Presenter: Howard W Penrose, Ph.D. CMRP

MotorDoc LLC Lombard, IL |

Electrical Insulation Forensics

Wednesday morning-1/2 day course

Howard Penrose is the president of MotorDoc LLC, a past chair of the Society for Maintenance and Reliability Professionals (SMRP), SMRP government relations energy, smart-grid and infrastructure committee chair, and participates in the American Clean Power Association (formerly AWEA) electric machine and powertrain technical committees.  He is a Certified Maintenance and Reliability Professional (CMRP) and a leader in electrical signature analysis for AC/DC electric machines and related machine learning and augmented intelligence continuous monitoring systems for commercial, industrial, utility and wind industries.  Dr. Penrose has been involved in the development of bio-medical electric machines, General Motors hybrid vehicle motor-systems, special high-temperature and inverter motor designs, and a variety of electric machinery (motor and generator) design support for John Deere hybrid 644 and 944 tractors including the development of insulation life studies.  He has over 35 years of electric machinery repair, design, academia, and consulting including RCFA studies of electrical machinery and electrical insulation systems failure.


This half-day seminar covers aspects of root-cause-failure-analysis (RCFA) of electrical insulation systems in electric machines.  It will provide participants with a method and examples for approaching system failures utilizing an industry recognized process.  

  • An introduction to the RCFA Process 
    • Simple 5-Why 
    • Complex utilizing PROACT methodologies 
  • Tools for forensic investigation 
    • Prefailure histories such as: vibration, infrared, insulation to ground, voltage, current, electrical signature analysis, partial discharge 
    • Additional investigative tools such as: microscope, borescope and other visual and investigative methods 
  • Walk-Through Examples: 
    • Wind Turbine wedge and insulation failures 
    • 460 Volt induction machine 
    • 13.8 kV synchronous machine 
    • Inverter application

Presenter: Douglas Conley

BS and MS in Electrical Engineering BS and MS in Chemistry

Siemens Energy

Insulation Testing of Turbo Generators

Wednesday morning-1/2 day course

Douglas Conley is an industry expert in insulation materials development and electrical testing of high voltage windings. Currently he is a Fellow Engineer at Siemens Energy in Charlotte, NC with over 35 years of experience. His contribution to IEEE working group over decades is essential to standards development


Turbo Generators are designed for operation over a long period of time. High quality stator winding insulation is an important factor to achieve the expected reliability and forced outage rates. This course will provide basic description of stator insulation components and systems. It will include an overview of technical principles, applications and testing requirements outlined in IEEE 56, IEEE Guide for Insulation Maintenance of Electric Machines, along with some points from IEEE 4, 43, 95, and 286.

  • Who should attend:
    • Engineers who require testing and inspection of electric machines especially turbo generators
    • Maintenance, Service and Technical staff responsible for electrical machinery
    • Management of any level
  • Key Benefits:
    • Provide a basic description of stator insulating components and insulation systems
    • Describe the types of tests for machine insulation
    • Additional investigative tools such as: microscope, borescope and other visual and investigative methods 

    • Review of typical parameters and example results
    • Provide pros and cons of various tests


Presenter: Dr. Klaus Kreuger

Electrical Engineering- University of Karlsruhe

Voith Hydro

Grid Stability and Energy Mix Transition Through Pumped Storage Power Plants

Sunday Morning-1/2 day course

Dr. Klaus Krueger holds a degree in electrical engineering from the University of Karlsruhe in Germany. His career started in ABB’s thermal power plant automation division in Mannheim.

In 2004, Dr. Krueger joined Voith Hydro in Heidenheim, Dr. Krueger is a Senior Expert for Plant Safety & Energy Storage Solutions at Voith Hydro.

His contribution to developing new technology and his passion for the pumped hydroelectric storage made him an international expert on this topic. His latest contribution was editing a book chapter in “Pumped Hydroelectric Storage”, which has been published in 2020


This technical seminar is an introductory course to the important role that Pump Hydro Storage Plants serve in increasing grid stability of interconnected power systems using power from a mix of energy sources. The topics include the technical and economic advantages of Pump Hydro Storage Plants. The course will review the design criteria, boundary condition, typical unit arrangements, and special operation modes. This course will analyze case studies in execution of pumped storage plants and current economic problems of PSP.

