. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ,iie(l tliat they du not becomecompletely compressetl until a ti)ri|iic is exerted equivalentto a loconuitive adhesion of 110 per cent. In the design of the main motors the WestinghouseElectric and Manufacturing Company has followed closelyalong the lines laid down in their design of motors for theexjjerimcntal si>lit-phase locomotive of the PennsylvaniaRailroad luiilt in anticiixition of the Altoona Grade Elec-trification. In the case of the present locomotives, how-ever, but a single mot


. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ,iie(l tliat they du not becomecompletely compressetl until a ti)ri|iic is exerted equivalentto a loconuitive adhesion of 110 per cent. In the design of the main motors the WestinghouseElectric and Manufacturing Company has followed closelyalong the lines laid down in their design of motors for theexjjerimcntal si>lit-phase locomotive of the PennsylvaniaRailroad luiilt in anticiixition of the Altoona Grade Elec-trification. In the case of the present locomotives, how-ever, but a single motor i^er jack shaft is provided as com-pared with two motors ])er jack shaft on the previousNorfolk and Western locomotives, and on the Pennsyl-vania Railroad locomotives just mentioned. Structurally, the motor is of the induction type with awound seconilary arranged so that it can be connected foreither four or eight i)oles, corrcsixmding to locomotive. Master Controller, One of Which Is Located In EachLocomotive Unit speeds of approximately 28 mph. and 14 mph. rings are provided to connect the secondarywindings to hquid rheostats which provide the startingresistance. These collectors are mounted at tlie ends ofthe motor shaft to provide ready accessibility and ease ofinspection. The nominal rating of the traction motors on the onehour basis is 1,000 hp. each. Four motors of one com-plete locomotive unit are capable of developing a tractiveeffort of pounds continuously at 14 mph., and52,500 ]X)unds continuously at 28 ni])h. On a basis of theone hour rating, the tractive efforts developed are 108,000pounds, and 63,000 pounds at 14 mph., and 28 A new and most interesting feature of this locomotiveis the use of an Oil Insulated Force Cooled transformer tank is cylindrical in shape with its upperend projecting slightly above the cab roof. The oil insu-lated type of transform


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901