Electrical Substation Battery Systems

#electric #power #systems #vts #traction #transit #ias #pes #batteries

IEEE VTS Philadelphia Chapter Meeting

The IEEE Vehicular Technology Society (VTS) Philadelphia Chapter is holding a technical meeting.  The topic is Electrical Substation Battery Systems.  Our speaker is John Kim, Director of Industrial & Utility Markets at EnerSys.

This presentation discusses technical aspects of 125 V dc battery systems used in electrical substations.  Utility and traction power substations typically use 125 V dc battery systems to provide uninterrupted backup power to protective relay systems, switchgear controls, and switchyard equipment.  Batteries are selected based on owners’ preferences and applications.  They are sized based on the anticipated dc load profile upon a loss of power.  Load profiles often include first minute equipment operation, an 8-hour loss of power, and expected switching operations to restore power.  IEEE 485 is a recommended practice for sizing lead-acid batteries for stationary applications.  Mr. John Kim will give a presentation on the history of batteries used in substations and today’s latest battery technologies.

Attendees may apply for 1.0 PDH provided through the IEEE Certificates Program, accepted in all states.
Send $5.00 (USD) payment to Brandon Swartley via Zelle at brandon.swartley@ieee.org and complete the online evaluation at https://r2.ieee.org/philadelphia-vts/forms/.

Evaluation form must be completed and payment received within one week to receive PDH certificate.

  Date and Time




  • Date: 29 Apr 2024
  • Time: 12:00 PM to 01:00 PM
  • All times are (GMT-05:00) US/Eastern
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  • Contact Event Host
  • Email:  brandon.swartley@ieee.org

    Phone: 215-832-3590

  • Starts 15 April 2024 09:00 AM
  • Ends 28 April 2024 09:00 PM
  • All times are (GMT-05:00) US/Eastern
  • No Admission Charge


John Kim of EnerSys


Electrical Substation Battery Systems


John Kim has been in the energy storage industry for more than 35 years and is currently working as the Director of Industrial & Utility markets at EnerSys.  He received his Bachelor of Science degree in Materials Engineering and his Master of Science in Engineering Management from Drexel University in Philadelphia, PA.  John’s background includes Engineering and Technical Marketing.  He is knowledgeable in energy storage systems selection, specification writing, maintenance, and troubleshooting.  John is an active member of the Institute of Electrical and Electronics Engineers (IEEE) standards committee and a member of Battcon’s Technical Committee.  He wrote numerous papers and presented at various industry-related conferences over the years.


Address:United States



Technical presentation

  • History of substation batteries

  • Today’s latest battery technology

  • Battery and charger selection


IEEE VTS Philadelphia Chapter Officers:

Chapter Chair:  Brandon S. Swartley, P.E., STV Incorporated, brandon.swartley@ieee.org
Vice-Chair:  Harvey Glickenstein, P.E., F.I.R.S.E., h.glickenstein@ieee.org
Secretary and Treasurer:  Robert Fisher, P.E., WSP, rbfisher@ieee.org