Technical Reports

Dual-Mode Locomotive Systems Engineerings Volume I: Summary

  • 01
  • Feb
  • 1981
AUTHOR: L. M. Cook, L. J. Lawson
OFFICE: RPD
SUBOFFICE: RPD-30
REPORT NUMBER: FRA/ORD·80/82.1
KEYWORDS: Locomotives; railroads; electrification; regenerative braking; dual-mode locomotives; electric locomotives
ABSTRACT: This report, Volume I, provides a summary of the systems engineering study undertaken as Phase I of a proposed five-phase program. The intent of the overal I program is the development, in-service demonstration, and ultimate deployment of dual-mode locomotives. This study has confirmed the technical viabi lity of the dual-mode locomotive (DML) based on a modified model SD40-2, which can operate from either a high voltage catenary electrified at 60 Hz or from an onboard diesel engine. The DML is avai lable in both 50- and 25-kv versions and can have a regenerative electric brake capabi lity if required. The weight of a 50-kv, regenerative DML (the heaviest optIon) is under 398,000 Ib, with normal options included. The space requirements for the electric components are compatible with installation on existing locomotive platforms without interfering with the diesel power equipment.

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