Recommended Practice

Head End Power Source Characteristics


This recommended practice defines the characteristics necessary on new equipment for head end power (HEP) sources, including diesel-driven alternators, inverters and utilitysupplied wayside power. The HEP source is comprised of power source, switchgear, control system (incorporating trainline complete functions) and connections to vehicle HEP trainline(s).

Document History
Document Number Version Publication Date Publication Related Information
APTA PR-E-RP-015-99 10/28/1999 Published Current


head end power source, trainline, 480 VAC



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