. The Street railway journal . s, of Dayton, Ohio. A frictionbrake is provided on the end of the water-wdieel shaft ofsufficient capacity to stop the wheels when the gates areclosed. Each unit is provided with a Lombard type N ver-tical governor. To these wheels are direct connected threeAllis-Chalmers generators of the standard two-bearingwater-wheel type with horizontal shaft and a normal ratedoutput of 2500 kw each at a terminal pressure of 11,000volts, three-phase. The revolving field has twelve polesand the speed is 330 r. p. m., thus giving a frequency of 33cycles per second. Each altern
. The Street railway journal . s, of Dayton, Ohio. A frictionbrake is provided on the end of the water-wdieel shaft ofsufficient capacity to stop the wheels when the gates areclosed. Each unit is provided with a Lombard type N ver-tical governor. To these wheels are direct connected threeAllis-Chalmers generators of the standard two-bearingwater-wheel type with horizontal shaft and a normal ratedoutput of 2500 kw each at a terminal pressure of 11,000volts, three-phase. The revolving field has twelve polesand the speed is 330 r. p. m., thus giving a frequency of 33cycles per second. Each alternator is equipped with adirect-connected exciter, the armature of which is mountedon the end of the alternator shaft; the exciter field yoke iscarried on an extension of the bed of the alternator. Thebearings are of the ring oiling self-aligning type, water-jacketed. The stator yoke is of unusually stiff construction,being provided with heavy end heads, which serve to clampthe laminations and at the same time reinforce the main. CAZADERO POWER HOUSE ON THE CLACKAMAS RIVER part of the yoke. The laminations are of especially selectedsteel carefully varnished and assembled. The core is pro-vided with numerous ventilating ducts through which astrong blast of air is forced by the revolving field. Thearmature coils are placed in open slots and can thus beeasily replaced in case of damage. Tests on these machinesshowed that they were capable of carrying full load continu-ously with a rise in temperature less than 35 degs. C, thusgiving them a liberal margin for overloads. The current is conveyed from the generator to the type-H-3 motor-operated General Electric oil switches by May 18, 1907.] STREET RAILWAY JOURNAL. 869 three - conductor, 15,000-volt cambric insulated cables. A reinforced concrete structure consisting of a core wallflanked by wings and surmounted by a gallery upon whichare located switch cells and a concrete bus-bar compartmentforms the high-tension equipment of the sta
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
