. Electric railway journal . ating step bearing is operated at a pressure of 700 lb. persquare inch, the drop being obtained by the use of ascrew baffle between the accumulator and the supply of oil to the valve gear and to the upperand middle turbine bearings is furnished by Deaneduplex oil pumps located in the basement. An oil filterplant is provided for the two units, and there are twopriming pumps, one of Piatt and the other of Blakemanufacture. Buses, Switches and Connections The generator leads are carried away from the ma-chine in a 12-in. x 14-in. sheet-iron casing
. Electric railway journal . ating step bearing is operated at a pressure of 700 lb. persquare inch, the drop being obtained by the use of ascrew baffle between the accumulator and the supply of oil to the valve gear and to the upperand middle turbine bearings is furnished by Deaneduplex oil pumps located in the basement. An oil filterplant is provided for the two units, and there are twopriming pumps, one of Piatt and the other of Blakemanufacture. Buses, Switches and Connections The generator leads are carried away from the ma-chine in a 12-in. x 14-in. sheet-iron casing leading tothe basement. For each generator circuit 4 per centreactance is provided. The reactors are installed in afireproof chamber at the basement level, and from themthe leads are carried to a bus and oil-switch room lo-cated in a fireproof extension at one side of thestation building. The electrical arrangements of thestation include two sets of three-phase, 11,000-voltbuses, with motor-operated General Electric type H6. RHODE ISLAND POWER HOUSE—LARGE TURBINE-DRIVEN BLOWERFOR BOILER AIR SUPPLY February 12, 1916] ELECTRIC RAILWAY JOURNAL 303 oil switches with 10-in. pots, arranged to connect anyalternator with either set of buses and any feeder orlocal transformer circuit with either set, the installationbeing controlled from a benchboard in a gallery over-looking the operating room. The oil switches are ofthe non-automatic type except on reverse energy. Nostep-up transformers are required in the station, out-going circuits to the substations being of 11,000-voltdesign. The bus room is 175 ft. long and 28 ft. wide, and con-tains accommodations for fifty-four oil switches of themotor-operated type. The cells also contain disconnect-ing switches designed for locking the blades in position,to avoid disruption in case of heavy loads or short-cir-cuits. In the fronts of the oil switch cells are wire-glass windows, 6 in. x 13 in., and 23 in. x 14 in. in buses are horiz
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