With increased interest in U. S. electrification, it is important that initial capital costs be minimized. Each of the principal components involved in high-voltage ac electrification is examined with the idea of employing the newest technology to reduce the costs of installation, operation and maintenance. Major changes have been substitution of sagged simple catenary for the more costly compound catenary and automatic tensioning which reduces wear on contact wire and pantograph. New wire metallurgy can reduce weight and permit higher tension with lower cost supporting structures; new designs and materials can reduce electrical clearances through bridges and tunnels; computerized design can reduce engineering costs. The pros and cons of 50 kV, as compared with 25 kV, are discussed; packaged substations can reduce the cost with either system. DC track circuits and 60 Hz carrier for cab signals complicate U. S. installations but technologies involving microwave and fiber optics offer the potential for more economical conversions. Locomotive technology is also changing to reduce the cost of new motive power.

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  • Corporate Authors:

    Murphy-Richter Publishing Company

    20 North Wacker Driver
    Chicago, IL  United States  60606
  • Authors:
    • Daniels, A
  • Publication Date: 1981-4

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Filing Info

  • Accession Number: 00334295
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 12 1981 12:00AM