. Electric railway journal . By-Pass Valve on Low-Pressure Turbine of exhaust to pass through the turbine is elective to a greatdegree. Mr. Dreyfus also considered the application of thelow-pressure turbine to intermittently operated and reversingengines; to installations where there is a periodic cessation ofthe exhaust steam supply; to plants which can utilize waste heatfrom gas engines, etc. In conclusion, he quoted some economyrecords and compared the efficiency range of the engine versusthe turbine. Some sixty plants, eleven of them electric rail-ways, are now using one make of low-pressu
. Electric railway journal . By-Pass Valve on Low-Pressure Turbine of exhaust to pass through the turbine is elective to a greatdegree. Mr. Dreyfus also considered the application of thelow-pressure turbine to intermittently operated and reversingengines; to installations where there is a periodic cessation ofthe exhaust steam supply; to plants which can utilize waste heatfrom gas engines, etc. In conclusion, he quoted some economyrecords and compared the efficiency range of the engine versusthe turbine. Some sixty plants, eleven of them electric rail-ways, are now using one make of low-pressure turbine. 10,000-KVA WATER-COOLED TRANSFORMERS The Pennsylvania Water & Power Company generates powerfrom the Susquehanna River at McCalls Ferry, where it willhave an ultimate capacity estimated at 100,000 kw. At presentthe power generated is transmitted 40 miles to lines to other large cities are also 10,000-kva Transformer Installed in a Baltimore Substationfor Power from McCalls Ferry The Baltimore substation is now equipped for 40,000 kva, butspace is provided for additional transforming and switchingapparatus. The present equipment consists of four io,ooo-kva,three-phase Westinghouse transformers, which are of particularinterest because they are the largest transformers ever are of the water-cooled type and are used to step downthe 25-cycle current from 70,000 volts to 13,200 volts. Thetransformer tank is elliptical, having an over-all length of 15 in. and an over-all width of 8 ft. 8 in. The height to thetop of the terminal is over 16 ft. and the joint between thecase and cover is Iij/J ft. from the floor. The total weight ofeach transformer complete with oil is about 145,000 lb., ornearly 75 tons. The transformers are of the core type, water-cooled. Thecooling water is visible at its exit, so that any stoppage or in-equality of flow in the parallel cooling co
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