. Electrical world. ingshop, the turbo unit was transferred by traveling cranes to one ofthe testing foundations. As no foundation bolts are used no furtherpreparation was necessary to operate the turbine than to connectup to the steam and the 36-inch exhaust pipes, each of which hasoutlets at the various testing pits. During the superheated-steam tests, the steam was superheatedby an independent gas-fired superheater, which forms part of thepermanent testing outfit in the Westinghouse turbine shop. The exhaust steam was condensed in an Alberger counter-current Februarv 20, 1904. ELECTRICAL WO
. Electrical world. ingshop, the turbo unit was transferred by traveling cranes to one ofthe testing foundations. As no foundation bolts are used no furtherpreparation was necessary to operate the turbine than to connectup to the steam and the 36-inch exhaust pipes, each of which hasoutlets at the various testing pits. During the superheated-steam tests, the steam was superheatedby an independent gas-fired superheater, which forms part of thepermanent testing outfit in the Westinghouse turbine shop. The exhaust steam was condensed in an Alberger counter-current Februarv 20, 1904. ELECTRICAL WORLD and EXGL\EE,R. 357 surface condenser, provided with separate dry and wet air pumps. the former being of the two-stage type with Corhss gear. This condenser is one of several employed only for testing purposes. Itwas tested for leakage immediately before and after the tests, and the correction applied to the observed steam consumption of theturbine. .^t the conclusion of each test the water in the drainage or hot. l-IG. 2.— FIELD. well of the condenser was left at the same height as at the begin-ning. Even a considerable error in this respect could have no ma-terial effect on the results. The hot well is 36 inches in diameter. ammeters. In each of the three phases were inserted two-currenttransformers, in series, each connected to a low-voltage addition to the two ammeters in each phase, a carefully calibratedSiemens dynamometer was plugged into the various phases at eachreading. The dynamometer readings alone were used in the case ofthe lightest loads, by reason of the difficulty in reading the ammeterswith sufficient accuracy for the purposes of the test. At each readingthree successive observations were taken. .\11 the electrical instruments, including the potential and currenttransformers, were carefully calibrated in the Westinghouse Electric& Manufacturing Companys standardizing laboratory immediatelybefore and immediately after the tests. Pressur
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
