Sourcing Wayside HEP Power Systems for Rail Yards

Head End Power Unit Configurations for Passenger Trains In the late 1990s, the American Public Transportation Association (APTA), implemented practices for Head End Power sources throughout the passenger rail industry. According to 3.1.3 in APTA RP-R-015-99, Head End Power (HEP) is defined as “A system by which 480 VAC 3-phase electrical power, to operate auxiliaries,…

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Portable Submarine Shore Power Hook-up Assemblies

For over 20 years, ESL has worked with the US Military worldwide to build custom engineered solutions for power distribution assemblies and ship-to-shore power applications. The U.S. Military has been using Shore Power technology for decades. Sometimes referred to as cold-ironing, shore power enables ships to shut off their engines while in berth and plug into land-based…

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California Transport Refrigeration Unit Regulations in Development

Pending TRU regulations in California may restrict idling at applicable facilities to a maximum of 5 minutes by 2025 in an effort to help improve the environmental impact of the trucking industry. Truck Refrigeration Units, commonly referred to as TRUs, are refrigeration systems that are typically powered by internal combustion engines. TRUs control the environment…

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Product Highlight: ESL’s MIL-C-24368 Shore Power Plugs and Receptacles

Increases in maritime shipping and environmental pollution concerns have created a demand for ship-to-shore power solutions that comply with environmental restrictions in ports and harbors. Cold-ironing, a process of ships shutting down on-board generation and then plugging into shore-side power while in berth, can greatly reduce air pollution in neighboring areas. According to some estimates,…

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