1. Hanna, R. : Power Quality Challenges in Industry, The McNaughton Lecture, IEEE/CCECE 2020, September 02, 2020, London, Ontario. [PDF] , McNaughton Lecture (Video)
  2. Lawrence, R., Hanna, R.A., Lockley,W, Paes, R.: “Standard Updates For Adjustable-Speed ac Drives” IEEE Industry Applications Magazine, Volume 24, No. 1, January/February 2018, page 42-51.[PDF] 
  3. Lawrence, R., Hanna, R.A., Lockley,W, Paes, R.: “IEEE Standard 1566-2015 Performance of Adjustable Speed AC Drives Rated 375 kW and Larger” PCIC/IEEE, Industry Application Society, 63rd Annual Conference, September 2016, Philadelphia, Pennsylvanian. Awarded 2nd Best paper.[pdf]
  4. Bapat, A., Hanna, R.A., Panetta,S.: “Advanced Concepts in High resistance Grounding” PPIC/IEEE, Industry Application Society, 61st Annual Conference, June 2015, Milwaukee, Wisconsin, page 15-24. [pdf]
  5. Bapat, A., Hanna, R.A., Panetta,S.: “Advanced Concepts in High resistance Grounding” PCIC/IEEE, Industry Application Society, 59th Annual Conference, September 2012, New Orleans, Louisiana, page 223-230. [pdf]
  6. Hanna, R.A. & Schmitt, D.W.: “Failure Analysis of 7500 HP Induction Motors Driving Reciprocating Compressor with Three Years in Service” IEEE Industry Applications Magazine, Volume 18, No. 4, July/August 2012, page 40-46.[pdf]
  7. Schmitt, D.W & Hanna, R.A.: “Mechanical and Electrical Challenges of Large Induction Motors Driving Reciprocating Compressors With Three Years Service”, 2010 Gas Machinery Conference (GMC), Phoenix, Arizona. [PDF]
  8. Hanna, R.A. & Schmitt, D.W.: “Failure Analysis of 7500 HP Induction Motors Driving Reciprocating Compressor with Three Years in Service” PCIC/IEEE, Industry Applications Society, 57th Annual Conference, September 2010, San Antonio, Texas, page 281-286.[PDF].
  9. Endrejat, F., Hanna, R.A. & Shultz, J. : “Ensuring Availability of a Large Adjustable Speed Drive for Process Gas Compressor Application Rated 11 KV, 15.5 MW (20778 hp)” IEEE Transaction on Industry Applications, Volume 46, No. 5, Sep/Oct, 2010, page 1843-1849. [PDF]
  10. Endrejat, F., Hanna, R.A. & Shultz, J. : “Ensuring Availability of a Large Adjustable Speed Drive for Process Gas Compressor Application Rated 11 KV, 15.5 MW (20778 hp)” PCIC/IEEE, Industry Applications Society, 56th Annual Conference, September 2009, Anaheim, California. [PDF]
  11. Murray, D., Dickin, J., Hanna, R.A., & Morin, T.: “High Resistance Grounding – Avoiding Unnecessary Pitfalls” IEEE Transaction on Industry Applications, Volume 45, No. 3, May/June 2009.[PDF]
  12. Hanna, R.A. & Ezer, D: “Minimizing Plant Interruption Caused by Line Disturbances Using Active Voltage Conditioners” Webinar May 21, 2008, IEEE Canada. [PDF]
  13. Murray, D., Hanna, R.A. Dickin, J., & Morin, T. “High Resistance Grounding – Avoiding Misapplication of TVSS and UPS System.” Electricity Today Magazine, April 2008, Volume 20, No. 3, page 12. [PDF]
  14. Murray, D., Dickin, J., Hanna, R.A., & Morin, T. “High Resistance Grounding – Avoiding Unnecessary Pitfalls.” PCIC/IEEE, Industry Application Society, 54th Annual Conference, September 2007, Calgary, Alberta, Page 39-47. [PDF]
  15. Hanna, R.A., Klinowski, P. & Hiscock, W: “Failure Analysis of Three Slow Speed Induction Motors For Reciprocating Load Application” IEEE Transaction on Industry Applications, Volume 43, No. 2, March/April 2007.[PDF]
  16. Hanna, R.A., Klinowski, P. & Hiscock, W: “Failure Analysis Of Three Slow Speed Induction Motors For Reciprocating Load Application” PCIC/IEEE, Industry Applications Society, 52nd Annual Conference, September 2005, Denver, Colorado. [PDF]
  17. Hanna, R. A.: “What Can We Learn About AC Systems from Monitoring Batteries?” INFBAT Conference, Toronto, September 2003. [PDF]
  18. Hanna, R.A., Ezer, D. & Penny, J: Discussion “AVC for Industrial Plants” IEEE Transaction on Industry Applications, Volume 39, No. 4, July/August 2003. [PDF]
  19. Ezer, D., Hanna, R.A & Penny, J: “Active Voltage Correction for Industrial Plants” IEEE Transaction on Industry Applications, Volume 38, No. 6, Nov/ December 2002, page 1641-1646. [PDF]
  20. Hanna, R.A: “Power Quality, Who’s Responsible – Utility or Facility” 3rd Power Quality Conference, Toronto, Canada, November 2001. [PDF]
  21. Penny, J.; Hanna, R.A. & Ezer. D: “Active Voltage Correction for Industrial Plants” PCIC/IEEE, Industry Applications Society, 47th Annual Conference, September 2001, Toronto, Ontario. [PDF]
