - Miscellaneous Instrumentation- (1990-)
426000 - Engineering- Components
Electron Devices & Circuits- (1990-)
200104 - Fossil-Fueled Power Plants- Components
990200 - Mathematics & Computers