IEEE EIC Electrical Insulation Overview

Wednesday morning-1/2 day course

Instructor Biographies

Evanne Wang

An applications development and evaluation expert working with DuPont Nomex® paper and pressboard for the past decade. Her focused areas of expertise are evaluating the characteristics of electrical insulating materials including Electrical Insulation Systems (EIS) aging studies. She is involved with several standards bodies such as IEEE, ASTM, and UL and currently chairs IEEE Standards Coordinating Committee 4 on Electrical Insulation, which oversees three standards relevant to the electrical insulation industry (IEEE 1, 98, 99). Wang received her BSEE in electrical engineering from the University of Nevada with a minor in psychology.

Solomon Chiang

Is currently the Director of R&D for the Gund Company, a are a private company with 10 manufacturing facilities in four countries and one of largest global fabricators of polymeric and composite components. Mr. Chiang holds a Ph.D. degree in Chemistry and has 30 years of industrial experience in the manufacturing and applications of polymeric and composite materials. He chairs the NEMA advisory technical committee on Industrial Laminates and consensus body for revision of Insulation Material standards and serves as NEMA’s technical advisor to IEC TC 15. Mr. Chiang is a member of IEEE PES and DEIS and is a voting member of the Transformer Committee. He is also a member of the Standard Technical Panel for UL1558.

Mark Winkeler

Is the Manager Application Technology at the ELANTAS PDG, Inc. formerly the P.D. George Company. He has been with the company since 1982. He is responsible for the application technology group at ELANTAS PDG, Inc. The group’s activities include customer support, agency testing and prototype processing. Mark works closely with R&D and Sales to develop innovations to assist the electrical industry. He is involved with NEMA, ASTM and IEEE DEIS.

Will Lee

Is 3M’s expert in electrical insulating tapes. Will has spent years helping electrical professionals with effective solutions. His 25 years of experience includes application, product and process development roles in the electrical and electronics fields. He currently is an Application Development Engineer supporting the electrical OEM & MRO tape and liquid resin portfolios. Will holds a BS in Engineering Technology from the University of Wisconsin – Stout.

Dr. Nancy Frost

She has been active in the electrical insulation industry for nearly three decades. She now runs Frosty’s Zap Lab, LLC, her materials R+D testing laboratory, while working for Gerome Technologies as Materials and Testing Manager. Nancy’s education includes a B.S. in Chemistry and M.S. & Ph. D. in E.E. from Clarkson University, finishing her PH.D while working for GE Research. She has given more than 100 papers and short courses in the areas of dielectric materials, aging phenomena, and testing, and is active with IEEE standards. Through her various roles, she has had the unique experience to see the points of view of materials suppliers, customers, utilities and manufacturers.


This short course will provide an overview of some of the most important types of insulation used in electrical and transformer machines. Typical applications in machines of the insulation will be discussed as well. The types of insulation discussed would include:

  • Resins and Varnishes
  • Flexible Insulations (papers, films and laminates including mica for high voltage)
  • Thermoset Laminate Solid Composite Insulations
  • Pressure Sensitive Tapes

This course will be of interest to anyone responsible for or wanting to know more about available insulation materials for electrical equipment. It would be of particular benefit to those responsible for the selection of insulation (dielectric) materials, including design engineers and quality personnel. Students and young engineers will also benefit from this thorough introduction to insulating materials for various types of electrical equipment.

This course is a great way to connect with knowledgeable people in the industry! Useful for those new to the industry as well as those that have an interest in exploring dielectric material options for their insulation needs.

The instructors are experts in their fields and collectively have over 100 years of industry experience:

    • William Lee, Application Development Engineer – Electrical Tapes & Liquid Resins3M Electrical Markets Division
    • Evanne Wang, Applications Development Engineer, DuPont
    • Mark Winkeler, Manager Application Technology, ELANTAS PDG, Inc.
    • Dr. Solomon Chiang, Director of R&D, The Gund Company
    • Dr. Nancy Frost, Proprietor, Frosty’s Zap Lab, LLC