Title :
Assessment of non-intrusive motor efficiency estimators
Author :
Agamloh, E. ; Wallace, A. ; von Jouanne, A. ; Anderson, Kenneth J. ; Rooks, James A.
Author_Institution :
Motor Syst. Resource Facility, Oregon State Univ., Corvallis, OR, USA
fDate :
27 June-1 July 2004
Abstract :
Three instruments have been evaluated for their ability to estimate the load conditions and efficiency of operating motors based solely on measurements of terminal voltage and current. Laboratory tests, compared to a high accuracy dynamometer system were used to assess the instruments´ accuracy. Field tests were conducted in a paper mill to determine the ease of use and lack of intrusion. In both laboratory and field tests the instruments were applied to 50 hp, 100 hp and 200 hp, 460 V induction motors. Data regarding the relative accuracies of the three instruments, as functions of motor load and supply voltage, are presented together with observations of ease and lack of intrusion in use.
Keywords :
electric current measurement; induction motors; machine testing; paper mills; parameter estimation; test equipment; voltage measurement; 100 hp; 200 hp; 460 V; 50 hp; current measurement; field tests; induction motors; instrument accuracy; laboratory tests; load conditions estimation; motor load; nonintrusive motor efficiency estimators; paper mill; supply voltage; terminal voltage measurement; Electrical resistance measurement; Instruments; Laboratories; Mechanical variables measurement; Power measurement; Shafts; Testing; Torque measurement; Velocity measurement; Voltage;
Conference_Titel :
Pulp and Paper Industry Technical Conference, 2004. Conference Record of the 2004 Annual
Print_ISBN :
0-7803-8282-X
DOI :
10.1109/PAPCON.2004.1338364