  22. Dickin, J.; Hanna, R.A; Randall & S.; Dedeurwaerder, C.: “Challenges Encountered when Expanding a World Class Petrochemical Facility”, IEEE Transaction on Industry Applications, 2001 July/August, Volume 37, Number 4, Page 1109-1119. [PDF]
  23. Hanna, R.A. & Randall, S: “Medium Voltage Adjustable Speed Drive Retrofit of an Existing Eddy Current Clutch Extruder Applications”, IEEE Transaction on Industry Applications, 2000 November/December, Volume 33,Number 6, page1750-1755. [PDF]
  24. Dickin, J. ; Hanna, R.A.; Randall & S.; Dedeurwaerder, C.: “Design Challenges Encountered when Expanding a World Class Petrochemical Facility”, PCIC/IEEE, Industry Applications Society, 47th Annual Conference, September 2000, page 103-114, San Antonio, Texas. [PDF]
  25. Hanna, R.A. & Randall, S.: “Use of Adjustable Speed Drives for Extruder Applications”, PCIC/IEEE, Industry Applications Society, 46th Annual Conference, September 1999, P241,San Diego, California. [PDF]
  26. Hanna, R.A. & Prabhu, S: “Medium Voltage Drives-Users’ and Manufacturers’ Experiences”, IEEE Transaction on Industry Applications, 1997 November/December, Volume 33,Number 6.page 1407 [PDF]
  27. Hanna, R.A.: “Low Voltage & Medium Voltage ASDs: Application Considerations”, 5th Annual Pulp & Paper Conference, September 1997, Sudbury, Ontario. [PDF]
  28. Hanna, R.A. & Prabhu, S: “Medium Voltage Drives-Users’ and Manufacturers’ Experiences”, PCIC/IEEE, Industry Applications Society, 43rd Annual Conference, September 1996, page 115-123, Philadelphia, Pennsylvania. [PDF]
  29. Hanna, R.A. & Luscombe, J.: “Survey of Users Experience with Adjustable Speed Drives”, PCIC/IEEE, Industry Applications Society,40th Annual Conf.,Sept. 1993, page 271-277 St.Louis, Mo. [PDF]
  30. Hanna, R.A. Bulmer, P. & Kohistani, R.: “Minimizing Refinery Upset during Power Interruptions Using PLC Control “, IEEE, Industry Applications Society. 39th Annual Conf., 1992 Petroleum and Chemical Industry Conference, September 1992, page 185-195, San Antonio, Texas. [PDF]
  31. Hanna, R.A.: “Survey of Users’ Experience with Adjustable Speed Drives rated 500 HP and Above”, 1992 Canadian Utility Trade Alley Symposium, June 1992, Toronto, Ontario. [PDF]
  32. Hanna, R.A.: “ASDs Application Consideration”, Dupont Canada Workshop, May 1992 Canadian Utility Trade Alley Symposium, May 1992, Kingston, Ontario. [PDF] 
  33. Hanna, R.A.: “Effects of Harmonics on Power System Equipment and Loads” Third Alberta Exposition and Conference on Power Quality, October 1991, Calgary, Alberta.
  34. Hanna, R.A.: “ASDs – Their Applications, Types and Harmonics Behaviors” , Showcase 90 Seminar sponsored by BC Hydro, Vancouver, February 1990 (Invited speaker)  [PDF]
  35. Hanna, R.A.: “Harmonics and Technical Barriers in Adjustable Speed Drives” – IEEE Transaction on Industry Applications, 1989 September / October, Volume 25, Number 5. Page 894-900. [PDF]
  36. Hanna, R.A.: “Harmonics and Technical Barriers in Adjustable Speed Drives” – 24th Industry Applications Conference, October 1989, Page 1632-1640, San Diego, California [PDF]
  37. Hanna, R.A.: “Adjustable Speed Drives – Effects of Harmonics on Power System Equipment and Loads”, symposiums on energy efficient motors and adjustable speed drives, sponsored by Nova Scotia Power and Canadian Elect. Assoc., Halifax, September 1988, (Invited speaker). [PDF]
  38. Hanna, R.A.: “Harmonics and Technical Barriers in Adjustable Speed Drives” – IEEE / PCIC, 35th Annual Petroleum and Chemical Industry Conference, September 1988, page 165, Dallas, Texas. [PDF]
  39. Hanna, R.A.: “Harmonics and Technical Barriers” – Symposium on Electrical Variable Speed Drives, Sponsored by Ontario Hydro and the Ontario Ministry of Energy, Toronto, April, 1987, (Invited speaker). [PDF] 
  40. Hanna, R.A. & MacDonald, D.C.: “The Six-Phase Power System” – IEEE Transaction on Power Apparatus and System, August 1983, page 2600, Volume PAS-102, Number 8. [PDF]
  41. Hanna, R.A., MacDonald, D.C. & Allen, P.H.G.: “The Six-Phase Generator and its Associated Transformer” – Fourteenth Universities Power Engineering Conference, Loughborough University of Technology, England, April 1979. [PDF]
  42. Hanna, R.A., Ph.D Thesis, January 1978, University of London, Imperial College of Science & Technology, Department of Electrical Engineering. “The Six-Phase Two-Circuit Synchronous Generator and Its Associated Transformer. [PDF]
  43. Hanna, R.A., M.Sc Dissertation, December 1973, University of London, Queen Mary College, Department of Electrical Engineering. “Asynchronous Operation of AC Generator with and without Rectifier in Field Circuit. [PDF]