. Electric railway journal . own in Table IIIthe performance for the period of Jan. 15-31, 1918, six-hundreths of 1 per cent, is simply astounding for winterservice over mountain grades. An examination of the detail records of defects andtheir character discloses the somewhat unexpected factthat the most novel part of the equipment—the phaseconverter—is also the most rugged. In fact, themechanical parts have given more concern than theelectrical parts, because of the extremely heavy a large portion of the mechanical defects aredue to plain wear. It is impracticable to go into th
. Electric railway journal . own in Table IIIthe performance for the period of Jan. 15-31, 1918, six-hundreths of 1 per cent, is simply astounding for winterservice over mountain grades. An examination of the detail records of defects andtheir character discloses the somewhat unexpected factthat the most novel part of the equipment—the phaseconverter—is also the most rugged. In fact, themechanical parts have given more concern than theelectrical parts, because of the extremely heavy a large portion of the mechanical defects aredue to plain wear. It is impracticable to go into thedetails of the experiences with these locomotives fromthe beginning, three and a half years ago. It may be ob-served here, however, that a general overhauling of theseengines is carried out only once a year; and the panto-graph shoes (sheet steel) are good for 10,000 to 12,000miles or say quarterly replacements. The power plant is located at Bluestone, 11 miles fromBluefield. This is not the center of the power load but. PROFILE OF THE NORFOLK & WESTERN ELECTRIFICA-TION, INCLUDING THE TUG FORK BRANCH had to be chosen because it was the only place that hadenough water for condensing purposes. To the original installation of three 11,250 kva. West-inghouse turbo-generators there has been added a fourthunit alike in all respects except that the condenser pumpis electrically driven to improve steam balance on lightloads. This addition, of course, is to take care of the August 24, 1918 Keep the Home Wheels Turning 325 extension. The boilers now comprise twelve instead, often B & W Stirling units of 677 hp. each. The transformer substation locations and equipments,varying according to grade and load conditions, are asfollows: No. 1—Bluefield station, between Bluefield andGraham for per cent grade, two 3000-kva., 44,000/11,000-volt transformers. No. 2—In the Bluestone power house, for per centgrade, two 3000-kva. transformers. No. 3—Maybeury, for 2 per cent grade,
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