1. P. Pillay and K. A. Fendley "The contribution of energy efficient motors to demand and energy savings in the petrochemical industry", IEEE Trans. Power Syst., vol. 10, no. 2, pp.1085 -1093 1995 2. "IEEE Standard Test Procedure for Polyphase Induction Motors and Generators. IEEE Standard 112, 2004.", 3. "Motor repair, Drivepower. (Oct. 1, 1999). [Online] Available:", [online] Available: http://www.esource. com/public/pdf/Drivepower.pdf 4. H. W. Penrose and B. Bauer "Time savings and energy efficiency through alternate electric motor rewind methods", Proc. Elect. Electron. Insul. Conf., Elect. Manuf. Coil Winding Conf., pp.457 -460 1995 5. C. Wenping and K. J. Bradley "Assessing the impacts of rewind and repeated rewinds on induction motors: Is an opportunity for Re-designing the machine being wasted?", IEEE Trans. Ind. Appl., vol. 42, no. 4, pp.958 -964 2006 6. E. d. C Bortoni , J. Haddad , A. H. M. Santos , E. M. d. Azevedo and R. A. Yamachita "Analysis of repairs on three-phase squirrel-cage induction motors performance", IEEE Trans. Energy Convers., vol. 22, no. 2, pp.383 -388 2007 7. J. R. Holmquist , J. A. Rooks and M. E. Richter "Practical approach for determining motor efficiency in the field using calculated and measured values", IEEE Trans. Ind. Appl., vol. 40, no. 1, pp.242 -248 2004 8. J. S. Hsu , J. D. Kueck , M. Olszewski , D. A. Casada , P. J. Otaduy and L. M. Tolbert "Comparison of induction motor field efficiency evaluation methods", IEEE Tran. Ind. Appl., vol. 34, no. 1, pp.117 -125 1998 9. "In-plant electric motor loading and efficiency techniques, Ontario Hydro Rep., TSDD-90–043, 1990.", 10. J. S. Hsu and B. P. Scoggins "Field test of motor efficiency and load changes through air-gap torque", IEEE Trans. Energy Convers., vol. 10, no. 3, pp.477 -483 1995 11. J. S. Hsu and P. L. Sorenson "Field assessment of induction motor efficiency through air-gap torque", IEEE Trans. Energy Convers., vol. 11, no. 3, pp.489 -494 1996 12. P. Pillay , V. Levin , P. Otaduy and J. Kueck "In-situ induction motor efficiency determination using the genetic algorithm", IEEE Trans. Energy Convers., vol. 13, no. 4, pp.326 -333 1998 13. T. Phumiphak and C. Chat-uthai "An economical method for induction motor field efficiency estimation for use in on-field energy audit and management", Proc. IEEE Int. Conf. Power Syst. Technol., pp.1250 -1254 2004 14. M. S. Aspalli , S. B. Shetagar and S. F. Kodad "Estimation of induction motor field efficiency for energy audit and management using genetic algorithm", Proc. IEEE Int. Conf. Sensing Technol., pp.440 -445 2008 15. M. Cunkas and T. Sag "Efficiency determination of induction motors using multi-objective evolutionary algorithms", Elsevier J. Adv. Eng. Software, vol. 41, pp.255 -261 2010 16. B. Lu , C. Wenping , I. French , K. J. Bradley and T. G. Habetler "Non-intrusive efficiency determination of in-situ induction motors using genetic algorithm and air-gap torque methods", Proc. IEEE 42nd Ind. Appl. Soc. Annu. Meet., pp.1186 -1192 2007 17. V.P. Sakthivel , R. Bhuvaneswari and S. Subramanian "Non-intrusive efficiency estimation method for energy auditing and management of in-service induction motor using bacterial foraging algorithm", IET Electr. Power Appl., vol. 4, no. 8, pp.579 -590 2010 18. F. Waldhart and J. P. Bache "Online efficiency determination of three phase asynchronous machines by start-up data", Proc. IEEE Int. Conf. Diagnostics Elect. Mach., Power Electron. Drives, pp.1 -6 2009 19. C. Grantham , H. Tabatanaei-Yazdi and M. F. Rahman "A novel method for rapid efficiency measurement of three phase induction motors", IEEE Trans. Energy Convers., vol. 14, no. 4, pp.1236 -1240 1999 20. D. J. McKinnon and C. Grantham "Improved efficiency test methods for three-phase induction machines", Proc. IEEE 40th Ind. Appl. Soc. Annu. Meet., pp.466 -473 2005 21. J. D. Kueck , M. Olszewski , D. A. Casada , J. Hsu , P. J. Otaduy and L. M. Tolbert "Assessment of methods for estimating motor efficiency, and load under field conditions", Oak Ridge National Laboratory Rep., ORNL/ TM-13165, 1996, 22. Y. El-Ibiary "An accurate low-cost method for determining electric motors’ efficiency for the purpose of plant energy management", IEEE Trans. Ind. Appl., vol. 39, no. 4, pp.1205 -1210 2003 23. B. W. Williams , J. K. Goodfellow and T. C. Green "Sensorless speed measurement of inverter driven squirrel cage induction motors", Proc. IEEE Int. Conf. Power Electron. Variable-Speed Drives, pp.297 -300 1991 24. A. G. Siraki and P. Pillay "An algorithm for non-intrusive in-situ efficiency estimation of induction machines operating with unbalanced supply conditions", IEEE Trans. Ind. Appl., vol. 48, no. 6, pp.1890 -1900 2012, Accepted for publication 25. "Standard method for determining efficiency and losses from tests, Rotating Electrical Machines-part2-1, 2007 (excluding machines for traction vehicles), IEC Standard 60034-2-1, 2007.",