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Timothy Raymond
Transformer R&D Engineer

About

Accomplished transformer R&D engineer with 20+ years experience leveraging data science to drive utility asset management innovations. Recognized expert in condition assessment, diagnostics, failure analysis and thermal modeling.

Work Experience

May 2021 – Present
Technical Executive
Subject matter expert in power transformers and substations. Mentor and guide junior engineers and data scientists.
May 2016 – April 2021
Principal Technical Leader
May 2012 – April 2016
Senior Technical Leader
Highlights
  • Developed widely used expert system for power transformer condition assessment. Developed methodology and software used by 100+ utilities.
  • Implemented algorithms for online DGA monitor interpretation.
  • Led forensic investigation of 500kV transformer failure. Produced detailed report on cause.
  • Investigated 138kV transformer LTC failure. Assessed cause and provided recommendations.
  • Developed novel throughfault risk assessment method via high-power lab testing.
  • Researched impacts of climate change on transformers and potential mitigations.
  • Applied machine learning to DGA interpretation to assess performance benefits.
August 2008 – April 2012
Senior Engineer
June 2000 – August 2008
Engineer
Highlights
  • Participated in forensic investigation of high failure rates in HV bushings.
  • Part of multi-discipline audit team reviewing reliability of Vermont Yankee Nuclear Plant.
  • Co-developed widely used transformer thermal rating software. Taught seminars on ratings.
  • Developed distribution transformer loading/aging evaluation method to assess heat storm impacts.

Awards

  • November 2019

    US Patent Office

    System and Method for Assessing Power Transformers

    Patent 10,488,384

Volunteer

IEEE Transformers Committee
2002 – 2015
Voting Member
IEEE Transformers Committee
2021 – Present
Voting Member
CIGRE A2.24 Transformer Thermal Performance
– Present
Working Group Member
CIGRE A2/D1.67 Online DGA Monitoring
– Present
Working Group Member

Contact

707 Swaggertown Rd.
Glenville 12302 US
(518) 229-0194
tcraymond@xfmrexpert.com

Education

  • 2021 Present

    Clarkson University

    PhD

    Electrical Engineering

  • 2008

    Rensselaer Polytechnic Institute

    Masters

    Electric Power Engineering

  • 2000

    Rensselaer Polytechnic Institute

    Bachelors

    Electric Power Engineering

Skills

Transformer Expertise
Condition Assessment & Fleet Management Thermal Modeling and Rating Field Diagnostic Testing & Evaluation Failure Investigation Power Apparatus Bushings LTC Diagnostics & Maintenance On-site Inspection & Quality Control Audits Witness of Factory Acceptance Testing
Other Expertise
Utility Asset Management Instrument Transformers and CCVTs Power Delivery Equipment, Lines & Cables
Programming Languages
C# Python C++ Fortran SQL

Publications

IEEE C57.91 Guide for Loading Mineral-Oil Immersed Transformers
IEEE
May 2009

Chairman of Working Group for Revision, 2002-2009