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Engineers' Club of Philadelphia


Jonathan Schimpf Presenting at APTA 2014 Rail Conference


On Tuesday, June 17th, Jonathan Schimpf, PE, will present “Ghost Voltages on LA Metro DC Cable Jackets” at the American Public Transportation Association (APTA) 2014 Rail Conference in Montreal, Canada. Jonathan’s presentation is based on his paper of the same title, co-authored by Michael Maziarz (The Burns Group) and Kelvin Zan (LA Metro), and will explore the phenomenon of ghost voltages that can appear on de-energized conductors. Jon’s presentation will discuss the investigations of ghost voltages discovered at several Los Angeles Country Metropolitan Transportation Authority (LA Metro) substations, the on-site field tests and laboratory test results of the affected cables, and whether ghost voltages pose any potential safety concerns to field personnel.


Jonathan is a Traction Power Engineer with Burns, and has specialized electrical engineering design experience for railroad and transit projects, including traction power system design, catenary design, electrical distribution system design and project construction oversight. He recently spent a year on-site as Burns’ Resident Engineer to ensure the timely and successful construction of Miami International Airport’s newest Automated People Mover (APM), and continues to perform load flow simulations of existing and proposed APMs and other transit systems to support client needs. Jonathan is currently designing the replacement of several traction power substations, including the one serving North America’s busiest transportation hub: Amtrak’s New York Penn Station. Jonathan also has experience with numerous other agencies including SEPTA, PATCO, Long Island Rail Road, Metro North Rail Road, PATH and Hudson-Bergen Light Rail, as well as transportation agencies in Connecticut and Florida.

Steve Bezner, PE, Chief Engineer – Traction Power at The Burns Group, will serve as a moderator for the “Traction Power – Advanced Control and Power Systems” track on June 17th at the APTA Rail Conference. This track will cover many topics, including new ideas, practices, systems applications, and problem-solving regarding new traction power protection schemes; ground fault detection and isolation; advanced energy storage systems; and other new or emerging technologies for the traction power industry.

Read more about Jonathan Schimpf